com.singlestore.jdbc.client.impl

Class MultiPrimaryClient

java.lang.Object

com.singlestore.jdbc.client.impl.MultiPrimaryClient

All Implemented Interfaces:

com.singlestore.jdbc.client.Client, AutoCloseable

Direct Known Subclasses:

MultiPrimaryReplicaClient

public class MultiPrimaryClient
extends Object
implements com.singlestore.jdbc.client.Client

Handling connection failing automatic reconnection transparently when possible for multi-master Topology.

remark: would have been better using proxy, but for AOT compilation, avoiding to using not supported proxy class.

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	closed
protected Configuration	conf
protected com.singlestore.jdbc.client.Client	currentClient
protected long	deniedListTimeout
protected static ConcurrentMap<HostAddress,Long>	denyList
protected ReentrantLock	lock

Constructor Summary

Constructors

Constructor and Description
MultiPrimaryClient(Configuration conf, ReentrantLock lock)

Method Summary

Modifier and Type	Method and Description
void	abort(Executor executor)
void	close()
void	closePrepare(Prepare prepare)
protected com.singlestore.jdbc.client.Client	connectHost(boolean readOnly, boolean failFast) Trying connecting server.
List<com.singlestore.jdbc.client.Completion>	execute(com.singlestore.jdbc.message.ClientMessage message)
List<com.singlestore.jdbc.client.Completion>	execute(com.singlestore.jdbc.message.ClientMessage message, Statement stmt)
List<com.singlestore.jdbc.client.Completion>	execute(com.singlestore.jdbc.message.ClientMessage message, Statement stmt, int fetchSize, long maxRows, int resultSetConcurrency, int resultSetType, boolean closeOnCompletion)
List<com.singlestore.jdbc.client.Completion>	executePipeline(com.singlestore.jdbc.message.ClientMessage[] messages, Statement stmt, int fetchSize, long maxRows, int resultSetConcurrency, int resultSetType, boolean closeOnCompletion)
protected void	executeTransactionReplay(com.singlestore.jdbc.client.Client oldCli)
com.singlestore.jdbc.client.Context	getContext()
ExceptionFactory	getExceptionFactory()
HostAddress	getHostAddress()
int	getSocketTimeout()
int	getWaitTimeout()
boolean	isClosed()
boolean	isPrimary()
void	readStreamingResults(List<com.singlestore.jdbc.client.Completion> completions, int fetchSize, long maxRows, int resultSetConcurrency, int resultSetType, boolean closeOnCompletion)
protected void	reConnect()
void	reset()
void	setReadOnly(boolean readOnly)
void	setSocketTimeout(int milliseconds)
void	syncNewState(com.singlestore.jdbc.client.Client oldCli)

Methods inherited from class java.lang.Object

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

Field Detail

denyList

protected static final ConcurrentMap<HostAddress,Long> denyList

deniedListTimeout

protected final long deniedListTimeout

conf

protected final Configuration conf

closed

protected boolean closed

lock

protected final ReentrantLock lock

currentClient

protected com.singlestore.jdbc.client.Client currentClient

Constructor Detail

MultiPrimaryClient

public MultiPrimaryClient(Configuration conf,
                          ReentrantLock lock)
                   throws SQLException

Throws:

SQLException

Method Detail

connectHost

protected com.singlestore.jdbc.client.Client connectHost(boolean readOnly,
                                                         boolean failFast)
                                                  throws SQLException

Trying connecting server.

searching each connecting primary / replica connection not temporary denied until found one. searching in temporary denied host if not succeed, until reaching `retriesAllDown` attempts.

