content: /*
   * $Id$
   * 
   * This file is part of the MoSKito software project
   * that is hosted at http://moskito.dev.java.net.
   * 
   * All MoSKito files are distributed under MIT License:
   * 
   * Copyright (c) 2006 The MoSKito Project Team.
   * 
   * Permission is hereby granted, free of charge,
   * to any person obtaining a copy of this software and
   * associated documentation files (the "Software"), 
   * to deal in the Software without restriction, 
   * including without limitation the rights to use,
   * copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit 
   * persons to whom the Software is furnished to do so, 
   * subject to the following conditions:
   * 
   * The above copyright notice and this permission notice
   * shall be included in all copies 
   * or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY
   * OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT 
   * LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
   * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 
   * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
   * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
   * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
   */	
  package net.anotheria.moskito.core.predefined;
  
  import net.anotheria.moskito.core.calltrace.CurrentlyTracedCall;
  import net.anotheria.moskito.core.calltrace.RunningTraceContainer;
  import net.anotheria.moskito.core.calltrace.TraceStep;
  import net.anotheria.moskito.core.calltrace.TracedCall;
  import net.anotheria.moskito.core.dynamic.IOnDemandCallHandler;
  import net.anotheria.moskito.core.producers.IStats;
  import net.anotheria.moskito.core.producers.IStatsProducer;
  
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.util.concurrent.atomic.AtomicLong;
  
  /**
   * This CallHandler prints out all requests that passes throw it to the standart out.
   * @author lrosenberg
   *
   */
  public class ServiceStatsCallHandlerWithCallSysout implements IOnDemandCallHandler {
  	/**
  	 * Counter for calls.
  	 */
  	private AtomicLong callCounter = new AtomicLong(0);
  	/**
  	 * Counter for instances.
  	 */
  	private static AtomicLong instanceCounter = new AtomicLong(0);
  	/**
  	 * Id of the current instance.
  	 */
  	private long instanceId;
  	/**
  	 * Call counter for all instances.
  	 */
  	private static AtomicLong overallCallCounter = new AtomicLong(0);
  	/**
  	 * Creates a new ServiceStatsCallHandlerWithCallSysout.
  	 */
  	public ServiceStatsCallHandlerWithCallSysout(){
  		instanceId = instanceCounter.incrementAndGet();
  	}
  
  	@Override public Object invoke(Object target, Object[] args, Method method, Class<?> targetClass, Class<?>[] declaredExceptions, IStats aDefaultStats, IStats aMethodStats, IStatsProducer producer) throws Throwable {
  		String callId = overallCallCounter.incrementAndGet()+"-"+instanceId + '-' +callCounter.incrementAndGet();
  		
  		ServiceStats defaultStats = (ServiceStats)aDefaultStats;
  		ServiceStats methodStats = (ServiceStats)aMethodStats;
  		
  		//now create debug info
  		StringBuilder debugOutPreCall = new StringBuilder("--- MSK III ");
  		try{
  			debugOutPreCall.append(callId);
  			debugOutPreCall.append(" --- Calling ");
  			debugOutPreCall.append(targetClass.getSimpleName());
  			debugOutPreCall.append('.');
  			debugOutPreCall.append(method.getName());
  			debugOutPreCall.append('(');
  			if (args!=null){
  				for (int i=0; i<args.length; i++){
  					debugOutPreCall.append(args[i] == null ? "null" : args[i]);
  					if (i<args.length-1)
  						debugOutPreCall.append(", ");
  				}
  			}
  			debugOutPreCall.append(')');
  		}catch(Exception e){
  			debugOutPreCall.append(" ERROR ").append(e.getMessage());
  		}
  		
  		System.out.println(debugOutPreCall.toString());
  		
  		StringBuilder debugOutPostCall = new StringBuilder("--- MSK III ").append(callId).append(" --- Return ");
  		
  		defaultStats.addRequest();
  		methodStats.addRequest();
  		TracedCall aRunningUseCase = RunningTraceContainer.getCurrentlyTracedCall();
  		TraceStep currentElement = null;
  		CurrentlyTracedCall runningUseCase = aRunningUseCase.callTraced() ?
  				(CurrentlyTracedCall)aRunningUseCase : null; 
  		if (runningUseCase !=null)
  			currentElement = runningUseCase.startStep(new StringBuilder(producer.getProducerId()).append('.').append(method.getName()).toString(), producer, method.getName());
  		long startTime = System.nanoTime();
  		try{
  			Object ret = method.invoke(target, args);
  			debugOutPostCall.append(ret);
  			long exTime = System.nanoTime() - startTime;
  			defaultStats.addExecutionTime(exTime);
  			methodStats.addExecutionTime(exTime);
  			return ret;
  		}catch(InvocationTargetException e){
  			defaultStats.notifyError(e.getTargetException());
  			methodStats.notifyError();
  			if (currentElement!=null)
  				currentElement.setAborted();
  			debugOutPostCall.append("ERR (E) ").append(e.getCause().getMessage()).append(' ').append(e.getCause().toString());
  			throw e.getCause();
  		}catch(Throwable t){
  			defaultStats.notifyError(t);
  			methodStats.notifyError();
  			if (currentElement!=null)
  				currentElement.setAborted();
  			debugOutPostCall.append("ERR (T) ").append(t.getMessage()).append(' ').append(t.toString());
  			throw t;
  		}finally{
  			defaultStats.notifyRequestFinished();
  			methodStats.notifyRequestFinished();
  			System.out.println(debugOutPostCall.toString());
  			if (currentElement!=null)
  				currentElement.setDuration(System.currentTimeMillis()-startTime);
  			if (runningUseCase !=null)
  				runningUseCase.endStep();
  		}
  	}
  } 
  