ar.com.siripo.arcache

Class CacheGetterTask

java.lang.Object

ar.com.siripo.arcache.CacheGetterTask

All Implemented Interfaces:

Future<CacheGetResult>

public class CacheGetterTask
extends Object
implements Future<CacheGetResult>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	CacheGetterTask.InvalidatedKey

Field Summary

Fields

Modifier and Type	Field and Description
protected ArcacheBackendClient	backendClient
protected boolean	cancelled
protected ArcacheConfigurationGetInterface	config
protected boolean	done
protected ArcacheBackendClient	invalidationBackendClient
protected HashMap<String,Future<Object>>	invalidationKeysFutureGets
protected String	key
protected ar.com.siripo.arcache.BackendKeyBuilder	keyBuilder
protected Future<Object>	mainFutureGet
protected Random	random
protected boolean	relaxOperationTimeoutInHeavyLoadSystem
protected CacheGetResult	valueToReturn

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CacheGetterTask(String key, ArcacheBackendClient backendClient, ArcacheBackendClient invalidationBackendClient, ar.com.siripo.arcache.BackendKeyBuilder keyBuilder, ArcacheConfigurationGetInterface config, Random random)

Method Summary

Modifier and Type	Method and Description
boolean	cancel(boolean mayInterruptIfRunning)
protected CacheGetResult	doTask(long startTimeMillis, long timeoutMillis)
CacheGetResult	get()
CacheGetResult	get(long timeout, TimeUnit unit)
protected CacheInvalidationObject	getsCacheInvalidationObjectFromFuture(Future<Object> future, long timeoutMillis)
protected boolean	isCachedObjectExpired(ExpirableCacheObject cachedObject, long currentTimeMillis)
protected CacheGetterTask.InvalidatedKey	isCachedObjectInvalidated(ExpirableCacheObject cachedObject, HashMap<String,CacheInvalidationObject> invalidationMap, long currentTimeMillis)
boolean	isCancelled()
boolean	isDone()
protected HashMap<String,CacheInvalidationObject>	loadInvalidationKeys(ExpirableCacheObject cachedObject, long startTimeMillis, long timeoutMillis)

Methods inherited from class java.lang.Object

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

Field Detail

key

protected final String key

backendClient

protected final ArcacheBackendClient backendClient

invalidationBackendClient

protected final ArcacheBackendClient invalidationBackendClient

keyBuilder

protected final ar.com.siripo.arcache.BackendKeyBuilder keyBuilder

config

protected final ArcacheConfigurationGetInterface config

random

protected final Random random

cancelled

protected boolean cancelled

done

protected boolean done

valueToReturn

protected CacheGetResult valueToReturn

relaxOperationTimeoutInHeavyLoadSystem

protected boolean relaxOperationTimeoutInHeavyLoadSystem

mainFutureGet

protected Future<Object> mainFutureGet

invalidationKeysFutureGets

protected HashMap<String,Future<Object>> invalidationKeysFutureGets

Constructor Detail

CacheGetterTask

protected CacheGetterTask(String key,
                          ArcacheBackendClient backendClient,
                          ArcacheBackendClient invalidationBackendClient,
                          ar.com.siripo.arcache.BackendKeyBuilder keyBuilder,
                          ArcacheConfigurationGetInterface config,
                          Random random)

Method Detail

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface Future<CacheGetResult>

isCancelled

public boolean isCancelled()

Specified by:

isCancelled in interface Future<CacheGetResult>

isDone

public boolean isDone()

Specified by:

isDone in interface Future<CacheGetResult>

get

public CacheGetResult get()
                   throws InterruptedException,
                          ExecutionException

Specified by:

get in interface Future<CacheGetResult>

Throws:

InterruptedException

ExecutionException

get

public CacheGetResult get(long timeout,
                          TimeUnit unit)
                   throws InterruptedException,
                          ExecutionException,
                          TimeoutException

Specified by:

get in interface Future<CacheGetResult>

Throws:

InterruptedException

ExecutionException

TimeoutException

doTask

protected CacheGetResult doTask(long startTimeMillis,
                                long timeoutMillis)
                         throws InterruptedException,
                                ExecutionException,
                                TimeoutException

Throws:

InterruptedException

ExecutionException

TimeoutException

isCachedObjectExpired

protected boolean isCachedObjectExpired(ExpirableCacheObject cachedObject,
                                        long currentTimeMillis)

loadInvalidationKeys

protected HashMap<String,CacheInvalidationObject> loadInvalidationKeys(ExpirableCacheObject cachedObject,
                                                                       long startTimeMillis,
                                                                       long timeoutMillis)
                                                                throws TimeoutException,
                                                                       InterruptedException,
                                                                       ExecutionException

Throws:

TimeoutException

InterruptedException

ExecutionException

getsCacheInvalidationObjectFromFuture

protected CacheInvalidationObject getsCacheInvalidationObjectFromFuture(Future<Object> future,
                                                                        long timeoutMillis)
                                                                 throws InterruptedException,
                                                                        ExecutionException,
                                                                        TimeoutException

Throws:

InterruptedException

ExecutionException

TimeoutException

isCachedObjectInvalidated

protected CacheGetterTask.InvalidatedKey isCachedObjectInvalidated(ExpirableCacheObject cachedObject,
                                                                   HashMap<String,CacheInvalidationObject> invalidationMap,
                                                                   long currentTimeMillis)