Parameters:

readOnly - must connect a replica / primary

failFast - must try only not denyed server

Returns:

a valid connection client

Throws:

SQLException - if not succeed to create a connection.

reConnect

protected void reConnect()
                  throws SQLException

Throws:

SQLException

executeTransactionReplay

protected void executeTransactionReplay(com.singlestore.jdbc.client.Client oldCli)
                                 throws SQLException

Throws:

SQLException

syncNewState

public void syncNewState(com.singlestore.jdbc.client.Client oldCli)
                  throws SQLException

Throws:

SQLException

execute

public List<com.singlestore.jdbc.client.Completion> execute(com.singlestore.jdbc.message.ClientMessage message)
                                                     throws SQLException

Specified by:

execute in interface com.singlestore.jdbc.client.Client

Throws:

SQLException

execute

public List<com.singlestore.jdbc.client.Completion> execute(com.singlestore.jdbc.message.ClientMessage message,
                                                            Statement stmt)
                                                     throws SQLException

Specified by:

execute in interface com.singlestore.jdbc.client.Client

Throws:

SQLException

execute

public List<com.singlestore.jdbc.client.Completion> execute(com.singlestore.jdbc.message.ClientMessage message,
                                                            Statement stmt,
                                                            int fetchSize,
                                                            long maxRows,
                                                            int resultSetConcurrency,
                                                            int resultSetType,
                                                            boolean closeOnCompletion)
                                                     throws SQLException

Specified by:

execute in interface com.singlestore.jdbc.client.Client

Throws:

SQLException

executePipeline

public List<com.singlestore.jdbc.client.Completion> executePipeline(com.singlestore.jdbc.message.ClientMessage[] messages,
                                                                    Statement stmt,
                                                                    int fetchSize,
                                                                    long maxRows,
                                                                    int resultSetConcurrency,
                                                                    int resultSetType,
                                                                    boolean closeOnCompletion)
                                                             throws SQLException

Specified by:

executePipeline in interface com.singlestore.jdbc.client.Client

Throws:

SQLException

readStreamingResults

public void readStreamingResults(List<com.singlestore.jdbc.client.Completion> completions,
                                 int fetchSize,
                                 long maxRows,
                                 int resultSetConcurrency,
                                 int resultSetType,
                                 boolean closeOnCompletion)
                          throws SQLException

Specified by:

readStreamingResults in interface com.singlestore.jdbc.client.Client

Throws:

SQLException

closePrepare

public void closePrepare(Prepare prepare)
                  throws SQLException

Specified by:

closePrepare in interface com.singlestore.jdbc.client.Client

Throws:

SQLException

abort

public void abort(Executor executor)
           throws SQLException

Specified by:

abort in interface com.singlestore.jdbc.client.Client

Throws:

SQLException

close

public void close()
           throws SQLException

Specified by:

close in interface com.singlestore.jdbc.client.Client

Specified by:

close in interface AutoCloseable

Throws:

SQLException

setReadOnly

public void setReadOnly(boolean readOnly)
                 throws SQLException

Specified by:

setReadOnly in interface com.singlestore.jdbc.client.Client

Throws:

SQLException

getSocketTimeout

public int getSocketTimeout()

Specified by:

getSocketTimeout in interface com.singlestore.jdbc.client.Client

setSocketTimeout

public void setSocketTimeout(int milliseconds)
                      throws SQLException

Specified by:

setSocketTimeout in interface com.singlestore.jdbc.client.Client

Throws:

SQLException

getWaitTimeout

public int getWaitTimeout()

Specified by:

getWaitTimeout in interface com.singlestore.jdbc.client.Client

isClosed

public boolean isClosed()

Specified by:

isClosed in interface com.singlestore.jdbc.client.Client

getContext

public com.singlestore.jdbc.client.Context getContext()

Specified by:

getContext in interface com.singlestore.jdbc.client.Client

getExceptionFactory

public ExceptionFactory getExceptionFactory()

Specified by:

getExceptionFactory in interface com.singlestore.jdbc.client.Client

getHostAddress

public HostAddress getHostAddress()

Specified by:

getHostAddress in interface com.singlestore.jdbc.client.Client

isPrimary

public boolean isPrimary()

Specified by:

isPrimary in interface com.singlestore.jdbc.client.Client

reset

public void reset()

Specified by:

reset in interface com.singlestore.jdbc.client.Client