bundles/org.eclipse.equinox.p2.touchpoint.natives/src/org/eclipse/equinox/internal/p2/touchpoint/natives/NativePackageExtractionApplication.java - equinox/rt.equinox.p2 - Git at Google

 /*******************************************************************************
  * Copyright (c) 2014, 2017 Rapicorp, Inc 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:
  *     Rapicorp, Inc - application to collect native packages from an existing install
  *******************************************************************************/
 package org.eclipse.equinox.internal.p2.touchpoint.natives;

 import java.io.*;
 import java.net.URI;
 import java.util.*;
 import org.eclipse.core.runtime.*;
 import org.eclipse.equinox.app.IApplication;
 import org.eclipse.equinox.app.IApplicationContext;
 import org.eclipse.equinox.internal.p2.touchpoint.natives.actions.ActionConstants;
 import org.eclipse.equinox.internal.p2.touchpoint.natives.actions.CheckAndPromptNativePackage;
 import org.eclipse.equinox.p2.core.*;
 import org.eclipse.equinox.p2.engine.IProfile;
 import org.eclipse.equinox.p2.engine.IProfileRegistry;
 import org.eclipse.equinox.p2.metadata.*;
 import org.eclipse.equinox.p2.query.IQueryResult;
 import org.eclipse.equinox.p2.query.QueryUtil;
 import org.eclipse.osgi.util.NLS;
 import org.osgi.framework.ServiceReference;

 public class NativePackageExtractionApplication implements IApplication {
 	//Keys used in the file created by the application
 	private static final String PROP_LAUNCHER_NAME = "launcherName"; //$NON-NLS-1$
 	private static final String PROP_ARCH = "arch"; //$NON-NLS-1$
 	private static final String PROP_DEPENDS = "depends"; //$NON-NLS-1$

 	//Internal constants
 	private static final String DEFAULT_VERSION_CONSTRAINT = "ge"; //$NON-NLS-1$
 	private static final String _ACTION_ID = "_action_id_"; //$NON-NLS-1$
 	private static final String PROP_P2_PROFILE = "eclipse.p2.profile"; //$NON-NLS-1$
 	private static final Integer EXIT_ERROR = 13;

 	//Constants for arguments
 	private static final String OPTION_TO_ANALYZE = "-toAnalyze"; //$NON-NLS-1$
 	private static final String OPTION_RESULT_FILE = "-output"; //$NON-NLS-1$

 	//Values provided as a parameter to the application
 	private File installation;
 	private File resultFile;

 	//Values derived
 	private IProvisioningAgent targetAgent;
 	private String profileId;

 	//Data collected by the application
 	private Properties extractedData = new Properties();

 	private Properties installCommandsProperties = new Properties();

 	private boolean stackTrace = false;

 	@Override
 	public Object start(IApplicationContext context) throws Exception {
 		try {
 			processArguments((String[]) context.getArguments().get("application.args")); //$NON-NLS-1$
 			initializeServices();
 			NativeTouchpoint.loadInstallCommandsProperties(installCommandsProperties, "debian"); //$NON-NLS-1$
 			NativeTouchpoint.loadInstallCommandsProperties(installCommandsProperties, "fedora"); //$NON-NLS-1$
 			NativeTouchpoint.loadInstallCommandsProperties(installCommandsProperties, "windows"); //$NON-NLS-1$
 			collectData();
 			persistInformation();
 		} catch (CoreException e) {
 			deeplyPrint(e.getStatus(), System.err, 0);
 			return EXIT_ERROR;
 		}
 		return IApplication.EXIT_OK;
 	}

 	private void processArguments(String[] args) throws CoreException {
 		if (args == null || args.length == 0) {
 			throw new CoreException(new Status(IStatus.ERROR, Activator.ID, NLS.bind(Messages.NativePackageExtractionApplication_MissingParameters, OPTION_TO_ANALYZE, OPTION_RESULT_FILE)));
 		}
 		for (int i = 0; i < args.length; i++) {
 			// check for args without parameters (i.e., a flag arg)
 			String opt = args[i];

 			if (OPTION_TO_ANALYZE.equals(opt)) {
 				installation = new File(getRequiredArgument(args, ++i));
 				if (!installation.exists())
 					throw new CoreException(new Status(IStatus.ERROR, Activator.ID, Messages.NativePackageExtractionApplication_FolderNotFound + installation.getAbsolutePath()));
 				continue;
 			}

