update/org.eclipse.update.core/src/org/eclipse/update/core/Site.java - platform/eclipse.platform - Git at Google

 /*******************************************************************************
  *  Copyright (c) 2000, 2010 IBM Corporation and others.
  *  All rights reserved. This program and the accompanying materials
  *  are made available under the terms of the Eclipse Public License v1.0
  *  which accompanies this distribution, and is available at
  *  http://www.eclipse.org/legal/epl-v10.html
  *
  *  Contributors:
  *     IBM Corporation - initial API and implementation
  *     James D Miles (IBM Corp.) - bug 191783, NullPointerException in FeatureDownloader
  *******************************************************************************/
 package org.eclipse.update.core;

 import java.net.*;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;

 import org.eclipse.core.runtime.*;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.update.configuration.*;
 import org.eclipse.update.core.model.*;
 import org.eclipse.update.internal.core.*;

 /**
  * Convenience implementation of a site.
  * <p>
  * This class may be instantiated or subclassed by clients.
  * </p>
  * <p>
  * <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
  * change significantly before reaching stability. It is being made available at this early stage to solicit feedback
  * from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
  * (repeatedly) as the API evolves.
  * </p>
  * @see org.eclipse.update.core.ISite
  * @see org.eclipse.update.core.model.SiteModel
  * @since 2.0
  * @deprecated The org.eclipse.update component has been replaced by Equinox p2.
  * This API will be deleted in a future release. See bug 311590 for details.
  */
 public class Site extends SiteModel implements ISiteWithMirrors {

 	/**
 	 * Default installation path for features
 	 *
 	 * @since 2.0
 	 */
 	public static final String DEFAULT_INSTALLED_FEATURE_PATH = "features/"; //$NON-NLS-1$

 	/**
 	 * Default installation path for plug-ins and plug-in fragments
 	 *
 	 * @since 2.0
 	 */
 	public static final String DEFAULT_PLUGIN_PATH = "plugins/"; //$NON-NLS-1$

 	/**
 	 * Default path on a site where packaged features are located
 	 *
 	 * @since 2.0
 	 */
 	public static final String DEFAULT_FEATURE_PATH = "features/"; //$NON-NLS-1$

 	/**
 	 * Default site manifest file name
 	 *
 	 * @since 2.0
 	 */
 	public static final String SITE_FILE = "site"; //$NON-NLS-1$

 	/**
 	 * Default site manifest extension
 	 *
 	 * @since 2.0
 	 */
 	public static final String SITE_XML = SITE_FILE + ".xml"; //$NON-NLS-1$

 	private ISiteContentProvider siteContentProvider;

 	private Map featureCache = Collections.synchronizedMap(new HashMap()); // key=URLKey value=IFeature

 	/**
 	 * Constructor for Site
 	 */
 	public Site() {
 		super();
 	}

 	/**
 	 * Compares two sites for equality
 	 *
 	 * @param obj site object to compare with
 	 * @return <code>true</code> if the two sites are equal,
 	 * <code>false</code> otherwise
 	 * @since 2.0
 	 */
 	public boolean equals(Object obj) {
 		if (!(obj instanceof ISite))
 			return false;
 		if (getURL() == null)
 			return false;
 		ISite otherSite = (ISite) obj;

 		return UpdateManagerUtils.sameURL(getURL(), otherSite.getURL());
 	}

 	/**
 	 * Returns the site URL
 	 *
 	 * @see ISite#getURL()
 	 * @since 2.0
 	 */
 	public URL getURL() {
 		URL url = null;
 		try {
 			url = getSiteContentProvider().getURL();
 		} catch (CoreException e) {
 			UpdateCore.warn(null, e);
 		}
 		return url;
 	}

 	/**
 	 * Returns the site description.
 	 *
 	 * @see ISite#getDescription()
 	 * @since 2.0
 	 */
 	public IURLEntry getDescription() {
 		return (IURLEntry) getDescriptionModel();
 	}

 	/**
 	 * Returns an array of categories defined by the site.
 	 *
 	 * @see ISite#getCategories()
 	 * @since 2.0
 	 */
 	public ICategory[] getCategories() {
 		CategoryModel[] result = getCategoryModels();
 		if (result.length == 0)
 			return new ICategory[0];
 		else
 			return (ICategory[]) result;
 	}

