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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.math.BigInteger;
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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.Set;
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import javax.servlet.http.HttpServletRequest;
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import org.apache.commons.io.IOUtils;
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import org.apache.log4j.Logger;
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import org.dataone.client.CNode;
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import org.dataone.client.D1Client;
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import org.dataone.service.cn.v1.CNAuthorization;
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import org.dataone.service.cn.v1.CNCore;
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import org.dataone.service.cn.v1.CNRead;
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import org.dataone.service.cn.v1.CNReplication;
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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.types.v1.AccessPolicy;
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import org.dataone.service.types.v1.Checksum;
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import org.dataone.service.types.v1.Identifier;
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import org.dataone.service.types.v1.Node;
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import org.dataone.service.types.v1.NodeList;
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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.ObjectFormat;
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import org.dataone.service.types.v1.ObjectFormatIdentifier;
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import org.dataone.service.types.v1.ObjectFormatList;
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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.SystemMetadata;
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import org.dataone.service.types.v1.util.ChecksumUtil;
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import org.dataone.service.util.Constants;
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import com.hazelcast.query.SqlPredicate;
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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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/**
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* 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.
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*
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*/
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public class CNodeService extends D1NodeService implements CNAuthorization,
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CNCore, CNRead, CNReplication {
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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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}
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/**
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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);
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}
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/**
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* Set the replication policy for an object given the object identifier
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*
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* @param session - the Session object containing the credentials for the Subject
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* @param pid - the object identifier for the given object
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* @param policy - the replication policy to be applied
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*
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* @return true or false
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*
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* @throws NotImplemented
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* @throws NotAuthorized
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* @throws ServiceFailure
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* @throws InvalidRequest
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*
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*/
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@Override
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public boolean setReplicationPolicy(Session session, Identifier pid,
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ReplicationPolicy policy, long serialVersion)
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throws NotImplemented, NotFound, NotAuthorized, ServiceFailure,
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InvalidRequest, InvalidToken {
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// get the subject
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Subject subject = session.getSubject();
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// are we allowed to do this?
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if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
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throw new NotAuthorized("4881", Permission.CHANGE_PERMISSION +
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" not allowed by " + subject.getValue() + " on " + pid.getValue());
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}
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SystemMetadata systemMetadata = null;
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try {
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HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
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systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
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// does the request have the most current system metadata?
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if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
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String msg = "The requested system metadata version number " +
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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.";
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throw new InvalidRequest("4883", msg);
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}
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} catch (Exception e) { // Catch is generic since HZ throws RuntimeException
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throw new NotFound("4884", "No record found for: " + pid.getValue());
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}
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// set the new policy
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systemMetadata.setReplicationPolicy(policy);
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// update the metadata
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try {
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systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
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systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
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HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
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HazelcastService.getInstance().getSystemMetadataMap().unlock(systemMetadata.getIdentifier());
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} catch (Exception e) {
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throw new ServiceFailure("4882", e.getMessage());
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} finally {
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HazelcastService.getInstance().getSystemMetadataMap().unlock(systemMetadata.getIdentifier());
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}
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return true;
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}
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/**
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* Set the replication status for an object given the object identifier
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*
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* @param session - the Session object containing the credentials for the Subject
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* @param pid - the object identifier for the given object
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* @param status - the replication status to be applied
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*
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* @return true or false
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*
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* @throws NotImplemented
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* @throws NotAuthorized
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* @throws ServiceFailure
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* @throws InvalidRequest
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* @throws InvalidToken
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* @throws NotFound
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*
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*/
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@Override
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public boolean setReplicationStatus(Session session, Identifier pid,
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NodeReference targetNode, ReplicationStatus status, long serialVersion)
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throws ServiceFailure, NotImplemented, InvalidToken, NotAuthorized,
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InvalidRequest, NotFound {
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// get the subject
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Subject subject = session.getSubject();
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// are we allowed to do this?
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if (!isAuthorized(session, pid, Permission.WRITE)) {
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throw new NotAuthorized("4720", Permission.WRITE + " not allowed by " +
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subject.getValue() + " on " + pid.getValue());
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}
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SystemMetadata systemMetadata = null;
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try {
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HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
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systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
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// does the request have the most current system metadata?
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if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
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String msg = "The requested system metadata version number " +
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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.";
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throw new InvalidRequest("4730", msg);
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}
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} catch (Exception e) { // Catch is generic since HZ throws RuntimeException
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throw new NotFound("4740", "No record found for: " + pid.getValue() +
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" : " + e.getMessage());
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}
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// set the status for the replica
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List<Replica> replicas = systemMetadata.getReplicaList();
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for (Replica replica: replicas) {
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if (replica.getReplicaMemberNode().getValue().equals(targetNode.getValue())) {
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replica.setReplicationStatus(status);
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}
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}
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// [re]set the list -- redundant?
