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// $Id$
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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.navigation.navigator;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Observable;
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import java.util.Observer;
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import java.util.Set;
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import java.util.UUID;
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import org.eclipse.core.runtime.IAdaptable;
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import org.eclipse.core.runtime.IProgressMonitor;
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import org.eclipse.jface.viewers.DoubleClickEvent;
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import org.eclipse.jface.viewers.TreePath;
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import org.eclipse.ui.IMemento;
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import org.eclipse.ui.IViewSite;
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import org.eclipse.ui.PartInitException;
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import org.eclipse.ui.navigator.CommonNavigator;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
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import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
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import eu.etaxonomy.cdm.api.service.IClassificationService;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
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import eu.etaxonomy.taxeditor.model.DataChangeBridge;
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import eu.etaxonomy.taxeditor.model.IDataChangeBehavior;
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import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
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import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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import eu.etaxonomy.taxeditor.store.LoginManager;
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/**
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* Taxonomic tree implementation using Common Navigator Framework.
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*
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* @author p.ciardelli
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* @author n.hoffmann
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* @created 02.06.2009
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* @version 1.0
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*/
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public class TaxonNavigator extends CommonNavigator implements
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IPostOperationEnabled, IConversationEnabled, Observer {
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/**
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* Constant
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* <code>ID="eu.etaxonomy.taxeditor.navigation.navig"{trunked}</code>
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*/
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public static final String ID = "eu.etaxonomy.taxeditor.navigation.navigator"; //$NON-NLS-1$
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private static final String TREE_PATH = "treepath";
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private static final String TREE_PATHS = "treepaths";
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private ConversationHolder conversation;
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private String partNameCache;
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private IDataChangeBehavior dataChangeBehavior;
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/*
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* (non-Javadoc)
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*
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* @see org.eclipse.ui.navigator.CommonNavigator#getInitialInput()
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*/
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/** {@inheritDoc} */
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@Override
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protected IAdaptable getInitialInput() {
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if (CdmStore.isActive()) {
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// TODO when closing and reopening the taxon navigator
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// we do not preserve state. Closing the view, in contrary to
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// closing the whole application
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// should be handled by the state manager too
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return new Root(conversation);
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}
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return new EmptyRoot();
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}
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/** {@inheritDoc} */
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@Override
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public void init(IViewSite site) throws PartInitException {
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super.init(site);
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init();
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}
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/**
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* <p>
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* init
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* </p>
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*/
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public void init() {
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if (CdmStore.isActive() && conversation == null) {
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conversation = CdmStore.createConversation();
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conversation.registerForDataStoreChanges(TaxonNavigator.this);
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}
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CdmStore.getLoginManager().addObserver(this);
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}
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/**
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* Refresh this navigators viewer
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*/
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public void refresh() {
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if(getConversationHolder() != null){
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getConversationHolder().bind();
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getConversationHolder().commit();
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}
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getCommonViewer().refresh();
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}
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/**
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* Removes all content
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*/
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public void clear() {
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getCommonViewer().setInput(new EmptyRoot());
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}
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/**
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* <p>
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* restore
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* </p>
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*
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* @param memento
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* a {@link org.eclipse.ui.IMemento} object.
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* @param monitor
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* a {@link org.eclipse.core.runtime.IProgressMonitor} object.
