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/**
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 *  '$RCSfile$'
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 *  Copyright: 2000-2011 Regents of the University of California and the
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 *              National Center for Ecological Analysis and Synthesis
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 *
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 *   '$Author:  $'
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 *     '$Date:  $'
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
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package edu.ucsb.nceas.metacat.dataone;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.PipedInputStream;
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import java.io.PipedOutputStream;
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import java.lang.reflect.InvocationTargetException;
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import java.math.BigInteger;
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import java.sql.SQLException;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.List;
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import java.util.concurrent.locks.Lock;
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import javax.servlet.http.HttpServletRequest;
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import org.apache.commons.beanutils.BeanUtils;
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import org.apache.log4j.Logger;
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import org.dataone.client.v2.CNode;
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import org.dataone.client.v2.MNode;
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import org.dataone.client.v2.itk.D1Client;
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import org.dataone.service.cn.v2.CNAuthorization;
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import org.dataone.service.cn.v2.CNCore;
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import org.dataone.service.cn.v2.CNRead;
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import org.dataone.service.cn.v2.CNReplication;
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import org.dataone.service.cn.v2.CNView;
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import org.dataone.service.exceptions.BaseException;
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import org.dataone.service.exceptions.IdentifierNotUnique;
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import org.dataone.service.exceptions.InsufficientResources;
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import org.dataone.service.exceptions.InvalidRequest;
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import org.dataone.service.exceptions.InvalidSystemMetadata;
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import org.dataone.service.exceptions.InvalidToken;
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import org.dataone.service.exceptions.NotAuthorized;
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import org.dataone.service.exceptions.NotFound;
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import org.dataone.service.exceptions.NotImplemented;
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import org.dataone.service.exceptions.ServiceFailure;
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import org.dataone.service.exceptions.UnsupportedType;
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import org.dataone.service.exceptions.VersionMismatch;
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import org.dataone.service.types.v1.AccessPolicy;
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import org.dataone.service.types.v1.Checksum;
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import org.dataone.service.types.v1.ChecksumAlgorithmList;
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import org.dataone.service.types.v1.Event;
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import org.dataone.service.types.v1.Identifier;
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import org.dataone.service.types.v1.NodeReference;
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import org.dataone.service.types.v1.NodeType;
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import org.dataone.service.types.v1.ObjectFormatIdentifier;
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import org.dataone.service.types.v1.ObjectList;
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import org.dataone.service.types.v1.ObjectLocationList;
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import org.dataone.service.types.v1.Permission;
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import org.dataone.service.types.v1.Replica;
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import org.dataone.service.types.v1.ReplicationPolicy;
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import org.dataone.service.types.v1.ReplicationStatus;
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import org.dataone.service.types.v1.Session;
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import org.dataone.service.types.v1.Subject;
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import org.dataone.service.types.v1_1.QueryEngineDescription;
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import org.dataone.service.types.v1_1.QueryEngineList;
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import org.dataone.service.types.v2.Node;
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import org.dataone.service.types.v2.NodeList;
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import org.dataone.service.types.v2.ObjectFormat;
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import org.dataone.service.types.v2.ObjectFormatList;
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import org.dataone.service.types.v2.SystemMetadata;
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import org.dataone.service.types.v2.util.ServiceMethodRestrictionUtil;
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import org.dataone.service.util.TypeMarshaller;
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import org.jibx.runtime.JiBXException;
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90
import edu.ucsb.nceas.metacat.DBUtil;
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import edu.ucsb.nceas.metacat.EventLog;
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import edu.ucsb.nceas.metacat.IdentifierManager;
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import edu.ucsb.nceas.metacat.McdbDocNotFoundException;
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import edu.ucsb.nceas.metacat.dataone.hazelcast.HazelcastService;
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import edu.ucsb.nceas.metacat.properties.PropertyService;
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import edu.ucsb.nceas.utilities.PropertyNotFoundException;
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/**
99
 * Represents Metacat's implementation of the DataONE Coordinating Node 
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 * service API. Methods implement the various CN* interfaces, and methods common
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 * to both Member Node and Coordinating Node interfaces are found in the
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 * D1NodeService super class.
103
 *
104
 */
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public class CNodeService extends D1NodeService implements CNAuthorization,
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    CNCore, CNRead, CNReplication, CNView {
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  /* the logger instance */
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  private Logger logMetacat = null;
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  /**
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   * singleton accessor
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   */
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  public static CNodeService getInstance(HttpServletRequest request) { 
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    return new CNodeService(request);
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  }
117
  
118
  /**
119
   * Constructor, private for singleton access
120
   */
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  private CNodeService(HttpServletRequest request) {
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    super(request);
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    logMetacat = Logger.getLogger(CNodeService.class);
124
        
125
  }
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127
  /**
128
   * Set the replication policy for an object given the object identifier
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   * 
130
   * @param session - the Session object containing the credentials for the Subject
131
   * @param pid - the object identifier for the given object
132
   * @param policy - the replication policy to be applied
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   * 
134
   * @return true or false
135
   * 
136
   * @throws NotImplemented
137
   * @throws NotAuthorized
138
   * @throws ServiceFailure
139
   * @throws InvalidRequest
140
   * @throws VersionMismatch
141
   * 
142
   */
143
  @Override
144
  public boolean setReplicationPolicy(Session session, Identifier pid,
145
      ReplicationPolicy policy, long serialVersion) 
146
      throws NotImplemented, NotFound, NotAuthorized, ServiceFailure, 
147
      InvalidRequest, InvalidToken, VersionMismatch {
148
      
149
      // do we have a valid pid?
150
      if (pid == null || pid.getValue().trim().equals("")) {
151
          throw new InvalidRequest("4883", "The provided identifier was invalid.");
152
          
153
      }
154
      
155
      /*String serviceFailureCode = "4882";
156
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
157
      if(sid != null) {
158
          pid = sid;
159
      }*/
160
      // The lock to be used for this identifier
161
      Lock lock = null;
162
      
163
      // get the subject
164
      Subject subject = session.getSubject();
165
      
166
      // are we allowed to do this?
167
      if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
168
          throw new NotAuthorized("4881", Permission.CHANGE_PERMISSION
169
                  + " not allowed by " + subject.getValue() + " on "
170
                  + pid.getValue());
171
          
172
      }
173
      
174
      SystemMetadata systemMetadata = null;
175
      try {
176
          lock = HazelcastService.getInstance().getLock(pid.getValue());
177
          lock.lock();
178
          logMetacat.debug("Locked identifier " + pid.getValue());
179

    
180
          try {
181
              if ( HazelcastService.getInstance().getSystemMetadataMap().containsKey(pid) ) {
182
                  systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
183
                  
184
              }
185
              
186
              // did we get it correctly?
187
              if ( systemMetadata == null ) {
188
                  throw new NotFound("4884", "Couldn't find an object identified by " + pid.getValue());
189
                  
190
              }
191

    
192
              // does the request have the most current system metadata?
193
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
194
                 String msg = "The requested system metadata version number " + 
195
                     serialVersion + " differs from the current version at " +
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                     systemMetadata.getSerialVersion().longValue() +
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                     ". Please get the latest copy in order to modify it.";
198
                 throw new VersionMismatch("4886", msg);
199
                 
200
              }
201
              
202
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
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              throw new NotFound("4884", "No record found for: " + pid.getValue());
204
            
205
          }
206
          
207
          // set the new policy
208
          systemMetadata.setReplicationPolicy(policy);
209
          
210
          // update the metadata
211
          try {
212
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
213
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
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              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
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              notifyReplicaNodes(systemMetadata);
216
              
217
          } catch (RuntimeException e) {
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              throw new ServiceFailure("4882", e.getMessage());
219
          
220
          }
221
          
222
      } catch (RuntimeException e) {
223
          throw new ServiceFailure("4882", e.getMessage());
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225
      } finally {
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          lock.unlock();
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          logMetacat.debug("Unlocked identifier " + pid.getValue());
228
          
229
      }
230
    
231
      return true;
232
  }
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  /**
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   * Deletes the replica from the given Member Node
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   * NOTE: MN.delete() may be an "archive" operation. TBD.
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   * @param session
238
   * @param pid
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   * @param nodeId
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   * @param serialVersion
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   * @return
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   * @throws InvalidToken
243
   * @throws ServiceFailure
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   * @throws NotAuthorized
245
   * @throws NotFound
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   * @throws NotImplemented
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   * @throws VersionMismatch
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   */
249
  @Override
250
  public boolean deleteReplicationMetadata(Session session, Identifier pid, NodeReference nodeId, long serialVersion) 
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  	throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, NotImplemented, VersionMismatch {
252
	  
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	  	// The lock to be used for this identifier
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		Lock lock = null;
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		// get the subject
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		Subject subject = session.getSubject();
258

    
259
		// are we allowed to do this?
260
		/*boolean isAuthorized = false;
261
		try {
262
			isAuthorized = isAuthorized(session, pid, Permission.WRITE);
263
		} catch (InvalidRequest e) {
264
			throw new ServiceFailure("4882", e.getDescription());
265
		}
266
		if (!isAuthorized) {
267
			throw new NotAuthorized("4881", Permission.WRITE
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					+ " not allowed by " + subject.getValue() + " on "
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					+ pid.getValue());
270

    
271
		}*/
272
		if(session == null) {
273
		    throw new NotAuthorized("4882", "Session cannot be null. It is not authorized for deleting the replication metadata of the object "+pid.getValue());
274
		} else {
275
		    if(!isCNAdmin(session)) {
276
		        throw new NotAuthorized("4882", "The client -"+ session.getSubject().getValue()+ "is not a CN and is not authorized for deleting the replication metadata of the object "+pid.getValue());
277
		    }
278
		}
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280
		SystemMetadata systemMetadata = null;
281
		try {
282
			lock = HazelcastService.getInstance().getLock(pid.getValue());
283
			lock.lock();
284
			logMetacat.debug("Locked identifier " + pid.getValue());
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286
			try {
287
				if (HazelcastService.getInstance().getSystemMetadataMap().containsKey(pid)) {
288
					systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
289
				}
290

    
291
				// did we get it correctly?
292
				if (systemMetadata == null) {
293
					throw new NotFound("4884", "Couldn't find an object identified by " + pid.getValue());
294
				}
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296
				// does the request have the most current system metadata?
297
				if (systemMetadata.getSerialVersion().longValue() != serialVersion) {
298
					String msg = "The requested system metadata version number "
299
							+ serialVersion
300
							+ " differs from the current version at "
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							+ systemMetadata.getSerialVersion().longValue()
302
							+ ". Please get the latest copy in order to modify it.";
303
					throw new VersionMismatch("4886", msg);
304

    
305
				}
306

    
307
			} catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
308
				throw new NotFound("4884", "No record found for: " + pid.getValue());
309