 	/**
 	 * Returns the named site category.
 	 *
 	 * @see ISite#getCategory(String)
 	 * @since 2.0
 	 */
 	public ICategory getCategory(String key) {
 		ICategory result = null;
 		boolean found = false;
 		int length = getCategoryModels().length;

 		for (int i = 0; i < length; i++) {
 			if (getCategoryModels()[i].getName().equals(key)) {
 				result = (ICategory) getCategoryModels()[i];
 				found = true;
 				break;
 			}
 		}

 		//DEBUG:
 		if (!found) {
 			String URLString = (this.getURL() != null) ? this.getURL().toExternalForm() : "<no site url>"; //$NON-NLS-1$
 			UpdateCore.warn(NLS.bind(Messages.Site_CannotFindCategory, (new String[] { key, URLString })));
 			if (getCategoryModels().length <= 0)
 				UpdateCore.warn(Messages.Site_NoCategories);
 		}

 		return result;
 	}

 	/**
 	 * Returns an array of references to features on this site.
 	 *
 	 * @see ISite#getFeatureReferences()
 	 * @since 2.0
 	 */
 	public ISiteFeatureReference[] getRawFeatureReferences() {
 		FeatureReferenceModel[] result = getFeatureReferenceModels();
 		if (result.length == 0)
 			return new ISiteFeatureReference[0];
 		else
 			return (ISiteFeatureReference[]) result;
 	}

 	/**
 	 * @see org.eclipse.update.core.ISite#getFeatureReferences()
 	 */
 	public ISiteFeatureReference[] getFeatureReferences() {
 		// only filter local site
 		if (getCurrentConfiguredSite()!=null)
 			return filterFeatures(getRawFeatureReferences());
 		else
 			return getRawFeatureReferences();

 	}

 	/*
 	 * Method filterFeatures.
 	 * Also implemented in Feature
 	 *
 	 * @param list
 	 * @return List
 	 */
 	private ISiteFeatureReference[] filterFeatures(ISiteFeatureReference[] allIncluded) {
 		List list = new ArrayList();
 		if (allIncluded!=null){
 			for (int i = 0; i < allIncluded.length; i++) {
 				ISiteFeatureReference included = allIncluded[i];
 				if (UpdateManagerUtils.isValidEnvironment(included))
 					list.add(included);
 				else{
 					if (UpdateCore.DEBUG && UpdateCore.DEBUG_SHOW_WARNINGS){
 						UpdateCore.warn("Filtered out feature reference:"+included); //$NON-NLS-1$
 					}
 				}
 			}
 		}

 		ISiteFeatureReference[] result = new ISiteFeatureReference[list.size()];
 		if (!list.isEmpty()){
 			list.toArray(result);
 		}

 		return result;
 	}

 	/**
 	 * Returns a reference to the specified feature on this site.
 	 *
 	 * @see ISite#getFeatureReference(IFeature)
 	 * @since 2.0
 	 */
 	public ISiteFeatureReference getFeatureReference(IFeature feature) {

 		if (feature == null) {
 			UpdateCore.warn("Site:getFeatureReference: The feature is null"); //$NON-NLS-1$
 			return null;
 		}

 		ISiteFeatureReference[] references = getFeatureReferences();
 		ISiteFeatureReference currentReference = null;
 		for (int i = 0; i < references.length; i++) {
 			currentReference = references[i];
 			//if (UpdateManagerUtils.sameURL(feature.getURL(), currentReference.getURL()))
 			//	return currentReference;
 			try {
 				if (feature.getVersionedIdentifier().equals(currentReference.getVersionedIdentifier()))
 					return currentReference;
 			} catch (CoreException e) {
 				// TODO Auto-generated catch block
 				e.printStackTrace();
 			}
 		}

 		UpdateCore.warn("Feature " + feature + " not found on site" + this.getURL()); //$NON-NLS-1$ //$NON-NLS-2$
 		return null;
 	}

 	/**
 	 * Returns an array of plug-in and non-plug-in archives located
 	 * on this site
 	 *
 	 * @see ISite#getArchives()
 	 * @since 2.0
 	 */
 	public IArchiveReference[] getArchives() {
 		ArchiveReferenceModel[] result = getArchiveReferenceModels();
 		if (result.length == 0)
 			return new IArchiveReference[0];
 		else
 			return (IArchiveReference[]) result;
 	}

 	/**
 	 * Returns the content provider for this site.
 	 *
 	 * @see ISite#getSiteContentProvider()
 	 * @since 2.0
 	 */
 	public ISiteContentProvider getSiteContentProvider() throws CoreException {
 		if (siteContentProvider == null) {
 			throw Utilities.newCoreException(Messages.Site_NoContentProvider, null);
 		}
 		return siteContentProvider;
 	}

