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

 package org.eclipse.update.internal.core;
 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */
 import java.io.*;
 import java.net.URL;
 import java.util.*;

 import org.eclipse.core.boot.BootLoader2;
 import org.eclipse.core.boot.IPlatformConfiguration;
 import org.eclipse.core.runtime.*;
 import org.eclipse.update.core.*;
 import org.xml.sax.SAXException;

 public class InstallConfiguration implements IInstallConfiguration, IWritable {

 	private ListenersList listeners = new ListenersList();
 	private boolean isCurrent;
 	private URL location;
 	private Date date;
 	private String label;
 	private List activities;
 	private List configurationSites;
 	/*
 	 * default constructor. Create
 	 */
 	public InstallConfiguration(URL newLocation, String label) throws CoreException {
 		this.location = newLocation;
 		this.label = label;
 		this.isCurrent = false;
 		initialize();
 	}

 	/*
 	 * copy constructor
 	 */
 	public InstallConfiguration(IInstallConfiguration config,URL newLocation, String label) {
 		this.location = newLocation;
 		this.label = label;
 		// do not copy list of listeners nor activities
 		if (config!=null){
 			configurationSites = new ArrayList();
 			configurationSites.addAll(Arrays.asList(config.getConfigurationSites()));
 			/**featuresConfigured = new ArrayList();
 			featuresConfigured.addAll(Arrays.asList(config.getConfiguredFeatures()));
 			featuresUnconfigured = new ArrayList();
 			featuresUnconfigured.addAll(Arrays.asList(config.getUnconfiguredFeatures()));*/
 		}
 		date = new Date();
 		this.isCurrent = false;
 	}

 	/**
 	 * initialize the configurations from the persistent model.
 	 */
 	private void initialize() throws CoreException {

 		try {
 			//URL configXml = UpdateManagerUtils.getURL(location, SITE_LOCAL_FILE, null);
 			InstallConfigurationParser parser = new InstallConfigurationParser(location.openStream(), this);

 		}  catch (FileNotFoundException exception) {
 			// file doesn't exist, ok, log it and continue
 			// log no config
 			if (UpdateManagerPlugin.DEBUG && UpdateManagerPlugin.DEBUG_SHOW_WARNINGS) {
 				UpdateManagerPlugin.getPlugin().debug(location.toExternalForm() + " does not exist, the local site is not in synch with the filesystem and is pointing to a file taht doesn;t exist.");
 			}
 		} catch (SAXException exception) {
 			String id = UpdateManagerPlugin.getPlugin().getDescriptor().getUniqueIdentifier();
 			IStatus status = new Status(IStatus.ERROR, id, IStatus.OK, "Error during parsing of the install config XML:" + location.toExternalForm(), exception);
 			throw new CoreException(status);
 		} catch (IOException exception) {
 			String id = UpdateManagerPlugin.getPlugin().getDescriptor().getUniqueIdentifier();
 			IStatus status = new Status(IStatus.ERROR, id, IStatus.OK, "Error during file access :" , exception);
 			throw new CoreException(status);
 		}

 	}


 	/*
 	 * @see IInstallConfiguration#getConfigurationSites()
 	 */
 	public IConfigurationSite[] getConfigurationSites() {
 		IConfigurationSite[] sites = new IConfigurationSite[0];
 		if (configurationSites != null && !configurationSites.isEmpty()) {
 			sites = new IConfigurationSite[configurationSites.size()];
 			configurationSites.toArray(sites);
 		}
 		return sites;
 	}


 	/*
 	 * @see IInstallConfiguration#addConfigurationSite(IConfigurationSite)
 	 */
 	public void addConfigurationSite(IConfigurationSite site) {
 		if (!isCurrent)
 			return;

 		//Start UOW ?
 		ConfigurationActivity activity = new ConfigurationActivity(IActivity.ACTION_SITE_INSTALL);
 		activity.setLabel(site.getSite().getURL().toExternalForm());
 		activity.setDate(new Date());
 		addConfigSite(site);

 		// notify listeners
 		Object[] configurationListeners = listeners.getListeners();
 		for (int i = 0; i < configurationListeners.length; i++) {
 			((IInstallConfigurationChangedListener) configurationListeners[i]).installSiteAdded(site);
 		}

