update/org.eclipse.update.ui/src/org/eclipse/update/internal/ui/views/ConfigurationView.java - platform/eclipse.platform - Git at Google

 package org.eclipse.update.internal.ui.views;
 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IAdaptable;
 import org.eclipse.jface.action.Action;
 import org.eclipse.jface.action.IMenuManager;
 import org.eclipse.jface.action.IToolBarManager;
 import org.eclipse.jface.action.Separator;
 import org.eclipse.jface.resource.ImageDescriptor;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.ITreeContentProvider;
 import org.eclipse.jface.viewers.LabelProvider;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.ui.IActionBars;
 import org.eclipse.ui.ISharedImages;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.dialogs.PropertyDialogAction;
 import org.eclipse.ui.part.DrillDownAdapter;
 import org.eclipse.update.configuration.IConfiguredSite;
 import org.eclipse.update.configuration.IConfiguredSiteChangedListener;
 import org.eclipse.update.configuration.IInstallConfiguration;
 import org.eclipse.update.configuration.IInstallConfigurationChangedListener;
 import org.eclipse.update.configuration.ILocalSite;
 import org.eclipse.update.configuration.ILocalSiteChangedListener;
 import org.eclipse.update.core.IFeature;
 import org.eclipse.update.core.IFeatureReference;
 import org.eclipse.update.core.ISite;
 import org.eclipse.update.core.SiteManager;
 import org.eclipse.update.internal.ui.UpdateUIPlugin;
 import org.eclipse.update.internal.ui.UpdateUIPluginImages;
 import org.eclipse.update.internal.ui.manager.RevertSection;
 import org.eclipse.update.internal.ui.model.ConfigurationSiteAdapter;
 import org.eclipse.update.internal.ui.model.ConfiguredFeatureAdapter;
 import org.eclipse.update.internal.ui.model.IConfiguredFeatureAdapter;
 import org.eclipse.update.internal.ui.model.IConfiguredSiteAdapter;
 import org.eclipse.update.internal.ui.model.IFeatureAdapter;
 import org.eclipse.update.internal.ui.model.IUpdateModelChangedListener;
 import org.eclipse.update.internal.ui.model.MissingFeature;
 import org.eclipse.update.internal.ui.model.PreservedConfiguration;
 import org.eclipse.update.internal.ui.model.UpdateModel;
 import org.eclipse.update.internal.ui.parts.DefaultContentProvider;
 import org.eclipse.update.internal.ui.parts.OverlayIcon;
 import org.eclipse.update.internal.ui.model.ModelObject;

 /**
  * Insert the type's description here.
  * @see ViewPart
  */
 public class ConfigurationView
 	extends BaseTreeView
 	implements
 		IInstallConfigurationChangedListener,
 		IConfiguredSiteChangedListener,
 		ILocalSiteChangedListener {
 	private static final String KEY_CURRENT = "ConfigurationView.current";
 	private static final String KEY_SHOW_UNCONF_FEATURES =
 		"ConfigurationView.showUnconfFeatures";
 	private static final String KEY_SHOW_UNCONF_FEATURES_TOOLTIP =
 		"ConfigurationView.showUnconfFeatures.tooltip";
 	private Image eclipseImage;
 	private Image featureImage;
 	private Image unconfFeatureImage;
 	private Image siteImage;
 	private Image installSiteImage;
 	private Image linkedSiteImage;
 	private Image configImage;
 	private Image currentConfigImage;
 	private boolean initialized;
 	private SavedFolder savedFolder;
 	private HistoryFolder historyFolder;
 	private Action showUnconfFeaturesAction;
 	private Action revertAction;
 	private Action preserveAction;
 	private Action removePreservedAction;
 	private Action propertiesAction;
 	private IUpdateModelChangedListener modelListener;
 	private DrillDownAdapter drillDownAdapter;
 	private static final String KEY_RESTORE = "ConfigurationView.Popup.restore";
 	private static final String KEY_PRESERVE = "ConfigurationView.Popup.preserve";
 	private static final String KEY_REMOVE_PRESERVED =
 		"ConfigurationView.Popup.removePreserved";
 	private static final String KEY_HISTORY_FOLDER = "ConfigurationView.historyFolder";
 	private static final String KEY_SAVED_FOLDER = "ConfigurationView.savedFolder";

 	abstract class ViewFolder extends ModelObject {
 		private String label;
 		private Image image;

 		public ViewFolder(String label) {
 			this.label = label;
 			String imageKey = ISharedImages.IMG_OBJ_FOLDER;
 			image = PlatformUI.getWorkbench().getSharedImages().getImage(imageKey);
 		}

 		public Image getImage() {
 			return image;
 		}

 		public String toString() {
 			return label;
 		}
 		public abstract Object[] getChildren();
 	}

 	class SavedFolder extends ViewFolder {
 		public SavedFolder() {
 			super(UpdateUIPlugin.getResourceString(KEY_SAVED_FOLDER));
 		}
 		public Object[] getChildren() {
 			try {
 				ILocalSite localSite = SiteManager.getLocalSite();
 				return makeChildren(localSite.getPreservedConfigurations());
 			} catch (CoreException e) {
 				return new Object[0];
 			}
 		}

 		private Object[] makeChildren(IInstallConfiguration[] preserved) {
 			Object[] children = new Object[preserved.length];
 			for (int i = 0; i < preserved.length; i++) {
 				children[i] = new PreservedConfiguration(preserved[i]);
 			}
 			return children;
 		}
 	}

 	class HistoryFolder extends ViewFolder {
 		public HistoryFolder() {
 			super(UpdateUIPlugin.getResourceString(KEY_HISTORY_FOLDER));
 		}
 		public Object[] getChildren() {
 			try {
 				ILocalSite localSite = SiteManager.getLocalSite();
 				return localSite.getConfigurationHistory();
 			} catch (CoreException e) {
 				return new Object[0];
 			}
 		}
 	}

 	class UpdateModelChangedListener implements IUpdateModelChangedListener {
 		/**
 		 * @see IUpdateModelChangedListener#objectAdded(Object, Object)
 		 */
 		public void objectsAdded(Object parent, Object[] children) {
 		}