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systemMetadata.setReplicaList(replicas);
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// update the metadata
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try {
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systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
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systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
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HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
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HazelcastService.getInstance().getSystemMetadataMap().unlock(systemMetadata.getIdentifier());
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} catch (Exception e) {
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throw new ServiceFailure("4700", e.getMessage());
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} finally {
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HazelcastService.getInstance().getSystemMetadataMap().unlock(systemMetadata.getIdentifier());
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}
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return true;
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}
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/**
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* Test that the specified relationship between pidOfSubject and pidOfObject exists
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*
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* @param session - the Session object containing the credentials for the Subject
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* @param node - the node information for the given node be modified
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*
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* @return true if the relationship exists
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*
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* @throws InvalidToken
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* @throws ServiceFailure
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* @throws NotAuthorized
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* @throws NotFound
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* @throws InvalidRequest
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* @throws NotImplemented
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*/
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@Override
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public boolean assertRelation(Session session, Identifier pidOfSubject,
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String relationship, Identifier pidOfObject)
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throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
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InvalidRequest, NotImplemented {
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boolean asserted = false;
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// are we allowed to do this?
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if (!isAuthorized(session, pidOfSubject, Permission.READ)) {
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throw new NotAuthorized("4881", Permission.READ + " not allowed on " + pidOfSubject.getValue());
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}
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SystemMetadata systemMetadata = null;
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try {
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HazelcastService.getInstance().getSystemMetadataMap().lock(pidOfSubject);
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systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pidOfSubject);
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// check relationships
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// TODO: use ORE map
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if (relationship.equalsIgnoreCase("describes")) {
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}
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if (relationship.equalsIgnoreCase("describedBy")) {
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}
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if (relationship.equalsIgnoreCase("derivedFrom")) {
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}
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if (relationship.equalsIgnoreCase("obsoletes")) {
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Identifier pid = systemMetadata.getObsoletes();
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if (pid.getValue().equals(pidOfObject.getValue())) {
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asserted = true;
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}
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//return systemMetadata.getObsoleteList().contains(pidOfObject);
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}
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if (relationship.equalsIgnoreCase("obsoletedBy")) {
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Identifier pid = systemMetadata.getObsoletedBy();
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if (pid.getValue().equals(pidOfObject.getValue())) {
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asserted = true;
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}
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//return systemMetadata.getObsoletedByList().contains(pidOfObject);
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}
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HazelcastService.getInstance().getSystemMetadataMap().unlock(pidOfSubject);
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} catch (Exception e) {
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throw new ServiceFailure("4270", "Could not assert relation for: " +
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pidOfSubject.getValue() +
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". The error message was: " + e.getMessage());
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} finally {
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HazelcastService.getInstance().getSystemMetadataMap().unlock(pidOfSubject);
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}
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return asserted;
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}
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/**
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* Return the checksum of the object given the identifier
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*
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* @param session - the Session object containing the credentials for the Subject
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* @param pid - the object identifier for the given object
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*
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* @return checksum - the checksum of the object
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*
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* @throws InvalidToken
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* @throws ServiceFailure
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* @throws NotAuthorized
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* @throws NotFound
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* @throws NotImplemented
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359
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*/
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360
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@Override
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361
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public Checksum getChecksum(Session session, Identifier pid)
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throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
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NotImplemented {
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364
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if (!isAuthorized(session, pid, Permission.READ)) {
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throw new NotAuthorized("1400", Permission.READ + " not allowed on " + pid.getValue());
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}
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368
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|
369
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SystemMetadata systemMetadata = null;
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Checksum checksum = null;
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371
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try {
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HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
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systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
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checksum = systemMetadata.getChecksum();
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HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
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377
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378
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} catch (Exception e) {
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throw new ServiceFailure("1410", "An error occurred getting the checksum for " +
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pid.getValue() + ". The error message was: " + e.getMessage());
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381
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382
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} finally {
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HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
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384
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385
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}
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386
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387
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return checksum;
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388
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}
|
389
|
|
390
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/**
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391
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* Resolve the location of a given object
|
392
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*
|
393
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* @param session - the Session object containing the credentials for the Subject
|
394
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* @param pid - the object identifier for the given object
|
395
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*
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396
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* @return objectLocationList - the list of nodes known to contain the object
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397
|
*
|
398
|
* @throws InvalidToken
|
399
|
* @throws ServiceFailure
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400
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* @throws NotAuthorized
|
401
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* @throws NotFound
|
402
|
* @throws NotImplemented
|
403
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*/
|
404
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@Override
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405
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public ObjectLocationList resolve(Session session, Identifier pid)
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406
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throws InvalidToken, ServiceFailure, NotAuthorized,
|
407
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NotFound, NotImplemented {
|
408
|
|
409
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throw new NotImplemented("4131", "resolve not implemented");
|
410
|
|
411
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}
|
412
|
|
413
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/**
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414
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* Search the metadata catalog for identifiers that match the criteria
|
415
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*
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416
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* @param session - the Session object containing the credentials for the Subject
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417
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* @param queryType - An identifier for the type of query expression
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418
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* provided in the query
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419
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* @param query - The criteria for matching the characteristics of the
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420
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* metadata objects of interest
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421
|
*
|
422
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* @return objectList - the list of objects matching the criteria
|
423
|
*
|
424
|
* @throws InvalidToken
|
425
|
* @throws ServiceFailure
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426
|
* @throws NotAuthorized
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427
|
* @throws InvalidRequest
|
428
|
* @throws NotImplemented
|
429
|
*/
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430
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@Override
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431
|
public ObjectList search(Session session, String queryType, String query)
|
432
|
throws InvalidToken, ServiceFailure, NotAuthorized, InvalidRequest,
|
433
|
NotImplemented {
|
434
|
|
435
|
ObjectList objectList = null;
|
436
|
try {
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437
|
objectList =
|
438
|
IdentifierManager.getInstance().querySystemMetadata(
|
439
|
null, //startTime,
|
440
|
null, //endTime,
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441
|
null, //objectFormat,
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442
|
false, //replicaStatus,
|
443
|
0, //start,
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444
|
-1 //count
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445
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);
|
446
|
|
447
|
} catch (Exception e) {
|
448
|
throw new ServiceFailure("4310", "Error querying system metadata: " + e.getMessage());
|
449
|
}
|
450
|
|
451
|
return objectList;
|
452
|
|
453
|
//throw new NotImplemented("4281", "search not implemented");
|
454
|
|
455
|
// the code block below is from an older implementation
|
456
|
|
457
|
/* This block commented out because of the EcoGrid circular dependency.