 		// everything done ok
 		activity.setStatus(IActivity.STATUS_OK);
 		this.addActivity(activity);
 	}

 	/**
 	 * Adds the configuration to teh list
 	 * is called when adding a Site or parsing the XML file
 	 * in this case we do not want to create a new activity, so we do not want t call
 	 * addConfigurationSite()
 	 */
 	public void addConfigSite(IConfigurationSite site) {
 		if (configurationSites == null) {
 			configurationSites = new ArrayList(0);
 		}
 		configurationSites.add(site);
 	}

 	/*
 	 * @see IInstallConfiguration#removeConfigurationSite(IConfigurationSite)
 	 */
 	public void removeConfigurationSite(IConfigurationSite site) {
 		if (!isCurrent)
 			return;
 		//FIXME: remove should make sure we synchronize
 		if (configurationSites != null) {
 			configurationSites.remove(site);

 			// notify listeners
 			Object[] configurationListeners = listeners.getListeners();
 			for (int i = 0; i < configurationListeners.length; i++) {
 				((IInstallConfigurationChangedListener) configurationListeners[i]).installSiteRemoved(site);
 			}
 		}
 	}

 	/*
 	 * @see IInstallConfiguration#isCurrent()
 	 */
 	public boolean isCurrent() {
 		return isCurrent;
 	}


 	/*
 	 *  @see IInstallConfiguration#setCurrent(boolean)
 	 */
 	public void setCurrent(boolean isCurrent) {
 		this.isCurrent = isCurrent;
 	}

 	/*
 	 * @see IInstallConfiguration#addInstallConfigurationChangedListener(IInstallConfigurationChangedListener)
 	 */
 	public void addInstallConfigurationChangedListener(IInstallConfigurationChangedListener listener) {
 		synchronized (listeners) {
 			listeners.add(listener);
 		}
 	}

 	/*
 	 * @see IInstallConfiguration#removeInstallConfigurationChangedListener(IInstallConfigurationChangedListener)
 	 */
 	public void removeInstallConfigurationChangedListener(IInstallConfigurationChangedListener listener) {
 		synchronized (listeners) {
 			listeners.remove(listener);
 		}
 	}

 	/*
 	 * @see IInstallConfiguration#export(File)
 	 */
 	public void export(File exportFile) throws CoreException{
 		try {
 				PrintWriter fileWriter = new PrintWriter(new FileOutputStream(exportFile));
 				Writer writer = new Writer();
 				writer.writeSite(this, fileWriter);
 				fileWriter.close();
 			} catch (FileNotFoundException e) {
 				String id = UpdateManagerPlugin.getPlugin().getDescriptor().getUniqueIdentifier();
 				IStatus status = new Status(IStatus.ERROR, id, IStatus.OK, "Cannot save configration into " + exportFile.getAbsolutePath(), e);
 				throw new CoreException(status);
 			}
 	}

 	/*
 	 * @see IInstallConfiguration#getActivities()
 	 */
 	public IActivity[] getActivities() {
 		IActivity[] result = new IActivity[0];
 		if (activities!=null && !activities.isEmpty()){
 			result = new IActivity[activities.size()];
 			activities.toArray(result);
 		}
 		return result;
 	}


 	/**
 	 * Adds an activity
 	 */
 	public void addActivity(IActivity activity) {
 		if (activities==null) activities = new ArrayList(0);
 		activities.add(activity);
 	}

 	/*
 	 * @see IInstallConfiguration#getCreationDate()
 	 */
 	public Date getCreationDate() {
 		return date;
 	}

 	/**
 	 * Sets the date.
 	 * @param date The date to set
 	 */
 	public void setCreationDate(Date date) {
 		this.date = date;
 	}

 	/*
 	 * @see IInstallConfiguration#getURL()
 	 */
 	public URL getURL() {
 		return location;
 	}

 	/**
 	 * Sets the URL.
 	 * @param location The URL to set
 	 */
 	public void setURL(URL location) {
 		this.location = location;
 	}