 		/**
 		 * @see IUpdateModelChangedListener#objectRemoved(Object, Object)
 		 */
 		public void objectsRemoved(Object parent, Object[] children) {
 		}

 		/**
 		 * @see IUpdateModelChangedListener#objectChanged(Object, String)
 		 */
 		public void objectChanged(Object object, String property) {
 		}

 	}

 	class LocalSiteProvider
 		extends DefaultContentProvider
 		implements ITreeContentProvider {
 		/**
 		 * @see ITreeContentProvider#getChildren(Object)
 		 */
 		public Object[] getChildren(Object parent) {
 			if (parent instanceof UpdateModel) {
 				UpdateModel model = (UpdateModel) parent;
 				ILocalSite localSite = getLocalSite();
 				if (localSite != null)
 					return new Object[] { getLocalSite(), historyFolder, savedFolder };
 				else
 					return new Object[0];
 			}
 			if (parent instanceof ILocalSite) {
 				return openLocalSite();
 			}
 			if (parent instanceof ViewFolder) {
 				return ((ViewFolder) parent).getChildren();
 			}
 			if (parent instanceof PreservedConfiguration) {
 				// resolve the adapter
 				parent = ((PreservedConfiguration) parent).getConfiguration();
 			}
 			if (parent instanceof IInstallConfiguration) {
 				return getConfigurationSites((IInstallConfiguration) parent);
 			}
 			if (parent instanceof IConfiguredSiteAdapter) {
 				IConfiguredSiteAdapter adapter = (IConfiguredSiteAdapter) parent;
 				boolean showUnconf = showUnconfFeaturesAction.isChecked();
 				if (showUnconf)
 					return getAllFeatures(adapter);
 				else
 					return getConfiguredFeatures(adapter);
 			}
 			return new Object[0];
 		}

 		private Object[] getConfigurationSites(IInstallConfiguration config) {
 			IConfiguredSite[] sites = config.getConfiguredSites();
 			Object[] adapters = new Object[sites.length];
 			for (int i = 0; i < sites.length; i++) {
 				adapters[i] = new ConfigurationSiteAdapter(config, sites[i]);
 			}
 			return adapters;
 		}

 		private Object[] getConfiguredFeatures(IConfiguredSiteAdapter adapter) {
 			try {
 				IConfiguredSite csite = adapter.getConfigurationSite();
 				IFeatureReference[] refs = csite.getConfiguredFeatures();
 				Object[] result = new Object[refs.length];
 				for (int i = 0; i < refs.length; i++) {
 					IFeature feature = refs[i].getFeature();
 					result[i] = new ConfiguredFeatureAdapter(adapter, feature, true);
 				}
 				return result;
 			} catch (CoreException e) {
 				UpdateUIPlugin.logException(e);
 				return new Object[0];
 			}
 		}

 		private Object[] getAllFeatures(IConfiguredSiteAdapter adapter) {
 			IConfiguredSite csite = adapter.getConfigurationSite();
 			IFeatureReference[] crefs = csite.getConfiguredFeatures();
 			ISite site = csite.getSite();
 			IFeatureReference[] allRefs = site.getFeatureReferences();
 			Object[] result = new Object[allRefs.length];

 			for (int i = 0; i < allRefs.length; i++) {
 				IFeature feature;
 				try {
 					feature = allRefs[i].getFeature();
 				} catch (CoreException e) {
 					feature = new MissingFeature(site, allRefs[i].getURL());
 				}
 				boolean configured = isOnTheList(allRefs[i], crefs);
 				result[i] = new ConfiguredFeatureAdapter(adapter, feature, configured);
 			}
 			return result;
 		}

 		private boolean isOnTheList(IFeatureReference ref, IFeatureReference[] refs) {
 			for (int i = 0; i < refs.length; i++) {
 				IFeatureReference confRef = refs[i];
 				if (confRef.getURL().equals(ref.getURL()))
 					return true;
 			}
 			return false;
 		}

 		/**
 		 * @see ITreeContentProvider#getParent(Object)
 		 */
 		public Object getParent(Object child) {
 			return null;
 		}

 		/**
 		 * @see ITreeContentProvider#hasChildren(Object)
 		 */
 		public boolean hasChildren(Object parent) {
 			return !(parent instanceof IFeatureAdapter);
 		}

 		/**
 		 * @see IStructuredContentProvider#getElements(Object)
 		 */
 		public Object[] getElements(Object input) {
 			return getChildren(input);
 		}
 	}

 	class LocalSiteLabelProvider extends LabelProvider {
 		public String getText(Object obj) {
 			if (obj instanceof ILocalSite) {
 				return UpdateUIPlugin.getResourceString(KEY_CURRENT);
 			}
 			if (obj instanceof IInstallConfiguration) {
 				IInstallConfiguration config = (IInstallConfiguration) obj;
 				return config.getLabel();
 			}
 			if (obj instanceof IConfiguredSiteAdapter) {
 				IConfiguredSite csite = ((IConfiguredSiteAdapter) obj).getConfigurationSite();
 				ISite site = csite.getSite();
 				return site.getURL().toString();
 			}
 			if (obj instanceof IFeatureAdapter) {
 				try {
 					IFeature feature = ((IFeatureAdapter) obj).getFeature();
 					String version = feature.getVersionedIdentifier().getVersion().toString();
 					return feature.getLabel() + " " + version;
 				} catch (CoreException e) {
 					return "Error";
 				}
 			}
 			return super.getText(obj);
 		}
 		public Image getImage(Object obj) {
 			if (obj instanceof ILocalSite)
 				return eclipseImage;
 			if (obj instanceof IFeatureAdapter) {
 				return getFeatureImage((IFeatureAdapter) obj);
 			}
 			if (obj instanceof IConfiguredSiteAdapter) {
 				IConfiguredSite csite = ((IConfiguredSiteAdapter) obj).getConfigurationSite();
 				if (csite.isUpdateable())
 					return installSiteImage;
 				else
 					return linkedSiteImage;
 			}
 			if (obj instanceof ViewFolder) {
 				return ((ViewFolder) obj).getImage();
 			}
 			if (obj instanceof PreservedConfiguration) {
 				obj = ((PreservedConfiguration) obj).getConfiguration();
 			}
 			if (obj instanceof IInstallConfiguration) {
 				IInstallConfiguration config = (IInstallConfiguration) obj;
 				if (config.isCurrent())
 					return currentConfigImage;
 				return configImage;
 			}
 			return null;
 		}

