ui/org.eclipse.pde.core/src/org/eclipse/pde/internal/core/target/ProfileBundleContainer.java - pde/eclipse.pde.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2008, 2020 IBM Corporation and others.
  *
  * This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *     Christoph Läubrich - Bug 568865 - [target] add advanced editing capabilities for custom target platforms
  *******************************************************************************/
 package org.eclipse.pde.internal.core.target;

 import static java.util.Arrays.stream;
 import static java.util.Collections.emptyList;
 import static java.util.stream.Stream.concat;

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.net.URI;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
 import java.util.Objects;
 import java.util.Properties;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.SubMonitor;
 import org.eclipse.core.runtime.URIUtil;
 import org.eclipse.equinox.frameworkadmin.BundleInfo;
 import org.eclipse.osgi.util.NLS;
 import org.eclipse.pde.core.target.ITargetDefinition;
 import org.eclipse.pde.core.target.TargetBundle;
 import org.eclipse.pde.core.target.TargetFeature;
 import org.eclipse.pde.internal.core.P2Utils;
 import org.eclipse.pde.internal.core.PDECore;

 /**
  * A bundle container representing an installed profile.
  *
  * @since 3.5
  */
 public class ProfileBundleContainer extends AbstractBundleContainer {

 	// The following constants are duplicated from org.eclipse.equinox.internal.p2.core.Activator
 	private static final String CONFIG_INI = "config.ini"; //$NON-NLS-1$
 	private static final String PROP_AGENT_DATA_AREA = "eclipse.p2.data.area"; //$NON-NLS-1$
 	private static final String PROP_PROFILE = "eclipse.p2.profile"; //$NON-NLS-1$
 	private static final String PROP_CONFIG_DIR = "osgi.configuration.area"; //$NON-NLS-1$
 	private static final String PROP_USER_DIR = "user.dir"; //$NON-NLS-1$
 	private static final String PROP_USER_HOME = "user.home"; //$NON-NLS-1$
 	private static final String VAR_CONFIG_DIR = "@config.dir"; //$NON-NLS-1$
 	private static final String VAR_USER_DIR = "@user.dir"; //$NON-NLS-1$
 	private static final String VAR_USER_HOME = "@user.home"; //$NON-NLS-1$

 	/**
 	 * Constant describing the type of bundle container
 	 */
 	public static final String TYPE = "Profile"; //$NON-NLS-1$

 	/**
 	 * Path to home/root install location. May contain string variables.
 	 */
 	private final String fHome;

 	/**
 	 * Alternate configuration location or <code>null</code> if default.
 	 * May contain string variables.
 	 */
 	private final String fConfiguration;

 	/**
 	 * Creates a new bundle container for the profile at the specified location.
 	 *
 	 * @param home path in local file system, may contain string variables
 	 * @param configurationLocation alternate configuration location or <code>null</code> for default,
 	 *  may contain string variables
 	 */
 	public ProfileBundleContainer(String home, String configurationLocation) {
 		fHome = home;
 		fConfiguration = configurationLocation;
 	}

 	@Override
 	public String getLocation(boolean resolve) throws CoreException {
 		if (resolve) {
 			return resolveHomeLocation().toOSString();
 		}
 		return fHome;
 	}

 	@Override
 	public String getType() {
 		return TYPE;
 	}

 	/**
 	 * Returns the configuration area for this container if one was specified during creation.
 	 *
 	 * @return string path to configuration location or <code>null</code>
 	 */
 	public String getConfigurationLocation() {
 		return fConfiguration;
 	}

 	@Override
 	protected TargetBundle[] resolveBundles(ITargetDefinition definition, IProgressMonitor monitor) throws CoreException {
 		String home = resolveHomeLocation().toOSString();
 		if (!new File(home).isDirectory()) {
 			throw new CoreException(Status.error(NLS.bind(Messages.ProfileBundleContainer_0, home)));
 		}

 		File configurationArea = getConfigurationArea();
 		if (configurationArea != null) {
 			if (!configurationArea.isDirectory()) {
 				throw new CoreException(Status.error(NLS.bind(Messages.ProfileBundleContainer_2, home)));
 			}
 		}

