Package cz.o2.proxima.core.utils.zookeeper

Class ZKGlobalWatermarkTracker

java.lang.Object

cz.o2.proxima.core.utils.zookeeper.ZKGlobalWatermarkTracker

All Implemented Interfaces:

cz.o2.proxima.core.functional.TimeProvider, cz.o2.proxima.core.storage.watermark.GlobalWatermarkTracker, cz.o2.proxima.core.time.WatermarkSupplier, java.io.Serializable

public class ZKGlobalWatermarkTracker
extends java.lang.Object
implements cz.o2.proxima.core.storage.watermark.GlobalWatermarkTracker

A GlobalWatermarkTracker that stores global information in Apache Zookeeper.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	CFG_MAX_ACCEPTABLE_UPDATE_AGE_MS
static java.lang.String	CFG_NAME
static java.lang.String	CFG_TIME_PROVIDER
static java.lang.String	ZK_SESSION_TIMEOUT
static java.lang.String	ZK_URI

Constructor Summary

Constructors

Constructor	Description
ZKGlobalWatermarkTracker()

Method Summary

Modifier and Type	Method	Description
void	finished(java.lang.String name)
long	getGlobalWatermark(java.lang.String processName, long currentWatermark)
java.lang.String	getName()
void	initWatermarks(java.util.Map<java.lang.String,java.lang.Long> initialWatermarks)
protected java.lang.Object	readResolve()
void	setup(java.util.Map<java.lang.String,java.lang.Object> cfg)
java.lang.String	toString()
java.util.concurrent.CompletableFuture<java.lang.Void>	update(java.lang.String processName, long currentWatermark)

Methods inherited from class java.lang.Object

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

Methods inherited from interface cz.o2.proxima.core.storage.watermark.GlobalWatermarkTracker

getWatermark

Methods inherited from interface cz.o2.proxima.core.time.WatermarkSupplier

getCurrentTime

Field Detail

CFG_NAME

public static final java.lang.String CFG_NAME

See Also:

Constant Field Values

ZK_URI

public static final java.lang.String ZK_URI

See Also:

Constant Field Values

ZK_SESSION_TIMEOUT

public static final java.lang.String ZK_SESSION_TIMEOUT

See Also:

Constant Field Values

CFG_TIME_PROVIDER

public static final java.lang.String CFG_TIME_PROVIDER

See Also:

Constant Field Values

CFG_MAX_ACCEPTABLE_UPDATE_AGE_MS

public static final java.lang.String CFG_MAX_ACCEPTABLE_UPDATE_AGE_MS

See Also:

Constant Field Values

Constructor Detail

ZKGlobalWatermarkTracker

public ZKGlobalWatermarkTracker()

Method Detail

getName

public java.lang.String getName()

Specified by:

getName in interface cz.o2.proxima.core.storage.watermark.GlobalWatermarkTracker

setup

public void setup(java.util.Map<java.lang.String,java.lang.Object> cfg)

Specified by:

setup in interface cz.o2.proxima.core.storage.watermark.GlobalWatermarkTracker

initWatermarks

public void initWatermarks(java.util.Map<java.lang.String,java.lang.Long> initialWatermarks)

Specified by:

initWatermarks in interface cz.o2.proxima.core.storage.watermark.GlobalWatermarkTracker

update

public java.util.concurrent.CompletableFuture<java.lang.Void> update(java.lang.String processName,
                                                                     long currentWatermark)

Specified by:

update in interface cz.o2.proxima.core.storage.watermark.GlobalWatermarkTracker

finished

public void finished(java.lang.String name)

Specified by:

finished in interface cz.o2.proxima.core.storage.watermark.GlobalWatermarkTracker

getGlobalWatermark

public long getGlobalWatermark(@Nullable
                               java.lang.String processName,
                               long currentWatermark)

Specified by:

getGlobalWatermark in interface cz.o2.proxima.core.storage.watermark.GlobalWatermarkTracker

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

readResolve

protected java.lang.Object readResolve()