 			if (OPTION_RESULT_FILE.equals(opt)) {
 				resultFile = new File(getRequiredArgument(args, ++i));
 				continue;
 			}
 		}
 	}

 	private static String getRequiredArgument(String[] args, int argIdx) throws CoreException {
 		if (argIdx < args.length) {
 			String arg = args[argIdx];
 			if (!arg.startsWith("-")) //$NON-NLS-1$
 				return arg;
 		}
 		throw new ProvisionException(NLS.bind(Messages.NativePackageExtractionApplication_MissingValue, args[argIdx - 1]));
 	}

 	private void collectData() {
 		IProfileRegistry registry = (IProfileRegistry) targetAgent.getService(IProfileRegistry.SERVICE_NAME);
 		IProfile p = registry.getProfile(profileId);
 		collectArchitecture(p);
 		collectLauncherName(p);
 		collectDebianDependencies(p);
 	}

 	private void persistInformation() throws CoreException {
 		try (BufferedOutputStream os = new BufferedOutputStream(new FileOutputStream(resultFile))) {
 			extractedData.store(os, "Data extracted from eclipse located at " + installation); //$NON-NLS-1$
 		} catch (IOException e) {
 			throw new CoreException(new Status(IStatus.ERROR, Activator.ID, Messages.NativePackageExtractionApplication_PersistencePb + resultFile.getAbsolutePath(), e));
 		}
 	}

 	private void collectLauncherName(IProfile p) {
 		String launcherName = p.getProperty("eclipse.touchpoint.launcherName"); //$NON-NLS-1$
 		if (launcherName == null)
 			launcherName = ""; //$NON-NLS-1$
 		extractedData.put(PROP_LAUNCHER_NAME, launcherName);
 	}

 	private void collectArchitecture(IProfile p) {
 		String environments = p.getProperty(IProfile.PROP_ENVIRONMENTS);
 		if (environments != null) {
 			for (StringTokenizer tokenizer = new StringTokenizer(environments, ","); tokenizer.hasMoreElements();) { //$NON-NLS-1$
 				String entry = tokenizer.nextToken();
 				int i = entry.indexOf('=');
 				String key = entry.substring(0, i).trim();
 				String value = entry.substring(i + 1).trim();
 				if (!key.equals("osgi.arch")) //$NON-NLS-1$
 					continue;

 				if ("x86_64".equals(value)) { //$NON-NLS-1$
 					extractedData.put(PROP_ARCH, "amd64"); //$NON-NLS-1$
 					return;
 				}
 				if ("x86".equals(value)) { //$NON-NLS-1$
 					extractedData.put(PROP_ARCH, "x86"); //$NON-NLS-1$
 					return;
 				}
 			}
 		}
 		extractedData.put(PROP_ARCH, ""); //$NON-NLS-1$
 	}

 	private void collectDebianDependencies(IProfile p) {
 		String depends = ""; //$NON-NLS-1$
 		IQueryResult<IInstallableUnit> allIUs = p.available(QueryUtil.ALL_UNITS, new NullProgressMonitor());
 		Iterator<IInstallableUnit> a = allIUs.iterator();
 		while (a.hasNext()) {
 			IInstallableUnit iu = a.next();
 			Collection<ITouchpointData> tpdata = iu.getTouchpointData();
 			for (ITouchpointData data : tpdata) {
 				Map<String, ITouchpointInstruction> allInstructions = data.getInstructions();
 				for (ITouchpointInstruction instruction : allInstructions.values()) {
 					StringTokenizer tokenizer = new StringTokenizer(instruction.getBody(), ";"); //$NON-NLS-1$
 					while (tokenizer.hasMoreTokens()) {
 						Map<String, String> parsedInstructions = parseInstruction(tokenizer.nextToken());
 						if (parsedInstructions != null && parsedInstructions.get(_ACTION_ID).endsWith(CheckAndPromptNativePackage.ID)) {
 							if ("debian".equals(parsedInstructions.get(ActionConstants.PARM_LINUX_DISTRO))) { //$NON-NLS-1$
 								depends += formatAsDependsEntry(parsedInstructions.get(ActionConstants.PARM_LINUX_PACKAGE_NAME), parsedInstructions.get(ActionConstants.PARM_LINUX_PACKAGE_VERSION), parsedInstructions.get(ActionConstants.PARM_LINUX_VERSION_COMPARATOR)) + ',';
 							}
 						}
 					}
 				}
 			}
 		}
 		//pre-prend a comma, and remove the last one
 		if (depends.length() > 0)
 			depends = ',' + depends.substring(0, depends.length() - 1);