 		BundleInfo[] infos = P2Utils.readBundles(home, configurationArea);
 		if (infos == null) {
 			if (configurationArea != null) {
 				Collection<TargetBundle> osgiBundles = readBundleInfosFromConfigIni(configurationArea, new File(home));
 				if (!osgiBundles.isEmpty()) {
 					return osgiBundles.toArray(new TargetBundle[0]);
 				}
 			}
 			DirectoryBundleContainer directoryBundleContainer = new DirectoryBundleContainer(home);
 			directoryBundleContainer.resolve(definition, monitor);
 			TargetBundle[] platformBundles = directoryBundleContainer.getBundles();
 			if (platformBundles != null) {
 				return platformBundles;
 			}
 			infos = new BundleInfo[0];
 		}

 		if (monitor.isCanceled()) {
 			return new TargetBundle[0];
 		}

 		BundleInfo[] source = P2Utils.readSourceBundles(home, configurationArea);
 		if (source == null) {
 			source = new BundleInfo[0];
 		}
 		SubMonitor localMonitor = SubMonitor.convert(monitor, Messages.DirectoryBundleContainer_0, infos.length + source.length);

 		return concat(stream(infos), stream(source)).parallel().map(info -> {
 			URI location = info.getLocation();
 			try {
 				if (monitor.isCanceled()) {
 					return null;
 				}
 				return new TargetBundle(URIUtil.toFile(location));
 			} catch (CoreException e) {
 				return new InvalidTargetBundle(new BundleInfo(location), e.getStatus());
 			} finally {
 				localMonitor.split(1);
 			}
 		}).filter(Objects::nonNull).toArray(TargetBundle[]::new);
 	}

 	private Collection<TargetBundle> readBundleInfosFromConfigIni(File configArea, File home) {
 		File configIni = new File(configArea, CONFIG_INI);
 		if (!configIni.isFile()) {
 			return emptyList();
 		}
 		Properties configProps = new Properties();
 		try (FileInputStream fis = new FileInputStream(configIni)) {
 			configProps.load(fis);
 		} catch (IOException e) {
 			PDECore.log(e);
 			return emptyList();
 		}

 		List<File> bundleFiles = parseBundlesFromConfigIni(configProps, home);
 		ArrayList<TargetBundle> bundles = new ArrayList<>();
 		for (File file : bundleFiles) {
 			if (!file.exists()) {
 				continue;
 			}
 			TargetBundle bundle;
 			try {
 				bundle = new TargetBundle(file);
 			} catch (CoreException e) {
 				bundle = new InvalidTargetBundle(new BundleInfo(file.toURI()), e.getStatus());
 			}
 			bundles.add(bundle);
 		}
 		return bundles;
 	}

 	public static List<File> parseBundlesFromConfigIni(Properties configProps, File home) {
 		String osgiBundles = configProps.getProperty("osgi.bundles"); //$NON-NLS-1$
 		if (osgiBundles == null || osgiBundles.isEmpty()) {
 			return emptyList();
 		}

 		ArrayList<File> bundles = new ArrayList<>();
 		File baseDir = null;

 		String osgiFramework = configProps.getProperty("osgi.framework"); //$NON-NLS-1$
 		if (osgiFramework != null) {
 			File frameworkBundle = parseBundleLocation(osgiFramework);
 			if (!frameworkBundle.isAbsolute()) {
 				frameworkBundle = new File(home, frameworkBundle.getPath());
 			}
 			bundles.add(frameworkBundle);
 			baseDir = frameworkBundle.getParentFile();
 		}

 		for (String spec : osgiBundles.split(",")) { //$NON-NLS-1$
 			File location = parseBundleLocation(spec);
 			if (baseDir == null || location.isAbsolute()) {
 				bundles.add(location);
 			} else {
 				bundles.add(new File(baseDir, location.getPath()));
 			}
 		}

 		return bundles;
 	}

 	private static File parseBundleLocation(String spec) {
 		String path = spec.split("@", 2)[0]; //$NON-NLS-1$
 		path = trimPrefix(path, "reference:"); //$NON-NLS-1$
 		path = trimPrefix(path, "file:"); //$NON-NLS-1$
 		return new File(path);
 	}

 	private static String trimPrefix(String string, String prefix) {
 		if (string.startsWith(prefix)) {
 			return string.substring(prefix.length());
 		}

 		return string;
 	}

 	@Override
 	protected TargetFeature[] resolveFeatures(ITargetDefinition definition, IProgressMonitor monitor) throws CoreException {
 		if (definition instanceof TargetDefinition) {
 			return ((TargetDefinition) definition).resolveFeatures(getLocation(false), monitor);
 		}
 		return new TargetFeature[0];
 	}

