/*************************************************************************
* Copyright 2009-2012 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*
* Please contact Eucalyptus Systems, Inc., 6755 Hollister Ave., Goleta
* CA 93117, USA or visit http://www.eucalyptus.com/licenses/ if you need
* additional information or have any questions.
*
* This file may incorporate work covered under the following copyright
* and permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
*
* Redistribution and use of this software in source and binary forms,
* with or without modification, are permitted provided that the
* following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS 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 THE
* COPYRIGHT OWNER OR 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. USERS OF THIS SOFTWARE ACKNOWLEDGE
* THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE LICENSED MATERIAL,
* COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS SOFTWARE,
* AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA,
* SANTA BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY,
* WHICH IN THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION,
* REPLACEMENT OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO
* IDENTIFIED, OR WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT
* NEEDED TO COMPLY WITH ANY SUCH LICENSES OR RIGHTS.
************************************************************************/
package com.eucalyptus.objectstorage.pipeline.handlers;
import org.apache.log4j.Logger;
import org.jboss.netty.channel.ChannelEvent;
import org.jboss.netty.channel.ChannelFutureListener;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.handler.codec.http.HttpHeaders;
import org.jboss.netty.handler.codec.http.HttpResponseStatus;
import com.eucalyptus.http.MappingHttpResponse;
import com.eucalyptus.objectstorage.msgs.ObjectStorageErrorMessageType;
import com.eucalyptus.objectstorage.util.OSGUtil;
import com.eucalyptus.ws.handlers.MessageStackHandler;
import edu.ucsb.eucalyptus.msgs.BaseMessage;
import edu.ucsb.eucalyptus.msgs.EucalyptusErrorMessageType;
import edu.ucsb.eucalyptus.msgs.ExceptionResponseType;
public class ObjectStorageOutboundExceptionHandler extends MessageStackHandler {
private static Logger LOG = Logger.getLogger(ObjectStorageOutboundExceptionHandler.class);
@Override
public void handleDownstream(ChannelHandlerContext ctx, ChannelEvent channelEvent) throws Exception {
if (channelEvent instanceof MessageEvent) {
final MessageEvent msgEvent = (MessageEvent) channelEvent;
this.outgoingMessage(ctx, msgEvent);
}
ctx.sendDownstream(channelEvent);
}
@Override
public void outgoingMessage(ChannelHandlerContext ctx, MessageEvent event) throws Exception {
if (event.getMessage() instanceof MappingHttpResponse) {
MappingHttpResponse httpResponse = (MappingHttpResponse) event.getMessage();
BaseMessage msg = (BaseMessage) httpResponse.getMessage();
if (msg instanceof EucalyptusErrorMessageType) {
EucalyptusErrorMessageType errorMessage = (EucalyptusErrorMessageType) msg;
BaseMessage errMsg = OSGUtil.convertErrorMessage(errorMessage);
if (errMsg instanceof ObjectStorageErrorMessageType) {
ObjectStorageErrorMessageType walrusErrorMsg = (ObjectStorageErrorMessageType) errMsg;
httpResponse.setStatus(walrusErrorMsg.getStatus());
httpResponse.setHeader(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
event.getFuture().addListener(ChannelFutureListener.CLOSE);
}
httpResponse.setMessage(errMsg);
} else if (msg instanceof ExceptionResponseType) {
ExceptionResponseType errorMessage = (ExceptionResponseType) msg;
BaseMessage errMsg = OSGUtil.convertErrorMessage(errorMessage);
if (errMsg instanceof ObjectStorageErrorMessageType) {
ObjectStorageErrorMessageType walrusErrorMsg = (ObjectStorageErrorMessageType) errMsg;
httpResponse.setStatus(walrusErrorMsg.getStatus());
httpResponse.setHeader(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
event.getFuture().addListener(ChannelFutureListener.CLOSE);
} else {
// If unknown type, set 500
httpResponse.setStatus(HttpResponseStatus.INTERNAL_SERVER_ERROR);
}
httpResponse.setMessage(errMsg);
}
}
}
}