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 org.codehaus.activesoap.Handler; 021 import org.codehaus.activesoap.MessageExchange; 022 023 import javax.xml.stream.XMLStreamReader; 024 import javax.xml.stream.XMLStreamWriter; 025 026 /** 027 * Echos the block of XML straight to the output such as for pass-through handlers 028 * or forwarding services and routers. 029 * 030 * @version $Revision: 1.7 $ 031 */ 032 public class EchoHandler implements Handler { 033 034 private static EchoHandler instance = new EchoHandler(); 035 036 public static EchoHandler getInstance() { 037 return instance; 038 } 039 040 public void invoke(MessageExchange exchange) throws Exception { 041 XMLStreamReader in = exchange.getIn(); 042 XMLStreamWriter out = exchange.getOut(); 043 exchange.copy(exchange.getIn(), exchange.getOut()); 044 } 045 }