Java Code Examples for org.apache.flink.core.memory.DataOutputViewStreamWrapper#close()

The following examples show how to use org.apache.flink.core.memory.DataOutputViewStreamWrapper#close() . 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: StringValueSerializationTest.java From Flink-CEPplus with Apache License 2.0

6 votes

public static void testSerialization(String[] values) throws IOException {
	ByteArrayOutputStream baos = new ByteArrayOutputStream(4096);
	DataOutputViewStreamWrapper serializer = new DataOutputViewStreamWrapper(baos);
	
	for (String value : values) {
		StringValue sv = new StringValue(value);
		sv.write(serializer);
	}
	
	serializer.close();
	baos.close();
	
	ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
	DataInputViewStreamWrapper deserializer = new DataInputViewStreamWrapper(bais);
	
	int num = 0;
	while (bais.available() > 0) {
		StringValue deser = new StringValue();
		deser.read(deserializer);
		
		assertEquals("DeserializedString differs from original string.", values[num], deser.getValue());
		num++;
	}
	
	assertEquals("Wrong number of deserialized values", values.length, num);
}

Example 2

Source File: IterationEventWithAggregators.java From Flink-CEPplus with Apache License 2.0

6 votes

@Override
public void write(DataOutputView out) throws IOException {
	int num = this.aggNames.length;
	out.writeInt(num);

	ByteArrayOutputStream boas = new ByteArrayOutputStream();
	DataOutputViewStreamWrapper bufferStream = new DataOutputViewStreamWrapper(boas);

	for (int i = 0; i < num; i++) {
		// aggregator name and type
		out.writeUTF(this.aggNames[i]);
		out.writeUTF(this.aggregates[i].getClass().getName());

		// aggregator value indirect as a byte array
		this.aggregates[i].write(bufferStream);
		bufferStream.flush();
		byte[] bytes = boas.toByteArray();
		out.writeInt(bytes.length);
		out.write(bytes);
		boas.reset();
	}
	bufferStream.close();
	boas.close();
}

Example 3

Source File: StringValueSerializationTest.java From flink with Apache License 2.0

6 votes

public static void testSerialization(String[] values) throws IOException {
	ByteArrayOutputStream baos = new ByteArrayOutputStream(4096);
	DataOutputViewStreamWrapper serializer = new DataOutputViewStreamWrapper(baos);
	
	for (String value : values) {
		StringValue sv = new StringValue(value);
		sv.write(serializer);
	}
	
	serializer.close();
	baos.close();
	
	ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
	DataInputViewStreamWrapper deserializer = new DataInputViewStreamWrapper(bais);
	
	int num = 0;
	while (bais.available() > 0) {
		StringValue deser = new StringValue();
		deser.read(deserializer);
		
		assertEquals("DeserializedString differs from original string.", values[num], deser.getValue());
		num++;
	}
	
	assertEquals("Wrong number of deserialized values", values.length, num);
}

Example 4

Source File: IterationEventWithAggregators.java From flink with Apache License 2.0

6 votes

@Override
public void write(DataOutputView out) throws IOException {
	int num = this.aggNames.length;
	out.writeInt(num);

	ByteArrayOutputStream boas = new ByteArrayOutputStream();
	DataOutputViewStreamWrapper bufferStream = new DataOutputViewStreamWrapper(boas);

	for (int i = 0; i < num; i++) {
		// aggregator name and type
		out.writeUTF(this.aggNames[i]);
		out.writeUTF(this.aggregates[i].getClass().getName());

		// aggregator value indirect as a byte array
		this.aggregates[i].write(bufferStream);
		bufferStream.flush();
		byte[] bytes = boas.toByteArray();
		out.writeInt(bytes.length);
		out.write(bytes);
		boas.reset();
	}
	bufferStream.close();
	boas.close();
}

Example 5

Source File: RheemFileOutputFormat.java From rheem with Apache License 2.0

6 votes

@Override
public void close() throws IOException {
    try {
        this.writer.close();
        DataOutputViewStreamWrapper o = this.outView;
        if (o != null) {
            o.close();
        }
    }
    finally {
        final FSDataOutputStream s = this.stream;
        if (s != null) {
            this.stream = null;
            s.close();
        }
    }
}

