package com.lgcns.test;

import java.util.LinkedList;

import java.util.Queue;

import java.util.UUID;

public class CustomQueue {

private String name;

private int size;

private Queue<Element> queue;

public CustomQueue(String name, int size) {

this.name= name;

this.size =size;

queue = new LinkedList<Element>();

}

public boolean isFull() {

if(queue.size()==this.size) {

return true;

}

return false;

}

public void add(String value) {

queue.add(new Element(value,true,UUID.randomUUID().toString()));

}

public Element dequeue() {

if(queue.isEmpty()) {

return null;

}

return getFirstElement();

}

public Element getFirstElement() {

for(Element e:queue) {

if(e.getUsed()==false) {

continue;

}

e.setUsed(false);

return e;

}

return null;

}

public Element findElement(String uid) {

for(Element e:queue) {

if(e.getUid().equals(uid)) {

return e;

}

}

return null;

}

public void changeStatus(Element e, boolean used) {

e.setUsed(used);

}

public void remove(String uid) {

queue.remove(findElement(uid));

}

}