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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
  /**
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   * Constructor, private for singleton access
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   */
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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
129
   * 
130
   * @param session - the Session object containing the credentials for the Subject
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   * @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());
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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
239
   * @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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256
		// 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
				}
295

    
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
			}
311
			  
312
			// check permissions
313
			// TODO: is this necessary?
314
			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
	  } else {
775
	      if(!isCNAdmin(session)) {
776
              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());
777
        }
778
	  }
779
	  
780
	// do we have a valid pid?
781
      if (pid == null || pid.getValue().trim().equals("")) {
782
          throw new InvalidRequest("4730", "The provided identifier was invalid.");
783
          
784
      }
785
      
786
      /*String serviceFailureCode = "4700";
787
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
788
      if(sid != null) {
789
          pid = sid;
790
      }*/
791
      
792
      // The lock to be used for this identifier
793
      Lock lock = null;
794
      
795
      boolean allowed = false;
796
      int replicaEntryIndex = -1;
797
      List<Replica> replicas = null;
798
      // get the subject
799
      Subject subject = session.getSubject();
800
      logMetacat.debug("ReplicationStatus for identifier " + pid.getValue() +
801
          " is " + status.toString());
802
      
803
      SystemMetadata systemMetadata = null;
804

    
805
      try {
806
          lock = HazelcastService.getInstance().getLock(pid.getValue());
807
          lock.lock();
808
          logMetacat.debug("Locked identifier " + pid.getValue());
809

    
810
          try {      
811
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
812

    
813
              // did we get it correctly?
814
              if ( systemMetadata == null ) {
815
                  logMetacat.debug("systemMetadata is null for " + pid.getValue());
816
                  throw new NotFound("4740", "Couldn't find an object identified by " + pid.getValue());
817
                  
818
              }
819
              replicas = systemMetadata.getReplicaList();
820
              int count = 0;
821
              
822
              // was there a failure? log it
823
              if ( failure != null && status.equals(ReplicationStatus.FAILED) ) {
824
                 String msg = "The replication request of the object identified by " + 
825
                     pid.getValue() + " failed.  The error message was " +
826
                     failure.getMessage() + ".";
827
              }
828
              
829
              if (replicas.size() > 0 && replicas != null) {
830
                  // find the target replica index in the replica list
831
                  for (Replica replica : replicas) {
832
                      String replicaNodeStr = replica.getReplicaMemberNode().getValue();
833
                      String targetNodeStr = targetNode.getValue();
834
                      logMetacat.debug("Comparing " + replicaNodeStr + " to " + targetNodeStr);
835
                  
836
                      if (replicaNodeStr.equals(targetNodeStr)) {
837
                          replicaEntryIndex = count;
838
                          logMetacat.debug("replica entry index is: "
839
                                  + replicaEntryIndex);
840
                          break;
841
                      }
842
                      count++;
843
                  
844
                  }
845
              }
846
              // are we allowed to do this? only CNs and target MNs are allowed
847
              CNode cn = D1Client.getCN();
848
              List<Node> nodes = cn.listNodes().getNodeList();
849
              
850
              // find the node in the node list
851
              for ( Node node : nodes ) {
852
                  
853
                  NodeReference nodeReference = node.getIdentifier();
854
                  logMetacat.debug("In setReplicationStatus(), Node reference is: " + 
855
                      nodeReference.getValue());
856
                  
857
                  // allow target MN certs
858
                  if ( targetNode.getValue().equals(nodeReference.getValue() ) &&
859
                      node.getType().equals(NodeType.MN)) {
860
                      List<Subject> nodeSubjects = node.getSubjectList();
861
                      
862
                      // check if the session subject is in the node subject list
863
                      for (Subject nodeSubject : nodeSubjects) {
864
                          logMetacat.debug("In setReplicationStatus(), comparing subjects: " +
865
                                  nodeSubject.getValue() + " and " + subject.getValue());
866
                          if ( nodeSubject.equals(subject) ) { // subject of session == target node subject
867
                              
868
                              // lastly limit to COMPLETED, INVALIDATED,
869
                              // and FAILED status updates from MNs only
870
                              if ( status.equals(ReplicationStatus.COMPLETED) ||
871
                                   status.equals(ReplicationStatus.INVALIDATED) ||
872
                                   status.equals(ReplicationStatus.FAILED)) {
873
                                  allowed = true;
874
                                  break;
875
                                  
876
                              }                              
877
                          }
878
                      }                 
879
                  }
880
              }
881

    
882
              if ( !allowed ) {
883
                  //check for CN admin access
884
                  allowed = isAuthorized(session, pid, Permission.WRITE);
885
                  
886
              }              
887
              
888
              if ( !allowed ) {
889
                  String msg = "The subject identified by "
890
                          + subject.getValue()
891
                          + " does not have permission to set the replication status for "
892
                          + "the replica identified by "
893
                          + targetNode.getValue() + ".";
894
                  logMetacat.info(msg);
895
                  throw new NotAuthorized("4720", msg);
896
                  
897
              }
898

    
899
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
900
            throw new NotFound("4740", "No record found for: " + pid.getValue() +
901
                " : " + e.getMessage());
902
            
903
          }
904
          
905
          Replica targetReplica = new Replica();
906
          // set the status for the replica
907
          if ( replicaEntryIndex != -1 ) {
908
              targetReplica = replicas.get(replicaEntryIndex);
909
              
910
              // don't allow status to change from COMPLETED to anything other
911
              // than INVALIDATED: prevents overwrites from race conditions
912
              if ( targetReplica.getReplicationStatus().equals(ReplicationStatus.COMPLETED) &&
913
            	   !status.equals(ReplicationStatus.INVALIDATED)) {
914
            	  throw new InvalidRequest("4730", "Status state change from " +
915
            			  targetReplica.getReplicationStatus() + " to " +
916
            			  status.toString() + "is prohibited for identifier " +
917
            			  pid.getValue() + " and target node " + 
918
            			  targetReplica.getReplicaMemberNode().getValue());
919
              }
920
              
921
              targetReplica.setReplicationStatus(status);
922
              
923
              logMetacat.debug("Set the replication status for " + 
924
                  targetReplica.getReplicaMemberNode().getValue() + " to " +
925
                  targetReplica.getReplicationStatus() + " for identifier " +
926
                  pid.getValue());
927
              
928
          } else {
929
              // this is a new entry, create it
930
              targetReplica.setReplicaMemberNode(targetNode);
931
              targetReplica.setReplicationStatus(status);
932
              targetReplica.setReplicaVerified(Calendar.getInstance().getTime());
933
              replicas.add(targetReplica);
934
              
935
          }
936
          
937
          systemMetadata.setReplicaList(replicas);
938
                
939
          // update the metadata
940
          try {
941
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
942
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
943
              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
944

    
945
              if ( !status.equals(ReplicationStatus.QUEUED) && 
946
            	   !status.equals(ReplicationStatus.REQUESTED)) {
947
                  
948
                logMetacat.trace("METRICS:\tREPLICATION:\tEND REQUEST:\tPID:\t" + pid.getValue() + 
949
                          "\tNODE:\t" + targetNode.getValue() + 
950
                          "\tSIZE:\t" + systemMetadata.getSize().intValue());
951
                
