/*
* 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.tuscany.sca.binding.sca.axis2.impl;
import java.net.InetAddress;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URL;
import java.net.UnknownHostException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.apache.axiom.om.OMElement;
import org.apache.tuscany.sca.assembly.SCABinding;
import org.apache.tuscany.sca.binding.sca.DistributedSCABinding;
import org.apache.tuscany.sca.binding.ws.DefaultWebServiceBindingFactory;
import org.apache.tuscany.sca.binding.ws.WebServiceBinding;
import org.apache.tuscany.sca.binding.ws.axis2.Axis2ServiceProvider;
import org.apache.tuscany.sca.binding.ws.axis2.Java2WSDLHelper;
import org.apache.tuscany.sca.domain.SCADomainService;
import org.apache.tuscany.sca.host.http.ServletHost;
import org.apache.tuscany.sca.interfacedef.InterfaceContract;
import org.apache.tuscany.sca.interfacedef.java.JavaInterfaceContract;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.node.SCANode;
import org.apache.tuscany.sca.provider.ServiceBindingProvider;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
import org.apache.tuscany.sca.runtime.RuntimeComponentService;
/**
* The service binding provider for the remote sca binding implementation. Relies on the
* binding-ws-axis implementation for providing a remote message endpoint for this service
*
* @version $Rev: 563772 $ $Date: 2007-08-08 07:50:49 +0100 (Wed, 08 Aug 2007) $
*/
public class Axis2SCAServiceBindingProvider implements ServiceBindingProvider {
private final static Logger logger = Logger.getLogger(Axis2SCAServiceBindingProvider.class.getName());
private SCANode node;
private SCABinding binding;
private Axis2ServiceProvider axisProvider;
private WebServiceBinding wsBinding;
private boolean started = false;
public Axis2SCAServiceBindingProvider(SCANode node,
RuntimeComponent component,
RuntimeComponentService service,
DistributedSCABinding binding,
ServletHost servletHost,
MessageFactory messageFactory) {
this.node = node;
this.binding = binding.getSCABinding();
wsBinding = (new DefaultWebServiceBindingFactory()).createWebServiceBinding();
// Turn the java interface contract into a wsdl interface contract
InterfaceContract contract = service.getInterfaceContract();
if ((contract instanceof JavaInterfaceContract)) {
contract = Java2WSDLHelper.createWSDLInterfaceContract((JavaInterfaceContract)contract, null);
}
// Set to use the Axiom data binding
contract.getInterface().setDefaultDataBinding(OMElement.class.getName());
wsBinding.setBindingInterfaceContract(contract);
wsBinding.setName(this.binding.getName());
wsBinding.setURI(this.binding.getURI());
axisProvider = new Axis2SCAServiceProvider(component,
service,
this.binding,
wsBinding,
servletHost,
messageFactory);
if (node != null){
// get the url out of the binding and send it to the registry if
// a distributed domain is configured
SCADomainService domainService = node.getDomainService();
if (domainService != null) {
// work out what the component service name is that will be registered
// it should be the path element of the binding uri
String componentServiceName = this.binding.getURI();
try {
URI servicePath = new URI(this.binding.getURI());
componentServiceName = servicePath.getPath();
// strip any leading slash
if (componentServiceName.charAt(0) == '/'){
componentServiceName = componentServiceName.substring(1, componentServiceName.length());
}
} catch(Exception ex) {
// do nothing, the binding uri string will be used
}
// work out what the endpoint address is that the component service name will be registered
// against. Be default this is the url calculated by the web services binding but
// we have to adjust that to:
// 1. correct the host and port in the case that this is a web app as the container controlls the port
// 2. correct the host name in the case that it's localhost
String componentServiceUrlString = wsBinding.getURI();
URL componentServiceUrl;
try {
componentServiceUrl = new URL(componentServiceUrlString);
} catch (MalformedURLException ex) {
throw new IllegalStateException("Unable to conver url " +
componentServiceUrlString +
" as generated by the web service binding into a URL");
}
String originalHost = componentServiceUrl.getHost();
String newHost = originalHost;
int originalPort = componentServiceUrl.getPort();
int newPort = originalPort;
// TODO - could do with a change to the ServletHost API so that we can just ask the servlet
// host if it is controlling the URL
if (servletHost.getClass().getName().equals("WebbAppServletHost")){
// the service URL will likely be completely different to that
// calculated by the ws binding so replace it with the node url
// The node url will have been set via init parameters in the web app
URL nodeUrl = node.getNodeURL();
if (nodeUrl != null){
newHost = nodeUrl.getHost();
newPort = nodeUrl.getPort();
} else {
throw new IllegalStateException("Node running inside a webapp and node was not created with a valid node url");
}
}
// no good registering localhost as a host name when nodes are spread across
// machines
if ( newHost.equals("localhost")){
try {
newHost = InetAddress.getLocalHost().getHostName();
} catch(UnknownHostException ex) {
throw new IllegalStateException("Got unknown host while trying to get the local host name in order to regsiter service with the domain");
}
}
// replace the old with the new
componentServiceUrlString = componentServiceUrlString.replace(String.valueOf(originalPort), String.valueOf(newPort));
componentServiceUrlString = componentServiceUrlString.replace(originalHost, newHost);
try {
domainService.registerServiceEndpoint(node.getDomainURI(),
node.getNodeURI(),
componentServiceName,
SCABinding.class.getName(),
componentServiceUrlString);
} catch(Exception ex) {
logger.log(Level.WARNING,
"Unable to register service: " +
node.getDomainURI() + " " +
node.getNodeURI() + " " +
componentServiceName + " " +
SCABinding.class.getName() + " " +
componentServiceUrlString);
}
} else {
/* don't think we should thrown an exception here as it
* may be a stand alone node
throw new IllegalStateException("No service manager available for component: "+
component.getName() +
" and service: " +
service.getName());
*/
}
} else {
throw new IllegalStateException("No distributed domain available for component: "+
component.getName() +
" and service: " +
service.getName());
}
}
public InterfaceContract getBindingInterfaceContract() {
return wsBinding.getBindingInterfaceContract();
}
public boolean supportsOneWayInvocation() {
return false;
}
public void start() {
if (started) {
return;
} else {
started = true;
}
axisProvider.start();
}
public void stop() {
axisProvider.stop();
}
}