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/*******************************************************************************
* Copyright (c) 2008, 2013 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.common.utility.internal.closure;
import org.eclipse.jpt.common.utility.closure.InterruptibleClosure;
/**
* @see ThreadLocalClosure
*/
public class ThreadLocalInterruptibleClosure<A>
implements InterruptibleClosure<A>
{
private final ThreadLocal<InterruptibleClosure<? super A>> threadLocal;
private final InterruptibleClosure<? super A> defaultInterruptibleClosure;
public ThreadLocalInterruptibleClosure(InterruptibleClosure<? super A> defaultInterruptibleClosure) {
super();
if (defaultInterruptibleClosure == null) {
throw new NullPointerException();
}
this.defaultInterruptibleClosure = defaultInterruptibleClosure;
this.threadLocal = this.buildThreadLocal();
}
private ThreadLocal<InterruptibleClosure<? super A>> buildThreadLocal() {
return new ThreadLocal<InterruptibleClosure<? super A>>();
}
public void execute(A argument) throws InterruptedException {
this.get().execute(argument);
}
private InterruptibleClosure<? super A> get() {
InterruptibleClosure<? super A> closure = this.threadLocal.get();
if (closure != null) {
return closure;
}
return this.defaultInterruptibleClosure;
}
/**
* Set the current thread's closure to the specified value.
*/
public void set(InterruptibleClosure<? super A> closure) {
this.threadLocal.set(closure);
}
/**
* Return the string representation of the current thread's closure.
*/
@Override
public String toString() {
return this.get().toString();
}
}
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