Clarify SLC project structure.

[gpl/argeo-slc.git] / cms / org.argeo.slc.client.ui.dist / src / org / argeo / slc / client / ui / dist / controllers / ArtifactsTreeContentProvider.java

diff --git a/cms/org.argeo.slc.client.ui.dist/src/org/argeo/slc/client/ui/dist/controllers/ArtifactsTreeContentProvider.java b/cms/org.argeo.slc.client.ui.dist/src/org/argeo/slc/client/ui/dist/controllers/ArtifactsTreeContentProvider.java
new file mode 100644 (file)
index 0000000..5559b44
--- /dev/null
+++ b/cms/org.argeo.slc.client.ui.dist/src/org/argeo/slc/client/ui/dist/controllers/ArtifactsTreeContentProvider.java
@@ -0,0 +1,91 @@
+package org.argeo.slc.client.ui.dist.controllers;
+
+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.jcr.util.JcrItemsComparator;
+import org.argeo.slc.SlcException;
+import org.argeo.slc.SlcTypes;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+
+/** Enable specific browsing of an artifact tree */
+public class ArtifactsTreeContentProvider implements ITreeContentProvider,
+               SlcTypes {
+       private static final long serialVersionUID = -8097817288192073987L;
+
+       // Utils
+       private boolean sortChildren = true;
+       private JcrItemsComparator itemComparator = new JcrItemsComparator();
+
+       public Object[] getElements(Object parent) {
+               return getChildren(parent);
+       }
+
+       public Object getParent(Object child) {
+               return null;
+       }
+
+       public Object[] getChildren(Object parent) {
+               Object[] elements = null;
+               try {
+                       if (parent instanceof Node) {
+                               Node node = (Node) parent;
+                               NodeIterator ni = node.getNodes();
+                               List<Node> nodesList = new ArrayList<Node>();
+                               while (ni.hasNext()) {
+                                       nodesList.add(ni.nextNode());
+                               }
+                               if (sortChildren) {
+                                       Node[] arr = (Node[]) nodesList.toArray(new Node[nodesList
+                                                       .size()]);
+                                       Arrays.sort(arr, itemComparator);
+                                       return arr;
+                               } else
+                                       return nodesList.toArray();
+
+                       }
+               } catch (RepositoryException e) {
+                       throw new SlcException(
+                                       "Unexpected exception while listing node properties", e);
+               }
+               return elements;
+       }
+
+       public boolean hasChildren(Object parent) {
+               try {
+                       if (parent instanceof Node) {
+                               Node curNode = (Node) parent;
+                               // We manually stop digging at this level
+                               if (curNode.isNodeType(SLC_ARTIFACT_VERSION_BASE))
+                                       return false;
+                               else if (curNode.hasNodes())
+                                       return true;
+                       }
+               } catch (RepositoryException e) {
+                       throw new SlcException(
+                                       "Unexpected exception while checking if property is multiple",
+                                       e);
+               }
+               return false;
+       }
+
+       public void setSortChildren(boolean sortChildren) {
+               this.sortChildren = sortChildren;
+       }
+
+       public boolean getSortChildren() {
+               return sortChildren;
+       }
+
+       public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+       }
+
+       public void dispose() {
+       }
+}
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