 	/**
 	 * Returns the home location with all variables resolved as a path.
 	 *
 	 * @return resolved home location
 	 * @throws CoreException
 	 */
 	private IPath resolveHomeLocation() throws CoreException {
 		return new Path(resolveVariables(fHome));
 	}

 	/**
 	 * Returns a URL to the configuration area associated with this profile or <code>null</code>
 	 * if none.
 	 *
 	 * @return configuration area URL or <code>null</code>
 	 * @throws CoreException if unable to generate a URL or the user specified location does not exist
 	 */
 	private File getConfigurationArea() throws CoreException {
 		IPath home = resolveHomeLocation();
 		IPath configuration = null;
 		if (fConfiguration == null) {
 			configuration = home.append("configuration"); //$NON-NLS-1$
 		} else {
 			configuration = new Path(resolveVariables(fConfiguration));
 		}
 		File file = configuration.toFile();
 		if (file.exists()) {
 			return file;
 		} else if (fConfiguration != null) {
 			// If the user specified config area does not exist throw an error
 			throw new CoreException(
 					Status.error(NLS.bind(Messages.ProfileBundleContainer_2, configuration.toOSString())));
 		}
 		return null;
 	}

 	@Override
 	public boolean equals(Object o) {
 		if (o instanceof ProfileBundleContainer) {
 			ProfileBundleContainer pbc = (ProfileBundleContainer) o;
 			return fHome.equals(pbc.fHome) && isNullOrEqual(pbc.fConfiguration, fConfiguration);
 		}
 		return false;
 	}

 	@Override
 	public int hashCode() {
 		int hash = fHome.hashCode();
 		if (fConfiguration != null) {
 			hash += fConfiguration.hashCode();
 		}
 		return hash;
 	}

 	/**
 	 * Returns the location of the profile file that describes the installation this container represents or <code>null</code>
 	 * if no profile file could be determined.  This method checks the configuration file for a p2 data area entry and profile name
 	 * to determine where the profile is located.
 	 * <p>
 	 * Note that when self hosting, the returned profile location will not have all running plug-ins installed unless the launch has generated
 	 * a complete profile.
 	 * </p>
 	 *
 	 * @return the profile file or <code>null</code>
 	 */
 	public File getProfileFileLocation() throws CoreException {
 		// Get the configuration location
 		String home = resolveHomeLocation().toOSString();
 		if (!new File(home).isDirectory()) {
 			throw new CoreException(Status.error(NLS.bind(Messages.ProfileBundleContainer_0, home)));
 		}
 		File configArea = getConfigurationArea();
 		if (configArea == null) {
 			configArea = new File(home);
 		}
 		if (!configArea.isDirectory()) {
 			throw new CoreException(Status.error(NLS.bind(Messages.ProfileBundleContainer_2, configArea)));
 		}

 		// Location of the profile
 		File p2DataArea = null;
 		String profileName = null;

 		// Load the config.ini to try and find the backing profile
 		File configIni = new File(configArea, CONFIG_INI);
 		if (configIni.isFile()) {
 			// Read config.ini
 			Properties configProps = new Properties();
 			try (FileInputStream fis = new FileInputStream(configIni)) {
 				configProps.load(fis);
 			} catch (IOException e) {
 				PDECore.log(e);
 			}

