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Java > Open Source Codes > org > apache > jetspeed > modules > actions > portlets > MediaUpdateAction


1 /*
2  * Copyright 2000-2004 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 package org.apache.jetspeed.modules.actions.portlets;
17
18 import org.apache.jetspeed.modules.actions.portlets.security.SecurityConstants;
19 import org.apache.jetspeed.om.registry.MediaTypeEntry;
20 import org.apache.jetspeed.om.registry.RegistryEntry;
21 import org.apache.jetspeed.portal.portlets.VelocityPortlet;
22 import org.apache.jetspeed.services.Registry;
23 import org.apache.turbine.util.RunData;
24 import org.apache.velocity.context.Context;
25
26 /**
27  * This action enables to update the media entries
28  *
29  * @author <a HREF="mailto:caius1440@hotmail.com">Jeremy Ford</a>
30  * @version $Id: MediaUpdateAction.java,v 1.2 2004/02/23 02:56:58 jford Exp $
31  */
32 public class MediaUpdateAction extends RegistryUpdateAction
33 {
34     private static final String JavaDoc MEDIA_UPDATE_PANE = "MediaForm";
35     
36     public MediaUpdateAction()
37     {
38         registryEntryName = "media_type_name";
39         registry = Registry.MEDIA_TYPE;
40         pane = MEDIA_UPDATE_PANE;
41     }
42
43     /**
44      * @see org.apache.jetspeed.modules.actions.portlets.VelocityPortletAction#buildNormalContext(org.apache.jetspeed.portal.portlets.VelocityPortlet, org.apache.velocity.context.Context, org.apache.turbine.util.RunData)
45      */
46     protected void buildNormalContext(
47         VelocityPortlet portlet,
48         Context context,
49         RunData rundata)
50         throws Exception JavaDoc
51     {
52         super.buildNormalContext(portlet, context, rundata);
53                 
54         String JavaDoc mode =
55             rundata.getParameters().getString(SecurityConstants.PARAM_MODE);
56         
57         if (mode != null
58             && (mode.equals(SecurityConstants.PARAM_MODE_DELETE)
59                 || mode.equals(SecurityConstants.PARAM_MODE_UPDATE)))
60         {
61             String JavaDoc mediaTypeName =
62                 rundata.getParameters().getString(registryEntryName);
63             MediaTypeEntry mediaEntry =
64                 (MediaTypeEntry) Registry.getEntry(
65                     registry,mediaTypeName);
66             context.put("entry", mediaEntry);
67         }
68     }
69     
70     /**
71      * @see org.apache.jetspeed.modules.actions.portlets.RegistryUpdateAction#updateRegistryEntry(org.apache.turbine.util.RunData, org.apache.jetspeed.om.registry.RegistryEntry)
72      */
73     protected void updateRegistryEntry(RunData rundata, RegistryEntry registryEntry) throws Exception JavaDoc
74     {
75         super.updateRegistryEntry(rundata, registryEntry);
76         
77         updateMediaTypeEntry(rundata, (MediaTypeEntry) registryEntry);
78     }
79
80     /**
81      * @param rundata
82      * @param mediaTypeName
83      */
84     protected void updateMediaTypeEntry(
85         RunData rundata,
86         MediaTypeEntry mediaTypeEntry)
87     {
88         String JavaDoc charSet = rundata.getParameters().getString("charset");
89         String JavaDoc mimeType = rundata.getParameters().getString("mime_type");
90
91         if(hasChanged(mediaTypeEntry.getCharacterSet(), charSet))
92         {
93             mediaTypeEntry.setCharacterSet(charSet);
94         }
95         if(hasChanged(mediaTypeEntry.getMimeType(), mimeType))
96         {
97             mediaTypeEntry.setMimeType(mimeType);
98         }
99     }
100
101     /**
102       * Populates the user's temp storage with form data
103       * @param rundata The turbine rundata context for this request.
104       */
105     protected void resetForm(RunData rundata)
106     {
107         super.resetForm(rundata);
108         String JavaDoc charSet = rundata.getParameters().getString("charset");
109         String JavaDoc mimeType = rundata.getParameters().getString("mime_type");
110         
111         rundata.getUser().setTemp("charset", charSet);
112         rundata.getUser().setTemp("mime_type", mimeType);
113     }
114     
115     /**
116      * Clears the temporary storage of any data that was used
117      * @param rundata The turbine rundata context for this request.
118      */
119     protected void clearUserData(RunData rundata)
120     {
121         super.clearUserData(rundata);
122         rundata.getUser().removeTemp("charset");
123         rundata.getUser().removeTemp("mime_type");
124     }
125 }
126
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