952
                logMetacat.trace("METRICS:\tREPLICATION:\t" + status.toString().toUpperCase() +
953
                          "\tPID:\t"  + pid.getValue() + 
954
                          "\tNODE:\t" + targetNode.getValue() + 
955
                          "\tSIZE:\t" + systemMetadata.getSize().intValue());
956
              }
957

    
958
              if ( status.equals(ReplicationStatus.FAILED) && failure != null ) {
959
                  logMetacat.warn("Replication failed for identifier " + pid.getValue() +
960
                      " on target node " + targetNode + ". The exception was: " +
961
                      failure.getMessage());
962
              }
963
              
964
			  // update the replica nodes about the completed replica when complete
965
              if (status.equals(ReplicationStatus.COMPLETED)) {
966
				notifyReplicaNodes(systemMetadata);
967
			}
968
          
969
          } catch (RuntimeException e) {
970
              throw new ServiceFailure("4700", e.getMessage());
971
          
972
          }
973
          
974
    } catch (RuntimeException e) {
975
        String msg = "There was a RuntimeException getting the lock for " +
976
            pid.getValue();
977
        logMetacat.info(msg);
978
        
979
    } finally {
980
        lock.unlock();
981
        logMetacat.debug("Unlocked identifier " + pid.getValue());
982
        
983
    }
984
      
985
      return true;
986
  }
987
  
988
/**
989
   * Return the checksum of the object given the identifier 
990
   * 
991
   * @param session - the Session object containing the credentials for the Subject
992
   * @param pid - the object identifier for the given object
993
   * 
994
   * @return checksum - the checksum of the object
995
   * 
996
   * @throws InvalidToken
997
   * @throws ServiceFailure
998
   * @throws NotAuthorized
999
   * @throws NotFound
1000
   * @throws NotImplemented
1001
   */
1002
  @Override
1003
  public Checksum getChecksum(Session session, Identifier pid)
1004
    throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, 
1005
    NotImplemented {
1006
    
1007
	boolean isAuthorized = false;
1008
	try {
1009
		isAuthorized = isAuthorized(session, pid, Permission.READ);
1010
	} catch (InvalidRequest e) {
1011
		throw new ServiceFailure("1410", e.getDescription());
1012
	}  
1013
    if (!isAuthorized) {
1014
        throw new NotAuthorized("1400", Permission.READ + " not allowed on " + pid.getValue());  
1015
    }
1016
    
1017
    SystemMetadata systemMetadata = null;
1018
    Checksum checksum = null;
1019
    
1020
    try {
1021
        systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);        
1022

    
1023
        if (systemMetadata == null ) {
1024
            String error ="";
1025
            String localId = null;
1026
            try {
1027
                localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
1028
              
1029
             } catch (Exception e) {
1030
                logMetacat.warn("Couldn't find the local id for the pid "+pid.getValue());
1031
            }
1032
            
1033
            if(localId != null && EventLog.getInstance().isDeleted(localId)) {
1034
                error = DELETEDMESSAGE;
1035
            } else if (localId == null && EventLog.getInstance().isDeleted(pid.getValue())) {
1036
                error = DELETEDMESSAGE;
1037
            }
1038
            throw new NotFound("1420", "Couldn't find an object identified by " + pid.getValue()+". "+error);
1039
        }
1040
        checksum = systemMetadata.getChecksum();
1041
        
1042
    } catch (RuntimeException e) {
1043
        throw new ServiceFailure("1410", "An error occurred getting the checksum for " + 
1044
            pid.getValue() + ". The error message was: " + e.getMessage());
1045
      
1046
    }
1047
    
1048
    return checksum;
1049
  }
1050

    
1051
  /**
1052
   * Resolve the location of a given object
1053
   * 
1054
   * @param session - the Session object containing the credentials for the Subject
1055
   * @param pid - the object identifier for the given object
1056
   * 
1057
   * @return objectLocationList - the list of nodes known to contain the object
1058
   * 
1059
   * @throws InvalidToken
1060
   * @throws ServiceFailure
1061
   * @throws NotAuthorized
1062
   * @throws NotFound
1063
   * @throws NotImplemented
1064
   */
1065
  @Override
1066
  public ObjectLocationList resolve(Session session, Identifier pid)
1067
    throws InvalidToken, ServiceFailure, NotAuthorized,
1068
    NotFound, NotImplemented {
1069

    
1070
    throw new NotImplemented("4131", "resolve not implemented");
1071

    
1072
  }
1073

    
1074
  /**
1075
   * Metacat does not implement this method at the CN level
1076
   */
1077
  @Override
1078
  public ObjectList search(Session session, String queryType, String query)
1079
    throws InvalidToken, ServiceFailure, NotAuthorized, InvalidRequest,
1080
    NotImplemented {
1081

    
1082
		  throw new NotImplemented("4281", "Metacat does not implement CN.search");
1083
	  
1084
//    ObjectList objectList = null;
1085
//    try {
1086
//        objectList = 
1087
//          IdentifierManager.getInstance().querySystemMetadata(
1088
//              null, //startTime, 
1089
//              null, //endTime,
1090
//              null, //objectFormat, 
1091
//              false, //replicaStatus, 
1092
//              0, //start, 
1093
//              1000 //count
1094
//              );
1095
//        
1096
//    } catch (Exception e) {
1097
//      throw new ServiceFailure("4310", "Error querying system metadata: " + e.getMessage());
1098
//    }
1099
//
1100
//      return objectList;
1101
		  
1102
  }
1103
  
1104
  /**
1105
   * Returns the object format registered in the DataONE Object Format 
1106
   * Vocabulary for the given format identifier
1107
   * 
1108
   * @param fmtid - the identifier of the format requested
1109
   * 
1110
   * @return objectFormat - the object format requested
1111
   * 
1112
   * @throws ServiceFailure
1113
   * @throws NotFound
1114
   * @throws InsufficientResources
1115
   * @throws NotImplemented
1116
   */
1117
  @Override
1118
  public ObjectFormat getFormat(ObjectFormatIdentifier fmtid)
1119
    throws ServiceFailure, NotFound, NotImplemented {
1120
     
1121
      return ObjectFormatService.getInstance().getFormat(fmtid);
1122
      
1123
  }
1124

    
1125
    @Override
1126
    public ObjectFormatIdentifier addFormat(Session session, ObjectFormatIdentifier formatId, ObjectFormat format)
1127
            throws ServiceFailure, NotFound, NotImplemented, NotAuthorized, InvalidToken {
1128

    
1129
        logMetacat.debug("CNodeService.addFormat() called.\n" + 
1130
                "format ID: " + format.getFormatId() + "\n" + 
1131
                "format name: " + format.getFormatName() + "\n" + 
1132
                "format type: " + format.getFormatType() );
1133
        
1134
        // FIXME remove:
1135
        if (true)
1136
            throw new NotImplemented("0000", "Implementation underway... Will need testing too...");
1137
        
1138
        if (!isAdminAuthorized(session))
1139
            throw new NotAuthorized("0000", "Not authorized to call addFormat()");
1140

    
1141
        String separator = ".";
1142
        try {
1143
            separator = PropertyService.getProperty("document.accNumSeparator");
1144
        } catch (PropertyNotFoundException e) {
1145
            logMetacat.warn("Unable to find property \"document.accNumSeparator\"\n" + e.getMessage());
1146
        }
1147