 	/*
 	 * @see IInstallConfiguration#getLabel()
 	 */
 	public String getLabel() {
 		return label;
 	}

 	/**
 	 * Sets the label.
 	 * @param label The label to set
 	 */
 	public void setLabel(String label) {
 		this.label = label;
 	}

 	/**
 	 * Saves the configuration into its URL/location
 	 */
 	public void save() throws CoreException {

 		// save the configuration
 		if (location.getProtocol().equalsIgnoreCase("file")) {
 			// the location points to a file
 			File file = new File(location.getFile());
 			export(file);
 		}


 		// Write info for the next runtime
 		IPlatformConfiguration runtimeConfiguration = UpdateManagerUtils.getRuntimeConfiguration();
 		Iterator iterConfigurationSites = configurationSites.iterator();
 		while (iterConfigurationSites.hasNext()) {
 			IConfigurationSite element = (IConfigurationSite) iterConfigurationSites.next();
 			ConfigurationPolicy configurationPolicy = (ConfigurationPolicy)element.getConfigurationPolicy();
 			IPlatformConfiguration.ISitePolicy sitePolicy = runtimeConfiguration.createSitePolicy(configurationPolicy.getPolicy(),configurationPolicy.getPlugins());
 			runtimeConfiguration.createSiteEntry(element.getSite().getURL(),sitePolicy);
 			try {
 				runtimeConfiguration.save();
 			} catch (IOException e){
 				String id = UpdateManagerPlugin.getPlugin().getDescriptor().getUniqueIdentifier();
 				IStatus status = new Status(IStatus.ERROR, id, IStatus.OK, "Cannot save Platform Configuration ", e);
 				throw new CoreException(status);
 			}

 		}

 	}


 	/*
 	 * @see IWritable#write(int, PrintWriter)
 	 */
 	public void write(int indent, PrintWriter w) {

 		String gap = "";
 		for (int i = 0; i < indent; i++)
 			gap += " ";
 		String increment = "";
 		for (int i = 0; i < IWritable.INDENT; i++)
 			increment += " ";


 		w.print(gap + "<" + InstallConfigurationParser.CONFIGURATION + " ");
 		w.print("date=\"" + date.getTime() + "\" ");
 		w.println(">");
 		w.println("");

 		// site configurations
 		if (configurationSites!=null){
 		Iterator iter = configurationSites.iterator();
 		while (iter.hasNext()) {
 			ConfigurationSite element = (ConfigurationSite) iter.next();
 			((IWritable)element).write(indent+IWritable.INDENT,w);
 		}
 		}

 		// activities
 		if (activities!=null && !activities.isEmpty()){
 			Iterator iter = activities.iterator();
 			while (iter.hasNext()) {
 				ConfigurationActivity element = (ConfigurationActivity) iter.next();
 				((IWritable)element).write(indent+IWritable.INDENT,w);
 			}
 		}

 		// end
 		w.println(gap+"</"+InstallConfigurationParser.CONFIGURATION+">");


 	}


 	/**
 	 * reverts this configuration to the match the new one
 	 *
 	 * remove any site that are in the current but not in the old state
 	 *
 	 * replace all the config sites of the current state with the old one
 	 *
 	 * for all the sites left in the current state, calculate the revert
 	 *
 	 */
 	public void revertTo(IInstallConfiguration configuration,IProgressMonitor monitor) throws CoreException {

 		IConfigurationSite[] oldConfigSites = configuration.getConfigurationSites();

 		// create a hashtable of the *old* sites
 		Map oldSitesMap = new Hashtable(0);
 		for (int i = 0; i < oldConfigSites.length; i++) {
 			IConfigurationSite element = oldConfigSites[i];
 			oldSitesMap.put(element.getSite().getURL().toExternalForm(),element);
 		}


 		// create list of all the sites that map the *old* sites
 		// we want the intersection between teh old sites and teh current sites
 		if(configurationSites!=null){

 			// for each current site, ask the old site
 			// to calculate the delta
 			Iterator currentSites = configurationSites.iterator();
 			String key = null;
 			while (currentSites.hasNext()) {
 				IConfigurationSite element = (IConfigurationSite) currentSites.next();
 				key = element.getSite().getURL().toExternalForm();
 				IConfigurationSite oldSite = (IConfigurationSite)oldSitesMap.get(key);
 				if (oldSite!=null){
 					((ConfigurationSite)oldSite).deltaWith(element);
 				}