 	/**
 	 * Returns the default type for a packaged feature supported by this site
 	 *
 	 * @see ISite#getDefaultPackagedFeatureType()
 	 * @since 2.0
 	 */
 	public String getDefaultPackagedFeatureType() {
 		return DEFAULT_PACKAGED_FEATURE_TYPE;
 	}

 	/**
 	 * Returns an array of entries corresponding to plug-ins installed
 	 * on this site.
 	 *
 	 * @see ISite#getPluginEntries()
 	 * @since 2.0
 	 */
 	public IPluginEntry[] getPluginEntries() {
 		throw new UnsupportedOperationException();
 	}

 	/**
 	 * Returns the number of plug-ins installed on this site
 	 *
 	 * @see ISite#getPluginEntryCount()
 	 * @since 2.0
 	 */
 	public int getPluginEntryCount() {
 		throw new UnsupportedOperationException();
 	}

 	/**
 	 * Returns an array of entries corresponding to plug-ins that are
 	 * installed on this site and are referenced only by the specified
 	 * feature.
 	 *
 	 * @see ISite#getPluginEntriesOnlyReferencedBy(IFeature)	 *
 	 * @since 2.0
 	 */
 	public IPluginEntry[] getPluginEntriesOnlyReferencedBy(IFeature feature) throws CoreException {

 		IPluginEntry[] pluginsToRemove = new IPluginEntry[0];
 		if (feature == null)
 			return pluginsToRemove;

 		// get the plugins from the feature
 		IPluginEntry[] entries = feature.getPluginEntries();
 		if (entries != null) {
 			// get all the other plugins from all the other features
 			Set allPluginID = new HashSet();
 			ISiteFeatureReference[] features = getFeatureReferences();
 			if (features != null) {
 				for (int indexFeatures = 0; indexFeatures < features.length; indexFeatures++) {
 					IFeature featureToCompare = null;
 					try {
 						featureToCompare = features[indexFeatures].getFeature(null);
 					} catch (CoreException e) {
 						UpdateCore.warn(null, e);
 					}
 					if (!feature.equals(featureToCompare)) {
 						IPluginEntry[] pluginEntries = features[indexFeatures].getFeature(null).getPluginEntries();
 						if (pluginEntries != null) {
 							for (int indexEntries = 0; indexEntries < pluginEntries.length; indexEntries++) {
 								allPluginID.add(pluginEntries[indexEntries].getVersionedIdentifier());
 							}
 						}
 					}
 				}
 			}

 			// create the delta with the plugins that may be still used by other configured or unconfigured feature
 			List plugins = new ArrayList();
 			for (int indexPlugins = 0; indexPlugins < entries.length; indexPlugins++) {
 				if (!allPluginID.contains(entries[indexPlugins].getVersionedIdentifier())) {
 					plugins.add(entries[indexPlugins]);
 				}
 			}

 			// move List into Array
 			if (!plugins.isEmpty()) {
 				pluginsToRemove = new IPluginEntry[plugins.size()];
 				plugins.toArray(pluginsToRemove);
 			}
 		}

 		return pluginsToRemove;
 	}

 	/**
 	 * Adds a new plug-in entry to this site.
 	 * This implementation always throws UnsupportedOperationException
 	 * because this implementation does not support the install action.
 	 *
 	 * @see ISite#addPluginEntry(IPluginEntry)
 	 * @exception java.lang.UnsupportedOperationException
 	 * @since 2.0
 	 */
 	public void addPluginEntry(IPluginEntry pluginEntry) {
 		throw new UnsupportedOperationException();
 	}

 	/**
 	 * Get download size for the specified feature on this site.
 	 * This implementation always throws UnsupportedOperationException
 	 * because this implementation does not support the install action.
 	 *
 	 * @see ISite#getDownloadSizeFor(IFeature)
 	 * @exception java.lang.UnsupportedOperationException
 	 * @since 2.0
 	 */
 	public long getDownloadSizeFor(IFeature feature) {
 		throw new UnsupportedOperationException();
 	}

 	/**
 	 * Get install size for the specified feature on this site.
 	 * This implementation always throws UnsupportedOperationException
 	 * because this implementation does not support the install action.
 	 *
 	 * @see ISite#getInstallSizeFor(IFeature)
 	 * @exception java.lang.UnsupportedOperationException
 	 * @since 2.0
 	 */
 	public long getInstallSizeFor(IFeature feature) {
 		throw new UnsupportedOperationException();
 	}

