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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
              }
830
              
831
              if (replicas.size() > 0 && replicas != null) {
832
                  // find the target replica index in the replica list
833
                  for (Replica replica : replicas) {
834
                      String replicaNodeStr = replica.getReplicaMemberNode().getValue();
835
                      String targetNodeStr = targetNode.getValue();
836
                      logMetacat.debug("Comparing " + replicaNodeStr + " to " + targetNodeStr);
837
                  
838
                      if (replicaNodeStr.equals(targetNodeStr)) {
839
                          replicaEntryIndex = count;
840
                          logMetacat.debug("replica entry index is: "
841
                                  + replicaEntryIndex);
842
                          break;
843
                      }
844
                      count++;
845
                  
846
                  }
847
              }
848
              // are we allowed to do this? only CNs and target MNs are allowed
849
              CNode cn = D1Client.getCN();
850
              List<Node> nodes = cn.listNodes().getNodeList();
851
              
852
              // find the node in the node list
853
              for ( Node node : nodes ) {
854
                  
855
                  NodeReference nodeReference = node.getIdentifier();
856
                  logMetacat.debug("In setReplicationStatus(), Node reference is: " + 
857
                      nodeReference.getValue());
858
                  
859
                  // allow target MN certs
860
                  if ( targetNode.getValue().equals(nodeReference.getValue() ) &&
861
                      node.getType().equals(NodeType.MN)) {
862
                      List<Subject> nodeSubjects = node.getSubjectList();
863
                      
864
                      // check if the session subject is in the node subject list
865
                      for (Subject nodeSubject : nodeSubjects) {
866
                          logMetacat.debug("In setReplicationStatus(), comparing subjects: " +
867
                                  nodeSubject.getValue() + " and " + subject.getValue());
868
                          if ( nodeSubject.equals(subject) ) { // subject of session == target node subject
869
                              
870
                              // lastly limit to COMPLETED, INVALIDATED,
871
                              // and FAILED status updates from MNs only
872
                              if ( status.equals(ReplicationStatus.COMPLETED) ||
873
                                   status.equals(ReplicationStatus.INVALIDATED) ||
874
                                   status.equals(ReplicationStatus.FAILED)) {
875
                                  allowed = true;
876
                                  break;
877
                                  
878
                              }                              
879
                          }
880
                      }                 
881
                  }
882
              }
883

    
884
              if ( !allowed ) {
885
                  //check for CN admin access
886
                  //allowed = isAuthorized(session, pid, Permission.WRITE);
887
                  allowed = isCNAdmin(session);
888
                  
889
              }              
890
              
891
              if ( !allowed ) {
892
                  String msg = "The subject identified by "
893
                          + subject.getValue()
894
                          + " is not a CN or MN, and does not have permission to set the replication status for "
895
                          + "the replica identified by "
896
                          + targetNode.getValue() + ".";
897
                  logMetacat.info(msg);
898
                  throw new NotAuthorized("4720", msg);
899
                  
900
              }
901

    
902
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
903
            throw new NotFound("4740", "No record found for: " + pid.getValue() +
904
                " : " + e.getMessage());
905
            
906
          }
907
          
908
          Replica targetReplica = new Replica();
909
          // set the status for the replica
910
          if ( replicaEntryIndex != -1 ) {
911
              targetReplica = replicas.get(replicaEntryIndex);
912
              
913
              // don't allow status to change from COMPLETED to anything other
914
              // than INVALIDATED: prevents overwrites from race conditions
915
              if ( targetReplica.getReplicationStatus().equals(ReplicationStatus.COMPLETED) &&
916
            	   !status.equals(ReplicationStatus.INVALIDATED)) {
917
            	  throw new InvalidRequest("4730", "Status state change from " +
918
            			  targetReplica.getReplicationStatus() + " to " +
919
            			  status.toString() + "is prohibited for identifier " +
920
            			  pid.getValue() + " and target node " + 
921
            			  targetReplica.getReplicaMemberNode().getValue());
922
              }
923
              
924
              targetReplica.setReplicationStatus(status);
925
              
926
              logMetacat.debug("Set the replication status for " + 
927
                  targetReplica.getReplicaMemberNode().getValue() + " to " +
928
                  targetReplica.getReplicationStatus() + " for identifier " +
929
                  pid.getValue());
930
              
931
          } else {
932
              // this is a new entry, create it
933
              targetReplica.setReplicaMemberNode(targetNode);
934
              targetReplica.setReplicationStatus(status);
935
              targetReplica.setReplicaVerified(Calendar.getInstance().getTime());
936
              replicas.add(targetReplica);
937
              
938
          }
939
          
940
          systemMetadata.setReplicaList(replicas);
941
                
942
          // update the metadata
943
          try {
944
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
945
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
946
              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
947

    
948
              if ( !status.equals(ReplicationStatus.QUEUED) && 
949
            	   !status.equals(ReplicationStatus.REQUESTED)) {
950
                  
951
                logMetacat.trace("METRICS:\tREPLICATION:\tEND REQUEST:\tPID:\t" + pid.getValue() + 
952
                          "\tNODE:\t" + targetNode.getValue() + 
953
                          "\tSIZE:\t" + systemMetadata.getSize().intValue());
954
                
955
                logMetacat.trace("METRICS:\tREPLICATION:\t" + status.toString().toUpperCase() +
956
                          "\tPID:\t"  + pid.getValue() + 
957
                          "\tNODE:\t" + targetNode.getValue() + 
958
                          "\tSIZE:\t" + systemMetadata.getSize().intValue());
959
              }
960

    
961
              if ( status.equals(ReplicationStatus.FAILED) && failure != null ) {
962
                  logMetacat.warn("Replication failed for identifier " + pid.getValue() +
963
                      " on target node " + targetNode + ". The exception was: " +
964
                      failure.getMessage());
965
              }
966
              
967
			  // update the replica nodes about the completed replica when complete
968
              if (status.equals(ReplicationStatus.COMPLETED)) {
969
				notifyReplicaNodes(systemMetadata);
970
			}
971
          
972
          } catch (RuntimeException e) {
973
              throw new ServiceFailure("4700", e.getMessage());
974
          
975
          }
976
          
977
    } catch (RuntimeException e) {
978
        String msg = "There was a RuntimeException getting the lock for " +
979
            pid.getValue();
980
        logMetacat.info(msg);
981
        
982
    } finally {
983
        lock.unlock();
984
        logMetacat.debug("Unlocked identifier " + pid.getValue());
985
        
986
    }
987
      
988
      return true;
989
  }
990
  
991
/**
992
   * Return the checksum of the object given the identifier 
993
   * 
994
   * @param session - the Session object containing the credentials for the Subject
995
   * @param pid - the object identifier for the given object
996
   * 
997
   * @return checksum - the checksum of the object
998
   * 
999
   * @throws InvalidToken
1000
   * @throws ServiceFailure
1001
   * @throws NotAuthorized
1002
   * @throws NotFound
1003
   * @throws NotImplemented
1004
   */
1005
  @Override
1006
  public Checksum getChecksum(Session session, Identifier pid)
1007
    throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, 
1008
    NotImplemented {
1009
    
