001 /** 002 * 003 * Copyright 2004 Protique Ltd 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 * 017 **/ 018 package org.codehaus.activesoap.handler; 019 020 import javanet.staxutils.XMLStreamUtils; 021 import org.codehaus.activesoap.Handler; 022 import org.codehaus.activesoap.MessageExchange; 023 import org.codehaus.activesoap.HandlerRegistry; 024 import org.codehaus.activesoap.HandlerRegistry; 025 import org.codehaus.activesoap.util.DocumentFilterXMLStreamReader; 026 import org.codehaus.activesoap.util.XMLStreamHelper; 027 028 import javax.xml.namespace.QName; 029 import javax.xml.stream.XMLStreamConstants; 030 import javax.xml.stream.XMLStreamReader; 031 import javax.xml.stream.XMLStreamWriter; 032 033 /** 034 * Looks up the correct {@link Handler} to use 035 * based on the {@link QName} of the root element 036 * 037 * @version $Revision: 1.10 $ 038 */ 039 public class QNameHandler implements Handler, XMLStreamConstants { 040 private HandlerRegistry handlerRegistry; 041 042 public QNameHandler() { 043 this(new DefaultHandlerRegistry()); 044 } 045 046 public QNameHandler(HandlerRegistry handlerRegistry) { 047 this.handlerRegistry = handlerRegistry; 048 } 049 050 public HandlerRegistry getHandlerRegistry() { 051 return handlerRegistry; 052 } 053 054 055 public void invoke(MessageExchange exchange) throws Exception { 056 XMLStreamReader in = exchange.getIn(); 057 XMLStreamWriter out = exchange.getOut(); 058 if (XMLStreamHelper.skipToStartOfElement(in)) { 059 QName name = in.getName(); 060 Handler child = handlerRegistry.getHandler(name); 061 if (child != null) { 062 child.invoke(exchange.newInstance(new DocumentFilterXMLStreamReader(name, in), out)); 063 } 064 else { 065 Handler defaultHandler = handlerRegistry.getDefaultHandler(); 066 if (defaultHandler != null) { 067 defaultHandler.invoke(exchange.newInstance(new DocumentFilterXMLStreamReader(name, in), out)); 068 } 069 else { 070 // lets skip the content 071 XMLStreamUtils.skipElement(in); 072 } 073 } 074 } 075 } 076 }