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

The following examples show how to use org.apache.flink.core.memory.DataOutputView#write() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: StringValue.java    From flink with Apache License 2.0 6 votes vote down vote up
@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);
	}
}
 
Example 2
Source File: Record.java    From flink with Apache License 2.0 6 votes vote down vote up
@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);
}
 
Example 3
Source File: ShortValueArray.java    From flink with Apache License 2.0 5 votes vote down vote up
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);
}
 
Example 4
Source File: InternalTimersSnapshotReaderWriters.java    From flink with Apache License 2.0 5 votes vote down vote up
@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());
	}
}
 
Example 5
Source File: BinaryRowDataSerializer.java    From flink with Apache License 2.0 5 votes vote down vote up
/**
 * 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);
}
 
Example 6
Source File: StringSerializer.java    From flink with Apache License 2.0 5 votes vote down vote up
@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);
}
 
Example 7
Source File: ExternalSortLargeRecordsITCase.java    From Flink-CEPplus with Apache License 2.0 5 votes vote down vote up
@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));
	}
}
 
Example 8
Source File: VoidNamespaceSerializer.java    From flink with Apache License 2.0 5 votes vote down vote up
@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);
}
 
Example 9
Source File: BigIntSerializer.java    From flink with Apache License 2.0 5 votes vote down vote up
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
}
 
Example 10
Source File: VoidNamespaceSerializer.java    From flink with Apache License 2.0 5 votes vote down vote up
@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);
}
 
Example 11
Source File: ExternalSortLargeRecordsITCase.java    From flink with Apache License 2.0 5 votes vote down vote up
@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));
	}
}
 
Example 12
Source File: IntValueArray.java    From flink with Apache License 2.0 5 votes vote down vote up
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);
}
 
Example 13
Source File: DecimalSerializer.java    From flink with Apache License 2.0 5 votes vote down vote up
@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);
	}
}
 
Example 14
Source File: CopyOnWriteSkipListStateMapSnapshot.java    From flink with Apache License 2.0 4 votes vote down vote up
/**
 * Write value from bytes.
 */
private void writeValue(long valuePointer, DataOutputView outputView) throws IOException {
	outputView.write(owningStateMap.helpGetBytesForState(valuePointer));
}
 
Example 15
Source File: ByteArrayType.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up
@Override
public void write(DataOutputView out) throws IOException {
	out.writeInt(this.data.length);
	out.write(this.data);
}
 
Example 16
Source File: PostVersionedIOReadableWritable.java    From flink with Apache License 2.0 4 votes vote down vote up
@Override
public void write(DataOutputView out) throws IOException {
	out.write(VERSIONED_IDENTIFIER);
	super.write(out);
}
 
Example 17
Source File: DoubleValue.java    From flink with Apache License 2.0 4 votes vote down vote up
@Override
public void copy(DataInputView source, DataOutputView target) throws IOException {
	target.write(source, 8);
}
 
Example 18
Source File: BytePrimitiveArraySerializer.java    From flink with Apache License 2.0 4 votes vote down vote up
@Override
public void copy(DataInputView source, DataOutputView target) throws IOException {
	final int len = source.readInt();
	target.writeInt(len);
	target.write(source, len);
}
 
Example 19
Source File: RecordWriterTest.java    From flink with Apache License 2.0 4 votes vote down vote up
@Override
public void write(DataOutputView out) throws IOException {
	out.write(bytes);
}
 
Example 20
Source File: VoidSerializer.java    From Flink-CEPplus with Apache License 2.0 4 votes vote down vote up
@Override
public void serialize(Void record, DataOutputView target) throws IOException {
	// make progress in the stream, write one byte
	target.write(0);
}