1010
	boolean isAuthorized = false;
1011
	try {
1012
		isAuthorized = isAuthorized(session, pid, Permission.READ);
1013
	} catch (InvalidRequest e) {
1014
		throw new ServiceFailure("1410", e.getDescription());
1015
	}  
1016
    if (!isAuthorized) {
1017
        throw new NotAuthorized("1400", Permission.READ + " not allowed on " + pid.getValue());  
1018
    }
1019
    
1020
    SystemMetadata systemMetadata = null;
1021
    Checksum checksum = null;
1022
    
1023
    try {
1024
        systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);        
1025

    
1026
        if (systemMetadata == null ) {
1027
            String error ="";
1028
            String localId = null;
1029
            try {
1030
                localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
1031
              
1032
             } catch (Exception e) {
1033
                logMetacat.warn("Couldn't find the local id for the pid "+pid.getValue());
1034
            }
1035
            
1036
            if(localId != null && EventLog.getInstance().isDeleted(localId)) {
1037
                error = DELETEDMESSAGE;
1038
            } else if (localId == null && EventLog.getInstance().isDeleted(pid.getValue())) {
1039
                error = DELETEDMESSAGE;
1040
            }
1041
            throw new NotFound("1420", "Couldn't find an object identified by " + pid.getValue()+". "+error);
1042
        }
1043
        checksum = systemMetadata.getChecksum();
1044
        
1045
    } catch (RuntimeException e) {
1046
        throw new ServiceFailure("1410", "An error occurred getting the checksum for " + 
1047
            pid.getValue() + ". The error message was: " + e.getMessage());
1048
      
1049
    }
1050
    
1051
    return checksum;
1052
  }
1053

    
1054
  /**
1055
   * Resolve the location of a given object
1056
   * 
1057
   * @param session - the Session object containing the credentials for the Subject
1058
   * @param pid - the object identifier for the given object
1059
   * 
1060
   * @return objectLocationList - the list of nodes known to contain the object
1061
   * 
1062
   * @throws InvalidToken
1063
   * @throws ServiceFailure
1064
   * @throws NotAuthorized
1065
   * @throws NotFound
1066
   * @throws NotImplemented
1067
   */
1068
  @Override
1069
  public ObjectLocationList resolve(Session session, Identifier pid)
1070
    throws InvalidToken, ServiceFailure, NotAuthorized,
1071
    NotFound, NotImplemented {
1072

    
1073
    throw new NotImplemented("4131", "resolve not implemented");
1074

    
1075
  }
1076

    
1077
  /**
1078
   * Metacat does not implement this method at the CN level
1079
   */
1080
  @Override
1081
  public ObjectList search(Session session, String queryType, String query)
1082
    throws InvalidToken, ServiceFailure, NotAuthorized, InvalidRequest,
1083
    NotImplemented {
1084

    
1085
		  throw new NotImplemented("4281", "Metacat does not implement CN.search");
1086
	  
1087
//    ObjectList objectList = null;
1088
//    try {
1089
//        objectList = 
1090
//          IdentifierManager.getInstance().querySystemMetadata(
1091
//              null, //startTime, 
1092
//              null, //endTime,
1093
//              null, //objectFormat, 
1094
//              false, //replicaStatus, 
1095
//              0, //start, 
1096
//              1000 //count
1097
//              );
1098
//        
1099
//    } catch (Exception e) {
1100
//      throw new ServiceFailure("4310", "Error querying system metadata: " + e.getMessage());
1101
//    }
1102
//
1103
//      return objectList;
1104
		  
1105
  }
1106
  
1107
  /**
1108
   * Returns the object format registered in the DataONE Object Format 
1109
   * Vocabulary for the given format identifier
1110
   * 
1111
   * @param fmtid - the identifier of the format requested
1112
   * 
1113
   * @return objectFormat - the object format requested
1114
   * 
1115
   * @throws ServiceFailure
1116
   * @throws NotFound
1117
   * @throws InsufficientResources
1118
   * @throws NotImplemented
1119
   */
1120
  @Override
1121
  public ObjectFormat getFormat(ObjectFormatIdentifier fmtid)
1122
    throws ServiceFailure, NotFound, NotImplemented {
1123
     
1124
      return ObjectFormatService.getInstance().getFormat(fmtid);
1125
      
1126
  }
1127

    
1128
    @Override
1129
    public ObjectFormatIdentifier addFormat(Session session, ObjectFormatIdentifier formatId, ObjectFormat format)
1130
            throws ServiceFailure, NotFound, NotImplemented, NotAuthorized, InvalidToken {
1131

    
1132
        logMetacat.debug("CNodeService.addFormat() called.\n" + 
1133
                "format ID: " + format.getFormatId() + "\n" + 
1134
                "format name: " + format.getFormatName() + "\n" + 
1135
                "format type: " + format.getFormatType() );
1136
        
1137
        // FIXME remove:
1138
        if (true)
1139
            throw new NotImplemented("0000", "Implementation underway... Will need testing too...");
1140
        
1141
        if (!isAdminAuthorized(session))
1142
            throw new NotAuthorized("0000", "Not authorized to call addFormat()");
1143

    
1144
        String separator = ".";
1145
        try {
1146
            separator = PropertyService.getProperty("document.accNumSeparator");
1147
        } catch (PropertyNotFoundException e) {
1148
            logMetacat.warn("Unable to find property \"document.accNumSeparator\"\n" + e.getMessage());
1149
        }
1150

    
1151
        // find pids of last and next ObjectFormatList
1152
        String OBJECT_FORMAT_DOCID = ObjectFormatService.OBJECT_FORMAT_DOCID;
1153
        int lastRev = -1;
1154
        try {
1155
            lastRev = DBUtil.getLatestRevisionInDocumentTable(OBJECT_FORMAT_DOCID);
1156
        } catch (SQLException e) {
1157
            throw new ServiceFailure("0000", "Unable to locate last revision of the object format list.\n" + e.getMessage());
1158
        }
1159
        int nextRev = lastRev + 1;
1160
        String lastDocID = OBJECT_FORMAT_DOCID + separator + lastRev;
1161
        String nextDocID = OBJECT_FORMAT_DOCID + separator + nextRev;
1162
        
1163
        Identifier lastPid = new Identifier();
1164
        lastPid.setValue(lastDocID);
1165
        Identifier nextPid = new Identifier();
1166
        nextPid.setValue(nextDocID);
1167
        
1168
        logMetacat.debug("Last ObjectFormatList document ID: " + lastDocID + "\n" 
1169
                + "Next ObjectFormatList document ID: " + nextDocID);
1170
        
1171
        // add new format to the current ObjectFormatList
1172
        ObjectFormatList objectFormatList = ObjectFormatService.getInstance().listFormats();
1173
        List<ObjectFormat> innerList = objectFormatList.getObjectFormatList();
1174
        innerList.add(format);
1175

