| /* |
| * Copyright (c) 2009-2012, 2015 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: |
| * Simon McDuff - initial API and implementation |
| * Eike Stepper - maintenance |
| */ |
| package org.eclipse.emf.cdo.internal.net4j.protocol; |
| |
| 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.internal.net4j.bundle.OM; |
| |
| import org.eclipse.net4j.util.om.trace.ContextTracer; |
| |
| import java.io.IOException; |
| |
| /** |
| * @author Simon McDuff |
| */ |
| public class QueryCancelRequest extends CDOClientRequest<Boolean> |
| { |
| private static final ContextTracer TRACER = new ContextTracer(OM.DEBUG_PROTOCOL, QueryCancelRequest.class); |
| |
| private int queryID; |
| |
| public QueryCancelRequest(CDOClientProtocol protocol, int queryID) |
| { |
| super(protocol, CDOProtocolConstants.SIGNAL_QUERY_CANCEL); |
| this.queryID = queryID; |
| } |
| |
| @Override |
| protected void requesting(CDODataOutput out) throws IOException |
| { |
| if (TRACER.isEnabled()) |
| { |
| TRACER.trace("Cancel query " + queryID); //$NON-NLS-1$ |
| } |
| |
| out.writeInt(queryID); |
| } |
| |
| @Override |
| protected Boolean confirming(CDODataInput in) throws IOException |
| { |
| boolean exception = in.readBoolean(); |
| if (exception) |
| { |
| String message = in.readString(); |
| throw new RuntimeException(message); |
| } |
| |
| return true; |
| } |
| } |