Java ExecutorService: awaitTermination of all recursively created tasks

Question

I use an ExecutorService to execute a task. This task can recursively create other tasks which are submitted to the same ExecutorService and those

Answer 1

You could use a runner that keeps track of running threads:

Runner runner = Runner.runner(numberOfThreads);

runner.runIn(2, SECONDS, callable);
runner.run(callable);


// blocks until all tasks are finished (or failed)
runner.waitTillDone();


// and reuse it
runner.runRunnableIn(500, MILLISECONDS, runnable);


runner.waitTillDone();


// and then just kill it
runner.shutdownAndAwaitTermination();

to use it you just add a dependency:

compile 'com.github.matejtymes:javafixes:1.3.0'