 	/**
 	 * Install the specified feature and all optional features on this site.
 	 * This implementation always throws UnsupportedOperationException
 	 * because this implementation does not support the install action.
 	 *
 	 * @see ISite#install(IFeature, IVerificationListener, IProgressMonitor)
 	 * @exception InstallAbortedException when the user cancels the install
 	 * @exception CoreException
 	 * @exception java.lang.UnsupportedOperationException
 	 * @since 2.0
 	 */
 	public IFeatureReference install(IFeature sourceFeature, IVerificationListener verificationListener, IProgressMonitor progress) throws InstallAbortedException, CoreException {
 		throw new UnsupportedOperationException();
 	}

 	/**
 	 * Install the specified feature and listed optional features on this site.
 	 * This implementation always throws UnsupportedOperationException
 	 * because this implementation does not support the install action.
 	 *
 	 * @see ISite#install(IFeature, IVerificationListener, IProgressMonitor)
 	 * @exception InstallAbortedException when the user cancels the install
 	 * @exception CoreException
 	 * @exception java.lang.UnsupportedOperationException
 	 * @since 2.0
 	 */
 	public IFeatureReference install(IFeature sourceFeature, IFeatureReference[] optionalFeatures, IVerificationListener verificationListener, IProgressMonitor progress) throws InstallAbortedException, CoreException {
 		throw new UnsupportedOperationException();
 	}

 	/**
 	 * Install the specified feature on this site using the content consumer as
 	 * a context to install the feature in.
 	 * This implementation always throws UnsupportedOperationException
 	 * because this implementation does not support the install action.
 	 *
 	 * @param sourceFeature feature to install
 	 * @param parentContentConsumer content consumer of the parent feature
 	 * @param parentVerifier verifier of the parent feature
 	 * @param verificationListener install verification listener
 	 * @param progress install monitor, can be <code>null</code>
 	 * @exception InstallAbortedException when the user cancels the install
 	 * @exception CoreException
 	 * @exception java.lang.UnsupportedOperationException
 	 * @since 2.0
 	 */
 	public IFeatureReference install(IFeature sourceFeature, IFeatureReference[] optionalFeatures, IFeatureContentConsumer parentContentConsumer, IVerifier parentVerifier, IVerificationListener verificationListener, IProgressMonitor progress)
 		throws CoreException {
 		throw new UnsupportedOperationException();
 	}

 	/**
 	 * Remove (uninstall) the specified feature from this site.
 	 * This implementation always throws UnsupportedOperationException
 	 * because this implementation does not support the remove action.
 	 *
 	 * @see ISite#remove(IFeature, IProgressMonitor)
 	 * @exception java.lang.UnsupportedOperationException
 	 * @since 2.0
 	 */
 	public void remove(IFeature feature, IProgressMonitor progress) throws CoreException {
 		throw new UnsupportedOperationException();
 	}

 	/**
 	 * Sets the site content provider.
 	 *
 	 * @see ISite#setSiteContentProvider(ISiteContentProvider)
 	 * @since 2.0
 	 */
 	public void setSiteContentProvider(ISiteContentProvider siteContentProvider) {
 		this.siteContentProvider = siteContentProvider;
 	}
 	/**
 	 * @see ISite#getCurrentConfiguredSite()
 	 */
 	public IConfiguredSite getCurrentConfiguredSite() {
 		return (IConfiguredSite) getConfiguredSiteModel();
 	}

 	/**
 	 * @see org.eclipse.update.core.ISite#createFeature(String, URL)
 	 * @deprecated
 	 */
 	public IFeature createFeature(String type, URL url) throws CoreException {
 		return createFeature(type,url,null);
 	}

 	/**
 	 * @see org.eclipse.update.core.ISite#createFeature(String, URL,
 	 * IProgressMonitor)
 	 */
 	public IFeature createFeature(String type, URL url, IProgressMonitor monitor) throws CoreException {

 		if(url == null) {
 			UpdateCore.warn("The feature URL passed is null");
 			return null;
 		}

 		// First check the cache
 		URLKey key = new URLKey(url);
 		IFeature feature = (IFeature) featureCache.get(key);
 		if (feature != null) return feature;

 		// Create a new one
 		if (type == null || type.equals("")) { //$NON-NLS-1$
 			// ask the Site for the default type
 			type = getDefaultPackagedFeatureType();
 		}

