| /* |
| * Copyright (c) 2011, 2012 Eike Stepper (Berlin, Germany) and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Eike Stepper - initial API and implementation |
| */ |
| package org.eclipse.emf.cdo.server.internal.db; |
| |
| import org.eclipse.emf.cdo.common.branch.CDOBranchPoint; |
| import org.eclipse.emf.cdo.common.id.CDOID; |
| import org.eclipse.emf.cdo.common.id.CDOID.ObjectType; |
| import org.eclipse.emf.cdo.common.id.CDOIDExternal; |
| import org.eclipse.emf.cdo.common.id.CDOIDUtil; |
| import org.eclipse.emf.cdo.common.protocol.CDODataInput; |
| import org.eclipse.emf.cdo.common.protocol.CDODataOutput; |
| import org.eclipse.emf.cdo.common.revision.CDORevision; |
| import org.eclipse.emf.cdo.server.IStoreAccessor.CommitContext; |
| import org.eclipse.emf.cdo.server.StoreThreadLocal; |
| import org.eclipse.emf.cdo.server.db.IDBStoreAccessor; |
| import org.eclipse.emf.cdo.server.db.IIDHandler; |
| import org.eclipse.emf.cdo.server.db.mapping.ITypeMapping; |
| import org.eclipse.emf.cdo.server.internal.db.mapping.CoreTypeMappings; |
| import org.eclipse.emf.cdo.spi.server.LongIDStore; |
| |
| import org.eclipse.net4j.db.DBType; |
| import org.eclipse.net4j.util.lifecycle.Lifecycle; |
| import org.eclipse.net4j.util.om.monitor.OMMonitor; |
| |
| import java.io.IOException; |
| import java.sql.Connection; |
| import java.sql.PreparedStatement; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.util.Set; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public class LongIDHandler extends Lifecycle implements IIDHandler |
| { |
| public static final CDOID MIN = CDOID.NULL; |
| |
| public static final CDOID MAX = create(Long.MAX_VALUE); |
| |
| private DBStore store; |
| |
| private ExternalReferenceManager externalReferenceManager; |
| |
| private CDOID lastObjectID = MIN; |
| |
| private CDOID nextLocalObjectID = MAX; |
| |
| public LongIDHandler(DBStore store) |
| { |
| this.store = store; |
| externalReferenceManager = new ExternalReferenceManager(this); |
| } |
| |
| public DBStore getStore() |
| { |
| return store; |
| } |
| |
| public Set<ObjectType> getObjectIDTypes() |
| { |
| return LongIDStore.OBJECT_ID_TYPES; |
| } |
| |
| public CDOID getMinCDOID() |
| { |
| return MIN; |
| } |
| |
| public CDOID getMaxCDOID() |
| { |
| return MAX; |
| } |
| |
| public int compare(CDOID id1, CDOID id2) |
| { |
| return id1.compareTo(id2); |
| } |
| |
| public CDOID createCDOID(String val) |
| { |
| Long id = Long.valueOf(val); |
| return create(id); |
| } |
| |
| public synchronized CDOID getLastObjectID() |
| { |
| return lastObjectID; |
| } |
| |
| public synchronized void setLastObjectID(CDOID lastObjectID) |
| { |
| this.lastObjectID = lastObjectID; |
| } |
| |
| public synchronized void adjustLastObjectID(CDOID maxID) |
| { |
| if (compare(maxID, lastObjectID) > 0) |
| { |
| lastObjectID = maxID; |
| } |
| } |
| |
| public synchronized CDOID getNextLocalObjectID() |
| { |
| return nextLocalObjectID; |
| } |
| |
| public synchronized void setNextLocalObjectID(CDOID nextLocalObjectID) |
| { |
| this.nextLocalObjectID = nextLocalObjectID; |
| } |
| |
| public synchronized CDOID getNextCDOID(CDORevision revision) |
| { |
| if (revision.getBranch().isLocal()) |
| { |
| CDOID result = nextLocalObjectID; |
| nextLocalObjectID = create(value(result) - 1); |
| return result; |
| } |
| |
| lastObjectID = create(value(lastObjectID) + 1); |
| return lastObjectID; |
| } |
| |
| @Deprecated |
| public boolean isLocalCDOID(CDOID id) |
| { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public DBType getDBType() |
| { |
