001/*
002 * Copyright (c) 2007-2016 Concurrent, Inc. All Rights Reserved.
003 *
004 * Project and contact information: http://www.cascading.org/
005 *
006 * This file is part of the Cascading project.
007 *
008 * Licensed under the Apache License, Version 2.0 (the "License");
009 * you may not use this file except in compliance with the License.
010 * You may obtain a copy of the License at
011 *
012 *     http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing, software
015 * distributed under the License is distributed on an "AS IS" BASIS,
016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017 * See the License for the specific language governing permissions and
018 * limitations under the License.
019 */
020
021package cascading.util;
022
023import cascading.flow.FlowProcess;
024import cascading.flow.FlowRuntimeProps;
025import org.slf4j.Logger;
026
027/**
028 *
029 */
030public class LogUtil
031  {
032  public static void setLog4jLevel( String[] logger )
033    {
034    setLog4jLevel( logger[ 0 ], logger[ 1 ] );
035    }
036
037  public static void setLog4jLevel( String logger, String level )
038    {
039    // removing logj4 dependency
040    // org.apache.log4j.Logger.getLogger( logger[ 0 ] ).setLevel( org.apache.log4j.Level.toLevel( logger[ 1 ] ) );
041
042    Object loggerObject = Util.invokeStaticMethod( "org.apache.log4j.Logger", "getLogger",
043      new Object[]{logger}, new Class[]{String.class} );
044
045    Object levelObject = Util.invokeStaticMethod( "org.apache.log4j.Level", "toLevel",
046      new Object[]{level}, new Class[]{String.class} );
047
048    Util.invokeInstanceMethod( loggerObject, "setLevel",
049      new Object[]{levelObject}, new Class[]{levelObject.getClass()} );
050    }
051
052  public static void logMemory( Logger logger, String message )
053    {
054    Runtime runtime = Runtime.getRuntime();
055    long freeMem = runtime.freeMemory() / 1024 / 1024;
056    long maxMem = runtime.maxMemory() / 1024 / 1024;
057    long totalMem = runtime.totalMemory() / 1024 / 1024;
058
059    logger.info( message + " (mb), free: " + freeMem + ", total: " + totalMem + ", max: " + maxMem );
060    }
061
062  public static void logCounters( Logger logger, String message, FlowProcess flowProcess )
063    {
064    String counters = flowProcess.getStringProperty( FlowRuntimeProps.LOG_COUNTERS );
065
066    if( counters == null )
067      return;
068
069    String[] split = counters.split( "," );
070
071    for( String value : split )
072      {
073      String counter[] = value.split( ":" );
074
075      logger.info( "{} {}.{}={}", message, counter[ 0 ], counter[ 1 ], flowProcess.getCounterValue( counter[ 0 ], counter[ 1 ] ) );
076      }
077    }
078  }