 		IFeatureFactory factory = FeatureTypeFactory.getInstance().getFactory(type);
 		feature = factory.createFeature(url, this, monitor);
 		if (feature != null) {
 			// Add the feature to the cache
 			featureCache.put(key, feature);
 		}
 		return feature;
 	}

 	protected void removeFeatureFromCache(URL featureURL) {
 		URLKey key = new URLKey(featureURL);
 		featureCache.remove(key);
 	}

 	/**
 	 * Return an array of mirror update sites.
 	 *
 	 * @return an array of mirror update sites
 	 * @since 2.0
 	 */
 	public IURLEntry[] getMirrorSiteEntries() {
 		URLEntryModel[] result = getMirrorSiteEntryModels();
 		if (result.length == 0)
 			return new IURLEntry[0];
 		else
 			return (IURLEntry[]) result;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2010 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	* James D Miles (IBM Corp.) - bug 191783, NullPointerException in FeatureDownloader
	*******************************************************************************/
	package org.eclipse.update.core;

	import java.net.*;
	import java.util.ArrayList;
	import java.util.Collections;
	import java.util.HashMap;
	import java.util.HashSet;
	import java.util.List;
	import java.util.Map;
	import java.util.Set;

	import org.eclipse.core.runtime.*;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.update.configuration.*;
	import org.eclipse.update.core.model.*;
	import org.eclipse.update.internal.core.*;

	/**
	* Convenience implementation of a site.
	* <p>
	* This class may be instantiated or subclassed by clients.
	* </p>
	* <p>
	* <b>Note:</b> This class/interface is part of an interim API that is still under development and expected to
	* change significantly before reaching stability. It is being made available at this early stage to solicit feedback
	* from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
	* (repeatedly) as the API evolves.
	* </p>
	* @see org.eclipse.update.core.ISite
	* @see org.eclipse.update.core.model.SiteModel
	* @since 2.0
	* @deprecated The org.eclipse.update component has been replaced by Equinox p2.
	* This API will be deleted in a future release. See bug 311590 for details.
	*/
	public class Site extends SiteModel implements ISiteWithMirrors {

	/**
	* Default installation path for features
	*
	* @since 2.0
	*/
	public static final String DEFAULT_INSTALLED_FEATURE_PATH = "features/"; //$NON-NLS-1$

	/**
	* Default installation path for plug-ins and plug-in fragments
	*
	* @since 2.0
	*/
	public static final String DEFAULT_PLUGIN_PATH = "plugins/"; //$NON-NLS-1$

	/**
	* Default path on a site where packaged features are located
	*
	* @since 2.0
	*/
	public static final String DEFAULT_FEATURE_PATH = "features/"; //$NON-NLS-1$

	/**
	* Default site manifest file name
	*
	* @since 2.0
	*/
	public static final String SITE_FILE = "site"; //$NON-NLS-1$

	/**
	* Default site manifest extension
	*
	* @since 2.0
	*/
	public static final String SITE_XML = SITE_FILE + ".xml"; //$NON-NLS-1$

	private ISiteContentProvider siteContentProvider;

	private Map featureCache = Collections.synchronizedMap(new HashMap()); // key=URLKey value=IFeature

	/**
	* Constructor for Site
	*/
	public Site() {
	super();
	}

	/**
	* Compares two sites for equality
	*
	* @param obj site object to compare with
	* @return <code>true</code> if the two sites are equal,
	* <code>false</code> otherwise
	* @since 2.0
	*/
	public boolean equals(Object obj) {
	if (!(obj instanceof ISite))
	return false;
	if (getURL() == null)
	return false;
	ISite otherSite = (ISite) obj;

	return UpdateManagerUtils.sameURL(getURL(), otherSite.getURL());
	}

	/**
	* Returns the site URL
	*
	* @see ISite#getURL()
	* @since 2.0
	*/
	public URL getURL() {
	URL url = null;
	try {
	url = getSiteContentProvider().getURL();
	} catch (CoreException e) {
	UpdateCore.warn(null, e);
	}
	return url;
	}

	/**
	* Returns the site description.
	*
	* @see ISite#getDescription()
	* @since 2.0
	*/
	public IURLEntry getDescription() {
	return (IURLEntry) getDescriptionModel();
	}