|
458
|
* For now, query will not be supported until the circularity can be
|
459
|
* resolved, probably by moving the ecogrid query syntax transformers
|
460
|
* directly into the Metacat codebase. MBJ 2010-02-03
|
461
|
|
462
|
try {
|
463
|
EcogridQueryParser parser = new EcogridQueryParser(request
|
464
|
.getReader());
|
465
|
parser.parseXML();
|
466
|
QueryType queryType = parser.getEcogridQuery();
|
467
|
EcogridJavaToMetacatJavaQueryTransformer queryTransformer =
|
468
|
new EcogridJavaToMetacatJavaQueryTransformer();
|
469
|
QuerySpecification metacatQuery = queryTransformer
|
470
|
.transform(queryType);
|
471
|
|
472
|
DBQuery metacat = new DBQuery();
|
473
|
|
474
|
boolean useXMLIndex = (new Boolean(PropertyService
|
475
|
.getProperty("database.usexmlindex"))).booleanValue();
|
476
|
String xmlquery = "query"; // we don't care the query in resultset,
|
477
|
// the query can be anything
|
478
|
PrintWriter out = null; // we don't want metacat result, so set out null
|
479
|
|
480
|
// parameter: queryspecification, user, group, usingIndexOrNot
|
481
|
StringBuffer result = metacat.createResultDocument(xmlquery,
|
482
|
metacatQuery, out, username, groupNames, useXMLIndex);
|
483
|
|
484
|
// create result set transfer
|
485
|
String saxparser = PropertyService.getProperty("xml.saxparser");
|
486
|
MetacatResultsetParser metacatResultsetParser = new MetacatResultsetParser(
|
487
|
new StringReader(result.toString()), saxparser, queryType
|
488
|
.getNamespace().get_value());
|
489
|
ResultsetType records = metacatResultsetParser.getEcogridResult();
|
490
|
|
491
|
System.out
|
492
|
.println(EcogridResultsetTransformer.toXMLString(records));
|
493
|
response.setContentType("text/xml");
|
494
|
out = response.getWriter();
|
495
|
out.print(EcogridResultsetTransformer.toXMLString(records));
|
496
|
|
497
|
} catch (Exception e) {
|
498
|
e.printStackTrace();
|
499
|
}*/
|
500
|
|
501
|
|
502
|
}
|
503
|
|
504
|
/**
|
505
|
* Returns the object format registered in the DataONE Object Format
|
506
|
* Vocabulary for the given format identifier
|
507
|
*
|
508
|
* @param fmtid - the identifier of the format requested
|
509
|
*
|
510
|
* @return objectFormat - the object format requested
|
511
|
*
|
512
|
* @throws ServiceFailure
|
513
|
* @throws NotFound
|
514
|
* @throws InsufficientResources
|
515
|
* @throws NotImplemented
|
516
|
*/
|
517
|
@Override
|
518
|
public ObjectFormat getFormat(ObjectFormatIdentifier fmtid)
|
519
|
throws ServiceFailure, NotFound, InsufficientResources,
|
520
|
NotImplemented {
|
521
|
|
522
|
return ObjectFormatService.getInstance().getFormat(fmtid);
|
523
|
|
524
|
}
|
525
|
|
526
|
/**
|
527
|
* Returns a list of all object formats registered in the DataONE Object
|
528
|
* Format Vocabulary
|
529
|
*
|
530
|
* @return objectFormatList - The list of object formats registered in
|
531
|
* the DataONE Object Format Vocabulary
|
532
|
*
|
533
|
* @throws ServiceFailure
|
534
|
* @throws NotImplemented
|
535
|
* @throws InsufficientResources
|
536
|
*/
|
537
|
@Override
|
538
|
public ObjectFormatList listFormats()
|
539
|
throws ServiceFailure, InsufficientResources,
|
540
|
NotImplemented {
|
541
|
|
542
|
return ObjectFormatService.getInstance().listFormats();
|
543
|
}
|
544
|
|
545
|
/**
|
546
|
* Returns a list of nodes that have been registered with the DataONE infrastructure
|
547
|
*
|
548
|
* @return nodeList - List of nodes from the registry
|
549
|
*
|
550
|
* @throws ServiceFailure
|
551
|
* @throws NotImplemented
|
552
|
*/
|
553
|
@Override
|
554
|
public NodeList listNodes()
|
555
|
throws NotImplemented, ServiceFailure {
|
556
|
|
557
|
throw new NotImplemented("4800", "listNodes not implemented");
|
558
|
}
|
559
|
|
560
|
/**
|
561
|
* Provides a mechanism for adding system metadata independently of its
|
562
|
* associated object, such as when adding system metadata for data objects.