 		private Image getFeatureImage(IFeatureAdapter adapter) {
 			boolean configured = true;
 			if (adapter instanceof IConfiguredFeatureAdapter) {
 				configured = ((IConfiguredFeatureAdapter) adapter).isConfigured();
 			}
 			return (configured ? featureImage : unconfFeatureImage);
 		}
 	}

 	public ConfigurationView() {
 		eclipseImage = UpdateUIPluginImages.DESC_ECLIPSE_OBJ.createImage();
 		featureImage = UpdateUIPluginImages.DESC_FEATURE_OBJ.createImage();
 		unconfFeatureImage = UpdateUIPluginImages.DESC_UNCONF_FEATURE_OBJ.createImage();
 		ImageDescriptor siteDesc = UpdateUIPluginImages.DESC_SITE_OBJ;
 		siteImage = siteDesc.createImage();
 		ImageDescriptor installSiteDesc =
 			new OverlayIcon(
 				siteDesc,
 				new ImageDescriptor[][] { { UpdateUIPluginImages.DESC_INSTALLABLE_CO }
 		});
 		installSiteImage = installSiteDesc.createImage();
 		ImageDescriptor linkedSiteDesc =
 			new OverlayIcon(
 				siteDesc,
 				new ImageDescriptor[][] { { UpdateUIPluginImages.DESC_LINKED_CO }
 		});
 		linkedSiteImage = linkedSiteDesc.createImage();
 		configImage = UpdateUIPluginImages.DESC_CONFIG_OBJ.createImage();
 		ImageDescriptor cdesc =
 			new OverlayIcon(
 				UpdateUIPluginImages.DESC_CONFIG_OBJ,
 				new ImageDescriptor[][] { {
 			}, {
 				UpdateUIPluginImages.DESC_CURRENT_CO }
 		});
 		currentConfigImage = cdesc.createImage();
 		savedFolder = new SavedFolder();
 		historyFolder = new HistoryFolder();
 	}

 	public void initProviders() {
 		viewer.setContentProvider(new LocalSiteProvider());
 		viewer.setInput(UpdateUIPlugin.getDefault().getUpdateModel());
 		viewer.setLabelProvider(new LocalSiteLabelProvider());
 		try {
 			ILocalSite localSite = SiteManager.getLocalSite();
 			localSite.addLocalSiteChangedListener(this);
 		} catch (CoreException e) {
 			UpdateUIPlugin.logException(e);
 		}
 		UpdateModel model = UpdateUIPlugin.getDefault().getUpdateModel();
 		modelListener = new IUpdateModelChangedListener() {
 			public void objectsAdded(Object parent, Object[] children) {
 			}
 			public void objectsRemoved(Object parent, Object[] children) {
 			}
 			public void objectChanged(Object obj, String property) {
 				viewer.update(obj, null);
 			}
 		};
 		model.addUpdateModelChangedListener(modelListener);
 	}

 	private ILocalSite getLocalSite() {
 		try {
 			return SiteManager.getLocalSite();
 		} catch (CoreException e) {
 			UpdateUIPlugin.logException(e);
 			return null;
 		}
 	}

 	private Object[] openLocalSite() {
 		try {
 			ILocalSite localSite = SiteManager.getLocalSite();
 			IInstallConfiguration config = localSite.getCurrentConfiguration();
 			IConfiguredSite[] sites = config.getConfiguredSites();
 			Object[] result = new Object[sites.length];
 			for (int i = 0; i < sites.length; i++) {
 				result[i] = new ConfigurationSiteAdapter(config, sites[i]);
 			}
 			if (!initialized) {
 				config.addInstallConfigurationChangedListener(this);
 				initialized = true;
 			}
 			return result;
 		} catch (CoreException e) {
 			UpdateUIPlugin.logException(e);
 			return new Object[0];
 		}
 	}

 	public void dispose() {
 		eclipseImage.dispose();
 		featureImage.dispose();
 		unconfFeatureImage.dispose();
 		installSiteImage.dispose();
 		linkedSiteImage.dispose();
 		configImage.dispose();
 		currentConfigImage.dispose();

 		if (initialized) {
 			try {
 				ILocalSite localSite = SiteManager.getLocalSite();
 				localSite.removeLocalSiteChangedListener(this);
 				IInstallConfiguration config = localSite.getCurrentConfiguration();
 				config.removeInstallConfigurationChangedListener(this);
 			} catch (CoreException e) {
 				UpdateUIPlugin.logException(e);
 			}
 			initialized = false;
 		}
 		UpdateModel model = UpdateUIPlugin.getDefault().getUpdateModel();
 		model.removeUpdateModelChangedListener(modelListener);
 		super.dispose();
 	}
 	private Object getSelectedObject() {
 		ISelection selection = viewer.getSelection();

 		if (selection instanceof IStructuredSelection && !selection.isEmpty()) {
 			IStructuredSelection ssel = (IStructuredSelection) selection;
 			if (ssel.size() == 1) {
 				return ssel.getFirstElement();
 			}
 		}
 		return null;
 	}

