/*
* $Id: ExceptionHandlerAction.java,v 1.4 2004/09/10 03:00:21 alexnet Exp $
*
* ***** BEGIN LICENSE BLOCK *****
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and
* limitations under the License.
*
* The Original Code is JGossip forum code.
*
* The Initial Developer of the Original Code is the JResearch, Org.
* Portions created by the Initial Developer are Copyright (C) 2004
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Dmitriy Belov <bel@jresearch.org>
* .
* * ***** END LICENSE BLOCK ***** */
/*
* Created on 31.05.2004
*
*/
package org.jresearch.gossip.actions;
import java.io.PrintWriter;
import java.io.StringWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log.Logger;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ExceptionHandler;
import org.apache.struts.config.ExceptionConfig;
import org.jresearch.gossip.IConst;
import org.jresearch.gossip.exception.SystemException;
import org.jresearch.gossip.log.avalon.JGossipLog;
/**
* @author Dmitry Belov
*
*/
public class ExceptionHandlerAction extends ExceptionHandler {
private Logger log;
/**
* Default c'tor.
*/
public ExceptionHandlerAction() {
super();
try {
log = JGossipLog.getInstance().getAppLogger();
} catch (SystemException e) { /*Ignore Exception!*/}
}
/*
* (non-Javadoc)
*
* @see org.apache.struts.action.ExceptionHandler#execute(java.lang.Exception,
* org.apache.struts.config.ExceptionConfig,
* org.apache.struts.action.ActionMapping,
* org.apache.struts.action.ActionForm,
* javax.servlet.http.HttpServletRequest,
* javax.servlet.http.HttpServletResponse)
*/
public ActionForward execute(Exception ex, ExceptionConfig econf,
ActionMapping mapping, ActionForm formInstance,
HttpServletRequest request, HttpServletResponse response)
throws ServletException {
ActionForward forward = super.execute(ex, econf, mapping, formInstance,
request, response);
StringBuffer message = new StringBuffer();
if (ex instanceof SystemException) {
SystemException se = (SystemException) ex;
if (se.getNestedException() == null) {
message.append(se.getTrace());
} else {
Exception e = se.getNestedException();
message.append(e.getMessage());
message.append("\n");
message.append(se.getTrace());
}
} else {
message.append(ex.getMessage());
ex.printStackTrace();
}
logException(ex);
request.setAttribute(IConst.CONTEXT.SYSTEM_EXCEPTION_MESSAGE, message
.toString());
return forward;
}
protected void logException(Exception ex) {
StringWriter sw = new StringWriter();
ex.printStackTrace(new PrintWriter(sw));
log.error(sw.toString());
}
}