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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: leinfelder $'
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* '$Date: 2011-12-22 09:24:28 -0800 (Thu, 22 Dec 2011) $'
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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.File;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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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.Hashtable;
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import java.util.List;
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import java.util.Timer;
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import java.util.Vector;
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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.ObjectFormatCache;
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import org.dataone.service.util.Constants;
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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.AccessRule;
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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.Identifier;
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import org.dataone.service.types.v1.Group;
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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.NodeReference;
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import org.dataone.service.types.v1.ObjectFormat;
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import org.dataone.service.types.v1.Permission;
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import org.dataone.service.types.v1.Person;
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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.SubjectInfo;
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import org.dataone.service.types.v1.SubjectList;
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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 edu.ucsb.nceas.metacat.AccessionNumberException;
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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.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.replication.ForceReplicationHandler;
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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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public abstract class D1NodeService {
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private static Logger logMetacat = Logger.getLogger(D1NodeService.class);
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/** For logging the operations */
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protected HttpServletRequest request;
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/* reference to the metacat handler */
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protected MetacatHandler handler;
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/* parameters set in the incoming request */
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private Hashtable<String, String[]> params;
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/**
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* Constructor - used to set the metacatUrl from a subclass extending D1NodeService
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*
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* @param metacatUrl - the URL of the metacat service, including the ending /d1
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*/
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public D1NodeService(HttpServletRequest request) {
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this.request = request;
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}
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/**
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* This method provides a lighter weight mechanism than
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* getSystemMetadata() for a client to determine basic
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* properties of the referenced 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 identifier of the object to be described
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*
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* @return describeResponse - A set of values providing a basic description
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* 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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* @throws InvalidRequest
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*/
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public DescribeResponse describe(Session session, Identifier pid)
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throws InvalidToken, ServiceFailure, NotAuthorized, NotFound, NotImplemented {
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// get system metadata and construct the describe response
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SystemMetadata sysmeta = getSystemMetadata(session, pid);
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DescribeResponse describeResponse =
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new DescribeResponse(sysmeta.getFormatId(), sysmeta.getSize(),
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sysmeta.getDateSysMetadataModified(),
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sysmeta.getChecksum(), sysmeta.getSerialVersion());
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return describeResponse;
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}
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/**
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* Low level, "are you alive" operation. A valid ping response is
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* indicated by a HTTP status of 200.
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*
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* @return true if the service is alive
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*
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* @throws NotImplemented
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* @throws ServiceFailure
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* @throws InsufficientResources
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*/
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public Date ping()
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throws NotImplemented, ServiceFailure, InsufficientResources {
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// test if we can get a database connection
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int serialNumber = -1;
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DBConnection dbConn = null;
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try {
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dbConn = DBConnectionPool.getDBConnection("MNodeService.ping");
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serialNumber = dbConn.getCheckOutSerialNumber();
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} catch (SQLException e) {
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ServiceFailure sf = new ServiceFailure("", e.getMessage());
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sf.initCause(e);
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throw sf;
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} finally {
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// Return the database connection
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DBConnectionPool.returnDBConnection(dbConn, serialNumber);
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}
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return Calendar.getInstance().getTime();
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}
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/**
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* Adds a new object to the Node, where the object is either a data
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* object or a science metadata object. This method is called by clients
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* to create new data objects on Member Nodes or internally for Coordinating
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* Nodes
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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 created
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* @param object - the object bytes
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* @param sysmeta - the system metadata that describes the object
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*
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* @return pid - the object identifier created
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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 IdentifierNotUnique
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* @throws UnsupportedType
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* @throws InsufficientResources
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* @throws InvalidSystemMetadata
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* @throws NotImplemented
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* @throws InvalidRequest
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*/
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public Identifier create(Session session, Identifier pid, InputStream object,
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SystemMetadata sysmeta)
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throws InvalidToken, ServiceFailure, NotAuthorized, IdentifierNotUnique,
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UnsupportedType, InsufficientResources, InvalidSystemMetadata,
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NotImplemented, InvalidRequest {
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Identifier resultPid = null;
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String localId = null;
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boolean allowed = false;
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// check for null session
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if (session == null) {
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throw new InvalidToken("4894", "Session is required to WRITE to the Node.");
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}
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Subject subject = session.getSubject();
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Subject publicSubject = new Subject();
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publicSubject.setValue(Constants.SUBJECT_PUBLIC);
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// be sure the user is authenticated for create()
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if (subject == null || subject.getValue() == null ||
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subject.equals(publicSubject) ) {
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throw new NotAuthorized("1100", "The provided identity does not have " +
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"permission to WRITE to the Node.");
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}
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// verify that pid == SystemMetadata.getIdentifier()
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logMetacat.debug("Comparing pid|sysmeta_pid: " +
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pid.getValue() + "|" + sysmeta.getIdentifier().getValue());
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if (!pid.getValue().equals(sysmeta.getIdentifier().getValue())) {
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throw new InvalidSystemMetadata("1180",
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"The supplied system metadata is invalid. " +
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"The identifier " + pid.getValue() + " does not match identifier" +
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"in the system metadata identified by " +
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sysmeta.getIdentifier().getValue() + ".");
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}
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logMetacat.debug("Checking if identifier exists...");
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// Check that the identifier does not already exist
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if (IdentifierManager.getInstance().identifierExists(pid.getValue())) {
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throw new IdentifierNotUnique("1120",
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"The requested identifier " + pid.getValue() +
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" is already used by another object and" +
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"therefore can not be used for this object. Clients should choose" +
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"a new identifier that is unique and retry the operation or " +
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"use CN.reserveIdentifier() to reserve one.");
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}
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// check that we are not attempting to subvert versioning
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if (sysmeta.getObsoletes() != null && sysmeta.getObsoletes().getValue() != null) {
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throw new InvalidSystemMetadata("1180",
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"The supplied system metadata is invalid. " +
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"The obsoletes field cannot have a value when creating entries.");
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}
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if (sysmeta.getObsoletedBy() != null && sysmeta.getObsoletedBy().getValue() != null) {
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throw new InvalidSystemMetadata("1180",
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"The supplied system metadata is invalid. " +
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"The obsoletedBy field cannot have a value when creating entries.");
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}
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// TODO: this probably needs to be refined more
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try {
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allowed = isAuthorized(session, pid, Permission.WRITE);
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} catch (NotFound e) {
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// The identifier doesn't exist, writing should be fine.