|
563
|
*
|
564
|
* @param session - the Session object containing the credentials for the Subject
|
565
|
* @param pid - The identifier of the object to register the system metadata against
|
566
|
* @param sysmeta - The system metadata to be registered
|
567
|
*
|
568
|
* @return true if the registration succeeds
|
569
|
*
|
570
|
* @throws NotImplemented
|
571
|
* @throws NotAuthorized
|
572
|
* @throws ServiceFailure
|
573
|
* @throws InvalidRequest
|
574
|
* @throws InvalidSystemMetadata
|
575
|
*/
|
576
|
@Override
|
577
|
public Identifier registerSystemMetadata(Session session, Identifier pid,
|
578
|
SystemMetadata sysmeta)
|
579
|
throws NotImplemented, NotAuthorized, ServiceFailure, InvalidRequest,
|
580
|
InvalidSystemMetadata {
|
581
|
|
582
|
// TODO: control who can call this?
|
583
|
if (session == null) {
|
584
|
//TODO: many of the thrown exceptions do not use the correct error codes
|
585
|
//check these against the docs and correct them
|
586
|
throw new NotAuthorized("4861", "No Session - could not authorize for registration." +
|
587
|
" If you are not logged in, please do so and retry the request.");
|
588
|
}
|
589
|
|
590
|
// verify that guid == SystemMetadata.getIdentifier()
|
591
|
logMetacat.debug("Comparing guid|sysmeta_guid: " + pid.getValue() +
|
592
|
"|" + sysmeta.getIdentifier().getValue());
|
593
|
if (!pid.getValue().equals(sysmeta.getIdentifier().getValue())) {
|
594
|
throw new InvalidRequest("4863",
|
595
|
"The identifier in method call (" + pid.getValue() +
|
596
|
") does not match identifier in system metadata (" +
|
597
|
sysmeta.getIdentifier().getValue() + ").");
|
598
|
}
|
599
|
|
600
|
logMetacat.debug("Checking if identifier exists...");
|
601
|
// Check that the identifier does not already exist
|
602
|
if (HazelcastService.getInstance().getSystemMetadataMap().containsKey(pid)) {
|
603
|
throw new InvalidRequest("4863",
|
604
|
"The identifier is already in use by an existing object.");
|
605
|
|
606
|
}
|
607
|
|
608
|
// insert the system metadata into the object store
|
609
|
logMetacat.debug("Starting to insert SystemMetadata...");
|
610
|
try {
|
611
|
HazelcastService.getInstance().getSystemMetadataMap().lock(sysmeta.getIdentifier());
|
612
|
sysmeta.setSerialVersion(BigInteger.ONE);
|
613
|
sysmeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
|
614
|
HazelcastService.getInstance().getSystemMetadataMap().put(sysmeta.getIdentifier(), sysmeta);
|
615
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(sysmeta.getIdentifier());
|
616
|
|
617
|
} catch (Exception e) {
|
618
|
logMetacat.error("Problem registering system metadata: " + pid.getValue(), e);
|
619
|
throw new ServiceFailure("4862", "Error inserting system metadata: " +
|
620
|
e.getClass() + ": " + e.getMessage());
|
621
|
|
622
|
} finally {
|
623
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(sysmeta.getIdentifier());
|
624
|
|
625
|
}
|
626
|
|
627
|
logMetacat.debug("Returning from registerSystemMetadata");
|
628
|
EventLog.getInstance().log(request.getRemoteAddr(),
|
629
|
request.getHeader("User-Agent"), session.getSubject().getValue(),
|
630
|
pid.getValue(), "registerSystemMetadata");
|
631
|
return pid;
|
632
|
}
|
633
|
|
634
|
/**
|
635
|
* Given an optional scope and format, reserves and returns an identifier
|
636
|
* within that scope and format that is unique and will not be
|
637
|
* used by any other sessions.
|
638
|
*
|
639
|
* @param session - the Session object containing the credentials for the Subject
|
640
|
* @param pid - The identifier of the object to register the system metadata against
|
641
|
* @param scope - An optional string to be used to qualify the scope of
|
642
|
* the identifier namespace, which is applied differently
|
643
|
* depending on the format requested. If scope is not
|
644
|
* supplied, a default scope will be used.
