/*
* Copyright 2006 Stephen J. McConnell.
*
* 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.acme;
import java.util.logging.Logger;
import java.util.logging.Level;
import net.dpml.annotation.Component;
import static net.dpml.annotation.LifestylePolicy.SINGLETON;
/**
* A minimal component.
*
* @author <a href="@PUBLISHER-URL@">@PUBLISHER-NAME@</a>
* @version @PROJECT-VERSION@
*/
@Component( lifestyle=SINGLETON )
public class Demo
{
/**
* Utility interface used to resolve internal parts.
*/
public interface Context
{
/**
* Return the loop count
* @return the count
*/
int getAccessCount();
/**
* Return the loop count
* @return the count
*/
int getThreadCount();
}
/**
* Utility interface used to resolve internal parts.
*/
public interface Parts
{
/**
* Return the gizmo.
* @return the gizmo
*/
Gizmo getGizmo();
}
private final Parts m_parts;
private final Logger m_logger;
private final Context m_context;
//------------------------------------------------------------------
// constructor
//------------------------------------------------------------------
/**
* Creation of a new object using a supplied logging channel, context and
* internal parts.
* @param logger the logging channel
* @param context the deployment context
* @param parts the internal parts
* @exception Exception if an error occurs
*/
public Demo( final Logger logger, final Context context, Parts parts ) throws Exception
{
m_logger = logger;
m_parts = parts;
m_context = context;
int n = context.getThreadCount();
for( int i=0; i<n; i++ )
{
Thread thread = new Accessor();
thread.setName( "" + i );
thread.start();
}
}
/**
* Internal thread uses to simulate multi-thread access.
*/
private class Accessor extends Thread
{
/**
* Run the thread.
*/
public void run()
{
int n = m_context.getAccessCount();
Gizmo gizmo = m_parts.getGizmo();
for( int i=0; i<n; i++ )
{
int id = System.identityHashCode( gizmo );
if( m_logger.isLoggable( Level.INFO ) )
{
m_logger.info(
" gizmo ("
+ this
+ ") ["
+ id
+ "]" );
}
}
}
}
}
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