--- /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.views;
+
+import java.util.List;
+
+import javax.jcr.Property;
+import javax.jcr.PropertyType;
+import javax.jcr.Repository;
+import javax.jcr.RepositoryException;
+import javax.jcr.RepositoryFactory;
+import javax.jcr.Session;
+import javax.jcr.Value;
+import javax.jcr.observation.Event;
+import javax.jcr.observation.EventListener;
+import javax.jcr.observation.ObservationManager;
+
+import org.argeo.ArgeoException;
+import org.argeo.eclipse.ui.TreeParent;
+import org.argeo.eclipse.ui.jcr.AsyncUiEventListener;
+import org.argeo.eclipse.ui.jcr.utils.NodeViewerComparer;
+import org.argeo.eclipse.ui.jcr.views.AbstractJcrBrowser;
+import org.argeo.jcr.RepositoryRegister;
+import org.argeo.jcr.ui.explorer.JcrExplorerPlugin;
+import org.argeo.jcr.ui.explorer.browser.NodeContentProvider;
+import org.argeo.jcr.ui.explorer.browser.NodeLabelProvider;
+import org.argeo.jcr.ui.explorer.browser.PropertiesContentProvider;
+import org.argeo.jcr.ui.explorer.model.SingleJcrNodeElem;
+import org.argeo.jcr.ui.explorer.utils.GenericNodeDoubleClickListener;
+import org.argeo.jcr.ui.explorer.utils.JcrUiUtils;
+import org.argeo.util.security.Keyring;
+import org.eclipse.jface.action.MenuManager;
+import org.eclipse.jface.viewers.ColumnLabelProvider;
+import org.eclipse.jface.viewers.ISelectionChangedListener;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.ITreeContentProvider;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+import org.eclipse.jface.viewers.StructuredSelection;
+import org.eclipse.jface.viewers.TableViewer;
+import org.eclipse.jface.viewers.TableViewerColumn;
+import org.eclipse.jface.viewers.TreeViewer;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.custom.SashForm;
+import org.eclipse.swt.layout.FillLayout;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Menu;
+
+/**
+ * Basic View to display a sash form to browse a JCR compliant multirepository
+ * environment
+ */
+public class GenericJcrBrowser extends AbstractJcrBrowser {
+ public final static String ID = JcrExplorerPlugin.ID + ".browserView";
+ private boolean sortChildNodes = true;
+
+ /* DEPENDENCY INJECTION */
+ private Keyring keyring;
+ private RepositoryRegister repositoryRegister;
+ private RepositoryFactory repositoryFactory;
+ private Repository nodeRepository;
+ /**
+ * A session of the logged in user on the default workspace of the node
+ * repository.
+ */
+ private Session userSession;
+
+ // This page widgets
+ private TreeViewer nodesViewer;
+ private NodeContentProvider nodeContentProvider;
+ private TableViewer propertiesViewer;
+ private EventListener resultsObserver;
+
+ @Override
+ public void createPartControl(Composite parent) {
+ parent.setLayout(new FillLayout());
+ SashForm sashForm = new SashForm(parent, SWT.VERTICAL);
+ sashForm.setSashWidth(4);
+ sashForm.setLayout(new FillLayout());
+
+ // Create the tree on top of the view
+ Composite top = new Composite(sashForm, SWT.NONE);
+ GridLayout gl = new GridLayout(1, false);
+ top.setLayout(gl);
+
+ try {
+ this.userSession = this.nodeRepository.login();
+ } catch (RepositoryException e) {
+ throw new ArgeoException("Cannot open user session", e);
+ }
+
+ nodeContentProvider = new NodeContentProvider(userSession, keyring,
+ repositoryRegister, repositoryFactory, sortChildNodes);
+
+ // nodes viewer
+ nodesViewer = createNodeViewer(top, nodeContentProvider);
+
+ // context menu : it is completely defined in the plugin.xml file.