 	private IInstallConfiguration getSelectedConfiguration(
 		Object obj,
 		boolean onlyPreserved) {
 		if (!onlyPreserved && obj instanceof IInstallConfiguration)
 			return (IInstallConfiguration) obj;
 		if (obj instanceof PreservedConfiguration)
 			return ((PreservedConfiguration) obj).getConfiguration();
 		return null;
 	}

 	private boolean isPreserved(IInstallConfiguration config) {
 		try {
 			ILocalSite localSite = SiteManager.getLocalSite();
 			IInstallConfiguration[] preservedConfigs =
 				localSite.getPreservedConfigurations();
 			for (int i = 0; i < preservedConfigs.length; i++) {
 				if (preservedConfigs[i].equals(config))
 					return true;
 			}
 			return false;
 		} catch (CoreException e) {
 			return false;
 		}
 	}

 	protected void makeActions() {
 		super.makeActions();
 		showUnconfFeaturesAction = new Action() {
 			public void run() {
 				viewer.refresh(getLocalSite());
 			}
 		};
 		showUnconfFeaturesAction.setText(
 			UpdateUIPlugin.getResourceString(KEY_SHOW_UNCONF_FEATURES));
 		showUnconfFeaturesAction.setImageDescriptor(
 			UpdateUIPluginImages.DESC_UNCONF_FEATURE_OBJ);
 		showUnconfFeaturesAction.setChecked(false);
 		showUnconfFeaturesAction.setToolTipText(
 			UpdateUIPlugin.getResourceString(KEY_SHOW_UNCONF_FEATURES_TOOLTIP));
 		drillDownAdapter = new DrillDownAdapter(viewer);
 		super.makeActions();
 		revertAction = new Action() {
 			public void run() {
 				Object obj = getSelectedObject();
 				IInstallConfiguration target = getSelectedConfiguration(obj, false);
 				if (target != null)
 					RevertSection.performRevert(target);
 			}
 		};
 		revertAction.setText(UpdateUIPlugin.getResourceString(KEY_RESTORE));
 		preserveAction = new Action() {
 			public void run() {
 				Object obj = getSelectedObject();
 				IInstallConfiguration target = getSelectedConfiguration(obj, false);
 				if (target == null)
 					return;
 				try {
 					ILocalSite localSite = SiteManager.getLocalSite();
 					localSite.addToPreservedConfigurations(target);
 					localSite.save();
 					viewer.refresh(savedFolder);
 				} catch (CoreException e) {
 					UpdateUIPlugin.logException(e);
 				}
 			}
 		};
 		preserveAction.setText(UpdateUIPlugin.getResourceString(KEY_PRESERVE));
 		removePreservedAction = new Action() {
 			public void run() {
 				Object obj = getSelectedObject();
 				IInstallConfiguration target = getSelectedConfiguration(obj, true);
 				if (target == null)
 					return;
 				if (isPreserved(target) == false)
 					return;
 				try {
 					ILocalSite localSite = SiteManager.getLocalSite();
 					localSite.removeFromPreservedConfigurations(target);
 					localSite.save();
 					viewer.remove(obj);
 				} catch (CoreException e) {
 					UpdateUIPlugin.logException(e);
 				}
 			}
 		};
 		removePreservedAction.setText(
 			UpdateUIPlugin.getResourceString(KEY_REMOVE_PRESERVED));
 		propertiesAction =
 			new PropertyDialogAction(UpdateUIPlugin.getActiveWorkbenchShell(), viewer);
 	}

 	protected void fillActionBars(IActionBars bars) {
 		IToolBarManager tbm = bars.getToolBarManager();
 		drillDownAdapter.addNavigationActions(tbm);
 		tbm.add(new Separator());
 		tbm.add(showUnconfFeaturesAction);
 	}
 	protected void fillContextMenu(IMenuManager manager) {
 		Object obj = getSelectedObject();
 		IInstallConfiguration config = getSelectedConfiguration(obj, false);
 		if (config != null && !config.isCurrent()) {
 			manager.add(revertAction);
 			manager.add(new Separator());
 		}
 		if (config != null && !isPreserved(config)) {
 			manager.add(preserveAction);
 		}
 		config = getSelectedConfiguration(obj, true);
 		if (config != null) {
 			manager.add(removePreservedAction);
 		}
 		super.fillContextMenu(manager);
 		if (obj instanceof PreservedConfiguration
 			|| obj instanceof IInstallConfiguration)
 			manager.add(propertiesAction);
 		manager.add(new Separator());
 		drillDownAdapter.addNavigationActions(manager);
 		super.fillContextMenu(manager);
 	}

 	private void registerListeners() {
 		try {
 			ILocalSite localSite = SiteManager.getLocalSite();
 			IInstallConfiguration config = localSite.getCurrentConfiguration();
 			config.addInstallConfigurationChangedListener(this);
 			IConfiguredSite[] isites = config.getConfiguredSites();
 			for (int i = 0; i < isites.length; i++) {
 				isites[i].addConfiguredSiteChangedListener(this);
 			}
 		} catch (CoreException e) {
 			UpdateUIPlugin.logException(e);
 		}
 	}

 	private void unregisterListeners() {
 		try {
 			ILocalSite localSite = SiteManager.getLocalSite();
 			IInstallConfiguration config = localSite.getCurrentConfiguration();
 			config.removeInstallConfigurationChangedListener(this);
 			IConfiguredSite[] isites = config.getConfiguredSites();
 			for (int i = 0; i < isites.length; i++) {
 				isites[i].removeConfiguredSiteChangedListener(this);
 			}
 		} catch (CoreException e) {
 			UpdateUIPlugin.logException(e);
 		}
 	}

 	/**
 	 * @see IInstallConfigurationChangedListener#installSiteAdded(ISite)
 	 */
 	public void installSiteAdded(IConfiguredSite csite) {
 		//viewer.add(getLocalSite(), csite);
 		viewer.refresh(getLocalSite());
 	}

