ExceptionUtils.java

package org.apache.fulcrum.yaafi.framework.util;

/*
 * 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.
 */

import java.io.PrintWriter;
import java.io.StringWriter;

/**
 * A subset of the utilities available in commons-lang-2.1 ExceptionUtils.
 *
 * @author <a href="mailto:siegfried.goeschl@it20one.at">Siegfried Goeschl</a>
 */
public class ExceptionUtils
{

    /**
     * <p>Public constructor allows an instance of <code>ExceptionUtils</code>
     * to be created, although that is not normally necessary.</p>
     */
    public ExceptionUtils()
    {
        // nothing to do
    }

    /**
     * <p>Gets the stack trace from a Throwable as a String.</p>
     *
     * @param throwable  the <code>Throwable</code> to be examined
     * @return the stack trace as generated by the exception's
     *  <code>printStackTrace(PrintWriter)</code> method
     */
    public static String getStackTrace(Throwable throwable)
    {
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter( sw, true );
        throwable.printStackTrace( pw );
        return sw.getBuffer().toString();
    }
}