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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.security.NoSuchAlgorithmException;
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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.Timer;
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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.client.MNode;
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import org.dataone.client.auth.CertificateManager;
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import org.dataone.configuration.Settings;
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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.SynchronizationFailed;
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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.mn.tier1.v1.MNCore;
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import org.dataone.service.mn.tier1.v1.MNRead;
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import org.dataone.service.mn.tier2.v1.MNAuthorization;
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import org.dataone.service.mn.tier3.v1.MNStorage;
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import org.dataone.service.mn.tier4.v1.MNReplication;
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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.DescribeResponse;
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import org.dataone.service.types.v1.Event;
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import org.dataone.service.types.v1.Group;
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import org.dataone.service.types.v1.Identifier;
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import org.dataone.service.types.v1.Log;
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import org.dataone.service.types.v1.LogEntry;
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import org.dataone.service.types.v1.MonitorInfo;
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import org.dataone.service.types.v1.MonitorList;
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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.NodeState;
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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.Permission;
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import org.dataone.service.types.v1.Ping;
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import org.dataone.service.types.v1.ReplicationStatus;
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import org.dataone.service.types.v1.Schedule;
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import org.dataone.service.types.v1.Service;
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import org.dataone.service.types.v1.Services;
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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.SubjectList;
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import org.dataone.service.types.v1.Synchronization;
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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 edu.ucsb.nceas.metacat.DocumentImpl;
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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.MetacatHandler;
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import edu.ucsb.nceas.metacat.client.InsufficientKarmaException;
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import edu.ucsb.nceas.metacat.database.DBConnection;
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import edu.ucsb.nceas.metacat.database.DBConnectionPool;
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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.metacat.util.SystemUtil;
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import edu.ucsb.nceas.utilities.PropertyNotFoundException;
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/**
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* Represents Metacat's implementation of the DataONE Member Node
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* service API. Methods implement the various MN* 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 base class.
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*
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* Implements:
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* MNCore.ping()
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* MNCore.getLogRecords()
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* MNCore.getObjectStatistics()
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* MNCore.getOperationStatistics()
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* MNCore.getStatus()
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* MNCore.getCapabilities()
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* MNRead.get()
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* MNRead.getSystemMetadata()
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* MNRead.describe()
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* MNRead.getChecksum()
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* MNRead.listObjects()
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* MNRead.synchronizationFailed()
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* MNAuthorization.isAuthorized()
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* MNAuthorization.setAccessPolicy()
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* MNStorage.create()
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* MNStorage.update()
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* MNStorage.delete()
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* MNReplication.replicate()
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*
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*/
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public class MNodeService extends D1NodeService
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implements MNAuthorization, MNCore, MNRead, MNReplication, MNStorage {
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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 to get an instance of MNodeService.
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*
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* @return instance - the instance of MNodeService
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*/
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public static MNodeService getInstance(HttpServletRequest request) {
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return new MNodeService(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 MNodeService(HttpServletRequest request) {
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super(request);
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logMetacat = Logger.getLogger(MNodeService.class);
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// set the Member Node certificate file location
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CertificateManager.getInstance().setCertificateLocation(Settings.getConfiguration().getString("D1Client.certificate.file"));
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}
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/**
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* Deletes an object from the Member Node, where the object is either a
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* data object or a science metadata object.
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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 to be deleted
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*
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* @return pid - the identifier of the object used for the deletion
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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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* @throws InvalidRequest
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*/
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@Override
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public Identifier delete(Session session, Identifier pid)
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throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, NotImplemented {
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String localId = null;
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boolean allowed = false;
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String username = Constants.SUBJECT_PUBLIC;
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String[] groupnames = null;
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if (session == null) {
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throw new InvalidToken("1330", "No session has been provided");
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} else {
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username = session.getSubject().getValue();
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if (session.getSubjectInfo() != null) {
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List<Group> groupList = session.getSubjectInfo().getGroupList();
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if (groupList != null) {
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groupnames = new String[groupList.size()];
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for (int i = 0; i > groupList.size(); i++) {
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groupnames[i] = groupList.get(i).getGroupName();
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}
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}
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}
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}
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// do we have a valid pid?
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if (pid == null || pid.getValue().trim().equals("")) {
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throw new ServiceFailure("1350", "The provided identifier was invalid.");
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}
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// check for the existing identifier
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try {
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localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
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} catch (McdbDocNotFoundException e) {
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throw new NotFound("1340", "The object with the provided " + "identifier was not found.");
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}
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// does the subject have DELETE (a D1 CHANGE_PERMISSION level) priveleges on the pid?
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allowed = isAuthorized(session, pid, Permission.CHANGE_PERMISSION);
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if (allowed) {
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try {
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// delete the document
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DocumentImpl.delete(localId, username, groupnames, null);
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EventLog.getInstance().log(request.getRemoteAddr(), request.getHeader("User-Agent"), username, localId, Event.DELETE.xmlValue());
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// remove the system metadata for it
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HazelcastService.getInstance().getSystemMetadataMap().remove(pid);
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} catch (McdbDocNotFoundException e) {
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throw new NotFound("1340", "The provided identifier was invalid.");
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} catch (SQLException e) {
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throw new ServiceFailure("1350", "There was a problem deleting the object." + "The error message was: " + e.getMessage());
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} catch (InsufficientKarmaException e) {
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throw new NotAuthorized("1320", "The provided identity does not have " + "permission to DELETE objects on the Member Node.");
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} catch (Exception e) { // for some reason DocumentImpl throws a general Exception
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throw new ServiceFailure("1350", "There was a problem deleting the object." + "The error message was: " + e.getMessage());
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}
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} else {
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throw new NotAuthorized("1320", "The provided identity does not have " + "permission to DELETE objects on the Member Node.");
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}
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return pid;
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}
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/**
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* Updates an existing object by creating a new object identified by
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* newPid on the Member Node which explicitly obsoletes the object
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* identified by pid through appropriate changes to the SystemMetadata
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* of pid and newPid
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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 identifier of the object to be updated
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* @param object - the new object bytes
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* @param sysmeta - the new system metadata describing the object
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*
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* @return newPid - the identifier of the new 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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* @throws IdentifierNotUnique
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* @throws UnsupportedType
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* @throws InsufficientResources
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* @throws InvalidSystemMetadata
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* @throws InvalidRequest
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*/
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@Override
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public Identifier update(Session session, Identifier pid, InputStream object,
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Identifier newPid, SystemMetadata sysmeta)
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throws InvalidToken, ServiceFailure, NotAuthorized, IdentifierNotUnique,
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UnsupportedType, InsufficientResources, NotFound,
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InvalidSystemMetadata, NotImplemented, InvalidRequest {
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String localId = null;
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boolean allowed = false;
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boolean isScienceMetadata = false;
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if (session == null) {
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throw new InvalidToken("1210", "No session has been provided");
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}
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Subject subject = session.getSubject();
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// do we have a valid pid?
