--- /dev/null
+/*
+ * 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.jcr.ui.explorer.browser;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Comparator;
+import java.util.List;
+
+import javax.jcr.Node;
+import javax.jcr.RepositoryException;
+import javax.jcr.RepositoryFactory;
+import javax.jcr.Session;
+import javax.jcr.nodetype.NodeType;
+
+import org.argeo.eclipse.ui.TreeParent;
+import org.argeo.jcr.ArgeoJcrConstants;
+import org.argeo.jcr.RepositoryRegister;
+import org.argeo.jcr.UserJcrUtils;
+import org.argeo.jcr.ui.explorer.model.RepositoriesElem;
+import org.argeo.jcr.ui.explorer.model.SingleJcrNodeElem;
+import org.argeo.util.security.Keyring;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.Viewer;
+
+/**
+ * Implementation of the {@code ITreeContentProvider} to display multiple
+ * repository environment in a tree like structure
+ *
+ */
+public class NodeContentProvider implements ITreeContentProvider {
+ final private RepositoryRegister repositoryRegister;
+ final private RepositoryFactory repositoryFactory;
+ /**
+ * A session of the logged in user on the default workspace of the node
+ * repository.
+ */
+ final private Session userSession;
+ final private Keyring keyring;
+ private boolean sortChildren;
+
+ // reference for cleaning
+ private SingleJcrNodeElem homeNode = null;
+ private RepositoriesElem repositoriesNode = null;
+
+ // Utils
+ private TreeBrowserComparator itemComparator = new TreeBrowserComparator();
+
+ public NodeContentProvider(Session userSession, Keyring keyring,
+ RepositoryRegister repositoryRegister,
+ RepositoryFactory repositoryFactory, Boolean sortChildren) {
+ this.userSession = userSession;
+ this.keyring = keyring;
+ this.repositoryRegister = repositoryRegister;
+ this.repositoryFactory = repositoryFactory;
+ this.sortChildren = sortChildren;
+ }
+
+ public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
+ if (newInput == null)// dispose
+ return;
+
+ if (userSession != null) {
+ Node userHome = UserJcrUtils.getUserHome(userSession);
+ if (userHome != null) {
+ // TODO : find a way to dynamically get alias for the node
+ if (homeNode != null)
+ homeNode.dispose();
+ homeNode = new SingleJcrNodeElem(null, userHome,
+ userSession.getUserID(), ArgeoJcrConstants.ALIAS_NODE);
+ }
+ }
+ if (repositoryRegister != null) {
+ if (repositoriesNode != null)
+ repositoriesNode.dispose();
+ repositoriesNode = new RepositoriesElem("Repositories",
+ repositoryRegister, repositoryFactory, null, userSession,
+ keyring);
+ }
+ }
+
+ /**
+ * Sends back the first level of the Tree. Independent from inputElement
+ * that can be null
+ */
+ public Object[] getElements(Object inputElement) {
+ List<Object> objs = new ArrayList<Object>();
+ if (homeNode != null)
+ objs.add(homeNode);
+ if (repositoriesNode != null)
+ objs.add(repositoriesNode);
+ return objs.toArray();
+ }
+
+ public Object[] getChildren(Object parentElement) {
+ if (parentElement instanceof TreeParent) {
+ if (sortChildren) {
+ // TreeParent[] arr = (TreeParent[]) ((TreeParent)
+ // parentElement)
+ // .getChildren();
+ Object[] tmpArr = ((TreeParent) parentElement).getChildren();
+ TreeParent[] arr = new TreeParent[tmpArr.length];
+ for (int i = 0; i < tmpArr.length; i++)
+ arr[i] = (TreeParent) tmpArr[i];
+
+ Arrays.sort(arr, itemComparator);
+ return arr;
+ } else
+ return ((TreeParent) parentElement).getChildren();
+
+ } else {
+ return new Object[0];
+ }
+ }
+
+ /**
+ * Sets whether the content provider should order the children nodes or not.
+ * It is user duty to call a full refresh of the tree after changing this
+ * parameter.
+ */
+ public void setSortChildren(boolean sortChildren) {
+ this.sortChildren = sortChildren;
+ }
+
+ public Object getParent(Object element) {
+ if (element instanceof TreeParent) {
+ return ((TreeParent) element).getParent();
+ } else
+ return null;
+ }
+
+ public boolean hasChildren(Object element) {
+ if (element instanceof RepositoriesElem) {
+ RepositoryRegister rr = ((RepositoriesElem) element)
+ .getRepositoryRegister();
+ return rr.getRepositories().size() > 0;
+ } else if (element instanceof TreeParent) {
+ TreeParent tp = (TreeParent) element;
+ return tp.hasChildren();
+ }
+ return false;
+ }
+
+ public void dispose() {
+ if (homeNode != null)
+ homeNode.dispose();
+ if (repositoriesNode != null) {
+ // logs out open sessions
+ // see https://bugzilla.argeo.org/show_bug.cgi?id=23
+ repositoriesNode.dispose();
+ }
+ }
+
+ /**
+ * Specific comparator for this view. See spec in BUG :
+ * https://www.argeo.org/bugzilla/show_bug.cgi?id=139
+ */
+ private class TreeBrowserComparator implements Comparator<TreeParent> {
+
+ public int category(TreeParent element) {
+ if (element instanceof SingleJcrNodeElem) {
+ Node node = ((SingleJcrNodeElem) element).getNode();
+ try {
+ if (node.isNodeType(NodeType.NT_FOLDER))
+ return 5;
+ } catch (RepositoryException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ }
+ return 10;
+ }
+
+ public int compare(TreeParent o1, TreeParent o2) {
+ int cat1 = category(o1);
+ int cat2 = category(o2);
+
+ if (cat1 != cat2) {
+ return cat1 - cat2;
+ }
+ return o1.getName().compareTo(o2.getName());
+ }
+ }
+}
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projects / lgpl / argeo-commons.git / blobdiff