    
310
			}
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312
			// check permissions
313
			// TODO: is this necessary?
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			/*List<Node> nodeList = D1Client.getCN().listNodes().getNodeList();
315
			boolean isAllowed = ServiceMethodRestrictionUtil.isMethodAllowed(session.getSubject(), nodeList, "CNReplication", "deleteReplicationMetadata");
316
			if (!isAllowed) {
317
				throw new NotAuthorized("4881", "Caller is not authorized to deleteReplicationMetadata");
318
			}*/
319
			  
320
			// delete the replica from the given node
321
			// CSJ: use CN.delete() to truly delete a replica, semantically
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			// deleteReplicaMetadata() only modifies the sytem metadata entry.
323
			//D1Client.getMN(nodeId).delete(session, pid);
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325
			// reflect that change in the system metadata
326
			List<Replica> updatedReplicas = new ArrayList<Replica>(systemMetadata.getReplicaList());
327
			for (Replica r: systemMetadata.getReplicaList()) {
328
				  if (r.getReplicaMemberNode().equals(nodeId)) {
329
					  updatedReplicas.remove(r);
330
					  break;
331
				  }
332
			}
333
			systemMetadata.setReplicaList(updatedReplicas);
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335
			// update the metadata
336
			try {
337
				systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
338
				systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
339
				HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
340
			} catch (RuntimeException e) {
341
				throw new ServiceFailure("4882", e.getMessage());
342
			}
343

    
344
		} catch (RuntimeException e) {
345
			throw new ServiceFailure("4882", e.getMessage());
346
		} finally {
347
			lock.unlock();
348
			logMetacat.debug("Unlocked identifier " + pid.getValue());
349
		}
350

    
351
		return true;	  
352
	  
353
  }
354
  
355
  /**
356
   * Deletes an object from the Coordinating Node
357
   * 
358
   * @param session - the Session object containing the credentials for the Subject
359
   * @param pid - The object identifier to be deleted
360
   * 
361
   * @return pid - the identifier of the object used for the deletion
362
   * 
363
   * @throws InvalidToken
364
   * @throws ServiceFailure
365
   * @throws NotAuthorized
366
   * @throws NotFound
367
   * @throws NotImplemented
368
   * @throws InvalidRequest
369
   */
370
  @Override
371
  public Identifier delete(Session session, Identifier pid) 
372
      throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, NotImplemented {
373
      
374
      String localId = null;      // The corresponding docid for this pid
375
	  Lock lock = null;           // The lock to be used for this identifier
376
      CNode cn = null;            // a reference to the CN to get the node list    
377
      NodeType nodeType = null;   // the nodeType of the replica node being contacted
378
      List<Node> nodeList = null; // the list of nodes in this CN environment
379

    
380
      // check for a valid session
381
      if (session == null) {
382
        	throw new InvalidToken("4963", "No session has been provided");
383
        	
384
      }
385

    
386
      // do we have a valid pid?
387
      if (pid == null || pid.getValue().trim().equals("")) {
388
          throw new ServiceFailure("4960", "The provided identifier was invalid.");
389
          
390
      }
391
      
392
      String serviceFailureCode = "4962";
393
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
394
      if(sid != null) {
395
          pid = sid;
396
      }
397

    
398
	  // check that it is CN/admin
399
	  boolean allowed = isAdminAuthorized(session);
400
	  
401
	  // additional check if it is the authoritative node if it is not the admin
402
      if(!allowed) {
403
          allowed = isAuthoritativeMNodeAdmin(session, pid);
404
          
405
      }
406
	  
407
	  if (!allowed) {
408
		  String msg = "The subject " + session.getSubject().getValue() + 
409
			  " is not allowed to call delete() on a Coordinating Node.";
410
		  logMetacat.info(msg);
411
		  throw new NotAuthorized("4960", msg);
412
		  
413
	  }
414
	  
415
	  // Don't defer to superclass implementation without a locally registered identifier
416
	  SystemMetadata systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
417
      // Check for the existing identifier
418
      try {
419
          localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
420
          super.delete(session, pid);
421
          
422
      } catch (McdbDocNotFoundException e) {
423
          // This object is not registered in the identifier table. Assume it is of formatType DATA,
424
    	  // and set the archive flag. (i.e. the *object* doesn't exist on the CN)
425
    	  
426
          try {
427
  			  lock = HazelcastService.getInstance().getLock(pid.getValue());
428
  			  lock.lock();
429
  			  logMetacat.debug("Locked identifier " + pid.getValue());
430

    
431
			  SystemMetadata sysMeta = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
432
			  if ( sysMeta != null ) {
433
				/*sysMeta.setSerialVersion(sysMeta.getSerialVersion().add(BigInteger.ONE));
434
				sysMeta.setArchived(true);
435
				sysMeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
436
				HazelcastService.getInstance().getSystemMetadataMap().put(pid, sysMeta);*/
437
			    //move the systemmetadata object from the map and delete the records in the systemmetadata database table
438
	            //since this is cn, we don't need worry about the mn solr index.
439
	            HazelcastService.getInstance().getSystemMetadataMap().remove(pid);
440
	            HazelcastService.getInstance().getIdentifiers().remove(pid);
441
	            String username = session.getSubject().getValue();//just for logging purpose
442
                //since data objects were not registered in the identifier table, we use pid as the docid
443
                EventLog.getInstance().log(request.getRemoteAddr(), request.getHeader("User-Agent"), username, pid.getValue(), Event.DELETE.xmlValue());
444
				
445
			  } else {
446
				  throw new ServiceFailure("4962", "Couldn't delete the object " + pid.getValue() +
447
					  ". Couldn't obtain the system metadata record.");
448
				  
449
			  }
450
			  
451
		  } catch (RuntimeException re) {
452
			  throw new ServiceFailure("4962", "Couldn't delete " + pid.getValue() + 
453
				  ". The error message was: " + re.getMessage());
454
			  
455
		  } finally {
456
			  lock.unlock();
457
			  logMetacat.debug("Unlocked identifier " + pid.getValue());
458

    
459
		  }
460

    
461
          // NOTE: cannot log the delete without localId
462
//          EventLog.getInstance().log(request.getRemoteAddr(), 
463
//                  request.getHeader("User-Agent"), session.getSubject().getValue(), 
464
//                  pid.getValue(), Event.DELETE.xmlValue());
465

    
466
      } catch (SQLException e) {
467
          throw new ServiceFailure("4962", "Couldn't delete " + pid.getValue() + 
468
                  ". The local id of the object with the identifier can't be identified since " + e.getMessage());
469
      }
470

    
471
      // get the node list
472
      try {
473
          cn = D1Client.getCN();
474
          nodeList = cn.listNodes().getNodeList();
475
          
476
      } catch (Exception e) { // handle BaseException and other I/O issues
477
          
478
          // swallow errors since the call is not critical
479
          logMetacat.error("Can't inform MNs of the deletion of " + pid.getValue() + 
480
              " due to communication issues with the CN: " + e.getMessage());
481
          
482
      }
483

    
484
	  // notify the replicas
485
	  if (systemMetadata.getReplicaList() != null) {
486
		  for (Replica replica: systemMetadata.getReplicaList()) {
487
			  NodeReference replicaNode = replica.getReplicaMemberNode();
488
			  try {
489
                  if (nodeList != null) {
490
                      // find the node type
491
                      for (Node node : nodeList) {
492
                          if ( node.getIdentifier().getValue().equals(replicaNode.getValue()) ) {
493
                              nodeType = node.getType();
494
                              break;
495
              
496
                          }
497
                      }
498
                  }
499
                  
500
                  // only send call MN.delete() to avoid an infinite loop with the CN
501
                  if (nodeType != null && nodeType == NodeType.MN) {
502
				      Identifier mnRetId = D1Client.getMN(replicaNode).delete(null, pid);
503
                  }
504
                  
505
			  } catch (Exception e) {
506
				  // all we can really do is log errors and carry on with life
507
				  logMetacat.error("Error deleting pid: " +  pid.getValue() + 
508
					  " from replica MN: " + replicaNode.getValue(), e);
509
			}
510
			  
511
		  }
512
	  }
513
	  
514
	  return pid;
515
      
516
  }
517
  
518
  /**
519
   * Archives an object from the Coordinating Node
520
   * 
521
   * @param session - the Session object containing the credentials for the Subject
522
   * @param pid - The object identifier to be deleted
523
   * 
524
   * @return pid - the identifier of the object used for the deletion
525
   * 
526
   * @throws InvalidToken
527
   * @throws ServiceFailure
528
   * @throws NotAuthorized
529
   * @throws NotFound
530
   * @throws NotImplemented
531
   * @throws InvalidRequest
532
   */
533
  @Override
534
  public Identifier archive(Session session, Identifier pid) 
535
      throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, NotImplemented {
536

    
537
      String localId = null; // The corresponding docid for this pid
538
	  Lock lock = null;      // The lock to be used for this identifier
539
      CNode cn = null;            // a reference to the CN to get the node list    
540
      NodeType nodeType = null;   // the nodeType of the replica node being contacted
541
      List<Node> nodeList = null; // the list of nodes in this CN environment
542
      
543

    
544
      // check for a valid session
545
      if (session == null) {
546
        	throw new InvalidToken("4973", "No session has been provided");
547
        	
548
      }
549

    
550
      // do we have a valid pid?
551
      if (pid == null || pid.getValue().trim().equals("")) {
552
          throw new ServiceFailure("4972", "The provided identifier was invalid.");
553
          
554
      }
555

    
556
	  // check that it is CN/admin
557
	  boolean allowed = isAdminAuthorized(session);
558
	  
559
	  String serviceFailureCode = "4972";
560
	  Identifier sid = getPIDForSID(pid, serviceFailureCode);
561
	  if(sid != null) {
562
	        pid = sid;
563
	  }
564
	  
565
	  //check if it is the authoritative member node
566
	  if(!allowed) {
567
	      allowed = isAuthoritativeMNodeAdmin(session, pid);
568
	  }
569
	  
570
	  if (!allowed) {
571
		  String msg = "The subject " + session.getSubject().getValue() + 
572
				  " is not allowed to call archive() on a Coordinating Node.";
573
		  logMetacat.info(msg);
574
		  throw new NotAuthorized("4970", msg);
575
	  }
576
	  
577
      // Check for the existing identifier
578
      try {
579
          localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
580
          super.archive(session, pid);
581
          
582
      } catch (McdbDocNotFoundException e) {
583
          // This object is not registered in the identifier table. Assume it is of formatType DATA,
584
    	  // and set the archive flag. (i.e. the *object* doesn't exist on the CN)
585
    	  
586
          try {
587
  			  lock = HazelcastService.getInstance().getLock(pid.getValue());
588
  			  lock.lock();
589
  			  logMetacat.debug("Locked identifier " + pid.getValue());
590

