| /*************************************************************************** |
| * Copyright (c) 2004 - 2008 Eike Stepper, Germany. |
| * 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 - http://bugs.eclipse.org/210868 |
| **************************************************************************/ |
| package org.eclipse.emf.cdo.internal.server.protocol; |
| |
| import org.eclipse.emf.cdo.common.CDODataInput; |
| import org.eclipse.emf.cdo.common.CDODataOutput; |
| import org.eclipse.emf.cdo.common.CDOProtocolConstants; |
| import org.eclipse.emf.cdo.common.id.CDOID; |
| import org.eclipse.emf.cdo.common.model.CDOClass; |
| import org.eclipse.emf.cdo.common.model.CDOFeature; |
| import org.eclipse.emf.cdo.internal.server.bundle.OM; |
| import org.eclipse.emf.cdo.spi.common.InternalCDORevision; |
| |
| import org.eclipse.net4j.util.collection.MoveableList; |
| import org.eclipse.net4j.util.om.trace.ContextTracer; |
| |
| import java.io.IOException; |
| |
| /** |
| * @author Eike Stepper |
| */ |
| public class LoadChunkIndication extends CDOReadIndication |
| { |
| private static final ContextTracer PROTOCOL_TRACER = new ContextTracer(OM.DEBUG_PROTOCOL, LoadChunkIndication.class); |
| |
| private CDOID id; |
| |
| private int version; |
| |
| private CDOFeature 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 (PROTOCOL_TRACER.isEnabled()) |
| { |
| PROTOCOL_TRACER.format("Read revision ID: {0}", id); |
| } |
| |
| version = in.readInt(); |
| if (PROTOCOL_TRACER.isEnabled()) |
| { |
| PROTOCOL_TRACER.format("Read revision version: {0}", version); |
| } |
| |
| CDOClass cdoClass = in.readCDOClassRefAndResolve(); |
| int featureID = in.readInt(); |
| feature = cdoClass.getAllFeatures()[featureID]; |
| if (PROTOCOL_TRACER.isEnabled()) |
| { |
| PROTOCOL_TRACER.format("Read feature: {0}", feature); |
| } |
| |
| fromIndex = in.readInt(); |
| if (PROTOCOL_TRACER.isEnabled()) |
| { |
| PROTOCOL_TRACER.format("Read fromIndex: {0}", fromIndex); |
| } |
| |
| toIndex = in.readInt(); |
| if (PROTOCOL_TRACER.isEnabled()) |
| { |
| PROTOCOL_TRACER.format("Read toIndex: {0}", toIndex); |
| } |
| } |
| |
| @Override |
| protected void responding(CDODataOutput out) throws IOException |
| { |
| InternalCDORevision revision = getRevisionManager().getRevisionByVersion(id, 0, version); |
| getRevisionManager().ensureChunk(revision, feature, fromIndex, toIndex + 1); |
| |
| MoveableList<Object> list = revision.getList(feature); |
| for (int i = fromIndex; i <= toIndex; i++) |
| { |
| feature.getType().writeValue(out, list.get(i)); |
| } |
| } |
| } |