| /* |
| * Copyright (c) 2009-2012 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 |
| * Simon McDuff - bug 210868 |
| */ |
| package org.eclipse.emf.cdo.server.internal.net4j.protocol; |
| |
| import org.eclipse.emf.cdo.common.branch.CDOBranchVersion; |
| import org.eclipse.emf.cdo.common.id.CDOID; |
| import org.eclipse.emf.cdo.common.model.CDOModelUtil; |
| import org.eclipse.emf.cdo.common.model.CDOType; |
| import org.eclipse.emf.cdo.common.protocol.CDODataInput; |
| import org.eclipse.emf.cdo.common.protocol.CDODataOutput; |
| import org.eclipse.emf.cdo.common.protocol.CDOProtocolConstants; |
| import org.eclipse.emf.cdo.server.internal.net4j.bundle.OM; |
| import org.eclipse.emf.cdo.spi.common.revision.InternalCDORevision; |
| import org.eclipse.emf.cdo.spi.common.revision.InternalCDORevisionManager; |
| import org.eclipse.emf.cdo.spi.server.InternalRepository; |
| |
| import org.eclipse.net4j.util.collection.MoveableList; |
| import org.eclipse.net4j.util.om.trace.ContextTracer; |
| |
| import org.eclipse.emf.ecore.EClass; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| |
| import java.io.IOException; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public class LoadChunkIndication extends CDOServerReadIndication |
| { |
| private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG_PROTOCOL, LoadChunkIndication.class); |
| |
| private CDOID id; |
| |
| private CDOBranchVersion branchVersion; |
| |
| private EStructuralFeature feature; |
| |
| private int fromIndex; |
| |
| private int toIndex; |
| |
| public LoadChunkIndication(CDOServerProtocol protocol) |
| { |
| super(protocol, CDOProtocolConstants.SIGNAL_LOAD_CHUNK); |
| } |
| |
| @Override |
| protected void indicating(CDODataInput in) throws IOException |
| { |
| id = in.readCDOID(); |
| if (TRACER.isEnabled()) |
| { |
| TRACER.format("Read revision ID: {0}", id); //$NON-NLS-1$ |
| } |
| |
| branchVersion = in.readCDOBranchVersion(); |
| if (TRACER.isEnabled()) |
| { |
| TRACER.format("Read branchVersion: {0}", branchVersion); //$NON-NLS-1$ |
| } |
| |
| EClass eClass = (EClass)in.readCDOClassifierRefAndResolve(); |
| int featureID = in.readInt(); |
| feature = eClass.getEStructuralFeature(featureID); |
| if (TRACER.isEnabled()) |
| { |
| TRACER.format("Read feature: {0}", feature); //$NON-NLS-1$ |
| } |
| |
| fromIndex = in.readInt(); |
| if (TRACER.isEnabled()) |
| { |
| TRACER.format("Read fromIndex: {0}", fromIndex); //$NON-NLS-1$ |
| } |
| |
| toIndex = in.readInt(); |
| if (TRACER.isEnabled()) |
| { |
| TRACER.format("Read toIndex: {0}", toIndex); //$NON-NLS-1$ |
| } |
| } |
| |
| @Override |
| protected void responding(CDODataOutput out) throws IOException |
| { |
| InternalRepository repository = getRepository(); |
| InternalCDORevisionManager revisionManager = repository.getRevisionManager(); |
| |
| InternalCDORevision revision = revisionManager.getRevisionByVersion(id, branchVersion, 0, true); |
| repository.ensureChunk(revision, feature, fromIndex, toIndex + 1); |
| |
| CDOType type = CDOModelUtil.getType(feature); |
| MoveableList<Object> list = revision.getList(feature); |
| for (int i = fromIndex; i <= toIndex; i++) |
| { |
| Object value = list.get(i); |
| type.writeValue(out, value); |
| } |
| } |
| } |