/*
* Copyright (c) 2012, Niclas Hedhman. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.qi4j.metrics.yammer;
import com.yammer.metrics.Metrics;
import com.yammer.metrics.reporting.AbstractPollingReporter;
import com.yammer.metrics.reporting.ConsoleReporter;
import com.yammer.metrics.reporting.CsvReporter;
import java.io.File;
import java.io.PrintStream;
import java.util.concurrent.TimeUnit;
import org.qi4j.api.common.Visibility;
import org.qi4j.bootstrap.Assembler;
import org.qi4j.bootstrap.AssemblyException;
import org.qi4j.bootstrap.ModuleAssembly;
public class YammerMetricsAssembler
implements Assembler
{
private AbstractPollingReporter reporter;
/**
* Default constructor only creates a Yammer JMXReporter
*/
public YammerMetricsAssembler()
{
}
/**
* Creates a ConsoleReporter and sends the output to the given PrintStream.
*
* @param out The PrintStream to receive the output.
* @param period The reporting interval.
* @param timeunit The TimeUnit for the reporting interval.
*/
public YammerMetricsAssembler( PrintStream out, long period, TimeUnit timeunit )
{
reporter = new ConsoleReporter( out );
try
{
reporter.start( period, timeunit );
}
catch( RuntimeException e )
{
e.printStackTrace();
throw e;
}
}
/**
* Creates a CSV reporter and writes the result to the given directory
*
* @param outDirectory The directory to write the result to.
* @param period The reporting interval.
* @param timeunit The TimeUnit for the reporting interval.
*/
public YammerMetricsAssembler( File outDirectory, long period, TimeUnit timeunit )
{
reporter = new CsvReporter( Metrics.defaultRegistry(), outDirectory );
reporter.start( period, timeunit );
}
@Override
public void assemble( ModuleAssembly module )
throws AssemblyException
{
module.services( YammerMetricsProvider.class )
.instantiateOnStartup()
.visibleIn( Visibility.application );
}
/**
* Closing any Reporter that has been started.
*/
public void shutdown()
{
reporter.shutdown();
}
}