Examples of java.io.DataInputStream.readFully()

java.io.DataInputStream.readFully()
See the general contract of the readFully method of DataInput.
Bytes for this operation are read from the contained input stream. @param b the buffer into which the data is read. @exception EOFException if this input stream reaches the end beforereading all the bytes. @exception IOException the stream has been closed and the containedinput stream does not support reading after close, or another I/O error occurs. @see java.io.FilterInputStream#in

        InputStream is = data.getInputStream();
        DataInputStream dis = new DataInputStream(is);
        for(int i=0;i<n;i++) {
            blocks[i] = new byte[BLOCK_SIZE];
            if(i < n-1) {
                dis.readFully(blocks[i]);
            } else {
                int length = (int) (size - i*BLOCK_SIZE);
                dis.readFully(blocks[i], 0, length);
                // Now pad it ...
                blocks[i] = BucketTools.pad(blocks[i], BLOCK_SIZE, length);

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            blocks[i] = new byte[BLOCK_SIZE];
            if(i < n-1) {
                dis.readFully(blocks[i]);
            } else {
                int length = (int) (size - i*BLOCK_SIZE);
                dis.readFully(blocks[i], 0, length);
                // Now pad it ...
                blocks[i] = BucketTools.pad(blocks[i], BLOCK_SIZE, length);
            }
        }
        return blocks;

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      File hwrng = new File("/dev/hwrng");
      if(hwrng.exists() && hwrng.canRead())
        try {
          fis = new FileInputStream(hwrng);
          dis = new DataInputStream(fis);
          dis.readFully(buf);
          consumeBytes(buf);
          dis.readFully(buf);
          consumeBytes(buf);
          dis.close();
        } catch(Throwable t) {

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        try {
          fis = new FileInputStream(hwrng);
          dis = new DataInputStream(fis);
          dis.readFully(buf);
          consumeBytes(buf);
          dis.readFully(buf);
          consumeBytes(buf);
          dis.close();
        } catch(Throwable t) {
          Logger.normal(this, "Can't read /dev/hwrng even though exists and is readable: " + t, t);
        } finally {

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      // Read some bits from /dev/urandom
      try {
        fis = new FileInputStream("/dev/urandom");
        dis = new DataInputStream(fis);
        dis.readFully(buf);
        consumeBytes(buf);
        dis.readFully(buf);
        consumeBytes(buf);
      } catch(Throwable t) {
        Logger.normal(this, "Can't read /dev/urandom: " + t, t);

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      try {
        fis = new FileInputStream("/dev/urandom");
        dis = new DataInputStream(fis);
        dis.readFully(buf);
        consumeBytes(buf);
        dis.readFully(buf);
        consumeBytes(buf);
      } catch(Throwable t) {
        Logger.normal(this, "Can't read /dev/urandom: " + t, t);
        // We can't read it; let's skip /dev/random and seed from SecureRandom.generateSeed()
        canBlock = true;

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      if(canBlock)
        // Read some bits from /dev/random
        try {
          fis = new FileInputStream("/dev/random");
          dis = new DataInputStream(fis);
          dis.readFully(buf);
          consumeBytes(buf);
          dis.readFully(buf);
          consumeBytes(buf);
        } catch(Throwable t) {
          Logger.normal(this, "Can't read /dev/random: " + t, t);

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        try {
          fis = new FileInputStream("/dev/random");
          dis = new DataInputStream(fis);
          dis.readFully(buf);
          consumeBytes(buf);
          dis.readFully(buf);
          consumeBytes(buf);
        } catch(Throwable t) {
          Logger.normal(this, "Can't read /dev/random: " + t, t);
        } finally {
          Closer.close(dis);

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            for (int i = 0; i != input.length / 2; i++)
            {
                bytes[i] = (byte)dIn.read();
            }
            dIn.readFully(bytes, input.length / 2, bytes.length - input.length / 2);
        }
        catch (Exception e)
        {
            fail("" + algorithm + " failed decryption - " + e.toString());
        }

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            for (int i = 0; i != input.length / 2; i++)
            {
                bytes[i] = (byte)dIn.read();
            }
            dIn.readFully(bytes, input.length / 2, bytes.length - input.length / 2);
        }
        catch (Exception e)
        {
            fail(alg + " failed encryption - " + e.toString());
        }

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