    
1148
        // find pids of last and next ObjectFormatList
1149
        String OBJECT_FORMAT_DOCID = ObjectFormatService.OBJECT_FORMAT_DOCID;
1150
        int lastRev = -1;
1151
        try {
1152
            lastRev = DBUtil.getLatestRevisionInDocumentTable(OBJECT_FORMAT_DOCID);
1153
        } catch (SQLException e) {
1154
            throw new ServiceFailure("0000", "Unable to locate last revision of the object format list.\n" + e.getMessage());
1155
        }
1156
        int nextRev = lastRev + 1;
1157
        String lastDocID = OBJECT_FORMAT_DOCID + separator + lastRev;
1158
        String nextDocID = OBJECT_FORMAT_DOCID + separator + nextRev;
1159
        
1160
        Identifier lastPid = new Identifier();
1161
        lastPid.setValue(lastDocID);
1162
        Identifier nextPid = new Identifier();
1163
        nextPid.setValue(nextDocID);
1164
        
1165
        logMetacat.debug("Last ObjectFormatList document ID: " + lastDocID + "\n" 
1166
                + "Next ObjectFormatList document ID: " + nextDocID);
1167
        
1168
        // add new format to the current ObjectFormatList
1169
        ObjectFormatList objectFormatList = ObjectFormatService.getInstance().listFormats();
1170
        List<ObjectFormat> innerList = objectFormatList.getObjectFormatList();
1171
        innerList.add(format);
1172

    
1173
        // get existing (last) sysmeta and make a copy
1174
        SystemMetadata lastSysmeta = getSystemMetadata(session, lastPid);
1175
        SystemMetadata nextSysmeta = new SystemMetadata();
1176
        try {
1177
            BeanUtils.copyProperties(nextSysmeta, lastSysmeta);
1178
        } catch (IllegalAccessException | InvocationTargetException e) {
1179
            throw new ServiceFailure("0000", "Unable to create system metadata for updated object format list.\n" + e.getMessage());
1180
        }
1181
        
1182
        // create the new object format list, and update the old sysmeta with obsoletedBy
1183
        createNewObjectFormatList(session, lastPid, nextPid, objectFormatList, nextSysmeta);
1184
        updateOldObjectFormatList(session, lastPid, nextPid, lastSysmeta);
1185
        
1186
        // TODO add to ObjectFormatService local cache?
1187
        
1188
        return formatId;
1189
    }
1190

    
1191
    /**
1192
     * Creates the object for the next / updated version of the ObjectFormatList.
1193
     * 
1194
     * @param session
1195
     * @param lastPid
1196
     * @param nextPid
1197
     * @param objectFormatList
1198
     * @param lastSysmeta
1199
     */
1200
    private void createNewObjectFormatList(Session session, Identifier lastPid, Identifier nextPid,
1201
            ObjectFormatList objectFormatList, SystemMetadata lastSysmeta) 
1202
                    throws InvalidToken, ServiceFailure, NotAuthorized, NotImplemented {
1203
        
1204
        PipedInputStream is = new PipedInputStream();
1205
        PipedOutputStream os = null;
1206
        
1207
        try {
1208
            os = new PipedOutputStream(is);
1209
            TypeMarshaller.marshalTypeToOutputStream(objectFormatList, os);
1210
        } catch (JiBXException | IOException e) {
1211
            throw new ServiceFailure("0000", "Unable to marshal object format list.\n" + e.getMessage());
1212
        } finally {
1213
            try {
1214
                os.flush();
1215
                os.close();
1216
            } catch (IOException ioe) {
1217
                throw new ServiceFailure("0000", "Unable to marshal object format list.\n" + ioe.getMessage());
1218
            }
1219
        }
1220
        
1221
        BigInteger docSize = lastSysmeta.getSize();
1222
        try {
1223
            docSize = BigInteger.valueOf(is.available());
1224
        } catch (IOException e) {
1225
            logMetacat.warn("Unable to set an accurate size for the new object format list.", e);
1226
        }
1227
        
1228
        lastSysmeta.setIdentifier(nextPid);
1229
        lastSysmeta.setObsoletes(lastPid);
1230
        lastSysmeta.setSize(docSize); 
1231
        lastSysmeta.setSubmitter(session.getSubject());
1232
        lastSysmeta.setDateUploaded(new Date());
1233
        
1234
        // create new object format list
1235
        try {
1236
            create(session, nextPid, is, lastSysmeta);
1237
        } catch (IdentifierNotUnique | UnsupportedType | InsufficientResources
1238
                | InvalidSystemMetadata | InvalidRequest e) {
1239
            throw new ServiceFailure("0000", "Unable to create() new object format list" + e.getMessage());
1240
        }
1241
    }
1242
  
1243
    /**
1244
     * Updates the SystemMetadata for the old version of the ObjectFormatList
1245
     * by setting the obsoletedBy value to the pid of the new version of the 
1246
     * ObjectFormatList.
1247
     * 
1248
     * @param session
1249
     * @param lastPid
1250
     * @param obsoletedByPid
1251
     * @param lastSysmeta
1252
     * @throws ServiceFailure
1253
     */
1254
    private void updateOldObjectFormatList(Session session, Identifier lastPid, Identifier obsoletedByPid, SystemMetadata lastSysmeta) 
1255
            throws ServiceFailure {
1256
        
1257
        lastSysmeta.setObsoletedBy(obsoletedByPid);
1258
        
1259
        try {
1260
            this.updateSystemMetadata(session, lastPid, lastSysmeta);
1261
        } catch (NotImplemented | NotAuthorized | ServiceFailure | InvalidRequest
1262
                | InvalidSystemMetadata | InvalidToken e) {
1263
            throw new ServiceFailure("0000", "Unable to update metadata of old object format list.\n" + e.getMessage());
1264
        }
1265
    }
1266
  /**
1267
   * Returns a list of all object formats registered in the DataONE Object 
1268
   * Format Vocabulary
1269
    * 
1270
   * @return objectFormatList - The list of object formats registered in 
1271
   *                            the DataONE Object Format Vocabulary
1272
   * 
1273
   * @throws ServiceFailure
1274
   * @throws NotImplemented
1275
   * @throws InsufficientResources
1276
   */
1277
  @Override
1278
  public ObjectFormatList listFormats() 
1279
    throws ServiceFailure, NotImplemented {
1280

    
1281
    return ObjectFormatService.getInstance().listFormats();
1282
  }
1283

    
1284
  /**
1285
   * Returns a list of nodes that have been registered with the DataONE infrastructure
1286
    * 
1287
   * @return nodeList - List of nodes from the registry
1288
   * 
1289
   * @throws ServiceFailure
1290
   * @throws NotImplemented
1291
   */
1292
  @Override
1293
  public NodeList listNodes() 
1294
    throws NotImplemented, ServiceFailure {
1295

    
1296
    throw new NotImplemented("4800", "listNodes not implemented");
1297
  }
1298

