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/*******************************************************************************
* Copyright (c) 2000, 2006 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.examples.filesystem;
import java.text.MessageFormat;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.OperationCanceledException;
/**
* This class is a clone of the Policy classes many Eclipse plugin use to
* provide NLSing of strings and aid in proper progress monitoring.
*/
public class Policy {
private static ResourceBundle bundle = null;
private static final String bundleName = "org.eclipse.team.examples.filesystem.messages"; //$NON-NLS-1$
/*
* Returns a resource bundle, creating one if it none is available.
*/
private static ResourceBundle getResourceBundle() {
// thread safety
ResourceBundle tmpBundle = bundle;
if (tmpBundle != null)
return tmpBundle;
// always create a new classloader to be passed in
// in order to prevent ResourceBundle caching
return bundle = ResourceBundle.getBundle(bundleName);
}
/**
* Lookup the message with the given ID in this catalog and bind its
* substitution locations with the given string.
*/
public static String bind(String id, String binding) {
return bind(id, new String[] { binding });
}
/**
* Lookup the message with the given ID in this catalog and bind its
* substitution locations with the given strings.
*/
public static String bind(String id, String binding1, String binding2) {
return bind(id, new String[] { binding1, binding2 });
}
/**
* Gets a string from the resource bundle. We don't want to crash because of a missing String.
* Returns the key if not found.
*/
public static String bind(String key) {
try {
return getResourceBundle().getString(key);
} catch (MissingResourceException e) {
return key;
} catch (NullPointerException e) {
return "!" + key + "!"; //$NON-NLS-1$ //$NON-NLS-2$
}
}
/**
* Gets a string from the resource bundle and binds it with the given arguments. If the key is
* not found, return the key.
*/
public static String bind(String key, Object[] args) {
try {
return MessageFormat.format(bind(key), args);
} catch (MissingResourceException e) {
return key;
} catch (NullPointerException e) {
return "!" + key + "!"; //$NON-NLS-1$ //$NON-NLS-2$
}
}
/**
* Progress monitor helpers
*/
public static void checkCanceled(IProgressMonitor monitor) {
if (monitor.isCanceled())
throw new OperationCanceledException();
}
public static IProgressMonitor monitorFor(IProgressMonitor monitor) {
if (monitor == null)
return new NullProgressMonitor();
return monitor;
}
}
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