64 lines
1.8 KiB
Java
64 lines
1.8 KiB
Java
/*
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* Copyright (C) 2021 eichehome
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package server;
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/**
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*
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* @author eichehome
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*/
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public class FifoPipe {
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public PipeElement firstElement;
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public PipeElement lastElement;
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public FifoPipe() {
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}
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public void queuElement(Element element) {
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PipeElement pipeElement = new PipeElement(element);
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try {
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lastElement.setNextElement(pipeElement);
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lastElement = pipeElement;
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} catch (NullPointerException ex) {
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firstElement = pipeElement;
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lastElement = pipeElement;
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}
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}
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public PipeElement getNextElement() {
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PipeElement result = null;
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if (firstElement == null) {
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return result;
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} else {
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if (firstElement == lastElement) {
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result = firstElement;
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firstElement = null;
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lastElement = null;
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return result;
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} else {
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result = firstElement;
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PipeElement next = firstElement.getNext();
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firstElement = next;
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return result;
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}
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}
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}
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}
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