    
1299
  /**
1300
   * Provides a mechanism for adding system metadata independently of its 
1301
   * associated object, such as when adding system metadata for data objects.
1302
    * 
1303
   * @param session - the Session object containing the credentials for the Subject
1304
   * @param pid - The identifier of the object to register the system metadata against
1305
   * @param sysmeta - The system metadata to be registered
1306
   * 
1307
   * @return true if the registration succeeds
1308
   * 
1309
   * @throws NotImplemented
1310
   * @throws NotAuthorized
1311
   * @throws ServiceFailure
1312
   * @throws InvalidRequest
1313
   * @throws InvalidSystemMetadata
1314
   */
1315
  @Override
1316
  public Identifier registerSystemMetadata(Session session, Identifier pid,
1317
      SystemMetadata sysmeta) 
1318
      throws NotImplemented, NotAuthorized, ServiceFailure, InvalidRequest, 
1319
      InvalidSystemMetadata {
1320

    
1321
      // The lock to be used for this identifier
1322
      Lock lock = null;
1323

    
1324
      // TODO: control who can call this?
1325
      if (session == null) {
1326
          //TODO: many of the thrown exceptions do not use the correct error codes
1327
          //check these against the docs and correct them
1328
          throw new NotAuthorized("4861", "No Session - could not authorize for registration." +
1329
                  "  If you are not logged in, please do so and retry the request.");
1330
      } else {
1331
          //only CN is allwoed
1332
          if(!isCNAdmin(session)) {
1333
                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());
1334
          }
1335
      }
1336
      // the identifier can't be an SID
1337
      try {
1338
          if(IdentifierManager.getInstance().systemMetadataSIDExists(pid)) {
1339
              throw new InvalidRequest("4863", "The provided identifier "+pid.getValue()+" is a series id which is not allowed.");
1340
          }
1341
      } catch (SQLException sqle) {
1342
          throw new ServiceFailure("4862", "Couldn't determine if the pid "+pid.getValue()+" is a series id since "+sqle.getMessage());
1343
      }
1344
      
1345
      // verify that guid == SystemMetadata.getIdentifier()
1346
      logMetacat.debug("Comparing guid|sysmeta_guid: " + pid.getValue() + 
1347
          "|" + sysmeta.getIdentifier().getValue());
1348
      if (!pid.getValue().equals(sysmeta.getIdentifier().getValue())) {
1349
          throw new InvalidRequest("4863", 
1350
              "The identifier in method call (" + pid.getValue() + 
1351
              ") does not match identifier in system metadata (" +
1352
              sysmeta.getIdentifier().getValue() + ").");
1353
      }
1354
      
1355
      //check if the sid is legitimate in the system metadata
1356
      //checkSidInModifyingSystemMetadata(sysmeta, "4864", "4862");
1357
      Identifier sid = sysmeta.getSeriesId();
1358
      if(sid != null) {
1359
          if (!isValidIdentifier(sid)) {
1360
              throw new InvalidRequest("4863", "The series id in the system metadata is invalid in the request.");
1361
          }
1362
      }
1363

    
1364
      try {
1365
          lock = HazelcastService.getInstance().getLock(sysmeta.getIdentifier().getValue());
1366
          lock.lock();
1367
          logMetacat.debug("Locked identifier " + pid.getValue());
1368
          logMetacat.debug("Checking if identifier exists...");
1369
          // Check that the identifier does not already exist
1370
          if (HazelcastService.getInstance().getSystemMetadataMap().containsKey(pid)) {
1371
              throw new InvalidRequest("4863", 
1372
                  "The identifier is already in use by an existing object.");
1373
          
1374
          }
1375
          
1376
          // insert the system metadata into the object store
1377
          logMetacat.debug("Starting to insert SystemMetadata...");
1378
          try {
1379
              sysmeta.setSerialVersion(BigInteger.ONE);
1380
              sysmeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
1381
              HazelcastService.getInstance().getSystemMetadataMap().put(sysmeta.getIdentifier(), sysmeta);
1382
              
1383
          } catch (RuntimeException e) {
1384
            logMetacat.error("Problem registering system metadata: " + pid.getValue(), e);
1385
              throw new ServiceFailure("4862", "Error inserting system metadata: " + 
1386
                  e.getClass() + ": " + e.getMessage());
1387
              
1388
          }
1389
          
1390
      } catch (RuntimeException e) {
1391
          throw new ServiceFailure("4862", "Error inserting system metadata: " + 
1392
                  e.getClass() + ": " + e.getMessage());
1393
          
1394
      }  finally {
1395
          lock.unlock();
1396
          logMetacat.debug("Unlocked identifier " + pid.getValue());
1397
          
1398
      }
1399

    
1400
      
1401
      logMetacat.debug("Returning from registerSystemMetadata");
1402
      
1403
      try {
1404
    	  String localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
1405
    	  EventLog.getInstance().log(request.getRemoteAddr(), 
1406
    	          request.getHeader("User-Agent"), session.getSubject().getValue(), 
1407
    	          localId, "registerSystemMetadata");
1408
      } catch (McdbDocNotFoundException e) {
1409
    	  // do nothing, no localId to log with
1410
    	  logMetacat.warn("Could not log 'registerSystemMetadata' event because no localId was found for pid: " + pid.getValue());
1411
      } catch (SQLException ee) {
1412
          // do nothing, no localId to log with
1413
          logMetacat.warn("Could not log 'registerSystemMetadata' event because the localId couldn't be identified for pid: " + pid.getValue());
1414
      }
1415
      
1416
      
1417
      return pid;
1418
  }
1419
  
1420
  /**
1421
   * Given an optional scope and format, reserves and returns an identifier 
1422
   * within that scope and format that is unique and will not be 
1423
   * used by any other sessions. 
1424
    * 
1425
   * @param session - the Session object containing the credentials for the Subject
1426
   * @param pid - The identifier of the object to register the system metadata against
1427
   * @param scope - An optional string to be used to qualify the scope of 
1428
   *                the identifier namespace, which is applied differently 
1429
   *                depending on the format requested. If scope is not 
1430
   *                supplied, a default scope will be used.
1431
   * @param format - The optional name of the identifier format to be used, 
1432
   *                  drawn from a DataONE-specific vocabulary of identifier 
1433
   *                 format names, including several common syntaxes such 
1434
   *                 as DOI, LSID, UUID, and LSRN, among others. If the 
1435
   *                 format is not supplied by the caller, the CN service 
1436
   *                 will use a default identifier format, which may change 
1437
   *                 over time.
1438
   * 
1439
   * @return true if the registration succeeds
1440
   * 
1441
   * @throws InvalidToken
1442
   * @throws ServiceFailure
1443
   * @throws NotAuthorized
1444
   * @throws IdentifierNotUnique
1445
   * @throws NotImplemented
1446
   */
1447
  @Override
1448
  public Identifier reserveIdentifier(Session session, Identifier pid)
1449
  throws InvalidToken, ServiceFailure,
1450
        NotAuthorized, IdentifierNotUnique, NotImplemented, InvalidRequest {
1451

    
1452
    throw new NotImplemented("4191", "reserveIdentifier not implemented on this node");
1453
  }
1454
  
1455
  @Override
1456
  public Identifier generateIdentifier(Session session, String scheme, String fragment)
1457
  throws InvalidToken, ServiceFailure,
1458
        NotAuthorized, NotImplemented, InvalidRequest {
1459
    throw new NotImplemented("4191", "generateIdentifier not implemented on this node");
1460
  }
1461
  