    
591
			  SystemMetadata sysMeta = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
592
			  if ( sysMeta != null ) {
593
				sysMeta.setSerialVersion(sysMeta.getSerialVersion().add(BigInteger.ONE));
594
				sysMeta.setArchived(true);
595
				sysMeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
596
				HazelcastService.getInstance().getSystemMetadataMap().put(pid, sysMeta);
597
			    // notify the replicas
598
				notifyReplicaNodes(sysMeta);
599
				  
600
			  } else {
601
				  throw new ServiceFailure("4972", "Couldn't archive the object " + pid.getValue() +
602
					  ". Couldn't obtain the system metadata record.");
603
				  
604
			  }
605
			  
606
		  } catch (RuntimeException re) {
607
			  throw new ServiceFailure("4972", "Couldn't archive " + pid.getValue() + 
608
				  ". The error message was: " + re.getMessage());
609
			  
610
		  } finally {
611
			  lock.unlock();
612
			  logMetacat.debug("Unlocked identifier " + pid.getValue());
613

    
614
		  }
615

    
616
          // NOTE: cannot log the archive without localId
617
//          EventLog.getInstance().log(request.getRemoteAddr(), 
618
//                  request.getHeader("User-Agent"), session.getSubject().getValue(), 
619
//                  pid.getValue(), Event.DELETE.xmlValue());
620

    
621
      } catch (SQLException e) {
622
          throw new ServiceFailure("4972", "Couldn't archive the object " + pid.getValue() +
623
                  ". The local id of the object with the identifier can't be identified since "+e.getMessage());
624
      }
625

    
626
	  return pid;
627
      
628
  }
629
  
630
  /**
631
   * Set the obsoletedBy attribute in System Metadata
632
   * @param session
633
   * @param pid
634
   * @param obsoletedByPid
635
   * @param serialVersion
636
   * @return
637
   * @throws NotImplemented
638
   * @throws NotFound
639
   * @throws NotAuthorized
640
   * @throws ServiceFailure
641
   * @throws InvalidRequest
642
   * @throws InvalidToken
643
   * @throws VersionMismatch
644
   */
645
  @Override
646
  public boolean setObsoletedBy(Session session, Identifier pid,
647
			Identifier obsoletedByPid, long serialVersion)
648
			throws NotImplemented, NotFound, NotAuthorized, ServiceFailure,
649
			InvalidRequest, InvalidToken, VersionMismatch {
650
      
651
      // do we have a valid pid?
652
      if (pid == null || pid.getValue().trim().equals("")) {
653
          throw new InvalidRequest("4942", "The provided identifier was invalid.");
654
          
655
      }
656
      
657
      /*String serviceFailureCode = "4941";
658
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
659
      if(sid != null) {
660
          pid = sid;
661
      }*/
662
      
663
      // do we have a valid pid?
664
      if (obsoletedByPid == null || obsoletedByPid.getValue().trim().equals("")) {
665
          throw new InvalidRequest("4942", "The provided obsoletedByPid was invalid.");
666
          
667
      }
668
      
669
      try {
670
          if(IdentifierManager.getInstance().systemMetadataSIDExists(obsoletedByPid)) {
671
              throw new InvalidRequest("4942", "The provided obsoletedByPid "+obsoletedByPid.getValue()+" is an existing SID. However, it must NOT be an SID.");
672
          }
673
      } catch (SQLException ee) {
674
          throw new ServiceFailure("4941", "Couldn't determine if the obsoletedByPid "+obsoletedByPid.getValue()+" is an SID or not. The id shouldn't be an SID.");
675
      }
676
      
677

    
678
		// The lock to be used for this identifier
679
		Lock lock = null;
680

    
681
		// get the subject
682
		Subject subject = session.getSubject();
683

    
684
		// are we allowed to do this?
685
		if (!isAuthorized(session, pid, Permission.WRITE)) {
686
			throw new NotAuthorized("4881", Permission.WRITE
687
					+ " not allowed by " + subject.getValue() + " on "
688
					+ pid.getValue());
689

    
690
		}
691

    
692

    
693
		SystemMetadata systemMetadata = null;
694
		try {
695
			lock = HazelcastService.getInstance().getLock(pid.getValue());
696
			lock.lock();
697
			logMetacat.debug("Locked identifier " + pid.getValue());
698

    
699
			try {
700
				if (HazelcastService.getInstance().getSystemMetadataMap().containsKey(pid)) {
701
					systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
702
				}
703

    
704
				// did we get it correctly?
705
				if (systemMetadata == null) {
706
					throw new NotFound("4884", "Couldn't find an object identified by " + pid.getValue());
707
				}
708

    
709
				// does the request have the most current system metadata?
710
				if (systemMetadata.getSerialVersion().longValue() != serialVersion) {
711
					String msg = "The requested system metadata version number "
712
							+ serialVersion
713
							+ " differs from the current version at "
714
							+ systemMetadata.getSerialVersion().longValue()
715
							+ ". Please get the latest copy in order to modify it.";
716
					throw new VersionMismatch("4886", msg);
717

    
718
				}
719

    
720
			} catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
721
				throw new NotFound("4884", "No record found for: " + pid.getValue());
722

    
723
			}
724

    
725
			// set the new policy
726
			systemMetadata.setObsoletedBy(obsoletedByPid);
727

    
728
			// update the metadata
729
			try {
730
				systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
731
				systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
732
				HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
733
			} catch (RuntimeException e) {
734
				throw new ServiceFailure("4882", e.getMessage());
735
			}
736

    
737
		} catch (RuntimeException e) {
738
			throw new ServiceFailure("4882", e.getMessage());
739
		} finally {
740
			lock.unlock();
741
			logMetacat.debug("Unlocked identifier " + pid.getValue());
742
		}
743

    
744
		return true;
745
	}
746
  
747
  
748
  /**
749
   * Set the replication status for an object given the object identifier
750
   * 
751
   * @param session - the Session object containing the credentials for the Subject
752
   * @param pid - the object identifier for the given object
753
   * @param status - the replication status to be applied
754
   * 
755
   * @return true or false
756
   * 
757
   * @throws NotImplemented
758
   * @throws NotAuthorized
759
   * @throws ServiceFailure
760
   * @throws InvalidRequest
761
   * @throws InvalidToken
762
   * @throws NotFound
763
   * 
764
   */
765
  @Override
766
  public boolean setReplicationStatus(Session session, Identifier pid,
767
      NodeReference targetNode, ReplicationStatus status, BaseException failure) 
768
      throws ServiceFailure, NotImplemented, InvalidToken, NotAuthorized, 
769
      InvalidRequest, NotFound {
770
	  
771
	  // cannot be called by public
772
	  if (session == null) {
773
		  throw new NotAuthorized("4720", "Session cannot be null");
774
	  } 
775
	  
776
	  /*else {
777
	      if(!isCNAdmin(session)) {
778
              throw new NotAuthorized("4720", "The client -"+ session.getSubject().getValue()+ "is not a CN and is not authorized for setting the replication status of the object "+pid.getValue());
779
        }
780
	  }*/
781
	  
782
	// do we have a valid pid?
783
      if (pid == null || pid.getValue().trim().equals("")) {
784
          throw new InvalidRequest("4730", "The provided identifier was invalid.");
785
          
786
      }
787
      
788
      /*String serviceFailureCode = "4700";
789
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
790
      if(sid != null) {
791
          pid = sid;
792
      }*/
793
      
794
      // The lock to be used for this identifier
795
      Lock lock = null;
796
      
797
      boolean allowed = false;
798
      int replicaEntryIndex = -1;
799
      List<Replica> replicas = null;
800
      // get the subject
801
      Subject subject = session.getSubject();
802
      logMetacat.debug("ReplicationStatus for identifier " + pid.getValue() +
803
          " is " + status.toString());
804
      
805
      SystemMetadata systemMetadata = null;
806

    
807
      try {
808
          lock = HazelcastService.getInstance().getLock(pid.getValue());
809
          lock.lock();
810
          logMetacat.debug("Locked identifier " + pid.getValue());
811

    
812
          try {      
813
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
814

    
815
              // did we get it correctly?
816
              if ( systemMetadata == null ) {
817
                  logMetacat.debug("systemMetadata is null for " + pid.getValue());
818
                  throw new NotFound("4740", "Couldn't find an object identified by " + pid.getValue());
819
                  
820
              }
821
              replicas = systemMetadata.getReplicaList();
822
              int count = 0;
823
              
824
              // was there a failure? log it
825
              if ( failure != null && status.equals(ReplicationStatus.FAILED) ) {
826
                 String msg = "The replication request of the object identified by " + 
827
                     pid.getValue() + " failed.  The error message was " +
828
                     failure.getMessage() + ".";
829
                 logMetacat.error(msg);
830
              }
831
              
832
              if (replicas.size() > 0 && replicas != null) {
833
                  // find the target replica index in the replica list
834
                  for (Replica replica : replicas) {
835
                      String replicaNodeStr = replica.getReplicaMemberNode().getValue();
836
                      String targetNodeStr = targetNode.getValue();
837
                      logMetacat.debug("Comparing " + replicaNodeStr + " to " + targetNodeStr);
838
                  
839
                      if (replicaNodeStr.equals(targetNodeStr)) {
840
                          replicaEntryIndex = count;
841
                          logMetacat.debug("replica entry index is: "
842
                                  + replicaEntryIndex);
843
                          break;
844
                      }
845
                      count++;
846
                  
847
                  }
848
              }
849
              // are we allowed to do this? only CNs and target MNs are allowed
850
              CNode cn = D1Client.getCN();
851
              List<Node> nodes = cn.listNodes().getNodeList();
852
              
853
              // find the node in the node list
854
              for ( Node node : nodes ) {
855
                  
856
                  NodeReference nodeReference = node.getIdentifier();
857
                  logMetacat.debug("In setReplicationStatus(), Node reference is: " + 
858
                      nodeReference.getValue());
859
                  
860
                  // allow target MN certs
861
                  if ( targetNode.getValue().equals(nodeReference.getValue() ) &&
862
                      node.getType().equals(NodeType.MN)) {
863
                      List<Subject> nodeSubjects = node.getSubjectList();
864
                      
865
                      // check if the session subject is in the node subject list
866
                      for (Subject nodeSubject : nodeSubjects) {
867
                          logMetacat.debug("In setReplicationStatus(), comparing subjects: " +
868
                                  nodeSubject.getValue() + " and " + subject.getValue());
869
                          if ( nodeSubject.equals(subject) ) { // subject of session == target node subject
870
                              
871
                              // lastly limit to COMPLETED, INVALIDATED,
872
                              // and FAILED status updates from MNs only
873
                              if ( status.equals(ReplicationStatus.COMPLETED) ||
874
                                   status.equals(ReplicationStatus.INVALIDATED) ||
875
                                   status.equals(ReplicationStatus.FAILED)) {
876
                                  allowed = true;
877
                                  break;
878
                                  
879
                              }                              
880
                          }
881
                      }                 
882
                  }
883
              }
884

