package com.intelligt.modbus.jlibmodbus.data;
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import com.intelligt.modbus.jlibmodbus.Modbus;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.Queue;
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/*
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* Copyright (C) 2016 "Invertor" Factory", JSC
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* [http://www.sbp-invertor.ru]
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*
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* This file is part of JLibModbus.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Authors: Vladislav Y. Kochedykov, software engineer.
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* email: vladislav.kochedykov@gmail.com
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*/
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public class SimpleFifoQueue extends FifoQueue {
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final private Queue<Integer> queue = new LinkedList<Integer>();
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public SimpleFifoQueue() {
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super(Modbus.MAX_FIFO_COUNT);
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}
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@Override
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public int size() {
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return queue.size();
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}
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@Override
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protected int[] peekImpl() {
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if (queue.size() > 0) {
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int[] r = new int[queue.size()];
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Iterator<Integer> iterator = queue.iterator();
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for (int i = 0; i < r.length && iterator.hasNext(); i++) {
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r[i] = iterator.next();
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}
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return r;
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}
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return new int[0];
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}
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@Override
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protected void addImpl(int register) {
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queue.add(register);
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}
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@Override
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protected void pollImpl() {
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queue.poll();
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}
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}
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