 			}


 			// the new configuration has the exact same sites as the old configuration
 			configurationSites = new ArrayList(0);
 			configurationSites.addAll(oldSitesMap.values());

 		}

 	}

 }
	package org.eclipse.update.internal.core;
	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/
	import java.io.*;
	import java.net.URL;
	import java.util.*;

	import org.eclipse.core.boot.BootLoader2;
	import org.eclipse.core.boot.IPlatformConfiguration;
	import org.eclipse.core.runtime.*;
	import org.eclipse.update.core.*;
	import org.xml.sax.SAXException;

	public class InstallConfiguration implements IInstallConfiguration, IWritable {

	private ListenersList listeners = new ListenersList();
	private boolean isCurrent;
	private URL location;
	private Date date;
	private String label;
	private List activities;
	private List configurationSites;
	/*
	* default constructor. Create
	*/
	public InstallConfiguration(URL newLocation, String label) throws CoreException {
	this.location = newLocation;
	this.label = label;
	this.isCurrent = false;
	initialize();
	}

	/*
	* copy constructor
	*/
	public InstallConfiguration(IInstallConfiguration config,URL newLocation, String label) {
	this.location = newLocation;
	this.label = label;
	// do not copy list of listeners nor activities
	if (config!=null){
	configurationSites = new ArrayList();
	configurationSites.addAll(Arrays.asList(config.getConfigurationSites()));
	/**featuresConfigured = new ArrayList();
	featuresConfigured.addAll(Arrays.asList(config.getConfiguredFeatures()));
	featuresUnconfigured = new ArrayList();
	featuresUnconfigured.addAll(Arrays.asList(config.getUnconfiguredFeatures()));*/
	}
	date = new Date();
	this.isCurrent = false;
	}

	/**
	* initialize the configurations from the persistent model.
	*/
	private void initialize() throws CoreException {

	try {
	//URL configXml = UpdateManagerUtils.getURL(location, SITE_LOCAL_FILE, null);
	InstallConfigurationParser parser = new InstallConfigurationParser(location.openStream(), this);

	} catch (FileNotFoundException exception) {
	// file doesn't exist, ok, log it and continue
	// log no config
	if (UpdateManagerPlugin.DEBUG && UpdateManagerPlugin.DEBUG_SHOW_WARNINGS) {
	UpdateManagerPlugin.getPlugin().debug(location.toExternalForm() + " does not exist, the local site is not in synch with the filesystem and is pointing to a file taht doesn;t exist.");
	}
	} catch (SAXException exception) {
	String id = UpdateManagerPlugin.getPlugin().getDescriptor().getUniqueIdentifier();
	IStatus status = new Status(IStatus.ERROR, id, IStatus.OK, "Error during parsing of the install config XML:" + location.toExternalForm(), exception);
	throw new CoreException(status);
	} catch (IOException exception) {
	String id = UpdateManagerPlugin.getPlugin().getDescriptor().getUniqueIdentifier();
	IStatus status = new Status(IStatus.ERROR, id, IStatus.OK, "Error during file access :" , exception);
	throw new CoreException(status);
	}

	}


	/*
	* @see IInstallConfiguration#getConfigurationSites()
	*/
	public IConfigurationSite[] getConfigurationSites() {
	IConfigurationSite[] sites = new IConfigurationSite[0];
	if (configurationSites != null && !configurationSites.isEmpty()) {
	sites = new IConfigurationSite[configurationSites.size()];
	configurationSites.toArray(sites);
	}
	return sites;
	}


	/*
	* @see IInstallConfiguration#addConfigurationSite(IConfigurationSite)
	*/
	public void addConfigurationSite(IConfigurationSite site) {
	if (!isCurrent)
	return;

	//Start UOW ?
	ConfigurationActivity activity = new ConfigurationActivity(IActivity.ACTION_SITE_INSTALL);
	activity.setLabel(site.getSite().getURL().toExternalForm());
	activity.setDate(new Date());
	addConfigSite(site);