1462
  /**
1463
    * Checks whether the pid is reserved by the subject in the session param
1464
    * If the reservation is held on the pid by the subject, we return true.
1465
    * 
1466
   * @param session - the Session object containing the Subject
1467
   * @param pid - The identifier to check
1468
   * 
1469
   * @return true if the reservation exists for the subject/pid
1470
   * 
1471
   * @throws InvalidToken
1472
   * @throws ServiceFailure
1473
   * @throws NotFound - when the pid is not found (in use or in reservation)
1474
   * @throws NotAuthorized - when the subject does not hold a reservation on the pid
1475
   * @throws IdentifierNotUnique - when the pid is in use
1476
   * @throws NotImplemented
1477
   */
1478

    
1479
  @Override
1480
  public boolean hasReservation(Session session, Subject subject, Identifier pid) 
1481
      throws InvalidToken, ServiceFailure, NotFound, NotAuthorized, IdentifierNotUnique, 
1482
      NotImplemented, InvalidRequest {
1483
  
1484
      throw new NotImplemented("4191", "hasReservation not implemented on this node");
1485
  }
1486

    
1487
  /**
1488
   * Changes ownership (RightsHolder) of the specified object to the 
1489
   * subject specified by userId
1490
    * 
1491
   * @param session - the Session object containing the credentials for the Subject
1492
   * @param pid - Identifier of the object to be modified
1493
   * @param userId - The subject that will be taking ownership of the specified object.
1494
   *
1495
   * @return pid - the identifier of the modified object
1496
   * 
1497
   * @throws ServiceFailure
1498
   * @throws InvalidToken
1499
   * @throws NotFound
1500
   * @throws NotAuthorized
1501
   * @throws NotImplemented
1502
   * @throws InvalidRequest
1503
   */  
1504
  @Override
1505
  public Identifier setRightsHolder(Session session, Identifier pid, Subject userId,
1506
      long serialVersion)
1507
      throws InvalidToken, ServiceFailure, NotFound, NotAuthorized,
1508
      NotImplemented, InvalidRequest, VersionMismatch {
1509
      
1510
      // The lock to be used for this identifier
1511
      Lock lock = null;
1512

    
1513
      // get the subject
1514
      Subject subject = session.getSubject();
1515
      
1516
      String serviceFailureCode = "4490";
1517
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
1518
      if(sid != null) {
1519
          pid = sid;
1520
      }
1521
      
1522
      // are we allowed to do this?
1523
      if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
1524
          throw new NotAuthorized("4440", "not allowed by "
1525
                  + subject.getValue() + " on " + pid.getValue());
1526
          
1527
      }
1528
      
1529
      SystemMetadata systemMetadata = null;
1530
      try {
1531
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1532
          lock.lock();
1533
          logMetacat.debug("Locked identifier " + pid.getValue());
1534

    
1535
          try {
1536
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1537
              
1538
              // does the request have the most current system metadata?
1539
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
1540
                 String msg = "The requested system metadata version number " + 
1541
                     serialVersion + " differs from the current version at " +
1542
                     systemMetadata.getSerialVersion().longValue() +
1543
                     ". Please get the latest copy in order to modify it.";
1544
                 throw new VersionMismatch("4443", msg);
1545
              }
1546
              
1547
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
1548
              throw new NotFound("4460", "No record found for: " + pid.getValue());
1549
              
1550
          }
1551
              
1552
          // set the new rights holder
1553
          systemMetadata.setRightsHolder(userId);
1554
          
1555
          // update the metadata
1556
          try {
1557
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
1558
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
1559
              HazelcastService.getInstance().getSystemMetadataMap().put(pid, systemMetadata);
1560
              notifyReplicaNodes(systemMetadata);
1561
              
1562
          } catch (RuntimeException e) {
1563
              throw new ServiceFailure("4490", e.getMessage());
1564
          
1565
          }
1566
          
1567
      } catch (RuntimeException e) {
1568
          throw new ServiceFailure("4490", e.getMessage());
1569
          
1570
      } finally {
1571
          lock.unlock();
1572
          logMetacat.debug("Unlocked identifier " + pid.getValue());
1573
      
1574
      }
1575
      
1576
      return pid;
1577
  }
1578

    
1579
  /**
1580
   * Verify that a replication task is authorized by comparing the target node's
1581
   * Subject (from the X.509 certificate-derived Session) with the list of 
1582
   * subjects in the known, pending replication tasks map.
1583
   * 
1584
   * @param originatingNodeSession - Session information that contains the 
1585
   *                                 identity of the calling user
1586
   * @param targetNodeSubject - Subject identifying the target node
1587
   * @param pid - the identifier of the object to be replicated
1588
   * @param replicatePermission - the execute permission to be granted
1589
   * 
1590
   * @throws ServiceFailure
1591
   * @throws NotImplemented
1592
   * @throws InvalidToken
1593
   * @throws NotAuthorized
1594
   * @throws InvalidRequest
1595
   * @throws NotFound
1596
   */
1597
  @Override
1598
  public boolean isNodeAuthorized(Session originatingNodeSession, 
1599
    Subject targetNodeSubject, Identifier pid) 
1600
    throws NotImplemented, NotAuthorized, InvalidToken, ServiceFailure, 
1601
    NotFound, InvalidRequest {
1602
    
1603
    boolean isAllowed = false;
1604
    SystemMetadata sysmeta = null;
1605
    NodeReference targetNode = null;
1606
    
1607
    try {
1608
      // get the target node reference from the nodes list
1609
      CNode cn = D1Client.getCN();
1610
      List<Node> nodes = cn.listNodes().getNodeList();
1611
      
1612
      if ( nodes != null ) {
1613
        for (Node node : nodes) {
1614
            
1615
        	if (node.getSubjectList() != null) {
1616
        		
1617
	            for (Subject nodeSubject : node.getSubjectList()) {
1618
	            	
1619
	                if ( nodeSubject.equals(targetNodeSubject) ) {
1620
	                    targetNode = node.getIdentifier();
1621
	                    logMetacat.debug("targetNode is : " + targetNode.getValue());
1622
	                    break;
1623
	                }
1624
	            }
1625
        	}
1626
            
1627
            if ( targetNode != null) { break; }
1628
        }
1629
        
1630
      } else {
1631
          String msg = "Couldn't get the node list from the CN";
1632
          logMetacat.debug(msg);
1633
          throw new ServiceFailure("4872", msg);
1634
          
1635
      }
1636
      
1637
      // can't find a node listed with the given subject
1638
      if ( targetNode == null ) {
1639
          String msg = "There is no Member Node registered with a node subject " +
1640
              "matching " + targetNodeSubject.getValue();
1641
          logMetacat.info(msg);
1642
          throw new NotAuthorized("4871", msg);
1643
          
1644
      }
1645
      
1646
      logMetacat.debug("Getting system metadata for identifier " + pid.getValue());
1647
      
1648
      sysmeta = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1649

    
1650
      if ( sysmeta != null ) {
1651
          
1652
          List<Replica> replicaList = sysmeta.getReplicaList();
1653
          
1654
          if ( replicaList != null ) {
1655
              
1656
              // find the replica with the status set to 'requested'
1657
              for (Replica replica : replicaList) {
1658
                  ReplicationStatus status = replica.getReplicationStatus();
1659
                  NodeReference listedNode = replica.getReplicaMemberNode();
1660
                  if ( listedNode != null && targetNode != null ) {
1661
                      logMetacat.debug("Comparing " + listedNode.getValue()
1662
                              + " to " + targetNode.getValue());
1663
                      
