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/**
*
*
* Copyright (c) 2006, 2008 IBM Corporation, Zeligsoft 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:
* IBM - Initial API and implementation
* Zeligsoft - Bugs 207365, 252000
* E.D. Willink - Bug 252000
*
*
*
* $Id: OCLPlugin.java,v 1.7 2008/11/24 00:22:39 cdamus Exp $
*/
package org.eclipse.ocl.internal;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.emf.common.EMFPlugin;
import org.eclipse.emf.common.util.Diagnostic;
import org.eclipse.emf.common.util.ResourceLocator;
import org.eclipse.ocl.Environment;
import org.osgi.framework.BundleContext;
/**
* The activator class controls the plug-in life cycle
*/
public class OCLPlugin
extends EMFPlugin {
public static final String EMPTY_STRING = ""; //$NON-NLS-1$
private static final String PREFIX_THROWING = "THROWN "; //$NON-NLS-1$
private static final String SEPARATOR_SPACE = " "; //$NON-NLS-1$
private static final String PARENTHESIS_OPEN = "("; //$NON-NLS-1$
private static final String PARENTHESIS_CLOSE = ")"; //$NON-NLS-1$
private static final String SEPARATOR_METHOD = "#"; //$NON-NLS-1$
private static final String PREFIX_CATCHING = "CAUGHT "; //$NON-NLS-1$
//The shared instance.
public static OCLPlugin INSTANCE = new OCLPlugin();
//The shared Eclipse plug-in instance
private static Implementation plugin;
/**
* In stand-alone use, whether all tracing is turned on.
* This is compatible with the usage of 1.2 and earlier.
* @since 1.3
*/
private static boolean traceAll = Boolean
.getBoolean("org.eclipse.ocl.debug"); //$NON-NLS-1$;
/**
* The constructor.
*/
public OCLPlugin() {
super(new ResourceLocator[0]);
}
public static String getPluginId() {
return (getPlugin() != null)
? getPlugin().getBundle().getSymbolicName()
: "org.eclipse.ocl"; // last known bundle ID //$NON-NLS-1$
}
// implements the inherited method
@Override
public ResourceLocator getPluginResourceLocator() {
return plugin;
}
/**
* Obtains the Eclipse plug-in that I implement.
*
* @return my Eclipse plug-in self
*/
public static Implementation getPlugin() {
return plugin;
}
/**
* Returns the shared instance.
*/
public static OCLPlugin getInstance() {
return INSTANCE;
}
/**
* The definition of the Eclipse plug-in flavour of this EMF plug-in.
*
* @author Christian W. Damus (cdamus)
*/
public static class Implementation
extends EMFPlugin.EclipsePlugin {
/**
* Initializes me with my Eclipse plug-in descriptor.
*/
public Implementation() {
super();
// Remember the static instance.
//
OCLPlugin.plugin = this;
}
@Override
public void start(BundleContext context)
throws Exception {
super.start(context);
EnvironmentRegistryImpl envreg = ((EnvironmentRegistryImpl) Environment.Registry.INSTANCE);
envreg.new RegistryReader(getInstance()).readRegistry();
}
}
/**
* Traces the catching of the specified throwable in the specified method of
* the specified class.
*
* @param clazz
* The class in which the throwable is being caught.
* @param methodName
* The name of the method in which the throwable is being caught.
* @param throwable
* The throwable that is being caught.