    
1176
        // get existing (last) sysmeta and make a copy
1177
        SystemMetadata lastSysmeta = getSystemMetadata(session, lastPid);
1178
        SystemMetadata nextSysmeta = new SystemMetadata();
1179
        try {
1180
            BeanUtils.copyProperties(nextSysmeta, lastSysmeta);
1181
        } catch (IllegalAccessException | InvocationTargetException e) {
1182
            throw new ServiceFailure("0000", "Unable to create system metadata for updated object format list.\n" + e.getMessage());
1183
        }
1184
        
1185
        // create the new object format list, and update the old sysmeta with obsoletedBy
1186
        createNewObjectFormatList(session, lastPid, nextPid, objectFormatList, nextSysmeta);
1187
        updateOldObjectFormatList(session, lastPid, nextPid, lastSysmeta);
1188
        
1189
        // TODO add to ObjectFormatService local cache?
1190
        
1191
        return formatId;
1192
    }
1193

    
1194
    /**
1195
     * Creates the object for the next / updated version of the ObjectFormatList.
1196
     * 
1197
     * @param session
1198
     * @param lastPid
1199
     * @param nextPid
1200
     * @param objectFormatList
1201
     * @param lastSysmeta
1202
     */
1203
    private void createNewObjectFormatList(Session session, Identifier lastPid, Identifier nextPid,
1204
            ObjectFormatList objectFormatList, SystemMetadata lastSysmeta) 
1205
                    throws InvalidToken, ServiceFailure, NotAuthorized, NotImplemented {
1206
        
1207
        PipedInputStream is = new PipedInputStream();
1208
        PipedOutputStream os = null;
1209
        
1210
        try {
1211
            os = new PipedOutputStream(is);
1212
            TypeMarshaller.marshalTypeToOutputStream(objectFormatList, os);
1213
        } catch (JiBXException | IOException e) {
1214
            throw new ServiceFailure("0000", "Unable to marshal object format list.\n" + e.getMessage());
1215
        } finally {
1216
            try {
1217
                os.flush();
1218
                os.close();
1219
            } catch (IOException ioe) {
1220
                throw new ServiceFailure("0000", "Unable to marshal object format list.\n" + ioe.getMessage());
1221
            }
1222
        }
1223
        
1224
        BigInteger docSize = lastSysmeta.getSize();
1225
        try {
1226
            docSize = BigInteger.valueOf(is.available());
1227
        } catch (IOException e) {
1228
            logMetacat.warn("Unable to set an accurate size for the new object format list.", e);
1229
        }
1230
        
1231
        lastSysmeta.setIdentifier(nextPid);
1232
        lastSysmeta.setObsoletes(lastPid);
1233
        lastSysmeta.setSize(docSize); 
1234
        lastSysmeta.setSubmitter(session.getSubject());
1235
        lastSysmeta.setDateUploaded(new Date());
1236
        
1237
        // create new object format list
1238
        try {
1239
            create(session, nextPid, is, lastSysmeta);
1240
        } catch (IdentifierNotUnique | UnsupportedType | InsufficientResources
1241
                | InvalidSystemMetadata | InvalidRequest e) {
1242
            throw new ServiceFailure("0000", "Unable to create() new object format list" + e.getMessage());
1243
        }
1244
    }
1245
  
1246
    /**
1247
     * Updates the SystemMetadata for the old version of the ObjectFormatList
1248
     * by setting the obsoletedBy value to the pid of the new version of the 
1249
     * ObjectFormatList.
1250
     * 
1251
     * @param session
1252
     * @param lastPid
1253
     * @param obsoletedByPid
1254
     * @param lastSysmeta
1255
     * @throws ServiceFailure
1256
     */
1257
    private void updateOldObjectFormatList(Session session, Identifier lastPid, Identifier obsoletedByPid, SystemMetadata lastSysmeta) 
1258
            throws ServiceFailure {
1259
        
1260
        lastSysmeta.setObsoletedBy(obsoletedByPid);
1261
        
1262
        try {
1263
            this.updateSystemMetadata(session, lastPid, lastSysmeta);
1264
        } catch (NotImplemented | NotAuthorized | ServiceFailure | InvalidRequest
1265
                | InvalidSystemMetadata | InvalidToken e) {
1266
            throw new ServiceFailure("0000", "Unable to update metadata of old object format list.\n" + e.getMessage());
1267
        }
1268
    }
1269
  /**
1270
   * Returns a list of all object formats registered in the DataONE Object 
1271
   * Format Vocabulary
1272
    * 
1273
   * @return objectFormatList - The list of object formats registered in 
1274
   *                            the DataONE Object Format Vocabulary
1275
   * 
1276
   * @throws ServiceFailure
1277
   * @throws NotImplemented
1278
   * @throws InsufficientResources
1279
   */
1280
  @Override
1281
  public ObjectFormatList listFormats() 
1282
    throws ServiceFailure, NotImplemented {
1283

    
1284
    return ObjectFormatService.getInstance().listFormats();
1285
  }
1286

    
1287
  /**
1288
   * Returns a list of nodes that have been registered with the DataONE infrastructure
1289
    * 
1290
   * @return nodeList - List of nodes from the registry
1291
   * 
1292
   * @throws ServiceFailure
1293
   * @throws NotImplemented
1294
   */
1295
  @Override
1296
  public NodeList listNodes() 
1297
    throws NotImplemented, ServiceFailure {
1298

    
1299
    throw new NotImplemented("4800", "listNodes not implemented");
1300
  }
1301

    
1302
  /**
1303
   * Provides a mechanism for adding system metadata independently of its 
1304
   * associated object, such as when adding system metadata for data objects.
1305
    * 
1306
   * @param session - the Session object containing the credentials for the Subject
1307
   * @param pid - The identifier of the object to register the system metadata against
1308
   * @param sysmeta - The system metadata to be registered
1309
   * 
1310
   * @return true if the registration succeeds
1311
   * 
1312
   * @throws NotImplemented
1313
   * @throws NotAuthorized
1314
   * @throws ServiceFailure
1315
   * @throws InvalidRequest
1316
   * @throws InvalidSystemMetadata
1317
   */
1318
  @Override
1319
  public Identifier registerSystemMetadata(Session session, Identifier pid,
1320
      SystemMetadata sysmeta) 
1321
      throws NotImplemented, NotAuthorized, ServiceFailure, InvalidRequest, 
1322
      InvalidSystemMetadata {
1323

    
1324
      // The lock to be used for this identifier
1325
      Lock lock = null;
1326