	/**
	* Returns an array of categories defined by the site.
	*
	* @see ISite#getCategories()
	* @since 2.0
	*/
	public ICategory[] getCategories() {
	CategoryModel[] result = getCategoryModels();
	if (result.length == 0)
	return new ICategory[0];
	else
	return (ICategory[]) result;
	}

	/**
	* Returns the named site category.
	*
	* @see ISite#getCategory(String)
	* @since 2.0
	*/
	public ICategory getCategory(String key) {
	ICategory result = null;
	boolean found = false;
	int length = getCategoryModels().length;

	for (int i = 0; i < length; i++) {
	if (getCategoryModels()[i].getName().equals(key)) {
	result = (ICategory) getCategoryModels()[i];
	found = true;
	break;
	}
	}

	//DEBUG:
	if (!found) {
	String URLString = (this.getURL() != null) ? this.getURL().toExternalForm() : "<no site url>"; //$NON-NLS-1$
	UpdateCore.warn(NLS.bind(Messages.Site_CannotFindCategory, (new String[] { key, URLString })));
	if (getCategoryModels().length <= 0)
	UpdateCore.warn(Messages.Site_NoCategories);
	}

	return result;
	}

	/**
	* Returns an array of references to features on this site.
	*
	* @see ISite#getFeatureReferences()
	* @since 2.0
	*/
	public ISiteFeatureReference[] getRawFeatureReferences() {
	FeatureReferenceModel[] result = getFeatureReferenceModels();
	if (result.length == 0)
	return new ISiteFeatureReference[0];
	else
	return (ISiteFeatureReference[]) result;
	}

	/**
	* @see org.eclipse.update.core.ISite#getFeatureReferences()
	*/
	public ISiteFeatureReference[] getFeatureReferences() {
	// only filter local site
	if (getCurrentConfiguredSite()!=null)
	return filterFeatures(getRawFeatureReferences());
	else
	return getRawFeatureReferences();

	}

	/*
	* Method filterFeatures.
	* Also implemented in Feature
	*
	* @param list
	* @return List
	*/
	private ISiteFeatureReference[] filterFeatures(ISiteFeatureReference[] allIncluded) {
	List list = new ArrayList();
	if (allIncluded!=null){
	for (int i = 0; i < allIncluded.length; i++) {
	ISiteFeatureReference included = allIncluded[i];
	if (UpdateManagerUtils.isValidEnvironment(included))
	list.add(included);
	else{
	if (UpdateCore.DEBUG && UpdateCore.DEBUG_SHOW_WARNINGS){
	UpdateCore.warn("Filtered out feature reference:"+included); //$NON-NLS-1$
	}
	}
	}
	}

	ISiteFeatureReference[] result = new ISiteFeatureReference[list.size()];
	if (!list.isEmpty()){
	list.toArray(result);
	}

	return result;
	}

	/**
	* Returns a reference to the specified feature on this site.
	*
	* @see ISite#getFeatureReference(IFeature)
	* @since 2.0
	*/
	public ISiteFeatureReference getFeatureReference(IFeature feature) {

	if (feature == null) {
	UpdateCore.warn("Site:getFeatureReference: The feature is null"); //$NON-NLS-1$
	return null;
	}

	ISiteFeatureReference[] references = getFeatureReferences();
	ISiteFeatureReference currentReference = null;
	for (int i = 0; i < references.length; i++) {
	currentReference = references[i];
	//if (UpdateManagerUtils.sameURL(feature.getURL(), currentReference.getURL()))
	// return currentReference;
	try {
	if (feature.getVersionedIdentifier().equals(currentReference.getVersionedIdentifier()))
	return currentReference;
	} catch (CoreException e) {
	// TODO Auto-generated catch block
	e.printStackTrace();
	}
	}

	UpdateCore.warn("Feature " + feature + " not found on site" + this.getURL()); //$NON-NLS-1$ //$NON-NLS-2$
	return null;
	}

	/**
	* Returns an array of plug-in and non-plug-in archives located
	* on this site
	*
	* @see ISite#getArchives()
	* @since 2.0
	*/
	public IArchiveReference[] getArchives() {
	ArchiveReferenceModel[] result = getArchiveReferenceModels();
	if (result.length == 0)
	return new IArchiveReference[0];
	else
	return (IArchiveReference[]) result;
	}

	/**
	* Returns the content provider for this site.
	*
	* @see ISite#getSiteContentProvider()
	* @since 2.0
	*/
	public ISiteContentProvider getSiteContentProvider() throws CoreException {
	if (siteContentProvider == null) {
	throw Utilities.newCoreException(Messages.Site_NoContentProvider, null);
	}
	return siteContentProvider;
	}