 			String p2Area = configProps.getProperty(PROP_AGENT_DATA_AREA);
 			if (p2Area != null) {
 				if (p2Area.startsWith(VAR_USER_HOME)) {
 					String base = substituteVar(configProps, p2Area, VAR_USER_HOME, PROP_USER_HOME, configArea);
 					p2Area = new Path(base).toFile().getAbsolutePath();
 				} else if (p2Area.startsWith(VAR_USER_DIR)) {
 					String base = substituteVar(configProps, p2Area, VAR_USER_DIR, PROP_USER_DIR, configArea);
 					p2Area = new Path(base).toFile().getAbsolutePath();
 				} else if (p2Area.startsWith(VAR_CONFIG_DIR)) {
 					String base = substituteVar(configProps, p2Area, VAR_CONFIG_DIR, PROP_CONFIG_DIR, configArea);
 					p2Area = new Path(base).toFile().getAbsolutePath();
 				}
 				p2DataArea = new File(p2Area);
 			}

 			profileName = configProps.getProperty(PROP_PROFILE);
 		}

 		if (p2DataArea == null || !p2DataArea.isDirectory()) {
 			p2DataArea = new File(configArea, "p2"); //$NON-NLS-1$
 		}

 		if (profileName == null || profileName.length() == 0) {
 			profileName = "SDKProfile"; //$NON-NLS-1$
 		}

 		@SuppressWarnings("restriction")
 		File profile = new Path(p2DataArea.getAbsolutePath())
 				.append(org.eclipse.equinox.internal.p2.engine.EngineActivator.ID).append("profileRegistry") //$NON-NLS-1$
 				.append(profileName + ".profile").toFile(); //$NON-NLS-1$

 		if (profile.exists()) {
 			return profile;
 		}

 		return null;
 	}

 	/**
 	 * Replaces a variable in config.ini
 	 * @param props properties containing entries from the
 	 * @param source the string to replace the var in
 	 * @param var the variable to replace
 	 * @param prop the property to lookup for a replacement value
 	 * @param defaultValue value to use if the property can't be found
 	 * @return source string with the variable replaced with the proper value
 	 */
 	private String substituteVar(Properties props, String source, String var, String prop, File defaultValue) {
 		String value = props.getProperty(prop);
 		if (value == null) {
 			value = defaultValue.getAbsolutePath();
 		}
 		return value + source.substring(var.length());
 	}

 	private boolean isNullOrEqual(Object o1, Object o2) {
 		if (o1 == null) {
 			return o2 == null;
 		}
 		if (o2 == null) {
 			return false;
 		}
 		return o1.equals(o2);
 	}

 	@Override
 	public String toString() {
 		return new StringBuilder("Installation ").append(fHome).append(' ') //$NON-NLS-1$
 				.append(fConfiguration == null ? "Default Configuration" : fConfiguration).toString(); //$NON-NLS-1$
 	}

 	public void reload() {
 		clearResolutionStatus();
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2008, 2020 IBM Corporation and others.
	*
	* This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	* Christoph Läubrich - Bug 568865 - [target] add advanced editing capabilities for custom target platforms
	*******************************************************************************/
	package org.eclipse.pde.internal.core.target;

	import static java.util.Arrays.stream;
	import static java.util.Collections.emptyList;
	import static java.util.stream.Stream.concat;

	import java.io.File;
	import java.io.FileInputStream;
	import java.io.IOException;
	import java.net.URI;
	import java.util.ArrayList;
	import java.util.Collection;
	import java.util.List;
	import java.util.Objects;
	import java.util.Properties;
	import org.eclipse.core.runtime.CoreException;
	import org.eclipse.core.runtime.IPath;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.core.runtime.SubMonitor;
	import org.eclipse.core.runtime.URIUtil;
	import org.eclipse.equinox.frameworkadmin.BundleInfo;
	import org.eclipse.osgi.util.NLS;
	import org.eclipse.pde.core.target.ITargetDefinition;
	import org.eclipse.pde.core.target.TargetBundle;
	import org.eclipse.pde.core.target.TargetFeature;
	import org.eclipse.pde.internal.core.P2Utils;
	import org.eclipse.pde.internal.core.PDECore;

	/**
	* A bundle container representing an installed profile.
	*
	* @since 3.5
	*/
	public class ProfileBundleContainer extends AbstractBundleContainer {