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allowed = true;
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}
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// verify checksum, only if we can reset the inputstream
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if (object.markSupported()) {
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String checksumAlgorithm = sysmeta.getChecksum().getAlgorithm();
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String checksumValue = sysmeta.getChecksum().getValue();
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try {
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String computedChecksumValue = ChecksumUtil.checksum(object, checksumAlgorithm).getValue();
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// it's very important that we don't consume the stream
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object.reset();
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if (!computedChecksumValue.equals(checksumValue)) {
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throw new InvalidSystemMetadata("4896", "Checksum given does not match that of the object");
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}
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} catch (Exception e) {
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String msg = "Error verifying checksum values";
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logMetacat.error(msg, e);
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throw new ServiceFailure("1190", msg + ": " + e.getMessage());
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}
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} else {
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logMetacat.warn("mark is not supported on the object's input stream - cannot verify checksum without consuming stream");
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}
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// we have the go ahead
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if ( allowed ) {
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// Science metadata (XML) or science data object?
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// TODO: there are cases where certain object formats are science metadata
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// but are not XML (netCDF ...). Handle this.
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if ( isScienceMetadata(sysmeta) ) {
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// CASE METADATA:
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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, pid, session, "insert");
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//localId = im.getLocalId(pid.getValue());
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} catch (IOException e) {
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String msg = "The Node is unable to create the object. " +
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"There was a problem converting the object to XML";
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logMetacat.info(msg);
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throw new ServiceFailure("1190", msg + ": " + e.getMessage());
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}
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} else {
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// DEFAULT CASE: DATA (needs to be checked and completed)
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localId = insertDataObject(object, pid, session);
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}
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}
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// save the sysmeta
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try {
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// lock and unlock of the pid happens in the subclass
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HazelcastService.getInstance().getSystemMetadataMap().put(sysmeta.getIdentifier(), sysmeta);
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} catch (Exception e) {
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logMetacat.error("Problem creating system metadata: " + pid.getValue(), e);
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throw new ServiceFailure("1190", e.getMessage());
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}
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// setting the resulting identifier failed
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if (localId == null ) {
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throw new ServiceFailure("1190", "The Node is unable to create the object. ");
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}
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resultPid = pid;
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return resultPid;
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}
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/**
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* Return the log records associated with a given event between the start and
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* end dates listed given a particular Subject listed in the Session
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*
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* @param session - the Session object containing the credentials for the Subject
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* @param fromDate - the start date of the desired log records
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* @param toDate - the end date of the desired log records
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* @param event - restrict log records of a specific event type
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* @param start - zero based offset from the first record in the
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* set of matching log records. Used to assist with
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* paging the response.
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* @param count - maximum number of log records to return in the response.
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* Used to assist with paging the response.
