package java.text;
/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// from gwtx project

/**
 * Limited implementation of MessageFormat using JSNI. Only supports string replacement, and not
 * date or number formatting for arguments.
 * @author <a href="mailto:nicolas@apache.org">Nicolas De loof</a>
 */
public class MessageFormat
  //  extends Format
{
    private String pattern;

    public MessageFormat( String pattern )
    {
        applyPattern( pattern );
    }

    public void applyPattern( String pattern )
    {
        this.pattern = pattern;
    }

    public static String format( String pattern, Object... arguments )
    {
        return doFormat( pattern, arguments );
    }

    public final String format( Object obj )
    {
        if ( obj instanceof Object[] )
        {
            return doFormat( pattern, (Object[]) obj );
        }
        return doFormat( pattern, new Object[] { obj } );
    }

    private static String doFormat( String s, Object[] arguments )
    {
        // A very simple implementation of format
        int i = 0;
        while (i < arguments.length)
        {
            String delimiter = "{" + i + "}";
            while( s.contains( delimiter ) )
            {
                s = s.replace( delimiter, String.valueOf( arguments[i] ) );
            }
            i++;
        }
        return s;
    }
}