|
645
|
* @param format - The optional name of the identifier format to be used,
|
646
|
* drawn from a DataONE-specific vocabulary of identifier
|
647
|
* format names, including several common syntaxes such
|
648
|
* as DOI, LSID, UUID, and LSRN, among others. If the
|
649
|
* format is not supplied by the caller, the CN service
|
650
|
* will use a default identifier format, which may change
|
651
|
* over time.
|
652
|
*
|
653
|
* @return true if the registration succeeds
|
654
|
*
|
655
|
* @throws InvalidToken
|
656
|
* @throws ServiceFailure
|
657
|
* @throws NotAuthorized
|
658
|
* @throws IdentifierNotUnique
|
659
|
* @throws NotImplemented
|
660
|
*/
|
661
|
@Override
|
662
|
public Identifier reserveIdentifier(Session session, Identifier pid)
|
663
|
throws InvalidToken, ServiceFailure,
|
664
|
NotAuthorized, IdentifierNotUnique, NotImplemented, InvalidRequest {
|
665
|
|
666
|
throw new NotImplemented("4191", "reserveIdentifier not implemented on this node");
|
667
|
}
|
668
|
|
669
|
@Override
|
670
|
public Identifier generateIdentifier(Session session, String scheme, String fragment)
|
671
|
throws InvalidToken, ServiceFailure,
|
672
|
NotAuthorized, NotImplemented, InvalidRequest {
|
673
|
throw new NotImplemented("4191", "generateIdentifier not implemented on this node");
|
674
|
}
|
675
|
|
676
|
/**
|
677
|
* Checks whether the pid is reserved by the subject in the session param
|
678
|
* If the reservation is held on the pid by the subject, we return true.
|
679
|
*
|
680
|
* @param session - the Session object containing the Subject
|
681
|
* @param pid - The identifier to check
|
682
|
*
|
683
|
* @return true if the reservation exists for the subject/pid
|
684
|
*
|
685
|
* @throws InvalidToken
|
686
|
* @throws ServiceFailure
|
687
|
* @throws NotFound - when the pid is not found (in use or in reservation)
|
688
|
* @throws NotAuthorized - when the subject does not hold a reservation on the pid
|
689
|
* @throws IdentifierNotUnique - when the pid is in use
|
690
|
* @throws NotImplemented
|
691
|
*/
|
692
|
|
693
|
@Override
|
694
|
public boolean hasReservation(Session session, Identifier pid)
|
695
|
throws InvalidToken, ServiceFailure, NotFound, NotAuthorized, IdentifierNotUnique,
|
696
|
NotImplemented, InvalidRequest {
|
697
|
|
698
|
throw new NotImplemented("4191", "hasReservation not implemented on this node");
|
699
|
}
|
700
|
|
701
|
/**
|
702
|
* Changes ownership (RightsHolder) of the specified object to the
|
703
|
* subject specified by userId
|
704
|
*
|
705
|
* @param session - the Session object containing the credentials for the Subject
|
706
|
* @param pid - Identifier of the object to be modified
|
707
|
* @param userId - The subject that will be taking ownership of the specified object.
|
708
|
*
|
709
|
* @return pid - the identifier of the modified object
|
710
|
*
|
711
|
* @throws ServiceFailure
|
712
|
* @throws InvalidToken
|
713
|
* @throws NotFound
|
714
|
* @throws NotAuthorized
|
715
|
* @throws NotImplemented
|
716
|
* @throws InvalidRequest
|
717
|
*/
|
718
|
@Override
|
719
|
public Identifier setOwner(Session session, Identifier pid, Subject userId,
|
720
|
long serialVersion)
|
721
|
throws InvalidToken, ServiceFailure, NotFound, NotAuthorized,
|
722
|
NotImplemented, InvalidRequest {
|
723
|
|
724
|
// get the subject
|
725
|
Subject subject = session.getSubject();
|
726
|
|
727
|
// are we allowed to do this?
|
728
|
if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
|
729
|
throw new NotAuthorized("4440", "not allowed by " + subject.getValue() + " on " + pid.getValue());
|
730
|
}
|
731
|
|
732
|
SystemMetadata systemMetadata = null;
|
733
|
try {
|
734
|
HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
|
735
|
systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
|
736
|
|
737
|
// does the request have the most current system metadata?