    
1327
      // TODO: control who can call this?
1328
      if (session == null) {
1329
          //TODO: many of the thrown exceptions do not use the correct error codes
1330
          //check these against the docs and correct them
1331
          throw new NotAuthorized("4861", "No Session - could not authorize for registration." +
1332
                  "  If you are not logged in, please do so and retry the request.");
1333
      } else {
1334
          //only CN is allwoed
1335
          if(!isCNAdmin(session)) {
1336
                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());
1337
          }
1338
      }
1339
      // the identifier can't be an SID
1340
      try {
1341
          if(IdentifierManager.getInstance().systemMetadataSIDExists(pid)) {
1342
              throw new InvalidRequest("4863", "The provided identifier "+pid.getValue()+" is a series id which is not allowed.");
1343
          }
1344
      } catch (SQLException sqle) {
1345
          throw new ServiceFailure("4862", "Couldn't determine if the pid "+pid.getValue()+" is a series id since "+sqle.getMessage());
1346
      }
1347
      
1348
      // verify that guid == SystemMetadata.getIdentifier()
1349
      logMetacat.debug("Comparing guid|sysmeta_guid: " + pid.getValue() + 
1350
          "|" + sysmeta.getIdentifier().getValue());
1351
      if (!pid.getValue().equals(sysmeta.getIdentifier().getValue())) {
1352
          throw new InvalidRequest("4863", 
1353
              "The identifier in method call (" + pid.getValue() + 
1354
              ") does not match identifier in system metadata (" +
1355
              sysmeta.getIdentifier().getValue() + ").");
1356
      }
1357
      
1358
      //check if the sid is legitimate in the system metadata
1359
      //checkSidInModifyingSystemMetadata(sysmeta, "4864", "4862");
1360
      Identifier sid = sysmeta.getSeriesId();
1361
      if(sid != null) {
1362
          if (!isValidIdentifier(sid)) {
1363
              throw new InvalidRequest("4863", "The series id in the system metadata is invalid in the request.");
1364
          }
1365
      }
1366

    
1367
      try {
1368
          lock = HazelcastService.getInstance().getLock(sysmeta.getIdentifier().getValue());
1369
          lock.lock();
1370
          logMetacat.debug("Locked identifier " + pid.getValue());
1371
          logMetacat.debug("Checking if identifier exists...");
1372
          // Check that the identifier does not already exist
1373
          if (HazelcastService.getInstance().getSystemMetadataMap().containsKey(pid)) {
1374
              throw new InvalidRequest("4863", 
1375
                  "The identifier is already in use by an existing object.");
1376
          
1377
          }
1378
          
1379
          // insert the system metadata into the object store
1380
          logMetacat.debug("Starting to insert SystemMetadata...");
1381
          try {
1382
              sysmeta.setSerialVersion(BigInteger.ONE);
1383
              sysmeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
1384
              HazelcastService.getInstance().getSystemMetadataMap().put(sysmeta.getIdentifier(), sysmeta);
1385
              
1386
          } catch (RuntimeException e) {
1387
            logMetacat.error("Problem registering system metadata: " + pid.getValue(), e);
1388
              throw new ServiceFailure("4862", "Error inserting system metadata: " + 
1389
                  e.getClass() + ": " + e.getMessage());
1390
              
1391
          }
1392
          
1393
      } catch (RuntimeException e) {
1394
          throw new ServiceFailure("4862", "Error inserting system metadata: " + 
1395
                  e.getClass() + ": " + e.getMessage());
1396
          
1397
      }  finally {
1398
          lock.unlock();
1399
          logMetacat.debug("Unlocked identifier " + pid.getValue());
1400
          
1401
      }
1402

    
1403
      
1404
      logMetacat.debug("Returning from registerSystemMetadata");
1405
      
1406
      try {
1407
    	  String localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
1408
    	  EventLog.getInstance().log(request.getRemoteAddr(), 
1409
    	          request.getHeader("User-Agent"), session.getSubject().getValue(), 
1410
    	          localId, "registerSystemMetadata");
1411
      } catch (McdbDocNotFoundException e) {
1412
    	  // do nothing, no localId to log with
1413
    	  logMetacat.warn("Could not log 'registerSystemMetadata' event because no localId was found for pid: " + pid.getValue());
1414
      } catch (SQLException ee) {
1415
          // do nothing, no localId to log with
1416
          logMetacat.warn("Could not log 'registerSystemMetadata' event because the localId couldn't be identified for pid: " + pid.getValue());
1417
      }
1418
      
1419
      
1420
      return pid;
1421
  }
1422
  
1423
  /**
1424
   * Given an optional scope and format, reserves and returns an identifier 
1425
   * within that scope and format that is unique and will not be 
1426
   * used by any other sessions. 
1427
    * 
1428
   * @param session - the Session object containing the credentials for the Subject
1429
   * @param pid - The identifier of the object to register the system metadata against
1430
   * @param scope - An optional string to be used to qualify the scope of 
1431
   *                the identifier namespace, which is applied differently 
1432
   *                depending on the format requested. If scope is not 
1433
   *                supplied, a default scope will be used.
1434
   * @param format - The optional name of the identifier format to be used, 
1435
   *                  drawn from a DataONE-specific vocabulary of identifier 
1436
   *                 format names, including several common syntaxes such 
1437
   *                 as DOI, LSID, UUID, and LSRN, among others. If the 
1438
   *                 format is not supplied by the caller, the CN service 
1439
   *                 will use a default identifier format, which may change 
1440
   *                 over time.
1441
   * 
1442
   * @return true if the registration succeeds
1443
   * 
1444
   * @throws InvalidToken
1445
   * @throws ServiceFailure
1446
   * @throws NotAuthorized
1447
   * @throws IdentifierNotUnique
1448
   * @throws NotImplemented
1449
   */
1450
  @Override
1451
  public Identifier reserveIdentifier(Session session, Identifier pid)
1452
  throws InvalidToken, ServiceFailure,
1453
        NotAuthorized, IdentifierNotUnique, NotImplemented, InvalidRequest {
1454

    
1455
    throw new NotImplemented("4191", "reserveIdentifier not implemented on this node");
1456
  }
1457
  
1458
  @Override
1459
  public Identifier generateIdentifier(Session session, String scheme, String fragment)
1460
  throws InvalidToken, ServiceFailure,
1461
        NotAuthorized, NotImplemented, InvalidRequest {
1462
    throw new NotImplemented("4191", "generateIdentifier not implemented on this node");
1463
  }
1464
  
1465
  /**
1466
    * Checks whether the pid is reserved by the subject in the session param
1467
    * If the reservation is held on the pid by the subject, we return true.
1468
    * 
1469
   * @param session - the Session object containing the Subject
1470
   * @param pid - The identifier to check
1471
   * 
1472
   * @return true if the reservation exists for the subject/pid
1473
   * 
1474
   * @throws InvalidToken
1475
   * @throws ServiceFailure
1476
   * @throws NotFound - when the pid is not found (in use or in reservation)
1477
   * @throws NotAuthorized - when the subject does not hold a reservation on the pid
1478
   * @throws IdentifierNotUnique - when the pid is in use
1479
   * @throws NotImplemented
1480
   */
1481

    
1482
  @Override
1483
  public boolean hasReservation(Session session, Subject subject, Identifier pid) 
1484
      throws InvalidToken, ServiceFailure, NotFound, NotAuthorized, IdentifierNotUnique, 
1485
      NotImplemented, InvalidRequest {
1486
  
