/*******************************************************************************
*Copyright (c) 2009 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, only version 3 of the License.
*
*
* This file 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., 130 Castilian
* Dr., Goleta, CA 93101 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.
*******************************************************************************/
/*
* Author: chris grzegorczyk <grze@eucalyptus.com>
*/
package com.eucalyptus.ws.handlers;
import org.apache.axiom.om.OMElement;
import org.apache.axiom.om.OMNamespace;
import org.apache.log4j.Logger;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelPipelineCoverage;
import org.jboss.netty.channel.MessageEvent;
import com.eucalyptus.binding.Binding;
import com.eucalyptus.binding.BindingManager;
import com.eucalyptus.http.MappingHttpMessage;
import com.eucalyptus.http.MappingHttpRequest;
import com.eucalyptus.ws.WebServicesException;
import edu.ucsb.eucalyptus.msgs.EucalyptusErrorMessageType;
import edu.ucsb.eucalyptus.msgs.BaseMessage;
@ChannelPipelineCoverage( "all" )
public class BindingHandler extends MessageStackHandler {
private static Logger LOG = Logger.getLogger( BindingHandler.class );
private Binding binding;
public BindingHandler( ) {
super( );
}
public BindingHandler( final Binding binding ) {
this.binding = binding;
}
@Override
public void incomingMessage( final ChannelHandlerContext ctx, final MessageEvent event ) throws Exception {
if ( event.getMessage( ) instanceof MappingHttpMessage ) {
MappingHttpMessage httpMessage = ( MappingHttpMessage ) event.getMessage( );
BaseMessage msg = null;
OMElement elem = httpMessage.getOmMessage( );
OMNamespace omNs = elem.getNamespace( );
String namespace = omNs.getNamespaceURI( );
Class msgType = null;
try {
this.binding = BindingManager.getBinding( BindingManager.sanitizeNamespace( namespace ) );
msgType = this.binding.getElementClass( httpMessage.getOmMessage( ).getLocalName( ) );
} catch ( Exception e1 ) {
if( this.binding == null ) {
throw new WebServicesException(e1);
} else {
throw new WebServicesException( "Failed to find binding for namespace: " + namespace + " due to: " + e1.getMessage( ), e1 );
}
}
try {
if(httpMessage instanceof MappingHttpRequest ) {
if( msgType != null ) {
msg = ( BaseMessage ) this.binding.fromOM( httpMessage.getOmMessage( ), msgType );
} else {
msg = ( BaseMessage ) this.binding.fromOM( httpMessage.getOmMessage( ) );
}
} else {
msg = ( BaseMessage ) this.binding.fromOM( httpMessage.getOmMessage( ) );
}
} catch ( Exception e1 ) {
LOG.fatal( "FAILED TO PARSE:\n" + httpMessage.getMessageString( ) );
throw new WebServicesException(e1);
}
msg.setCorrelationId( httpMessage.getCorrelationId( ) );
httpMessage.setMessage( msg );
}
}
@Override
public void outgoingMessage( final ChannelHandlerContext ctx, final MessageEvent event ) throws Exception {
if ( event.getMessage( ) instanceof MappingHttpMessage ) {
MappingHttpMessage httpRequest = ( MappingHttpMessage ) event.getMessage( );
if( httpRequest.getMessage( ) instanceof EucalyptusErrorMessageType || httpRequest.getMessage( ) == null ) {
return;
}
Class targetClass = httpRequest.getMessage( ).getClass( );
while ( !targetClass.getSimpleName( ).endsWith( "Type" ) )
targetClass = targetClass.getSuperclass( );
Class responseClass = ClassLoader.getSystemClassLoader().loadClass( targetClass.getName( ) );
ctx.setAttachment( responseClass );
OMElement omElem = this.binding.toOM( httpRequest.getMessage( ) );
httpRequest.setOmMessage( omElem );
}
}
}