BrokenJpegImageDecoder.java

package com.nostra13.universalimageloader.sample.ext;

import com.nostra13.universalimageloader.core.decode.BaseImageDecoder;
import com.nostra13.universalimageloader.core.decode.ImageDecodingInfo;

import java.io.IOException;
import java.io.InputStream;

/**
 * @author Sergey Tarasevich (nostra13[at]gmail[dot]com)
 */
public class BrokenJpegImageDecoder extends BaseImageDecoder {

	public BrokenJpegImageDecoder(boolean loggingEnabled) {
		super(loggingEnabled);
	}

	@Override
	protected InputStream getImageStream(ImageDecodingInfo decodingInfo) throws IOException {
		InputStream stream = decodingInfo.getDownloader()
				.getStream(decodingInfo.getImageUri(), decodingInfo.getExtraForDownloader());
		return stream == null ? null : new JpegClosedInputStream(stream);
	}

	private class JpegClosedInputStream extends InputStream {

		private static final int JPEG_EOI_1 = 0xFF;
		private static final int JPEG_EOI_2 = 0xD9;

		private final InputStream inputStream;
		private int bytesPastEnd;

		private JpegClosedInputStream(InputStream inputStream) {
			this.inputStream = inputStream;
			bytesPastEnd = 0;
		}

		@Override
		public int read() throws IOException {
			int buffer = inputStream.read();
			if (buffer == -1) {
				if (bytesPastEnd > 0) {
					buffer = JPEG_EOI_2;
				} else {
					++bytesPastEnd;
					buffer = JPEG_EOI_1;
				}
			}

			return buffer;
		}
	}
}