	// The following constants are duplicated from org.eclipse.equinox.internal.p2.core.Activator
	private static final String CONFIG_INI = "config.ini"; //$NON-NLS-1$
	private static final String PROP_AGENT_DATA_AREA = "eclipse.p2.data.area"; //$NON-NLS-1$
	private static final String PROP_PROFILE = "eclipse.p2.profile"; //$NON-NLS-1$
	private static final String PROP_CONFIG_DIR = "osgi.configuration.area"; //$NON-NLS-1$
	private static final String PROP_USER_DIR = "user.dir"; //$NON-NLS-1$
	private static final String PROP_USER_HOME = "user.home"; //$NON-NLS-1$
	private static final String VAR_CONFIG_DIR = "@config.dir"; //$NON-NLS-1$
	private static final String VAR_USER_DIR = "@user.dir"; //$NON-NLS-1$
	private static final String VAR_USER_HOME = "@user.home"; //$NON-NLS-1$

	/**
	* Constant describing the type of bundle container
	*/
	public static final String TYPE = "Profile"; //$NON-NLS-1$

	/**
	* Path to home/root install location. May contain string variables.
	*/
	private final String fHome;

	/**
	* Alternate configuration location or <code>null</code> if default.
	* May contain string variables.
	*/
	private final String fConfiguration;

	/**
	* Creates a new bundle container for the profile at the specified location.
	*
	* @param home path in local file system, may contain string variables
	* @param configurationLocation alternate configuration location or <code>null</code> for default,
	* may contain string variables
	*/
	public ProfileBundleContainer(String home, String configurationLocation) {
	fHome = home;
	fConfiguration = configurationLocation;
	}

	@Override
	public String getLocation(boolean resolve) throws CoreException {
	if (resolve) {
	return resolveHomeLocation().toOSString();
	}
	return fHome;
	}

	@Override
	public String getType() {
	return TYPE;
	}

	/**
	* Returns the configuration area for this container if one was specified during creation.
	*
	* @return string path to configuration location or <code>null</code>
	*/
	public String getConfigurationLocation() {
	return fConfiguration;
	}

	@Override
	protected TargetBundle[] resolveBundles(ITargetDefinition definition, IProgressMonitor monitor) throws CoreException {
	String home = resolveHomeLocation().toOSString();
	if (!new File(home).isDirectory()) {
	throw new CoreException(Status.error(NLS.bind(Messages.ProfileBundleContainer_0, home)));
	}

	File configurationArea = getConfigurationArea();
	if (configurationArea != null) {
	if (!configurationArea.isDirectory()) {
	throw new CoreException(Status.error(NLS.bind(Messages.ProfileBundleContainer_2, home)));
	}
	}

	BundleInfo[] infos = P2Utils.readBundles(home, configurationArea);
	if (infos == null) {
	if (configurationArea != null) {
	Collection<TargetBundle> osgiBundles = readBundleInfosFromConfigIni(configurationArea, new File(home));
	if (!osgiBundles.isEmpty()) {
	return osgiBundles.toArray(new TargetBundle[0]);
	}
	}
	DirectoryBundleContainer directoryBundleContainer = new DirectoryBundleContainer(home);
	directoryBundleContainer.resolve(definition, monitor);
	TargetBundle[] platformBundles = directoryBundleContainer.getBundles();
	if (platformBundles != null) {
	return platformBundles;
	}
	infos = new BundleInfo[0];
	}

	if (monitor.isCanceled()) {
	return new TargetBundle[0];
	}

	BundleInfo[] source = P2Utils.readSourceBundles(home, configurationArea);
	if (source == null) {
	source = new BundleInfo[0];
	}
	SubMonitor localMonitor = SubMonitor.convert(monitor, Messages.DirectoryBundleContainer_0, infos.length + source.length);

	return concat(stream(infos), stream(source)).parallel().map(info -> {
	URI location = info.getLocation();
	try {
	if (monitor.isCanceled()) {
	return null;
	}
	return new TargetBundle(URIUtil.toFile(location));
	} catch (CoreException e) {
	return new InvalidTargetBundle(new BundleInfo(location), e.getStatus());
	} finally {
	localMonitor.split(1);
	}
	}).filter(Objects::nonNull).toArray(TargetBundle[]::new);
	}

	private Collection<TargetBundle> readBundleInfosFromConfigIni(File configArea, File home) {
	File configIni = new File(configArea, CONFIG_INI);
	if (!configIni.isFile()) {
	return emptyList();
	}
	Properties configProps = new Properties();
	try (FileInputStream fis = new FileInputStream(configIni)) {
	configProps.load(fis);
	} catch (IOException e) {
	PDECore.log(e);
	return emptyList();
	}