1664
                      if (listedNode.getValue().equals(targetNode.getValue())
1665
                              && status.equals(ReplicationStatus.REQUESTED)) {
1666
                          isAllowed = true;
1667
                          break;
1668

    
1669
                      }
1670
                  }
1671
              }
1672
          }
1673
          logMetacat.debug("The " + targetNode.getValue() + " is allowed " +
1674
              "to replicate: " + isAllowed + " for " + pid.getValue());
1675

    
1676
          
1677
      } else {
1678
          logMetacat.debug("System metadata for identifier " + pid.getValue() +
1679
          " is null.");
1680
          String error ="";
1681
          String localId = null;
1682
          try {
1683
              localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
1684
            
1685
           } catch (Exception e) {
1686
              logMetacat.warn("Couldn't find the local id for the pid "+pid.getValue());
1687
          }
1688
          
1689
          if(localId != null && EventLog.getInstance().isDeleted(localId)) {
1690
              error = DELETEDMESSAGE;
1691
          } else if (localId == null && EventLog.getInstance().isDeleted(pid.getValue())) {
1692
              error = DELETEDMESSAGE;
1693
          }
1694
          throw new NotFound("4874", "Couldn't find an object identified by " + pid.getValue()+". "+error);
1695
          
1696
      }
1697

    
1698
    } catch (RuntimeException e) {
1699
    	  ServiceFailure sf = new ServiceFailure("4872", 
1700
                "Runtime Exception: Couldn't determine if node is allowed: " + 
1701
                e.getMessage());
1702
    	  sf.initCause(e);
1703
        throw sf;
1704
        
1705
    }
1706
      
1707
    return isAllowed;
1708
    
1709
  }
1710

    
1711
  /**
1712
   * Adds a new object to the Node, where the object is a science metadata object.
1713
   * 
1714
   * @param session - the Session object containing the credentials for the Subject
1715
   * @param pid - The object identifier to be created
1716
   * @param object - the object bytes
1717
   * @param sysmeta - the system metadata that describes the object  
1718
   * 
1719
   * @return pid - the object identifier created
1720
   * 
1721
   * @throws InvalidToken
1722
   * @throws ServiceFailure
1723
   * @throws NotAuthorized
1724
   * @throws IdentifierNotUnique
1725
   * @throws UnsupportedType
1726
   * @throws InsufficientResources
1727
   * @throws InvalidSystemMetadata
1728
   * @throws NotImplemented
1729
   * @throws InvalidRequest
1730
   */
1731
  public Identifier create(Session session, Identifier pid, InputStream object,
1732
    SystemMetadata sysmeta) 
1733
    throws InvalidToken, ServiceFailure, NotAuthorized, IdentifierNotUnique, 
1734
    UnsupportedType, InsufficientResources, InvalidSystemMetadata, 
1735
    NotImplemented, InvalidRequest {
1736
       
1737
   // verify the pid is valid format
1738
      if (!isValidIdentifier(pid)) {
1739
          throw new InvalidRequest("4891", "The provided identifier is invalid.");
1740
      }
1741
      // The lock to be used for this identifier
1742
      Lock lock = null;
1743

    
1744
      try {
1745
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1746
          lock.lock();
1747
          // are we allowed?
1748
          boolean isAllowed = false;
1749
          isAllowed = isAdminAuthorized(session);
1750
          
1751
          // additional check if it is the authoritative node if it is not the admin
1752
          if(!isAllowed) {
1753
              isAllowed = isAuthoritativeMNodeAdmin(session, pid);
1754
          }
1755

    
1756
          // proceed if we're called by a CN
1757
          if ( isAllowed ) {
1758
              //check if the series id is legitimate. It uses the same rules of the method registerSystemMetadata
1759
              //checkSidInModifyingSystemMetadata(sysmeta, "4896", "4893");
1760
              Identifier sid = sysmeta.getSeriesId();
1761
              if(sid != null) {
1762
                  if (!isValidIdentifier(sid)) {
1763
                      throw new InvalidRequest("4891", "The series id in the system metadata is invalid in the request.");
1764
                  }
1765
              }
1766
              // create the coordinating node version of the document      
1767
              logMetacat.debug("Locked identifier " + pid.getValue());
1768
              sysmeta.setSerialVersion(BigInteger.ONE);
1769
              sysmeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
1770
              //sysmeta.setArchived(false); // this is a create op, not update
1771
              
1772
              // the CN should have set the origin and authoritative member node fields
1773
              try {
1774
                  sysmeta.getOriginMemberNode().getValue();
1775
                  sysmeta.getAuthoritativeMemberNode().getValue();
1776
                  
1777
              } catch (NullPointerException npe) {
1778
                  throw new InvalidSystemMetadata("4896", 
1779
                      "Both the origin and authoritative member node identifiers need to be set.");
1780
                  
1781
              }
1782
              pid = super.create(session, pid, object, sysmeta);
1783

    
1784
          } else {
1785
              String msg = "The subject listed as " + session.getSubject().getValue() + 
1786
                  " isn't allowed to call create() on a Coordinating Node.";
1787
              logMetacat.info(msg);
1788
              throw new NotAuthorized("1100", msg);
1789
          }
1790
          
1791
      } catch (RuntimeException e) {
1792
          // Convert Hazelcast runtime exceptions to service failures
1793
          String msg = "There was a problem creating the object identified by " +
1794
              pid.getValue() + ". There error message was: " + e.getMessage();
1795
          throw new ServiceFailure("4893", msg);
1796
          
1797
      } finally {
1798
    	  if (lock != null) {
1799
	          lock.unlock();
1800
	          logMetacat.debug("Unlocked identifier " + pid.getValue());
1801
    	  }
1802
      }
1803
      
1804
      return pid;
1805

    
1806
  }
1807

    
1808
  /**
1809
   * Set access for a given object using the object identifier and a Subject
1810
   * under a given Session.
1811
   * 
1812
   * @param session - the Session object containing the credentials for the Subject
1813
   * @param pid - the object identifier for the given object to apply the policy
1814
   * @param policy - the access policy to be applied
1815
   * 
1816
   * @return true if the application of the policy succeeds
1817
   * @throws InvalidToken
1818
   * @throws ServiceFailure
1819
   * @throws NotFound
1820
   * @throws NotAuthorized
1821
   * @throws NotImplemented
1822
   * @throws InvalidRequest
1823
   */
1824
  public boolean setAccessPolicy(Session session, Identifier pid, 
1825
      AccessPolicy accessPolicy, long serialVersion) 
1826
      throws InvalidToken, ServiceFailure, NotFound, NotAuthorized, 
1827
      NotImplemented, InvalidRequest, VersionMismatch {
1828
      
1829
   // do we have a valid pid?
1830
      if (pid == null || pid.getValue().trim().equals("")) {
1831
          throw new InvalidRequest("4402", "The provided identifier was invalid.");
1832
          
