Merge tag 'v2.3.20' into testing

[gpl/argeo-jcr.git] / swt / org.argeo.tool.devops.e4 / src / org / argeo / cms / ui / jcr / JcrTreeContentProvider.java

diff --git a/swt/org.argeo.tool.devops.e4/src/org/argeo/cms/ui/jcr/JcrTreeContentProvider.java b/swt/org.argeo.tool.devops.e4/src/org/argeo/cms/ui/jcr/JcrTreeContentProvider.java
new file mode 100644 (file)
index 0000000..cc8479f
--- /dev/null
+++ b/swt/org.argeo.tool.devops.e4/src/org/argeo/cms/ui/jcr/JcrTreeContentProvider.java
@@ -0,0 +1,82 @@
+package org.argeo.cms.ui.jcr;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import javax.jcr.Node;
+import javax.jcr.NodeIterator;
+import javax.jcr.RepositoryException;
+
+import org.argeo.eclipse.ui.EclipseUiException;
+import org.argeo.eclipse.ui.jcr.util.JcrItemsComparator;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+
+/**
+ * Implementation of the {@code ITreeContentProvider} in order to display a
+ * single JCR node and its children in a tree like structure
+ */
+public class JcrTreeContentProvider implements ITreeContentProvider {
+       private static final long serialVersionUID = -2128326504754297297L;
+       // private Node rootNode;
+       private JcrItemsComparator itemComparator = new JcrItemsComparator();
+
+       /**
+        * Sends back the first level of the Tree. input element must be a single node
+        * object
+        */
+       public Object[] getElements(Object inputElement) {
+               Node rootNode = (Node) inputElement;
+               return childrenNodes(rootNode);
+       }
+
+       public Object[] getChildren(Object parentElement) {
+               return childrenNodes((Node) parentElement);
+       }
+
+       public Object getParent(Object element) {
+               try {
+                       Node node = (Node) element;
+                       if (!node.getPath().equals("/"))
+                               return node.getParent();
+                       else
+                               return null;
+               } catch (RepositoryException e) {
+                       return null;
+               }
+       }
+
+       public boolean hasChildren(Object element) {
+               try {
+                       return ((Node) element).hasNodes();
+               } catch (RepositoryException e) {
+                       throw new EclipseUiException("Cannot check children existence on " + element, e);
+               }
+       }
+
+       protected Object[] childrenNodes(Node parentNode) {
+               try {
+                       List<Node> children = new ArrayList<Node>();
+                       NodeIterator nit = parentNode.getNodes();
+                       while (nit.hasNext()) {
+                               Node node = nit.nextNode();
+//                             if (node.getName().startsWith("rep:") || node.getName().startsWith("jcr:")
+//                                             || node.getName().startsWith("nt:"))
+//                                     continue nodes;
+                               children.add(node);
+                       }
+                       Node[] arr = children.toArray(new Node[0]);
+                       Arrays.sort(arr, itemComparator);
+                       return arr;
+               } catch (RepositoryException e) {
+                       throw new EclipseUiException("Cannot list children of " + parentNode, e);
+               }
+       }
+
+       public void dispose() {
+       }
+
+       public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+       }
+}