/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.ode.jbi;
import javax.jbi.servicedesc.ServiceEndpoint;
import javax.xml.namespace.QName;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.ode.bpel.iapi.EndpointReference;
import org.apache.ode.bpel.iapi.EndpointReferenceContext;
import org.apache.ode.utils.DOMUtils;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
/**
* Implementation of the ODE {@link org.apache.ode.bpel.iapi.EndpointReferenceContext}
* interface used by the BPEL engine to convert XML descriptions of endpoint
* references (EPRs) into Java object representations. In the JBI context all
* endpoint references are considered to be JBI
* {@link javax.jbi.servicedesc.ServiceEndpoint}s are resolved by using the
* {@link javax.jbi.component.ComponentContext#resolveEndpointReference(org.w3c.dom.DocumentFragment)}
* method. Note that is is possible to resolve both "internal" and "external"
* endpoint in this manner. The schema to the internal end-point representation
* is described on page 50 of the JBI specification 1.0.
*
*/
public class EndpointReferenceContextImpl implements EndpointReferenceContext {
private static final Log __log = LogFactory.getLog(EndpointReferenceContextImpl.class);
private final OdeContext _ode;
static final QName JBI_EPR = new QName("http://java.sun.com/jbi/end-point-reference", "end-point-reference");
public EndpointReferenceContextImpl(OdeContext ode) {
_ode = ode;
}
public EndpointReference resolveEndpointReference(Element epr) {
QName elname = new QName(epr.getNamespaceURI(),epr.getLocalName());
if (__log.isDebugEnabled()) {
__log.debug( "resolveEndpointReference:\n" + prettyPrint( epr ) );
}
if (!elname.equals(EndpointReference.SERVICE_REF_QNAME))
throw new IllegalArgumentException("EPR root element "
+ elname + " should be " + EndpointReference.SERVICE_REF_QNAME);
Document doc = DOMUtils.newDocument();
DocumentFragment fragment = doc.createDocumentFragment();
NodeList children = epr.getChildNodes();
for (int i = 0 ; i < children.getLength(); ++i)
fragment.appendChild(doc.importNode(children.item(i), true));
ServiceEndpoint se = _ode.getContext().resolveEndpointReference(fragment);
if (se == null)
return null;
return new JbiEndpointReference(se);
}
public EndpointReference convertEndpoint(QName eprType, Element epr) {
Document doc = DOMUtils.newDocument();
DocumentFragment fragment = doc.createDocumentFragment();
NodeList children = epr.getChildNodes();
for (int i = 0 ; i < children.getLength(); ++i)
fragment.appendChild(doc.importNode(children.item(i), true));
ServiceEndpoint se = _ode.getContext().resolveEndpointReference(fragment);
if (se == null)
return null;
return new JbiEndpointReference(se, eprType);
}
public static QName convertClarkQName(String name) {
int pos = name.indexOf('}');
if ( name.startsWith("{") && pos > 0 ) {
String ns = name.substring(1,pos);
String lname = name.substring(pos+1, name.length());
return new QName( ns, lname );
}
return new QName( name );
}
private String prettyPrint( Element el ) {
try {
return DOMUtils.prettyPrint( el );
} catch ( java.io.IOException ioe ) {
return ioe.getMessage();
}
}
}