|
738
|
if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
|
739
|
String msg = "The requested system metadata version number " +
|
740
|
serialVersion + "differs from the current version at " +
|
741
|
systemMetadata.getSerialVersion().longValue() +
|
742
|
" Please get the latest copy in order to modify it.";
|
743
|
throw new InvalidRequest("4442", msg);
|
744
|
}
|
745
|
|
746
|
} catch (Exception e) { // Catch is generic since HZ throws RuntimeException
|
747
|
throw new NotFound("4460", "No record found for: " + pid.getValue());
|
748
|
|
749
|
}
|
750
|
|
751
|
// set the new rights holder
|
752
|
systemMetadata.setRightsHolder(userId);
|
753
|
|
754
|
// update the metadata
|
755
|
try {
|
756
|
systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
|
757
|
systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
|
758
|
HazelcastService.getInstance().getSystemMetadataMap().put(pid, systemMetadata);
|
759
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
|
760
|
|
761
|
} catch (Exception e) {
|
762
|
throw new ServiceFailure("4490", e.getMessage());
|
763
|
|
764
|
} finally {
|
765
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
|
766
|
}
|
767
|
|
768
|
return pid;
|
769
|
}
|
770
|
|
771
|
/**
|
772
|
* Verify that a replication task is authorized by comparing the target node's
|
773
|
* Subject (from the X.509 certificate-derived Session) with the list of
|
774
|
* subjects in the known, pending replication tasks map.
|
775
|
*
|
776
|
* @param originatingNodeSession - Session information that contains the
|
777
|
* identity of the calling user
|
778
|
* @param targetNodeSubject - Subject identifying the target node
|
779
|
* @param pid - the identifier of the object to be replicated
|
780
|
* @param replicatePermission - the execute permission to be granted
|
781
|
*
|
782
|
* @throws ServiceFailure
|
783
|
* @throws NotImplemented
|
784
|
* @throws InvalidToken
|
785
|
* @throws NotAuthorized
|
786
|
* @throws InvalidRequest
|
787
|
* @throws NotFound
|
788
|
*/
|
789
|
@Override
|
790
|
public boolean isNodeAuthorized(Session originatingNodeSession,
|
791
|
Subject targetNodeSubject, Identifier pid, Permission replicatePermission)
|
792
|
throws NotImplemented, NotAuthorized, InvalidToken, ServiceFailure,
|
793
|
NotFound, InvalidRequest {
|
794
|
|
795
|
boolean isAllowed = false;
|
796
|
SystemMetadata sysmeta = null;
|
797
|
NodeReference targetNode = null;
|
798
|
|
799
|
try {
|
800
|
// get the target node reference from the nodes list
|
801
|
CNode cn = D1Client.getCN();
|
802
|
List<Node> nodes = (List<Node>) cn.listNodes();
|
803
|
|
804
|
for ( Node node : nodes ) {
|
805
|
Subject nodeSubject = node.getSubject(0);
|
806
|
if (nodeSubject.getValue().equals(targetNodeSubject)) {
|
807
|
targetNode = node.getIdentifier();
|
808
|
|
809
|
}
|
810
|
}
|
811
|
|
812
|
|
813
|
//lock, get, and unlock the pid
|
814
|
HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
|
815
|
sysmeta = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
|
816
|
List<Replica> replicaList = sysmeta.getReplicaList();
|
817
|
|
818
|
// find the replica with the status set to 'requested'
|
819
|
for (Replica replica : replicaList) {
|
820
|
ReplicationStatus status = replica.getReplicationStatus();
|
821
|
NodeReference listedNode = replica.getReplicaMemberNode();
|
822
|
if (listedNode.equals(targetNode)
|
823
|
&& status.equals(ReplicationStatus.REQUESTED)) {
|
824
|
isAllowed = true;
|
825
|
break;
|
826
|
|
827
|
}
|
828
|
}
|
829
|
|
830
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
|
831
|
|
832
|
} catch(Exception e) {
|
833
|
// Catch Hazelcast RuntimeExceptions
|
834
|
throw new ServiceFailure("4872",
|
835
|
"Couldn't determine if node is allowed: " + e.getMessage());
|
836
|
|
837
|
} finally {
|
838
|
// always unlock the pid
|
839
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
|
840
|
|
841
|
}
|
842
|
|
843
|
return isAllowed;
|
844
|
|
845
|
}
|
846
|
|
847
|
/**
|
848
|
* Adds a new object to the Node, where the object is a science metadata object.
|
849
|
*
|
850
|
* @param session - the Session object containing the credentials for the Subject
|
851
|
* @param pid - The object identifier to be created
|
852
|
* @param object - the object bytes
|
853
|
* @param sysmeta - the system metadata that describes the object
|
854
|
*
|
855
|
* @return pid - the object identifier created
|
856
|
*
|
857
|
* @throws InvalidToken
|
858
|
* @throws ServiceFailure
|
859
|
* @throws NotAuthorized
|
860
|
* @throws IdentifierNotUnique
|
861
|
* @throws UnsupportedType
|
862
|
* @throws InsufficientResources
|
863
|
* @throws InvalidSystemMetadata
|
864
|
* @throws NotImplemented
|
865
|
* @throws InvalidRequest
|
866
|
*/
|
867
|
public Identifier create(Session session, Identifier pid, InputStream object,
|
868
|
SystemMetadata sysmeta)
|
869
|
throws InvalidToken, ServiceFailure, NotAuthorized, IdentifierNotUnique,
|
870
|
UnsupportedType, InsufficientResources, InvalidSystemMetadata,
|
871
|
NotImplemented, InvalidRequest {
|
872
|
|
873
|
|
874
|
try {
|
875
|
// are we allowed?
