org.apache.nifi.distributed.cache.client.adapter

Class OutboundAdapter

java.lang.Object

org.apache.nifi.distributed.cache.client.adapter.OutboundAdapter

public class OutboundAdapter
extends Object

Interface to write service request payloads to a Channel.

Field Summary

Fields

Modifier and Type	Field and Description
private ByteArrayOutputStream	bos Container for service request payload.
private DataOutputStream	dos Wrapper class for crafting service request payload.
private int	minimumVersion Minimum version required for the invocation of the specified API.
private static int	NO_MINIMUM_VERSION

Constructor Summary

Constructors

Constructor and Description
OutboundAdapter() Constructor.

Method Summary

Modifier and Type	Method and Description
int	getMinimumVersion()
OutboundAdapter	minimumVersion(int minimumVersion)
byte[]	toBytes() Assemble the request byte stream to be written to the service Channel.
OutboundAdapter	write(byte[] value) Write bytes to the service request payload.
OutboundAdapter	write(Collection<byte[]> values) Write bytes to the service request payload.
OutboundAdapter	write(int value) Write an integer to the service request payload.
OutboundAdapter	write(long value) Write a long to the service request payload.
OutboundAdapter	write(String value) Write a string to the service request payload.
<T> OutboundAdapter	write(T value, Serializer<T> serializer) Write an arbitrary value to the service request payload, using the provided serializer.

Methods inherited from class java.lang.Object

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

Field Detail

NO_MINIMUM_VERSION

private static final int NO_MINIMUM_VERSION

See Also:

Constant Field Values

minimumVersion

private int minimumVersion

Minimum version required for the invocation of the specified API.

bos

private final ByteArrayOutputStream bos

Container for service request payload.

dos

private final DataOutputStream dos

Wrapper class for crafting service request payload.

Constructor Detail

OutboundAdapter

public OutboundAdapter()

Constructor.

Method Detail

getMinimumVersion

public int getMinimumVersion()

minimumVersion

public OutboundAdapter minimumVersion(int minimumVersion)

write

public OutboundAdapter write(int value)
                      throws IOException

Write an integer to the service request payload.

Parameters:

value - the value to be written

Returns:

this object (allow chaining of calls to assemble payload)

Throws:

IOException - on write failure

write

public OutboundAdapter write(long value)
                      throws IOException

Write a long to the service request payload.

Parameters:

value - the value to be written

Returns:

this object (allow chaining of calls to assemble payload)

Throws:

IOException - on write failure

write

public OutboundAdapter write(String value)
                      throws IOException

Write a string to the service request payload.

Parameters:

value - the value to be written

Returns:

this object (allow chaining of calls to assemble payload)

Throws:

IOException - on write failure

write

public OutboundAdapter write(byte[] value)
                      throws IOException

Write bytes to the service request payload.

Parameters:

value - the bytes to be written

Returns:

this object (allow chaining of calls to assemble payload)

Throws:

IOException - on write failure

write

public OutboundAdapter write(Collection<byte[]> values)
                      throws IOException

Write bytes to the service request payload.

Parameters:

values - the bytes to be written

Returns:

this object (allow chaining of calls to assemble payload)

Throws:

IOException - on write failure

write

public <T> OutboundAdapter write(T value,
                                 Serializer<T> serializer)
                          throws IOException

Write an arbitrary value to the service request payload, using the provided serializer.

Parameters:

value - the value to be written

serializer - the method by which the value is to be serialized

Returns:

this object (allow chaining of calls to assemble payload)

Throws:

IOException - on write failure

toBytes

public byte[] toBytes()
               throws IOException

Assemble the request byte stream to be written to the service Channel.

Returns:

the request bytes to be written

Throws:

IOException - on write failure