Policy.java

/*******************************************************************************
 * Copyright (c) 2000, 2006 IBM Corporation 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 Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.core.resources.ant;

import java.text.MessageFormat;
import java.util.*;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;

public class Policy {
	private static final String bundleName= "org.eclipse.core.resources.ant.messages";//$NON-NLS-1$

	private static ResourceBundle bundle= ResourceBundle.getBundle(bundleName, Locale.getDefault());

	/**
	 * Lookup the message with the given ID in this catalog
	 */
	public static String bind(String id) {
		return bind(id, (String[])null);
	}

	public static IProgressMonitor monitorFor(IProgressMonitor monitor) {
		if (monitor == null)
			return new NullProgressMonitor();
		return monitor;
	}

	/**
	 * 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 });
	}

	/**
	 * Lookup the message with the given ID in this catalog and bind its substitution locations with
	 * the given string values.
	 */
	public static String bind(String id, String[] bindings) {
		if (id == null)
			return "No message available";//$NON-NLS-1$
		String message= null;
		try {
			message= bundle.getString(id);
		} catch (MissingResourceException e) {
			// If we got an exception looking for the message, fail gracefully by just returning
			// the id we were looking for.  In most cases this is semi-informative so is not too bad.
			return "Missing message: " + id + " in: " + bundleName;//$NON-NLS-1$ //$NON-NLS-2$
		}
		if (bindings == null)
			return message;
		return MessageFormat.format(message, bindings);
	}
}