PackWriter.java

/*
 * Copyright 2012 b1.org                                                   
 *                                                                         
 * Licensed 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.
 */

package org.b1.pack.api.writer;

import java.io.IOException;
import java.util.ServiceLoader;

public abstract class PackWriter {

    public abstract void write(WriterProvider provider) throws IOException;

    protected abstract boolean isFormatSupported(String format);

    public static PackWriter getInstance(String format) {
        for (PackWriter writer : ServiceLoader.load(PackWriter.class)) {
            if (writer.isFormatSupported(format)) return writer;
        }
        throw new IllegalArgumentException("Unsupported format: " + format);
    }
}