 	/**
 	 * @see IInstallConfigurationChangedListener#installSiteRemoved(ISite)
 	 */
 	public void installSiteRemoved(IConfiguredSite site) {
 		//viewer.remove(site);
 		viewer.refresh(getLocalSite());
 	}

 	/**
 	 * @see IConfiguredSiteChangedListener#featureInstalled(IFeature)
 	 */
 	public void featureInstalled(IFeature feature) {
 		//viewer.add(feature.getSite(), feature);
 		viewer.refresh();
 	}

 	/**
 	 * @see IConfiguredSiteChangedListener#featureUninstalled(IFeature)
 	 */
 	public void featureUninstalled(IFeature feature) {
 		//viewer.remove(feature);
 		viewer.refresh();
 	}
 	public void currentInstallConfigurationChanged(IInstallConfiguration configuration) {
 		viewer.refresh();
 	}

 	public void installConfigurationRemoved(IInstallConfiguration configuration) {
 		viewer.refresh();
 	}

 }
	package org.eclipse.update.internal.ui.views;
	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IAdaptable;
	import org.eclipse.jface.action.Action;
	import org.eclipse.jface.action.IMenuManager;
	import org.eclipse.jface.action.IToolBarManager;
	import org.eclipse.jface.action.Separator;
	import org.eclipse.jface.resource.ImageDescriptor;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.ITreeContentProvider;
	import org.eclipse.jface.viewers.LabelProvider;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.ui.IActionBars;
	import org.eclipse.ui.ISharedImages;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.dialogs.PropertyDialogAction;
	import org.eclipse.ui.part.DrillDownAdapter;
	import org.eclipse.update.configuration.IConfiguredSite;
	import org.eclipse.update.configuration.IConfiguredSiteChangedListener;
	import org.eclipse.update.configuration.IInstallConfiguration;
	import org.eclipse.update.configuration.IInstallConfigurationChangedListener;
	import org.eclipse.update.configuration.ILocalSite;
	import org.eclipse.update.configuration.ILocalSiteChangedListener;
	import org.eclipse.update.core.IFeature;
	import org.eclipse.update.core.IFeatureReference;
	import org.eclipse.update.core.ISite;
	import org.eclipse.update.core.SiteManager;
	import org.eclipse.update.internal.ui.UpdateUIPlugin;
	import org.eclipse.update.internal.ui.UpdateUIPluginImages;
	import org.eclipse.update.internal.ui.manager.RevertSection;
	import org.eclipse.update.internal.ui.model.ConfigurationSiteAdapter;
	import org.eclipse.update.internal.ui.model.ConfiguredFeatureAdapter;
	import org.eclipse.update.internal.ui.model.IConfiguredFeatureAdapter;
	import org.eclipse.update.internal.ui.model.IConfiguredSiteAdapter;
	import org.eclipse.update.internal.ui.model.IFeatureAdapter;
	import org.eclipse.update.internal.ui.model.IUpdateModelChangedListener;
	import org.eclipse.update.internal.ui.model.MissingFeature;
	import org.eclipse.update.internal.ui.model.PreservedConfiguration;
	import org.eclipse.update.internal.ui.model.UpdateModel;
	import org.eclipse.update.internal.ui.parts.DefaultContentProvider;
	import org.eclipse.update.internal.ui.parts.OverlayIcon;
	import org.eclipse.update.internal.ui.model.ModelObject;

	/**
	* Insert the type's description here.
	* @see ViewPart
	*/
	public class ConfigurationView
	extends BaseTreeView
	implements
	IInstallConfigurationChangedListener,
	IConfiguredSiteChangedListener,
	ILocalSiteChangedListener {
	private static final String KEY_CURRENT = "ConfigurationView.current";
	private static final String KEY_SHOW_UNCONF_FEATURES =
	"ConfigurationView.showUnconfFeatures";
	private static final String KEY_SHOW_UNCONF_FEATURES_TOOLTIP =
	"ConfigurationView.showUnconfFeatures.tooltip";
	private Image eclipseImage;
	private Image featureImage;
	private Image unconfFeatureImage;
	private Image siteImage;
	private Image installSiteImage;
	private Image linkedSiteImage;
	private Image configImage;
	private Image currentConfigImage;
	private boolean initialized;
	private SavedFolder savedFolder;
	private HistoryFolder historyFolder;
	private Action showUnconfFeaturesAction;
	private Action revertAction;
	private Action preserveAction;
	private Action removePreservedAction;
	private Action propertiesAction;
	private IUpdateModelChangedListener modelListener;
	private DrillDownAdapter drillDownAdapter;
	private static final String KEY_RESTORE = "ConfigurationView.Popup.restore";
	private static final String KEY_PRESERVE = "ConfigurationView.Popup.preserve";
	private static final String KEY_REMOVE_PRESERVED =
	"ConfigurationView.Popup.removePreserved";
	private static final String KEY_HISTORY_FOLDER = "ConfigurationView.historyFolder";
	private static final String KEY_SAVED_FOLDER = "ConfigurationView.savedFolder";

	abstract class ViewFolder extends ModelObject {
	private String label;
	private Image image;

	public ViewFolder(String label) {
	this.label = label;
	String imageKey = ISharedImages.IMG_OBJ_FOLDER;
	image = PlatformUI.getWorkbench().getSharedImages().getImage(imageKey);
	}

	public Image getImage() {
	return image;
	}

	public String toString() {
	return label;
	}
	public abstract Object[] getChildren();
	}

	class SavedFolder extends ViewFolder {
	public SavedFolder() {
	super(UpdateUIPlugin.getResourceString(KEY_SAVED_FOLDER));
	}
	public Object[] getChildren() {
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	return makeChildren(localSite.getPreservedConfigurations());
	} catch (CoreException e) {
	return new Object[0];
	}
	}

	private Object[] makeChildren(IInstallConfiguration[] preserved) {
	Object[] children = new Object[preserved.length];
	for (int i = 0; i < preserved.length; i++) {
	children[i] = new PreservedConfiguration(preserved[i]);
	}
	return children;
	}
	}

	class HistoryFolder extends ViewFolder {
	public HistoryFolder() {
	super(UpdateUIPlugin.getResourceString(KEY_HISTORY_FOLDER));
	}
	public Object[] getChildren() {
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	return localSite.getConfigurationHistory();
	} catch (CoreException e) {
	return new Object[0];
	}
	}
	}

	class UpdateModelChangedListener implements IUpdateModelChangedListener {
	/**
	* @see IUpdateModelChangedListener#objectAdded(Object, Object)
	*/
	public void objectsAdded(Object parent, Object[] children) {
	}