+ MenuManager menuManager = new MenuManager();
+ Menu menu = menuManager.createContextMenu(nodesViewer.getTree());
+
+ nodesViewer.getTree().setMenu(menu);
+ getSite().registerContextMenu(menuManager, nodesViewer);
+ getSite().setSelectionProvider(nodesViewer);
+
+ nodesViewer.setInput(getViewSite());
+
+ // Create the property viewer on the bottom
+ Composite bottom = new Composite(sashForm, SWT.NONE);
+ bottom.setLayout(new GridLayout(1, false));
+ propertiesViewer = createPropertiesViewer(bottom);
+
+ sashForm.setWeights(getWeights());
+ nodesViewer.setComparer(new NodeViewerComparer());
+ }
+
+ @Override
+ public void refresh(Object obj) {
+ // Enable full refresh from a command when no element of the tree is
+ // selected
+ if (obj == null) {
+ Object[] elements = nodeContentProvider.getElements(null);
+ for (Object el : elements) {
+ if (el instanceof TreeParent)
+ JcrUiUtils.forceRefreshIfNeeded((TreeParent) el);
+ getNodeViewer().refresh(el);
+ }
+ }
+ super.refresh(obj);
+ }
+
+ /**
+ * To be overridden to adapt size of form and result frames.
+ */
+ protected int[] getWeights() {
+ return new int[] { 70, 30 };
+ }
+
+ protected TreeViewer createNodeViewer(Composite parent,
+ final ITreeContentProvider nodeContentProvider) {
+
+ final TreeViewer tmpNodeViewer = new TreeViewer(parent, SWT.MULTI);
+
+ tmpNodeViewer.getTree().setLayoutData(
+ new GridData(SWT.FILL, SWT.FILL, true, true));
+
+ tmpNodeViewer.setContentProvider(nodeContentProvider);
+ tmpNodeViewer.setLabelProvider(new NodeLabelProvider());
+ tmpNodeViewer
+ .addSelectionChangedListener(new ISelectionChangedListener() {
+ public void selectionChanged(SelectionChangedEvent event) {
+ if (!event.getSelection().isEmpty()) {
+ IStructuredSelection sel = (IStructuredSelection) event
+ .getSelection();
+ Object firstItem = sel.getFirstElement();
+ if (firstItem instanceof SingleJcrNodeElem)
+ propertiesViewer
+ .setInput(((SingleJcrNodeElem) firstItem)
+ .getNode());
+ } else {
+ propertiesViewer.setInput(getViewSite());
+ }
+ }
+ });
+
+ resultsObserver = new TreeObserver(tmpNodeViewer.getTree().getDisplay());
+ if (keyring != null)
+ try {
+ ObservationManager observationManager = userSession
+ .getWorkspace().getObservationManager();
+ observationManager.addEventListener(resultsObserver,
+ Event.PROPERTY_ADDED | Event.PROPERTY_CHANGED, "/",
+ true, null, null, false);
+ } catch (RepositoryException e) {
+ throw new ArgeoException("Cannot register listeners", e);
+ }
+
+ tmpNodeViewer
+ .addDoubleClickListener(new GenericNodeDoubleClickListener(
+ tmpNodeViewer));
+ return tmpNodeViewer;
+ }
+
+ protected TableViewer createPropertiesViewer(Composite parent) {
+ propertiesViewer = new TableViewer(parent);
+ propertiesViewer.getTable().setLayoutData(
+ new GridData(SWT.FILL, SWT.FILL, true, true));
+ propertiesViewer.getTable().setHeaderVisible(true);
+ propertiesViewer.setContentProvider(new PropertiesContentProvider());
+ TableViewerColumn col = new TableViewerColumn(propertiesViewer,
+ SWT.NONE);
+ col.getColumn().setText("Name");
+ col.getColumn().setWidth(200);
+ col.setLabelProvider(new ColumnLabelProvider() {
+ public String getText(Object element) {
+ try {
+ return ((Property) element).getName();
+ } catch (RepositoryException e) {
+ throw new ArgeoException(
+ "Unexpected exception in label provider", e);
+ }
+ }
+ });
+ col = new TableViewerColumn(propertiesViewer, SWT.NONE);
+ col.getColumn().setText("Value");
+ col.getColumn().setWidth(400);
+ col.setLabelProvider(new ColumnLabelProvider() {
+ public String getText(Object element) {
+ try {
+ Property property = (Property) element;