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*
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* @return the desired log records
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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 InvalidRequest
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* @throws NotImplemented
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*/
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public Log getLogRecords(Session session, Date fromDate, Date toDate,
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Event event, Integer start, Integer count) throws InvalidToken, ServiceFailure,
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NotAuthorized, InvalidRequest, NotImplemented {
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366
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367
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Log log = new Log();
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List<LogEntry> logs = new Vector<LogEntry>();
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IdentifierManager im = IdentifierManager.getInstance();
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EventLog el = EventLog.getInstance();
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if ( fromDate == null ) {
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logMetacat.debug("setting fromdate from null");
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fromDate = new Date(1);
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}
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if ( toDate == null ) {
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logMetacat.debug("setting todate from null");
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toDate = new Date();
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}
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380
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if ( start == null ) {
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start = 0;
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383
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384
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}
|
385
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if ( count == null ) {
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count = 1000;
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388
|
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389
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}
|
390
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logMetacat.debug("fromDate: " + fromDate);
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logMetacat.debug("toDate: " + toDate);
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393
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String report = el.getReport(null, null, null, null,
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new java.sql.Timestamp(fromDate.getTime()),
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new java.sql.Timestamp(toDate.getTime()), false);
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logMetacat.debug("report: " + report);
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399
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String logEntry = "<logEntry>";
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String endLogEntry = "</logEntry>";
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int startIndex = 0;
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int foundIndex = report.indexOf(logEntry, startIndex);
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while (foundIndex != -1) {
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// parse out each entry
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int endEntryIndex = report.indexOf(endLogEntry, foundIndex);
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String entry = report.substring(foundIndex, endEntryIndex);
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logMetacat.debug("entry: " + entry);
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startIndex = endEntryIndex + endLogEntry.length();
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foundIndex = report.indexOf(logEntry, startIndex);
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411
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String entryId = getLogEntryField("entryid", entry);
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413
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String ipAddress = getLogEntryField("ipAddress", entry);
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String principal = getLogEntryField("principal", entry);
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String userAgent = getLogEntryField("userAgent", entry);
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String docid = getLogEntryField("docid", entry);
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String eventS = getLogEntryField("event", entry);
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String dateLogged = getLogEntryField("dateLogged", entry);
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419
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LogEntry le = new LogEntry();
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421
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Event e = Event.convert(eventS);
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423
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if (e == null) { // skip any events that are not Dataone Crud events
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424
|
continue;
|
425
|
}
|
426
|
le.setEvent(e);
|
427
|
le.setEntryId(entryId);
|
428
|
Identifier identifier = new Identifier();
|
429
|
try {
|
430
|
logMetacat.debug("converting docid '" + docid + "' to a pid.");
|
431
|
if (docid == null || docid.trim().equals("") || docid.trim().equals("null")) {
|
432
|
continue;
|
433
|
}
|
434
|
docid = docid.substring(0, docid.lastIndexOf("."));
|
435
|
identifier.setValue(im.getGUID(docid, im.getLatestRevForLocalId(docid)));
|
436
|
} catch (Exception ex) {
|
437
|
// try to get the pid, if that doesn't
|
438
|
// work, just use the local id
|
439
|
// throw new ServiceFailure("1030",
|
440
|
// "Error getting pid for localId " +
|
441
|
// docid + ": " + ex.getMessage());\
|
442
|
|
443
|
// skip it if the pid can't be found
|
444
|
continue;
|
445
|
}
|
446
|
|
447
|
le.setIdentifier(identifier);
|
448
|
le.setIpAddress(ipAddress);
|
449
|
Calendar c = Calendar.getInstance();
|
450
|
String year = dateLogged.substring(0, 4);
|
451
|
String month = dateLogged.substring(5, 7);
|
452
|
String date = dateLogged.substring(8, 10);
|
453
|
logMetacat.debug("year: " + year + " month: " + month + " day: " + date);
|
454
|
c.set(new Integer(year).intValue(), new Integer(month).intValue(),
|
455
|
new Integer(date).intValue());
|
456
|
Date logDate = c.getTime();
|
457
|
le.setDateLogged(logDate);
|
458
|
NodeReference memberNode = new NodeReference();
|
459
|
memberNode.setValue(ipAddress);
|
460
|
le.setNodeIdentifier(memberNode);
|
461
|
Subject princ = new Subject();
|
462
|
princ.setValue(principal);
|
463
|
le.setSubject(princ);
|
464
|
le.setUserAgent(userAgent);
|
465
|
|
466
|
// event filtering?
|
467
|
if (event == null) {
|
468
|
logs.add(le);
|
469
|
} else if (le.getEvent().equals(event)) {
|
470
|
logs.add(le);
|
471
|
}
|
472
|
}
|
473
|
|
474
|
// d1 paging
|
475
|
int total = logs.size();
|
476
|
if (start != null && count != null) {
|
477
|
int toIndex = start + count;
|
478
|
if (toIndex <= total) {
|
479
|
logs = new ArrayList<LogEntry>(logs.subList(start, toIndex));
|
480
|
}
|
481
|
}
|
482
|
|
483
|
log.setLogEntryList(logs);
|
484
|
log.setStart(start);
|
485
|
log.setCount(logs.size());
|
486
|
log.setTotal(total);
|
487
|
logMetacat.info("getLogRecords");
|
488
|
return log;
|
489
|
}
|
490
|
|
491
|
/**
|
492
|
* Return the object identified by the given object identifier
|
493
|
*
|
494
|
* @param session - the Session object containing the credentials for the Subject
|
495
|
* @param pid - the object identifier for the given object
|
496
|
*
|
497
|
* TODO: The D1 Authorization API doesn't provide information on which
|
498
|
* authentication system the Subject belongs to, and so it's not possible to
|
499
|
* discern which Person or Group is a valid KNB LDAP DN. Fix this.