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if (pid == null || pid.getValue().trim().equals("")) {
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throw new InvalidRequest("1202", "The provided identifier was invalid.");
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}
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// check for the existing identifier
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try {
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localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
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} catch (McdbDocNotFoundException e) {
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throw new InvalidRequest("1202", "The object with the provided " +
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"identifier was not found.");
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}
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// set the originating node
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NodeReference originMemberNode = this.getCapabilities().getIdentifier();
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sysmeta.setOriginMemberNode(originMemberNode);
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// set the submitter to match the certificate
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sysmeta.setSubmitter(subject);
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// set the dates
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Date now = Calendar.getInstance().getTime();
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sysmeta.setDateSysMetadataModified(now);
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sysmeta.setDateUploaded(now);
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// does the subject have WRITE ( == update) priveleges on the pid?
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allowed = isAuthorized(session, pid, Permission.WRITE);
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if (allowed) {
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// check quality of SM
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if (sysmeta.getObsoletedBy() != null) {
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throw new InvalidSystemMetadata("1300", "Cannot include obsoletedBy when updating object");
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}
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if (sysmeta.getObsoletes() != null && !sysmeta.getObsoletes().getValue().equals(pid.getValue())) {
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throw new InvalidSystemMetadata("1300", "The identifier provided in obsoletes does not match old Identifier");
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}
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// get the existing system metadata for the object
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SystemMetadata existingSysMeta = getSystemMetadata(session, pid);
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// add the newPid to the obsoletedBy list for the existing sysmeta
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existingSysMeta.setObsoletedBy(newPid);
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// then update the existing system metadata
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updateSystemMetadata(existingSysMeta);
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// prep the new system metadata, add pid to the affected lists
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sysmeta.setObsoletes(pid);
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//sysmeta.addDerivedFrom(pid);
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isScienceMetadata = isScienceMetadata(sysmeta);
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// do we have XML metadata or a data object?
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if (isScienceMetadata) {
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// update the science metadata XML document
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// TODO: handle non-XML metadata/data documents (like netCDF)
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// TODO: don't put objects into memory using stream to string
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String objectAsXML = "";
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try {
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objectAsXML = IOUtils.toString(object, "UTF-8");
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localId = insertOrUpdateDocument(objectAsXML, newPid, session, "update");
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// register the newPid and the generated localId
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if (newPid != null) {
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IdentifierManager.getInstance().createMapping(newPid.getValue(), localId);
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351
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}
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353
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} catch (IOException e) {
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String msg = "The Node is unable to create the object. " + "There was a problem converting the object to XML";
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logMetacat.info(msg);
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throw new ServiceFailure("1310", msg + ": " + e.getMessage());
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}
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361
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} else {
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// update the data object
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localId = insertDataObject(object, newPid, session);
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366
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}
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367
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// and insert the new system metadata
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insertSystemMetadata(sysmeta);
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// log the update event
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EventLog.getInstance().log(request.getRemoteAddr(), request.getHeader("User-Agent"), subject.getValue(), localId, Event.UPDATE.toString());
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373
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} else {
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throw new NotAuthorized("1200", "The provided identity does not have " + "permission to UPDATE the object identified by " + pid.getValue()
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+ " on the Member Node.");
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}
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return newPid;
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}
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381
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public Identifier create(Session session, Identifier pid, InputStream object, SystemMetadata sysmeta) throws InvalidToken, ServiceFailure, NotAuthorized,
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IdentifierNotUnique, UnsupportedType, InsufficientResources, InvalidSystemMetadata, NotImplemented, InvalidRequest {
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384
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385
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// check for null session
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386
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if (session == null) {
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throw new InvalidToken("1110", "Session is required to WRITE to the Node.");
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}
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389
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// set the submitter to match the certificate
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sysmeta.setSubmitter(session.getSubject());
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// set the originating node
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NodeReference originMemberNode = this.getCapabilities().getIdentifier();
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sysmeta.setOriginMemberNode(originMemberNode);
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// set the dates
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Date now = Calendar.getInstance().getTime();
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sysmeta.setDateSysMetadataModified(now);
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sysmeta.setDateUploaded(now);
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398
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// call the shared impl
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399
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return super.create(session, pid, object, sysmeta);
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400
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}
|
401
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|
402
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/**
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403
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* Called by a Coordinating Node to request that the Member Node create a
|
404
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* copy of the specified object by retrieving it from another Member
|
405
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* Node and storing it locally so that it can be made accessible to
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406
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* the DataONE system.