+ if (property.getType() == PropertyType.BINARY)
+ return "<binary>";
+ else if (property.isMultiple()) {
+ StringBuffer buf = new StringBuffer("[");
+ Value[] values = property.getValues();
+ for (int i = 0; i < values.length; i++) {
+ if (i != 0)
+ buf.append(", ");
+ buf.append(values[i].getString());
+ }
+ buf.append(']');
+ return buf.toString();
+ } else
+ return property.getValue().getString();
+ } catch (RepositoryException e) {
+ throw new ArgeoException(
+ "Unexpected exception in label provider", e);
+ }
+ }
+ });
+ col = new TableViewerColumn(propertiesViewer, SWT.NONE);
+ col.getColumn().setText("Type");
+ col.getColumn().setWidth(200);
+ col.setLabelProvider(new ColumnLabelProvider() {
+ public String getText(Object element) {
+ try {
+ return PropertyType.nameFromValue(((Property) element)
+ .getType());
+ } catch (RepositoryException e) {
+ throw new ArgeoException(
+ "Unexpected exception in label provider", e);
+ }
+ }
+ });
+ propertiesViewer.setInput(getViewSite());
+ return propertiesViewer;
+ }
+
+ @Override
+ public void dispose() {
+ super.dispose();
+ }
+
+ @Override
+ protected TreeViewer getNodeViewer() {
+ return nodesViewer;
+ }
+
+ /**
+ * Resets the tree content provider
+ *
+ * @param sortChildNodes
+ * if true the content provider will use a comparer to sort nodes
+ * that might slow down the display
+ * */
+ public void setSortChildNodes(boolean sortChildNodes) {
+ this.sortChildNodes = sortChildNodes;
+ ((NodeContentProvider) nodesViewer.getContentProvider())
+ .setSortChildren(sortChildNodes);
+ nodesViewer.setInput(getViewSite());
+ }
+
+ /** Notifies the current view that a node has been added */
+ public void nodeAdded(TreeParent parentNode) {
+ // insure that Ui objects have been correctly created:
+ JcrUiUtils.forceRefreshIfNeeded(parentNode);
+ getNodeViewer().refresh(parentNode);
+ getNodeViewer().expandToLevel(parentNode, 1);
+ }
+
+ /** Notifies the current view that a node has been removed */
+ public void nodeRemoved(TreeParent parentNode) {
+ IStructuredSelection newSel = new StructuredSelection(parentNode);
+ getNodeViewer().setSelection(newSel, true);
+ // Force refresh
+ IStructuredSelection tmpSel = (IStructuredSelection) getNodeViewer()
+ .getSelection();
+ getNodeViewer().refresh(tmpSel.getFirstElement());
+ }
+
+ class TreeObserver extends AsyncUiEventListener {
+
+ public TreeObserver(Display display) {
+ super(display);
+ }
+
+ @Override
+ protected Boolean willProcessInUiThread(List<Event> events)
+ throws RepositoryException {
+ for (Event event : events) {
+ if (getLog().isTraceEnabled())
+ getLog().debug("Received event " + event);
+ String path = event.getPath();
+ int index = path.lastIndexOf('/');
+ String propertyName = path.substring(index + 1);
+ if (getLog().isTraceEnabled())
+ getLog().debug("Concerned property " + propertyName);
+ }
+ return false;
+ }
+
+ protected void onEventInUiThread(List<Event> events)
+ throws RepositoryException {
+ if (getLog().isTraceEnabled())
+ getLog().trace("Refresh result list");
+ nodesViewer.refresh();
+ }
+
+ }
+
+ public boolean getSortChildNodes() {
+ return sortChildNodes;
+ }
+
+ /* DEPENDENCY INJECTION */
+ public void setRepositoryRegister(RepositoryRegister repositoryRegister) {
+ this.repositoryRegister = repositoryRegister;
+ }
+
+ public void setKeyring(Keyring keyring) {
+ this.keyring = keyring;
+ }
+
+ public void setRepositoryFactory(RepositoryFactory repositoryFactory) {
+ this.repositoryFactory = repositoryFactory;
+ }
+
+ public void setNodeRepository(Repository nodeRepository) {
+ this.nodeRepository = nodeRepository;
+ }
+
+}