com.opentable.concurrent.CallableWrappers Maven / Gradle / Ivy
/**
* Copyright (C) 2012 Ness Computing, 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.opentable.concurrent;
import java.util.Set;
import java.util.concurrent.Callable;
import com.google.common.collect.ImmutableSet;
class CallableWrappers
{
private CallableWrappers() {}
static CallableWrapper combine(Iterable wrappers)
{
return new CombinedCallableWrapper(wrappers);
}
private static class CombinedCallableWrapper extends CallableWrapper
{
private final Set wrappers;
CombinedCallableWrapper(Iterable wrappers)
{
this.wrappers = ImmutableSet.copyOf(wrappers);
}
@Override
public Callable wrap(Callable callable)
{
for (CallableWrapper w : wrappers) {
callable = w.wrap(callable);
}
return callable;
}
@Override
public Runnable wrap(Runnable runnable)
{
for (CallableWrapper w : wrappers) {
runnable = w.wrap(runnable);
}
return runnable;
}
}
}