BaseAudioFileReader.java

/*
 * Copyright 2011 The jFLAC Project
 *
 * 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.jflac.spi;

import javax.sound.sampled.AudioFileFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.UnsupportedAudioFileException;
import javax.sound.sampled.spi.AudioFileReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;

/**
 * Provides utility implementations for common methods of AudioFileReader
 */
public abstract class BaseAudioFileReader extends AudioFileReader {

	@Override
	public AudioFileFormat getAudioFileFormat(final URL url)
	throws UnsupportedAudioFileException, IOException {
        final InputStream inputStream = url.openStream();
        try {
            return getAudioFileFormat(inputStream);
        } catch (UnsupportedAudioFileException e) {
            inputStream.close();
            throw e;
        } catch (IOException e) {
            inputStream.close();
            throw e;
        }
	}

	@Override
	public AudioFileFormat getAudioFileFormat(final File file)
	throws UnsupportedAudioFileException, IOException {
        final InputStream inputStream = new FileInputStream(file);
        try {
            return getAudioFileFormat(inputStream);
        } catch (UnsupportedAudioFileException e) {
            inputStream.close();
            throw e;
        } catch (IOException e) {
            inputStream.close();
            throw e;
        }
	}

    @Override
    public AudioInputStream getAudioInputStream(final URL url)
    throws UnsupportedAudioFileException, IOException {
        final InputStream inputStream = url.openStream();
        try {
            return getAudioInputStream(inputStream);
        } catch (UnsupportedAudioFileException e) {
            inputStream.close();
            throw e;
        } catch (IOException e) {
            inputStream.close();
            throw e;
        }
    }

    @Override
    public AudioInputStream getAudioInputStream(final File file)
    throws UnsupportedAudioFileException, IOException {
        final InputStream inputStream = new FileInputStream(file);
        try {
            return getAudioInputStream(inputStream);
        } catch (UnsupportedAudioFileException e) {
            inputStream.close();
            throw e;
        } catch (IOException e) {
            inputStream.close();
            throw e;
        }
    }

}