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407
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*
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408
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* @param session - the Session object containing the credentials for the Subject
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409
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* @param sysmeta - Copy of the CN held system metadata for the object
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410
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* @param sourceNode - A reference to node from which the content should be
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411
|
* retrieved. The reference should be resolved by
|
412
|
* checking the CN node registry.
|
413
|
*
|
414
|
* @return true if the replication succeeds
|
415
|
*
|
416
|
* @throws ServiceFailure
|
417
|
* @throws NotAuthorized
|
418
|
* @throws NotImplemented
|
419
|
* @throws UnsupportedType
|
420
|
* @throws InsufficientResources
|
421
|
* @throws InvalidRequest
|
422
|
*/
|
423
|
@Override
|
424
|
public boolean replicate(Session session, SystemMetadata sysmeta, NodeReference sourceNode)
|
425
|
throws NotImplemented, ServiceFailure, NotAuthorized, InvalidRequest,
|
426
|
InsufficientResources, UnsupportedType {
|
427
|
|
428
|
// cannot be called by public
|
429
|
if (session == null) {
|
430
|
throw new NotAuthorized("2152", "No session was provided.");
|
431
|
}
|
432
|
|
433
|
logMetacat.info("MNodeService.replicate() called with parameters: \n" +
|
434
|
"\tSession.Subject = " + session.getSubject().getValue() + "\n" +
|
435
|
"\tSystemMetadata = " + sysmeta.toString() + "\n" +
|
436
|
"\tSource NodeReference =" + sourceNode.getValue());
|
437
|
|
438
|
boolean result = false;
|
439
|
String nodeIdStr = null;
|
440
|
NodeReference nodeId = null;
|
441
|
|
442
|
// get the local node id
|
443
|
try {
|
444
|
nodeIdStr = PropertyService.getProperty("dataone.memberNodeId");
|
445
|
nodeId = new NodeReference();
|
446
|
nodeId.setValue(nodeIdStr);
|
447
|
|
448
|
} catch (PropertyNotFoundException e1) {
|
449
|
logMetacat.error("Couldn't get dataone.memberNodeId property: " +
|
450
|
e1.getMessage());
|
451
|
|
452
|
}
|
453
|
// TODO: check credentials
|
454
|
|
455
|
// get the referenced object
|
456
|
Identifier pid = sysmeta.getIdentifier();
|
457
|
|
458
|
// get from the membernode
|
459
|
// TODO: switch credentials for the server retrieval?
|
460
|
MNode mn = D1Client.getMN(sourceNode);
|
461
|
CNode cn = D1Client.getCN();
|
462
|
long serialVersion = sysmeta.getSerialVersion().longValue();
|
463
|
InputStream object = null;
|
464
|
Session thisNodeSession = null;
|
465
|
|
466
|
try {
|
467
|
// session should be null to use the default certificate location set in the Certificate manager
|
468
|
object = mn.getReplica(thisNodeSession, pid);
|
469
|
logMetacat.info("MNodeService.replicate() called for identifier " + pid.getValue());
|
470
|
|
471
|
} catch (InvalidToken e) {
|
472
|
e.printStackTrace();
|
473
|
throw new ServiceFailure("2151", "Could not retrieve object to replicate (InvalidToken): " + e.getMessage());
|
474
|
} catch (NotFound e) {
|
475
|
e.printStackTrace();
|
476
|
throw new ServiceFailure("2151", "Could not retrieve object to replicate (NotFound): " + e.getMessage());
|
477
|
}
|
478
|
|
479
|
// add it to local store
|
480
|
Identifier retPid;
|
481
|
try {
|
482
|
// skip the MN.create -- this mutates the system metadata and we dont want it to
|
483
|
retPid = super.create(session, pid, object, sysmeta);
|
484
|
result = (retPid.getValue().equals(pid.getValue()));
|
485
|
} catch (InvalidToken e) {
|
486
|
e.printStackTrace();
|
487
|
throw new ServiceFailure("2151", "Could not save object to local store (InvalidToken): " + e.getMessage());
|
488
|
} catch (IdentifierNotUnique e) {
|
489
|
e.printStackTrace();
|
490
|
throw new ServiceFailure("2151", "Could not save object to local store (IdentifierNotUnique): " + e.getMessage());
|
491
|
} catch (InvalidSystemMetadata e) {
|
492
|
e.printStackTrace();
|
493
|
throw new ServiceFailure("2151", "Could not save object to local store (InvalidSystemMetadata): " + e.getMessage());
|
494
|
}
|
495
|
|
496
|
try {
|
497
|
// call the CN as the MN to set the replication status
|
498
|
cn.setReplicationStatus(thisNodeSession, pid, nodeId, ReplicationStatus.COMPLETED, serialVersion);
|
499
|
|
500
|
} catch (InvalidToken e) {
|
501
|
// TODO Auto-generated catch block
|
502
|
e.printStackTrace();
|
503
|
} catch (NotFound e) {
|
504
|
// TODO Auto-generated catch block
|
505
|
e.printStackTrace();
|
506
|
} catch (VersionMismatch e) {
|
507
|
// TODO Auto-generated catch block
|
508
|
e.printStackTrace();
|
509
|
}
|
510
|
return result;
|
511
|
|
512
|
}
|
513
|
|
514
|
/**
|
515
|
* This method provides a lighter weight mechanism than
|
516
|
* MN_read.getSystemMetadata() for a client to determine basic
|
517
|
* properties of the referenced object.
|
518
|
*
|
519
|
* @param session - the Session object containing the credentials for the Subject
|
520
|
* @param pid - the identifier of the object to be described
|
521
|
*
|
522
|
* @return describeResponse - A set of values providing a basic description
|
523
|
* of the object.