    
885
              if ( !allowed ) {
886
                  //check for CN admin access
887
                  //allowed = isAuthorized(session, pid, Permission.WRITE);
888
                  allowed = isCNAdmin(session);
889
                  
890
              }              
891
              
892
              if ( !allowed ) {
893
                  String msg = "The subject identified by "
894
                          + subject.getValue()
895
                          + " is not a CN or MN, and does not have permission to set the replication status for "
896
                          + "the replica identified by "
897
                          + targetNode.getValue() + ".";
898
                  logMetacat.info(msg);
899
                  throw new NotAuthorized("4720", msg);
900
                  
901
              }
902

    
903
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
904
            throw new NotFound("4740", "No record found for: " + pid.getValue() +
905
                " : " + e.getMessage());
906
            
907
          }
908
          
909
          Replica targetReplica = new Replica();
910
          // set the status for the replica
911
          if ( replicaEntryIndex != -1 ) {
912
              targetReplica = replicas.get(replicaEntryIndex);
913
              
914
              // don't allow status to change from COMPLETED to anything other
915
              // than INVALIDATED: prevents overwrites from race conditions
916
              if ( targetReplica.getReplicationStatus().equals(ReplicationStatus.COMPLETED) &&
917
            	   !status.equals(ReplicationStatus.INVALIDATED)) {
918
            	  throw new InvalidRequest("4730", "Status state change from " +
919
            			  targetReplica.getReplicationStatus() + " to " +
920
            			  status.toString() + "is prohibited for identifier " +
921
            			  pid.getValue() + " and target node " + 
922
            			  targetReplica.getReplicaMemberNode().getValue());
923
              }
924
              
925
              if(targetReplica.getReplicationStatus().equals(status)) {
926
                  //There is no change in the status, we do nothing.
927
                  return true;
928
              }
929
              
930
              targetReplica.setReplicationStatus(status);
931
              
932
              logMetacat.debug("Set the replication status for " + 
933
                  targetReplica.getReplicaMemberNode().getValue() + " to " +
934
                  targetReplica.getReplicationStatus() + " for identifier " +
935
                  pid.getValue());
936
              
937
          } else {
938
              // this is a new entry, create it
939
              targetReplica.setReplicaMemberNode(targetNode);
940
              targetReplica.setReplicationStatus(status);
941
              targetReplica.setReplicaVerified(Calendar.getInstance().getTime());
942
              replicas.add(targetReplica);
943
              
944
          }
945
          
946
          systemMetadata.setReplicaList(replicas);
947
                
948
          // update the metadata
949
          try {
950
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
951
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
952
              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
953

    
954
              if ( !status.equals(ReplicationStatus.QUEUED) && 
955
            	   !status.equals(ReplicationStatus.REQUESTED)) {
956
                  
957
                logMetacat.trace("METRICS:\tREPLICATION:\tEND REQUEST:\tPID:\t" + pid.getValue() + 
958
                          "\tNODE:\t" + targetNode.getValue() + 
959
                          "\tSIZE:\t" + systemMetadata.getSize().intValue());
960
                
961
                logMetacat.trace("METRICS:\tREPLICATION:\t" + status.toString().toUpperCase() +
962
                          "\tPID:\t"  + pid.getValue() + 
963
                          "\tNODE:\t" + targetNode.getValue() + 
964
                          "\tSIZE:\t" + systemMetadata.getSize().intValue());
965
              }
966

    
967
              if ( status.equals(ReplicationStatus.FAILED) && failure != null ) {
968
                  logMetacat.warn("Replication failed for identifier " + pid.getValue() +
969
                      " on target node " + targetNode + ". The exception was: " +
970
                      failure.getMessage());
971
              }
972
              
973
			  // update the replica nodes about the completed replica when complete
974
              if (status.equals(ReplicationStatus.COMPLETED)) {
975
				notifyReplicaNodes(systemMetadata);
976
			}
977
          
978
          } catch (RuntimeException e) {
979
              throw new ServiceFailure("4700", e.getMessage());
980
          
981
          }
982
          
983
    } catch (RuntimeException e) {
984
        String msg = "There was a RuntimeException getting the lock for " +
985
            pid.getValue();
986
        logMetacat.info(msg);
987
        
988
    } finally {
989
        lock.unlock();
990
        logMetacat.debug("Unlocked identifier " + pid.getValue());
991
        
992
    }
993
      
994
      return true;
995
  }
996
  
997
/**
998
   * Return the checksum of the object given the identifier 
999
   * 
1000
   * @param session - the Session object containing the credentials for the Subject
1001
   * @param pid - the object identifier for the given object
1002
   * 
1003
   * @return checksum - the checksum of the object
1004
   * 
1005
   * @throws InvalidToken
1006
   * @throws ServiceFailure
1007
   * @throws NotAuthorized
1008
   * @throws NotFound
1009
   * @throws NotImplemented
1010
   */
1011
  @Override
1012
  public Checksum getChecksum(Session session, Identifier pid)
1013
    throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, 
1014
    NotImplemented {
1015
    
1016
	boolean isAuthorized = false;
1017
	try {
1018
		isAuthorized = isAuthorized(session, pid, Permission.READ);
1019
	} catch (InvalidRequest e) {
1020
		throw new ServiceFailure("1410", e.getDescription());
1021
	}  
1022
    if (!isAuthorized) {
1023
        throw new NotAuthorized("1400", Permission.READ + " not allowed on " + pid.getValue());  
1024
    }
1025
    
1026
    SystemMetadata systemMetadata = null;
1027
    Checksum checksum = null;
1028
    
1029
    try {
1030
        systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);        
1031

    
1032
        if (systemMetadata == null ) {
1033
            String error ="";
1034
            String localId = null;
1035
            try {
1036
                localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
1037
              
1038
             } catch (Exception e) {
1039
                logMetacat.warn("Couldn't find the local id for the pid "+pid.getValue());
1040
            }
1041
            
1042
            if(localId != null && EventLog.getInstance().isDeleted(localId)) {
1043
                error = DELETEDMESSAGE;
1044
            } else if (localId == null && EventLog.getInstance().isDeleted(pid.getValue())) {
1045
                error = DELETEDMESSAGE;
1046
            }
1047
            throw new NotFound("1420", "Couldn't find an object identified by " + pid.getValue()+". "+error);
1048
        }
1049
        checksum = systemMetadata.getChecksum();
1050
        
1051
    } catch (RuntimeException e) {
1052
        throw new ServiceFailure("1410", "An error occurred getting the checksum for " + 
1053
            pid.getValue() + ". The error message was: " + e.getMessage());
1054
      
1055
    }
1056
    
1057
    return checksum;
1058
  }
1059

    
1060
  /**
1061
   * Resolve the location of a given object
1062
   * 
1063
   * @param session - the Session object containing the credentials for the Subject
1064
   * @param pid - the object identifier for the given object
1065
   * 
1066
   * @return objectLocationList - the list of nodes known to contain the object
1067
   * 
1068
   * @throws InvalidToken
1069
   * @throws ServiceFailure
1070
   * @throws NotAuthorized
1071
   * @throws NotFound
1072
   * @throws NotImplemented
1073
   */
1074
  @Override
1075
  public ObjectLocationList resolve(Session session, Identifier pid)
1076
    throws InvalidToken, ServiceFailure, NotAuthorized,
1077
    NotFound, NotImplemented {
1078

    
1079
    throw new NotImplemented("4131", "resolve not implemented");
1080

    
1081
  }
1082

    
1083
  /**
1084
   * Metacat does not implement this method at the CN level
1085
   */
1086
  @Override
1087
  public ObjectList search(Session session, String queryType, String query)
1088
    throws InvalidToken, ServiceFailure, NotAuthorized, InvalidRequest,
1089
    NotImplemented {
1090

    
1091
		  throw new NotImplemented("4281", "Metacat does not implement CN.search");
1092
	  
1093
//    ObjectList objectList = null;
1094
//    try {
1095
//        objectList = 
1096
//          IdentifierManager.getInstance().querySystemMetadata(
1097
//              null, //startTime, 
1098
//              null, //endTime,
1099
//              null, //objectFormat, 
1100
//              false, //replicaStatus, 
1101
//              0, //start, 
1102
//              1000 //count
1103
//              );
1104
//        
1105
//    } catch (Exception e) {
1106
//      throw new ServiceFailure("4310", "Error querying system metadata: " + e.getMessage());
1107
//    }
1108
//
1109
//      return objectList;
1110
		  
1111
  }
1112
  
1113
  /**
1114
   * Returns the object format registered in the DataONE Object Format 
1115
   * Vocabulary for the given format identifier
1116
   * 
1117
   * @param fmtid - the identifier of the format requested
1118
   * 
1119
   * @return objectFormat - the object format requested
1120
   * 
1121
   * @throws ServiceFailure
1122
   * @throws NotFound
1123
   * @throws InsufficientResources
1124
   * @throws NotImplemented
1125
   */
1126
  @Override
1127
  public ObjectFormat getFormat(ObjectFormatIdentifier fmtid)
1128
    throws ServiceFailure, NotFound, NotImplemented {
1129
     
1130
      return ObjectFormatService.getInstance().getFormat(fmtid);
1131
      
1132
  }
1133

    
1134
    @Override
1135
    public ObjectFormatIdentifier addFormat(Session session, ObjectFormatIdentifier formatId, ObjectFormat format)
1136
            throws ServiceFailure, NotFound, NotImplemented, NotAuthorized, InvalidToken {
1137

    
1138
        logMetacat.debug("CNodeService.addFormat() called.\n" + 
1139
                "format ID: " + format.getFormatId() + "\n" + 
1140
                "format name: " + format.getFormatName() + "\n" + 
1141
                "format type: " + format.getFormatType() );
1142
        
1143
        // FIXME remove:
1144
        if (true)
1145
            throw new NotImplemented("0000", "Implementation underway... Will need testing too...");
1146
        
1147
        if (!isAdminAuthorized(session))
1148
            throw new NotAuthorized("0000", "Not authorized to call addFormat()");
1149

    
1150
        String separator = ".";
1151
        try {
1152
            separator = PropertyService.getProperty("document.accNumSeparator");
1153
        } catch (PropertyNotFoundException e) {
1154
            logMetacat.warn("Unable to find property \"document.accNumSeparator\"\n" + e.getMessage());
1155
        }
1156

    
1157
        // find pids of last and next ObjectFormatList
1158
        String OBJECT_FORMAT_DOCID = ObjectFormatService.OBJECT_FORMAT_DOCID;
1159
        int lastRev = -1;
1160
        try {
1161
            lastRev = DBUtil.getLatestRevisionInDocumentTable(OBJECT_FORMAT_DOCID);
1162
        } catch (SQLException e) {
1163
            throw new ServiceFailure("0000", "Unable to locate last revision of the object format list.\n" + e.getMessage());
1164
        }
1165
        int nextRev = lastRev + 1;
1166
        String lastDocID = OBJECT_FORMAT_DOCID + separator + lastRev;
1167
        String nextDocID = OBJECT_FORMAT_DOCID + separator + nextRev;
1168
        