 		extractedData.put(PROP_DEPENDS, depends);
 	}

 	private String formatAsDependsEntry(String packageId, String version, String versionComparator) {
 		String result = packageId;
 		if (versionComparator == null)
 			versionComparator = DEFAULT_VERSION_CONSTRAINT;
 		if (version != null) {
 			result += '(' + getUserFriendlyComparator(versionComparator) + ' ' + version + ')';
 		}
 		return result;
 	}

 	private String getUserFriendlyComparator(String comparator) {
 		return installCommandsProperties.getProperty(comparator, ""); //$NON-NLS-1$
 	}

 	//Code copied from the InstructionParser class
 	private Map<String, String> parseInstruction(String statement) {
 		Map<String, String> instructions = new HashMap<>();

 		int openBracket = statement.indexOf('(');
 		int closeBracket = statement.lastIndexOf(')');
 		if (openBracket == -1 || closeBracket == -1 || openBracket > closeBracket)
 			return null;
 		instructions.put(_ACTION_ID, statement.substring(0, openBracket).trim());

 		String nameValuePairs = statement.substring(openBracket + 1, closeBracket);
 		if (nameValuePairs.length() == 0)
 			return instructions;

 		StringTokenizer tokenizer = new StringTokenizer(nameValuePairs, ","); //$NON-NLS-1$
 		while (tokenizer.hasMoreTokens()) {
 			String nameValuePair = tokenizer.nextToken();
 			int colonIndex = nameValuePair.indexOf(":"); //$NON-NLS-1$
 			if (colonIndex == -1)
 				return null;
 			String name = nameValuePair.substring(0, colonIndex).trim();
 			String value = nameValuePair.substring(colonIndex + 1).trim();
 			instructions.put(name, value);
 		}
 		return instructions;
 	}

 	private void initializeServices() throws ProvisionException {
 		ServiceReference<IProvisioningAgentProvider> agentProviderRef = Activator.getContext().getServiceReference(IProvisioningAgentProvider.class);
 		IProvisioningAgentProvider provider = Activator.getContext().getService(agentProviderRef);

 		URI p2DataArea = new File(installation, "p2").toURI(); //$NON-NLS-1$
 		targetAgent = provider.createAgent(p2DataArea);
 		targetAgent.registerService(IProvisioningAgent.INSTALLER_AGENT, provider.createAgent(null));

 		Activator.getContext().ungetService(agentProviderRef);
 		if (profileId == null) {
 			if (installation != null) {
 				File configIni = new File(installation, "configuration/config.ini"); //$NON-NLS-1$
 				Properties ciProps = new Properties();
 				try (InputStream in = new BufferedInputStream(new FileInputStream(configIni))) {
 					ciProps.load(in);
 					profileId = ciProps.getProperty(PROP_P2_PROFILE);
 				} catch (IOException e) {
 					// Ignore
 				}
 				if (profileId == null)
 					profileId = installation.toString();
 			}
 		}
 		if (profileId != null)
 			targetAgent.registerService(PROP_P2_PROFILE, profileId);
 	}

 	private static void appendLevelPrefix(PrintStream strm, int level) {
 		for (int idx = 0; idx < level; ++idx)
 			strm.print(' ');
 	}

 	private void deeplyPrint(CoreException ce, PrintStream strm, int level) {
 		appendLevelPrefix(strm, level);
 		if (stackTrace)
 			ce.printStackTrace(strm);
 		deeplyPrint(ce.getStatus(), strm, level);
 	}

 	private void deeplyPrint(IStatus status, PrintStream strm, int level) {
 		appendLevelPrefix(strm, level);
 		String msg = status.getMessage();
 		strm.println(msg);
 		Throwable cause = status.getException();
 		if (cause != null) {
 			strm.print("Caused by: "); //$NON-NLS-1$
 			if (stackTrace || !(msg.equals(cause.getMessage()) || msg.equals(cause.toString())))
 				deeplyPrint(cause, strm, level);
 		}

 		if (status.isMultiStatus()) {
 			IStatus[] children = status.getChildren();
 			for (int i = 0; i < children.length; i++)
 				deeplyPrint(children[i], strm, level + 1);
 		}
 	}

 	private void deeplyPrint(Throwable t, PrintStream strm, int level) {
 		if (t instanceof CoreException)
 			deeplyPrint((CoreException) t, strm, level);
 		else {
 			appendLevelPrefix(strm, level);
 			if (stackTrace)
 				t.printStackTrace(strm);
 			else {
 				strm.println(t.toString());
 				Throwable cause = t.getCause();
 				if (cause != null) {
 					strm.print("Caused by: "); //$NON-NLS-1$
 					deeplyPrint(cause, strm, level);
 				}
 			}
 		}
 	}

