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Java > Open Source Codes > org > outerj > daisy > emailer > serverimpl > EmailerHttpConnector


1 /*
2  * Copyright 2004 Outerthought bvba and Schaubroeck nv
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package org.outerj.daisy.emailer.serverimpl;
17
18 import org.apache.avalon.framework.service.Serviceable;
19 import org.apache.avalon.framework.service.ServiceManager;
20 import org.apache.avalon.framework.service.ServiceException;
21 import org.apache.avalon.framework.activity.Initializable;
22 import org.apache.avalon.framework.activity.Disposable;
23 import org.apache.avalon.framework.logger.LogEnabled;
24 import org.apache.avalon.framework.logger.Logger;
25 import org.outerj.daisy.httpconnector.HttpConnector;
26 import org.outerj.daisy.httpconnector.DaisyUserPrincipal;
27 import org.outerj.daisy.httpconnector.HttpUtil;
28 import org.outerj.daisy.httpconnector.BadRequestException;
29 import org.outerj.daisy.repository.Repository;
30 import org.outerj.daisy.emailer.Emailer;
31 import org.mortbay.http.handler.AbstractHttpHandler;
32 import org.mortbay.http.HttpRequest;
33 import org.mortbay.http.HttpResponse;
34 import org.mortbay.http.HttpException;
35
36 import java.io.IOException JavaDoc;
37
38 /**
39  * Exposes the functionality of the Emailer via HTTP. This is done by registering
40  * an extra HttpHandler on the HttpConnector of the repository server.
41  *
42  * @avalon.component version="1.0" name="emailer-httpconnector" lifestyle="singleton"
43  */
44 public class EmailerHttpConnector implements Serviceable, Initializable, Disposable, LogEnabled {
45     private HttpConnector httpConnector;
46     private EmailerHttpHandler httpHandler = new EmailerHttpHandler();
47     private Logger requestErrorLogger;
48
49     public void enableLogging(Logger logger) {
50         this.requestErrorLogger = logger.getChildLogger("request-errors");
51     }
52
53     /**
54      * @avalon.dependency key="httpconnector" type="org.outerj.daisy.httpconnector.HttpConnector"
55      */
56     public void service(ServiceManager serviceManager) throws ServiceException {
57         httpConnector = (HttpConnector)serviceManager.lookup("httpconnector");
58     }
59
60     public void initialize() throws Exception JavaDoc {
61         httpConnector.addHandler(httpHandler);
62     }
63
64     public void dispose() {
65         httpConnector.removeHandler(httpHandler);
66     }
67
68     private class EmailerHttpHandler extends AbstractHttpHandler {
69         public void handle(String JavaDoc pathInContext, String JavaDoc pathParams, HttpRequest request, HttpResponse response)
70                 throws HttpException, IOException JavaDoc {
71             String JavaDoc path = request.getPath();
72             try {
73                 Repository repository = ((DaisyUserPrincipal)request.getUserPrincipal()).getRepository();
74
75                 if (path.equals("/emailer")) {
76                     if (request.getMethod().equals(HttpRequest.__POST)) {
77                         String JavaDoc to = HttpUtil.getStringParam(request, "to");
78                         String JavaDoc subject = HttpUtil.getStringParam(request, "subject");
79                         String JavaDoc messageText = HttpUtil.getStringParam(request, "messageText");
80
81                         Emailer emailer = (Emailer)repository.getExtension("Emailer");
82                         emailer.send(to, subject, messageText);
83                         response.commit();
84                     } else {
85                         response.sendError(HttpResponse.__405_Method_Not_Allowed);
86                     }
87                 }
88             } catch (BadRequestException e) {
89                 // doesn't need to be logged
90 HttpUtil.sendCustomError(e.getMessage(), HttpResponse.__400_Bad_Request, response);
91             } catch (Throwable JavaDoc e) {
92                 requestErrorLogger.error("Error processing request " + path, e);
93                 HttpUtil.sendCustomError(e, HttpResponse.__202_Accepted, response);
94             }
95         }
96     }
97 }
98
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