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Java > Open Source Codes > org > apache > pluto > portalImpl > core > DynamicInformationProviderImpl


1 /*
2  * Copyright 2003,2004 The Apache Software Foundation.
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 /*
17
18  */
19
20 package org.apache.pluto.portalImpl.core;
21
22 import java.util.HashSet JavaDoc;
23 import java.util.Iterator JavaDoc;
24
25 import javax.portlet.PortletMode;
26 import javax.portlet.WindowState;
27 import javax.servlet.ServletConfig JavaDoc;
28 import javax.servlet.http.HttpServletRequest JavaDoc;
29
30 import org.apache.pluto.om.window.PortletWindow;
31 import org.apache.pluto.portalImpl.services.config.Config;
32 import org.apache.pluto.services.information.DynamicInformationProvider;
33 import org.apache.pluto.services.information.PortletActionProvider;
34 import org.apache.pluto.services.information.PortletURLProvider;
35 import org.apache.pluto.services.information.ResourceURLProvider;
36
37
38 public class DynamicInformationProviderImpl implements DynamicInformationProvider {
39
40     private final static int NumberOfKnownMimetypes = 15;
41
42     private ServletConfig JavaDoc config;
43
44     private PortalEnvironment env;
45
46     HttpServletRequest JavaDoc request;
47
48     public DynamicInformationProviderImpl(HttpServletRequest JavaDoc request,
49                                           ServletConfig JavaDoc config)
50     {
51         this.request = request;
52         this.config = config;
53
54         env = PortalEnvironment.getPortalEnvironment(request);
55     }
56
57     // DynamicInformationProviderImpl implementation.
58
59     public PortletMode getPortletMode(PortletWindow portletWindow)
60     {
61         return env.getPortalControlParameter().getMode(portletWindow);
62     }
63
64     public PortletURLProvider getPortletURLProvider(PortletWindow portletWindow)
65     {
66         return new PortletURLProviderImpl(this, portletWindow);
67     }
68
69     public ResourceURLProvider getResourceURLProvider(PortletWindow portletWindow)
70     {
71         return new ResourceURLProviderImpl(this, portletWindow);
72     }
73
74     public PortletActionProvider getPortletActionProvider(PortletWindow portletWindow)
75     {
76         return new PortletActionProviderImpl(request, config, portletWindow);
77     }
78
79     public PortletMode getPreviousPortletMode(PortletWindow portletWindow)
80     {
81         return env.getPortalControlParameter().getPrevMode(portletWindow);
82     }
83
84     public WindowState getPreviousWindowState(PortletWindow portletWindow)
85     {
86         return env.getPortalControlParameter().getPrevState(portletWindow);
87     }
88
89     public String JavaDoc getResponseContentType()
90     {
91         return "text/html";
92     }
93
94     public Iterator JavaDoc getResponseContentTypes()
95     {
96         HashSet JavaDoc responseMimeTypes = new HashSet JavaDoc(NumberOfKnownMimetypes);
97         responseMimeTypes.add("text/html");
98
99         return responseMimeTypes.iterator();
100     }
101
102     public WindowState getWindowState(PortletWindow portletWindow)
103     {
104         return env.getPortalControlParameter().getState(portletWindow);
105     }
106
107     public boolean isPortletModeAllowed(PortletMode mode)
108     {
109         //checks whether PortletMode is supported as example
110 String JavaDoc[] supportedModes = Config.getParameters().getStrings("supported.portletmode");
111         for (int i = 0; i < supportedModes.length; i++) {
112             if (supportedModes[i].equalsIgnoreCase(mode.toString())) {
113                 return true;
114             }
115         }
116         return false;
117     }
118
119     public boolean isWindowStateAllowed(WindowState state)
120     {
121         //checks whether WindowState is supported as example
122 String JavaDoc[] supportedStates = Config.getParameters().getStrings("supported.windowstate");
123         for (int i = 0; i < supportedStates.length; i++) {
124             if (supportedStates[i].equalsIgnoreCase(state.toString())) {
125                 return true;
126             }
127         }
128         return false;
129     }
130
131 }
132
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