    001    // Copyright 2009, 2010 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
    015    package org.apache.tapestry5.internal.services;
    016
    017    import org.apache.tapestry5.internal.InternalConstants;
    018    import org.apache.tapestry5.ioc.annotations.Symbol;
    019    import org.apache.tapestry5.services.StackTraceElementAnalyzer;
    020    import org.apache.tapestry5.services.StackTraceElementClassConstants;
    021
    022    /**
    023     * Identifies frames for application classes.
    024     *
    025     * @since 5.1.0.0
    026     */
    027    public class ApplicationStackTraceElementAnalyzer implements StackTraceElementAnalyzer
    028    {
    029        private final String appPackage;
    030
    031        public ApplicationStackTraceElementAnalyzer(@Symbol(InternalConstants.TAPESTRY_APP_PACKAGE_PARAM)
    032        String appPackage)
    033        {
    034            this.appPackage = appPackage;
    035        }
    036
    037        public String classForFrame(StackTraceElement frame)
    038        {
    039            return frame.getClassName().startsWith(appPackage) && frame.getLineNumber() > 0 ? StackTraceElementClassConstants.USER_CODE
    040                    : null;
    041        }
    042    }