|
524
|
*
|
525
|
* @throws InvalidToken
|
526
|
* @throws ServiceFailure
|
527
|
* @throws NotAuthorized
|
528
|
* @throws NotFound
|
529
|
* @throws NotImplemented
|
530
|
* @throws InvalidRequest
|
531
|
*/
|
532
|
@Override
|
533
|
public DescribeResponse describe(Session session, Identifier pid)
|
534
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, NotImplemented {
|
535
|
|
536
|
// get system metadata and construct the describe response
|
537
|
SystemMetadata sysmeta = getSystemMetadata(session, pid);
|
538
|
DescribeResponse describeResponse = new DescribeResponse(sysmeta.getFormatId(), sysmeta.getSize(), sysmeta.getDateSysMetadataModified(),
|
539
|
sysmeta.getChecksum());
|
540
|
|
541
|
return describeResponse;
|
542
|
|
543
|
}
|
544
|
|
545
|
/**
|
546
|
* Return the object identified by the given object identifier
|
547
|
*
|
548
|
* @param session - the Session object containing the credentials for the Subject
|
549
|
* @param pid - the object identifier for the given object
|
550
|
*
|
551
|
* @return inputStream - the input stream of the given object
|
552
|
*
|
553
|
* @throws InvalidToken
|
554
|
* @throws ServiceFailure
|
555
|
* @throws NotAuthorized
|
556
|
* @throws InvalidRequest
|
557
|
* @throws NotImplemented
|
558
|
*/
|
559
|
@Override
|
560
|
public InputStream get(Session session, Identifier pid)
|
561
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, NotImplemented {
|
562
|
|
563
|
return super.get(session, pid);
|
564
|
|
565
|
}
|
566
|
|
567
|
/**
|
568
|
* Returns a Checksum for the specified object using an accepted hashing algorithm
|
569
|
*
|
570
|
* @param session - the Session object containing the credentials for the Subject
|
571
|
* @param pid - the object identifier for the given object
|
572
|
* @param algorithm - the name of an algorithm that will be used to compute
|
573
|
* a checksum of the bytes of the object
|
574
|
*
|
575
|
* @return checksum - the checksum of the given object
|
576
|
*
|
577
|
* @throws InvalidToken
|
578
|
* @throws ServiceFailure
|
579
|
* @throws NotAuthorized
|
580
|
* @throws NotFound
|
581
|
* @throws InvalidRequest
|
582
|
* @throws NotImplemented
|
583
|
*/
|
584
|
@Override
|
585
|
public Checksum getChecksum(Session session, Identifier pid, String algorithm)
|
586
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
|
587
|
InvalidRequest, NotImplemented {
|
588
|
|
589
|
Checksum checksum = null;
|
590
|
|
591
|
InputStream inputStream = get(session, pid);
|
592
|
|
593
|
try {
|
594
|
checksum = ChecksumUtil.checksum(inputStream, algorithm);
|
595
|
|
596
|
} catch (NoSuchAlgorithmException e) {
|
597
|
throw new ServiceFailure("1410", "The checksum for the object specified by " + pid.getValue() + "could not be returned due to an internal error: "
|
598
|
+ e.getMessage());
|
599
|
} catch (IOException e) {
|
600
|
throw new ServiceFailure("1410", "The checksum for the object specified by " + pid.getValue() + "could not be returned due to an internal error: "
|
601
|
+ e.getMessage());
|
602
|
}
|
603
|
|
604
|
if (checksum == null) {
|
605
|
throw new ServiceFailure("1410", "The checksum for the object specified by " + pid.getValue() + "could not be returned.");
|
606
|
}
|
607
|
|
608
|
return checksum;
|
609
|
}
|
610
|
|
611
|
/**
|
612
|
* Return the system metadata for a given object
|
613
|
*
|
614
|
* @param session - the Session object containing the credentials for the Subject
|
615
|
* @param pid - the object identifier for the given object
|
616
|
*
|
617
|
* @return inputStream - the input stream of the given system metadata object
|
618
|
*
|
619
|
* @throws InvalidToken
|
620
|
* @throws ServiceFailure
|
621
|
* @throws NotAuthorized
|
622
|
* @throws NotFound
|
623
|
* @throws InvalidRequest
|
624
|
* @throws NotImplemented
|
625
|
*/
|
626
|
@Override
|
627
|
public SystemMetadata getSystemMetadata(Session session, Identifier pid)
|
628
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
|
629
|
NotImplemented {
|
630
|
|
631
|
return super.getSystemMetadata(session, pid);
|
632
|
}
|
633
|
|
634
|
/**
|
635
|
* Retrieve the list of objects present on the MN that match the calling parameters
|
636
|
*
|
637
|
* @param session - the Session object containing the credentials for the Subject
|
638
|
* @param startTime - Specifies the beginning of the time range from which
|
639
|
* to return object (>=)
|
640
|
* @param endTime - Specifies the beginning of the time range from which
|
641
|
* to return object (>=)
|
642
|
* @param objectFormat - Restrict results to the specified object format
|
643
|
* @param replicaStatus - Indicates if replicated objects should be returned in the list
|
644
|
* @param start - The zero-based index of the first value, relative to the
|
645
|
* first record of the resultset that matches the parameters.
|
646
|
* @param count - The maximum number of entries that should be returned in
|
647
|
* the response. The Member Node may return less entries
|
648
|
* than specified in this value.
|
649
|
*
|
650
|
* @return objectList - the list of objects matching the criteria
|
651
|
*
|
652
|
* @throws InvalidToken
|
653
|
* @throws ServiceFailure
|
654
|
* @throws NotAuthorized
|
655
|
* @throws InvalidRequest
|
656
|
* @throws NotImplemented
|
657
|
*/
|
658
|
@Override
|
659
|
public ObjectList listObjects(Session session, Date startTime, Date endTime, ObjectFormatIdentifier objectFormatId, Boolean replicaStatus, Integer start,
|
660
|
Integer count) throws NotAuthorized, InvalidRequest, NotImplemented, ServiceFailure, InvalidToken {
|
661
|
|
662
|
ObjectList objectList = null;
|
663
|
|
664
|
try {
|
665
|
objectList = IdentifierManager.getInstance().querySystemMetadata(startTime, endTime, objectFormatId, replicaStatus, start, count);
|
666
|
} catch (Exception e) {
|
667
|
throw new ServiceFailure("1580", "Error querying system metadata: " + e.getMessage());
|
668
|
}
|
669
|
|
670
|
return objectList;
|
671
|
}
|
672
|
|
673
|
/**
|
674
|
* Return a description of the node's capabilities and services.