	// notify listeners
	Object[] configurationListeners = listeners.getListeners();
	for (int i = 0; i < configurationListeners.length; i++) {
	((IInstallConfigurationChangedListener) configurationListeners[i]).installSiteAdded(site);
	}

	// everything done ok
	activity.setStatus(IActivity.STATUS_OK);
	this.addActivity(activity);
	}

	/**
	* Adds the configuration to teh list
	* is called when adding a Site or parsing the XML file
	* in this case we do not want to create a new activity, so we do not want t call
	* addConfigurationSite()
	*/
	public void addConfigSite(IConfigurationSite site) {
	if (configurationSites == null) {
	configurationSites = new ArrayList(0);
	}
	configurationSites.add(site);
	}

	/*
	* @see IInstallConfiguration#removeConfigurationSite(IConfigurationSite)
	*/
	public void removeConfigurationSite(IConfigurationSite site) {
	if (!isCurrent)
	return;
	//FIXME: remove should make sure we synchronize
	if (configurationSites != null) {
	configurationSites.remove(site);

	// notify listeners
	Object[] configurationListeners = listeners.getListeners();
	for (int i = 0; i < configurationListeners.length; i++) {
	((IInstallConfigurationChangedListener) configurationListeners[i]).installSiteRemoved(site);
	}
	}
	}

	/*
	* @see IInstallConfiguration#isCurrent()
	*/
	public boolean isCurrent() {
	return isCurrent;
	}


	/*
	* @see IInstallConfiguration#setCurrent(boolean)
	*/
	public void setCurrent(boolean isCurrent) {
	this.isCurrent = isCurrent;
	}

	/*
	* @see IInstallConfiguration#addInstallConfigurationChangedListener(IInstallConfigurationChangedListener)
	*/
	public void addInstallConfigurationChangedListener(IInstallConfigurationChangedListener listener) {
	synchronized (listeners) {
	listeners.add(listener);
	}
	}

	/*
	* @see IInstallConfiguration#removeInstallConfigurationChangedListener(IInstallConfigurationChangedListener)
	*/
	public void removeInstallConfigurationChangedListener(IInstallConfigurationChangedListener listener) {
	synchronized (listeners) {
	listeners.remove(listener);
	}
	}

	/*
	* @see IInstallConfiguration#export(File)
	*/
	public void export(File exportFile) throws CoreException{
	try {
	PrintWriter fileWriter = new PrintWriter(new FileOutputStream(exportFile));
	Writer writer = new Writer();
	writer.writeSite(this, fileWriter);
	fileWriter.close();
	} catch (FileNotFoundException e) {
	String id = UpdateManagerPlugin.getPlugin().getDescriptor().getUniqueIdentifier();
	IStatus status = new Status(IStatus.ERROR, id, IStatus.OK, "Cannot save configration into " + exportFile.getAbsolutePath(), e);
	throw new CoreException(status);
	}
	}

	/*
	* @see IInstallConfiguration#getActivities()
	*/
	public IActivity[] getActivities() {
	IActivity[] result = new IActivity[0];
	if (activities!=null && !activities.isEmpty()){
	result = new IActivity[activities.size()];
	activities.toArray(result);
	}
	return result;
	}


	/**
	* Adds an activity
	*/
	public void addActivity(IActivity activity) {
	if (activities==null) activities = new ArrayList(0);
	activities.add(activity);
	}

	/*
	* @see IInstallConfiguration#getCreationDate()
	*/
	public Date getCreationDate() {
	return date;
	}

	/**
	* Sets the date.
	* @param date The date to set
	*/
	public void setCreationDate(Date date) {
	this.date = date;
	}

	/*
	* @see IInstallConfiguration#getURL()
	*/
	public URL getURL() {
	return location;
	}

	/**
	* Sets the URL.
	* @param location The URL to set
	*/
	public void setURL(URL location) {
	this.location = location;
	}

	/*
	* @see IInstallConfiguration#getLabel()
	*/
	public String getLabel() {
	return label;
	}

