Start migrating SLC client

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

diff --git a/org.argeo.slc.client.ui.dist/src/main/java/org/argeo/slc/client/ui/dist/controllers/ArtifactsTreeContentProvider.java b/org.argeo.slc.client.ui.dist/src/main/java/org/argeo/slc/client/ui/dist/controllers/ArtifactsTreeContentProvider.java
new file mode 100644 (file)
index 0000000..ef3fef2
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+++ b/org.argeo.slc.client.ui.dist/src/main/java/org/argeo/slc/client/ui/dist/controllers/ArtifactsTreeContentProvider.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+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.ArgeoException;
+import org.argeo.eclipse.ui.jcr.utils.JcrItemsComparator;
+import org.argeo.slc.jcr.SlcTypes;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+
+public class ArtifactsTreeContentProvider implements ITreeContentProvider,
+               SlcTypes {
+
+       // 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 ArgeoException(
+                                       "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 ArgeoException(
+                                       "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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