this._load_nodes = function()

in optaplanner-docs/src/modules/ROOT/images/website/jstree/jstree.js [7295:7365]
71 lines of code
28 McCabe index (conditional complexity)

		this._load_nodes = function (nodes, callback, is_callback, force_reload) {
			var s = this.settings.massload,
				nodesString = JSON.stringify(nodes),
				toLoad = [],
				m = this._model.data,
				i, j, dom;
			if (!is_callback) {
				for(i = 0, j = nodes.length; i < j; i++) {
					if(!m[nodes[i]] || ( (!m[nodes[i]].state.loaded && !m[nodes[i]].state.failed) || force_reload) ) {
						toLoad.push(nodes[i]);
						dom = this.get_node(nodes[i], true);
						if (dom && dom.length) {
							dom.addClass("jstree-loading").attr('aria-busy',true);
						}
					}
				}
				this._data.massload = {};
				if (toLoad.length) {
					if($.isFunction(s)) {
						return s.call(this, toLoad, $.proxy(function (data) {
							var i, j;
							if(data) {
								for(i in data) {
									if(data.hasOwnProperty(i)) {
										this._data.massload[i] = data[i];
									}
								}
							}
							for(i = 0, j = nodes.length; i < j; i++) {
								dom = this.get_node(nodes[i], true);
								if (dom && dom.length) {
									dom.removeClass("jstree-loading").attr('aria-busy',false);
								}
							}
							parent._load_nodes.call(this, nodes, callback, is_callback, force_reload);
						}, this));
					}
					if(typeof s === 'object' && s && s.url) {
						s = $.extend(true, {}, s);
						if($.isFunction(s.url)) {
							s.url = s.url.call(this, toLoad);
						}
						if($.isFunction(s.data)) {
							s.data = s.data.call(this, toLoad);
						}
						return $.ajax(s)
							.done($.proxy(function (data,t,x) {
									var i, j;
									if(data) {
										for(i in data) {
											if(data.hasOwnProperty(i)) {
												this._data.massload[i] = data[i];
											}
										}
									}
									for(i = 0, j = nodes.length; i < j; i++) {
										dom = this.get_node(nodes[i], true);
										if (dom && dom.length) {
											dom.removeClass("jstree-loading").attr('aria-busy',false);
										}
									}
									parent._load_nodes.call(this, nodes, callback, is_callback, force_reload);
								}, this))
							.fail($.proxy(function (f) {
									parent._load_nodes.call(this, nodes, callback, is_callback, force_reload);
								}, this));
					}
				}
			}
			return parent._load_nodes.call(this, nodes, callback, is_callback, force_reload);
		};