Android Open Source - security-cam Flushed Input Stream

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License

The source code is released under:

MIT License

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Java Source Code

package berlin.reiche.securitas.util;
/*from w ww  . j a va  2 s. c  om*/
import java.io.FilterInputStream;
import java.io.IOException;
import java.io.InputStream;

import android.graphics.BitmapFactory;

/**
 * There is a bug in the {@link BitmapFactory#decodeStream(InputStream)}
 * implementation. The problem occurs on some JPG files on a slow or hanging
 * connection.
 * 
 * This implementation skips the exact number of bytes provided, unless it
 * reaches EOF.
 * 
 * @see <a href="http://code.google.com/p/android/issues/detail?id=6066">
 *      http://code.google.com/p/android/issues/detail?id=6066</a>
 * 
 * @author Konrad Reiche
 * 
 */
public class FlushedInputStream extends FilterInputStream {

  /**
   * Default constructor.
   * 
   * @param inputStream
   *            the input stream to be wrapped.
   */
  public FlushedInputStream(InputStream inputStream) {
    super(inputStream);
  }

  /**
   * Skips {@code byteCount} bytes in this stream or until EOF is reached.
   * 
   * @see java.io.FilterInputStream#skip(long)
   */
  @Override
  public long skip(long byteCount) throws IOException {
    long totalBytesSkipped = 0L;
    while (totalBytesSkipped < byteCount) {
      long bytesSkipped = in.skip(byteCount - totalBytesSkipped);
      if (bytesSkipped == 0L) {
        int b = read();
        if (b < 0) {
          // reached EOF
          break;
        } else {
          // read one byte
          bytesSkipped = 1;
        }
      }
      totalBytesSkipped += bytesSkipped;
    }
    return totalBytesSkipped;
  }

}

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