com.intelligt.modbus.jlibmodbus.data.SimpleFifoQueue Maven / Gradle / Ivy
package com.intelligt.modbus.jlibmodbus.data;
import com.intelligt.modbus.jlibmodbus.Modbus;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Queue;
/*
* Copyright (C) 2016 "Invertor" Factory", JSC
* [http://www.sbp-invertor.ru]
*
* This file is part of JLibModbus.
*
* 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.
*
* Authors: Vladislav Y. Kochedykov, software engineer.
* email: [email protected]
*/
public class SimpleFifoQueue extends FifoQueue {
final private Queue queue = new LinkedList();
public SimpleFifoQueue() {
super(Modbus.MAX_FIFO_COUNT);
}
@Override
public int size() {
return queue.size();
}
@Override
protected int[] peekImpl() {
if (queue.size() > 0) {
int[] r = new int[queue.size()];
Iterator iterator = queue.iterator();
for (int i = 0; i < r.length && iterator.hasNext(); i++) {
r[i] = iterator.next();
}
return r;
}
return new int[0];
}
@Override
protected void addImpl(int register) {
queue.add(register);
}
@Override
protected void pollImpl() {
queue.poll();
}
}