org.apache.giraph.utils

Class LogStacktraceCallable<V>

java.lang.Object

org.apache.giraph.utils.LogStacktraceCallable<V>

Type Parameters:

V - Return type of call()

All Implemented Interfaces:

Callable<V>

public class LogStacktraceCallable<V>
extends Object
implements Callable<V>

A wrapper to improve debugging. It passes the call() invocation to the provided callable, and upon any exception logs the stacktrace and rethrows the exception. The logging functionality is missing in FutureTask.

Constructor Summary

Constructors

Constructor and Description
LogStacktraceCallable(Callable<V> callable) Construct an instance that will pass call() to the given callable.
LogStacktraceCallable(Callable<V> callable, Thread.UncaughtExceptionHandler uncaughtExceptionHandler) Construct an instance that will pass call() to the given callable.

Method Summary

Modifier and Type	Method and Description
V	call()

Methods inherited from class java.lang.Object

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

Constructor Detail

LogStacktraceCallable

public LogStacktraceCallable(Callable<V> callable)

Construct an instance that will pass call() to the given callable.

Parameters:

callable - Callable

LogStacktraceCallable

public LogStacktraceCallable(Callable<V> callable,
                             Thread.UncaughtExceptionHandler uncaughtExceptionHandler)

Construct an instance that will pass call() to the given callable.

Parameters:

callable - Callable

uncaughtExceptionHandler - Uncaught exception handler, if any

Method Detail

call

public V call()
       throws Exception

Specified by:

call in interface Callable<V>

Throws:

Exception