org.apache.camel.processor.idempotent.cassandra

Class CassandraIdempotentRepository

java.lang.Object

org.apache.camel.support.service.BaseService

org.apache.camel.support.service.ServiceSupport

org.apache.camel.processor.idempotent.cassandra.CassandraIdempotentRepository

All Implemented Interfaces:

AutoCloseable, org.apache.camel.Service, org.apache.camel.ShutdownableService, org.apache.camel.spi.IdempotentRepository, org.apache.camel.StatefulService, org.apache.camel.SuspendableService

Direct Known Subclasses:

NamedCassandraIdempotentRepository

public class CassandraIdempotentRepository
extends org.apache.camel.support.service.ServiceSupport
implements org.apache.camel.spi.IdempotentRepository

Implementation of IdempotentRepository using Cassandra table to store message ids. Advice: use LeveledCompaction for this table and tune read/write consistency levels. Warning: Cassandra is not the best tool for queuing use cases See http://www.datastax.com/dev/blog/cassandra-anti-patterns-queues-and-queue-like-datasets

Field Summary

Fields inherited from class org.apache.camel.support.service.BaseService

BUILT, FAILED, INITIALIZED, INITIALIZING, lock, NEW, SHUTDOWN, SHUTTING_DOWN, STARTED, STARTING, status, STOPPED, STOPPING, SUSPENDED, SUSPENDING

Constructor Summary

Constructors

Constructor and Description
CassandraIdempotentRepository()
CassandraIdempotentRepository(com.datastax.oss.driver.api.core.CqlSession session)

Method Summary

Modifier and Type	Method and Description
boolean	add(String key)
void	clear()
boolean	confirm(String key)
boolean	contains(String key)
protected void	doStart()
protected void	doStop()
String[]	getPKColumns()
protected Object[]	getPKValues(String key)
String[]	getPrefixPKValues()
com.datastax.oss.driver.api.core.ConsistencyLevel	getReadConsistencyLevel()
com.datastax.oss.driver.api.core.CqlSession	getSession()
String	getTable()
Integer	getTtl()
com.datastax.oss.driver.api.core.ConsistencyLevel	getWriteConsistencyLevel()
protected void	initClearStatement()
protected void	initDeleteStatement()
protected void	initInsertStatement()
protected void	initSelectStatement()
protected boolean	isApplied(com.datastax.oss.driver.api.core.cql.ResultSet resultSet)
boolean	remove(String key)
void	setPKColumns(String... pkColumns)
void	setPrefixPKValues(String[] prefixPKValues)
void	setReadConsistencyLevel(com.datastax.oss.driver.api.core.ConsistencyLevel readConsistencyLevel)
void	setSession(com.datastax.oss.driver.api.core.CqlSession session)
void	setTable(String table)
void	setTtl(Integer ttl)
void	setWriteConsistencyLevel(com.datastax.oss.driver.api.core.ConsistencyLevel writeConsistencyLevel)

Methods inherited from class org.apache.camel.support.service.BaseService

build, doBuild, doFail, doInit, doLifecycleChange, doResume, doShutdown, doSuspend, fail, getStatus, init, isBuild, isInit, isNew, isRunAllowed, isShutdown, isStarted, isStarting, isStartingOrStarted, isStopped, isStopping, isStoppingOrStopped, isSuspended, isSuspending, isSuspendingOrSuspended, resume, shutdown, start, stop, suspend

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.camel.spi.IdempotentRepository

add, confirm, contains, remove

Methods inherited from interface org.apache.camel.Service

build, close, init, start, stop

Methods inherited from interface org.apache.camel.StatefulService

getStatus, isRunAllowed, isStarted, isStarting, isStopped, isStopping, isSuspending

Methods inherited from interface org.apache.camel.SuspendableService

isSuspended, resume, suspend

Methods inherited from interface org.apache.camel.ShutdownableService

shutdown

Constructor Detail

CassandraIdempotentRepository

public CassandraIdempotentRepository()

CassandraIdempotentRepository

public CassandraIdempotentRepository(com.datastax.oss.driver.api.core.CqlSession session)

Method Detail

isApplied

protected final boolean isApplied(com.datastax.oss.driver.api.core.cql.ResultSet resultSet)

getPKValues

protected Object[] getPKValues(String key)

doStart

protected void doStart()
                throws Exception

Overrides:

doStart in class org.apache.camel.support.service.BaseService

Throws:

Exception

doStop

protected void doStop()
               throws Exception

Overrides:

doStop in class org.apache.camel.support.service.BaseService

Throws:

Exception

initInsertStatement

protected void initInsertStatement()

add

public boolean add(String key)

Specified by:

add in interface org.apache.camel.spi.IdempotentRepository

initSelectStatement

protected void initSelectStatement()

contains

public boolean contains(String key)

Specified by:

contains in interface org.apache.camel.spi.IdempotentRepository

confirm

public boolean confirm(String key)

Specified by:

confirm in interface org.apache.camel.spi.IdempotentRepository

initDeleteStatement

protected void initDeleteStatement()

remove

public boolean remove(String key)

Specified by:

remove in interface org.apache.camel.spi.IdempotentRepository

initClearStatement

protected void initClearStatement()

clear

public void clear()

Specified by:

clear in interface org.apache.camel.spi.IdempotentRepository

getSession

public com.datastax.oss.driver.api.core.CqlSession getSession()

setSession

public void setSession(com.datastax.oss.driver.api.core.CqlSession session)

getTable

public String getTable()

setTable

public void setTable(String table)

getPKColumns

public String[] getPKColumns()

setPKColumns

public void setPKColumns(String... pkColumns)

getTtl

public Integer getTtl()

setTtl

public void setTtl(Integer ttl)

getWriteConsistencyLevel

public com.datastax.oss.driver.api.core.ConsistencyLevel getWriteConsistencyLevel()

setWriteConsistencyLevel

public void setWriteConsistencyLevel(com.datastax.oss.driver.api.core.ConsistencyLevel writeConsistencyLevel)

getReadConsistencyLevel

public com.datastax.oss.driver.api.core.ConsistencyLevel getReadConsistencyLevel()

setReadConsistencyLevel

public void setReadConsistencyLevel(com.datastax.oss.driver.api.core.ConsistencyLevel readConsistencyLevel)

getPrefixPKValues

public String[] getPrefixPKValues()

setPrefixPKValues

public void setPrefixPKValues(String[] prefixPKValues)