|
500
|
*
|
501
|
* @return inputStream - the input stream of the given object
|
502
|
*
|
503
|
* @throws InvalidToken
|
504
|
* @throws ServiceFailure
|
505
|
* @throws NotAuthorized
|
506
|
* @throws InvalidRequest
|
507
|
* @throws NotImplemented
|
508
|
*/
|
509
|
public InputStream get(Session session, Identifier pid)
|
510
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
|
511
|
NotImplemented {
|
512
|
|
513
|
InputStream inputStream = null; // bytes to be returned
|
514
|
handler = new MetacatHandler(new Timer());
|
515
|
boolean allowed = false;
|
516
|
String localId; // the metacat docid for the pid
|
517
|
|
518
|
// get the local docid from Metacat
|
519
|
try {
|
520
|
localId = IdentifierManager.getInstance().getLocalId(pid.getValue());
|
521
|
|
522
|
} catch (McdbDocNotFoundException e) {
|
523
|
throw new NotFound("1020", "The object specified by " +
|
524
|
pid.getValue() +
|
525
|
" does not exist at this node.");
|
526
|
}
|
527
|
|
528
|
// check for authorization
|
529
|
allowed = isAuthorized(session, pid, Permission.READ);
|
530
|
|
531
|
// if the person is authorized, perform the read
|
532
|
if (allowed) {
|
533
|
try {
|
534
|
inputStream = handler.read(localId);
|
535
|
} catch (Exception e) {
|
536
|
throw new ServiceFailure("1020", "The object specified by " +
|
537
|
pid.getValue() +
|
538
|
"could not be returned due to error: " +
|
539
|
e.getMessage());
|
540
|
}
|
541
|
}
|
542
|
|
543
|
// if we fail to set the input stream
|
544
|
if ( inputStream == null ) {
|
545
|
throw new NotFound("1020", "The object specified by " +
|
546
|
pid.getValue() +
|
547
|
"does not exist at this node.");
|
548
|
}
|
549
|
|
550
|
// log the read event
|
551
|
String principal = Constants.SUBJECT_PUBLIC;
|
552
|
if (session != null && session.getSubject() != null) {
|
553
|
principal = session.getSubject().getValue();
|
554
|
}
|
555
|
EventLog.getInstance().log(request.getRemoteAddr(), request.getHeader("User-Agent"), principal, localId, "read");
|
556
|
|
557
|
return inputStream;
|
558
|
}
|
559
|
|
560
|
/**
|
561
|
* Return the system metadata for a given object
|
562
|
*
|
563
|
* @param session - the Session object containing the credentials for the Subject
|
564
|
* @param pid - the object identifier for the given object
|
565
|
*
|
566
|
* @return inputStream - the input stream of the given system metadata object
|
567
|
*
|
568
|
* @throws InvalidToken
|
569
|
* @throws ServiceFailure
|
570
|
* @throws NotAuthorized
|
571
|
* @throws NotFound
|
572
|
* @throws InvalidRequest
|
573
|
* @throws NotImplemented
|
574
|
*/
|
575
|
public SystemMetadata getSystemMetadata(Session session, Identifier pid)
|
576
|
throws InvalidToken, ServiceFailure, NotAuthorized, NotFound,
|
577
|
NotImplemented {
|
578
|
|
579
|
if (!isAuthorized(session, pid, Permission.READ)) {
|
580
|
throw new NotAuthorized("1400", Permission.READ + " not allowed on " + pid.getValue());
|
581
|
}
|
582
|
SystemMetadata systemMetadata = null;
|
583
|
try {
|
584
|
HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
|
585
|
systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
|
586
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
|
587
|
|
588
|
} catch (Exception e) {
|
589
|
// convert hazelcast RuntimeException to NotFound
|
590
|
throw new NotFound("1420", "No record found for: " + pid.getValue());
|
591
|
|
592
|
}
|
593
|
|
594
|
return systemMetadata;
|
595
|
}
|
596
|
|
597
|
/**
|
598
|
* Test if the user identified by the provided token has authorization
|
599
|
* for operation on the specified object.
|
600
|
*
|
601
|
* @param session - the Session object containing the credentials for the Subject
|
602
|
* @param pid - The identifer of the resource for which access is being checked
|
603
|
* @param operation - The type of operation which is being requested for the given pid
|
604
|
*
|
605
|
* @return true if the operation is allowed
|
606
|
*
|
607
|
* @throws ServiceFailure
|
608
|
* @throws InvalidToken
|
609
|
* @throws NotFound
|
610
|
* @throws NotAuthorized
|
611
|
* @throws NotImplemented
|
612
|
* @throws InvalidRequest
|
613
|
*/
|
614
|
public boolean isAuthorized(Session session, Identifier pid, Permission permission)
|
615
|
throws ServiceFailure, InvalidToken, NotFound, NotAuthorized,
|
616
|
NotImplemented {
|
617
|
|
618
|
boolean allowed = false;
|
619
|
|
620
|
// permissions are hierarchical
|
621
|
List<Permission> expandedPermissions = expandPermissions(permission);
|
622
|
|
623
