Package org.hobbit.core.rabbit

Class DataSenderImpl

java.lang.Object

org.hobbit.core.rabbit.DataSenderImpl

All Implemented Interfaces:

Closeable, AutoCloseable, DataSender

public class DataSenderImpl
extends Object
implements DataSender

Implementation of the DataSender interface.

Use the internal DataSenderImpl.Builder class for creating instances of the DataSenderImpl class. Note that the created DataSenderImpl will either use a given RabbitQueue or create a new one. In both cases the receiver will become the owner of the queue, i.e., if the DataSenderImpl instance is closed the queue will be closed as well.

Note that choosing a message buffer size smaller than DEFAULT_MESSAGE_BUFFER_SIZE=1000 might lead the sender to get stuck since confirmations might be sent rarely by the RabbitMQ broker.

Author:

Michael Röder (roeder@informatik.uni-leipzig.de)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DataSenderImpl.Builder
protected class	DataSenderImpl.DataSenderConfirmHandler
protected static class	DataSenderImpl.Message

Field Summary

Fields

Modifier and Type	Field	Description
private final DataSenderImpl.DataSenderConfirmHandler	confirmHandler
private static final int	DEFAULT_DELIVERY_MODE
private static final int	DEFAULT_MESSAGE_BUFFER_SIZE
private final int	deliveryMode
private static final org.slf4j.Logger	LOGGER
private RabbitQueue	queue

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DataSenderImpl(RabbitQueue queue, int deliveryMode, int messageConfirmBuffer)

Method Summary

Modifier and Type	Method	Description
static DataSenderImpl.Builder	builder()	Returns a newly created DataSenderImpl.Builder.
void	close()
void	closeWhenFinished()	A blocking method that closes the sender when its work is done, i.e., all messages have been consumed by receivers from the queue.
void	sendData(byte[] data)	Send the given data to the queue.
protected void	sendData(byte[] data, com.rabbitmq.client.AMQP.BasicProperties.Builder probBuilder)
protected void	sendData(com.rabbitmq.client.AMQP.BasicProperties properties, byte[] data)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

LOGGER

private static final org.slf4j.Logger LOGGER

DEFAULT_MESSAGE_BUFFER_SIZE

private static final int DEFAULT_MESSAGE_BUFFER_SIZE

See Also:

• Constant Field Values

DEFAULT_DELIVERY_MODE

private static final int DEFAULT_DELIVERY_MODE

See Also:

• Constant Field Values

queue

private RabbitQueue queue

deliveryMode

private final int deliveryMode

confirmHandler

private final DataSenderImpl.DataSenderConfirmHandler confirmHandler

Constructor Details

DataSenderImpl

protected DataSenderImpl(RabbitQueue queue,
 int deliveryMode,
 int messageConfirmBuffer)

Method Details

sendData

public void sendData(byte[] data)
              throws IOException

Description copied from interface: DataSender

Send the given data to the queue.

Specified by:

sendData in interface DataSender

Parameters:

data - the data that should be sent

Throws:

IOException - if an exception occurs during the communication with the queue

sendData

protected void sendData(byte[] data,
 com.rabbitmq.client.AMQP.BasicProperties.Builder probBuilder)
                 throws IOException

Throws:

IOException

sendData

protected void sendData(com.rabbitmq.client.AMQP.BasicProperties properties,
 byte[] data)
                 throws IOException

Throws:

IOException

closeWhenFinished

public void closeWhenFinished()

Description copied from interface: DataSender

A blocking method that closes the sender when its work is done, i.e., all messages have been consumed by receivers from the queue.

Specified by:

closeWhenFinished in interface DataSender

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

builder

public static DataSenderImpl.Builder builder()

Returns a newly created DataSenderImpl.Builder.

Returns:

a new DataSenderImpl.Builder instance