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Java > Open Source Codes > org > apache > jetspeed > services > jsp > tags > URILookupTag


1 package org.apache.jetspeed.services.jsp.tags;
2
3 /*
4  * Copyright 2000-2004 The Apache Software Foundation.
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18
19 import javax.servlet.jsp.JspException JavaDoc;
20 import javax.servlet.jsp.PageContext JavaDoc;
21 import javax.servlet.jsp.tagext.TagSupport JavaDoc;
22
23 // Turbine Classes
24 import org.apache.turbine.util.RunData;
25 import org.apache.turbine.services.jsp.JspService;
26
27 // Jetsped Classes
28 import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
29 import org.apache.jetspeed.services.logging.JetspeedLogger;
30 import org.apache.jetspeed.util.URILookup;
31 import org.apache.jetspeed.om.registry.PortletEntry;
32 import org.apache.jetspeed.services.Registry;
33 import org.apache.jetspeed.portal.PortletURIManager;
34
35 /**
36  * Supporting class for the uriLookup tag.
37  * Returns the URL for the respective link
38  *
39  * @author <a HREF="mailto:ingo@raleigh.ibm.com">Ingo Schuster</a>
40  */
41 public class URILookupTag extends TagSupport JavaDoc
42 {
43     /**
44      * Static initialization of the logger for this class
45      */
46     private static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(URILookupTag.class.getName());
47     
48     /**
49      * type parameter defines type of URI that is requested
50      */
51     private String JavaDoc type;
52
53     /**
54      * The setter for type parameter
55      */
56     public void setType(String JavaDoc type)
57     {
58         this.type = type;
59     }
60
61     public int doStartTag() throws JspException JavaDoc
62     {
63         RunData data = (RunData)pageContext.getAttribute(JspService.RUNDATA, PageContext.REQUEST_SCOPE);
64
65         try
66         {
67             String JavaDoc result = null;
68
69             /* HOME */
70             if (type.equalsIgnoreCase( "Home" )) {
71               result = URILookup.getURI(URILookup.TYPE_HOME, URILookup.SUBTYPE_NONE, data);
72             }
73
74             /* LOGIN */
75             if (type.equalsIgnoreCase( "Login" )) {
76               result = URILookup.getURI(URILookup.TYPE_LOGIN, URILookup.SUBTYPE_NONE, data);
77             }
78
79             /* ENROLLMENT */
80             if (type.equalsIgnoreCase( "Enrollment" )) {
81               result = URILookup.getURI(URILookup.TYPE_ENROLLMENT, URILookup.SUBTYPE_NONE, data);
82             }
83
84             /* LOGOUT */
85             if (type.equalsIgnoreCase( "Logout" )) {
86               result = URILookup.getURI(URILookup.TYPE_HOME, URILookup.SUBTYPE_LOGOUT, data);
87             }
88
89             /* CUSTOMIZE */
90             if (type.equalsIgnoreCase( "Customize") ) {
91               result = URILookup.getURI(URILookup.TYPE_CUSTOMIZE, URILookup.SUBTYPE_NONE, data);
92             }
93
94             /* EDIT ACCOUNT */
95             if (type.equalsIgnoreCase( "EditAccount" )) {
96               result = URILookup.getURI(URILookup.TYPE_EDIT_ACCOUNT, URILookup.SUBTYPE_NONE, data);
97             }
98
99             /* APPLICATIONS */
100             if (type.equalsIgnoreCase( "Applications" )) {
101               PortletEntry entry = null;
102               entry = (PortletEntry)Registry.getEntry( Registry.PORTLET, "Applications" );
103               result = PortletURIManager.getPortletMaxURI( entry, data ).toString();
104             }
105
106             /* BASE URL */
107             if (type.equalsIgnoreCase( "BaseURL" )) {
108               result = URILookup.getWebAppBaseDirURI( data );
109             }
110
111             if (result != null) {
112               pageContext.getOut().print(result);
113             } else {
114               throw new Exception JavaDoc( "jetspeed-URILookup tag: Unknown parameter!");
115             }
116         }
117         catch (Exception JavaDoc e)
118         {
119             String JavaDoc message = "Error processing uriLookup-tag, parameter: "+ type;
120             logger.error(message, e);
121             try
122             {
123                 data.getOut().print( "Error processing uriLookup-tag, parameter: "+ type);
124             }
125             catch(java.io.IOException JavaDoc ioe) {}
126         }
127         return EVAL_BODY_INCLUDE;
128     }
129
130 }
131
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