|
876
|
boolean isAllowed = false;
|
877
|
CNode cn = D1Client.getCN();
|
878
|
List<Node> nodes = (List<Node>) cn.listNodes();
|
879
|
|
880
|
for (Node node : nodes) {
|
881
|
if ( node.getType().equals(NodeType.CN) ) {
|
882
|
|
883
|
List<Subject> subjects = node.getSubjectList();
|
884
|
for (Subject subject : subjects) {
|
885
|
if (subject.getValue().equals(session.getSubject().getValue())) {
|
886
|
isAllowed = true;
|
887
|
break;
|
888
|
}
|
889
|
}
|
890
|
}
|
891
|
}
|
892
|
|
893
|
// proceed if we're called by a CN
|
894
|
if ( isAllowed ) {
|
895
|
// create the coordinating node version of the document
|
896
|
HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
|
897
|
sysmeta.setSerialVersion(BigInteger.ONE);
|
898
|
sysmeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
|
899
|
pid = super.create(session, pid, object, sysmeta);
|
900
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
|
901
|
|
902
|
} else {
|
903
|
String msg = "The subject listed as " + session.getSubject().getValue() +
|
904
|
" isn't allowed to call create() on a Coordinating Node.";
|
905
|
logMetacat.info(msg);
|
906
|
throw new NotAuthorized("1100", msg);
|
907
|
}
|
908
|
|
909
|
} catch (Exception e) {
|
910
|
// Convert Hazelcast runtime exceptions to service failures
|
911
|
String msg = "There was a problem creating the object identified by " +
|
912
|
pid.getValue() + ". There error message was: " + e.getMessage();
|
913
|
|
914
|
} finally {
|
915
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
|
916
|
|
917
|
}
|
918
|
|
919
|
return pid;
|
920
|
|
921
|
}
|
922
|
|
923
|
/**
|
924
|
* Set access for a given object using the object identifier and a Subject
|
925
|
* under a given Session.
|
926
|
*
|
927
|
* @param session - the Session object containing the credentials for the Subject
|
928
|
* @param pid - the object identifier for the given object to apply the policy
|
929
|
* @param policy - the access policy to be applied
|
930
|
*
|
931
|
* @return true if the application of the policy succeeds
|
932
|
* @throws InvalidToken
|
933
|
* @throws ServiceFailure
|
934
|
* @throws NotFound
|
935
|
* @throws NotAuthorized
|
936
|
* @throws NotImplemented
|
937
|
* @throws InvalidRequest
|
938
|
*/
|
939
|
public boolean setAccessPolicy(Session session, Identifier pid,
|
940
|
AccessPolicy accessPolicy, long serialVersion)
|
941
|
throws InvalidToken, ServiceFailure, NotFound, NotAuthorized,
|
942
|
NotImplemented, InvalidRequest {
|
943
|
|
944
|
boolean success = false;
|
945
|
|
946
|
// get the subject
|
947
|
Subject subject = session.getSubject();
|
948
|
|
949
|
// are we allowed to do this?
|
950
|
if (!isAuthorized(session, pid, Permission.CHANGE_PERMISSION)) {
|
951
|
throw new NotAuthorized("4420", "not allowed by " + subject.getValue() +
|
952
|
" on " + pid.getValue());
|
953
|
}
|
954
|
|
955
|
SystemMetadata systemMetadata = null;
|
956
|
try {
|
957
|
HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
|
958
|
systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
|
959
|
|
960
|
// does the request have the most current system metadata?
|
961
|
if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
|
962
|
String msg = "The requested system metadata version number " +
|
963
|
serialVersion + "differs from the current version at " +
|
964
|
systemMetadata.getSerialVersion().longValue() +
|
965
|
" Please get the latest copy in order to modify it.";
|
966
|
throw new InvalidRequest("4402", msg);
|
967
|
}
|
968
|
|
969
|
} catch (Exception e) {
|
970
|
// convert Hazelcast RuntimeException to NotFound
|
971
|
throw new NotFound("4400", "No record found for: " + pid);
|
972
|
|
973
|
}
|
974
|
|
975
|
// set the access policy
|
976
|
systemMetadata.setAccessPolicy(accessPolicy);
|
977
|
|
978
|
// update the system metadata
|
979
|
try {
|
980
|
systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
|
981
|
systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
|
982
|
HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
|
983
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(systemMetadata.getIdentifier());
|
984
|
|
985
|
} catch (Exception e) {
|
986
|
// convert Hazelcast RuntimeException to ServiceFailure
|
987
|
throw new ServiceFailure("4430", e.getMessage());
|
988
|
|
989
|
} finally {
|
990
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(systemMetadata.getIdentifier());
|
991
|
|
992
|
}
|
993
|
|
994
|
// TODO: how do we know if the map was persisted?
