001package org.apache.turbine.services.jsonrpc; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import java.io.CharArrayWriter; 023 024import javax.servlet.http.HttpServletRequest; 025import javax.servlet.http.HttpSession; 026 027import org.apache.turbine.services.TurbineBaseService; 028import org.jabsorb.JSONRPCBridge; 029 030 031/** 032 * This is a service that will respond to JSON-RPC calls. 033 * 034 * @author <a href="mailto:seade@backstagetech.com.au">Scott Eade</a> 035 * @version $Id$ 036 */ 037public class TurbineJsonRpcService 038 extends TurbineBaseService 039 implements JsonRpcService 040{ 041 /** The key used to store the bridge in the session. */ 042 public static final String JSON_BRIDGE_KEY = "JSONRPCBridge"; 043 044 @Override 045 public Object processCall(CharArrayWriter cdata, 046 JSONRPCBridge json_bridge, HttpServletRequest request) 047 { 048 return JSONProcessor.processCall(cdata, json_bridge, request); 049 } 050 051 @Override 052 public void registerObjectGlobal(String key, Object value) 053 { 054 JSONRPCBridge.getGlobalBridge().registerObject(key, value); 055 } 056 057 @Override 058 public void registerObject(HttpSession session, String key, Object value) 059 { 060 JSONRPCBridge json_bridge = getBridge(session); 061 json_bridge.registerObject(key, value); 062 } 063 064 @Override 065 public JSONRPCBridge getBridge(HttpSession session) 066 { 067 JSONRPCBridge json_bridge = (JSONRPCBridge) session.getAttribute(JSON_BRIDGE_KEY); 068 if (json_bridge == null) 069 { 070 json_bridge = new JSONRPCBridge(); 071 session.setAttribute(JSON_BRIDGE_KEY, json_bridge); 072 } 073 return json_bridge; 074 } 075 076 @Override 077 public void clearBridge(HttpSession session) 078 { 079 session.removeAttribute(JSON_BRIDGE_KEY); 080 } 081 082// The following is modeled on XmlRpcSercice. 083// /** 084// * Initialize the JsonRpcService. 085// * 086// * @throws InitializationException Something went wrong in the init stage. 087// */ 088// public void init() throws InitializationException 089// { 090// //Configuration conf = getConfiguration(); 091// setInit(true); 092// } 093// 094// /** 095// * Shuts down this service, stopping running threads. 096// */ 097// public void shutdown() 098// { 099// setInit(false); 100// } 101 102}