*
*/
public static void catching(Class clazz, String methodName,
Throwable throwable) {
if (shouldTrace(OCLDebugOptions.EXCEPTIONS_CATCHING)) {
trace(PREFIX_CATCHING + throwable.getMessage() + SEPARATOR_SPACE
+ PARENTHESIS_OPEN + clazz.getName() + SEPARATOR_METHOD
+ methodName + PARENTHESIS_CLOSE);
throwable.printStackTrace(System.err);
}
}
public static void throwing(Class clazz, String methodName,
Throwable throwable) {
if (shouldTrace(OCLDebugOptions.EXCEPTIONS_THROWING)) {
trace(PREFIX_THROWING + throwable.getMessage() + SEPARATOR_SPACE
+ PARENTHESIS_OPEN + clazz.getName() + SEPARATOR_METHOD
+ methodName + PARENTHESIS_CLOSE);
throwable.printStackTrace(System.err);
}
}
public static boolean shouldTrace(String option) {
if (getPlugin() != null) {
if (getPlugin().isDebugging()) {
return Boolean.TRUE.toString().equalsIgnoreCase(
Platform.getDebugOption(option));
}
return false;
}
return traceAll || Boolean.getBoolean(option);
}
/**
* Emits the specified message to the trace log. It is the caller's
* responsibility to ensure that the appropriate tracing option
* is enabled.
*
* @param message a message
*
* @see #shouldTrace(String)
*/
public static void trace(String message) {
System.out.println("[OCL] " + message); //$NON-NLS-1$
}
/**
* Generates an error log for the specified plug-in, with the specified
* status code, message.
*
* @param code
* The status code for the log.
* @param message
* The message for the log.
*
*/
public static void error(int code, String message) {
error(code, message, null);
}
/**
* Generates an error log for the specified plug-in, with the specified
* status code, message, and throwable.
*
* @param code
* The status code for the log.
* @param message
* The message for the log.
* @param throwable
* The throwable for the log.
*
*/
public static void error(int code, String message, Throwable throwable) {
log(Diagnostic.ERROR, code, message, throwable);
}
/**
* Generates an information log for the specified plug-in, with the
* specified message. Uses OK as status code.
*
* @param message
* The message for the log.
*
*/
public static void info(String message) {
info(OCLStatusCodes.OK, message);
}
/**
* Generates an information log for the specified plug-in, with the
* specified status code, message.
*
* @param code
* The status code for the log.
* @param message
* The message for the log.
*
*/
public static void info(int code, String message) {
info(code, message, null);
}
/**
* Generates an information log for the specified plug-in, with the
* specified status code, message, and throwable.
*
* @param code
* The status code for the log.
* @param message
* The message for the log.
* @param throwable
* The throwable for the log.
*
*/
public static void info(int code, String message, Throwable throwable) {
log(Diagnostic.INFO, code, message, throwable);
}
/**
* Generates a warning log for the specified plug-in, with the specified
* status code, message.
*
* @param code
* The status code for the log.
* @param message
* The message for the log.
*
*/
public static void warning(int code, String message) {
warning(code, message, null);
}
/**
* Generates a warning log for the specified plug-in, with the specified
* status code, message, and throwable.
*
* @param code
* The status code for the log.
* @param message
* The message for the log.
* @param throwable
* The throwable for the log.
*
*/
public static void warning(int code, String message, Throwable throwable) {
log(Diagnostic.WARNING, code, message, throwable);
}
public static void log(int severity, int code, String message,
Throwable throwable) {
//
// Status ctor requires a non-null message
String msg = message == null
? "" //$NON-NLS-1$
: message;
try {
if (getPlugin() != null) {
// Eclipse environment
getPlugin().log(
new Status(severity, getPluginId(), code, msg, throwable));
} else {
// not in the Eclipse environment
if (shouldTrace(OCLDebugOptions.DEBUG)) {
switch (code) {
case Diagnostic.WARNING :
System.err.print("WARNING "); //$NON-NLS-1$
break;
case Diagnostic.ERROR :
case Diagnostic.CANCEL :
System.err.print("ERROR "); //$NON-NLS-1$
break;
default :
// don't output INFO or OK messages
return;
}
System.err.print(code);
System.err.print(": "); //$NON-NLS-1$
System.err.println(message);
if (throwable != null) {
throwable.printStackTrace(System.err);
}
}
}
} catch (IllegalArgumentException iae) {
catching(OCLPlugin.class, "log", iae);//$NON-NLS-1$
}
}
}