1833
      }
1834
      
1835
      String serviceFailureCode = "4430";
1836
      Identifier sid = getPIDForSID(pid, serviceFailureCode);
1837
      if(sid != null) {
1838
          pid = sid;
1839
      }
1840
      // The lock to be used for this identifier
1841
      Lock lock = null;
1842
      SystemMetadata systemMetadata = null;
1843
      
1844
      boolean success = false;
1845
      
1846
      // get the subject
1847
      Subject subject = session.getSubject();
1848
      
1849
      // are we allowed to do this?
1850
      if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
1851
          throw new NotAuthorized("4420", "not allowed by "
1852
                  + subject.getValue() + " on " + pid.getValue());
1853
      }
1854
      
1855
      try {
1856
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1857
          lock.lock();
1858
          logMetacat.debug("Locked identifier " + pid.getValue());
1859

    
1860
          try {
1861
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1862

    
1863
              if ( systemMetadata == null ) {
1864
                  throw new NotFound("4400", "Couldn't find an object identified by " + pid.getValue());
1865
                  
1866
              }
1867
              // does the request have the most current system metadata?
1868
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
1869
                 String msg = "The requested system metadata version number " + 
1870
                     serialVersion + " differs from the current version at " +
1871
                     systemMetadata.getSerialVersion().longValue() +
1872
                     ". Please get the latest copy in order to modify it.";
1873
                 throw new VersionMismatch("4402", msg);
1874
                 
1875
              }
1876
              
1877
          } catch (RuntimeException e) {
1878
              // convert Hazelcast RuntimeException to NotFound
1879
              throw new NotFound("4400", "No record found for: " + pid);
1880
            
1881
          }
1882
              
1883
          // set the access policy
1884
          systemMetadata.setAccessPolicy(accessPolicy);
1885
          
1886
          // update the system metadata
1887
          try {
1888
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
1889
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
1890
              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
1891
              notifyReplicaNodes(systemMetadata);
1892
              
1893
          } catch (RuntimeException e) {
1894
              // convert Hazelcast RuntimeException to ServiceFailure
1895
              throw new ServiceFailure("4430", e.getMessage());
1896
            
1897
          }
1898
          
1899
      } catch (RuntimeException e) {
1900
          throw new ServiceFailure("4430", e.getMessage());
1901
          
1902
      } finally {
1903
          lock.unlock();
1904
          logMetacat.debug("Unlocked identifier " + pid.getValue());
1905
        
1906
      }
1907

    
1908
    
1909
    // TODO: how do we know if the map was persisted?
1910
    success = true;
1911
    
1912
    return success;
1913
  }
1914

    
1915
  /**
1916
   * Full replacement of replication metadata in the system metadata for the 
1917
   * specified object, changes date system metadata modified
1918
   * 
1919
   * @param session - the Session object containing the credentials for the Subject
1920
   * @param pid - the object identifier for the given object to apply the policy
1921
   * @param replica - the replica to be updated
1922
   * @return
1923
   * @throws NotImplemented
1924
   * @throws NotAuthorized
1925
   * @throws ServiceFailure
1926
   * @throws InvalidRequest
1927
   * @throws NotFound
1928
   * @throws VersionMismatch
1929
   */
1930
  @Override
1931
  public boolean updateReplicationMetadata(Session session, Identifier pid,
1932
      Replica replica, long serialVersion) 
1933
      throws NotImplemented, NotAuthorized, ServiceFailure, InvalidRequest,
1934
      NotFound, VersionMismatch {
1935
      
1936
      // The lock to be used for this identifier
1937
      Lock lock = null;
1938
      
1939
      // get the subject
1940
      Subject subject = session.getSubject();
1941
      
1942
      // are we allowed to do this?
1943
      if(session == null) {
1944
          throw new NotAuthorized("4851", "Session cannot be null. It is not authorized for updating the replication metadata of the object "+pid.getValue());
1945
      } else {
1946
          if(!isCNAdmin(session)) {
1947
              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());
1948
        }
1949
      }
1950
      /*try {
1951

    
1952
          // what is the controlling permission?
1953
          if (!isAuthorized(session, pid, Permission.WRITE)) {
1954
              throw new NotAuthorized("4851", "not allowed by "
1955
                      + subject.getValue() + " on " + pid.getValue());
1956
          }
1957

    
1958
        
1959
      } catch (InvalidToken e) {
1960
          throw new NotAuthorized("4851", "not allowed by " + subject.getValue() + 
1961
                  " on " + pid.getValue());  
1962
          
1963
      }*/
1964

    
1965
      SystemMetadata systemMetadata = null;
1966
      try {
1967
          lock = HazelcastService.getInstance().getLock(pid.getValue());
1968
          lock.lock();
1969
          logMetacat.debug("Locked identifier " + pid.getValue());
1970

    
1971
          try {      
1972
              systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
1973

    
1974
              // does the request have the most current system metadata?
1975
              if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
1976
                 String msg = "The requested system metadata version number " + 
1977
                     serialVersion + " differs from the current version at " +
1978
                     systemMetadata.getSerialVersion().longValue() +
1979
                     ". Please get the latest copy in order to modify it.";
1980
                 throw new VersionMismatch("4855", msg);
1981
              }
1982
              
1983
          } catch (RuntimeException e) { // Catch is generic since HZ throws RuntimeException
1984
              throw new NotFound("4854", "No record found for: " + pid.getValue() +
1985
                  " : " + e.getMessage());
1986
            
1987
          }
1988
              
1989
          // set the status for the replica
1990
          List<Replica> replicas = systemMetadata.getReplicaList();
1991
          NodeReference replicaNode = replica.getReplicaMemberNode();
1992
          ReplicationStatus replicaStatus = replica.getReplicationStatus();
1993
          int index = 0;
1994
          for (Replica listedReplica: replicas) {
1995
              
1996
              // remove the replica that we are replacing
1997
              if ( replicaNode.getValue().equals(listedReplica.getReplicaMemberNode().getValue())) {
1998
                      // don't allow status to change from COMPLETED to anything other
1999
                      // than INVALIDATED: prevents overwrites from race conditions
2000
                	  if ( !listedReplica.getReplicationStatus().equals(replicaStatus) && 
2001
                	       listedReplica.getReplicationStatus().equals(ReplicationStatus.COMPLETED) &&
2002
            		       !replicaStatus.equals(ReplicationStatus.INVALIDATED) ) {
2003
                	  throw new InvalidRequest("4853", "Status state change from " +
2004
                			  listedReplica.getReplicationStatus() + " to " +
2005
                			  replicaStatus.toString() + "is prohibited for identifier " +
2006
                			  pid.getValue() + " and target node " + 
2007
                			  listedReplica.getReplicaMemberNode().getValue());
2008

    
2009
            	  }
2010
                  replicas.remove(index);
2011
                  break;
2012
                  
2013
              }
2014
              index++;
2015
          }
2016
          
2017
          // add the new replica item
2018
          replicas.add(replica);
2019
          systemMetadata.setReplicaList(replicas);
2020
          
2021
          // update the metadata
2022
          try {
2023
              systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
2024
              systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
2025
              HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
2026
              
2027
              // inform replica nodes of the change if the status is complete
2028
              if ( replicaStatus.equals(ReplicationStatus.COMPLETED) ) {
2029
            	  notifyReplicaNodes(systemMetadata);
2030
            	  