1487
      throw new NotImplemented("4191", "hasReservation not implemented on this node");
1488
  }
1489

    
1490
  /**
1491
   * Changes ownership (RightsHolder) of the specified object to the 
1492
   * subject specified by userId
1493
    * 
1494
   * @param session - the Session object containing the credentials for the Subject
1495
   * @param pid - Identifier of the object to be modified
1496
   * @param userId - The subject that will be taking ownership of the specified object.
1497
   *
1498
   * @return pid - the identifier of the modified object
1499
   * 
1500
   * @throws ServiceFailure
1501
   * @throws InvalidToken
1502
   * @throws NotFound
1503
   * @throws NotAuthorized
1504
   * @throws NotImplemented
1505
   * @throws InvalidRequest
1506
   */  
1507
  @Override
1508
  public Identifier setRightsHolder(Session session, Identifier pid, Subject userId,
1509
      long serialVersion)
1510
      throws InvalidToken, ServiceFailure, NotFound, NotAuthorized,
1511
      NotImplemented, InvalidRequest, VersionMismatch {
1512
      
1513
      // The lock to be used for this identifier
1514
      Lock lock = null;
1515

    
1516
      // get the subject
1517
      Subject subject = session.getSubject();
1518
      
1519
      String serviceFailureCode = "4490";
1520
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
1521
      if(sid != null) {
1522
          pid = sid;
1523
      }
1524
      
1525
      // are we allowed to do this?
1526
      if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
1527
          throw new NotAuthorized("4440", "not allowed by "
1528
                  + subject.getValue() + " on " + pid.getValue());
1529
          
1530
      }
1531
      
1532
      SystemMetadata systemMetadata = null;
1533
      try {
1534
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1535
          lock.lock();
1536
          logMetacat.debug("Locked identifier " + pid.getValue());
1537

    
1538
          try {
1539
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1540
              
1541
              // does the request have the most current system metadata?
1542
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
1543
                 String msg = "The requested system metadata version number " + 
1544
                     serialVersion + " differs from the current version at " +
1545
                     systemMetadata.getSerialVersion().longValue() +
1546
                     ". Please get the latest copy in order to modify it.";
1547
                 throw new VersionMismatch("4443", msg);
1548
              }
1549
              
1550
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
1551
              throw new NotFound("4460", "No record found for: " + pid.getValue());
1552
              
1553
          }
1554
              
1555
          // set the new rights holder
1556
          systemMetadata.setRightsHolder(userId);
1557
          
1558
          // update the metadata
1559
          try {
1560
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
1561
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
1562
              HazelcastService.getInstance().getSystemMetadataMap().put(pid, systemMetadata);
1563
              notifyReplicaNodes(systemMetadata);
1564
              
1565
          } catch (RuntimeException e) {
1566
              throw new ServiceFailure("4490", e.getMessage());
1567
          
1568
          }
1569
          
1570
      } catch (RuntimeException e) {
1571
          throw new ServiceFailure("4490", e.getMessage());
1572
          
1573
      } finally {
1574
          lock.unlock();
1575
          logMetacat.debug("Unlocked identifier " + pid.getValue());
1576
      
1577
      }
1578
      
1579
      return pid;
1580
  }
1581

    
1582
  /**
1583
   * Verify that a replication task is authorized by comparing the target node's
1584
   * Subject (from the X.509 certificate-derived Session) with the list of 
1585
   * subjects in the known, pending replication tasks map.
1586
   * 
1587
   * @param originatingNodeSession - Session information that contains the 
1588
   *                                 identity of the calling user
1589
   * @param targetNodeSubject - Subject identifying the target node
1590
   * @param pid - the identifier of the object to be replicated
1591
   * @param replicatePermission - the execute permission to be granted
1592
   * 
1593
   * @throws ServiceFailure
1594
   * @throws NotImplemented
1595
   * @throws InvalidToken
1596
   * @throws NotAuthorized
1597
   * @throws InvalidRequest
1598
   * @throws NotFound
1599
   */
1600
  @Override
1601
  public boolean isNodeAuthorized(Session originatingNodeSession, 
1602
    Subject targetNodeSubject, Identifier pid) 
1603
    throws NotImplemented, NotAuthorized, InvalidToken, ServiceFailure, 
1604
    NotFound, InvalidRequest {
1605
    
1606
    boolean isAllowed = false;
1607
    SystemMetadata sysmeta = null;
1608
    NodeReference targetNode = null;
1609
    
1610
    try {
1611
      // get the target node reference from the nodes list
1612
      CNode cn = D1Client.getCN();
1613
      List<Node> nodes = cn.listNodes().getNodeList();
1614
      
1615
      if ( nodes != null ) {
1616
        for (Node node : nodes) {
1617
            
1618
        	if (node.getSubjectList() != null) {
1619
        		
1620
	            for (Subject nodeSubject : node.getSubjectList()) {
1621
	            	
1622
	                if ( nodeSubject.equals(targetNodeSubject) ) {
1623
	                    targetNode = node.getIdentifier();
1624
	                    logMetacat.debug("targetNode is : " + targetNode.getValue());
1625
	                    break;
1626
	                }
1627
	            }
1628
        	}
1629
            
1630
            if ( targetNode != null) { break; }
1631
        }
1632
        
1633
      } else {
1634
          String msg = "Couldn't get the node list from the CN";
1635
          logMetacat.debug(msg);
1636
          throw new ServiceFailure("4872", msg);
1637
          
1638
      }
1639
      
1640
      // can't find a node listed with the given subject
1641
      if ( targetNode == null ) {
1642
          String msg = "There is no Member Node registered with a node subject " +
1643
              "matching " + targetNodeSubject.getValue();
1644
          logMetacat.info(msg);
1645
          throw new NotAuthorized("4871", msg);
1646
          
1647
      }
1648
      
1649
      logMetacat.debug("Getting system metadata for identifier " + pid.getValue());
1650
      
1651
      sysmeta = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1652

    
1653
      if ( sysmeta != null ) {
1654
          
1655
          List<Replica> replicaList = sysmeta.getReplicaList();
1656
          
1657
          if ( replicaList != null ) {
1658
              
1659
              // find the replica with the status set to 'requested'
1660
              for (Replica replica : replicaList) {
1661
                  ReplicationStatus status = replica.getReplicationStatus();
1662
                  NodeReference listedNode = replica.getReplicaMemberNode();
1663
                  if ( listedNode != null && targetNode != null ) {
1664
                      logMetacat.debug("Comparing " + listedNode.getValue()
1665
                              + " to " + targetNode.getValue());
1666
                      
1667
                      if (listedNode.getValue().equals(targetNode.getValue())
1668
                              && status.equals(ReplicationStatus.REQUESTED)) {
1669
                          isAllowed = true;
1670
                          break;
1671

    
1672
                      }
1673
                  }
1674
              }
1675
          }
1676
          logMetacat.debug("The " + targetNode.getValue() + " is allowed " +
1677
              "to replicate: " + isAllowed + " for " + pid.getValue());
1678

