    001// Copyright 2011 The Apache Software Foundation
    002//
    003// Licensed under the Apache License, Version 2.0 (the "License");
    004// you may not use this file except in compliance with the License.
    005// You may obtain a copy of the License at
    006//
    007// http://www.apache.org/licenses/LICENSE-2.0
    008//
    009// Unless required by applicable law or agreed to in writing, software
    010// distributed under the License is distributed on an "AS IS" BASIS,
    011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012// See the License for the specific language governing permissions and
    013// limitations under the License.
    014
    015package org.apache.tapestry5.ioc.internal.services;
    016
    017import org.apache.tapestry5.plastic.ClassType;
    018import org.apache.tapestry5.plastic.PlasticClassEvent;
    019import org.apache.tapestry5.plastic.PlasticClassListener;
    020import org.slf4j.Logger;
    021import org.slf4j.Marker;
    022import org.slf4j.MarkerFactory;
    023
    024public class PlasticClassListenerLogger implements PlasticClassListener
    025{
    026    private final Logger logger;
    027
    028    public PlasticClassListenerLogger(Logger logger)
    029    {
    030        this.logger = logger;
    031    }
    032
    033    @Override
    034    public void classWillLoad(PlasticClassEvent event)
    035    {
    036        if (logger.isDebugEnabled())
    037        {
    038            Marker marker = MarkerFactory.getMarker(event.getPrimaryClassName());
    039
    040            String extendedClassName = event.getType() == ClassType.PRIMARY ? event.getPrimaryClassName() : String
    041                    .format("%s (%s for %s)", event.getClassName(), event.getType(), event.getPrimaryClassName());
    042
    043            logger.debug(marker,
    044                    String.format("Loading class %s:\n%s", extendedClassName, event.getDissasembledBytecode()));
    045        }
    046    }
    047}