2031
              }
2032
          } catch (RuntimeException e) {
2033
              logMetacat.info("Unknown RuntimeException thrown: " + e.getCause().getMessage());
2034
              throw new ServiceFailure("4852", e.getMessage());
2035
          
2036
          }
2037
          
2038
      } catch (RuntimeException e) {
2039
          logMetacat.info("Unknown RuntimeException thrown: " + e.getCause().getMessage());
2040
          throw new ServiceFailure("4852", e.getMessage());
2041
      
2042
      } finally {
2043
          lock.unlock();
2044
          logMetacat.debug("Unlocked identifier " + pid.getValue());
2045
          
2046
      }
2047
    
2048
      return true;
2049
      
2050
  }
2051
  
2052
  /**
2053
   * 
2054
   */
2055
  @Override
2056
  public ObjectList listObjects(Session session, Date startTime, 
2057
      Date endTime, ObjectFormatIdentifier formatid, NodeReference nodeId,Identifier identifier,
2058
      Integer start, Integer count)
2059
      throws InvalidRequest, InvalidToken, NotAuthorized, NotImplemented,
2060
      ServiceFailure {
2061

    
2062
      return super.listObjects(session, startTime, endTime, formatid, identifier, nodeId, start, count);
2063
  }
2064

    
2065
  
2066
 	/**
2067
 	 * Returns a list of checksum algorithms that are supported by DataONE.
2068
 	 * @return cal  the list of checksum algorithms
2069
 	 * 
2070
 	 * @throws ServiceFailure
2071
 	 * @throws NotImplemented
2072
 	 */
2073
  @Override
2074
  public ChecksumAlgorithmList listChecksumAlgorithms()
2075
			throws ServiceFailure, NotImplemented {
2076
		ChecksumAlgorithmList cal = new ChecksumAlgorithmList();
2077
		cal.addAlgorithm("MD5");
2078
		cal.addAlgorithm("SHA-1");
2079
		return cal;
2080
		
2081
	}
2082

    
2083
  /**
2084
   * Notify replica Member Nodes of system metadata changes for a given pid
2085
   * 
2086
   * @param currentSystemMetadata - the up to date system metadata
2087
   */
2088
  public void notifyReplicaNodes(SystemMetadata currentSystemMetadata) {
2089
      
2090
      Session session = null;
2091
      List<Replica> replicaList = currentSystemMetadata.getReplicaList();
2092
      MNode mn = null;
2093
      NodeReference replicaNodeRef = null;
2094
      CNode cn = null;
2095
      NodeType nodeType = null;
2096
      List<Node> nodeList = null;
2097
      
2098
      try {
2099
          cn = D1Client.getCN();
2100
          nodeList = cn.listNodes().getNodeList();
2101
          
2102
      } catch (Exception e) { // handle BaseException and other I/O issues
2103
          
2104
          // swallow errors since the call is not critical
2105
          logMetacat.error("Can't inform MNs of system metadata changes due " +
2106
              "to communication issues with the CN: " + e.getMessage());
2107
          
2108
      }
2109
      
2110
      if ( replicaList != null ) {
2111
          
2112
          // iterate through the replicas and inform  MN replica nodes
2113
          for (Replica replica : replicaList) {
2114
              
2115
              replicaNodeRef = replica.getReplicaMemberNode();
2116
              try {
2117
                  if (nodeList != null) {
2118
                      // find the node type
2119
                      for (Node node : nodeList) {
2120
                          if ( node.getIdentifier().getValue().equals(replicaNodeRef.getValue()) ) {
2121
                              nodeType = node.getType();
2122
                              break;
2123
              
2124
                          }
2125
                      }
2126
                  }
2127
              
2128
                  // notify only MNs
2129
                  if (nodeType != null && nodeType == NodeType.MN) {
2130
                      mn = D1Client.getMN(replicaNodeRef);
2131
                      mn.systemMetadataChanged(session, 
2132
                          currentSystemMetadata.getIdentifier(), 
2133
                          currentSystemMetadata.getSerialVersion().longValue(),
2134
                          currentSystemMetadata.getDateSysMetadataModified());
2135
                  }
2136
              
2137
              } catch (Exception e) { // handle BaseException and other I/O issues
2138
              
2139
                  // swallow errors since the call is not critical
2140
                  logMetacat.error("Can't inform "
2141
                          + replicaNodeRef.getValue()
2142
                          + " of system metadata changes due "
2143
                          + "to communication issues with the CN: "
2144
                          + e.getMessage());
2145
              
2146
              }
2147
          }
2148
      }
2149
  }
2150
  
2151
  /**
2152
   * Update the system metadata of the specified pid.
2153
   */
2154
  @Override
2155
  public boolean updateSystemMetadata(Session session, Identifier pid,
2156
          SystemMetadata sysmeta) throws NotImplemented, NotAuthorized,
2157
          ServiceFailure, InvalidRequest, InvalidSystemMetadata, InvalidToken {
2158
   if(sysmeta == null) {
2159
       throw  new InvalidRequest("4863", "The system metadata object should NOT be null in the updateSystemMetadata request.");
2160
   }
2161
   if(pid == null || pid.getValue() == null) {
2162
       throw new InvalidRequest("4863", "Please specify the id in the updateSystemMetadata request ") ;
2163
   }
2164

    
2165
   if (session == null) {
2166
       //TODO: many of the thrown exceptions do not use the correct error codes
2167
       //check these against the docs and correct them
2168
       throw new NotAuthorized("4861", "No Session - could not authorize for updating system metadata." +
2169
               "  If you are not logged in, please do so and retry the request.");
2170
   } else {
2171
         //only CN is allwoed
2172
         if(!isCNAdmin(session)) {
2173
               throw new NotAuthorized("4861", "The client -"+ session.getSubject().getValue()+ "is not authorized for updating the system metadata of the object "+pid.getValue());
2174
         }
2175
   }
2176
    //update the system metadata locally  
2177
    boolean success = super.updateSystemMetadata(session, pid, sysmeta);
2178
    return success;
2179
  }
2180
  
2181
    @Override
2182
    public boolean synchronize(Session session, Identifier pid) throws NotAuthorized, InvalidRequest, NotImplemented{
2183
        throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2184

    
2185
    }
2186

    
2187
	@Override
2188
	public QueryEngineDescription getQueryEngineDescription(Session session,
2189
			String queryEngine) throws InvalidToken, ServiceFailure, NotAuthorized,
2190
			NotImplemented, NotFound {
2191
		throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2192

    
2193
	}
2194
	
2195
	@Override
2196
	public QueryEngineList listQueryEngines(Session session) throws InvalidToken,
2197
			ServiceFailure, NotAuthorized, NotImplemented {
2198
		throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2199

    
2200
	}
2201
	
2202
	@Override
2203
	public InputStream query(Session session, String queryEngine, String query)
2204
			throws InvalidToken, ServiceFailure, NotAuthorized, InvalidRequest,
2205
			NotImplemented, NotFound {
2206
		throw new NotImplemented("0000", "CN query services are not implemented in Metacat.");
2207

    
2208
	}
2209
	
2210
	@Override
2211
	public Node getCapabilities() throws NotImplemented, ServiceFailure {
2212
		throw new NotImplemented("0000", "The CN capabilities are not stored in Metacat.");
2213
	}
2214

    
2215
}
(1-1/7)