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*/
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public void restore(IMemento memento, IProgressMonitor monitor) {
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if (memento == null) {
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getCommonViewer().setInput(new Root(conversation));
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return;
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}
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int mementoWork = 0;
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Set<TreePath> treePaths = new HashSet<TreePath>();
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IMemento[] treePathMementos = null;
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IMemento treePathsMemento = memento.getChild(TREE_PATHS);
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if (treePathsMemento != null) {
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treePathMementos = treePathsMemento.getChildren(TREE_PATH);
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mementoWork = treePathMementos.length;
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}
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// begin the monitor with steps for all tree paths and steps for
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// creating
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// conversation s.o., refreshing the tree and setting the paths
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IProgressMonitor subProgressMonitor = NavigationUtil
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.getSubProgressMonitor(monitor, 1);
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subProgressMonitor.beginTask("Restoring Taxon Navigator",
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1 + mementoWork + 5);
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subProgressMonitor.subTask("Restoring Taxon Navigator");
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subProgressMonitor.worked(1);
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conversation = CdmStore.createConversation();
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subProgressMonitor.worked(1);
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conversation.registerForDataStoreChanges(TaxonNavigator.this);
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subProgressMonitor.worked(1);
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getCommonViewer().setInput(new Root(conversation));
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subProgressMonitor.worked(1);
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getCommonViewer().refresh();
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subProgressMonitor.worked(1);
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if (treePathMementos != null && treePathMementos.length > 0) {
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for (IMemento treePathMemento : treePathMementos) {
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TreePath treePath = createTreePathFromString(treePathMemento
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.getID());
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if (!subProgressMonitor.isCanceled() && treePath != null) {
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treePaths.add(treePath);
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subProgressMonitor.worked(1);
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}
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}
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}
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if (treePaths.size() > 0) {
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TaxonNavigator.this.getCommonViewer().setExpandedTreePaths(
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treePaths.toArray(new TreePath[0]));
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subProgressMonitor.worked(1);
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}
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subProgressMonitor.done();
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}
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/**
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* @param string
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* @return
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*/
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private TreePath createTreePathFromString(String string) {
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List<CdmBase> pathList = new ArrayList<CdmBase>();
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if (string.length() == 0) {
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return null;
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}
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for (String uuid : string.split(" ")) {
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CdmBase cdmBaseObject = CdmStore.getService(
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IClassificationService.class).getTaxonNodeByUuid(
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UUID.fromString(uuid));
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if (cdmBaseObject == null) {
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// is this a tree uuid?
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cdmBaseObject = CdmStore.getService(
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IClassificationService.class).load(
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UUID.fromString(uuid));
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if (cdmBaseObject == null) {
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return null;
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}
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}
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pathList.add(cdmBaseObject);
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}
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return new TreePath(pathList.toArray());
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}
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/** {@inheritDoc} */
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@Override
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public void saveState(IMemento aMemento) {
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//
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}
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/**
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* <p>
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* saveTreeState
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* </p>
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*
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* @param memento
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* a {@link org.eclipse.ui.IMemento} object.
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* @param progressMonitor
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* a {@link org.eclipse.core.runtime.IProgressMonitor} object.
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*/
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public void saveTreeState(IMemento memento, IProgressMonitor progressMonitor) {
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if (memento == null) {
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return;
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}
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IProgressMonitor monitor = NavigationUtil.getSubProgressMonitor(
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progressMonitor, 1);
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super.saveState(memento);
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memento = memento.createChild(TREE_PATHS);
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TreePath[] treePaths = this.getCommonViewer().getExpandedTreePaths();
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monitor.beginTask("Saving Taxon Navigator State", treePaths.length);
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for (TreePath treePath : treePaths) {
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int pathLength = treePath.getSegmentCount();
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String path = "";
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for (int i = 0; i < pathLength; i++) {
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Object segment = treePath.getSegment(i);
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if (segment instanceof CdmBase) {
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path += ((CdmBase) segment).getUuid().toString() + " ";
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monitor.worked(1);
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} else {
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NavigationUtil.warn(getClass(),
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"Non-taxon tree path segment " + segment);
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}
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}
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memento.createChild(TREE_PATH, path.trim());
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}
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monitor.done();
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}
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/*
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* (non-Javadoc)
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*
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* @see
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* eu.etaxonomy.cdm.api.conversation.IConversationEnabled#getConversationHolder
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* ()
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*/
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/**
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* <p>
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* getConversationHolder
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* </p>
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*
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* @return a {@link eu.etaxonomy.cdm.api.conversation.ConversationHolder}
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* object.