| return DBType.BIGINT; |
| } |
| |
| public ITypeMapping getObjectTypeMapping() |
| { |
| return new CoreTypeMappings.TMObject(); |
| } |
| |
| public void appendCDOID(StringBuilder builder, CDOID id) |
| { |
| long value; |
| if (id != null && id.isExternal()) |
| { |
| IDBStoreAccessor accessor = (IDBStoreAccessor)StoreThreadLocal.getAccessor(); |
| String uri = CDOIDUtil.getString(id); |
| value = externalReferenceManager.lookupByURI(accessor, uri); |
| } |
| else |
| { |
| value = value(id); |
| } |
| |
| builder.append(value); |
| } |
| |
| public void setCDOIDRaw(PreparedStatement stmt, int column, Object rawID) throws SQLException |
| { |
| stmt.setLong(column, (Long)rawID); |
| } |
| |
| public void setCDOID(PreparedStatement stmt, int column, CDOID id) throws SQLException |
| { |
| setCDOID(stmt, column, id, CDOBranchPoint.INVALID_DATE); |
| } |
| |
| public void setCDOID(PreparedStatement stmt, int column, CDOID id, long commitTime) throws SQLException |
| { |
| long value; |
| if (id.getType() == CDOID.Type.EXTERNAL_OBJECT) |
| { |
| if (commitTime == CDOBranchPoint.INVALID_DATE) |
| { |
| CommitContext commitContext = StoreThreadLocal.getCommitContext(); |
| commitTime = commitContext != null ? commitContext.getBranchPoint().getTimeStamp() |
| : CDOBranchPoint.UNSPECIFIED_DATE; // Happens on rawStore for workspace checkouts |
| } |
| |
| value = externalReferenceManager.mapExternalReference((CDOIDExternal)id, commitTime); |
| } |
| else |
| { |
| value = value(id); |
| } |
| |
| stmt.setLong(column, value); |
| } |
| |
| public CDOID getCDOID(ResultSet resultSet, int column) throws SQLException |
| { |
| long id = resultSet.getLong(column); |
| if (resultSet.wasNull()) |
| { |
| return null; |
| } |
| |
| return unmapExternalReference(id); |
| } |
| |
| public CDOID getCDOID(ResultSet resultSet, String name) throws SQLException |
| { |
| long id = resultSet.getLong(name); |
| if (resultSet.wasNull()) |
| { |
| return null; |
| } |
| |
| return unmapExternalReference(id); |
| } |
| |
| private CDOID unmapExternalReference(long id) |
| { |
| if (id < 0) |
| { |
| return externalReferenceManager.unmapExternalReference(id); |
| } |
| |
| return create(id); |
| } |
| |
| public CDOID mapURI(IDBStoreAccessor accessor, String uri, long commitTime) |
| { |
| return create(externalReferenceManager.mapURI(accessor, uri, commitTime)); |
| } |
| |
| public String unmapURI(IDBStoreAccessor accessor, CDOID id) |
| { |
| if (id.getType() == CDOID.Type.EXTERNAL_OBJECT) |
| { |
| return ((CDOIDExternal)id).getURI(); |
| } |
| |
| return externalReferenceManager.unmapURI(accessor, value(id)); |
| } |
| |
| public void rawExport(Connection connection, CDODataOutput out, long fromCommitTime, long toCommitTime) |
| throws IOException |
| { |
| externalReferenceManager.rawExport(connection, out, fromCommitTime, toCommitTime); |
| } |
| |
| public void rawImport(Connection connection, CDODataInput in, long fromCommitTime, long toCommitTime, |
| OMMonitor monitor) throws IOException |
| { |
| externalReferenceManager.rawImport(connection, in, fromCommitTime, toCommitTime, monitor); |
| } |
| |
| @Override |
| protected void doActivate() throws Exception |
| { |
| super.doActivate(); |
| externalReferenceManager.activate(); |
| } |
| |
| @Override |
| protected void doDeactivate() throws Exception |
| { |
| externalReferenceManager.deactivate(); |
| super.doDeactivate(); |
| } |
| |
| private static CDOID create(long id) |
| { |
| return CDOIDUtil.createLong(id); |
| } |
| |
| private static long value(CDOID id) |
| { |
| return CDOIDUtil.getLong(id); |
| } |
| } |