Package org.aksw.deer.logging

Class MdcThreadPoolExecutor

java.lang.Object

java.util.concurrent.AbstractExecutorService

java.util.concurrent.ForkJoinPool

org.aksw.deer.logging.MdcThreadPoolExecutor

public class MdcThreadPoolExecutor
extends java.util.concurrent.ForkJoinPool

A SLF4J MDC-compatible ForkJoinPool.

In general, MDC is used to store diagnostic information (e.g. a user's session id) in per-thread variables, to facilitate logging. However, although MDC data is passed to thread children, this doesn't work when threads are reused in a thread pool. This is a drop-in replacement for ForkJoinPool sets MDC data before each task appropriately.

Nested Class Summary

Nested classes/interfaces inherited from class java.util.concurrent.ForkJoinPool

java.util.concurrent.ForkJoinPool.ForkJoinWorkerThreadFactory, java.util.concurrent.ForkJoinPool.ManagedBlocker

Field Summary

Fields inherited from class java.util.concurrent.ForkJoinPool

defaultForkJoinWorkerThreadFactory

Method Summary

Modifier and Type	Method	Description
void	execute(java.lang.Runnable command)
<T> java.util.List<java.util.concurrent.Future<T>>	invokeAll(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks)
<T> java.util.List<java.util.concurrent.Future<T>>	invokeAll(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks, long timeout, java.util.concurrent.TimeUnit unit)
<T> T	invokeAny(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks)
<T> T	invokeAny(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks, long timeout, java.util.concurrent.TimeUnit unit)
static MdcThreadPoolExecutor	newWithCurrentMdc(int parallelism)	Pool where task threads take fixed MDC from the thread that creates the pool.
static MdcThreadPoolExecutor	newWithFixedMdc(java.util.Map<java.lang.String,java.lang.String> fixedContext, int parallelism)	Pool where task threads always have a specified, fixed MDC.
static MdcThreadPoolExecutor	newWithInheritedMdc(int parallelism)	Pool where task threads take MDC from the submitting thread.
java.util.concurrent.ForkJoinTask<?>	submit(java.lang.Runnable task)
<T> java.util.concurrent.ForkJoinTask<T>	submit(java.lang.Runnable task, T result)
<T> java.util.concurrent.ForkJoinTask<T>	submit(java.util.concurrent.Callable<T> task)

Methods inherited from class java.util.concurrent.ForkJoinPool

awaitQuiescence, awaitTermination, commonPool, drainTasksTo, execute, getActiveThreadCount, getAsyncMode, getCommonPoolParallelism, getFactory, getParallelism, getPoolSize, getQueuedSubmissionCount, getQueuedTaskCount, getRunningThreadCount, getStealCount, getUncaughtExceptionHandler, hasQueuedSubmissions, invoke, isQuiescent, isShutdown, isTerminated, isTerminating, managedBlock, newTaskFor, newTaskFor, pollSubmission, shutdown, shutdownNow, submit, toString

Methods inherited from class java.lang.Object

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

Method Detail

newWithInheritedMdc

public static MdcThreadPoolExecutor newWithInheritedMdc(int parallelism)

Pool where task threads take MDC from the submitting thread.

newWithCurrentMdc

public static MdcThreadPoolExecutor newWithCurrentMdc(int parallelism)

Pool where task threads take fixed MDC from the thread that creates the pool.

newWithFixedMdc

public static MdcThreadPoolExecutor newWithFixedMdc(java.util.Map<java.lang.String,java.lang.String> fixedContext,
                                                    int parallelism)

Pool where task threads always have a specified, fixed MDC.

execute

public void execute(java.lang.Runnable command)

Overrides:

execute in class java.util.concurrent.ForkJoinPool

submit

@NotNull
public <T> java.util.concurrent.ForkJoinTask<T> submit(java.util.concurrent.Callable<T> task)

Overrides:

submit in class java.util.concurrent.ForkJoinPool

submit

@NotNull
public <T> java.util.concurrent.ForkJoinTask<T> submit(java.lang.Runnable task,
                                                       T result)

Overrides:

submit in class java.util.concurrent.ForkJoinPool

submit

@NotNull
public java.util.concurrent.ForkJoinTask<?> submit(java.lang.Runnable task)

Overrides:

submit in class java.util.concurrent.ForkJoinPool

invokeAll

@NotNull
public <T> java.util.List<java.util.concurrent.Future<T>> invokeAll(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks)

Overrides:

invokeAll in class java.util.concurrent.ForkJoinPool

invokeAll

@NotNull
public <T> java.util.List<java.util.concurrent.Future<T>> invokeAll(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks,
                                                                    long timeout,
                                                                    java.util.concurrent.TimeUnit unit)
                                                             throws java.lang.InterruptedException

Overrides:

invokeAll in class java.util.concurrent.AbstractExecutorService

Throws:

java.lang.InterruptedException

invokeAny

@NotNull
public <T> T invokeAny(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks)

Overrides:

invokeAny in class java.util.concurrent.AbstractExecutorService

invokeAny

public <T> T invokeAny(java.util.Collection<? extends java.util.concurrent.Callable<T>> tasks,
                       long timeout,
                       java.util.concurrent.TimeUnit unit)

Overrides:

invokeAny in class java.util.concurrent.AbstractExecutorService