1 package org.apache.turbine.services.jsonrpc;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.io.CharArrayWriter;
23
24 import javax.servlet.http.HttpServletRequest;
25 import javax.servlet.http.HttpSession;
26
27 import org.apache.commons.logging.Log;
28 import org.apache.commons.logging.LogFactory;
29 import org.apache.turbine.services.TurbineBaseService;
30
31 import com.metaparadigm.jsonrpc.JSONRPCBridge;
32
33 /**
34 * This is a service that will respond to JSON-RPC calls.
35 *
36 * @author <a href="mailto:seade@backstagetech.com.au">Scott Eade</a>
37 * @version $Id: TurbineJsonRpcService.java 712125 2008-11-07 13:47:28Z seade $
38 */
39 public class TurbineJsonRpcService
40 extends TurbineBaseService
41 implements JsonRpcService
42 {
43 /** Log. */
44 private static Log log = LogFactory.getLog(TurbineJsonRpcService.class);
45
46 /** The key used to store the bridge in the session. */
47 public static final String JSON_BRIDGE_KEY = "JSONRPCBridge";
48 /**
49 * The debug option for the bridge can be enabled by enabling debug level
50 * logging for this class.
51 */
52 private static final boolean DEBUG = log.isDebugEnabled();
53
54 public Object processCall(CharArrayWriter cdata,
55 JSONRPCBridge json_bridge, HttpServletRequest request)
56 {
57 return JSONProcessor.processCall(cdata, json_bridge, request);
58 }
59
60 public void registerObjectGlobal(String key, Object value)
61 {
62 JSONRPCBridge.getGlobalBridge().setDebug(DEBUG);
63 JSONRPCBridge.getGlobalBridge().registerObject(key, value);
64 }
65
66 public void registerObject(HttpSession session, String key, Object value)
67 {
68 JSONRPCBridge json_bridge = getBridge(session);
69 json_bridge.setDebug(DEBUG);
70 json_bridge.registerObject(key, value);
71 }
72
73 public JSONRPCBridge getBridge(HttpSession session)
74 {
75 JSONRPCBridge json_bridge = (JSONRPCBridge) session.getAttribute(JSON_BRIDGE_KEY);
76 if (json_bridge == null)
77 {
78 json_bridge = new JSONRPCBridge();
79 session.setAttribute(JSON_BRIDGE_KEY, json_bridge);
80 }
81 return json_bridge;
82 }
83
84 public void clearBridge(HttpSession session)
85 {
86 session.removeAttribute(JSON_BRIDGE_KEY);
87 }
88
89 // The following is modeled on XmlRpcSercice.
90 // /**
91 // * Initialize the JsonRpcService.
92 // *
93 // * @throws InitializationException Something went wrong in the init stage.
94 // */
95 // public void init() throws InitializationException
96 // {
97 // //Configuration conf = getConfiguration();
98 // setInit(true);
99 // }
100 //
101 // /**
102 // * Shuts down this service, stopping running threads.
103 // */
104 // public void shutdown()
105 // {
106 // setInit(false);
107 // }
108
109 }