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LockWorkFailureDump.java
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LockWorkFailureDump.java
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/*
* Copyright (c) 2002-2017 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.kernel.impl.locking;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import org.neo4j.logging.FormattedLogProvider;
import org.neo4j.logging.Log;
public class LockWorkFailureDump
{
private final File file;
public LockWorkFailureDump( File file )
{
this.file = file;
}
public File dumpState( Locks lm, LockWorker... workers ) throws IOException
{
FileOutputStream out = new FileOutputStream( file, false );
FormattedLogProvider logProvider = FormattedLogProvider.withoutAutoFlush().toOutputStream( out );
try
{
// * locks held by the lock manager
lm.accept( new DumpLocksVisitor( logProvider.getLog( LockWorkFailureDump.class ) ) );
// * rag manager state;
// * workers state
Log log = logProvider.getLog( getClass() );
for ( LockWorker worker : workers )
{
// - what each is doing and have up to now
log.info( "Worker %s", worker );
}
return file;
}
finally
{
out.flush();
out.close();
}
}
}