com.emc.mongoose.storage.driver.nio.base

Class NioStorageDriverBase<I extends com.emc.mongoose.api.model.item.Item,O extends com.emc.mongoose.api.model.io.task.IoTask<I>>

java.lang.Object

com.emc.mongoose.api.model.concurrent.DaemonBase

com.emc.mongoose.storage.driver.base.StorageDriverBase<I,O>

com.emc.mongoose.storage.driver.nio.base.NioStorageDriverBase<I,O>

All Implemented Interfaces:

com.emc.mongoose.api.model.concurrent.Daemon, com.emc.mongoose.api.model.storage.StorageDriver<I,O>, NioStorageDriver<I,O>, com.github.akurilov.commons.io.Input<O>, com.github.akurilov.commons.io.Output<O>, java.io.Closeable, java.lang.AutoCloseable, java.rmi.Remote

public abstract class NioStorageDriverBase<I extends com.emc.mongoose.api.model.item.Item,O extends com.emc.mongoose.api.model.io.task.IoTask<I>>
extends com.emc.mongoose.storage.driver.base.StorageDriverBase<I,O>
implements NioStorageDriver<I,O>

Created by kurila on 19.07.16. The multi-threaded non-blocking I/O storage driver. Note that this kind of storage driver uses the service coroutines facility to execute the I/O

Nested Class Summary

Nested classes/interfaces inherited from interface com.emc.mongoose.api.model.concurrent.Daemon

com.emc.mongoose.api.model.concurrent.Daemon.State

Field Summary

Fields inherited from class com.emc.mongoose.storage.driver.base.StorageDriverBase

authTokens, childTasksQueue, concurrencyLevel, concurrencyThrottle, credential, DATE_SUPPLIER, pathToCredMap, requestAuthTokenFunc, requestNewPathFunc, stepId, verifyFlag

Fields inherited from class com.emc.mongoose.api.model.concurrent.DaemonBase

state, SVC_EXECUTOR

Fields inherited from interface com.emc.mongoose.storage.driver.nio.base.NioStorageDriver

MIN_TASK_BUFF_CAPACITY

Fields inherited from interface com.emc.mongoose.api.model.storage.StorageDriver

BUFF_SIZE_MAX, BUFF_SIZE_MIN

Fields inherited from interface com.github.akurilov.commons.io.Input

DELIMITER

Constructor Summary

Constructors

Constructor and Description
NioStorageDriverBase(java.lang.String testSteoName, com.emc.mongoose.api.model.data.DataInput dataInput, com.emc.mongoose.ui.config.load.LoadConfig loadConfig, com.emc.mongoose.ui.config.storage.StorageConfig storageConfig, boolean verifyFlag)

Method Summary

Modifier and Type	Method and Description
protected void	doClose()
protected void	doInterrupt()
protected void	doStart()
protected void	finishIoTask(O ioTask)
protected abstract void	invokeNio(O ioTask) Reentrant method which decorates the actual non-blocking create/read/etc I/O operation.
protected int	submit(java.util.List<O> ioTasks)
protected int	submit(java.util.List<O> ioTasks, int from, int to)
protected boolean	submit(O ioTask)

Methods inherited from class com.emc.mongoose.storage.driver.base.StorageDriverBase

await, doShutdown, get, getActiveTaskCount, getAll, getCompletedTaskCount, getConcurrencyLevel, getInput, getScheduledTaskCount, ioTaskCompleted, isIdle, prepareIoTask, put, put, put, requestNewAuthToken, requestNewPath, skip, toString

Methods inherited from class com.emc.mongoose.api.model.concurrent.DaemonBase

await, close, closeAll, getState, interrupt, isClosed, isInterrupted, isShutdown, isStarted, setThreadCount, shutdown, start

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.emc.mongoose.api.model.storage.StorageDriver

adjustIoBuffers, close, get, getActiveTaskCount, getCompletedTaskCount, getConcurrencyLevel, getScheduledTaskCount, isIdle, list, reset

Methods inherited from interface com.emc.mongoose.api.model.concurrent.Daemon

await, await, getState, interrupt, isClosed, isInterrupted, isShutdown, isStarted, shutdown, start

Methods inherited from interface com.github.akurilov.commons.io.Input

get, getAll, skip

Methods inherited from interface com.github.akurilov.commons.io.Output

getInput, put, put, put

Constructor Detail

NioStorageDriverBase

public NioStorageDriverBase(java.lang.String testSteoName,
                            com.emc.mongoose.api.model.data.DataInput dataInput,
                            com.emc.mongoose.ui.config.load.LoadConfig loadConfig,
                            com.emc.mongoose.ui.config.storage.StorageConfig storageConfig,
                            boolean verifyFlag)
                     throws com.emc.mongoose.api.common.exception.OmgShootMyFootException

Throws:

com.emc.mongoose.api.common.exception.OmgShootMyFootException

Method Detail

invokeNio

protected abstract void invokeNio(O ioTask)

Reentrant method which decorates the actual non-blocking create/read/etc I/O operation. May change the task status or not change if the I/O operation is not completed during this particular invocation

Parameters:

ioTask -

doStart

protected final void doStart()
                      throws java.lang.IllegalStateException

Overrides:

doStart in class com.emc.mongoose.storage.driver.base.StorageDriverBase<I extends com.emc.mongoose.api.model.item.Item,O extends com.emc.mongoose.api.model.io.task.IoTask<I>>

Throws:

java.lang.IllegalStateException

doInterrupt

protected final void doInterrupt()
                          throws java.lang.IllegalStateException

Specified by:

doInterrupt in class com.emc.mongoose.api.model.concurrent.DaemonBase

Throws:

java.lang.IllegalStateException

submit

protected final boolean submit(O ioTask)
                        throws java.lang.IllegalStateException

Specified by:

submit in class com.emc.mongoose.storage.driver.base.StorageDriverBase<I extends com.emc.mongoose.api.model.item.Item,O extends com.emc.mongoose.api.model.io.task.IoTask<I>>

Throws:

java.lang.IllegalStateException

submit

protected final int submit(java.util.List<O> ioTasks,
                           int from,
                           int to)
                    throws java.lang.IllegalStateException

Specified by:

submit in class com.emc.mongoose.storage.driver.base.StorageDriverBase<I extends com.emc.mongoose.api.model.item.Item,O extends com.emc.mongoose.api.model.io.task.IoTask<I>>

Throws:

java.lang.IllegalStateException

submit

protected final int submit(java.util.List<O> ioTasks)
                    throws java.lang.IllegalStateException

Specified by:

submit in class com.emc.mongoose.storage.driver.base.StorageDriverBase<I extends com.emc.mongoose.api.model.item.Item,O extends com.emc.mongoose.api.model.io.task.IoTask<I>>

Throws:

java.lang.IllegalStateException

finishIoTask

protected final void finishIoTask(O ioTask)

doClose

protected void doClose()
                throws java.io.IOException

Overrides:

doClose in class com.emc.mongoose.storage.driver.base.StorageDriverBase<I extends com.emc.mongoose.api.model.item.Item,O extends com.emc.mongoose.api.model.io.task.IoTask<I>>

Throws:

java.io.IOException