// Copyright 2009 The Apache Software Foundation

 //

 // 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.apache.tapestry5.internal.services;

 import org.apache.tapestry5.internal.InternalConstants;

 import org.apache.tapestry5.ioc.annotations.Inject;

 import org.apache.tapestry5.ioc.annotations.Symbol;

 import org.apache.tapestry5.services.StackTraceElementAnalyzer;

 import org.apache.tapestry5.services.StackTraceElementClassConstants;

 /**

  * Identifies frames for application classes.

  *

  * @since 5.1.0.0

  */

 public class ApplicationStackTraceElementAnalyzer implements StackTraceElementAnalyzer

 {

     private final String appPackage;

     public ApplicationStackTraceElementAnalyzer(

             @Inject @Symbol(InternalConstants.TAPESTRY_APP_PACKAGE_PARAM)

             String appPackage)

     {

         this.appPackage = appPackage;

     }

     public String classForFrame(StackTraceElement frame)

     {

         return frame.getClassName().startsWith(appPackage) && frame.getLineNumber() > 0

                ? StackTraceElementClassConstants.USER_CODE

                : null;

     }

 }