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/*******************************************************************************
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*Copyright (c) 2009 Eucalyptus Systems, Inc.
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, only version 3 of the License.
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* This file is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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* Please contact Eucalyptus Systems, Inc., 130 Castilian
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* Dr., Goleta, CA 93101 USA or visit <http://www.eucalyptus.com/licenses/>
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* if you need additional information or have any questions.
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* This file may incorporate work covered under the following copyright and
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* Software License Agreement (BSD License)
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* Copyright (c) 2008, Regents of the University of California
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* All rights reserved.
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* Redistribution and use of this software in source and binary forms, with
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* or without modification, are permitted provided that the following
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. USERS OF
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* THIS SOFTWARE ACKNOWLEDGE THE POSSIBLE PRESENCE OF OTHER OPEN SOURCE
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* LICENSED MATERIAL, COPYRIGHTED MATERIAL OR PATENTED MATERIAL IN THIS
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* SOFTWARE, AND IF ANY SUCH MATERIAL IS DISCOVERED THE PARTY DISCOVERING
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* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, SANTA
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* BARBARA WHO WILL THEN ASCERTAIN THE MOST APPROPRIATE REMEDY, WHICH IN
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* THE REGENTS' DISCRETION MAY INCLUDE, WITHOUT LIMITATION, REPLACEMENT
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* OF THE CODE SO IDENTIFIED, LICENSING OF THE CODE SO IDENTIFIED, OR
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* WITHDRAWAL OF THE CODE CAPABILITY TO THE EXTENT NEEDED TO COMPLY WITH
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* ANY SUCH LICENSES OR RIGHTS.
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*******************************************************************************/
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* Author: chris grzegorczyk <grze@eucalyptus.com>
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package com.eucalyptus.ws.handlers;
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import org.apache.axiom.om.OMElement;
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import org.apache.axiom.om.OMNamespace;
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import org.apache.log4j.Logger;
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import org.jboss.netty.channel.ChannelHandlerContext;
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import org.jboss.netty.channel.ChannelPipelineCoverage;
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import org.jboss.netty.channel.MessageEvent;
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import com.eucalyptus.binding.Binding;
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import com.eucalyptus.binding.BindingException;
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import com.eucalyptus.binding.BindingManager;
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import com.eucalyptus.http.MappingHttpMessage;
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import com.eucalyptus.http.MappingHttpRequest;
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import com.eucalyptus.http.MappingHttpResponse;
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import com.eucalyptus.records.Logs;
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import com.eucalyptus.util.Exceptions;
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import com.eucalyptus.ws.WebServicesException;
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import edu.ucsb.eucalyptus.msgs.BaseMessage;
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import edu.ucsb.eucalyptus.msgs.EucalyptusErrorMessageType;
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import edu.ucsb.eucalyptus.msgs.ExceptionResponseType;
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@ChannelPipelineCoverage( "all" )
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public class BindingHandler extends MessageStackHandler {
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private static Logger LOG = Logger.getLogger( BindingHandler.class );
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private Binding binding;
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private String namespace;
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private final Binding defaultBinding;
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public BindingHandler( ) {
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this.defaultBinding = null;
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this.namespace = null;
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public BindingHandler( final Binding binding ) {
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this.binding = binding;
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this.defaultBinding = binding;
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this.namespace = null;
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public void incomingMessage( final MessageEvent event ) throws Exception {
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if ( event.getMessage( ) instanceof MappingHttpMessage ) {
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MappingHttpMessage httpMessage = ( MappingHttpMessage ) event.getMessage( );
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BaseMessage msg = null;
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Class msgType = null;
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String namespace = null;
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OMElement elem = httpMessage.getOmMessage( );
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OMNamespace omNs = elem.getNamespace( );
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namespace = omNs.getNamespaceURI( );
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this.binding = BindingManager.getBinding( BindingManager.sanitizeNamespace( namespace ) );
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msgType = this.binding.getElementClass( httpMessage.getOmMessage( ).getLocalName( ) );
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} catch ( BindingException ex ) {
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if ( this.defaultBinding != null ) {
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this.namespace = namespace;
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this.binding = this.defaultBinding;
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msgType = this.binding.getElementClass( httpMessage.getOmMessage( ).getLocalName( ) );
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} catch ( Exception ex1 ) {
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throw new WebServicesException( "Failed to find binding for namespace: " + namespace
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+ ex.getMessage( ), ex );
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} catch ( Exception e1 ) {
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LOG.error( e1.getMessage( ) + " while attempting to bind: " + httpMessage.getOmMessage( ) );
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Logs.extreme( ).error( httpMessage.getSoapEnvelope( ).toString( ), e1 );
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if ( this.binding == null ) {
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throw new WebServicesException( e1 );
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throw new WebServicesException( "Failed to find binding for namespace: " + namespace
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+ e1.getMessage( ), e1 );
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if ( httpMessage instanceof MappingHttpRequest ) {
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if ( msgType != null ) {
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msg = ( BaseMessage ) this.binding.fromOM( httpMessage.getOmMessage( ), msgType );
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msg = ( BaseMessage ) this.binding.fromOM( httpMessage.getOmMessage( ) );
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msg = ( BaseMessage ) this.binding.fromOM( httpMessage.getOmMessage( ) );
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} catch ( Exception e1 ) {
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msg = ( BaseMessage ) this.binding.fromOM( httpMessage.getOmMessage( ), this.namespace );
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} catch ( Exception ex ) {
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LOG.warn( "FAILED TO PARSE:\n" + httpMessage.getMessageString( ) );
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throw new WebServicesException( e1 );
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msg.setCorrelationId( httpMessage.getCorrelationId( ) );
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httpMessage.setMessage( msg );
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public void outgoingMessage( final ChannelHandlerContext ctx, final MessageEvent event ) throws Exception {
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if ( event.getMessage( ) instanceof MappingHttpMessage ) {
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MappingHttpMessage httpMessage = ( MappingHttpMessage ) event.getMessage( );
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if ( httpMessage.getMessage( ) instanceof EucalyptusErrorMessageType || httpMessage.getMessage( ) == null ) {
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} else if ( httpMessage.getMessage( ) instanceof ExceptionResponseType ) {
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ExceptionResponseType msg = ( ExceptionResponseType ) httpMessage.getMessage( );
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String createFaultDetails = Logs.isExtrrreeeme( )
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? Exceptions.string( msg.getException( ) )
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: msg.getException( ).getMessage( );
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omElem = Binding.createFault( msg.getRequestType( ), msg.getMessage( ), createFaultDetails );
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if ( httpMessage instanceof MappingHttpResponse ) {
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( ( MappingHttpResponse ) httpMessage ).setStatus( msg.getHttpStatus( ) );
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Class targetClass = httpMessage.getMessage( ).getClass( );
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while ( !targetClass.getSimpleName( ).endsWith( "Type" ) ) {
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targetClass = targetClass.getSuperclass( );
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Class responseClass = ClassLoader.getSystemClassLoader( ).loadClass( targetClass.getName( ) );
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omElem = this.binding.toOM( httpMessage.getMessage( ), this.namespace );
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} catch ( BindingException ex ) {
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omElem = BindingManager.getDefaultBinding( ).toOM( httpMessage.getMessage( ) );
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} catch ( Exception ex ) {
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Logs.exhaust( ).debug( ex, ex );
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httpMessage.setOmMessage( omElem );