Loads a file to a ByteBuffer. : Buffer « File « Android

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Android » File » Buffer 




Loads a file to a ByteBuffer.
 
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.ByteBuffer;

class Main {
  static final String defaultCharset = "UTF-8"// used if not found in header
                          // or meta charset
  private static final int bufferSize = 0x20000// ~130K.

  /**
   * Loads a file to a Document.
   
   @param in
   *            file to load
   @param charsetName
   *            character set of input
   @param baseUri
   *            base URI of document, to resolve relative links against
   @return Document
   @throws IOException
   *             on IO error
   */

  static ByteBuffer readToByteBuffer(InputStream inStreamthrows IOException {
    byte[] buffer = new byte[bufferSize];
    ByteArrayOutputStream outStream = new ByteArrayOutputStream(bufferSize);
    int read;
    while (true) {
      read = inStream.read(buffer);
      if (read == -1)
        break;
      outStream.write(buffer, 0, read);
    }
    ByteBuffer byteData = ByteBuffer.wrap(outStream.toByteArray());
    return byteData;
  }
}

   
  














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