|
// for the "Verified" symbolic user
|
624
|
Subject verifiedSubject = new Subject();
|
625
|
verifiedSubject.setValue(Constants.SUBJECT_VERIFIED_USER);
|
626
|
|
627
|
// get the subjects from the session
|
628
|
List<Subject> subjects = new ArrayList<Subject>();
|
629
|
if (session != null) {
|
630
|
Subject subject = session.getSubject();
|
631
|
if (subject != null) {
|
632
|
subjects.add(subject);
|
633
|
}
|
634
|
SubjectInfo subjectInfo = session.getSubjectInfo();
|
635
|
if (subjectInfo != null) {
|
636
|
// add the equivalent identities
|
637
|
List<Person> personList = subjectInfo.getPersonList();
|
638
|
if (personList != null) {
|
639
|
for (Person p: personList) {
|
640
|
subjects.add(p.getSubject());
|
641
|
if (p.getVerified()) {
|
642
|
// add the verified symbolic user
|
643
|
if (!subjects.contains(verifiedSubject)) {
|
644
|
subjects.add(verifiedSubject);
|
645
|
}
|
646
|
}
|
647
|
}
|
648
|
}
|
649
|
// add the groups
|
650
|
List<Group> groupList = subjectInfo.getGroupList();
|
651
|
if (groupList != null) {
|
652
|
for (Group g: groupList) {
|
653
|
subjects.add(g.getSubject());
|
654
|
}
|
655
|
}
|
656
|
}
|
657
|
// add the authenticated symbolic as a check
|
658
|
Subject authenticatedSubject = new Subject();
|
659
|
authenticatedSubject.setValue(Constants.SUBJECT_AUTHENTICATED_USER);
|
660
|
subjects.add(authenticatedSubject);
|
661
|
|
662
|
}
|
663
|
|
664
|
// add public subject
|
665
|
Subject publicSubject = new Subject();
|
666
|
publicSubject.setValue(Constants.SUBJECT_PUBLIC);
|
667
|
subjects.add(publicSubject);
|
668
|
|
669
|
// get the system metadata
|
670
|
String pidStr = pid.getValue();
|
671
|
SystemMetadata systemMetadata = null;
|
672
|
try {
|
673
|
HazelcastService.getInstance().getSystemMetadataMap().lock(pid);
|
674
|
systemMetadata = HazelcastService.getInstance().getSystemMetadataMap().get(pid);
|
675
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
|
676
|
|
677
|
} catch (Exception e) {
|
678
|
// convert Hazelcast RuntimeException to NotFound
|
679
|
logMetacat.error("An error occurred while getting system metadata for identifier " +
|
680
|
pid.getValue() + ". The error message was: " + e.getMessage());
|
681
|
throw new NotFound("1800", "No record found for " + pidStr);
|
682
|
|
683
|
} finally {
|
684
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(pid);
|
685
|
|
686
|
}
|
687
|
|
688
|
// throw not found if it was not found
|
689
|
if (systemMetadata == null) {
|
690
|
throw new NotFound("1800", "No system metadata could be found for given PID: " + pidStr);
|
691
|
}
|
692
|
|
693
|
// do we own it?
|
694
|
for (Subject s: subjects) {
|
695
|
allowed = systemMetadata.getRightsHolder().equals(s);
|
696
|
if (allowed) {
|
697
|
return allowed;
|
698
|
}
|
699
|
}
|
700
|
|
701
|
// otherwise check the access rules
|
702
|
try {
|
703
|
List<AccessRule> allows = systemMetadata.getAccessPolicy().getAllowList();
|
704
|
search: // label break
|
705
|
for (AccessRule accessRule: allows) {
|
706
|
for (Subject s: subjects) {
|
707
|
if (accessRule.getSubjectList().contains(s)) {
|
708
|
for (Permission p: expandedPermissions) {
|
709
|
allowed = accessRule.getPermissionList().contains(p);
|
710
|
if (allowed) {
|
711
|
break search; //label break
|
712
|
}
|
713
|
}
|
714
|
|
715
|
}
|
716
|
}
|
717
|
}
|
718
|
} catch (Exception e) {
|
719
|
// catch all for errors - safe side should be to deny the access
|
720
|
logMetacat.error("Problem checking authorization - defaulting to deny", e);
|
721
|
allowed = false;
|
722
|
}
|
723
|
|
724
|
// throw or return?
|
725
|
if (!allowed) {
|
726
|
throw new NotAuthorized("1820", permission + " not allowed on " + pidStr);
|
727
|
}
|
728
|
|
729
|
return allowed;
|
730
|
|
731
|
}
|
732
|
|
733
|
/*
|
734
|
* parse a logEntry and get the relevant field from it
|
735
|
*
|
736
|
* @param fieldname
|
737
|
* @param entry
|
738
|
* @return
|
739
|
*/
|
740
|
private String getLogEntryField(String fieldname, String entry) {
|
741
|
String begin = "<" + fieldname + ">";
|
742
|
String end = "</" + fieldname + ">";
|
743
|
// logMetacat.debug("looking for " + begin + " and " + end +
|
744
|
// " in entry " + entry);
|
745
|
String s = entry.substring(entry.indexOf(begin) + begin.length(), entry
|
746
|
.indexOf(end));
|
747
|
logMetacat.debug("entry " + fieldname + " : " + s);
|
748
|
return s;
|
749
|
}
|
750
|
|
751
|
/**
|
752
|
* Determine if a given object should be treated as an XML science metadata
|
753
|
* object.