1169
        Identifier lastPid = new Identifier();
1170
        lastPid.setValue(lastDocID);
1171
        Identifier nextPid = new Identifier();
1172
        nextPid.setValue(nextDocID);
1173
        
1174
        logMetacat.debug("Last ObjectFormatList document ID: " + lastDocID + "\n" 
1175
                + "Next ObjectFormatList document ID: " + nextDocID);
1176
        
1177
        // add new format to the current ObjectFormatList
1178
        ObjectFormatList objectFormatList = ObjectFormatService.getInstance().listFormats();
1179
        List<ObjectFormat> innerList = objectFormatList.getObjectFormatList();
1180
        innerList.add(format);
1181

    
1182
        // get existing (last) sysmeta and make a copy
1183
        SystemMetadata lastSysmeta = getSystemMetadata(session, lastPid);
1184
        SystemMetadata nextSysmeta = new SystemMetadata();
1185
        try {
1186
            BeanUtils.copyProperties(nextSysmeta, lastSysmeta);
1187
        } catch (IllegalAccessException | InvocationTargetException e) {
1188
            throw new ServiceFailure("0000", "Unable to create system metadata for updated object format list.\n" + e.getMessage());
1189
        }
1190
        
1191
        // create the new object format list, and update the old sysmeta with obsoletedBy
1192
        createNewObjectFormatList(session, lastPid, nextPid, objectFormatList, nextSysmeta);
1193
        updateOldObjectFormatList(session, lastPid, nextPid, lastSysmeta);
1194
        
1195
        // TODO add to ObjectFormatService local cache?
1196
        
1197
        return formatId;
1198
    }
1199

    
1200
    /**
1201
     * Creates the object for the next / updated version of the ObjectFormatList.
1202
     * 
1203
     * @param session
1204
     * @param lastPid
1205
     * @param nextPid
1206
     * @param objectFormatList
1207
     * @param lastSysmeta
1208
     */
1209
    private void createNewObjectFormatList(Session session, Identifier lastPid, Identifier nextPid,
1210
            ObjectFormatList objectFormatList, SystemMetadata lastSysmeta) 
1211
                    throws InvalidToken, ServiceFailure, NotAuthorized, NotImplemented {
1212
        
1213
        PipedInputStream is = new PipedInputStream();
1214
        PipedOutputStream os = null;
1215
        
1216
        try {
1217
            os = new PipedOutputStream(is);
1218
            TypeMarshaller.marshalTypeToOutputStream(objectFormatList, os);
1219
        } catch (JiBXException | IOException e) {
1220
            throw new ServiceFailure("0000", "Unable to marshal object format list.\n" + e.getMessage());
1221
        } finally {
1222
            try {
1223
                os.flush();
1224
                os.close();
1225
            } catch (IOException ioe) {
1226
                throw new ServiceFailure("0000", "Unable to marshal object format list.\n" + ioe.getMessage());
1227
            }
1228
        }
1229
        
1230
        BigInteger docSize = lastSysmeta.getSize();
1231
        try {
1232
            docSize = BigInteger.valueOf(is.available());
1233
        } catch (IOException e) {
1234
            logMetacat.warn("Unable to set an accurate size for the new object format list.", e);
1235
        }
1236
        
1237
        lastSysmeta.setIdentifier(nextPid);
1238
        lastSysmeta.setObsoletes(lastPid);
1239
        lastSysmeta.setSize(docSize); 
1240
        lastSysmeta.setSubmitter(session.getSubject());
1241
        lastSysmeta.setDateUploaded(new Date());
1242
        
1243
        // create new object format list
1244
        try {
1245
            create(session, nextPid, is, lastSysmeta);
1246
        } catch (IdentifierNotUnique | UnsupportedType | InsufficientResources
1247
                | InvalidSystemMetadata | InvalidRequest e) {
1248
            throw new ServiceFailure("0000", "Unable to create() new object format list" + e.getMessage());
1249
        }
1250
    }
1251
  
1252
    /**
1253
     * Updates the SystemMetadata for the old version of the ObjectFormatList
1254
     * by setting the obsoletedBy value to the pid of the new version of the 
1255
     * ObjectFormatList.
1256
     * 
1257
     * @param session
1258
     * @param lastPid
1259
     * @param obsoletedByPid
1260
     * @param lastSysmeta
1261
     * @throws ServiceFailure
1262
     */
1263
    private void updateOldObjectFormatList(Session session, Identifier lastPid, Identifier obsoletedByPid, SystemMetadata lastSysmeta) 
1264
            throws ServiceFailure {
1265
        
1266
        lastSysmeta.setObsoletedBy(obsoletedByPid);
1267
        
1268
        try {
1269
            this.updateSystemMetadata(session, lastPid, lastSysmeta);
1270
        } catch (NotImplemented | NotAuthorized | ServiceFailure | InvalidRequest
1271
                | InvalidSystemMetadata | InvalidToken e) {
1272
            throw new ServiceFailure("0000", "Unable to update metadata of old object format list.\n" + e.getMessage());
1273
        }
1274
    }
1275
  /**
1276
   * Returns a list of all object formats registered in the DataONE Object 
1277
   * Format Vocabulary
1278
    * 
1279
   * @return objectFormatList - The list of object formats registered in 
1280
   *                            the DataONE Object Format Vocabulary
1281
   * 
1282
   * @throws ServiceFailure
1283
   * @throws NotImplemented
1284
   * @throws InsufficientResources
1285
   */
1286
  @Override
1287
  public ObjectFormatList listFormats() 
1288
    throws ServiceFailure, NotImplemented {
1289

    
1290
    return ObjectFormatService.getInstance().listFormats();
1291
  }
1292

    
1293
  /**
1294
   * Returns a list of nodes that have been registered with the DataONE infrastructure
1295
    * 
1296
   * @return nodeList - List of nodes from the registry
1297
   * 
1298
   * @throws ServiceFailure
1299
   * @throws NotImplemented
1300
   */
1301
  @Override
1302
  public NodeList listNodes() 
1303
    throws NotImplemented, ServiceFailure {
1304

    
1305
    throw new NotImplemented("4800", "listNodes not implemented");
1306
  }
1307

    
1308
  /**
1309
   * Provides a mechanism for adding system metadata independently of its 
1310
   * associated object, such as when adding system metadata for data objects.
1311
    * 
1312
   * @param session - the Session object containing the credentials for the Subject
1313
   * @param pid - The identifier of the object to register the system metadata against
1314
   * @param sysmeta - The system metadata to be registered
1315
   * 
1316
   * @return true if the registration succeeds
1317
   * 
1318
   * @throws NotImplemented
1319
   * @throws NotAuthorized
1320
   * @throws ServiceFailure
1321
   * @throws InvalidRequest
1322
   * @throws InvalidSystemMetadata
1323
   */
1324
  @Override
1325
  public Identifier registerSystemMetadata(Session session, Identifier pid,
1326
      SystemMetadata sysmeta) 
1327
      throws NotImplemented, NotAuthorized, ServiceFailure, InvalidRequest, 
1328
      InvalidSystemMetadata {
1329

    
1330
      // The lock to be used for this identifier
1331
      Lock lock = null;
1332

    
1333
      // TODO: control who can call this?
1334
      if (session == null) {
1335
          //TODO: many of the thrown exceptions do not use the correct error codes
1336
          //check these against the docs and correct them
1337
          throw new NotAuthorized("4861", "No Session - could not authorize for registration." +
1338
                  "  If you are not logged in, please do so and retry the request.");
1339
      } else {
1340
          //only CN is allwoed
1341
          if(!isCNAdmin(session)) {
1342
                throw new NotAuthorized("4861", "The client -"+ session.getSubject().getValue()+ "is not a CN and is not authorized for registering the system metadata of the object "+pid.getValue());
1343
          }
1344
      }
1345
      // the identifier can't be an SID
1346
      try {
1347
          if(IdentifierManager.getInstance().systemMetadataSIDExists(pid)) {
1348
              throw new InvalidRequest("4863", "The provided identifier "+pid.getValue()+" is a series id which is not allowed.");
1349
          }
1350
      } catch (SQLException sqle) {
1351
          throw new ServiceFailure("4862", "Couldn't determine if the pid "+pid.getValue()+" is a series id since "+sqle.getMessage());
1352
      }
1353
      
1354
      // verify that guid == SystemMetadata.getIdentifier()
1355
      logMetacat.debug("Comparing guid|sysmeta_guid: " + pid.getValue() + 
1356
          "|" + sysmeta.getIdentifier().getValue());
1357
      if (!pid.getValue().equals(sysmeta.getIdentifier().getValue())) {
1358
          throw new InvalidRequest("4863", 
1359
              "The identifier in method call (" + pid.getValue() + 
1360
              ") does not match identifier in system metadata (" +
1361
              sysmeta.getIdentifier().getValue() + ").");
1362
      }
1363
      
1364
      //check if the sid is legitimate in the system metadata
1365
      //checkSidInModifyingSystemMetadata(sysmeta, "4864", "4862");
1366
      Identifier sid = sysmeta.getSeriesId();
1367
      if(sid != null) {
1368
          if (!isValidIdentifier(sid)) {
1369
              throw new InvalidRequest("4863", "The series id in the system metadata is invalid in the request.");
1370
          }
1371
      }
1372

    
1373
      try {
1374
          lock = HazelcastService.getInstance().getLock(sysmeta.getIdentifier().getValue());
1375
          lock.lock();
1376
          logMetacat.debug("Locked identifier " + pid.getValue());
1377
          logMetacat.debug("Checking if identifier exists...");
1378
          // Check that the identifier does not already exist
1379
          if (HazelcastService.getInstance().getSystemMetadataMap().containsKey(pid)) {
1380
              throw new InvalidRequest("4863", 
1381
                  "The identifier is already in use by an existing object.");
1382
          
1383
          }
1384
          
1385
          // insert the system metadata into the object store
1386
          logMetacat.debug("Starting to insert SystemMetadata...");
1387
          try {
1388
              sysmeta.setSerialVersion(BigInteger.ONE);
1389
              sysmeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
1390
              HazelcastService.getInstance().getSystemMetadataMap().put(sysmeta.getIdentifier(), sysmeta);
1391
              
1392
          } catch (RuntimeException e) {
1393
            logMetacat.error("Problem registering system metadata: " + pid.getValue(), e);
1394
              throw new ServiceFailure("4862", "Error inserting system metadata: " + 
1395
                  e.getClass() + ": " + e.getMessage());
1396
              
1397
          }
1398
          
1399
      } catch (RuntimeException e) {
1400
          throw new ServiceFailure("4862", "Error inserting system metadata: " + 
1401
                  e.getClass() + ": " + e.getMessage());
1402
          
