/*
* Copyright 2002-2007,2009 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 com.opensymphony.xwork2.interceptor;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Serializable;
/**
* <!-- START SNIPPET: javadoc -->
*
* A simple wrapper around an exception, providing an easy way to print out the stack trace of the exception as well as
* a way to get a handle on the exception itself.
*
* <!-- END SNIPPET: javadoc -->
*
* @author Matthew E. Porter (matthew dot porter at metissian dot com)
*/
public class ExceptionHolder implements Serializable {
private static final long serialVersionUID = 1L;
private Exception exception;
/**
* Holds the given exception
*
* @param exception the exception to hold.
*/
public ExceptionHolder(Exception exception) {
this.exception = exception;
}
/**
* Gets the held exception
*
* @return the held exception
*/
public Exception getException() {
return this.exception;
}
/**
* Gets the held exception stack trace using {@link Exception#printStackTrace()}.
*
* @return stack trace
*/
public String getExceptionStack() {
String exceptionStack = null;
if (getException() != null) {
try (StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw)) {
getException().printStackTrace(pw);
exceptionStack = sw.toString();
} catch (IOException e) {
// Ignore exception generating stack trace.
}
}
return exceptionStack;
}
}