org.apache.flume.api

Class ThriftRpcClient

java.lang.Object

org.apache.flume.api.AbstractRpcClient

org.apache.flume.api.ThriftRpcClient

All Implemented Interfaces:

RpcClient

public class ThriftRpcClient
extends AbstractRpcClient

Field Summary

Fields

Modifier and Type	Field and Description
static String	BINARY_PROTOCOL
static String	COMPACT_PROTOCOL
static String	CONFIG_PROTOCOL Config param for the thrift protocol to use.

Fields inherited from class org.apache.flume.api.AbstractRpcClient

connectTimeout

Constructor Summary

Constructors

Constructor and Description
ThriftRpcClient()

Method Summary

Methods

Modifier and Type	Method and Description
void	append(Event event) Send a single Event to the associated Flume source.
void	appendBatch(List<Event> events) Send a list of events to the associated Flume source.
void	close() Immediately closes the client so that it may no longer be used.
protected void	configure(Properties properties) Configure the client using the given properties object.
int	getBatchSize() Returns the maximum number of events that may be batched at once by appendBatch().
protected org.apache.thrift.transport.TTransport	getTransport(org.apache.thrift.transport.TSocket tsocket)
boolean	isActive() Returns true if this object appears to be in a usable state, and it returns false if this object is permanently disabled.

Methods inherited from class java.lang.Object

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

Field Detail

CONFIG_PROTOCOL

public static final String CONFIG_PROTOCOL

Config param for the thrift protocol to use.

See Also:

Constant Field Values

BINARY_PROTOCOL

public static final String BINARY_PROTOCOL

See Also:

Constant Field Values

COMPACT_PROTOCOL

public static final String COMPACT_PROTOCOL

See Also:

Constant Field Values

Constructor Detail

ThriftRpcClient

public ThriftRpcClient()

Method Detail

getBatchSize

public int getBatchSize()

Description copied from interface: RpcClient

Returns the maximum number of events that may be batched at once by appendBatch().

Specified by:

getBatchSize in interface RpcClient

Overrides:

getBatchSize in class AbstractRpcClient

append

public void append(Event event)
            throws EventDeliveryException

Description copied from interface: RpcClient

Send a single Event to the associated Flume source.

This method blocks until the RPC returns or until the request times out.

Note: If this method throws an EventDeliveryException, there is no way to recover and the application must invoke RpcClient.close() on this object to clean up system resources.

Specified by:

append in interface RpcClient

Specified by:

append in class AbstractRpcClient

Throws:

EventDeliveryException - when an error prevents event delivery.

appendBatch

public void appendBatch(List<Event> events)
                 throws EventDeliveryException

Description copied from interface: RpcClient

Send a list of events to the associated Flume source.

This method blocks until the RPC returns or until the request times out.

It is strongly recommended that the number of events in the List be no more than RpcClient.getBatchSize(). If it is more, multiple RPC calls will be required, and the likelihood of duplicate Events being stored will increase.

Note: If this method throws an EventDeliveryException, there is no way to recover and the application must invoke RpcClient.close() on this object to clean up system resources.

Specified by:

appendBatch in interface RpcClient

Specified by:

appendBatch in class AbstractRpcClient

Parameters:

events - List of events to send

Throws:

EventDeliveryException - when an error prevents event delivery.

isActive

public boolean isActive()

Description copied from interface: RpcClient

Returns true if this object appears to be in a usable state, and it returns false if this object is permanently disabled.

If this method returns false, an application must call RpcClient.close() on this object to clean up system resources.

Specified by:

isActive in interface RpcClient

Specified by:

isActive in class AbstractRpcClient

close

public void close()
           throws FlumeException

Description copied from interface: RpcClient

Immediately closes the client so that it may no longer be used.

Note: This method MUST be called by applications when they are done using the RPC client in order to clean up resources.

Multi-threaded applications may want to gracefully stop making RPC calls before calling close(). Otherwise, they risk getting EventDeliveryException thrown from their in-flight calls when the underlying connection is disabled.

Specified by:

close in interface RpcClient

Specified by:

close in class AbstractRpcClient

Throws:

FlumeException

configure

protected void configure(Properties properties)
                  throws FlumeException

Description copied from class: AbstractRpcClient

Configure the client using the given properties object.

Specified by:

configure in class AbstractRpcClient

Throws:

FlumeException - if the client can not be configured using this method, or if the client was already configured once.

getTransport

protected org.apache.thrift.transport.TTransport getTransport(org.apache.thrift.transport.TSocket tsocket)
                                                       throws Exception

Throws:

Exception