	List<File> bundleFiles = parseBundlesFromConfigIni(configProps, home);
	ArrayList<TargetBundle> bundles = new ArrayList<>();
	for (File file : bundleFiles) {
	if (!file.exists()) {
	continue;
	}
	TargetBundle bundle;
	try {
	bundle = new TargetBundle(file);
	} catch (CoreException e) {
	bundle = new InvalidTargetBundle(new BundleInfo(file.toURI()), e.getStatus());
	}
	bundles.add(bundle);
	}
	return bundles;
	}

	public static List<File> parseBundlesFromConfigIni(Properties configProps, File home) {
	String osgiBundles = configProps.getProperty("osgi.bundles"); //$NON-NLS-1$
	if (osgiBundles == null \|\| osgiBundles.isEmpty()) {
	return emptyList();
	}

	ArrayList<File> bundles = new ArrayList<>();
	File baseDir = null;

	String osgiFramework = configProps.getProperty("osgi.framework"); //$NON-NLS-1$
	if (osgiFramework != null) {
	File frameworkBundle = parseBundleLocation(osgiFramework);
	if (!frameworkBundle.isAbsolute()) {
	frameworkBundle = new File(home, frameworkBundle.getPath());
	}
	bundles.add(frameworkBundle);
	baseDir = frameworkBundle.getParentFile();
	}

	for (String spec : osgiBundles.split(",")) { //$NON-NLS-1$
	File location = parseBundleLocation(spec);
	if (baseDir == null \|\| location.isAbsolute()) {
	bundles.add(location);
	} else {
	bundles.add(new File(baseDir, location.getPath()));
	}
	}

	return bundles;
	}

	private static File parseBundleLocation(String spec) {
	String path = spec.split("@", 2)[0]; //$NON-NLS-1$
	path = trimPrefix(path, "reference:"); //$NON-NLS-1$
	path = trimPrefix(path, "file:"); //$NON-NLS-1$
	return new File(path);
	}

	private static String trimPrefix(String string, String prefix) {
	if (string.startsWith(prefix)) {
	return string.substring(prefix.length());
	}

	return string;
	}

	@Override
	protected TargetFeature[] resolveFeatures(ITargetDefinition definition, IProgressMonitor monitor) throws CoreException {
	if (definition instanceof TargetDefinition) {
	return ((TargetDefinition) definition).resolveFeatures(getLocation(false), monitor);
	}
	return new TargetFeature[0];
	}

	/**
	* Returns the home location with all variables resolved as a path.
	*
	* @return resolved home location
	* @throws CoreException
	*/
	private IPath resolveHomeLocation() throws CoreException {
	return new Path(resolveVariables(fHome));
	}

	/**
	* Returns a URL to the configuration area associated with this profile or <code>null</code>
	* if none.
	*
	* @return configuration area URL or <code>null</code>
	* @throws CoreException if unable to generate a URL or the user specified location does not exist
	*/
	private File getConfigurationArea() throws CoreException {
	IPath home = resolveHomeLocation();
	IPath configuration = null;
	if (fConfiguration == null) {
	configuration = home.append("configuration"); //$NON-NLS-1$
	} else {
	configuration = new Path(resolveVariables(fConfiguration));
	}
	File file = configuration.toFile();
	if (file.exists()) {
	return file;
	} else if (fConfiguration != null) {
	// If the user specified config area does not exist throw an error
	throw new CoreException(
	Status.error(NLS.bind(Messages.ProfileBundleContainer_2, configuration.toOSString())));
	}
	return null;
	}

	@Override
	public boolean equals(Object o) {
	if (o instanceof ProfileBundleContainer) {
	ProfileBundleContainer pbc = (ProfileBundleContainer) o;
	return fHome.equals(pbc.fHome) && isNullOrEqual(pbc.fConfiguration, fConfiguration);
	}
	return false;
	}

	@Override
	public int hashCode() {
	int hash = fHome.hashCode();
	if (fConfiguration != null) {
	hash += fConfiguration.hashCode();
	}
	return hash;
	}