	/**
	* @see IUpdateModelChangedListener#objectRemoved(Object, Object)
	*/
	public void objectsRemoved(Object parent, Object[] children) {
	}

	/**
	* @see IUpdateModelChangedListener#objectChanged(Object, String)
	*/
	public void objectChanged(Object object, String property) {
	}

	}

	class LocalSiteProvider
	extends DefaultContentProvider
	implements ITreeContentProvider {
	/**
	* @see ITreeContentProvider#getChildren(Object)
	*/
	public Object[] getChildren(Object parent) {
	if (parent instanceof UpdateModel) {
	UpdateModel model = (UpdateModel) parent;
	ILocalSite localSite = getLocalSite();
	if (localSite != null)
	return new Object[] { getLocalSite(), historyFolder, savedFolder };
	else
	return new Object[0];
	}
	if (parent instanceof ILocalSite) {
	return openLocalSite();
	}
	if (parent instanceof ViewFolder) {
	return ((ViewFolder) parent).getChildren();
	}
	if (parent instanceof PreservedConfiguration) {
	// resolve the adapter
	parent = ((PreservedConfiguration) parent).getConfiguration();
	}
	if (parent instanceof IInstallConfiguration) {
	return getConfigurationSites((IInstallConfiguration) parent);
	}
	if (parent instanceof IConfiguredSiteAdapter) {
	IConfiguredSiteAdapter adapter = (IConfiguredSiteAdapter) parent;
	boolean showUnconf = showUnconfFeaturesAction.isChecked();
	if (showUnconf)
	return getAllFeatures(adapter);
	else
	return getConfiguredFeatures(adapter);
	}
	return new Object[0];
	}

	private Object[] getConfigurationSites(IInstallConfiguration config) {
	IConfiguredSite[] sites = config.getConfiguredSites();
	Object[] adapters = new Object[sites.length];
	for (int i = 0; i < sites.length; i++) {
	adapters[i] = new ConfigurationSiteAdapter(config, sites[i]);
	}
	return adapters;
	}

	private Object[] getConfiguredFeatures(IConfiguredSiteAdapter adapter) {
	try {
	IConfiguredSite csite = adapter.getConfigurationSite();
	IFeatureReference[] refs = csite.getConfiguredFeatures();
	Object[] result = new Object[refs.length];
	for (int i = 0; i < refs.length; i++) {
	IFeature feature = refs[i].getFeature();
	result[i] = new ConfiguredFeatureAdapter(adapter, feature, true);
	}
	return result;
	} catch (CoreException e) {
	UpdateUIPlugin.logException(e);
	return new Object[0];
	}
	}

	private Object[] getAllFeatures(IConfiguredSiteAdapter adapter) {
	IConfiguredSite csite = adapter.getConfigurationSite();
	IFeatureReference[] crefs = csite.getConfiguredFeatures();
	ISite site = csite.getSite();
	IFeatureReference[] allRefs = site.getFeatureReferences();
	Object[] result = new Object[allRefs.length];

	for (int i = 0; i < allRefs.length; i++) {
	IFeature feature;
	try {
	feature = allRefs[i].getFeature();
	} catch (CoreException e) {
	feature = new MissingFeature(site, allRefs[i].getURL());
	}
	boolean configured = isOnTheList(allRefs[i], crefs);
	result[i] = new ConfiguredFeatureAdapter(adapter, feature, configured);
	}
	return result;
	}

	private boolean isOnTheList(IFeatureReference ref, IFeatureReference[] refs) {
	for (int i = 0; i < refs.length; i++) {
	IFeatureReference confRef = refs[i];
	if (confRef.getURL().equals(ref.getURL()))
	return true;
	}
	return false;
	}

	/**
	* @see ITreeContentProvider#getParent(Object)
	*/
	public Object getParent(Object child) {
	return null;
	}

	/**
	* @see ITreeContentProvider#hasChildren(Object)
	*/
	public boolean hasChildren(Object parent) {
	return !(parent instanceof IFeatureAdapter);
	}

	/**
	* @see IStructuredContentProvider#getElements(Object)
	*/
	public Object[] getElements(Object input) {
	return getChildren(input);
	}
	}