Example 6

Source File: StringValueSerializationTest.java From flink with Apache License 2.0

6 votes

public static void testSerialization(String[] values) throws IOException {
	ByteArrayOutputStream baos = new ByteArrayOutputStream(4096);
	DataOutputViewStreamWrapper serializer = new DataOutputViewStreamWrapper(baos);
	
	for (String value : values) {
		StringValue sv = new StringValue(value);
		sv.write(serializer);
	}
	
	serializer.close();
	baos.close();
	
	ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
	DataInputViewStreamWrapper deserializer = new DataInputViewStreamWrapper(bais);
	
	int num = 0;
	while (bais.available() > 0) {
		StringValue deser = new StringValue();
		deser.read(deserializer);
		
		assertEquals("DeserializedString differs from original string.", values[num], deser.getValue());
		num++;
	}
	
	assertEquals("Wrong number of deserialized values", values.length, num);
}

Example 7

Source File: IterationEventWithAggregators.java From flink with Apache License 2.0

6 votes

@Override
public void write(DataOutputView out) throws IOException {
	int num = this.aggNames.length;
	out.writeInt(num);

	ByteArrayOutputStream boas = new ByteArrayOutputStream();
	DataOutputViewStreamWrapper bufferStream = new DataOutputViewStreamWrapper(boas);

	for (int i = 0; i < num; i++) {
		// aggregator name and type
		out.writeUTF(this.aggNames[i]);
		out.writeUTF(this.aggregates[i].getClass().getName());

		// aggregator value indirect as a byte array
		this.aggregates[i].write(bufferStream);
		bufferStream.flush();
		byte[] bytes = boas.toByteArray();
		out.writeInt(bytes.length);
		out.write(bytes);
		boas.reset();
	}
	bufferStream.close();
	boas.close();
}

Example 8

Source File: BinaryOutputFormat.java From Flink-CEPplus with Apache License 2.0

5 votes

@Override
public void close() throws IOException {
	try {
		DataOutputViewStreamWrapper o = this.outView;
		if (o != null) {
			o.close();
		}
	}
	finally {
		super.close();
	}
}

Example 9

Source File: BinaryOutputFormat.java From flink with Apache License 2.0

5 votes

@Override
public void close() throws IOException {
	try {
		DataOutputViewStreamWrapper o = this.outView;
		if (o != null) {
			o.close();
		}
	}
	finally {
		super.close();
	}
}

Example 10

Source File: AbstractSiddhiOperator.java From flink-siddhi with Apache License 2.0

5 votes

private void checkpointRecordQueueState() throws Exception {
    final ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    final DataOutputViewStreamWrapper dataOutputView = new DataOutputViewStreamWrapper(byteArrayOutputStream);
    try {
        snapshotQueueState(this.priorityQueue, dataOutputView);
        this.queuedRecordsState.clear();
        this.queuedRecordsState.add(byteArrayOutputStream.toByteArray());
    } finally {
        dataOutputView.close();
        byteArrayOutputStream.close();
    }
}

Example 11

Source File: AbstractSiddhiOperator.java From bahir-flink with Apache License 2.0

5 votes

private void checkpointRecordQueueState() throws Exception {
    final ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
    final DataOutputViewStreamWrapper dataOutputView = new DataOutputViewStreamWrapper(byteArrayOutputStream);
    try {
        snapshotQueueState(this.priorityQueue, dataOutputView);
        this.queuedRecordsState.clear();
        this.queuedRecordsState.add(byteArrayOutputStream.toByteArray());
    } finally {
        dataOutputView.close();
        byteArrayOutputStream.close();
    }
}

Example 12

Source File: BinaryOutputFormat.java From flink with Apache License 2.0

5 votes

@Override
public void close() throws IOException {
	try {
		DataOutputViewStreamWrapper o = this.outView;
		if (o != null) {
			o.close();
		}
	}
	finally {
		super.close();
	}
}