|
675
|
*
|
676
|
* @return node - the technical capabilities of the Member Node
|
677
|
*
|
678
|
* @throws ServiceFailure
|
679
|
* @throws NotAuthorized
|
680
|
* @throws InvalidRequest
|
681
|
* @throws NotImplemented
|
682
|
*/
|
683
|
@Override
|
684
|
public Node getCapabilities()
|
685
|
throws NotImplemented, ServiceFailure {
|
686
|
|
687
|
String nodeName = null;
|
688
|
String nodeId = null;
|
689
|
String subject = null;
|
690
|
String nodeDesc = null;
|
691
|
String nodeTypeString = null;
|
692
|
NodeType nodeType = null;
|
693
|
String mnCoreServiceVersion = null;
|
694
|
String mnReadServiceVersion = null;
|
695
|
String mnAuthorizationServiceVersion = null;
|
696
|
String mnStorageServiceVersion = null;
|
697
|
String mnReplicationServiceVersion = null;
|
698
|
|
699
|
boolean nodeSynchronize = false;
|
700
|
boolean nodeReplicate = false;
|
701
|
boolean mnCoreServiceAvailable = false;
|
702
|
boolean mnReadServiceAvailable = false;
|
703
|
boolean mnAuthorizationServiceAvailable = false;
|
704
|
boolean mnStorageServiceAvailable = false;
|
705
|
boolean mnReplicationServiceAvailable = false;
|
706
|
|
707
|
try {
|
708
|
// get the properties of the node based on configuration information
|
709
|
nodeName = PropertyService.getProperty("dataone.nodeName");
|
710
|
nodeId = PropertyService.getProperty("dataone.memberNodeId");
|
711
|
subject = PropertyService.getProperty("dataone.subject");
|
712
|
nodeDesc = PropertyService.getProperty("dataone.nodeDescription");
|
713
|
nodeTypeString = PropertyService.getProperty("dataone.nodeType");
|
714
|
nodeType = NodeType.convert(nodeTypeString);
|
715
|
nodeSynchronize = new Boolean(PropertyService.getProperty("dataone.nodeSynchronize")).booleanValue();
|
716
|
nodeReplicate = new Boolean(PropertyService.getProperty("dataone.nodeReplicate")).booleanValue();
|
717
|
|
718
|
mnCoreServiceVersion = PropertyService.getProperty("dataone.mnCore.serviceVersion");
|
719
|
mnReadServiceVersion = PropertyService.getProperty("dataone.mnRead.serviceVersion");
|
720
|
mnAuthorizationServiceVersion = PropertyService.getProperty("dataone.mnAuthorization.serviceVersion");
|
721
|
mnStorageServiceVersion = PropertyService.getProperty("dataone.mnStorage.serviceVersion");
|
722
|
mnReplicationServiceVersion = PropertyService.getProperty("dataone.mnReplication.serviceVersion");
|
723
|
|
724
|
mnCoreServiceAvailable = new Boolean(PropertyService.getProperty("dataone.mnCore.serviceAvailable")).booleanValue();
|
725
|
mnReadServiceAvailable = new Boolean(PropertyService.getProperty("dataone.mnRead.serviceAvailable")).booleanValue();
|
726
|
mnAuthorizationServiceAvailable = new Boolean(PropertyService.getProperty("dataone.mnAuthorization.serviceAvailable")).booleanValue();
|
727
|
mnStorageServiceAvailable = new Boolean(PropertyService.getProperty("dataone.mnStorage.serviceAvailable")).booleanValue();
|
728
|
mnReplicationServiceAvailable = new Boolean(PropertyService.getProperty("dataone.mnReplication.serviceAvailable")).booleanValue();
|
729
|
|
730
|
// Set the properties of the node based on configuration information and
|
731
|
// calls to current status methods
|
732
|
String serviceName = SystemUtil.getContextURL() + "/" + PropertyService.getProperty("dataone.serviceName");
|
733
|
Node node = new Node();
|
734
|
node.setBaseURL(serviceName + "/" + nodeTypeString);
|
735
|
node.setDescription(nodeDesc);
|
736
|
|
737
|
// set the node's health information
|
738
|
node.setState(NodeState.UP);
|
739
|
|
740
|
// set the ping response to the current value
|
741
|
Ping canPing = new Ping();
|
742
|
canPing.setSuccess(false);
|
743
|
try {
|
744
|
canPing.setSuccess(ping());
|
745
|
} catch (InsufficientResources e) {
|
746
|
e.printStackTrace();
|
747
|
}
|
748
|
|
749
|
node.setPing(canPing);
|
750
|
|
751
|
NodeReference identifier = new NodeReference();
|
752
|
identifier.setValue(nodeId);
|
753
|
node.setIdentifier(identifier);
|
754
|
Subject s = new Subject();
|
755
|
s.setValue(subject);
|
756
|
node.addSubject(s);
|
757
|
node.setName(nodeName);
|
758
|
node.setReplicate(nodeReplicate);
|
759
|
node.setSynchronize(nodeSynchronize);
|
760
|
|
761
|
// services: MNAuthorization, MNCore, MNRead, MNReplication, MNStorage
|
762
|
Services services = new Services();
|
763
|
|
764
|
Service sMNCore = new Service();
|
765
|
sMNCore.setName("MNCore");
|
766
|
sMNCore.setVersion(mnCoreServiceVersion);
|
767
|
sMNCore.setAvailable(mnCoreServiceAvailable);
|
768
|
|
769
|
Service sMNRead = new Service();
|
770
|
