ch.takoyaki.email.html.client.utils.StringFormatter.java Source code

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Here is the source code for ch.takoyaki.email.html.client.utils.StringFormatter.java

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/*******************************************************************************
 * Copyright (c) 2013 takoyaki.ch.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v3.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/gpl.html
 * 
 * Contributors:
 *     takoyaki.ch - Initial version
 ******************************************************************************/
// from SO
package ch.takoyaki.email.html.client.utils;

import com.google.gwt.core.client.JsArrayString;

public abstract class StringFormatter {
    public static String format(final String format, final Object... args) {
        if (null == args || 0 == args.length)
            return format;
        JsArrayString array = newArray();
        for (Object arg : args) {
            array.push(String.valueOf(arg)); // TODO: smarter conversion?
        }
        return nativeFormat(format, array);
    }

    private static native JsArrayString newArray()/*-{
                                                  return [];
                                                  }-*/;

    private static native String nativeFormat(final String format, final JsArrayString args)/*-{
                                                                                            return format.replace(/{(\d+)}/g, function(match, number) {
                                                                                            return typeof args[number] != 'undefined' ? args[number] : match;
                                                                                            });
                                                                                            }-*/;
}