server/plugins/org.argeo.jcr.ui.explorer/src/main/java/org/argeo/jcr/ui/explorer/editors/GenericNodeEditorInput.java

   1 /*
   2  * Copyright (C) 2007-2012 Mathieu Baudier
   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.argeo.jcr.ui.explorer.editors;
  17
  18 import javax.jcr.Node;
  19 import javax.jcr.RepositoryException;
  20
  21 import org.argeo.ArgeoException;
  22 import org.eclipse.jface.resource.ImageDescriptor;
  23 import org.eclipse.ui.IEditorInput;
  24 import org.eclipse.ui.IPersistableElement;
  25
  26 /**
  27  * An editor input based the JCR node object.
  28  * */
  29
  30 public class GenericNodeEditorInput implements IEditorInput {
  31         private final Node currentNode;
  32
  33         // cache key properties at creation time to avoid Exception at recoring time
  34         // when the session has been closed
  35         private String path;
  36         private String uid;
  37         private String name;
  38
  39         public GenericNodeEditorInput(Node currentNode) {
  40                 this.currentNode = currentNode;
  41                 try {
  42                         name = currentNode.getName();
  43                         uid = currentNode.getIdentifier();
  44                         path = currentNode.getPath();
  45                 } catch (RepositoryException re) {
  46                         throw new ArgeoException(
  47                                         "unexpected error while getting node key values at creation time",
  48                                         re);
  49                 }
  50         }
  51
  52         public Node getCurrentNode() {
  53                 return currentNode;
  54         }
  55
  56         public Object getAdapter(@SuppressWarnings("rawtypes") Class adapter) {
  57                 return null;
  58         }
  59
  60         public boolean exists() {
  61                 return true;
  62         }
  63
  64         public ImageDescriptor getImageDescriptor() {
  65                 return null;
  66         }
  67
  68         public String getName() {
  69                 return name;
  70         }
  71
  72         public String getUid() {
  73                 return uid;
  74         }
  75
  76         public String getToolTipText() {
  77                 return path;
  78         }
  79
  80         public String getPath() {
  81                 return path;
  82         }
  83
  84         public IPersistableElement getPersistable() {
  85                 return null;
  86         }
  87
  88         /**
  89          * equals method based on UID that is unique within a workspace and path of
  90          * the node, thus 2 shared node that have same UID as defined in the spec
  91          * but 2 different pathes will open two distinct editors.
  92          *
  93          * TODO enhance this method to support multirepository and multiworkspace
  94          * environments
  95          */
  96         public boolean equals(Object obj) {
  97                 if (this == obj)
  98                         return true;
  99                 if (obj == null)
 100                         return false;
 101                 if (getClass() != obj.getClass())
 102                         return false;
 103
 104                 GenericNodeEditorInput other = (GenericNodeEditorInput) obj;
 105                 if (!getUid().equals(other.getUid()))
 106                         return false;
 107                 if (!getPath().equals(other.getPath()))
 108                         return false;
 109                 return true;
 110         }
 111 }