1403
      }  finally {
1404
          lock.unlock();
1405
          logMetacat.debug("Unlocked identifier " + pid.getValue());
1406
          
1407
      }
1408

    
1409
      
1410
      logMetacat.debug("Returning from registerSystemMetadata");
1411
      
1412
      try {
1413
    	  String localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
1414
    	  EventLog.getInstance().log(request.getRemoteAddr(), 
1415
    	          request.getHeader("User-Agent"), session.getSubject().getValue(), 
1416
    	          localId, "registerSystemMetadata");
1417
      } catch (McdbDocNotFoundException e) {
1418
    	  // do nothing, no localId to log with
1419
    	  logMetacat.warn("Could not log 'registerSystemMetadata' event because no localId was found for pid: " + pid.getValue());
1420
      } catch (SQLException ee) {
1421
          // do nothing, no localId to log with
1422
          logMetacat.warn("Could not log 'registerSystemMetadata' event because the localId couldn't be identified for pid: " + pid.getValue());
1423
      }
1424
      
1425
      
1426
      return pid;
1427
  }
1428
  
1429
  /**
1430
   * Given an optional scope and format, reserves and returns an identifier 
1431
   * within that scope and format that is unique and will not be 
1432
   * used by any other sessions. 
1433
    * 
1434
   * @param session - the Session object containing the credentials for the Subject
1435
   * @param pid - The identifier of the object to register the system metadata against
1436
   * @param scope - An optional string to be used to qualify the scope of 
1437
   *                the identifier namespace, which is applied differently 
1438
   *                depending on the format requested. If scope is not 
1439
   *                supplied, a default scope will be used.
1440
   * @param format - The optional name of the identifier format to be used, 
1441
   *                  drawn from a DataONE-specific vocabulary of identifier 
1442
   *                 format names, including several common syntaxes such 
1443
   *                 as DOI, LSID, UUID, and LSRN, among others. If the 
1444
   *                 format is not supplied by the caller, the CN service 
1445
   *                 will use a default identifier format, which may change 
1446
   *                 over time.
1447
   * 
1448
   * @return true if the registration succeeds
1449
   * 
1450
   * @throws InvalidToken
1451
   * @throws ServiceFailure
1452
   * @throws NotAuthorized
1453
   * @throws IdentifierNotUnique
1454
   * @throws NotImplemented
1455
   */
1456
  @Override
1457
  public Identifier reserveIdentifier(Session session, Identifier pid)
1458
  throws InvalidToken, ServiceFailure,
1459
        NotAuthorized, IdentifierNotUnique, NotImplemented, InvalidRequest {
1460

    
1461
    throw new NotImplemented("4191", "reserveIdentifier not implemented on this node");
1462
  }
1463
  
1464
  @Override
1465
  public Identifier generateIdentifier(Session session, String scheme, String fragment)
1466
  throws InvalidToken, ServiceFailure,
1467
        NotAuthorized, NotImplemented, InvalidRequest {
1468
    throw new NotImplemented("4191", "generateIdentifier not implemented on this node");
1469
  }
1470
  
1471
  /**
1472
    * Checks whether the pid is reserved by the subject in the session param
1473
    * If the reservation is held on the pid by the subject, we return true.
1474
    * 
1475
   * @param session - the Session object containing the Subject
1476
   * @param pid - The identifier to check
1477
   * 
1478
   * @return true if the reservation exists for the subject/pid
1479
   * 
1480
   * @throws InvalidToken
1481
   * @throws ServiceFailure
1482
   * @throws NotFound - when the pid is not found (in use or in reservation)
1483
   * @throws NotAuthorized - when the subject does not hold a reservation on the pid
1484
   * @throws IdentifierNotUnique - when the pid is in use
1485
   * @throws NotImplemented
1486
   */
1487

    
1488
  @Override
1489
  public boolean hasReservation(Session session, Subject subject, Identifier pid) 
1490
      throws InvalidToken, ServiceFailure, NotFound, NotAuthorized, IdentifierNotUnique, 
1491
      NotImplemented, InvalidRequest {
1492
  
1493
      throw new NotImplemented("4191", "hasReservation not implemented on this node");
1494
  }
1495

    
1496
  /**
1497
   * Changes ownership (RightsHolder) of the specified object to the 
1498
   * subject specified by userId
1499
    * 
1500
   * @param session - the Session object containing the credentials for the Subject
1501
   * @param pid - Identifier of the object to be modified
1502
   * @param userId - The subject that will be taking ownership of the specified object.
1503
   *
1504
   * @return pid - the identifier of the modified object
1505
   * 
1506
   * @throws ServiceFailure
1507
   * @throws InvalidToken
1508
   * @throws NotFound
1509
   * @throws NotAuthorized
1510
   * @throws NotImplemented
1511
   * @throws InvalidRequest
1512
   */  
1513
  @Override
1514
  public Identifier setRightsHolder(Session session, Identifier pid, Subject userId,
1515
      long serialVersion)
1516
      throws InvalidToken, ServiceFailure, NotFound, NotAuthorized,
1517
      NotImplemented, InvalidRequest, VersionMismatch {
1518
      
1519
      // The lock to be used for this identifier
1520
      Lock lock = null;
1521

    
1522
      // get the subject
1523
      Subject subject = session.getSubject();
1524
      
1525
      String serviceFailureCode = "4490";
1526
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
1527
      if(sid != null) {
1528
          pid = sid;
1529
      }
1530
      
1531
      // are we allowed to do this?
1532
      if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
1533
          throw new NotAuthorized("4440", "not allowed by "
1534
                  + subject.getValue() + " on " + pid.getValue());
1535
          
1536
      }
1537
      
1538
      SystemMetadata systemMetadata = null;
1539
      try {
1540
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1541
          lock.lock();
1542
          logMetacat.debug("Locked identifier " + pid.getValue());
1543

    
1544
          try {
1545
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1546
              
1547
              // does the request have the most current system metadata?
1548
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
1549
                 String msg = "The requested system metadata version number " + 
1550
                     serialVersion + " differs from the current version at " +
1551
                     systemMetadata.getSerialVersion().longValue() +
1552
                     ". Please get the latest copy in order to modify it.";
1553
                 throw new VersionMismatch("4443", msg);
1554
              }
1555
              
1556
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
1557
              throw new NotFound("4460", "No record found for: " + pid.getValue());
1558
              
1559
          }
1560
              
1561
          // set the new rights holder
1562
          systemMetadata.setRightsHolder(userId);
1563
          
1564
          // update the metadata
1565
          try {
1566
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
1567
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
1568
              HazelcastService.getInstance().getSystemMetadataMap().put(pid, systemMetadata);
1569
              notifyReplicaNodes(systemMetadata);
1570
              
1571
          } catch (RuntimeException e) {
1572
              throw new ServiceFailure("4490", e.getMessage());
1573
          
1574
          }
1575
          
1576
      } catch (RuntimeException e) {
1577
          throw new ServiceFailure("4490", e.getMessage());
1578
          
1579
      } finally {
1580
          lock.unlock();
1581
          logMetacat.debug("Unlocked identifier " + pid.getValue());
1582
      
1583
      }
1584
      
1585
      return pid;
1586
  }
1587

    
1588
  /**
1589
   * Verify that a replication task is authorized by comparing the target node's
1590
   * Subject (from the X.509 certificate-derived Session) with the list of 
1591
   * subjects in the known, pending replication tasks map.
1592
   * 
1593
   * @param originatingNodeSession - Session information that contains the 
1594
   *                                 identity of the calling user
1595
   * @param targetNodeSubject - Subject identifying the target node
1596
   * @param pid - the identifier of the object to be replicated
1597
   * @param replicatePermission - the execute permission to be granted
1598
   * 
1599
   * @throws ServiceFailure
1600
   * @throws NotImplemented
1601
   * @throws InvalidToken
1602
   * @throws NotAuthorized
1603
   * @throws InvalidRequest
1604
   * @throws NotFound
1605
   */
1606
  @Override
1607
  public boolean isNodeAuthorized(Session originatingNodeSession, 
1608
    Subject targetNodeSubject, Identifier pid) 
1609
    throws NotImplemented, NotAuthorized, InvalidToken, ServiceFailure, 
1610
    NotFound, InvalidRequest {
1611
    
1612
    boolean isAllowed = false;
1613
    SystemMetadata sysmeta = null;
1614
    NodeReference targetNode = null;
1615
    
1616
    try {
1617
      // get the target node reference from the nodes list
1618
      CNode cn = D1Client.getCN();
1619
      List<Node> nodes = cn.listNodes().getNodeList();
1620
      
1621
      if ( nodes != null ) {
1622
        for (Node node : nodes) {
1623
            
1624
        	if (node.getSubjectList() != null) {
1625
        		
1626
	            for (Subject nodeSubject : node.getSubjectList()) {
1627
	            	
1628
	                if ( nodeSubject.equals(targetNodeSubject) ) {
1629
	                    targetNode = node.getIdentifier();
1630
	                    logMetacat.debug("targetNode is : " + targetNode.getValue());
1631
	                    break;
1632
	                }
1633
	            }
1634
        	}
1635
            
1636
            if ( targetNode != null) { break; }
1637
        }
1638
        
1639
      } else {
1640
          String msg = "Couldn't get the node list from the CN";
1641
          logMetacat.debug(msg);
1642
          throw new ServiceFailure("4872", msg);
1643
          
1644
      }
1645
      
1646
      // can't find a node listed with the given subject
1647
      if ( targetNode == null ) {
1648
          String msg = "There is no Member Node registered with a node subject " +
1649
              "matching " + targetNodeSubject.getValue();
1650
          logMetacat.info(msg);
1651
          throw new NotAuthorized("4871", msg);
1652
          
1653
      }
1654
      
1655
      logMetacat.debug("Getting system metadata for identifier " + pid.getValue());
1656
      
1657
      sysmeta = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1658

    
1659
      if ( sysmeta != null ) {
1660
          
1661
          List<Replica> replicaList = sysmeta.getReplicaList();
1662
          
1663
          if ( replicaList != null ) {
1664
              
1665
              // find the replica with the status set to 'requested'
1666
              for (Replica replica : replicaList) {
1667
                  ReplicationStatus status = replica.getReplicationStatus();
1668
                  NodeReference listedNode = replica.getReplicaMemberNode();
1669
                  if ( listedNode != null && targetNode != null ) {
1670
                      logMetacat.debug("Comparing " + listedNode.getValue()
1671
                              + " to " + targetNode.getValue());
1672
                      
1673
                      if (listedNode.getValue().equals(targetNode.getValue())
1674
                              && status.equals(ReplicationStatus.REQUESTED)) {
1675
                          isAllowed = true;
1676
                          break;
1677

    
1678
                      }
1679
                  }
1680
              }
1681
          }
1682
          logMetacat.debug("The " + targetNode.getValue() + " is allowed " +
1683
              "to replicate: " + isAllowed + " for " + pid.getValue());
1684