	/**
	* Returns the default type for a packaged feature supported by this site
	*
	* @see ISite#getDefaultPackagedFeatureType()
	* @since 2.0
	*/
	public String getDefaultPackagedFeatureType() {
	return DEFAULT_PACKAGED_FEATURE_TYPE;
	}

	/**
	* Returns an array of entries corresponding to plug-ins installed
	* on this site.
	*
	* @see ISite#getPluginEntries()
	* @since 2.0
	*/
	public IPluginEntry[] getPluginEntries() {
	throw new UnsupportedOperationException();
	}

	/**
	* Returns the number of plug-ins installed on this site
	*
	* @see ISite#getPluginEntryCount()
	* @since 2.0
	*/
	public int getPluginEntryCount() {
	throw new UnsupportedOperationException();
	}

	/**
	* Returns an array of entries corresponding to plug-ins that are
	* installed on this site and are referenced only by the specified
	* feature.
	*
	* @see ISite#getPluginEntriesOnlyReferencedBy(IFeature) *
	* @since 2.0
	*/
	public IPluginEntry[] getPluginEntriesOnlyReferencedBy(IFeature feature) throws CoreException {

	IPluginEntry[] pluginsToRemove = new IPluginEntry[0];
	if (feature == null)
	return pluginsToRemove;

	// get the plugins from the feature
	IPluginEntry[] entries = feature.getPluginEntries();
	if (entries != null) {
	// get all the other plugins from all the other features
	Set allPluginID = new HashSet();
	ISiteFeatureReference[] features = getFeatureReferences();
	if (features != null) {
	for (int indexFeatures = 0; indexFeatures < features.length; indexFeatures++) {
	IFeature featureToCompare = null;
	try {
	featureToCompare = features[indexFeatures].getFeature(null);
	} catch (CoreException e) {
	UpdateCore.warn(null, e);
	}
	if (!feature.equals(featureToCompare)) {
	IPluginEntry[] pluginEntries = features[indexFeatures].getFeature(null).getPluginEntries();
	if (pluginEntries != null) {
	for (int indexEntries = 0; indexEntries < pluginEntries.length; indexEntries++) {
	allPluginID.add(pluginEntries[indexEntries].getVersionedIdentifier());
	}
	}
	}
	}
	}

	// create the delta with the plugins that may be still used by other configured or unconfigured feature
	List plugins = new ArrayList();
	for (int indexPlugins = 0; indexPlugins < entries.length; indexPlugins++) {
	if (!allPluginID.contains(entries[indexPlugins].getVersionedIdentifier())) {
	plugins.add(entries[indexPlugins]);
	}
	}

	// move List into Array
	if (!plugins.isEmpty()) {
	pluginsToRemove = new IPluginEntry[plugins.size()];
	plugins.toArray(pluginsToRemove);
	}
	}

	return pluginsToRemove;
	}

	/**
	* Adds a new plug-in entry to this site.
	* This implementation always throws UnsupportedOperationException
	* because this implementation does not support the install action.
	*
	* @see ISite#addPluginEntry(IPluginEntry)
	* @exception java.lang.UnsupportedOperationException
	* @since 2.0
	*/
	public void addPluginEntry(IPluginEntry pluginEntry) {
	throw new UnsupportedOperationException();
	}

	/**
	* Get download size for the specified feature on this site.
	* This implementation always throws UnsupportedOperationException
	* because this implementation does not support the install action.
	*
	* @see ISite#getDownloadSizeFor(IFeature)
	* @exception java.lang.UnsupportedOperationException
	* @since 2.0
	*/
	public long getDownloadSizeFor(IFeature feature) {
	throw new UnsupportedOperationException();
	}

	/**
	* Get install size for the specified feature on this site.
	* This implementation always throws UnsupportedOperationException
	* because this implementation does not support the install action.
	*
	* @see ISite#getInstallSizeFor(IFeature)
	* @exception java.lang.UnsupportedOperationException
	* @since 2.0
	*/
	public long getInstallSizeFor(IFeature feature) {
	throw new UnsupportedOperationException();
	}

	/**
	* Install the specified feature and all optional features on this site.
	* This implementation always throws UnsupportedOperationException
	* because this implementation does not support the install action.
	*
	* @see ISite#install(IFeature, IVerificationListener, IProgressMonitor)
	* @exception InstallAbortedException when the user cancels the install
	* @exception CoreException
	* @exception java.lang.UnsupportedOperationException
	* @since 2.0
	*/
	public IFeatureReference install(IFeature sourceFeature, IVerificationListener verificationListener, IProgressMonitor progress) throws InstallAbortedException, CoreException {
	throw new UnsupportedOperationException();
	}

