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LoggingMonitor.java
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LoggingMonitor.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.api.labelscan;
import java.util.Map;
import org.neo4j.kernel.api.labelscan.LabelScanStore.Monitor;
import org.neo4j.logging.Log;
import static java.lang.String.format;
/**
* Logs about important events about {@link LabelScanStore} {@link Monitor}.
*/
public class LoggingMonitor implements Monitor
{
private final Log log;
public LoggingMonitor( Log log )
{
this.log = log;
}
@Override
public void noIndex()
{
log.info( "No scan store found, this might just be first use. Preparing to rebuild." );
}
@Override
public void lockedIndex( Exception e )
{
log.error( "Scan store is locked by another process or database", e );
}
@Override
public void notValidIndex()
{
log.warn( "Scan store could not be read. Preparing to rebuild." );
}
@Override
public void rebuilding()
{
log.info( "Rebuilding scan store, this may take a while" );
}
@Override
public void rebuilt( long roughNodeCount )
{
log.info( "Scan store rebuilt (roughly " + roughNodeCount + " nodes)" );
}
@Override
public void recoveryCompleted( Map<String,Object> data )
{
StringBuilder builder = new StringBuilder( "Scan store recovery completed:" );
data.forEach( (key,value) -> builder.append( format( " %s: %s", key, value ) ) );
log.info( builder.toString() );
}
}