	/**
	* Returns the location of the profile file that describes the installation this container represents or <code>null</code>
	* if no profile file could be determined. This method checks the configuration file for a p2 data area entry and profile name
	* to determine where the profile is located.
	* <p>
	* Note that when self hosting, the returned profile location will not have all running plug-ins installed unless the launch has generated
	* a complete profile.
	* </p>
	*
	* @return the profile file or <code>null</code>
	*/
	public File getProfileFileLocation() throws CoreException {
	// Get the configuration location
	String home = resolveHomeLocation().toOSString();
	if (!new File(home).isDirectory()) {
	throw new CoreException(Status.error(NLS.bind(Messages.ProfileBundleContainer_0, home)));
	}
	File configArea = getConfigurationArea();
	if (configArea == null) {
	configArea = new File(home);
	}
	if (!configArea.isDirectory()) {
	throw new CoreException(Status.error(NLS.bind(Messages.ProfileBundleContainer_2, configArea)));
	}

	// Location of the profile
	File p2DataArea = null;
	String profileName = null;

	// Load the config.ini to try and find the backing profile
	File configIni = new File(configArea, CONFIG_INI);
	if (configIni.isFile()) {
	// Read config.ini
	Properties configProps = new Properties();
	try (FileInputStream fis = new FileInputStream(configIni)) {
	configProps.load(fis);
	} catch (IOException e) {
	PDECore.log(e);
	}

	String p2Area = configProps.getProperty(PROP_AGENT_DATA_AREA);
	if (p2Area != null) {
	if (p2Area.startsWith(VAR_USER_HOME)) {
	String base = substituteVar(configProps, p2Area, VAR_USER_HOME, PROP_USER_HOME, configArea);
	p2Area = new Path(base).toFile().getAbsolutePath();
	} else if (p2Area.startsWith(VAR_USER_DIR)) {
	String base = substituteVar(configProps, p2Area, VAR_USER_DIR, PROP_USER_DIR, configArea);
	p2Area = new Path(base).toFile().getAbsolutePath();
	} else if (p2Area.startsWith(VAR_CONFIG_DIR)) {
	String base = substituteVar(configProps, p2Area, VAR_CONFIG_DIR, PROP_CONFIG_DIR, configArea);
	p2Area = new Path(base).toFile().getAbsolutePath();
	}
	p2DataArea = new File(p2Area);
	}

	profileName = configProps.getProperty(PROP_PROFILE);
	}

	if (p2DataArea == null \|\| !p2DataArea.isDirectory()) {
	p2DataArea = new File(configArea, "p2"); //$NON-NLS-1$
	}

	if (profileName == null \|\| profileName.length() == 0) {
	profileName = "SDKProfile"; //$NON-NLS-1$
	}

	@SuppressWarnings("restriction")
	File profile = new Path(p2DataArea.getAbsolutePath())
	.append(org.eclipse.equinox.internal.p2.engine.EngineActivator.ID).append("profileRegistry") //$NON-NLS-1$
	.append(profileName + ".profile").toFile(); //$NON-NLS-1$

	if (profile.exists()) {
	return profile;
	}

	return null;
	}

	/**
	* Replaces a variable in config.ini
	* @param props properties containing entries from the
	* @param source the string to replace the var in
	* @param var the variable to replace
	* @param prop the property to lookup for a replacement value
	* @param defaultValue value to use if the property can't be found
	* @return source string with the variable replaced with the proper value
	*/
	private String substituteVar(Properties props, String source, String var, String prop, File defaultValue) {
	String value = props.getProperty(prop);
	if (value == null) {
	value = defaultValue.getAbsolutePath();
	}
	return value + source.substring(var.length());
	}

	private boolean isNullOrEqual(Object o1, Object o2) {
	if (o1 == null) {
	return o2 == null;
	}
	if (o2 == null) {
	return false;
	}
	return o1.equals(o2);
	}

	@Override
	public String toString() {
	return new StringBuilder("Installation ").append(fHome).append(' ') //$NON-NLS-1$
	.append(fConfiguration == null ? "Default Configuration" : fConfiguration).toString(); //$NON-NLS-1$
	}

	public void reload() {
	clearResolutionStatus();
	}

	}