Esempio n. 1
0
 public static BigInteger readBigInteger(DataInputView source) throws IOException {
   final int len = source.readInt();
   if (len < 4) {
     switch (len) {
       case 0:
         return null;
       case 1:
         return BigInteger.ZERO;
       case 2:
         return BigInteger.ONE;
       case 3:
         return BigInteger.TEN;
     }
   }
   final byte[] bytes = new byte[len - 4];
   source.read(bytes);
   return new BigInteger(bytes);
 }
Esempio n. 2
0
    /**
     * Constructs a new {@code Context} by reading from a {@link DataInputView} that contains a
     * serialized context that we wrote in {@link
     * #writeToState(StateBackend.CheckpointStateOutputView)}
     */
    @SuppressWarnings("unchecked")
    protected Context(DataInputView in, ClassLoader userClassloader) throws Exception {
      this.key = keySerializer.deserialize(in);
      this.window = windowSerializer.deserialize(in);
      this.watermarkTimer = in.readLong();
      this.processingTimeTimer = in.readLong();

      int stateSize = in.readInt();
      byte[] stateData = new byte[stateSize];
      in.read(stateData);
      state = InstantiationUtil.deserializeObject(stateData, userClassloader);

      this.windowBuffer = windowBufferFactory.create();
      int numElements = in.readInt();
      MultiplexingStreamRecordSerializer<IN> recordSerializer =
          new MultiplexingStreamRecordSerializer<>(inputSerializer);
      for (int i = 0; i < numElements; i++) {
        windowBuffer.storeElement(recordSerializer.deserialize(in).<IN>asRecord());
      }
    }