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*/
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@Override
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public ConversationHolder getConversationHolder() {
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return conversation;
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}
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/*
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* (non-Javadoc)
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*
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* @see
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* eu.etaxonomy.cdm.persistence.hibernate.ICdmPostDataChangeObserver#update
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* (eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap)
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*/
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/** {@inheritDoc} */
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@Override
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public void update(CdmDataChangeMap changeEvents) {
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if (dataChangeBehavior == null) {
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dataChangeBehavior = new TaxonNavigatorDataChangeBehavior(this);
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}
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DataChangeBridge.handleDataChange(changeEvents, dataChangeBehavior);
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}
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/** {@inheritDoc} */
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@Override
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public String getFrameToolTipText(Object element) {
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if (element instanceof Root) {
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return "Taxonomic Tree";
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}
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return super.getFrameToolTipText(element);
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}
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/*
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* (non-Javadoc)
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*
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* @see org.eclipse.ui.part.WorkbenchPart#dispose()
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*/
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/** {@inheritDoc} */
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@Override
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public void dispose() {
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super.dispose();
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dataChangeBehavior = null;
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if (conversation != null) {
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conversation.unregisterForDataStoreChanges(this);
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}
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}
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/*
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* (non-Javadoc)
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*
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* @see org.eclipse.ui.navigator.CommonNavigator#setFocus()
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*/
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/** {@inheritDoc} */
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@Override
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public void setFocus() {
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// logger.warn("Setting focus to navigator");
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super.setFocus();
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if (getConversationHolder() != null) {
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getConversationHolder().bind();
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}
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}
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/*
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* (non-Javadoc)
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*
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* @see
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* eu.etaxonomy.taxeditor.operations.IPostOperationEnabled#postOperation
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* (eu.etaxonomy.cdm.model.common.CdmBase)
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*/
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/** {@inheritDoc} */
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@Override
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public boolean postOperation(CdmBase objectAffectedByOperation) {
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// nothing to do here
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return true;
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}
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/**
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* <p>
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* save
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* </p>
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*
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* @param memento
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* a {@link org.eclipse.ui.IMemento} object.
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* @param monitor
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* a {@link org.eclipse.core.runtime.IProgressMonitor} object.
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*/
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public void save(IMemento memento, IProgressMonitor monitor) {
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saveTreeState(memento, monitor);
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if (conversation != null) {
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conversation.unregisterForDataStoreChanges(this);
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conversation = null;
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}
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}
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/** {@inheritDoc} */
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@Override
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protected void handleDoubleClick(DoubleClickEvent anEvent) {
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NavigationUtil.executeEditHandler();
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// If the double click is passed up to the super-class it will
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// expand/collapse trees.
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// We do not want that
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// super.handleDoubleClick(anEvent);
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}
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/**
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* <p>
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* onComplete
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* </p>
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*
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* @return a boolean.
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*/
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@Override
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public boolean onComplete() {
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return true;
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}
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/*
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* (non-Javadoc)
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*
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401
|
* @see org.eclipse.ui.part.WorkbenchPart#showBusy(boolean)
|
|
402
|
*/
|
|
403
|
/** {@inheritDoc} */
|
|
404
|
@Override
|
|
405
|
public void showBusy(boolean busy) {
|
|
406
|
super.showBusy(busy);
|
|
407
|
getCommonViewer().getControl().setEnabled(!busy);
|
|
408
|
if (busy) {
|
|
409
|
partNameCache = getPartName();
|
|
410
|
setPartName("Loading datasources");
|
|
411
|
} else {
|
|
412
|
if (partNameCache != null) {
|
|
413
|
setPartName(partNameCache);
|
|
414
|
}
|
|
415
|
}
|
|
416
|
}
|
|
417
|
|
|
418
|
|
|
419
|
/* (non-Javadoc)
|
|
420
|
* @see java.util.Observer#update(java.util.Observable, java.lang.Object)
|
|
421
|
*/
|
|
422
|
@Override
|
|
423
|
public void update(Observable o, Object arg) {
|
|
424
|
if(o instanceof LoginManager){
|
|
425
|
refresh();
|
|
426
|
}
|
|
427
|
|
|
428
|
}
|
|
429
|
}
|