| /* |
| * Copyright 2001-2004 The Apache Software Foundation. |
| * |
| * Licensed 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.ws.scout.transport; |
| |
| import java.lang.reflect.Method; |
| import java.net.URI; |
| import java.util.Properties; |
| |
| import javax.naming.InitialContext; |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.ws.scout.registry.RegistryException; |
| import org.apache.ws.scout.util.XMLUtils; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| /** |
| * RMI Message transport class. |
| * |
| * <p>This transpor calls jUDDI using RMI.</p> |
| * |
| * @author Kurt Stam (kurt.stam@redhat.com) |
| */ |
| public class RMITransport implements Transport |
| { |
| // private reference to the jUDDI logger |
| private static Log log = LogFactory.getLog(RMITransport.class); |
| |
| /** |
| * Sends an element and returns an element. |
| */ |
| public Element send(Element request,URI endpointURI) |
| throws RegistryException |
| { |
| Element response = null; |
| |
| if (log.isDebugEnabled()) { |
| log.debug("\nRequest message:\n" + XMLUtils.convertNodeToXMLString(request)); |
| log.debug("Calling " + endpointURI + " using rmi"); |
| } |
| |
| try { |
| String host = endpointURI.getHost(); |
| int port = endpointURI.getPort(); |
| String scheme = endpointURI.getScheme(); |
| String service = endpointURI.getPath(); |
| String className = endpointURI.getQuery(); |
| String methodName = endpointURI.getFragment(); |
| Properties env = new Properties(); |
| //It be a lot nicer if this is configured through properties, but for now |
| //I'd like to keep the changes localized, so this seems pretty reasonable. |
| String factoryInitial = SecurityActions.getProperty("java.naming.factory.initial"); |
| if (factoryInitial==null) factoryInitial = "org.jnp.interfaces.NamingContextFactory"; |
| String factoryURLPkgs = SecurityActions.getProperty("java.naming.factory.url.pkgs"); |
| if (factoryURLPkgs==null) factoryURLPkgs = "org.jboss.naming"; |
| env.setProperty("java.naming.factory.initial", factoryInitial); |
| env.setProperty("java.naming.factory.url.pkgs", factoryURLPkgs); |
| env.setProperty("java.naming.provider.url", scheme + "://" + host + ":" + port); |
| log.debug("Initial Context using env=" + env.toString()); |
| InitialContext context = new InitialContext(env); |
| log.debug("Calling service=" + service + ", Class = " + className + ", Method=" + methodName); |
| //Looking up the object (i.e. Publish) |
| Object requestHandler = context.lookup(service); |
| //Loading up the stub |
| Class<?> c = Class.forName(className); |
| //Getting a handle to method we want to call (i.e. publish.publish(Element element)) |
| Method method = c.getMethod(methodName, Element.class); |
| //Calling that method |
| Node node = (Node) method.invoke(requestHandler, request); |
| //The result is in the first element |
| response = (Element) node.getFirstChild(); |
| } |
| catch (Exception ex) { |
| throw new RegistryException(ex); |
| } |
| if (log.isDebugEnabled()) { |
| log.debug("\nResponse message:\n" + XMLUtils.convertNodeToXMLString(response)); |
| } |
| return response; |
| } |
| |
| /** |
| * Sends an XML, responds with an XML. |
| */ |
| public String send(String request,URI endpointURI) |
| throws RegistryException |
| { |
| String response = null; |
| log.debug("\nRequest message:\n" + request); |
| try { |
| DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); |
| DocumentBuilder parser = factory.newDocumentBuilder(); |
| Document document = parser.parse(request); |
| Element element = document.getDocumentElement(); |
| response= XMLUtils.convertNodeToXMLString(send(element, endpointURI)); |
| } catch (Exception ex) { |
| throw new RegistryException(ex); |
| } |
| log.debug("\nResponse message:\n" + response); |
| return response; |
| } |
| |
| |
| } |