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/*******************************************************************************
* Copyright (c) 2000, 2017 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
*******************************************************************************/
package org.eclipse.team.internal.core;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Hashtable;
import java.util.List;
import java.util.StringTokenizer;
import org.eclipse.core.resources.IStorage;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Plugin;
import org.eclipse.core.runtime.QualifiedName;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.content.IContentDescription;
import org.eclipse.core.runtime.content.IContentTypeManager;
import org.eclipse.osgi.service.debug.DebugOptions;
import org.eclipse.osgi.service.debug.DebugOptionsListener;
import org.eclipse.team.core.RepositoryProvider;
import org.eclipse.team.core.RepositoryProviderType;
import org.eclipse.team.core.Team;
import org.eclipse.team.core.TeamException;
import org.eclipse.team.core.mapping.DelegatingStorageMerger;
import org.eclipse.team.internal.core.mapping.IStreamMergerDelegate;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceRegistration;
/**
* <code>TeamPlugin</code> is the plug-in runtime class for the Team
* resource management plugin.
* <p>
*
* @see Team
* @see RepositoryProvider
*
* @since 2.0
*/
final public class TeamPlugin extends Plugin {
// The id of the core team plug-in
public static final String ID = "org.eclipse.team.core"; //$NON-NLS-1$
// The id of the providers extension point
public static final String PROVIDER_EXTENSION = "repository-provider-type"; //$NON-NLS-1$
// The id of the file types extension point
public static final String FILE_TYPES_EXTENSION = "fileTypes"; //$NON-NLS-1$
// The id of the global ignore extension point
public static final String IGNORE_EXTENSION = "ignore"; //$NON-NLS-1$
// The id of the project set extension point
public static final String PROJECT_SET_EXTENSION = "projectSets"; //$NON-NLS-1$
// The id of the repository extension point
public static final String REPOSITORY_EXTENSION = "repository"; //$NON-NLS-1$
// The id of the default file modification validator extension point
public static final String DEFAULT_FILE_MODIFICATION_VALIDATOR_EXTENSION = "defaultFileModificationValidator"; //$NON-NLS-1$
// The id used to associate a provider with a project
public final static QualifiedName PROVIDER_PROP_KEY =
new QualifiedName("org.eclipse.team.core", "repository"); //$NON-NLS-1$ //$NON-NLS-2$
// The id for the Bundle Import extension point
public static final String EXTENSION_POINT_BUNDLE_IMPORTERS = ID + ".bundleImporters"; //$NON-NLS-1$
// The one and only plug-in instance
private static TeamPlugin plugin;
private ServiceRegistration debugRegistration;
private IStreamMergerDelegate mergerDelegate;
/**
* Constructs a plug-in runtime class.
*/
public TeamPlugin() {
super();
plugin = this;
}
@Override
public void start(BundleContext context) throws Exception {
super.start(context);
// register debug options listener
Hashtable<String, String> properties = new Hashtable<>(2);
properties.put(DebugOptions.LISTENER_SYMBOLICNAME, ID);
debugRegistration = context.registerService(DebugOptionsListener.class, Policy.DEBUG_OPTIONS_LISTENER, properties);
Team.startup();
}
@Override
public void stop(BundleContext context) throws Exception {
try {
// unregister debug options listener
debugRegistration.unregister();
debugRegistration = null;
Team.shutdown();
ResourceVariantCache.shutdown();
} finally {
super.stop(context);
}
}
/**
* Returns the Team plug-in.
*
* @return the single instance of this plug-in runtime class
*/
public static TeamPlugin getPlugin() {
return plugin;
}
/**
* Log the given exception allowing with the provided message and severity indicator
* @param severity the severity
* @param message the message
* @param e the exception
*/
public static void log(int severity, String message, Throwable e) {
plugin.getLog().log(new Status(severity, ID, 0, message, e));
}
/**
* Log the given CoreException in a manner that will include the stacktrace of
* the exception in the log.
* @param e the exception
*/
public static void log(CoreException e) {
log(e.getStatus().getSeverity(), e.getMessage(), e);
}
/*
* Static helper methods for creating exceptions
*/
public static TeamException wrapException(CoreException e) {
IStatus status = e.getStatus();
return new TeamException(new Status(status.getSeverity(), ID, status.getCode(), status.getMessage(), e));
}
public static String getCharset(String name, InputStream stream) throws IOException {
IContentDescription description = getContentDescription(name, stream);
return description == null ? null : description.getCharset();
}
public static IContentDescription getContentDescription(String name, InputStream stream) throws IOException {
// tries to obtain a description for this file contents
IContentTypeManager contentTypeManager = Platform.getContentTypeManager();
try {
return contentTypeManager.getDescriptionFor(stream, name, IContentDescription.ALL);
} finally {
if (stream != null)
try {
stream.close();
} catch (IOException e) {
// Ignore exceptions on close
}
}
}
public static RepositoryProviderType getAliasType(String id) {
IExtensionPoint extension = Platform.getExtensionRegistry().getExtensionPoint(TeamPlugin.ID, TeamPlugin.REPOSITORY_EXTENSION);
if (extension != null) {
IExtension[] extensions = extension.getExtensions();
for (int i = 0; i < extensions.length; i++) {
IConfigurationElement [] configElements = extensions[i].getConfigurationElements();
for (int j = 0; j < configElements.length; j++) {
String aliasId = configElements[j].getAttribute("canImportId"); //$NON-NLS-1$
if (aliasId != null && aliasId.equals(id)) {
String extensionId = configElements[j].getAttribute("id"); //$NON-NLS-1$
if (extensionId != null) {
return RepositoryProviderType.getProviderType(extensionId);
}
}
}
}
}
return null;
}
public static IPath[] getMetaFilePaths(String id) {
IExtensionPoint extension = Platform.getExtensionRegistry().getExtensionPoint(TeamPlugin.ID, TeamPlugin.REPOSITORY_EXTENSION);
if (extension != null) {
IExtension[] extensions = extension.getExtensions();
for (int i = 0; i < extensions.length; i++) {
IConfigurationElement [] configElements = extensions[i].getConfigurationElements();
for (int j = 0; j < configElements.length; j++) {
String extensionId = configElements[j].getAttribute("id"); //$NON-NLS-1$
String metaFilePaths = configElements[j].getAttribute("metaFilePaths"); //$NON-NLS-1$
if (extensionId != null && extensionId.equals(id) && metaFilePaths != null) {
return getPaths(metaFilePaths);
}
}
}
}
return null;
}
private static IPath[] getPaths(String metaFilePaths) {
List<IPath> result = new ArrayList<>();
StringTokenizer t = new StringTokenizer(metaFilePaths, ","); //$NON-NLS-1$
while (t.hasMoreTokens()) {
String next = t.nextToken();
IPath path = new Path(null, next);
result.add(path);
}
return result.toArray(new IPath[result.size()]);
}
/**
* Set the file merger that is used by the {@link DelegatingStorageMerger#merge(OutputStream, String, IStorage, IStorage, IStorage, IProgressMonitor)}
* method. It is the responsibility of subclasses to provide a merger.
* If a merger is not provided, subclasses must override <code>performThreeWayMerge</code>.
* @param merger the merger used to merge files
*/
public void setMergerDelegate(IStreamMergerDelegate merger) {
mergerDelegate = merger;
}
public IStreamMergerDelegate getMergerDelegate() {
return mergerDelegate;
}
}
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