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/***************************************************************************
* 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
**************************************************************************/
package org.eclipse.emf.internal.cdo.protocol;
import org.eclipse.emf.cdo.common.protocol.CDOProtocolConstants;
import org.eclipse.emf.internal.cdo.bundle.OM;
import org.eclipse.net4j.signal.RequestWithConfirmation;
import org.eclipse.net4j.util.io.ExtendedDataInputStream;
import org.eclipse.net4j.util.io.ExtendedDataOutputStream;
import org.eclipse.net4j.util.io.IOUtil;
import org.eclipse.net4j.util.om.trace.ContextTracer;
import java.io.File;
import java.io.FileOutputStream;
import java.util.Collection;
/**
* @author Eike Stepper
*/
public class LoadLibrariesRequest extends RequestWithConfirmation<Integer>
{
private static final ContextTracer PROTOCOL_TRACER = new ContextTracer(OM.DEBUG_PROTOCOL, LoadLibrariesRequest.class);
private Collection<String> libraryNames;
private File cacheFolder;
public LoadLibrariesRequest(CDOClientProtocol protocol, Collection<String> libraryNames, File cacheFolder)
{
super(protocol, CDOProtocolConstants.SIGNAL_LOAD_LIBRARIES);
this.libraryNames = libraryNames;
this.cacheFolder = cacheFolder;
}
@Override
protected void requesting(ExtendedDataOutputStream out) throws Exception
{
int size = libraryNames.size();
if (PROTOCOL_TRACER.isEnabled())
{
PROTOCOL_TRACER.format("Writing {0} library names", size);
}
out.writeInt(size);
for (String libraryName : libraryNames)
{
if (PROTOCOL_TRACER.isEnabled())
{
PROTOCOL_TRACER.format("Writing library name: {0}", libraryName);
}
out.writeString(libraryName);
}
}
@Override
protected Integer confirming(ExtendedDataInputStream in) throws Exception
{
byte[] buffer = new byte[IOUtil.DEFAULT_BUFFER_SIZE];
int count = 0;
for (String libraryName : libraryNames)
{
int size = in.readInt();
if (PROTOCOL_TRACER.isEnabled())
{
PROTOCOL_TRACER.format("Reading library {0}: {1} bytes", libraryName, size);
}
File file = new File(cacheFolder, libraryName);
FileOutputStream out = null;
try
{
out = new FileOutputStream(file);
IOUtil.copy(in, out, size, buffer);
}
finally
{
IOUtil.close(out);
}
++count;
}
return count;
}
}
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