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Java > Open Source Codes > org > apache > pluto > portlet > admin > model > PageRegistryXao


1 /*
2  * Copyright 2003,2004,2005 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.pluto.portlet.admin.model;
17
18 import java.io.FileReader JavaDoc;
19 import java.io.FileWriter JavaDoc;
20 import java.util.Collection JavaDoc;
21 import java.util.Iterator JavaDoc;
22
23 import org.apache.pluto.portalImpl.om.page.impl.FragmentImpl;
24 import org.apache.pluto.portalImpl.om.page.impl.PortalImpl;
25 import org.apache.pluto.portlet.admin.BaseAdminObject;
26 import org.apache.pluto.portlet.admin.PlutoAdminException;
27 import org.apache.pluto.portlet.admin.util.PlutoAdminContext;
28 import org.exolab.castor.mapping.Mapping;
29 import org.exolab.castor.xml.Marshaller;
30 import org.exolab.castor.xml.Unmarshaller;
31
32 /**
33  *
34  * This class is used to access and store data in the pageregistry.xml file.
35  * It uses Castor and is loosely based on the
36  * org.apache.services.pageregistry.PageRegistryServiceFileImpl
37  * class in Pluto's 'portal' module.
38  *
39  * @author Craig Doremus
40  */
41 public class PageRegistryXao extends BaseAdminObject {
42
43
44     // default configuration values
45 public final static String JavaDoc CONFIG_FILE = "WEB-INF/data/pageregistry.xml";
46     public final static String JavaDoc DEFAULT_MAPPING = "WEB-INF/data/xml/pageregistrymapping.xml";
47     private final static String JavaDoc CLASS_NAME = "PageRegistryXao";
48     // Castor mapping file
49 private Mapping mapping = null;
50
51     /**
52      *
53      */
54     public PageRegistryXao() throws Exception JavaDoc {
55         super(CLASS_NAME);
56         init();
57     }
58     public void init () throws Exception JavaDoc
59     {
60          final String JavaDoc METHOD_NAME = "init()";
61
62         String JavaDoc _mapping = PlutoAdminContext.getInstance().getPlutoHome() + "/" + DEFAULT_MAPPING;
63
64         this.mapping = new Mapping();
65         try
66         {
67             this.mapping.loadMapping(_mapping);
68         }
69         catch (Exception JavaDoc e)
70         {
71             logError(METHOD_NAME, "Failed to load mapping file "+_mapping,e);
72             throw e;
73         }
74
75     }
76
77
78     public void save(PortalImpl page) throws Exception JavaDoc {
79         final String JavaDoc METHOD_NAME = "save(PortalImpl)";
80       String JavaDoc filename = PlutoAdminContext.getInstance().getPlutoHome() + "/" + CONFIG_FILE;
81         logDebug(METHOD_NAME, "Registry file to save: " + filename);
82
83         FileWriter JavaDoc writer = new FileWriter JavaDoc(filename);
84
85         Marshaller marshaller = new Marshaller(writer);
86
87         marshaller.setMapping(this.mapping);
88
89         marshaller.marshal(page);
90     }
91
92     public PortalImpl load() throws Exception JavaDoc
93     {
94         final String JavaDoc METHOD_NAME = "load()";
95
96         String JavaDoc filename = PlutoAdminContext.getInstance().getPlutoHome() + "/" + CONFIG_FILE;
97         logDebug(METHOD_NAME, "File to load: " + filename);
98
99         Unmarshaller unmarshaller = new Unmarshaller(this.mapping);
100         unmarshaller.setMapping(this.mapping);
101
102         PortalImpl pages = (PortalImpl)unmarshaller.unmarshal(new FileReader JavaDoc(filename));
103         return pages;
104     }
105
106     public boolean pageExists(String JavaDoc page) {
107         final String JavaDoc METHOD_NAME = "pageExists(page)";
108         boolean exists = false;
109         Collection JavaDoc frags = null;
110         try {
111         PortalImpl portal = load();
112         frags = portal.getFragments();
113             } catch (Exception JavaDoc e) {
114             logError(METHOD_NAME, e);
115                 throw new PlutoAdminException(e);
116             }
117             Iterator JavaDoc iter = frags.iterator();
118         while (iter.hasNext()) {
119             FragmentImpl frag = (FragmentImpl) iter.next();
120             String JavaDoc type = null;
121             String JavaDoc name = null;
122             if (frag != null) {
123                 type = frag.getType();
124                 name = frag.getName();
125             }
126             if(type != null && type.equalsIgnoreCase("page") && name != null && name.equalsIgnoreCase(page)) {
127                 exists = true;
128                 break;
129             }
130         }
131         return exists;
132     }
133 }
134
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