|
754
|
*
|
755
|
* @param sysmeta - the SystemMetadata describing the object
|
756
|
* @return true if the object should be treated as science metadata
|
757
|
*/
|
758
|
public static boolean isScienceMetadata(SystemMetadata sysmeta) {
|
759
|
|
760
|
ObjectFormat objectFormat = null;
|
761
|
boolean isScienceMetadata = false;
|
762
|
|
763
|
try {
|
764
|
objectFormat = ObjectFormatCache.getInstance().getFormat(sysmeta.getFormatId());
|
765
|
if ( objectFormat.getFormatType().equals("METADATA") ) {
|
766
|
isScienceMetadata = true;
|
767
|
|
768
|
}
|
769
|
|
770
|
} catch (InvalidRequest e) {
|
771
|
logMetacat.debug("There was a problem determining if the object identified by" +
|
772
|
sysmeta.getIdentifier().getValue() +
|
773
|
" is science metadata: " + e.getMessage());
|
774
|
|
775
|
} catch (ServiceFailure e) {
|
776
|
logMetacat.debug("There was a problem determining if the object identified by" +
|
777
|
sysmeta.getIdentifier().getValue() +
|
778
|
" is science metadata: " + e.getMessage());
|
779
|
|
780
|
} catch (NotFound e) {
|
781
|
logMetacat.debug("There was a problem determining if the object identified by" +
|
782
|
sysmeta.getIdentifier().getValue() +
|
783
|
" is science metadata: " + e.getMessage());
|
784
|
|
785
|
} catch (InsufficientResources e) {
|
786
|
logMetacat.debug("There was a problem determining if the object identified by" +
|
787
|
sysmeta.getIdentifier().getValue() +
|
788
|
" is science metadata: " + e.getMessage());
|
789
|
|
790
|
} catch (NotImplemented e) {
|
791
|
logMetacat.debug("There was a problem determining if the object identified by" +
|
792
|
sysmeta.getIdentifier().getValue() +
|
793
|
" is science metadata: " + e.getMessage());
|
794
|
|
795
|
}
|
796
|
|
797
|
return isScienceMetadata;
|
798
|
|
799
|
}
|
800
|
|
801
|
/**
|
802
|
* Insert or update an XML document into Metacat
|
803
|
*
|
804
|
* @param xml - the XML document to insert or update
|
805
|
* @param pid - the identifier to be used for the resulting object
|
806
|
*
|
807
|
* @return localId - the resulting docid of the document created or updated
|
808
|
*
|
809
|
*/
|
810
|
public String insertOrUpdateDocument(String xml, Identifier pid,
|
811
|
Session session, String insertOrUpdate)
|
812
|
throws ServiceFailure {
|
813
|
|
814
|
logMetacat.debug("Starting to insert xml document...");
|
815
|
IdentifierManager im = IdentifierManager.getInstance();
|
816
|
|
817
|
// generate pid/localId pair for sysmeta
|
818
|
String localId = null;
|
819
|
|
820
|
if(insertOrUpdate.equals("insert")) {
|
821
|
localId = im.generateLocalId(pid.getValue(), 1);
|
822
|
|
823
|
} else {
|
824
|
//localid should already exist in the identifier table, so just find it
|
825
|
try {
|
826
|
logMetacat.debug("Updating pid " + pid.getValue());
|
827
|
logMetacat.debug("looking in identifier table for pid " + pid.getValue());
|
828
|
|
829
|
localId = im.getLocalId(pid.getValue());
|
830
|
|
831
|
logMetacat.debug("localId: " + localId);
|
832
|
//increment the revision
|
833
|
String docid = localId.substring(0, localId.lastIndexOf("."));
|
834
|
String revS = localId.substring(localId.lastIndexOf(".") + 1, localId.length());
|
835
|
int rev = new Integer(revS).intValue();
|
836
|
rev++;
|
837
|
docid = docid + "." + rev;
|
838
|
localId = docid;
|
839
|
logMetacat.debug("incremented localId: " + localId);
|
840
|
|
841
|
} catch(McdbDocNotFoundException e) {
|
842
|
throw new ServiceFailure("1030", "D1NodeService.insertOrUpdateDocument(): " +
|
843
|
"pid " + pid.getValue() +
|
844
|
" should have been in the identifier table, but it wasn't: " +
|
845
|
e.getMessage());
|
846
|
|
847
|
}
|
848
|
|
849
|
}
|
850
|
|
851
|
params = new Hashtable<String, String[]>();
|
852
|
String[] action = new String[1];
|
853
|
action[0] = insertOrUpdate;
|
854
|
params.put("action", action);
|
855
|
String[] docid = new String[1];
|
856
|
docid[0] = localId;
|
857
|
params.put("docid", docid);
|
858
|
String[] doctext = new String[1];
|
859
|
doctext[0] = xml;
|
860
|
params.put("doctext", doctext);
|
861
|
|
862
|
String username = Constants.SUBJECT_PUBLIC;
|
863
|
String[] groupnames = null;
|
864
|
if (session != null ) {
|
865
|
username = session.getSubject().getValue();
|
866
|
if (session.getSubjectInfo() != null) {
|
867
|
List<Group> groupList = session.getSubjectInfo().getGroupList();
|
868
|
if (groupList != null) {
|
869
|
groupnames = new String[groupList.size()];
|
870
|
for (int i = 0; i > groupList.size(); i++ ) {
|
871
|
groupnames[i] = groupList.get(i).getGroupName();
|
872
|
}
|
873