    
1679
          
1680
      } else {
1681
          logMetacat.debug("System metadata for identifier " + pid.getValue() +
1682
          " is null.");
1683
          String error ="";
1684
          String localId = null;
1685
          try {
1686
              localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
1687
            
1688
           } catch (Exception e) {
1689
              logMetacat.warn("Couldn't find the local id for the pid "+pid.getValue());
1690
          }
1691
          
1692
          if(localId != null && EventLog.getInstance().isDeleted(localId)) {
1693
              error = DELETEDMESSAGE;
1694
          } else if (localId == null && EventLog.getInstance().isDeleted(pid.getValue())) {
1695
              error = DELETEDMESSAGE;
1696
          }
1697
          throw new NotFound("4874", "Couldn't find an object identified by " + pid.getValue()+". "+error);
1698
          
1699
      }
1700

    
1701
    } catch (RuntimeException e) {
1702
    	  ServiceFailure sf = new ServiceFailure("4872", 
1703
                "Runtime Exception: Couldn't determine if node is allowed: " + 
1704
                e.getMessage());
1705
    	  sf.initCause(e);
1706
        throw sf;
1707
        
1708
    }
1709
      
1710
    return isAllowed;
1711
    
1712
  }
1713

    
1714
  /**
1715
   * Adds a new object to the Node, where the object is a science metadata object.
1716
   * 
1717
   * @param session - the Session object containing the credentials for the Subject
1718
   * @param pid - The object identifier to be created
1719
   * @param object - the object bytes
1720
   * @param sysmeta - the system metadata that describes the object  
1721
   * 
1722
   * @return pid - the object identifier created
1723
   * 
1724
   * @throws InvalidToken
1725
   * @throws ServiceFailure
1726
   * @throws NotAuthorized
1727
   * @throws IdentifierNotUnique
1728
   * @throws UnsupportedType
1729
   * @throws InsufficientResources
1730
   * @throws InvalidSystemMetadata
1731
   * @throws NotImplemented
1732
   * @throws InvalidRequest
1733
   */
1734
  public Identifier create(Session session, Identifier pid, InputStream object,
1735
    SystemMetadata sysmeta) 
1736
    throws InvalidToken, ServiceFailure, NotAuthorized, IdentifierNotUnique, 
1737
    UnsupportedType, InsufficientResources, InvalidSystemMetadata, 
1738
    NotImplemented, InvalidRequest {
1739
       
1740
   // verify the pid is valid format
1741
      if (!isValidIdentifier(pid)) {
1742
          throw new InvalidRequest("4891", "The provided identifier is invalid.");
1743
      }
1744
      // The lock to be used for this identifier
1745
      Lock lock = null;
1746

    
1747
      try {
1748
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1749
          lock.lock();
1750
          // are we allowed?
1751
          boolean isAllowed = false;
1752
          isAllowed = isAdminAuthorized(session);
1753
          
1754
          // additional check if it is the authoritative node if it is not the admin
1755
          if(!isAllowed) {
1756
              isAllowed = isAuthoritativeMNodeAdmin(session, pid);
1757
          }
1758

    
1759
          // proceed if we're called by a CN
1760
          if ( isAllowed ) {
1761
              //check if the series id is legitimate. It uses the same rules of the method registerSystemMetadata
1762
              //checkSidInModifyingSystemMetadata(sysmeta, "4896", "4893");
1763
              Identifier sid = sysmeta.getSeriesId();
1764
              if(sid != null) {
1765
                  if (!isValidIdentifier(sid)) {
1766
                      throw new InvalidRequest("4891", "The series id in the system metadata is invalid in the request.");
1767
                  }
1768
              }
1769
              // create the coordinating node version of the document      
1770
              logMetacat.debug("Locked identifier " + pid.getValue());
1771
              sysmeta.setSerialVersion(BigInteger.ONE);
1772
              sysmeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
1773
              //sysmeta.setArchived(false); // this is a create op, not update
1774
              
1775
              // the CN should have set the origin and authoritative member node fields
1776
              try {
1777
                  sysmeta.getOriginMemberNode().getValue();
1778
                  sysmeta.getAuthoritativeMemberNode().getValue();
1779
                  
1780
              } catch (NullPointerException npe) {
1781
                  throw new InvalidSystemMetadata("4896", 
1782
                      "Both the origin and authoritative member node identifiers need to be set.");
1783
                  
1784
              }
1785
              pid = super.create(session, pid, object, sysmeta);
1786

    
1787
          } else {
1788
              String msg = "The subject listed as " + session.getSubject().getValue() + 
1789
                  " isn't allowed to call create() on a Coordinating Node.";
1790
              logMetacat.info(msg);
1791
              throw new NotAuthorized("1100", msg);
1792
          }
1793
          
1794
      } catch (RuntimeException e) {
1795
          // Convert Hazelcast runtime exceptions to service failures
1796
          String msg = "There was a problem creating the object identified by " +
1797
              pid.getValue() + ". There error message was: " + e.getMessage();
1798
          throw new ServiceFailure("4893", msg);
1799
          
1800
      } finally {
1801
    	  if (lock != null) {
1802
	          lock.unlock();
1803
	          logMetacat.debug("Unlocked identifier " + pid.getValue());
1804
    	  }
1805
      }
1806
      
1807
      return pid;
1808

    
1809
  }
1810

    
1811
  /**
1812
   * Set access for a given object using the object identifier and a Subject
1813
   * under a given Session.
1814
   * 
1815
   * @param session - the Session object containing the credentials for the Subject
1816
   * @param pid - the object identifier for the given object to apply the policy
1817
   * @param policy - the access policy to be applied
1818
   * 
1819
   * @return true if the application of the policy succeeds
1820
   * @throws InvalidToken
1821
   * @throws ServiceFailure
1822
   * @throws NotFound
1823
   * @throws NotAuthorized
1824
   * @throws NotImplemented
1825
   * @throws InvalidRequest
1826
   */
1827
  public boolean setAccessPolicy(Session session, Identifier pid, 
1828
      AccessPolicy accessPolicy, long serialVersion) 
1829
      throws InvalidToken, ServiceFailure, NotFound, NotAuthorized, 
1830
      NotImplemented, InvalidRequest, VersionMismatch {
1831
      
1832
   // do we have a valid pid?
1833
      if (pid == null || pid.getValue().trim().equals("")) {
1834
          throw new InvalidRequest("4402", "The provided identifier was invalid.");
1835
          
1836
      }
1837
      
1838
      String serviceFailureCode = "4430";
1839
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
1840
      if(sid != null) {
1841
          pid = sid;
1842
      }
1843
      // The lock to be used for this identifier
1844
      Lock lock = null;
1845
      SystemMetadata systemMetadata = null;
1846
      
1847
      boolean success = false;
1848
      
1849
      // get the subject
1850
      Subject subject = session.getSubject();
1851
      
