org.apache.commons.javaflow.spi.CompositeTransformer Maven / Gradle / Ivy

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/**
 * 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.
 */
package org.apache.commons.javaflow.spi;


/**
 * {@link ResourceTransformer} whose transformation
 * is defined in terms of multiple {@link ResourceTransformer}s.
 *
 * @author Kohsuke Kawaguchi
 */
public class CompositeTransformer implements ResourceTransformer {
    final private ResourceTransformer[] transformers;

    public CompositeTransformer(final ResourceTransformer[] transformers) {
        this.transformers = transformers;
    }

    public byte[] transform(byte[] image) {
        for (int i = 0; i < transformers.length; i++) {
            final byte[] result = transformers[i].transform(image);
            if (null != result) {
            	image = result;
            }
        }
        return image;
    }
}