ImportPackageObject


1   /*******************************************************************************
2    * Copyright (c) 2005, 2007 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.pde.internal.core.text.bundle;
12  
13  import java.io.PrintWriter  ;
14  
15  import org.eclipse.osgi.service.resolver.ExportPackageDescription;
16  import org.eclipse.osgi.util.ManifestElement;
17  import org.eclipse.pde.internal.core.ICoreConstants;
18  import org.eclipse.pde.internal.core.bundle.BundlePluginBase;
19  import org.eclipse.pde.internal.core.ibundle.IBundleModel;
20  import org.osgi.framework.Constants;
21  import org.osgi.framework.Version;
22  
23  public class ImportPackageObject extends PackageObject {
24      
25      private static final long serialVersionUID = 1L;
26         
27      private static String   getVersion(ExportPackageDescription desc) {
28          String   version = desc.getVersion().toString();
29          if (!version.equals(Version.emptyVersion.toString()))
30              return desc.getVersion().toString();
31          return null;
32      }
33      
34      public ImportPackageObject(ManifestHeader header, ManifestElement element, String   versionAttribute) {
35          super(header, element, versionAttribute);
36      }
37      
38      public ImportPackageObject(ManifestHeader header, ExportPackageDescription desc, String   versionAttribute) {       
39          super(header, desc.getName(), getVersion(desc), versionAttribute);
40      }
41      
42      public ImportPackageObject(ManifestHeader header, String   id, String   version, String   versionAttribute) {
43          super(header, id, version, versionAttribute);
44      }
45     
46      public boolean isOptional() {
47          int manifestVersion = BundlePluginBase.getBundleManifestVersion(getHeader().getBundle());
48          if (manifestVersion > 1)
49              return Constants.RESOLUTION_OPTIONAL.equals(getDirective(Constants.RESOLUTION_DIRECTIVE));
50          return "true".equals(getAttribute(ICoreConstants.OPTIONAL_ATTRIBUTE)); //$NON-NLS-1$
51      }
52  
53      public void setOptional(boolean optional) {
54          boolean old = isOptional();
55          int manifestVersion = BundlePluginBase.getBundleManifestVersion(getHeader().getBundle());
56          if (optional) {
57              if (manifestVersion > 1)
58                  setDirective(Constants.RESOLUTION_DIRECTIVE, Constants.RESOLUTION_OPTIONAL);
59              else
60                  setAttribute(ICoreConstants.OPTIONAL_ATTRIBUTE, "true"); //$NON-NLS-1$
61          } else {
62              setDirective(Constants.RESOLUTION_DIRECTIVE, null);
63              setAttribute(ICoreConstants.OPTIONAL_ATTRIBUTE, null);
64          }
65          fHeader.update();
66          firePropertyChanged(this, Constants.RESOLUTION_DIRECTIVE, Boolean.toString(old), Boolean.toString(optional));
67      }
68  
69      /**
70       * @param model
71       * @param header
72       * @param versionAttribute
73       */
74      public void reconnect(IBundleModel model, ImportPackageHeader header, 
75              String   versionAttribute) {
76          super.reconnect(model, header, versionAttribute);
77          // No transient fields
78      }    
79      
80      /* (non-Javadoc)
81       * @see org.eclipse.pde.internal.core.bundle.BundleObject#write(java.lang.String, java.io.PrintWriter)
82       */
83      public void write(String   indent, PrintWriter   writer) {
84          // Used for text transfers for copy, cut, paste operations
85          writer.write(write());      
86      }
87      
88  }
89
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