1852
      // are we allowed to do this?
1853
      if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
1854
          throw new NotAuthorized("4420", "not allowed by "
1855
                  + subject.getValue() + " on " + pid.getValue());
1856
      }
1857
      
1858
      try {
1859
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1860
          lock.lock();
1861
          logMetacat.debug("Locked identifier " + pid.getValue());
1862

    
1863
          try {
1864
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1865

    
1866
              if ( systemMetadata == null ) {
1867
                  throw new NotFound("4400", "Couldn't find an object identified by " + pid.getValue());
1868
                  
1869
              }
1870
              // does the request have the most current system metadata?
1871
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
1872
                 String msg = "The requested system metadata version number " + 
1873
                     serialVersion + " differs from the current version at " +
1874
                     systemMetadata.getSerialVersion().longValue() +
1875
                     ". Please get the latest copy in order to modify it.";
1876
                 throw new VersionMismatch("4402", msg);
1877
                 
1878
              }
1879
              
1880
          } catch (RuntimeException e) {
1881
              // convert Hazelcast RuntimeException to NotFound
1882
              throw new NotFound("4400", "No record found for: " + pid);
1883
            
1884
          }
1885
              
1886
          // set the access policy
1887
          systemMetadata.setAccessPolicy(accessPolicy);
1888
          
1889
          // update the system metadata
1890
          try {
1891
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
1892
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
1893
              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
1894
              notifyReplicaNodes(systemMetadata);
1895
              
1896
          } catch (RuntimeException e) {
1897
              // convert Hazelcast RuntimeException to ServiceFailure
1898
              throw new ServiceFailure("4430", e.getMessage());
1899
            
1900
          }
1901
          
1902
      } catch (RuntimeException e) {
1903
          throw new ServiceFailure("4430", e.getMessage());
1904
          
1905
      } finally {
1906
          lock.unlock();
1907
          logMetacat.debug("Unlocked identifier " + pid.getValue());
1908
        
1909
      }
1910

    
1911
    
1912
    // TODO: how do we know if the map was persisted?
1913
    success = true;
1914
    
1915
    return success;
1916
  }
1917

    
1918
  /**
1919
   * Full replacement of replication metadata in the system metadata for the 
1920
   * specified object, changes date system metadata modified
1921
   * 
1922
   * @param session - the Session object containing the credentials for the Subject
1923
   * @param pid - the object identifier for the given object to apply the policy
1924
   * @param replica - the replica to be updated
1925
   * @return
1926
   * @throws NotImplemented
1927
   * @throws NotAuthorized
1928
   * @throws ServiceFailure
1929
   * @throws InvalidRequest
1930
   * @throws NotFound
1931
   * @throws VersionMismatch
1932
   */
1933
  @Override
1934
  public boolean updateReplicationMetadata(Session session, Identifier pid,
1935
      Replica replica, long serialVersion) 
1936
      throws NotImplemented, NotAuthorized, ServiceFailure, InvalidRequest,
1937
      NotFound, VersionMismatch {
1938
      
1939
      // The lock to be used for this identifier
1940
      Lock lock = null;
1941
      
1942
      // get the subject
1943
      Subject subject = session.getSubject();
1944
      
1945
      // are we allowed to do this?
1946
      if(session == null) {
1947
          throw new NotAuthorized("4851", "Session cannot be null. It is not authorized for updating the replication metadata of the object "+pid.getValue());
1948
      } else {
1949
          if(!isCNAdmin(session)) {
1950
              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());
1951
        }
1952
      }
1953
      /*try {
1954

    
1955
          // what is the controlling permission?
1956
          if (!isAuthorized(session, pid, Permission.WRITE)) {
1957
              throw new NotAuthorized("4851", "not allowed by "
1958
                      + subject.getValue() + " on " + pid.getValue());
1959
          }
1960

    
1961
        
1962
      } catch (InvalidToken e) {
1963
          throw new NotAuthorized("4851", "not allowed by " + subject.getValue() + 
1964
                  " on " + pid.getValue());  
1965
          
1966
      }*/
1967

    
1968
      SystemMetadata systemMetadata = null;
1969
      try {
1970
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1971
          lock.lock();
1972
          logMetacat.debug("Locked identifier " + pid.getValue());
1973

    
1974
          try {      
1975
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1976

    
1977
              // does the request have the most current system metadata?
1978
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
1979
                 String msg = "The requested system metadata version number " + 
1980
                     serialVersion + " differs from the current version at " +
1981
                     systemMetadata.getSerialVersion().longValue() +
1982
                     ". Please get the latest copy in order to modify it.";
1983
                 throw new VersionMismatch("4855", msg);
1984
              }
1985
              
1986
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
1987
              throw new NotFound("4854", "No record found for: " + pid.getValue() +
1988
                  " : " + e.getMessage());
1989
            
1990
          }
1991
              
1992
          // set the status for the replica
1993
          List<Replica> replicas = systemMetadata.getReplicaList();
1994
          NodeReference replicaNode = replica.getReplicaMemberNode();
1995
          ReplicationStatus replicaStatus = replica.getReplicationStatus();
1996
          int index = 0;
1997
          for (Replica listedReplica: replicas) {
1998
              
1999
              // remove the replica that we are replacing
2000
              if ( replicaNode.getValue().equals(listedReplica.getReplicaMemberNode().getValue())) {
2001
                      // don't allow status to change from COMPLETED to anything other
2002
                      // than INVALIDATED: prevents overwrites from race conditions
2003
                	  if ( !listedReplica.getReplicationStatus().equals(replicaStatus) && 
2004
                	       listedReplica.getReplicationStatus().equals(ReplicationStatus.COMPLETED) &&
2005
            		       !replicaStatus.equals(ReplicationStatus.INVALIDATED) ) {
2006
                	  throw new InvalidRequest("4853", "Status state change from " +
2007
                			  listedReplica.getReplicationStatus() + " to " +
2008
                			  replicaStatus.toString() + "is prohibited for identifier " +
2009
                			  pid.getValue() + " and target node " + 
2010
                			  listedReplica.getReplicaMemberNode().getValue());
2011

    
2012
            	  }
2013
                  replicas.remove(index);
2014
                  break;
2015
                  
2016
              }
2017
              index++;
2018
          }
2019
          
2020
          // add the new replica item
2021
          replicas.add(replica);
2022
          systemMetadata.setReplicaList(replicas);
2023
          
2024
          // update the metadata
2025
          try {
2026
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
2027
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
2028
              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
2029
              
2030
              // inform replica nodes of the change if the status is complete
2031
              if ( replicaStatus.equals(ReplicationStatus.COMPLETED) ) {
2032
            	  notifyReplicaNodes(systemMetadata);
2033
            	  
2034
              }
2035
          } catch (RuntimeException e) {
2036
              logMetacat.info("Unknown RuntimeException thrown: " + e.getCause().getMessage());
2037
              throw new ServiceFailure("4852", e.getMessage());
2038
          
