Java Code Examples for org.apache.flink.core.memory.DataOutputView#write()

@Override
public void copy(DataInputView source, DataOutputView target) throws IOException {
	int val = source.readUnsignedByte();
	target.writeByte(val);
	
	if (val >= MAX_BIT) {
		int shift = 7;
		int curr;
		val = val & 0x7f;
		while ((curr = source.readUnsignedByte()) >= MAX_BIT) {
			target.writeByte(curr);
			val |= (curr & 0x7f) << shift;
			shift += 7;
		}
		target.writeByte(curr);
		val |= curr << shift;
	}
	
	target.write(source, val);
}
 

@Override
public void write(final DataOutputView out) throws IOException {
	int len = this.len;

	// write the length, variable-length encoded
	while (len >= HIGH_BIT) {
		out.write(len | HIGH_BIT);
		len >>>= 7;
	}
	out.write(len);

	// write the char data, variable length encoded
	for (int i = 0; i < this.len; i++) {
		int c = this.value[i];

		while (c >= HIGH_BIT) {
			out.write(c | HIGH_BIT);
			c >>>= 7;
		}
		out.write(c);
	}
}
 

@Override
public void serialize(VoidNamespace record, DataOutputView target) throws IOException {
	// Make progress in the stream, write one byte.
	//
	// We could just skip writing anything here, because of the way this is
	// used with the state backends, but if it is ever used somewhere else
	// (even though it is unlikely to happen), it would be a problem.
	target.write(0);
}
 

@Override
public void copy(DataInputView source, DataOutputView target) throws IOException {
	if (Decimal.isCompact(precision)) {
		target.writeLong(source.readLong());
	} else {
		int len = source.readInt();
		target.writeInt(len);
		target.write(source, len);
	}
}
 

protected static void copyInternal(DataInputView source, DataOutputView target) throws IOException {
	int count = source.readInt();
	target.writeInt(count);

	int bytes = ELEMENT_LENGTH_IN_BYTES * count;
	target.write(source, bytes);
}
 

@Override
public void write(DataOutputView out) throws IOException {
	out.writeInt(val);
	out.writeInt(size);
	
	for (int i = 0; i < size; i++) {
		out.write((byte) (i));
	}
}
 

@Override
public void serialize(VoidNamespace record, DataOutputView target) throws IOException {
	// Make progress in the stream, write one byte.
	//
	// We could just skip writing anything here, because of the way this is
	// used with the state backends, but if it is ever used somewhere else
	// (even though it is unlikely to happen), it would be a problem.
	target.write(0);
}
 

public static boolean copyBigInteger(DataInputView source, DataOutputView target) throws IOException {
	final int len = source.readInt();
	target.writeInt(len);
	if (len > 4) {
		target.write(source, len - 4);
	}
	return len == 0; // returns true if the copied record was null
}
 

@Override
public void write(DataOutputView out) throws IOException {
	out.writeInt(val);
	out.writeInt(size);
	
	for (int i = 0; i < size; i++) {
		out.write((byte) (i));
	}
}
 

@Override
public void copy(DataInputView source, DataOutputView target) throws IOException {
	int len = source.readInt();
	target.writeInt(len);
	byte[] bytes = new byte[len];
	source.read(bytes);
	target.write(bytes);
}
 

/**
 * Copy a binaryRow which stored in paged input view to output view.
 *
 * @param source source paged input view where the binary row stored
 * @param target the target output view.
 */
public void copyFromPagesToView(
	AbstractPagedInputView source, DataOutputView target) throws IOException {
	checkSkipReadForFixLengthPart(source);
	int length = source.readInt();
	target.writeInt(length);
	target.write(source, length);
}
 

@Override
protected void writeKeyAndNamespaceSerializers(DataOutputView out) throws IOException {
	// the pre-versioned format only serializes the serializers, without their configuration snapshots
	try (ByteArrayOutputStreamWithPos stream = new ByteArrayOutputStreamWithPos()) {
		InstantiationUtil.serializeObject(stream, keySerializer);
		InstantiationUtil.serializeObject(stream, namespaceSerializer);

		out.write(stream.getBuf(), 0, stream.getPosition());
	}
}
 

protected static void copyInternal(DataInputView source, DataOutputView target) throws IOException {
	int count = source.readInt();
	target.writeInt(count);

	int bytes = ELEMENT_LENGTH_IN_BYTES * count;
	target.write(source, bytes);
}
 

@Override
public void copy(DataInputView source, DataOutputView target) throws IOException {
	final int len = source.readInt();
	target.writeInt(len);
	target.write(source, len);
}
 

/**
 * Write value from bytes.
 */
private void writeValue(long valuePointer, DataOutputView outputView) throws IOException {
	outputView.write(owningStateMap.helpGetBytesForState(valuePointer));
}
 

@Override
public void write(DataOutputView out) throws IOException {
	out.write(bytes);
}
 

@Override
public void serialize(Void record, DataOutputView target) throws IOException {
	// make progress in the stream, write one byte
	target.write(0);
}
 

@Override
public void copy(DataInputView source, DataOutputView target) throws IOException {
	target.write(source, 8);
}
 

@Override
public void write(DataOutputView out) throws IOException {
	out.write(VERSIONED_IDENTIFIER);
	super.write(out);
}
 

@Override
public void write(DataOutputView out) throws IOException {
	out.writeInt(this.data.length);
	out.write(this.data);
}