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1   /*
2    * Copyright 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.pluto.driver.deploy.impl;
17  
18  import java.io.File;
19  import java.io.IOException;
20  import java.io.RandomAccessFile;
21  import java.util.Iterator;
22  
23  import org.apache.pluto.descriptors.portlet.PortletAppDD;
24  import org.apache.pluto.descriptors.portlet.PortletDD;
25  import org.apache.pluto.descriptors.services.PortletAppDescriptorService;
26  import org.apache.pluto.driver.deploy.PortalRegistrarService;
27  
28  /***
29   * Service Implementation used by the command line deployer
30   * to register portlet applications with the Portal.
31   *
32   * @author <a href="ddewolf@apache.org">David H. DeWolf</a>
33   * @version 1.0
34   * @since Mar 6, 2005
35   */
36  public class PortletEntityRegistryRegistrarService
37   implements PortalRegistrarService {
38  
39      private static final String REGISTRY_FILE =
40          "WEB-INF/data/portletentityregistry.xml";
41  
42      private File portalRoot;
43  
44      /***
45       * Default Constructor wich provides the root of
46       * the portal application.
47       *
48       * @param portalRoot
49       */
50      public PortletEntityRegistryRegistrarService(File portalRoot) {
51          this.portalRoot = portalRoot;
52      }
53  
54      /***
55       * Register the portlet application represented by the
56       * descriptor service provided.
57       * @param service service used to obtain desc info.
58       */
59      public void register(PortletAppDescriptorService service)
60      throws IOException {
61          System.out.println("<VERBOSE> Registering application '"+service.getContextPath()+"'");
62  
63          File file = new File(portalRoot, REGISTRY_FILE);
64          RandomAccessFile ras = new RandomAccessFile(file, "rw");
65          long length = ras.length();
66          byte[] contentByte = new byte[(int) length];
67          ras.read(contentByte);
68          String contentString = new String(contentByte);
69          long pos = contentString.indexOf("<definition-id>"+service.getContextPath()+"</definition-id>");
70          if(pos > 0) {
71              System.out.println("<VERBOSE> Found previous entity registery; Registration Aborted.");
72              ras.close();
73              return;
74          }
75          pos = contentString.lastIndexOf("</portlet-entity-registry>");
76          ras.seek(pos);
77          ras.writeBytes("    <application id=\"" + service.getContextPath() + "\">\n");
78          ras.writeBytes("        <definition-id>" + service.getContextPath() + "</definition-id>\n");
79  
80          PortletAppDD app = service.read();
81          PortletDD p;
82          Iterator i = app.getPortlets().iterator();
83          while(i.hasNext()) {
84              p = (PortletDD)i.next();
85              ras.writeBytes("        <portlet id=\"" + p.getPortletName() + "\">\n");
86              ras.writeBytes("            <definition-id>" + service.getContextPath()
87                                 + "." + p.getPortletName() + "</definition-id>\n");
88              ras.writeBytes("        </portlet>\n");
89          }
90          ras.writeBytes("    </application>\n");
91          ras.writeBytes("</portlet-entity-registry>\n");
92          ras.close();
93      }
94  }
95