	/**
	* Sets the label.
	* @param label The label to set
	*/
	public void setLabel(String label) {
	this.label = label;
	}

	/**
	* Saves the configuration into its URL/location
	*/
	public void save() throws CoreException {

	// save the configuration
	if (location.getProtocol().equalsIgnoreCase("file")) {
	// the location points to a file
	File file = new File(location.getFile());
	export(file);
	}


	// Write info for the next runtime
	IPlatformConfiguration runtimeConfiguration = UpdateManagerUtils.getRuntimeConfiguration();
	Iterator iterConfigurationSites = configurationSites.iterator();
	while (iterConfigurationSites.hasNext()) {
	IConfigurationSite element = (IConfigurationSite) iterConfigurationSites.next();
	ConfigurationPolicy configurationPolicy = (ConfigurationPolicy)element.getConfigurationPolicy();
	IPlatformConfiguration.ISitePolicy sitePolicy = runtimeConfiguration.createSitePolicy(configurationPolicy.getPolicy(),configurationPolicy.getPlugins());
	runtimeConfiguration.createSiteEntry(element.getSite().getURL(),sitePolicy);
	try {
	runtimeConfiguration.save();
	} catch (IOException e){
	String id = UpdateManagerPlugin.getPlugin().getDescriptor().getUniqueIdentifier();
	IStatus status = new Status(IStatus.ERROR, id, IStatus.OK, "Cannot save Platform Configuration ", e);
	throw new CoreException(status);
	}

	}

	}


	/*
	* @see IWritable#write(int, PrintWriter)
	*/
	public void write(int indent, PrintWriter w) {

	String gap = "";
	for (int i = 0; i < indent; i++)
	gap += " ";
	String increment = "";
	for (int i = 0; i < IWritable.INDENT; i++)
	increment += " ";


	w.print(gap + "<" + InstallConfigurationParser.CONFIGURATION + " ");
	w.print("date=\"" + date.getTime() + "\" ");
	w.println(">");
	w.println("");

	// site configurations
	if (configurationSites!=null){
	Iterator iter = configurationSites.iterator();
	while (iter.hasNext()) {
	ConfigurationSite element = (ConfigurationSite) iter.next();
	((IWritable)element).write(indent+IWritable.INDENT,w);
	}
	}

	// activities
	if (activities!=null && !activities.isEmpty()){
	Iterator iter = activities.iterator();
	while (iter.hasNext()) {
	ConfigurationActivity element = (ConfigurationActivity) iter.next();
	((IWritable)element).write(indent+IWritable.INDENT,w);
	}
	}

	// end
	w.println(gap+"</"+InstallConfigurationParser.CONFIGURATION+">");


	}


	/**
	* reverts this configuration to the match the new one
	*
	* remove any site that are in the current but not in the old state
	*
	* replace all the config sites of the current state with the old one
	*
	* for all the sites left in the current state, calculate the revert
	*
	*/
	public void revertTo(IInstallConfiguration configuration,IProgressMonitor monitor) throws CoreException {

	IConfigurationSite[] oldConfigSites = configuration.getConfigurationSites();

	// create a hashtable of the old sites
	Map oldSitesMap = new Hashtable(0);
	for (int i = 0; i < oldConfigSites.length; i++) {
	IConfigurationSite element = oldConfigSites[i];
	oldSitesMap.put(element.getSite().getURL().toExternalForm(),element);
	}


	// create list of all the sites that map the old sites
	// we want the intersection between teh old sites and teh current sites
	if(configurationSites!=null){

	// for each current site, ask the old site
	// to calculate the delta
	Iterator currentSites = configurationSites.iterator();
	String key = null;
	while (currentSites.hasNext()) {
	IConfigurationSite element = (IConfigurationSite) currentSites.next();
	key = element.getSite().getURL().toExternalForm();
	IConfigurationSite oldSite = (IConfigurationSite)oldSitesMap.get(key);
	if (oldSite!=null){
	((ConfigurationSite)oldSite).deltaWith(element);
	}

	}


	// the new configuration has the exact same sites as the old configuration
	configurationSites = new ArrayList(0);
	configurationSites.addAll(oldSitesMap.values());

	}

	}

	}