|
}
|
874
|
}
|
875
|
}
|
876
|
|
877
|
// do the insert or update action
|
878
|
handler = new MetacatHandler(new Timer());
|
879
|
String result = handler.handleInsertOrUpdateAction(request.getRemoteAddr(), request.getHeader("User-Agent"), null,
|
880
|
null, params, username, groupnames);
|
881
|
|
882
|
if(result.indexOf("<error>") != -1) {
|
883
|
String detailCode = "";
|
884
|
if ( insertOrUpdate.equals("insert") ) {
|
885
|
detailCode = "1190";
|
886
|
|
887
|
} else if ( insertOrUpdate.equals("update") ) {
|
888
|
detailCode = "1310";
|
889
|
|
890
|
}
|
891
|
throw new ServiceFailure(detailCode,
|
892
|
"Error inserting or updating document: " + result);
|
893
|
}
|
894
|
logMetacat.debug("Finsished inserting xml document with id " + localId);
|
895
|
|
896
|
return localId;
|
897
|
}
|
898
|
|
899
|
/**
|
900
|
* Insert a data document
|
901
|
*
|
902
|
* @param object
|
903
|
* @param pid
|
904
|
* @param sessionData
|
905
|
* @throws ServiceFailure
|
906
|
* @returns localId of the data object inserted
|
907
|
*/
|
908
|
public String insertDataObject(InputStream object, Identifier pid,
|
909
|
Session session) throws ServiceFailure {
|
910
|
|
911
|
String username = Constants.SUBJECT_PUBLIC;
|
912
|
String[] groupnames = null;
|
913
|
if (session != null ) {
|
914
|
username = session.getSubject().getValue();
|
915
|
if (session.getSubjectInfo() != null) {
|
916
|
List<Group> groupList = session.getSubjectInfo().getGroupList();
|
917
|
if (groupList != null) {
|
918
|
groupnames = new String[groupList.size()];
|
919
|
for (int i = 0; i > groupList.size(); i++ ) {
|
920
|
groupnames[i] = groupList.get(i).getGroupName();
|
921
|
}
|
922
|
}
|
923
|
}
|
924
|
}
|
925
|
|
926
|
// generate pid/localId pair for object
|
927
|
logMetacat.debug("Generating a pid/localId mapping");
|
928
|
IdentifierManager im = IdentifierManager.getInstance();
|
929
|
String localId = im.generateLocalId(pid.getValue(), 1);
|
930
|
|
931
|
// Save the data file to disk using "localId" as the name
|
932
|
String datafilepath = null;
|
933
|
try {
|
934
|
datafilepath = PropertyService.getProperty("application.datafilepath");
|
935
|
} catch (PropertyNotFoundException e) {
|
936
|
ServiceFailure sf = new ServiceFailure("1190", "Lookup data file path" + e.getMessage());
|
937
|
sf.initCause(e);
|
938
|
throw sf;
|
939
|
}
|
940
|
boolean locked = false;
|
941
|
try {
|
942
|
locked = DocumentImpl.getDataFileLockGrant(localId);
|
943
|
} catch (Exception e) {
|
944
|
ServiceFailure sf = new ServiceFailure("1190", "Could not lock file for writing:" + e.getMessage());
|
945
|
sf.initCause(e);
|
946
|
throw sf;
|
947
|
}
|
948
|
|
949
|
logMetacat.debug("Case DATA: starting to write to disk.");
|
950
|
if (locked) {
|
951
|
|
952
|
File dataDirectory = new File(datafilepath);
|
953
|
dataDirectory.mkdirs();
|
954
|
|
955
|
File newFile = writeStreamToFile(dataDirectory, localId, object);
|
956
|
|
957
|
// TODO: Check that the file size matches SystemMetadata
|
958
|
// long size = newFile.length();
|
959
|
// if (size == 0) {
|
960
|
// throw new IOException("Uploaded file is 0 bytes!");
|
961
|
// }
|
962
|
|
963
|
// Register the file in the database (which generates an exception
|
964
|
// if the localId is not acceptable or other untoward things happen
|
965
|
try {
|
966
|
logMetacat.debug("Registering document...");
|
967
|
DocumentImpl.registerDocument(localId, "BIN", localId,
|
968
|
username, groupnames);
|
969
|
logMetacat.debug("Registration step completed.");
|
970
|
|
971
|
} catch (SQLException e) {
|
972
|
//newFile.delete();
|
973
|
logMetacat.debug("SQLE: " + e.getMessage());
|
974
|
e.printStackTrace(System.out);
|
975
|
throw new ServiceFailure("1190", "Registration failed: " +
|
976
|
e.getMessage());
|
977
|
|
978
|
} catch (AccessionNumberException e) {
|
979
|
//newFile.delete();
|
980
|
logMetacat.debug("ANE: " + e.getMessage());
|
981
|
e.printStackTrace(System.out);
|
982
|
throw new ServiceFailure("1190", "Registration failed: " +
|
983
|
e.getMessage());
|
984
|
|
985
|
} catch (Exception e) {
|
986
|
//newFile.delete();
|
987
|
logMetacat.debug("Exception: " + e.getMessage());
|
988
|
e.printStackTrace(System.out);
|
989
|
throw new ServiceFailure("1190", "Registration failed: " +
|
990
|
e.getMessage());
|
991
|
}
|
992
|
|
993
|
logMetacat.debug("Logging the creation event.");
|
994
|
EventLog.getInstance().log(request.getRemoteAddr(), request.getHeader("User-Agent"), username, localId, "create");
|
995
|
|
996
|
// Schedule replication for this data file
|
997
|
