| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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; |
| } |
| |
| } |