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DataStructures/NameTreeNode.js
Maintainability
66.29
Lines of code
68
Difficulty
30.95
Estimated Errors
0.48
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var binarySearch = require("./../Utility/binarySearch.js") , ndn , debug = require("./../Utility/debug.js"); /**NameTreeNode constructor, NOTE: (typeof URI == "string") && (Name instanceof <a href="https://github.com/named-data/ndn-js/blob/master/js/name.js">ndn.Name</a> ) *@constructor *@private *@param {Name|URI} prefix of the node *@returns {NameTreeNode} */ var NameTreeNode = function NameTreeNode (prefix) { this.prefix = (typeof prefix === "string") ? new ndn.Name(prefix) : (prefix || null); this.parent = null; this.children = []; this.fibEntry = null; this.pitEntries = []; this.measurements = null; this.strategy = null; return this; }; /**Install ndn-lib. Only necessary if you're using require("ndn-Classes/src/DataStructures/NameTreeNode.js"), done for you if require("ndn-Classes").NameTree.Node *@private *@param {Object} NDN ndn-lib object */ NameTreeNode.installNDN = function(NDN){ ndn = NDN; return this; }; /**Add a child node to this one, inserting at the properly sorted index according to canonical namespace rules *@private *@param {NameTreeNode | String} child - the node to insert, or the suffix for a new node. *@returns {NameTreeNode} the original node */ NameTreeNode.prototype.addChild = function addChild(child){ var self = this , index = binarySearch(this.children, child.prefix.get(-1), "prefix"); child = (child.prefix) ? child : new NameTreeNode(new ndn.Name(self.prefix).append(child)); if ( index < 0){ if (debug.NameTree) { console.log("adding child " + child.prefix.toUri()+ " to "+ self.prefix.toUri() + " at index " +~index); } this.children.splice(~index, 0, child); } return this; }; /**Remove a child from this node. This won't derefrence the child node, just remove it from the index *@private *@param {NameTreeNode | String} child - the node to remove, or the suffix of that node. *@returns {NameTreeNode} the original node */ NameTreeNode.prototype.removeChild = function(child){ child = (typeof child === "string") ? {prefix: new ndn.Name(child)} : child; var index = binarySearch(this.children, child.prefix.get(-1), "prefix"); if (index < 0){ return this; } else { this.children.splice(index, 1); return this; } }; module.exports = NameTreeNode;