	class LocalSiteLabelProvider extends LabelProvider {
	public String getText(Object obj) {
	if (obj instanceof ILocalSite) {
	return UpdateUIPlugin.getResourceString(KEY_CURRENT);
	}
	if (obj instanceof IInstallConfiguration) {
	IInstallConfiguration config = (IInstallConfiguration) obj;
	return config.getLabel();
	}
	if (obj instanceof IConfiguredSiteAdapter) {
	IConfiguredSite csite = ((IConfiguredSiteAdapter) obj).getConfigurationSite();
	ISite site = csite.getSite();
	return site.getURL().toString();
	}
	if (obj instanceof IFeatureAdapter) {
	try {
	IFeature feature = ((IFeatureAdapter) obj).getFeature();
	String version = feature.getVersionedIdentifier().getVersion().toString();
	return feature.getLabel() + " " + version;
	} catch (CoreException e) {
	return "Error";
	}
	}
	return super.getText(obj);
	}
	public Image getImage(Object obj) {
	if (obj instanceof ILocalSite)
	return eclipseImage;
	if (obj instanceof IFeatureAdapter) {
	return getFeatureImage((IFeatureAdapter) obj);
	}
	if (obj instanceof IConfiguredSiteAdapter) {
	IConfiguredSite csite = ((IConfiguredSiteAdapter) obj).getConfigurationSite();
	if (csite.isUpdateable())
	return installSiteImage;
	else
	return linkedSiteImage;
	}
	if (obj instanceof ViewFolder) {
	return ((ViewFolder) obj).getImage();
	}
	if (obj instanceof PreservedConfiguration) {
	obj = ((PreservedConfiguration) obj).getConfiguration();
	}
	if (obj instanceof IInstallConfiguration) {
	IInstallConfiguration config = (IInstallConfiguration) obj;
	if (config.isCurrent())
	return currentConfigImage;
	return configImage;
	}
	return null;
	}

	private Image getFeatureImage(IFeatureAdapter adapter) {
	boolean configured = true;
	if (adapter instanceof IConfiguredFeatureAdapter) {
	configured = ((IConfiguredFeatureAdapter) adapter).isConfigured();
	}
	return (configured ? featureImage : unconfFeatureImage);
	}
	}

	public ConfigurationView() {
	eclipseImage = UpdateUIPluginImages.DESC_ECLIPSE_OBJ.createImage();
	featureImage = UpdateUIPluginImages.DESC_FEATURE_OBJ.createImage();
	unconfFeatureImage = UpdateUIPluginImages.DESC_UNCONF_FEATURE_OBJ.createImage();
	ImageDescriptor siteDesc = UpdateUIPluginImages.DESC_SITE_OBJ;
	siteImage = siteDesc.createImage();
	ImageDescriptor installSiteDesc =
	new OverlayIcon(
	siteDesc,
	new ImageDescriptor[][] { { UpdateUIPluginImages.DESC_INSTALLABLE_CO }
	});
	installSiteImage = installSiteDesc.createImage();
	ImageDescriptor linkedSiteDesc =
	new OverlayIcon(
	siteDesc,
	new ImageDescriptor[][] { { UpdateUIPluginImages.DESC_LINKED_CO }
	});
	linkedSiteImage = linkedSiteDesc.createImage();
	configImage = UpdateUIPluginImages.DESC_CONFIG_OBJ.createImage();
	ImageDescriptor cdesc =
	new OverlayIcon(
	UpdateUIPluginImages.DESC_CONFIG_OBJ,
	new ImageDescriptor[][] { {
	}, {
	UpdateUIPluginImages.DESC_CURRENT_CO }
	});
	currentConfigImage = cdesc.createImage();
	savedFolder = new SavedFolder();
	historyFolder = new HistoryFolder();
	}

	public void initProviders() {
	viewer.setContentProvider(new LocalSiteProvider());
	viewer.setInput(UpdateUIPlugin.getDefault().getUpdateModel());
	viewer.setLabelProvider(new LocalSiteLabelProvider());
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	localSite.addLocalSiteChangedListener(this);
	} catch (CoreException e) {
	UpdateUIPlugin.logException(e);
	}
	UpdateModel model = UpdateUIPlugin.getDefault().getUpdateModel();
	modelListener = new IUpdateModelChangedListener() {
	public void objectsAdded(Object parent, Object[] children) {
	}
	public void objectsRemoved(Object parent, Object[] children) {
	}
	public void objectChanged(Object obj, String property) {
	viewer.update(obj, null);
	}
	};
	model.addUpdateModelChangedListener(modelListener);
	}

	private ILocalSite getLocalSite() {
	try {
	return SiteManager.getLocalSite();
	} catch (CoreException e) {
	UpdateUIPlugin.logException(e);
	return null;
	}
	}

	private Object[] openLocalSite() {
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	IInstallConfiguration config = localSite.getCurrentConfiguration();
	IConfiguredSite[] sites = config.getConfiguredSites();
	Object[] result = new Object[sites.length];
	for (int i = 0; i < sites.length; i++) {
	result[i] = new ConfigurationSiteAdapter(config, sites[i]);
	}
	if (!initialized) {
	config.addInstallConfigurationChangedListener(this);
	initialized = true;
	}
	return result;
	} catch (CoreException e) {
	UpdateUIPlugin.logException(e);
	return new Object[0];
	}
	}

	public void dispose() {
	eclipseImage.dispose();
	featureImage.dispose();
	unconfFeatureImage.dispose();
	installSiteImage.dispose();
	linkedSiteImage.dispose();
	configImage.dispose();
	currentConfigImage.dispose();

	if (initialized) {
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	localSite.removeLocalSiteChangedListener(this);
	IInstallConfiguration config = localSite.getCurrentConfiguration();
	config.removeInstallConfigurationChangedListener(this);
	} catch (CoreException e) {
	UpdateUIPlugin.logException(e);
	}
	initialized = false;
	}
	UpdateModel model = UpdateUIPlugin.getDefault().getUpdateModel();
	model.removeUpdateModelChangedListener(modelListener);
	super.dispose();
	}
	private Object getSelectedObject() {
	ISelection selection = viewer.getSelection();

	if (selection instanceof IStructuredSelection && !selection.isEmpty()) {
	IStructuredSelection ssel = (IStructuredSelection) selection;
	if (ssel.size() == 1) {
	return ssel.getFirstElement();
	}
	}
	return null;
	}

	private IInstallConfiguration getSelectedConfiguration(
	Object obj,
	boolean onlyPreserved) {
	if (!onlyPreserved && obj instanceof IInstallConfiguration)
	return (IInstallConfiguration) obj;
	if (obj instanceof PreservedConfiguration)
	return ((PreservedConfiguration) obj).getConfiguration();
	return null;
	}

