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/*******************************************************************************
* Copyright (c) 2004, 2008, 2009 Red Hat, Inc.
* 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:
* Keith Seitz <keiths@redhat.com> - initial API and implementation
* Kent Sebastian <ksebasti@redhat.com> -
*******************************************************************************/
package org.eclipse.linuxtools.internal.oprofile.core;
import java.io.IOException;
import java.net.URL;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IExtensionRegistry;
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.Status;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.linuxtools.internal.oprofile.core.linux.LinuxOpxmlProvider;
import org.eclipse.swt.widgets.Display;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
/**
* The main plugin class to be used in the desktop.
*/
public class OprofileCorePlugin extends Plugin {
private static final String PLUGIN_ID = "org.eclipse.linuxtools.oprofile.core"; //$NON-NLS-1$
//The shared instance.
private static OprofileCorePlugin plugin;
private IOpxmlProvider opxmlProvider;
public static final String DEBUG_PRINT_PREFIX = "DEBUG: "; //$NON-NLS-1$
/**
* The constructor.
*/
public OprofileCorePlugin() {
plugin = this;
}
/**
* This method is called upon plug-in activation
*/
@Override
public void start(BundleContext context) throws Exception {
super.start(context);
}
/**
* This method is called when the plug-in is stopped
*/
@Override
public void stop(BundleContext context) throws Exception {
super.stop(context);
plugin = null;
}
/**
* Returns the shared instance.
*/
public static OprofileCorePlugin getDefault() {
return plugin;
}
/**
* Returns the unique id of this plugin. Should match plugin.xml!
*/
public static String getId() {
return PLUGIN_ID;
}
/**
* Returns the OpxmlProvider registered with the plugin or throws an exception
* @return the OpxmlProvider
*/
public IOpxmlProvider getOpxmlProvider() {
opxmlProvider = new LinuxOpxmlProvider();
return opxmlProvider;
}
/**
* Returns the registered opcontrol provider or throws an exception
* @return the OpcontrolProvider registered with the plugin
* @throws OpcontrolException
*/
public IOpcontrolProvider getOpcontrolProvider() throws OpcontrolException {
// Exception except = null;
//
// if (_opcontrol == null) {
// IExtensionRegistry registry = Platform.getExtensionRegistry();
// IExtensionPoint extension = registry.getExtensionPoint(PLUGIN_ID, "OpcontrolProvider"); //$NON-NLS-1$
// if (extension != null) {
// IExtension[] extensions = extension.getExtensions();
// IConfigurationElement[] configElements = extensions[0].getConfigurationElements();
// if (configElements.length != 0) {
// try {
// _opcontrol = (IOpcontrolProvider) configElements[0].createExecutableExtension("class"); //$NON-NLS-1$
// } catch (CoreException ce) {
// except = ce;
// }
// }
// }
// }
//
// // If there was a problem finding opcontrol, throw an exception
// if (_opcontrol == null) {
// String msg = getResourceString("opcontrolProvider.error.missing"); //$NON-NLS-1$
// Status status = new Status(IStatus.ERROR, getId(), IStatus.OK, msg, except);
// throw new OpcontrolException(status);
// }
//
// return _opcontrol;
IOpcontrolProvider opcontrolProvider = null;
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint extPoint = registry.getExtensionPoint("org.eclipse.linuxtools.oprofile.core.OpcontrolProvider"); //$NON-NLS-1$
if (extPoint != null) {
IExtension[] extensions = extPoint.getExtensions();
for (IExtension extension : extensions) {
IConfigurationElement[] configElements = extension.getConfigurationElements();
if (configElements.length != 0) {
try {
String scheme = configElements[0].getAttribute("scheme");
if(Oprofile.OprofileProject.getProject().getLocationURI().getScheme().equals(scheme)){
opcontrolProvider = (IOpcontrolProvider) configElements[0].createExecutableExtension("class");//$NON-NLS-1$
}
} catch (CoreException ce) {
ce.printStackTrace();
}
}
}
}
// If there was a problem finding opcontrol, throw an exception
if(opcontrolProvider == null) {
throw new OpcontrolException(OprofileCorePlugin.createErrorStatus("opcontrolProvider", null));
}
return opcontrolProvider;
}
public static IStatus createErrorStatus(String errorClassString, Exception e) {
String statusMessage = OprofileProperties.getString(errorClassString + ".error.statusMessage"); //$NON-NLS-1$
if (e == null) {
return new Status(IStatus.ERROR, getId(), IStatus.OK, statusMessage, null);
} else {
return new Status(IStatus.ERROR, getId(), IStatus.OK, statusMessage, e);
}
}
public static void showErrorDialog(String errorClassString, CoreException ex) {
final IStatus status;
final String dialogTitle = OprofileProperties.getString(errorClassString + ".error.dialog.title"); //$NON-NLS-1$
final String errorMessage = OprofileProperties.getString(errorClassString + ".error.dialog.message"); //$NON-NLS-1$
if (ex == null) {
status = createErrorStatus(errorClassString, null);
} else {
status = ex.getStatus();
}
//needs to be run in the ui thread otherwise swt throws invalid thread access
Display.getDefault().syncExec(new Runnable() {
public void run() {
ErrorDialog.openError(null, dialogTitle, errorMessage, status);
}
});
}
/**
*
* @return {@code true} when platform was started in debug mode ({@code -debug} switch)
* and {@code org.eclipse.linuxtools.internal.oprofile.core/debug} is set in some .options file
* either in $HOME/.options or $(pwd)/.options.
*/
public static boolean isDebugMode() {
return Platform.inDebugMode()
&& Platform.getDebugOption(OprofileCorePlugin.getId()
+ "/debug") != null; //$NON-NLS-1$
}
/**
* Log a string message with the given severity in the error log.
*
* @param severity
* @param msg
*/
public static void log(int severity, String msg) {
plugin.getLog().log(new Status(severity, PLUGIN_ID, IStatus.OK, msg, null));
}
/**
* Log an exception in the error log.
*
* @param severity
* @param msg
* @param cause
*/
public static void log(int severity, String msg, Throwable cause) {
plugin.getLog().log(new Status(severity, PLUGIN_ID, IStatus.OK, msg, cause));
}
/**
* Returns the location of the plugin by checking the path of the bundle's
* locationURL.
*
* @return An absolute path representing the location of this plugin
*/
public String getPluginLocation() {
Bundle bundle = getBundle();
URL locationUrl = FileLocator.find(bundle,new Path("/"), null); //$NON-NLS-1$
URL fileUrl = null;
try {
fileUrl = FileLocator.toFileURL(locationUrl);
} catch (IOException e) {
e.printStackTrace();
}
return fileUrl.getFile();
}
}
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