logMetacat.debug("Scheduling replication.");
|
998
|
ForceReplicationHandler frh = new ForceReplicationHandler(
|
999
|
localId, "create", false, null);
|
1000
|
}
|
1001
|
|
1002
|
return localId;
|
1003
|
|
1004
|
}
|
1005
|
|
1006
|
/**
|
1007
|
* Insert a systemMetadata document and return its localId
|
1008
|
*/
|
1009
|
public void insertSystemMetadata(SystemMetadata sysmeta)
|
1010
|
throws ServiceFailure {
|
1011
|
|
1012
|
logMetacat.debug("Starting to insert SystemMetadata...");
|
1013
|
sysmeta.setDateSysMetadataModified(Calendar.getInstance().getTime());
|
1014
|
logMetacat.debug("Inserting new system metadata with modified date " +
|
1015
|
sysmeta.getDateSysMetadataModified());
|
1016
|
|
1017
|
//insert the system metadata
|
1018
|
try {
|
1019
|
// note: the calling subclass handles the map hazelcast lock/unlock
|
1020
|
HazelcastService.getInstance().getSystemMetadataMap().put(sysmeta.getIdentifier(), sysmeta);
|
1021
|
|
1022
|
} catch (Exception e) {
|
1023
|
throw new ServiceFailure("1190", e.getMessage());
|
1024
|
|
1025
|
}
|
1026
|
}
|
1027
|
|
1028
|
/**
|
1029
|
* Update a systemMetadata document
|
1030
|
*
|
1031
|
* @param sysMeta - the system metadata object in the system to update
|
1032
|
*/
|
1033
|
protected void updateSystemMetadata(SystemMetadata sysMeta)
|
1034
|
throws ServiceFailure {
|
1035
|
|
1036
|
logMetacat.debug("D1NodeService.updateSystemMetadata() called.");
|
1037
|
sysMeta.setDateSysMetadataModified(new Date());
|
1038
|
try {
|
1039
|
HazelcastService.getInstance().getSystemMetadataMap().lock(sysMeta.getIdentifier());
|
1040
|
HazelcastService.getInstance().getSystemMetadataMap().put(sysMeta.getIdentifier(), sysMeta);
|
1041
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(sysMeta.getIdentifier());
|
1042
|
} catch (Exception e) {
|
1043
|
throw new ServiceFailure("4862", e.getMessage());
|
1044
|
} finally {
|
1045
|
HazelcastService.getInstance().getSystemMetadataMap().unlock(sysMeta.getIdentifier());
|
1046
|
}
|
1047
|
|
1048
|
}
|
1049
|
|
1050
|
/**
|
1051
|
* Given a Permission, returns a list of all permissions that it encompasses
|
1052
|
* Permissions are hierarchical so that WRITE also allows READ.
|
1053
|
* @param permission
|
1054
|
* @return list of included Permissions for the given permission
|
1055
|
*/
|
1056
|
protected List<Permission> expandPermissions(Permission permission) {
|
1057
|
List<Permission> expandedPermissions = new ArrayList<Permission>();
|
1058
|
if (permission.equals(Permission.READ)) {
|
1059
|
expandedPermissions.add(Permission.READ);
|
1060
|
}
|
1061
|
if (permission.equals(Permission.WRITE)) {
|
1062
|
expandedPermissions.add(Permission.READ);
|
1063
|
expandedPermissions.add(Permission.WRITE);
|
1064
|
}
|
1065
|
if (permission.equals(Permission.CHANGE_PERMISSION)) {
|
1066
|
expandedPermissions.add(Permission.READ);
|
1067
|
expandedPermissions.add(Permission.WRITE);
|
1068
|
expandedPermissions.add(Permission.CHANGE_PERMISSION);
|
1069
|
}
|
1070
|
return expandedPermissions;
|
1071
|
}
|
1072
|
|
1073
|
/*
|
1074
|
* Write a stream to a file
|
1075
|
*
|
1076
|
* @param dir - the directory to write to
|
1077
|
* @param fileName - the file name to write to
|
1078
|
* @param data - the object bytes as an input stream
|
1079
|
*
|
1080
|
* @return newFile - the new file created
|
1081
|
*
|
1082
|
* @throws ServiceFailure
|
1083
|
*/
|
1084
|
private File writeStreamToFile(File dir, String fileName, InputStream data)
|
1085
|
throws ServiceFailure {
|
1086
|
|
1087
|
File newFile = new File(dir, fileName);
|
1088
|
logMetacat.debug("Filename for write is: " + newFile.getAbsolutePath());
|
1089
|
|
1090
|
try {
|
1091
|
if (newFile.createNewFile()) {
|
1092
|
// write data stream to desired file
|
1093
|
OutputStream os = new FileOutputStream(newFile);
|
1094
|
long length = IOUtils.copyLarge(data, os);
|
1095
|
os.flush();
|
1096
|
os.close();
|
1097
|
} else {
|
1098
|
logMetacat.debug("File creation failed, or file already exists.");
|
1099
|
throw new ServiceFailure("1190", "File already exists: " + fileName);
|
1100
|
}
|
1101
|
} catch (FileNotFoundException e) {
|
1102
|
logMetacat.debug("FNF: " + e.getMessage());
|
1103
|
throw new ServiceFailure("1190", "File not found: " + fileName + " "
|
1104
|
+ e.getMessage());
|
1105
|
} catch (IOException e) {
|
1106
|
logMetacat.debug("IOE: " + e.getMessage());
|
1107
|
throw new ServiceFailure("1190", "File was not written: " + fileName
|
1108
|
+ " " + e.getMessage());
|
1109
|
}
|
1110
|
|
1111
|
return newFile;
|
1112
|
}
|
1113
|
|
1114
|
}
|