node-red-contrib-tak-registration
Version:
A Node-RED node to register to TAK and to help wrap files as datapackages to send to TAK
133 lines (116 loc) • 2.67 kB
JavaScript
import EmptyStackException from './EmptyStackException'
import List from './List'
/**
* @see http://download.oracle.com/javase/6/docs/api/java/util/Stack.html
*
* @extends {List}
* @constructor
* @private
*/
export default function Stack () {
/**
* @type {Array}
* @private
*/
this.array_ = []
};
Stack.prototype = new List()
/**
* @override
*/
Stack.prototype.add = function (e) {
this.array_.push(e)
return true
}
/**
* @override
*/
Stack.prototype.get = function (index) {
if (index < 0 || index >= this.size()) {
throw new Error()
}
return this.array_[index]
}
/**
* Pushes an item onto the top of this stack.
* @param {Object} e
* @return {Object}
*/
Stack.prototype.push = function (e) {
this.array_.push(e)
return e
}
/**
* Pushes an item onto the top of this stack.
* @param {Object} e
* @return {Object}
*/
Stack.prototype.pop = function (e) {
if (this.array_.length === 0) {
throw new EmptyStackException()
}
return this.array_.pop()
}
/**
* Looks at the object at the top of this stack without removing it from the
* stack.
* @return {Object}
*/
Stack.prototype.peek = function () {
if (this.array_.length === 0) {
throw new EmptyStackException()
}
return this.array_[this.array_.length - 1]
}
/**
* Tests if this stack is empty.
* @return {boolean} true if and only if this stack contains no items; false
* otherwise.
*/
Stack.prototype.empty = function () {
if (this.array_.length === 0) {
return true
} else {
return false
}
}
/**
* @return {boolean}
*/
Stack.prototype.isEmpty = function () {
return this.empty()
}
/**
* Returns the 1-based position where an object is on this stack. If the object
* o occurs as an item in this stack, this method returns the distance from the
* top of the stack of the occurrence nearest the top of the stack; the topmost
* item on the stack is considered to be at distance 1. The equals method is
* used to compare o to the items in this stack.
*
* NOTE: does not currently actually use equals. (=== is used)
*
* @param {Object} o
* @return {number} the 1-based position from the top of the stack where the
* object is located; the return value -1 indicates that the object is
* not on the stack.
*/
Stack.prototype.search = function (o) {
return this.array_.indexOf(o)
}
/**
* @return {number}
* @export
*/
Stack.prototype.size = function () {
return this.array_.length
}
/**
* @return {Array}
*/
Stack.prototype.toArray = function () {
var array = []
for (var i = 0, len = this.array_.length; i < len; i++) {
array.push(this.array_[i])
}
return array
}