	/**
	* Install the specified feature and listed optional features on this site.
	* This implementation always throws UnsupportedOperationException
	* because this implementation does not support the install action.
	*
	* @see ISite#install(IFeature, IVerificationListener, IProgressMonitor)
	* @exception InstallAbortedException when the user cancels the install
	* @exception CoreException
	* @exception java.lang.UnsupportedOperationException
	* @since 2.0
	*/
	public IFeatureReference install(IFeature sourceFeature, IFeatureReference[] optionalFeatures, IVerificationListener verificationListener, IProgressMonitor progress) throws InstallAbortedException, CoreException {
	throw new UnsupportedOperationException();
	}

	/**
	* Install the specified feature on this site using the content consumer as
	* a context to install the feature in.
	* This implementation always throws UnsupportedOperationException
	* because this implementation does not support the install action.
	*
	* @param sourceFeature feature to install
	* @param parentContentConsumer content consumer of the parent feature
	* @param parentVerifier verifier of the parent feature
	* @param verificationListener install verification listener
	* @param progress install monitor, can be <code>null</code>
	* @exception InstallAbortedException when the user cancels the install
	* @exception CoreException
	* @exception java.lang.UnsupportedOperationException
	* @since 2.0
	*/
	public IFeatureReference install(IFeature sourceFeature, IFeatureReference[] optionalFeatures, IFeatureContentConsumer parentContentConsumer, IVerifier parentVerifier, IVerificationListener verificationListener, IProgressMonitor progress)
	throws CoreException {
	throw new UnsupportedOperationException();
	}

	/**
	* Remove (uninstall) the specified feature from this site.
	* This implementation always throws UnsupportedOperationException
	* because this implementation does not support the remove action.
	*
	* @see ISite#remove(IFeature, IProgressMonitor)
	* @exception java.lang.UnsupportedOperationException
	* @since 2.0
	*/
	public void remove(IFeature feature, IProgressMonitor progress) throws CoreException {
	throw new UnsupportedOperationException();
	}

	/**
	* Sets the site content provider.
	*
	* @see ISite#setSiteContentProvider(ISiteContentProvider)
	* @since 2.0
	*/
	public void setSiteContentProvider(ISiteContentProvider siteContentProvider) {
	this.siteContentProvider = siteContentProvider;
	}
	/**
	* @see ISite#getCurrentConfiguredSite()
	*/
	public IConfiguredSite getCurrentConfiguredSite() {
	return (IConfiguredSite) getConfiguredSiteModel();
	}

	/**
	* @see org.eclipse.update.core.ISite#createFeature(String, URL)
	* @deprecated
	*/
	public IFeature createFeature(String type, URL url) throws CoreException {
	return createFeature(type,url,null);
	}

	/**
	* @see org.eclipse.update.core.ISite#createFeature(String, URL,
	* IProgressMonitor)
	*/
	public IFeature createFeature(String type, URL url, IProgressMonitor monitor) throws CoreException {

	if(url == null) {
	UpdateCore.warn("The feature URL passed is null");
	return null;
	}

	// First check the cache
	URLKey key = new URLKey(url);
	IFeature feature = (IFeature) featureCache.get(key);
	if (feature != null) return feature;

	// Create a new one
	if (type == null \|\| type.equals("")) { //$NON-NLS-1$
	// ask the Site for the default type
	type = getDefaultPackagedFeatureType();
	}

	IFeatureFactory factory = FeatureTypeFactory.getInstance().getFactory(type);
	feature = factory.createFeature(url, this, monitor);
	if (feature != null) {
	// Add the feature to the cache
	featureCache.put(key, feature);
	}
	return feature;
	}

	protected void removeFeatureFromCache(URL featureURL) {
	URLKey key = new URLKey(featureURL);
	featureCache.remove(key);
	}

	/**
	* Return an array of mirror update sites.
	*
	* @return an array of mirror update sites
	* @since 2.0
	*/
	public IURLEntry[] getMirrorSiteEntries() {
	URLEntryModel[] result = getMirrorSiteEntryModels();
	if (result.length == 0)
	return new IURLEntry[0];
	else
	return (IURLEntry[]) result;
	}
	}