    
1685
          
1686
      } else {
1687
          logMetacat.debug("System metadata for identifier " + pid.getValue() +
1688
          " is null.");
1689
          String error ="";
1690
          String localId = null;
1691
          try {
1692
              localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
1693
            
1694
           } catch (Exception e) {
1695
              logMetacat.warn("Couldn't find the local id for the pid "+pid.getValue());
1696
          }
1697
          
1698
          if(localId != null && EventLog.getInstance().isDeleted(localId)) {
1699
              error = DELETEDMESSAGE;
1700
          } else if (localId == null && EventLog.getInstance().isDeleted(pid.getValue())) {
1701
              error = DELETEDMESSAGE;
1702
          }
1703
          throw new NotFound("4874", "Couldn't find an object identified by " + pid.getValue()+". "+error);
1704
          
1705
      }
1706

    
1707
    } catch (RuntimeException e) {
1708
    	  ServiceFailure sf = new ServiceFailure("4872", 
1709
                "Runtime Exception: Couldn't determine if node is allowed: " + 
1710
                e.getMessage());
1711
    	  sf.initCause(e);
1712
        throw sf;
1713
        
1714
    }
1715
      
1716
    return isAllowed;
1717
    
1718
  }
1719

    
1720
  /**
1721
   * Adds a new object to the Node, where the object is a science metadata object.
1722
   * 
1723
   * @param session - the Session object containing the credentials for the Subject
1724
   * @param pid - The object identifier to be created
1725
   * @param object - the object bytes
1726
   * @param sysmeta - the system metadata that describes the object  
1727
   * 
1728
   * @return pid - the object identifier created
1729
   * 
1730
   * @throws InvalidToken
1731
   * @throws ServiceFailure
1732
   * @throws NotAuthorized
1733
   * @throws IdentifierNotUnique
1734
   * @throws UnsupportedType
1735
   * @throws InsufficientResources
1736
   * @throws InvalidSystemMetadata
1737
   * @throws NotImplemented
1738
   * @throws InvalidRequest
1739
   */
1740
  public Identifier create(Session session, Identifier pid, InputStream object,
1741
    SystemMetadata sysmeta) 
1742
    throws InvalidToken, ServiceFailure, NotAuthorized, IdentifierNotUnique, 
1743
    UnsupportedType, InsufficientResources, InvalidSystemMetadata, 
1744
    NotImplemented, InvalidRequest {
1745
       
1746
   // verify the pid is valid format
1747
      if (!isValidIdentifier(pid)) {
1748
          throw new InvalidRequest("4891", "The provided identifier is invalid.");
1749
      }
1750
      // The lock to be used for this identifier
1751
      Lock lock = null;
1752

    
1753
      try {
1754
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1755
          lock.lock();
1756
          // are we allowed?
1757
          boolean isAllowed = false;
1758
          isAllowed = isAdminAuthorized(session);
1759
          
1760
          // additional check if it is the authoritative node if it is not the admin
1761
          if(!isAllowed) {
1762
              isAllowed = isAuthoritativeMNodeAdmin(session, pid);
1763
          }
1764

    
1765
          // proceed if we're called by a CN
1766
          if ( isAllowed ) {
1767
              //check if the series id is legitimate. It uses the same rules of the method registerSystemMetadata
1768
              //checkSidInModifyingSystemMetadata(sysmeta, "4896", "4893");
1769
              Identifier sid = sysmeta.getSeriesId();
1770
              if(sid != null) {
1771
                  if (!isValidIdentifier(sid)) {
1772
                      throw new InvalidRequest("4891", "The series id in the system metadata is invalid in the request.");
1773
                  }
1774
              }
1775
              // create the coordinating node version of the document      
1776
              logMetacat.debug("Locked identifier " + pid.getValue());
1777
              sysmeta.setSerialVersion(BigInteger.ONE);
1778
              sysmeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
1779
              //sysmeta.setArchived(false); // this is a create op, not update
1780
              
1781
              // the CN should have set the origin and authoritative member node fields
1782
              try {
1783
                  sysmeta.getOriginMemberNode().getValue();
1784
                  sysmeta.getAuthoritativeMemberNode().getValue();
1785
                  
1786
              } catch (NullPointerException npe) {
1787
                  throw new InvalidSystemMetadata("4896", 
1788
                      "Both the origin and authoritative member node identifiers need to be set.");
1789
                  
1790
              }
1791
              pid = super.create(session, pid, object, sysmeta);
1792

    
1793
          } else {
1794
              String msg = "The subject listed as " + session.getSubject().getValue() + 
1795
                  " isn't allowed to call create() on a Coordinating Node.";
1796
              logMetacat.info(msg);
1797
              throw new NotAuthorized("1100", msg);
1798
          }
1799
          
1800
      } catch (RuntimeException e) {
1801
          // Convert Hazelcast runtime exceptions to service failures
1802
          String msg = "There was a problem creating the object identified by " +
1803
              pid.getValue() + ". There error message was: " + e.getMessage();
1804
          throw new ServiceFailure("4893", msg);
1805
          
1806
      } finally {
1807
    	  if (lock != null) {
1808
	          lock.unlock();
1809
	          logMetacat.debug("Unlocked identifier " + pid.getValue());
1810
    	  }
1811
      }
1812
      
1813
      return pid;
1814

    
1815
  }
1816

    
1817
  /**
1818
   * Set access for a given object using the object identifier and a Subject
1819
   * under a given Session.
1820
   * 
1821
   * @param session - the Session object containing the credentials for the Subject
1822
   * @param pid - the object identifier for the given object to apply the policy
1823
   * @param policy - the access policy to be applied
1824
   * 
1825
   * @return true if the application of the policy succeeds
1826
   * @throws InvalidToken
1827
   * @throws ServiceFailure
1828
   * @throws NotFound
1829
   * @throws NotAuthorized
1830
   * @throws NotImplemented
1831
   * @throws InvalidRequest
1832
   */
1833
  public boolean setAccessPolicy(Session session, Identifier pid, 
1834
      AccessPolicy accessPolicy, long serialVersion) 
1835
      throws InvalidToken, ServiceFailure, NotFound, NotAuthorized, 
1836
      NotImplemented, InvalidRequest, VersionMismatch {
1837
      
1838
   // do we have a valid pid?
1839
      if (pid == null || pid.getValue().trim().equals("")) {
1840
          throw new InvalidRequest("4402", "The provided identifier was invalid.");
1841
          
1842
      }
1843
      
1844
      String serviceFailureCode = "4430";
1845
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
1846
      if(sid != null) {
1847
          pid = sid;
1848
      }
1849
      // The lock to be used for this identifier
1850
      Lock lock = null;
1851
      SystemMetadata systemMetadata = null;
1852
      
1853
      boolean success = false;
1854
      
1855
      // get the subject
1856
      Subject subject = session.getSubject();
1857
      
1858
      // are we allowed to do this?
1859
      if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
1860
          throw new NotAuthorized("4420", "not allowed by "
1861
                  + subject.getValue() + " on " + pid.getValue());
1862
      }
1863
      
1864
      try {
1865
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1866
          lock.lock();
1867
          logMetacat.debug("Locked identifier " + pid.getValue());
1868

    
1869
          try {
1870
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1871

    
1872
              if ( systemMetadata == null ) {
1873
                  throw new NotFound("4400", "Couldn't find an object identified by " + pid.getValue());
1874
                  
1875
              }
1876
              // does the request have the most current system metadata?
1877
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
1878
                 String msg = "The requested system metadata version number " + 
1879
                     serialVersion + " differs from the current version at " +
1880
                     systemMetadata.getSerialVersion().longValue() +
1881
                     ". Please get the latest copy in order to modify it.";
1882
                 throw new VersionMismatch("4402", msg);
1883
                 
1884
              }
1885
              
1886
          } catch (RuntimeException e) {
1887
              // convert Hazelcast RuntimeException to NotFound
1888
              throw new NotFound("4400", "No record found for: " + pid);
1889
            
1890
          }
1891
              
1892
          // set the access policy
1893
          systemMetadata.setAccessPolicy(accessPolicy);
1894
          
1895
          // update the system metadata
1896
          try {
1897
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
1898
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
1899
              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
1900
              notifyReplicaNodes(systemMetadata);
1901
              
1902
          } catch (RuntimeException e) {
1903
              // convert Hazelcast RuntimeException to ServiceFailure
1904
              throw new ServiceFailure("4430", e.getMessage());
1905
            
1906
          }
1907
          
1908
      } catch (RuntimeException e) {
1909
          throw new ServiceFailure("4430", e.getMessage());
1910
          
1911
      } finally {
1912
          lock.unlock();
1913
          logMetacat.debug("Unlocked identifier " + pid.getValue());
1914
        
1915
      }
1916

    
1917
    
1918
    // TODO: how do we know if the map was persisted?
1919
    success = true;
1920
    
1921
    return success;
1922
  }
1923

    
1924
  /**
1925
   * Full replacement of replication metadata in the system metadata for the 
1926
   * specified object, changes date system metadata modified
1927
   * 
1928
   * @param session - the Session object containing the credentials for the Subject
1929
   * @param pid - the object identifier for the given object to apply the policy
1930
   * @param replica - the replica to be updated
1931
   * @return
1932
   * @throws NotImplemented
1933
   * @throws NotAuthorized
1934
   * @throws ServiceFailure
1935
   * @throws InvalidRequest
1936
   * @throws NotFound
1937
   * @throws VersionMismatch
1938
   */
1939
  @Override
1940
  public boolean updateReplicationMetadata(Session session, Identifier pid,
1941
      Replica replica, long serialVersion) 
1942
      throws NotImplemented, NotAuthorized, ServiceFailure, InvalidRequest,
1943
      NotFound, VersionMismatch {
1944
      
1945
      // The lock to be used for this identifier
1946
      Lock lock = null;
1947
      
1948
      // get the subject
1949
      Subject subject = session.getSubject();
1950
      
1951
      // are we allowed to do this?
1952
      if(session == null) {
1953
          throw new NotAuthorized("4851", "Session cannot be null. It is not authorized for updating the replication metadata of the object "+pid.getValue());
1954
      } else {
1955
          if(!isCNAdmin(session)) {
1956
              throw new NotAuthorized("4851", "The client -"+ session.getSubject().getValue()+ "is not a CN and is not authorized for updating the replication metadata of the object "+pid.getValue());
1957
        }
1958
      }
1959
      /*try {
1960

    
1961
          // what is the controlling permission?
1962
          if (!isAuthorized(session, pid, Permission.WRITE)) {
1963
              throw new NotAuthorized("4851", "not allowed by "
1964
                      + subject.getValue() + " on " + pid.getValue());
1965
          }
1966

    
1967
        
1968
      } catch (InvalidToken e) {
1969
          throw new NotAuthorized("4851", "not allowed by " + subject.getValue() + 
1970
                  " on " + pid.getValue());  
1971
          
