com.exactpro.sf.bigbutton.execution.CombineQueue Maven / Gradle / Ivy
/******************************************************************************
* Copyright 2009-2018 Exactpro (Exactpro Systems Limited)
*
* 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.exactpro.sf.bigbutton.execution;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
public class CombineQueue {
private final BlockingQueue commonQueue = new LinkedBlockingQueue<>();
private final Map> exeutorToQueue = new HashMap<>();
public void register(String name) {
if(exeutorToQueue.put(name, new LinkedBlockingQueue<>()) != null) {
throw new IllegalArgumentException("Name '"+ name +"' is already registered");
}
}
public void add(String name, T element) {
getQueue(name).add(element);
}
public void add(T element) {
add(null, element);
}
public T poll(String name, long timeout, TimeUnit unit) throws InterruptedException {
return getNamedOrCommonQueue(name).poll(timeout, unit);
}
public T poll(long timeout, TimeUnit unit) throws InterruptedException {
return poll(null, timeout, unit);
}
private BlockingQueue getNamedOrCommonQueue(String name) {
BlockingQueue result = getQueue(name);
return result.isEmpty() ? commonQueue : result;
}
private BlockingQueue getQueue(String name) {
if (name != null) {
BlockingQueue queue = exeutorToQueue.get(name);
if (queue != null) {
return queue;
} else {
throw new IllegalArgumentException("Name '"+ name +"' is unregistered");
}
}
return commonQueue;
}
}