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/*
* Copyright (c) 2002 IBM Corp. All rights reserved.
* This file is made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*/
package org.eclipse.team.examples.pessimistic;
import java.util.*;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.*;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.ui.plugin.AbstractUIPlugin;
/**
* The plugin for the <code>PessimisticFilesystemProvider</code>.
*/
public class PessimisticFilesystemProviderPlugin extends AbstractUIPlugin {
/*
* Singleton instance.
*/
private static PessimisticFilesystemProviderPlugin instance;
/*
* The resource change listener which notifies the provider of
* added and deleted files.
*/
private ResourceChangeListener fListener;
/*
* The provider listeners
*/
private List fListeners;
/**
* The plugin identifier
*/
public static final String PLUGIN_ID = "org.eclipse.team.examples.pessimistic";
/**
* The nature identifier.
*/
public static final String NATURE_ID = PLUGIN_ID + ".pessimisticnature";
/**
* Contstructor required by plugin lifecycle.
*/
public PessimisticFilesystemProviderPlugin(IPluginDescriptor pluginDescriptor) {
super(pluginDescriptor);
instance = this;
fListeners= new ArrayList(1);
//setDebugging(true);
}
/**
* Answers the singleton instance of this plugin.
*/
public static PessimisticFilesystemProviderPlugin getInstance() {
return instance;
}
/**
* Initializes the default preferences for this plugin.
*/
protected void initializeDefaultPreferences(IPreferenceStore store) {
store.setDefault(
IPessimisticFilesystemConstants.PREF_CHECKED_IN_FILES_EDITED,
IPessimisticFilesystemConstants.OPTION_PROMPT);
store.setDefault(
IPessimisticFilesystemConstants.PREF_CHECKED_IN_FILES_EDITED_NOPROMPT,
IPessimisticFilesystemConstants.OPTION_AUTOMATIC);
store.setDefault(
IPessimisticFilesystemConstants.PREF_CHECKED_IN_FILES_SAVED,
IPessimisticFilesystemConstants.OPTION_DO_NOTHING);
store.setDefault(
IPessimisticFilesystemConstants.PREF_ADD_TO_CONTROL,
IPessimisticFilesystemConstants.OPTION_PROMPT);
store.setDefault(IPessimisticFilesystemConstants.PREF_FAIL_VALIDATE_EDIT, false);
store.setDefault(IPessimisticFilesystemConstants.PREF_TOUCH_DURING_VALIDATE_EDIT, true);
}
/**
* Convenience method for logging errors.
*/
public void logError(Throwable exception, String message) {
String pluginId= getDescriptor().getUniqueIdentifier();
Status status= new Status(Status.ERROR, pluginId, Status.OK, message, exception);
getLog().log(status);
if (isDebugging()) {
System.out.println(message);
exception.printStackTrace();
}
}
/**
* Starts the resource listener.
*
* @see Plugin#startup()
*/
public void startup() throws CoreException {
fListener= new ResourceChangeListener();
fListener.startup();
super.startup();
}
/**
* Stops the resource listener.
*
* @see Plugin#startup()
*/
public void shutdown() throws CoreException {
fListener.shutdown();
fListener= null;
super.shutdown();
}
/**
* Notifies the registered <code>IResourceStateListener</code> objects
* that the repository state for the resources has changed.
*
* @param resources Collection of resources that have changed.
*/
public void fireResourcesChanged(IResource[] resources) {
if (resources == null || resources.length == 0 || fListeners.isEmpty())
return;
for (Iterator i= fListeners.iterator(); i.hasNext();) {
IResourceStateListener listener= (IResourceStateListener) i.next();
listener.stateChanged(resources);
}
}
/**
* Adds the listener to the list of listeners that are notified when
* the repository state of resources change.
*
* @param listener
*/
public void addProviderListener(IResourceStateListener listener) {
if (fListeners.contains(listener))
return;
fListeners.add(listener);
}
/**
* Removes the listener from the list of listeners that are notified when
* the repository state of resources change.
*
* @param listener
*/
public void removeProviderListener(IResourceStateListener listener) {
fListeners.remove(listener);
}
}
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