001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.juneau.examples.parser;
018
019import java.awt.image.*;
020import java.io.*;
021
022import javax.imageio.*;
023
024import org.apache.juneau.*;
025import org.apache.juneau.parser.*;
026
027/**
028 * Example parser that converts byte streams to {@link BufferedImage} objects.
029 *
030 * <h5 class='section'>See Also:</h5><ul>
031 *    <li class='link'><a class="doclink" href="https://juneau.apache.org/docs/topics/Marshalling">Marshalling</a>
032 * </ul>
033 */
034@SuppressWarnings("javadoc")
035public class ImageParser extends InputStreamParser {
036
037   public ImageParser() {
038      super(create().consumes("image/png,image/jpg"));
039   }
040
041   @Override /* Parser */
042   @SuppressWarnings("unchecked")
043   public <T> T doParse(ParserSession session, ParserPipe pipe, ClassMeta<T> type) throws IOException, ParseException {
044      try (InputStream is = pipe.getInputStream()) {
045         BufferedImage image = ImageIO.read(is);
046         return (T)image;
047      }
048   }
049}