 	@Override
 	public void stop() {
 		//We don't handle application stopping
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2014, 2017 Rapicorp, Inc 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:
	* Rapicorp, Inc - application to collect native packages from an existing install
	*******************************************************************************/
	package org.eclipse.equinox.internal.p2.touchpoint.natives;

	import java.io.*;
	import java.net.URI;
	import java.util.*;
	import org.eclipse.core.runtime.*;
	import org.eclipse.equinox.app.IApplication;
	import org.eclipse.equinox.app.IApplicationContext;
	import org.eclipse.equinox.internal.p2.touchpoint.natives.actions.ActionConstants;
	import org.eclipse.equinox.internal.p2.touchpoint.natives.actions.CheckAndPromptNativePackage;
	import org.eclipse.equinox.p2.core.*;
	import org.eclipse.equinox.p2.engine.IProfile;
	import org.eclipse.equinox.p2.engine.IProfileRegistry;
	import org.eclipse.equinox.p2.metadata.*;
	import org.eclipse.equinox.p2.query.IQueryResult;
	import org.eclipse.equinox.p2.query.QueryUtil;
	import org.eclipse.osgi.util.NLS;
	import org.osgi.framework.ServiceReference;

	public class NativePackageExtractionApplication implements IApplication {
	//Keys used in the file created by the application
	private static final String PROP_LAUNCHER_NAME = "launcherName"; //$NON-NLS-1$
	private static final String PROP_ARCH = "arch"; //$NON-NLS-1$
	private static final String PROP_DEPENDS = "depends"; //$NON-NLS-1$

	//Internal constants
	private static final String DEFAULT_VERSION_CONSTRAINT = "ge"; //$NON-NLS-1$
	private static final String _ACTION_ID = "_action_id_"; //$NON-NLS-1$
	private static final String PROP_P2_PROFILE = "eclipse.p2.profile"; //$NON-NLS-1$
	private static final Integer EXIT_ERROR = 13;

	//Constants for arguments
	private static final String OPTION_TO_ANALYZE = "-toAnalyze"; //$NON-NLS-1$
	private static final String OPTION_RESULT_FILE = "-output"; //$NON-NLS-1$

	//Values provided as a parameter to the application
	private File installation;
	private File resultFile;

	//Values derived
	private IProvisioningAgent targetAgent;
	private String profileId;

	//Data collected by the application
	private Properties extractedData = new Properties();

	private Properties installCommandsProperties = new Properties();

	private boolean stackTrace = false;

	@Override
	public Object start(IApplicationContext context) throws Exception {
	try {
	processArguments((String[]) context.getArguments().get("application.args")); //$NON-NLS-1$
	initializeServices();
	NativeTouchpoint.loadInstallCommandsProperties(installCommandsProperties, "debian"); //$NON-NLS-1$
	NativeTouchpoint.loadInstallCommandsProperties(installCommandsProperties, "fedora"); //$NON-NLS-1$
	NativeTouchpoint.loadInstallCommandsProperties(installCommandsProperties, "windows"); //$NON-NLS-1$
	collectData();
	persistInformation();
	} catch (CoreException e) {
	deeplyPrint(e.getStatus(), System.err, 0);
	return EXIT_ERROR;
	}
	return IApplication.EXIT_OK;
	}

	private void processArguments(String[] args) throws CoreException {
	if (args == null \|\| args.length == 0) {
	throw new CoreException(new Status(IStatus.ERROR, Activator.ID, NLS.bind(Messages.NativePackageExtractionApplication_MissingParameters, OPTION_TO_ANALYZE, OPTION_RESULT_FILE)));
	}
	for (int i = 0; i < args.length; i++) {
	// check for args without parameters (i.e., a flag arg)
	String opt = args[i];

	if (OPTION_TO_ANALYZE.equals(opt)) {
	installation = new File(getRequiredArgument(args, ++i));
	if (!installation.exists())
	throw new CoreException(new Status(IStatus.ERROR, Activator.ID, Messages.NativePackageExtractionApplication_FolderNotFound + installation.getAbsolutePath()));
	continue;
	}

