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/*
* Copyright 2011,2012 Metamarkets Group Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.metamx.common.concurrent;
import com.google.common.base.Function;
import java.util.concurrent.ThreadFactory;
/**
*/
public class FunctionalThreadFactory implements ThreadFactory
{
private final ThreadFactory delegate;
public FunctionalThreadFactory(final String name)
{
this(
new ThreadFactory()
{
@Override
public Thread newThread(Runnable runnable)
{
return new Thread(runnable, name);
}
}
);
}
public FunctionalThreadFactory(ThreadFactory delegate)
{
this.delegate = delegate;
}
@Override
public Thread newThread(Runnable runnable)
{
return delegate.newThread(runnable);
}
public FunctionalThreadFactory transform(Function fn)
{
return new FunctionalThreadFactory(fn.apply(delegate));
}
public FunctionalThreadFactory transformThread(final Function fn)
{
return new FunctionalThreadFactory(new ThreadFactory()
{
@Override
public Thread newThread(Runnable runnable)
{
return fn.apply(delegate.newThread(runnable));
}
});
}
public FunctionalThreadFactory daemonize()
{
return transformThread(
new Function()
{
@Override
public Thread apply(Thread input)
{
input.setDaemon(true);
return input;
}
}
);
}
}