    001// Copyright 2009 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.internal.services;
    016
    017import org.apache.tapestry5.services.StackTraceElementAnalyzer;
    018import org.apache.tapestry5.services.StackTraceElementClassConstants;
    019
    020/**
    021 * Identifies frames for various proxy classes (class name starts with a '$' and there's no line number.  They are
    022 * ommitted.
    023 *
    024 * @since 5.1.0.0
    025 */
    026public class ProxiesStackTraceElementAnalyzer implements StackTraceElementAnalyzer
    027{
    028    public String classForFrame(StackTraceElement frame)
    029    {
    030        return frame.getClassName().startsWith("$") && frame.getLineNumber() <= 0
    031               ? StackTraceElementClassConstants.OMITTED
    032               : null;
    033    }
    034}