sMNRead.setName("MNRead");
|
771
|
sMNRead.setVersion(mnReadServiceVersion);
|
772
|
sMNRead.setAvailable(mnReadServiceAvailable);
|
773
|
|
774
|
Service sMNAuthorization = new Service();
|
775
|
sMNAuthorization.setName("MNAuthorization");
|
776
|
sMNAuthorization.setVersion(mnAuthorizationServiceVersion);
|
777
|
sMNAuthorization.setAvailable(mnAuthorizationServiceAvailable);
|
778
|
|
779
|
Service sMNStorage = new Service();
|
780
|
sMNStorage.setName("MNStorage");
|
781
|
sMNStorage.setVersion(mnStorageServiceVersion);
|
782
|
sMNStorage.setAvailable(mnStorageServiceAvailable);
|
783
|
|
784
|
Service sMNReplication = new Service();
|
785
|
sMNReplication.setName("MNReplication");
|
786
|
sMNReplication.setVersion(mnReplicationServiceVersion);
|
787
|
sMNReplication.setAvailable(mnReplicationServiceAvailable);
|
788
|
|
789
|
services.addService(sMNRead);
|
790
|
services.addService(sMNCore);
|
791
|
services.addService(sMNAuthorization);
|
792
|
services.addService(sMNStorage);
|
793
|
services.addService(sMNReplication);
|
794
|
node.setServices(services);
|
795
|
|
796
|
// TODO: Allow the metacat admin to determine the schedule
|
797
|
// Set the schedule for synchronization
|
798
|
Synchronization synchronization = new Synchronization();
|
799
|
Schedule schedule = new Schedule();
|
800
|
Date now = new Date();
|
801
|
schedule.setYear("*");
|
802
|
schedule.setMon("*");
|
803
|
schedule.setMday("*");
|
804
|
schedule.setWday("?");
|
805
|
schedule.setHour("*");
|
806
|
schedule.setMin("0/3");
|
807
|
schedule.setSec("10");
|
808
|
synchronization.setSchedule(schedule);
|
809
|
synchronization.setLastHarvested(now);
|
810
|
synchronization.setLastCompleteHarvest(now);
|
811
|
node.setSynchronization(synchronization);
|
812
|
|
813
|
node.setType(nodeType);
|
814
|
return node;
|
815
|
|
816
|
} catch (PropertyNotFoundException pnfe) {
|
817
|
String msg = "MNodeService.getCapabilities(): " + "property not found: " + pnfe.getMessage();
|
818
|
logMetacat.error(msg);
|
819
|
throw new ServiceFailure("2162", msg);
|
820
|
}
|
821
|
}
|
822
|
|
823
|
/**
|
824
|
* Returns the number of operations that have been serviced by the node
|
825
|
* over time periods of one and 24 hours.
|
826
|
*
|
827
|
* @param session - the Session object containing the credentials for the Subject
|
828
|
* @param period - An ISO8601 compatible DateTime range specifying the time
|
829
|
* range for which to return operation statistics.
|
830
|
* @param requestor - Limit to operations performed by given requestor identity.
|
831
|
* @param event - Enumerated value indicating the type of event being examined
|
832
|
* @param format - Limit to events involving objects of the specified format
|
833
|
*
|
834
|
* @return the desired log records
|
835
|
*
|
836
|
* @throws InvalidToken
|
837
|
* @throws ServiceFailure
|
838
|
* @throws NotAuthorized
|
839
|
* @throws InvalidRequest
|
840
|
* @throws NotImplemented
|
841
|
*/
|
842
|
public MonitorList getOperationStatistics(Session session, Date startTime,
|
843
|
Date endTime, Subject requestor, Event event, ObjectFormatIdentifier formatId)
|
844
|
throws NotImplemented, ServiceFailure, NotAuthorized, InsufficientResources, UnsupportedType {
|
845
|
|
846
|
MonitorList monitorList = new MonitorList();
|
847
|
|
848
|
try {
|
849
|
|
850
|
// get log records first
|
851
|
Log logs = getLogRecords(session, startTime, endTime, event, 0, null);
|
852
|
|
853
|
// TODO: aggregate by day or hour -- needs clarification
|
854
|
int count = 1;
|
855
|
for (LogEntry logEntry : logs.getLogEntryList()) {
|
856
|
Identifier pid = logEntry.getIdentifier();
|
857
|
Date logDate = logEntry.getDateLogged();
|
858
|
// if we are filtering by format
|
859
|
if (formatId != null) {
|
860
|
SystemMetadata sysmeta = IdentifierManager.getInstance().getSystemMetadata(pid.getValue());
|
861
|
if (!sysmeta.getFormatId().getValue().equals(formatId.getValue())) {
|
862
|
// does not match
|
863
|
continue;
|
864
|
}
|
865
|
}
|
866
|
MonitorInfo item = new MonitorInfo();
|
867
|
item.setCount(count);
|
868
|
item.setDate(new java.sql.Date(logDate.getTime()));
|
869
|
monitorList.addMonitorInfo(item);
|
870
|
|
871
|
}
|
872
|
} catch (Exception e) {
|
873
|
e.printStackTrace();
|
874
|
throw new ServiceFailure("2081", "Could not retrieve statistics: " + e.getMessage());
|
875
|
}
|
876
|
|
877
|
return monitorList;
|
878
|
|
879
|
}
|
880
|
|
881
|
/**
|
882
|
* Low level “are you alive” operation. A valid ping response is
|
883
|
* indicated by a HTTP status of 200.
