Package com.illumon.iris.db.v2.logaggregator

Class CommandHelper

java.lang.Object

com.illumon.iris.db.v2.logaggregator.CommandHelper

public class CommandHelper
extends Object

Define constants and methods for use in sending and receiving log aggregator messages. Format of a command message is

1. MAGIC_NUMBER (int)
2. VERSION_NUMBER
3. remaining message length in bytes (1 for just a command)
4. message (usually just a command byte)

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CommandHelper.CommandMessage	A LasCommandId and optional associated data.
static class	CommandHelper.LasCommandId	These commands are passed between BinaryStoreAggregatorWriter implementations and the LogAggregator service.
static class	CommandHelper.LasInnerCommandId	These commands are embedded in CommandHelper.LasCommandId.LAS_COMMAND command structures.
static class	CommandHelper.LogAggregatorMessage	Combine together a QueueCommandId, a message from the buffer pool, and a possible action to call.
static class	CommandHelper.QueueCommandId	These commands are passed from the BinaryLogSocketReader to the BinaryLogQueueSink

Constructor Summary

Constructors

Constructor	Description
CommandHelper()

Method Summary

Methods inherited from class java.lang.Object

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

Constructor Details

CommandHelper

public CommandHelper()