	if (OPTION_RESULT_FILE.equals(opt)) {
	resultFile = new File(getRequiredArgument(args, ++i));
	continue;
	}
	}
	}

	private static String getRequiredArgument(String[] args, int argIdx) throws CoreException {
	if (argIdx < args.length) {
	String arg = args[argIdx];
	if (!arg.startsWith("-")) //$NON-NLS-1$
	return arg;
	}
	throw new ProvisionException(NLS.bind(Messages.NativePackageExtractionApplication_MissingValue, args[argIdx - 1]));
	}

	private void collectData() {
	IProfileRegistry registry = (IProfileRegistry) targetAgent.getService(IProfileRegistry.SERVICE_NAME);
	IProfile p = registry.getProfile(profileId);
	collectArchitecture(p);
	collectLauncherName(p);
	collectDebianDependencies(p);
	}

	private void persistInformation() throws CoreException {
	try (BufferedOutputStream os = new BufferedOutputStream(new FileOutputStream(resultFile))) {
	extractedData.store(os, "Data extracted from eclipse located at " + installation); //$NON-NLS-1$
	} catch (IOException e) {
	throw new CoreException(new Status(IStatus.ERROR, Activator.ID, Messages.NativePackageExtractionApplication_PersistencePb + resultFile.getAbsolutePath(), e));
	}
	}

	private void collectLauncherName(IProfile p) {
	String launcherName = p.getProperty("eclipse.touchpoint.launcherName"); //$NON-NLS-1$
	if (launcherName == null)
	launcherName = ""; //$NON-NLS-1$
	extractedData.put(PROP_LAUNCHER_NAME, launcherName);
	}

	private void collectArchitecture(IProfile p) {
	String environments = p.getProperty(IProfile.PROP_ENVIRONMENTS);
	if (environments != null) {
	for (StringTokenizer tokenizer = new StringTokenizer(environments, ","); tokenizer.hasMoreElements();) { //$NON-NLS-1$
	String entry = tokenizer.nextToken();
	int i = entry.indexOf('=');
	String key = entry.substring(0, i).trim();
	String value = entry.substring(i + 1).trim();
	if (!key.equals("osgi.arch")) //$NON-NLS-1$
	continue;

	if ("x86_64".equals(value)) { //$NON-NLS-1$
	extractedData.put(PROP_ARCH, "amd64"); //$NON-NLS-1$
	return;
	}
	if ("x86".equals(value)) { //$NON-NLS-1$
	extractedData.put(PROP_ARCH, "x86"); //$NON-NLS-1$
	return;
	}
	}
	}
	extractedData.put(PROP_ARCH, ""); //$NON-NLS-1$
	}

	private void collectDebianDependencies(IProfile p) {
	String depends = ""; //$NON-NLS-1$
	IQueryResult<IInstallableUnit> allIUs = p.available(QueryUtil.ALL_UNITS, new NullProgressMonitor());
	Iterator<IInstallableUnit> a = allIUs.iterator();
	while (a.hasNext()) {
	IInstallableUnit iu = a.next();
	Collection<ITouchpointData> tpdata = iu.getTouchpointData();
	for (ITouchpointData data : tpdata) {
	Map<String, ITouchpointInstruction> allInstructions = data.getInstructions();
	for (ITouchpointInstruction instruction : allInstructions.values()) {
	StringTokenizer tokenizer = new StringTokenizer(instruction.getBody(), ";"); //$NON-NLS-1$
	while (tokenizer.hasMoreTokens()) {
	Map<String, String> parsedInstructions = parseInstruction(tokenizer.nextToken());
	if (parsedInstructions != null && parsedInstructions.get(_ACTION_ID).endsWith(CheckAndPromptNativePackage.ID)) {
	if ("debian".equals(parsedInstructions.get(ActionConstants.PARM_LINUX_DISTRO))) { //$NON-NLS-1$
	depends += formatAsDependsEntry(parsedInstructions.get(ActionConstants.PARM_LINUX_PACKAGE_NAME), parsedInstructions.get(ActionConstants.PARM_LINUX_PACKAGE_VERSION), parsedInstructions.get(ActionConstants.PARM_LINUX_VERSION_COMPARATOR)) + ',';
	}
	}
	}
	}
	}
	}
	//pre-prend a comma, and remove the last one
	if (depends.length() > 0)
	depends = ',' + depends.substring(0, depends.length() - 1);

	extractedData.put(PROP_DEPENDS, depends);
	}

	private String formatAsDependsEntry(String packageId, String version, String versionComparator) {
	String result = packageId;
	if (versionComparator == null)
	versionComparator = DEFAULT_VERSION_CONSTRAINT;
	if (version != null) {
	result += '(' + getUserFriendlyComparator(versionComparator) + ' ' + version + ')';
	}
	return result;
	}

	private String getUserFriendlyComparator(String comparator) {
	return installCommandsProperties.getProperty(comparator, ""); //$NON-NLS-1$
	}