|
995
|
success = true;
|
996
|
|
997
|
return success;
|
998
|
}
|
999
|
|
1000
|
/**
|
1001
|
* Full replacement of replication metadata in the system metadata for the
|
1002
|
* specified object, changes date system metadata modified
|
1003
|
*
|
1004
|
* @param session - the Session object containing the credentials for the Subject
|
1005
|
* @param pid - the object identifier for the given object to apply the policy
|
1006
|
* @param replica - the replica to be updated
|
1007
|
* @return
|
1008
|
* @throws NotImplemented
|
1009
|
* @throws NotAuthorized
|
1010
|
* @throws ServiceFailure
|
1011
|
* @throws InvalidRequest
|
1012
|
* @throws NotFound
|
1013
|
*/
|
1014
|
public boolean updateReplicationMetadata(Session session, Identifier pid,
|
1015
|
Replica replica, long serialVersion)
|
1016
|
throws NotImplemented, NotAuthorized, ServiceFailure, InvalidRequest,
|
1017
|
NotFound {
|
1018
|
|
1019
|
// get the subject
|
1020
|
Subject subject = session.getSubject();
|
1021
|
|
1022
|
// are we allowed to do this?
|
1023
|
try {
|
1024
|
// what is the controlling permission?
|
1025
|
if (!isAuthorized(session, pid, Permission.WRITE)) {
|
1026
|
throw new NotAuthorized("4851", "not allowed by " + subject.getValue() +
|
1027
|
" on " + pid.getValue());
|
1028
|
}
|
1029
|
|
1030
|
} catch (InvalidToken e) {
|
1031
|
throw new NotAuthorized("4851", "not allowed by " + subject.getValue() +
|
1032
|
" on " + pid.getValue());
|
1033
|
|
1034
|
}
|
1035
|
|
1036
|
SystemMetadata systemMetadata = null;
|
1037
|
try {
|
1038
|
HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
|
1039
|
systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
|
1040
|
|
1041
|
// does the request have the most current system metadata?
|
1042
|
if ( systemMetadata.getSerialVersion().longValue() != serialVersion ) {
|
1043
|
String msg = "The requested system metadata version number " +
|
1044
|
serialVersion + "differs from the current version at " +
|
1045
|
systemMetadata.getSerialVersion().longValue() +
|
1046
|
" Please get the latest copy in order to modify it.";
|
1047
|
throw new InvalidRequest("4853", msg);
|
1048
|
}
|
1049
|
|
1050
|
} catch (Exception e) { // Catch is generic since HZ throws RuntimeException
|
1051
|
throw new NotFound("4854", "No record found for: " + pid.getValue() +
|
1052
|
" : " + e.getMessage());
|
1053
|
|
1054
|
}
|
1055
|
|
1056
|
// set the status for the replica
|
1057
|
List<Replica> replicas = systemMetadata.getReplicaList();
|
1058
|
NodeReference replicaNode = replica.getReplicaMemberNode();
|
1059
|
int index = 0;
|
1060
|
for (Replica listedReplica: replicas) {
|
1061
|
|
1062
|
// remove the replica that we are replacing
|
1063
|
if ( replicaNode.getValue().equals(listedReplica.getReplicaMemberNode().getValue())) {
|
1064
|
replicas.remove(index);
|
1065
|
break;
|
1066
|
|
1067
|
}
|
1068
|
index++;
|
1069
|
}
|
1070
|
|
1071
|
// add the new replica item
|
1072
|
replicas.add(replica);
|
1073
|
systemMetadata.setReplicaList(replicas);
|
1074
|
|
1075
|
// update the metadata
|
1076
|
try {
|
1077
|
systemMetadata.setSerialVersion(systemMetadata.getSerialVersion().add(BigInteger.ONE));
|
1078
|
systemMetadata.setDateSysMetadataModified(Calendar.getInstance().getTime());
|
1079
|
HazelcastService.getInstance().getSystemMetadataMap().put(systemMetadata.getIdentifier(), systemMetadata);
|
1080
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(systemMetadata.getIdentifier());
|
1081
|
|
1082
|
} catch (Exception e) {
|
1083
|
throw new ServiceFailure("4852", e.getMessage());
|
1084
|
|
1085
|
} finally {
|
1086
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(systemMetadata.getIdentifier());
|
1087
|
|
1088
|
}
|
1089
|
|
1090
|
return true;
|
1091
|
|
1092
|
}
|
1093
|
|
1094
|
@Override
|
1095
|
public ObjectList listObjects(Session session, Date startTime,
|
1096
|
Date endTime, ObjectFormatIdentifier formatid, Boolean replicaStatus,
|
1097
|
Integer start, Integer count)
|
1098
|
throws InvalidRequest, InvalidToken, NotAuthorized, NotImplemented,
|
1099
|
ServiceFailure {
|
1100
|
|
1101
|
ObjectList objectList = null;
|
1102
|
try {
|
1103
|
objectList = IdentifierManager.getInstance().querySystemMetadata(startTime, endTime, formatid, replicaStatus, start, count);
|
1104
|
} catch (Exception e) {
|
1105
|
throw new ServiceFailure("1580", "Error querying system metadata: " + e.getMessage());
|
1106
|
}
|
1107
|
|
1108
|
return objectList;
|
1109
|
}
|
1110
|
}
|