2039
          }
2040
          
2041
      } catch (RuntimeException e) {
2042
          logMetacat.info("Unknown RuntimeException thrown: " + e.getCause().getMessage());
2043
          throw new ServiceFailure("4852", e.getMessage());
2044
      
2045
      } finally {
2046
          lock.unlock();
2047
          logMetacat.debug("Unlocked identifier " + pid.getValue());
2048
          
2049
      }
2050
    
2051
      return true;
2052
      
2053
  }
2054
  
2055
  /**
2056
   * 
2057
   */
2058
  @Override
2059
  public ObjectList listObjects(Session session, Date startTime, 
2060
      Date endTime, ObjectFormatIdentifier formatid, NodeReference nodeId,Identifier identifier,
2061
      Integer start, Integer count)
2062
      throws InvalidRequest, InvalidToken, NotAuthorized, NotImplemented,
2063
      ServiceFailure {
2064

    
2065
      return super.listObjects(session, startTime, endTime, formatid, identifier, nodeId, start, count);
2066
  }
2067

    
2068
  
2069
 	/**
2070
 	 * Returns a list of checksum algorithms that are supported by DataONE.
2071
 	 * @return cal  the list of checksum algorithms
2072
 	 * 
2073
 	 * @throws ServiceFailure
2074
 	 * @throws NotImplemented
2075
 	 */
2076
  @Override
2077
  public ChecksumAlgorithmList listChecksumAlgorithms()
2078
			throws ServiceFailure, NotImplemented {
2079
		ChecksumAlgorithmList cal = new ChecksumAlgorithmList();
2080
		cal.addAlgorithm("MD5");
2081
		cal.addAlgorithm("SHA-1");
2082
		return cal;
2083
		
2084
	}
2085

    
2086
  /**
2087
   * Notify replica Member Nodes of system metadata changes for a given pid
2088
   * 
2089
   * @param currentSystemMetadata - the up to date system metadata
2090
   */
2091
  public void notifyReplicaNodes(SystemMetadata currentSystemMetadata) {
2092
      
2093
      Session session = null;
2094
      List<Replica> replicaList = currentSystemMetadata.getReplicaList();
2095
      MNode mn = null;
2096
      NodeReference replicaNodeRef = null;
2097
      CNode cn = null;
2098
      NodeType nodeType = null;
2099
      List<Node> nodeList = null;
2100
      
2101
      try {
2102
          cn = D1Client.getCN();
2103
          nodeList = cn.listNodes().getNodeList();
2104
          
2105
      } catch (Exception e) { // handle BaseException and other I/O issues
2106
          
2107
          // swallow errors since the call is not critical
2108
          logMetacat.error("Can't inform MNs of system metadata changes due " +
2109
              "to communication issues with the CN: " + e.getMessage());
2110
          
2111
      }
2112
      
2113
      if ( replicaList != null ) {
2114
          
2115
          // iterate through the replicas and inform  MN replica nodes
2116
          for (Replica replica : replicaList) {
2117
              
2118
              replicaNodeRef = replica.getReplicaMemberNode();
2119
              try {
2120
                  if (nodeList != null) {
2121
                      // find the node type
2122
                      for (Node node : nodeList) {
2123
                          if ( node.getIdentifier().getValue().equals(replicaNodeRef.getValue()) ) {
2124
                              nodeType = node.getType();
2125
                              break;
2126
              
2127
                          }
2128
                      }
2129
                  }
2130
              
2131
                  // notify only MNs
2132
                  if (nodeType != null && nodeType == NodeType.MN) {
2133
                      mn = D1Client.getMN(replicaNodeRef);
2134
                      mn.systemMetadataChanged(session, 
2135
                          currentSystemMetadata.getIdentifier(), 
2136
                          currentSystemMetadata.getSerialVersion().longValue(),
2137
                          currentSystemMetadata.getDateSysMetadataModified());
2138
                  }
2139
              
2140
              } catch (Exception e) { // handle BaseException and other I/O issues
2141
              
2142
                  // swallow errors since the call is not critical
2143
                  logMetacat.error("Can't inform "
2144
                          + replicaNodeRef.getValue()
2145
                          + " of system metadata changes due "
2146
                          + "to communication issues with the CN: "
2147
                          + e.getMessage());
2148
              
2149
              }
2150
          }
2151
      }
2152
  }
2153
  
2154
  /**
2155
   * Update the system metadata of the specified pid.
2156
   */
2157
  @Override
2158
  public boolean updateSystemMetadata(Session session, Identifier pid,
2159
          SystemMetadata sysmeta) throws NotImplemented, NotAuthorized,
2160
          ServiceFailure, InvalidRequest, InvalidSystemMetadata, InvalidToken {
2161
   if(sysmeta == null) {
2162
       throw  new InvalidRequest("4863", "The system metadata object should NOT be null in the updateSystemMetadata request.");
2163
   }
2164
   if(pid == null || pid.getValue() == null) {
2165
       throw new InvalidRequest("4863", "Please specify the id in the updateSystemMetadata request ") ;
2166
   }
2167

    
2168
   if (session == null) {
2169
       //TODO: many of the thrown exceptions do not use the correct error codes
2170
       //check these against the docs and correct them
2171
       throw new NotAuthorized("4861", "No Session - could not authorize for updating system metadata." +
2172
               "  If you are not logged in, please do so and retry the request.");
2173
   } else {
2174
         //only CN is allwoed
2175
         if(!isCNAdmin(session)) {
2176
               throw new NotAuthorized("4861", "The client -"+ session.getSubject().getValue()+ "is not authorized for updating the system metadata of the object "+pid.getValue());
2177
         }
2178
   }
2179
    //update the system metadata locally  
2180
    boolean success = super.updateSystemMetadata(session, pid, sysmeta);
2181
    return success;
2182
  }
2183
  
2184
    @Override
2185
    public boolean synchronize(Session session, Identifier pid) throws NotAuthorized, InvalidRequest, NotImplemented{
2186
        throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2187

    
2188
    }
2189

    
2190
	@Override
2191
	public QueryEngineDescription getQueryEngineDescription(Session session,
2192
			String queryEngine) throws InvalidToken, ServiceFailure, NotAuthorized,
2193
			NotImplemented, NotFound {
2194
		throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2195

    
2196
	}
2197
	
2198
	@Override
2199
	public QueryEngineList listQueryEngines(Session session) throws InvalidToken,
2200
			ServiceFailure, NotAuthorized, NotImplemented {
2201
		throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2202

    
2203
	}
2204
	
2205
	@Override
2206
	public InputStream query(Session session, String queryEngine, String query)
2207
			throws InvalidToken, ServiceFailure, NotAuthorized, InvalidRequest,
2208
			NotImplemented, NotFound {
2209
		throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2210

    
2211
	}
2212
	
2213
	@Override
2214
	public Node getCapabilities() throws NotImplemented, ServiceFailure {
2215
		throw new NotImplemented("0000", "The CN capabilities are not stored in Metacat.");
2216
	}
2217

    
2218
}
(1-1/7)