Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
PageService |
|
| 1.0;1 |
1 | // Copyright 2004, 2005 The Apache Software Foundation | |
2 | // | |
3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
4 | // you may not use this file except in compliance with the License. | |
5 | // You may obtain a copy of the License at | |
6 | // | |
7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
8 | // | |
9 | // Unless required by applicable law or agreed to in writing, software | |
10 | // distributed under the License is distributed on an "AS IS" BASIS, | |
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
12 | // See the License for the specific language governing permissions and | |
13 | // limitations under the License. | |
14 | ||
15 | package org.apache.tapestry.engine; | |
16 | ||
17 | import java.io.IOException; | |
18 | import java.util.HashMap; | |
19 | import java.util.Map; | |
20 | ||
21 | import org.apache.hivemind.util.Defense; | |
22 | import org.apache.tapestry.IRequestCycle; | |
23 | import org.apache.tapestry.Tapestry; | |
24 | import org.apache.tapestry.services.LinkFactory; | |
25 | import org.apache.tapestry.services.ResponseRenderer; | |
26 | import org.apache.tapestry.services.ServiceConstants; | |
27 | ||
28 | /** | |
29 | * Basic server for creating a link to another page in the application. | |
30 | * | |
31 | * @author Howard Lewis Ship | |
32 | * @since 1.0.9 | |
33 | */ | |
34 | ||
35 | 0 | public class PageService implements IEngineService |
36 | { | |
37 | /** @since 4.0 */ | |
38 | private ResponseRenderer _responseRenderer; | |
39 | ||
40 | /** @since 4.0 */ | |
41 | private LinkFactory _linkFactory; | |
42 | ||
43 | public ILink getLink(boolean post, Object parameter) | |
44 | { | |
45 | 0 | Defense.isAssignable(parameter, String.class, "parameter"); |
46 | ||
47 | 0 | Map parameters = new HashMap(); |
48 | ||
49 | 0 | parameters.put(ServiceConstants.PAGE, parameter); |
50 | ||
51 | 0 | return _linkFactory.constructLink(this, post, parameters, true); |
52 | ||
53 | } | |
54 | ||
55 | public void service(IRequestCycle cycle) throws IOException | |
56 | { | |
57 | 0 | String pageName = cycle.getParameter(ServiceConstants.PAGE); |
58 | ||
59 | // At one time, the page service required a session, but that is no longer necessary. | |
60 | // Users can now bookmark pages within a Tapestry application. Pages | |
61 | // can implement validate() and throw a PageRedirectException if they don't | |
62 | // want to be accessed this way. For example, most applications have a concept | |
63 | // of a "login" and have a few pages that don't require the user to be logged in, | |
64 | // and other pages that do. The protected pages should redirect to a login page. | |
65 | ||
66 | 0 | cycle.activate(pageName); |
67 | ||
68 | 0 | _responseRenderer.renderResponse(cycle); |
69 | 0 | } |
70 | ||
71 | public String getName() | |
72 | { | |
73 | 0 | return Tapestry.PAGE_SERVICE; |
74 | } | |
75 | ||
76 | /** @since 4.0 */ | |
77 | public void setResponseRenderer(ResponseRenderer responseRenderer) | |
78 | { | |
79 | 0 | _responseRenderer = responseRenderer; |
80 | 0 | } |
81 | ||
82 | /** @since 4.0 */ | |
83 | public void setLinkFactory(LinkFactory linkFactory) | |
84 | { | |
85 | 0 | _linkFactory = linkFactory; |
86 | 0 | } |
87 | } |