// Copyright 2008 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.corelib.components;
import org.apache.tapestry5.annotations.Parameter;
import org.apache.tapestry5.annotations.Property;
import org.apache.tapestry5.internal.InternalConstants;
import org.apache.tapestry5.ioc.annotations.Inject;
import org.apache.tapestry5.ioc.annotations.Symbol;
import org.apache.tapestry5.ioc.services.ExceptionAnalysis;
import org.apache.tapestry5.ioc.services.ExceptionAnalyzer;
import org.apache.tapestry5.ioc.services.ExceptionInfo;
import java.util.List;
/**
* Integral part of the default {@link org.apache.tapestry5.corelib.pages.ExceptionReport} page used to break apart and
* display the properties of the exception.
*
* @see org.apache.tapestry5.ioc.services.ExceptionAnalyzer
*/
public class ExceptionDisplay
{
/**
* Exception to report.
*/
@Parameter(required = true)
private Throwable exception;
@Inject
private ExceptionAnalyzer analyzer;
@Inject
@Symbol(InternalConstants.TAPESTRY_APP_PACKAGE_PARAM)
private String appPackage;
@Property
private ExceptionInfo info;
@Property
private String propertyName;
@Property
private StackTraceElement frame;
@Property
private List<ExceptionInfo> stack;
void setupRender()
{
ExceptionAnalysis analysis = analyzer.analyze(exception);
stack = analysis.getExceptionInfos();
}
public boolean getShowPropertyList()
{
// True if either is non-empty
return !(info.getPropertyNames().isEmpty() && info.getStackTrace().isEmpty());
}
public Object getPropertyValue()
{
return info.getProperty(propertyName);
}
public String getFrameClass()
{
if (frame.getClassName().startsWith(appPackage) && frame.getLineNumber() > 0) return "t-usercode-frame";
return null;
}
}