1972
      }*/
1973

    
1974
      SystemMetadata systemMetadata = null;
1975
      try {
1976
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1977
          lock.lock();
1978
          logMetacat.debug("Locked identifier " + pid.getValue());
1979

    
1980
          try {      
1981
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1982

    
1983
              // does the request have the most current system metadata?
1984
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
1985
                 String msg = "The requested system metadata version number " + 
1986
                     serialVersion + " differs from the current version at " +
1987
                     systemMetadata.getSerialVersion().longValue() +
1988
                     ". Please get the latest copy in order to modify it.";
1989
                 throw new VersionMismatch("4855", msg);
1990
              }
1991
              
1992
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
1993
              throw new NotFound("4854", "No record found for: " + pid.getValue() +
1994
                  " : " + e.getMessage());
1995
            
1996
          }
1997
              
1998
          // set the status for the replica
1999
          List<Replica> replicas = systemMetadata.getReplicaList();
2000
          NodeReference replicaNode = replica.getReplicaMemberNode();
2001
          ReplicationStatus replicaStatus = replica.getReplicationStatus();
2002
          int index = 0;
2003
          for (Replica listedReplica: replicas) {
2004
              
2005
              // remove the replica that we are replacing
2006
              if ( replicaNode.getValue().equals(listedReplica.getReplicaMemberNode().getValue())) {
2007
                      // don't allow status to change from COMPLETED to anything other
2008
                      // than INVALIDATED: prevents overwrites from race conditions
2009
                	  if ( !listedReplica.getReplicationStatus().equals(replicaStatus) && 
2010
                	       listedReplica.getReplicationStatus().equals(ReplicationStatus.COMPLETED) &&
2011
            		       !replicaStatus.equals(ReplicationStatus.INVALIDATED) ) {
2012
                	  throw new InvalidRequest("4853", "Status state change from " +
2013
                			  listedReplica.getReplicationStatus() + " to " +
2014
                			  replicaStatus.toString() + "is prohibited for identifier " +
2015
                			  pid.getValue() + " and target node " + 
2016
                			  listedReplica.getReplicaMemberNode().getValue());
2017

    
2018
            	  }
2019
                  replicas.remove(index);
2020
                  break;
2021
                  
2022
              }
2023
              index++;
2024
          }
2025
          
2026
          // add the new replica item
2027
          replicas.add(replica);
2028
          systemMetadata.setReplicaList(replicas);
2029
          
2030
          // update the metadata
2031
          try {
2032
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
2033
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
2034
              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
2035
              
2036
              // inform replica nodes of the change if the status is complete
2037
              if ( replicaStatus.equals(ReplicationStatus.COMPLETED) ) {
2038
            	  notifyReplicaNodes(systemMetadata);
2039
            	  
2040
              }
2041
          } catch (RuntimeException e) {
2042
              logMetacat.info("Unknown RuntimeException thrown: " + e.getCause().getMessage());
2043
              throw new ServiceFailure("4852", e.getMessage());
2044
          
2045
          }
2046
          
2047
      } catch (RuntimeException e) {
2048
          logMetacat.info("Unknown RuntimeException thrown: " + e.getCause().getMessage());
2049
          throw new ServiceFailure("4852", e.getMessage());
2050
      
2051
      } finally {
2052
          lock.unlock();
2053
          logMetacat.debug("Unlocked identifier " + pid.getValue());
2054
          
2055
      }
2056
    
2057
      return true;
2058
      
2059
  }
2060
  
2061
  /**
2062
   * 
2063
   */
2064
  @Override
2065
  public ObjectList listObjects(Session session, Date startTime, 
2066
      Date endTime, ObjectFormatIdentifier formatid, NodeReference nodeId,Identifier identifier,
2067
      Integer start, Integer count)
2068
      throws InvalidRequest, InvalidToken, NotAuthorized, NotImplemented,
2069
      ServiceFailure {
2070

    
2071
      return super.listObjects(session, startTime, endTime, formatid, identifier, nodeId, start, count);
2072
  }
2073

    
2074
  
2075
 	/**
2076
 	 * Returns a list of checksum algorithms that are supported by DataONE.
2077
 	 * @return cal  the list of checksum algorithms
2078
 	 * 
2079
 	 * @throws ServiceFailure
2080
 	 * @throws NotImplemented
2081
 	 */
2082
  @Override
2083
  public ChecksumAlgorithmList listChecksumAlgorithms()
2084
			throws ServiceFailure, NotImplemented {
2085
		ChecksumAlgorithmList cal = new ChecksumAlgorithmList();
2086
		cal.addAlgorithm("MD5");
2087
		cal.addAlgorithm("SHA-1");
2088
		return cal;
2089
		
2090
	}
2091

    
2092
  /**
2093
   * Notify replica Member Nodes of system metadata changes for a given pid
2094
   * 
2095
   * @param currentSystemMetadata - the up to date system metadata
2096
   */
2097
  public void notifyReplicaNodes(SystemMetadata currentSystemMetadata) {
2098
      
2099
      Session session = null;
2100
      List<Replica> replicaList = currentSystemMetadata.getReplicaList();
2101
      //MNode mn = null;
2102
      NodeReference replicaNodeRef = null;
2103
      CNode cn = null;
2104
      NodeType nodeType = null;
2105
      List<Node> nodeList = null;
2106
      
2107
      try {
2108
          cn = D1Client.getCN();
2109
          nodeList = cn.listNodes().getNodeList();
2110
          
2111
      } catch (Exception e) { // handle BaseException and other I/O issues
2112
          
2113
          // swallow errors since the call is not critical
2114
          logMetacat.error("Can't inform MNs of system metadata changes due " +
2115
              "to communication issues with the CN: " + e.getMessage());
2116
          
2117
      }
2118
      
2119
      if ( replicaList != null ) {
2120
          
2121
          // iterate through the replicas and inform  MN replica nodes
2122
          for (Replica replica : replicaList) {
2123
              String replicationVersion = null;
2124
              replicaNodeRef = replica.getReplicaMemberNode();
2125
              try {
2126
                  if (nodeList != null) {
2127
                      // find the node type
2128
                      for (Node node : nodeList) {
2129
                          if ( node.getIdentifier().getValue().equals(replicaNodeRef.getValue()) ) {
2130
                              nodeType = node.getType();
2131
                              D1NodeVersionChecker checker = new D1NodeVersionChecker(replicaNodeRef);
2132
                              replicationVersion = checker.getVersion("MNRead");
2133
                              break;
2134
              
2135
                          }
2136
                      }
2137
                  }
2138
              
2139
                  // notify only MNs
2140
                  if (replicationVersion != null && nodeType != null && nodeType == NodeType.MN) {
2141
                      if(replicationVersion.equalsIgnoreCase(D1NodeVersionChecker.V2)) {
2142
                          //connect to a v2 mn
2143
                          MNode mn = D1Client.getMN(replicaNodeRef);
2144
                          mn.systemMetadataChanged(session, 
2145
                              currentSystemMetadata.getIdentifier(), 
2146
                              currentSystemMetadata.getSerialVersion().longValue(),
2147
                              currentSystemMetadata.getDateSysMetadataModified());
2148
                      } else if (replicationVersion.equalsIgnoreCase(D1NodeVersionChecker.V1)) {
2149
                          //connect to a v1 mn
2150
                          org.dataone.client.v1.MNode mn = org.dataone.client.v1.itk.D1Client.getMN(replicaNodeRef);
2151
                          mn.systemMetadataChanged(session, 
2152
                                  currentSystemMetadata.getIdentifier(), 
2153
                                  currentSystemMetadata.getSerialVersion().longValue(),
2154
                                  currentSystemMetadata.getDateSysMetadataModified());
2155
                      }
2156
                      
2157
                  }
2158
              
2159
              } catch (Exception e) { // handle BaseException and other I/O issues
2160
              
2161
                  // swallow errors since the call is not critical
2162
                  logMetacat.error("Can't inform "
2163
                          + replicaNodeRef.getValue()
2164
                          + " of system metadata changes due "
2165
                          + "to communication issues with the CN: "
2166
                          + e.getMessage());
2167
              
2168
              }
2169
          }
2170
      }
2171
  }
2172
  
2173
  /**
2174
   * Update the system metadata of the specified pid.
2175
   */
2176
  @Override
2177
  public boolean updateSystemMetadata(Session session, Identifier pid,
2178
          SystemMetadata sysmeta) throws NotImplemented, NotAuthorized,
2179
          ServiceFailure, InvalidRequest, InvalidSystemMetadata, InvalidToken {
2180
   if(sysmeta == null) {
2181
       throw  new InvalidRequest("4863", "The system metadata object should NOT be null in the updateSystemMetadata request.");
2182
   }
2183
   if(pid == null || pid.getValue() == null) {
2184
       throw new InvalidRequest("4863", "Please specify the id in the updateSystemMetadata request ") ;
2185
   }
2186

    
2187
   if (session == null) {
2188
       //TODO: many of the thrown exceptions do not use the correct error codes
2189
       //check these against the docs and correct them
2190
       throw new NotAuthorized("4861", "No Session - could not authorize for updating system metadata." +
2191
               "  If you are not logged in, please do so and retry the request.");
2192
   } else {
2193
         //only CN is allwoed
2194
         if(!isCNAdmin(session)) {
2195
               throw new NotAuthorized("4861", "The client -"+ session.getSubject().getValue()+ "is not authorized for updating the system metadata of the object "+pid.getValue());
2196
         }
2197
   }
2198
    //update the system metadata locally  
2199
    boolean success = super.updateSystemMetadata(session, pid, sysmeta);
2200
    return success;
2201
  }
2202
  
2203
    @Override
2204
    public boolean synchronize(Session session, Identifier pid) throws NotAuthorized, InvalidRequest, NotImplemented{
2205
        throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2206

    
2207
    }
2208

    
2209
	@Override
2210
	public QueryEngineDescription getQueryEngineDescription(Session session,
2211
			String queryEngine) throws InvalidToken, ServiceFailure, NotAuthorized,
2212
			NotImplemented, NotFound {
2213
		throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2214

    
2215
	}
2216
	
2217
	@Override
2218
	public QueryEngineList listQueryEngines(Session session) throws InvalidToken,
2219
			ServiceFailure, NotAuthorized, NotImplemented {
2220
		throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2221

    
2222
	}
2223
	
2224
	@Override
2225
	public InputStream query(Session session, String queryEngine, String query)
2226
			throws InvalidToken, ServiceFailure, NotAuthorized, InvalidRequest,
2227
			NotImplemented, NotFound {
2228
		throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2229

    
2230
	}
2231
	
2232
	@Override
2233
	public Node getCapabilities() throws NotImplemented, ServiceFailure {
2234
		throw new NotImplemented("0000", "The CN capabilities are not stored in Metacat.");
2235
	}
2236

    
2237
}
(1-1/8)