	private boolean isPreserved(IInstallConfiguration config) {
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	IInstallConfiguration[] preservedConfigs =
	localSite.getPreservedConfigurations();
	for (int i = 0; i < preservedConfigs.length; i++) {
	if (preservedConfigs[i].equals(config))
	return true;
	}
	return false;
	} catch (CoreException e) {
	return false;
	}
	}

	protected void makeActions() {
	super.makeActions();
	showUnconfFeaturesAction = new Action() {
	public void run() {
	viewer.refresh(getLocalSite());
	}
	};
	showUnconfFeaturesAction.setText(
	UpdateUIPlugin.getResourceString(KEY_SHOW_UNCONF_FEATURES));
	showUnconfFeaturesAction.setImageDescriptor(
	UpdateUIPluginImages.DESC_UNCONF_FEATURE_OBJ);
	showUnconfFeaturesAction.setChecked(false);
	showUnconfFeaturesAction.setToolTipText(
	UpdateUIPlugin.getResourceString(KEY_SHOW_UNCONF_FEATURES_TOOLTIP));
	drillDownAdapter = new DrillDownAdapter(viewer);
	super.makeActions();
	revertAction = new Action() {
	public void run() {
	Object obj = getSelectedObject();
	IInstallConfiguration target = getSelectedConfiguration(obj, false);
	if (target != null)
	RevertSection.performRevert(target);
	}
	};
	revertAction.setText(UpdateUIPlugin.getResourceString(KEY_RESTORE));
	preserveAction = new Action() {
	public void run() {
	Object obj = getSelectedObject();
	IInstallConfiguration target = getSelectedConfiguration(obj, false);
	if (target == null)
	return;
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	localSite.addToPreservedConfigurations(target);
	localSite.save();
	viewer.refresh(savedFolder);
	} catch (CoreException e) {
	UpdateUIPlugin.logException(e);
	}
	}
	};
	preserveAction.setText(UpdateUIPlugin.getResourceString(KEY_PRESERVE));
	removePreservedAction = new Action() {
	public void run() {
	Object obj = getSelectedObject();
	IInstallConfiguration target = getSelectedConfiguration(obj, true);
	if (target == null)
	return;
	if (isPreserved(target) == false)
	return;
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	localSite.removeFromPreservedConfigurations(target);
	localSite.save();
	viewer.remove(obj);
	} catch (CoreException e) {
	UpdateUIPlugin.logException(e);
	}
	}
	};
	removePreservedAction.setText(
	UpdateUIPlugin.getResourceString(KEY_REMOVE_PRESERVED));
	propertiesAction =
	new PropertyDialogAction(UpdateUIPlugin.getActiveWorkbenchShell(), viewer);
	}

	protected void fillActionBars(IActionBars bars) {
	IToolBarManager tbm = bars.getToolBarManager();
	drillDownAdapter.addNavigationActions(tbm);
	tbm.add(new Separator());
	tbm.add(showUnconfFeaturesAction);
	}
	protected void fillContextMenu(IMenuManager manager) {
	Object obj = getSelectedObject();
	IInstallConfiguration config = getSelectedConfiguration(obj, false);
	if (config != null && !config.isCurrent()) {
	manager.add(revertAction);
	manager.add(new Separator());
	}
	if (config != null && !isPreserved(config)) {
	manager.add(preserveAction);
	}
	config = getSelectedConfiguration(obj, true);
	if (config != null) {
	manager.add(removePreservedAction);
	}
	super.fillContextMenu(manager);
	if (obj instanceof PreservedConfiguration
	\|\| obj instanceof IInstallConfiguration)
	manager.add(propertiesAction);
	manager.add(new Separator());
	drillDownAdapter.addNavigationActions(manager);
	super.fillContextMenu(manager);
	}

	private void registerListeners() {
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	IInstallConfiguration config = localSite.getCurrentConfiguration();
	config.addInstallConfigurationChangedListener(this);
	IConfiguredSite[] isites = config.getConfiguredSites();
	for (int i = 0; i < isites.length; i++) {
	isites[i].addConfiguredSiteChangedListener(this);
	}
	} catch (CoreException e) {
	UpdateUIPlugin.logException(e);
	}
	}

	private void unregisterListeners() {
	try {
	ILocalSite localSite = SiteManager.getLocalSite();
	IInstallConfiguration config = localSite.getCurrentConfiguration();
	config.removeInstallConfigurationChangedListener(this);
	IConfiguredSite[] isites = config.getConfiguredSites();
	for (int i = 0; i < isites.length; i++) {
	isites[i].removeConfiguredSiteChangedListener(this);
	}
	} catch (CoreException e) {
	UpdateUIPlugin.logException(e);
	}
	}

	/**
	* @see IInstallConfigurationChangedListener#installSiteAdded(ISite)
	*/
	public void installSiteAdded(IConfiguredSite csite) {
	//viewer.add(getLocalSite(), csite);
	viewer.refresh(getLocalSite());
	}

	/**
	* @see IInstallConfigurationChangedListener#installSiteRemoved(ISite)
	*/
	public void installSiteRemoved(IConfiguredSite site) {
	//viewer.remove(site);
	viewer.refresh(getLocalSite());
	}

	/**
	* @see IConfiguredSiteChangedListener#featureInstalled(IFeature)
	*/
	public void featureInstalled(IFeature feature) {
	//viewer.add(feature.getSite(), feature);
	viewer.refresh();
	}

	/**
	* @see IConfiguredSiteChangedListener#featureUninstalled(IFeature)
	*/
	public void featureUninstalled(IFeature feature) {
	//viewer.remove(feature);
	viewer.refresh();
	}
	public void currentInstallConfigurationChanged(IInstallConfiguration configuration) {
	viewer.refresh();
	}

	public void installConfigurationRemoved(IInstallConfiguration configuration) {
	viewer.refresh();
	}

	}