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1.1
date	2001.07.03.23.21.51;	author ms;	state Exp;
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1.1
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@added VelocityEventCartridge to handle exceptions thrown in templates that stop rendering of pages. Need to more intelligently handle them but otherwise the page would jsut stop rendering. Coupled to BaseHelmServlet. Minor change in StartPage.vm that saves a full iteration over the projects in the context
@
text
@/* ================================================================
 * Copyright (c) 2001 CollabNet.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * 3. The end-user documentation included with the redistribution, if
 * any, must include the following acknowlegement: "This product includes
 * software developed by CollabNet (http://www.collab.net/)."
 * Alternately, this acknowlegement may appear in the software itself, if
 * and wherever such third-party acknowlegements normally appear.
 * 
 * 4. The hosted project names must not be used to endorse or promote
 * products derived from this software without prior written
 * permission. For written permission, please contact info@@collab.net.
 * 
 * 5. Products derived from this software may not use the "Tigris" name
 * nor may "Tigris" appear in their names without prior written
 * permission of CollabNet.
 * 
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL COLLABNET OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ================================================================
 * This software consists of voluntary contributions made by many
 * individuals on behalf of CollabNet.
 */

package org.tigris.helm.tool;

import org.apache.velocity.context.Context;
import org.apache.velocity.app.event.EventCartridge;
import org.apache.velocity.app.event.MethodExceptionEventHandler;

/** 
 * Simple handler for exceptions thrown inside VM parsing.
 * @@author <a href="mailto:ms@@collab.net">Michael Salmon</a>
 * @@version $Id$
 */

public class VelocityEventCartridge
    implements MethodExceptionEventHandler
{
    public Context init (Context context)
    {
        EventCartridge ec = new EventCartridge();
        ec.addEventHandler(this);
        ec.attachToContext(context);
        return context;
    }

    public Object methodException (Class claz, String method, Exception e)
    {
        System.err.println("Exception in " + claz.getName() + ", " +  e.toString());
        return "";
    }
} 
@