|
884
|
*
|
885
|
* @return true if the service is alive
|
886
|
*
|
887
|
* @throws InvalidToken
|
888
|
* @throws ServiceFailure
|
889
|
* @throws NotImplemented
|
890
|
*/
|
891
|
@Override
|
892
|
public boolean ping()
|
893
|
throws NotImplemented, ServiceFailure, InsufficientResources {
|
894
|
|
895
|
// test if we can get a database connection
|
896
|
boolean alive = false;
|
897
|
int serialNumber = -1;
|
898
|
DBConnection dbConn = null;
|
899
|
try {
|
900
|
dbConn = DBConnectionPool.getDBConnection("MNodeService.ping");
|
901
|
serialNumber = dbConn.getCheckOutSerialNumber();
|
902
|
alive = true;
|
903
|
} catch (SQLException e) {
|
904
|
return alive;
|
905
|
} finally {
|
906
|
// Return the database connection
|
907
|
DBConnectionPool.returnDBConnection(dbConn, serialNumber);
|
908
|
}
|
909
|
|
910
|
return alive;
|
911
|
}
|
912
|
|
913
|
/**
|
914
|
* A callback method used by a CN to indicate to a MN that it cannot
|
915
|
* complete synchronization of the science metadata identified by pid. Log
|
916
|
* the event in the metacat event log.
|
917
|
*
|
918
|
* @param session
|
919
|
* @param syncFailed
|
920
|
*
|
921
|
* @throws ServiceFailure
|
922
|
* @throws NotAuthorized
|
923
|
* @throws NotImplemented
|
924
|
*/
|
925
|
@Override
|
926
|
public void synchronizationFailed(Session session, SynchronizationFailed syncFailed)
|
927
|
throws NotImplemented, ServiceFailure, NotAuthorized {
|
928
|
|
929
|
String localId;
|
930
|
|
931
|
try {
|
932
|
localId = IdentifierManager.getInstance().getLocalId(syncFailed.getPid());
|
933
|
} catch (McdbDocNotFoundException e) {
|
934
|
throw new ServiceFailure("2161", "The identifier specified by " + syncFailed.getPid() + " was not found on this node.");
|
935
|
|
936
|
}
|
937
|
// TODO: update the CN URL below when the CNRead.SynchronizationFailed
|
938
|
// method is changed to include the URL as a parameter
|
939
|
logMetacat.debug("Synchronization for the object identified by " + syncFailed.getPid() + " failed from " + syncFailed.getNodeId()
|
940
|
+ " Logging the event to the Metacat EventLog as a 'syncFailed' event.");
|
941
|
// TODO: use the event type enum when the SYNCHRONIZATION_FAILED event is added
|
942
|
String principal = Constants.SUBJECT_PUBLIC;
|
943
|
if (session != null && session.getSubject() != null) {
|
944
|
principal = session.getSubject().getValue();
|
945
|
}
|
946
|
try {
|
947
|
EventLog.getInstance().log(request.getRemoteAddr(), request.getHeader("User-Agent"), principal, localId, "synchronization_failed");
|
948
|
} catch (Exception e) {
|
949
|
throw new ServiceFailure("2161", "Could not log the error for: " + syncFailed.getPid());
|
950
|
}
|
951
|
//EventLog.getInstance().log("CN URL WILL GO HERE",
|
952
|
// session.getSubject().getValue(), localId, Event.SYNCHRONIZATION_FAILED);
|
953
|
|
954
|
}
|
955
|
|
956
|
/**
|
957
|
* Essentially a get() but with different logging behavior
|
958
|
*/
|
959
|
@Override
|
960
|
public InputStream getReplica(Session session, Identifier pid)
|
961
|
throws NotAuthorized, NotImplemented, ServiceFailure, InvalidToken {
|
962
|
|
963
|
logMetacat.info("MNodeService.getReplica() called.");
|
964
|
|
965
|
// cannot be called by public
|
966
|
if (session == null) {
|
967
|
throw new InvalidToken("2183", "No session was provided.");
|
968
|
}
|
969
|
|
970
|
logMetacat.info("MNodeService.getReplica() called with parameters: \n" +
|
971
|
"\tSession.Subject = " + session.getSubject().getValue() + "\n" +
|
972
|
"\tIdentifier = " + pid.getValue());
|
973
|
|
974
|
InputStream inputStream = null; // bytes to be returned
|
975
|
handler = new MetacatHandler(new Timer());
|
976
|
boolean allowed = false;
|
977
|
String localId; // the metacat docid for the pid
|
978
|
|
979
|
// get the local docid from Metacat
|
980
|
try {
|
981
|
localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
|
982
|
} catch (McdbDocNotFoundException e) {
|
983
|
throw new ServiceFailure("2181", "The object specified by " +
|
984
|
pid.getValue() + " does not exist at this node.");
|
985
|
|
986
|
}
|
987
|
|
988
|
Subject targetNodeSubject = session.getSubject();
|
989
|
|
990
|
// check for authorization to replicate, null session to act as this source MN
|
991
|
try {
|
992
|
allowed = D1Client.getCN().isNodeAuthorized(null, targetNodeSubject, pid, Permission.REPLICATE);
|
993
|
} catch (InvalidToken e1) {
|
994
|
throw new ServiceFailure("2181", "Could not determine if node is authorized: "
|
995
|
+ e1.getMessage());
|
996
|
|
997
|
} catch (NotFound e1) {
|
998
|
throw new ServiceFailure("2181", "Could not determine if node is authorized: "
|
999
|
+ e1.getMessage());
|
1000
|
|
1001
|
} catch (InvalidRequest e1) {
|
1002
|
throw new ServiceFailure("2181", "Could not determine if node is authorized: "
|
1003
|
+ e1.getMessage());
|
1004
|
|
1005
|
}
|
1006
|
|
1007
|
logMetacat.info("Called D1Client.isNodeAuthorized(). Allowed = " + allowed +
|
1008
|
" for identifier " + pid.getValue());
|
1009
|
|
1010
|
// if the person is authorized, perform the read
|
1011
|
if (allowed) {
|
1012
|
try {
|
1013
|
inputStream = handler.read(localId);
|
1014
|
} catch (Exception e) {
|
1015
|
throw new ServiceFailure("1020", "The object specified by " +
|
1016
|
pid.getValue() + "could not be returned due to error: " + e.getMessage());
|
1017
|
}
|
1018
|
}
|
1019
|
|
1020
|
// if we fail to set the input stream
|
1021
|
if (inputStream == null) {
|
1022
|
throw new ServiceFailure("2181", "The object specified by " +
|
1023
|
pid.getValue() + "does not exist at this node.");
|
1024
|
}
|
1025
|
|
1026
|
// log the replica event
|
1027
|
String principal = null;
|
1028
|
if (session.getSubject() != null) {
|
1029
|
principal = session.getSubject().getValue();
|
1030
|
}
|
1031
|
EventLog.getInstance().log(request.getRemoteAddr(),
|
1032
|
request.getHeader("User-Agent"), principal, localId, "replicate");
|
1033
|
|
1034
|
return inputStream;
|
1035
|
}
|
1036
|
|
1037
|
/**
|
1038
|
* Set the access policy
|
1039
|
*/
|
1040
|
@Deprecated
|
1041
|
@Override
|
1042
|
public boolean setAccessPolicy(Session session, Identifier pid,
|
1043
|
AccessPolicy policy)
|
1044
|
throws InvalidToken, ServiceFailure, NotFound, NotAuthorized,
|
1045
|
NotImplemented, InvalidRequest {
|
1046
|
|
1047
|
throw new NotImplemented("4401", "This method is deprecated for Member Nodes.");
|
1048
|
|
1049
|
}
|
1050
|
|
1051
|
/**
|
1052
|
* A method to notify the Member Node that the authoritative copy of
|
1053
|
* system metadata on the Coordinating Nodes has changed.