	//Code copied from the InstructionParser class
	private Map<String, String> parseInstruction(String statement) {
	Map<String, String> instructions = new HashMap<>();

	int openBracket = statement.indexOf('(');
	int closeBracket = statement.lastIndexOf(')');
	if (openBracket == -1 \|\| closeBracket == -1 \|\| openBracket > closeBracket)
	return null;
	instructions.put(_ACTION_ID, statement.substring(0, openBracket).trim());

	String nameValuePairs = statement.substring(openBracket + 1, closeBracket);
	if (nameValuePairs.length() == 0)
	return instructions;

	StringTokenizer tokenizer = new StringTokenizer(nameValuePairs, ","); //$NON-NLS-1$
	while (tokenizer.hasMoreTokens()) {
	String nameValuePair = tokenizer.nextToken();
	int colonIndex = nameValuePair.indexOf(":"); //$NON-NLS-1$
	if (colonIndex == -1)
	return null;
	String name = nameValuePair.substring(0, colonIndex).trim();
	String value = nameValuePair.substring(colonIndex + 1).trim();
	instructions.put(name, value);
	}
	return instructions;
	}

	private void initializeServices() throws ProvisionException {
	ServiceReference<IProvisioningAgentProvider> agentProviderRef = Activator.getContext().getServiceReference(IProvisioningAgentProvider.class);
	IProvisioningAgentProvider provider = Activator.getContext().getService(agentProviderRef);

	URI p2DataArea = new File(installation, "p2").toURI(); //$NON-NLS-1$
	targetAgent = provider.createAgent(p2DataArea);
	targetAgent.registerService(IProvisioningAgent.INSTALLER_AGENT, provider.createAgent(null));

	Activator.getContext().ungetService(agentProviderRef);
	if (profileId == null) {
	if (installation != null) {
	File configIni = new File(installation, "configuration/config.ini"); //$NON-NLS-1$
	Properties ciProps = new Properties();
	try (InputStream in = new BufferedInputStream(new FileInputStream(configIni))) {
	ciProps.load(in);
	profileId = ciProps.getProperty(PROP_P2_PROFILE);
	} catch (IOException e) {
	// Ignore
	}
	if (profileId == null)
	profileId = installation.toString();
	}
	}
	if (profileId != null)
	targetAgent.registerService(PROP_P2_PROFILE, profileId);
	}

	private static void appendLevelPrefix(PrintStream strm, int level) {
	for (int idx = 0; idx < level; ++idx)
	strm.print(' ');
	}

	private void deeplyPrint(CoreException ce, PrintStream strm, int level) {
	appendLevelPrefix(strm, level);
	if (stackTrace)
	ce.printStackTrace(strm);
	deeplyPrint(ce.getStatus(), strm, level);
	}

	private void deeplyPrint(IStatus status, PrintStream strm, int level) {
	appendLevelPrefix(strm, level);
	String msg = status.getMessage();
	strm.println(msg);
	Throwable cause = status.getException();
	if (cause != null) {
	strm.print("Caused by: "); //$NON-NLS-1$
	if (stackTrace \|\| !(msg.equals(cause.getMessage()) \|\| msg.equals(cause.toString())))
	deeplyPrint(cause, strm, level);
	}

	if (status.isMultiStatus()) {
	IStatus[] children = status.getChildren();
	for (int i = 0; i < children.length; i++)
	deeplyPrint(children[i], strm, level + 1);
	}
	}

	private void deeplyPrint(Throwable t, PrintStream strm, int level) {
	if (t instanceof CoreException)
	deeplyPrint((CoreException) t, strm, level);
	else {
	appendLevelPrefix(strm, level);
	if (stackTrace)
	t.printStackTrace(strm);
	else {
	strm.println(t.toString());
	Throwable cause = t.getCause();
	if (cause != null) {
	strm.print("Caused by: "); //$NON-NLS-1$
	deeplyPrint(cause, strm, level);
	}
	}
	}
	}

	@Override
	public void stop() {
	//We don't handle application stopping
	}

	}