bundles/org.simantics.db.procore/src/fi/vtt/simantics/procore/internal/SessionImplDb.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package fi.vtt.simantics.procore.internal;
  13
  14 import java.io.File;
  15
  16 import org.simantics.db.Database;
  17 import org.simantics.db.SessionManager;
  18 import org.simantics.db.SessionReference;
  19 import org.simantics.db.VirtualGraph;
  20 import org.simantics.db.authentication.UserAuthenticationAgent;
  21 import org.simantics.db.exception.DatabaseException;
  22 import org.simantics.db.exception.InvalidAuthenticationException;
  23 import org.simantics.db.exception.InvalidUserException;
  24 import org.simantics.db.impl.ClusterI;
  25 import org.simantics.db.impl.ClusterSupport;
  26 import org.simantics.db.impl.ClusterTranslator;
  27 import org.simantics.db.impl.ResourceImpl;
  28 import org.simantics.db.impl.graph.WriteSupport;
  29 import org.simantics.db.impl.query.QueryProcessor;
  30 import org.simantics.db.impl.query.QuerySupport;
  31 import org.simantics.db.service.ServerInformation;
  32 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 final public class SessionImplDb extends SessionImplSocket {
  36
  37     private static final Logger LOGGER = LoggerFactory.getLogger(SessionImplDb.class);
  38
  39     /**
  40      * Cached ServerInformation structure fetched from the server at connection
  41      * time. It should never change during a single session and therefore it
  42      * should be perfectly safe to cache it.
  43      */
  44     protected ServerInformationImpl serverInfo;
  45
  46     public SessionImplDb(SessionManager sessionManager, UserAuthenticationAgent authAgent) {
  47         super(sessionManager, authAgent);
  48     }
  49
  50     @Override
  51     protected VirtualGraph getProvider(VirtualGraph vg) {
  52         return vg;
  53     }
  54
  55     @Override
  56     public ResourceImpl getNewResource() throws DatabaseException {
  57         if (null != defaultClusterSet)
  58             return getNewResource(defaultClusterSet);
  59         ClusterI cluster = getNewResourceCluster();
  60         int newId;
  61         try {
  62             newId = cluster.createResource(clusterTranslator);
  63         } catch (DatabaseException e) {
  64             LOGGER.error("createResource failed", e);
  65             return null;
  66         }
  67         return new ResourceImpl(resourceSupport, newId);
  68     }
  69
  70     public void connect(SessionReference sessionReference, final Database.Session dbSession) throws Exception {
  71         if (null == clusterTable) {
  72             File t = StaticSessionProperties.virtualGraphStoragePath;
  73             if (null == t)
  74                 t = new File(".");
  75             clusterTable = new ClusterTable(this, t);
  76         }
  77
  78         graphSession = new GraphSessionSocket(this, sessionReference, dbSession);
  79
  80         try {
  81
  82             clusterStream = new ClusterStream(this, graphSession, false);
  83
  84             clusterTranslator = new ClusterTranslatorImpl(this);
  85             serviceLocator.registerService(ClusterTranslator.class, clusterTranslator);
  86             serviceLocator.registerService(ClusterSupport.class, clusterTranslator);
  87
  88             resourceSupport = new ResourceSupportImpl(this);
  89
  90             requestManager = new SessionRequestManager(this, state);
  91
  92             querySupport = new QuerySupportImpl(this, clusterTranslator, new SerialisationSupportImpl(this), requestManager);
  93             serviceLocator.registerService(QuerySupport.class, querySupport);
  94
  95             queryProvider2 = new QueryProcessor(getAmountOfQueryThreads(), querySupport, sessionThreads);
  96
  97             if("true".equals(System.getProperty("org.simantics.db.persistQueries")))
  98                 queryProvider2.restore();
  99
 100             writeSupport = new WriteSupportImpl(this);
 101             serviceLocator.registerService(WriteSupport.class, writeSupport);
 102
 103             state.setGraphSession(this, graphSession, queryProvider2, clusterTable);
 104
 105             this.serverInfo = graphSession.getServerInformation();
 106
 107 //            authenticator = authAgent.getAuthenticator(serverInfo);
 108 //            if (authenticator == null)
 109 //                throw new InvalidAuthenticationException("Authentication agent did not provide an authenticator");
 110 //            if (authenticator instanceof BackdoorAuthenticator)
 111 //                user = authenticator.getUser(this);
 112
 113         } catch (InvalidAuthenticationException e) {
 114             throw e;
 115         } catch (InvalidUserException e) {
 116             throw e;
 117 //        } catch (IOException e) {
 118 //            Logger.defaultLogError("I/O error. See exception for details.", e);
 119 //            graphSession = null;
 120 //            clusterTable.dispose(); clusterTable = null;
 121 //            throw e;
 122         } catch (Throwable e) {
 123             LOGGER.error("Unhandled error. See exception for details.", e);
 124             graphSession = null;
 125             clusterTable.dispose(); clusterTable = null;
 126             throw new Exception(e);
 127         }
 128
 129         String databaseId = serverInfo.getDatabaseId();
 130         String serverId = serverInfo.getServerId();
 131         String id = databaseId + "." + serverId;
 132         virtualGraphServerSupport.connect(id);
 133         clusterSetsSupport.connect(id);
 134
 135     }
 136
 137     @Override
 138     protected ServerInformation getCachedServerInformation() {
 139         return serverInfo;
 140     }
 141
 142 }