|
1054
|
*
|
1055
|
* @param session Session information that contains the identity of the
|
1056
|
* calling user as retrieved from the X.509 certificate
|
1057
|
* which must be traceable to the CILogon service.
|
1058
|
* @param serialVersion The serialVersion of the system metadata
|
1059
|
* @param dateSysMetaLastModified The time stamp for when the system metadata was changed
|
1060
|
* @throws NotImplemented
|
1061
|
* @throws ServiceFailure
|
1062
|
* @throws NotAuthorized
|
1063
|
* @throws InvalidRequest
|
1064
|
* @throws InvalidToken
|
1065
|
*/
|
1066
|
public void systemMetadataChanged(Session session, Identifier pid,
|
1067
|
long serialVersion, Date dateSysMetaLastModified)
|
1068
|
throws NotImplemented, ServiceFailure, NotAuthorized, InvalidRequest,
|
1069
|
InvalidToken {
|
1070
|
|
1071
|
SystemMetadata currentLocalSysMeta = null;
|
1072
|
SystemMetadata newSysMeta = null;
|
1073
|
CNode cn = D1Client.getCN();
|
1074
|
NodeList nodeList = null;
|
1075
|
Subject callingSubject = null;
|
1076
|
boolean allowed = false;
|
1077
|
|
1078
|
// are we allowed to call this?
|
1079
|
callingSubject = session.getSubject();
|
1080
|
nodeList = cn.listNodes();
|
1081
|
|
1082
|
for(Node node : nodeList.getNodeList()) {
|
1083
|
// must be a CN
|
1084
|
if ( node.getType().equals(NodeType.CN)) {
|
1085
|
List<Subject> subjectList = node.getSubjectList();
|
1086
|
// the calling subject must be in the subject list
|
1087
|
if ( subjectList.contains(callingSubject)) {
|
1088
|
allowed = true;
|
1089
|
|
1090
|
}
|
1091
|
|
1092
|
}
|
1093
|
}
|
1094
|
|
1095
|
if (!allowed ) {
|
1096
|
String msg = "The subject identified by " + callingSubject.getValue() +
|
1097
|
" is not authorized to call this service.";
|
1098
|
throw new NotAuthorized("1331", msg);
|
1099
|
|
1100
|
}
|
1101
|
|
1102
|
// compare what we have locally to what is sent in the change notification
|
1103
|
try {
|
1104
|
currentLocalSysMeta =
|
1105
|
IdentifierManager.getInstance().getSystemMetadata(pid.getValue());
|
1106
|
|
1107
|
} catch (McdbDocNotFoundException e) {
|
1108
|
String msg = "SystemMetadata for pid " + pid.getValue() +
|
1109
|
" cpouldn't be updated because it couldn't be found locally: " +
|
1110
|
e.getMessage();
|
1111
|
logMetacat.warn(msg);
|
1112
|
|
1113
|
}
|
1114
|
|
1115
|
if (currentLocalSysMeta.getSerialVersion().longValue() < serialVersion ) {
|
1116
|
try {
|
1117
|
newSysMeta = cn.getSystemMetadata(null, pid);
|
1118
|
} catch (NotFound e) {
|
1119
|
// huh? you just said you had it
|
1120
|
logMetacat.error("On updating the local copy of system metadata " +
|
1121
|
"for pid " + pid.getValue() +", the CN reports it is not found." +
|
1122
|
" The error message was: " + e.getMessage());
|
1123
|
|
1124
|
}
|
1125
|
// update the local copy of system metadata for the pid
|
1126
|
try {
|
1127
|
IdentifierManager.getInstance().updateSystemMetadata(newSysMeta);
|
1128
|
logMetacat.info("Updated local copy of system metadata for pid " +
|
1129
|
pid.getValue() + " after change notification from the CN.");
|
1130
|
|
1131
|
} catch (McdbDocNotFoundException e) {
|
1132
|
String msg = "SystemMetadata for pid " + pid.getValue() +
|
1133
|
" cpouldn't be updated because it couldn't be found: " +
|
1134
|
e.getMessage();
|
1135
|
logMetacat.warn(msg);
|
1136
|
|
1137
|
}
|
1138
|
}
|
1139
|
|
1140
|
}
|
1141
|
|
1142
|
}
|