ThreadLocalInitializingCallable.java

package fr.openwide.core.jpa.batch.monitor;

import java.util.concurrent.Callable;

public class ThreadLocalInitializingCallable<T, C> implements Callable<T> {

	public final Callable<T> callable;

	public final ThreadLocal<C> threadLocalContext;

	public final C context;

	public ThreadLocalInitializingCallable(Callable<T> callable, ThreadLocal<C> threadLocalContext, C context) {
		this.callable = callable;
		this.threadLocalContext = threadLocalContext;
		this.context = context;
	}

	@Override
	public T call() throws Exception {
		threadLocalContext.set(this.context);
		try {
			return callable.call();
		} finally {
			threadLocalContext.remove();
		}
	}

}