/*************************************************************************
* Copyright 2009-2012 Eucalyptus Systems, Inc.
*
* This program 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; version 3 of the License.
*
* 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/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/
package com.eucalyptus.ws.server;
import java.util.Collection;
import java.util.Map;
import java.util.concurrent.Callable;
import org.apache.log4j.Logger;
import org.jboss.netty.channel.Channel;
import org.jboss.netty.channel.ChannelFuture;
import org.jboss.netty.channel.ChannelFutureListener;
import org.jboss.netty.channel.ChannelHandler;
import com.eucalyptus.context.Contexts;
import com.eucalyptus.records.Logs;
import com.eucalyptus.ws.StackConfiguration;
import com.google.common.base.Joiner;
import com.google.common.collect.Maps;
import com.google.common.util.concurrent.Callables;
public class MessageStatistics {
private static Logger LOG = Logger.getLogger( MessageStatistics.class );
private static final Map<Integer, RequestRecord> requestStatistics = Maps.newConcurrentMap( );
private static class HandlerRecord implements Callable<Long> {
private final String handlerClassName;
private final Long startTime = System.currentTimeMillis( );
private Long endTime;
private HandlerRecord( Class<? extends ChannelHandler> class1 ) {
this.handlerClassName = class1.toString( );
}
@Override
public String toString( ) {
StringBuilder builder = new StringBuilder( );
Long time = ( ( this.endTime == null ? System.currentTimeMillis( ) : this.endTime ) - this.startTime );
builder.append( " " );
builder.append( this.handlerClassName ).append( ": " ).append( time ).append( " msec" );
return builder.toString( );
}
@Override
public Long call( ) throws Exception {
Logs.extreme( ).debug( "HandlerRecord:" + this.handlerClassName
+ " "
+ ( ( this.endTime == null ? this.endTime = System.currentTimeMillis( ) : this.endTime ) - this.startTime )
+ "msec" );
return this.endTime;
}
}
private static class RequestRecord {
private final Map<Class, HandlerRecord> handlerUpstreamStats = Maps.newHashMap( );
private final Map<Class, HandlerRecord> handlerDownstreamStats = Maps.newHashMap( );
String type;
private final long creationTime = System.currentTimeMillis( );
public Collection<HandlerRecord> values( ) {
return this.handlerUpstreamStats.values( );
}
@Override
public String toString( ) {
StringBuilder builder = new StringBuilder( );
String typeName = ( this.type == null ? "unknown" : this.type );
builder.append( typeName ).append( " " ).append( Joiner.on( "\n" + typeName ).join( this.handlerUpstreamStats.values( ) ) );
builder.append( typeName ).append( " " ).append( Joiner.on( "\n" + typeName ).join( this.handlerDownstreamStats.values( ) ) );
builder.append( typeName ).append( " " ).append( System.currentTimeMillis( ) - this.creationTime ).append( " msec" );
return builder.toString( );
}
}
public static final void startRequest( final Channel channel ) {
if ( StackConfiguration.STATISTICS ) {
final RequestRecord record = new RequestRecord( );
requestStatistics.put( channel.getId( ), record );
channel.getCloseFuture( ).addListener( new ChannelFutureListener( ) {
@Override
public void operationComplete( ChannelFuture future ) throws Exception {
LOG.info( requestStatistics.remove( channel.getId( ) ) );
}
} );
}
}
public static final <T extends ChannelHandler> Callable<Long> startUpstream( Channel channel, T handler ) {
Integer correlationId = channel.getId( );
if ( StackConfiguration.STATISTICS && requestStatistics.containsKey( correlationId ) ) {
RequestRecord record = requestStatistics.get( correlationId );
if ( record.type == null ) {
try {
record.type = Contexts.lookup( channel ).getRequest( ).getClass( ).getSimpleName( );
} catch ( Exception ex ) {}
}
HandlerRecord handlerRecord = new HandlerRecord( handler.getClass( ) );
record.handlerUpstreamStats.put( handler.getClass( ), handlerRecord );
return handlerRecord;
} else {
return Callables.returning( 0L );
}
}
public static final <T extends ChannelHandler> Callable<Long> startDownstream( Channel channel, T handler ) {
Integer correlationId = channel.getId( );
if ( StackConfiguration.STATISTICS && requestStatistics.containsKey( correlationId ) ) {
RequestRecord record = requestStatistics.get( correlationId );
HandlerRecord handlerRecord = new HandlerRecord( handler.getClass( ) );
record.handlerDownstreamStats.put( handler.getClass( ), handlerRecord );
return handlerRecord;
} else {
return Callables.returning( 0L );
}
}
}