afryca.ase.Snippet Library adapters Adapters

var adapters = (typeof exports === "undefined")?(function adapters() {}):(exports);
if(typeof global !== "undefined") { global.adapters = adapters; }

adapters.toMultidimensionalArray = function toMultidimensionalArray(value, type) {
	var lengths = [];
	var aux = value;
	while (Array.isArray(aux)) {
		lengths[lengths.length] = aux.length;
		aux = aux[0];
	}
	var depth = lengths.length;

	var ResultType = Java.type(type);
	if (depth < 2) {
		return Java.to(value, type);
	} else {
		var result = eval('new ResultType(' + lengths[0] + ')');
		var simpleType = type.substring(0, type.length() - 2);
		for (var i = 0; i < result.length; i++) {
			result[i] = adapters.toMultidimensionalArray(value[i], simpleType);
		}
		return result;
	}
}

adapters.toNumber = function toNumber(value) {
	try {
		var DoubleType = Java.type('java.lang.Double');
		var number = DoubleType.valueOf(value);
		var NumberType = Java.type('java.lang.Number');
		return (NumberType.class.isInstance(number))
			? NumberType.class.cast(number)
			: null;
	} catch (err) {
		return null;
	}
}

adapters.toDouble = function toDouble(value) {
	var number = adapters.toNumber(value);
	return (number != null)
		? number.doubleValue()
		: null;
}

adapters.toInteger = function toInteger(value) {
	var number = adapters.toNumber(value);
	return (number != null)
		? number.intValue()
		: null;
}

adapters.fuzzyValue2SaatyValue = function fuzzyValue2SaatyValue(value) {
	return Math.pow(9, 2 * value - 1);
}

adapters.fuzzyRelation2SaatyRelation = function fuzzyRelation2SaatyRelation(relation) {
	var elements = relation.length;
	var result = new Array(elements);
	for (var i = 0; i < elements; i++) {
		result[i] = new Array(elements);
		for (var j = 0; j < elements; j++) {
			result[i][j] = adapters.fuzzyValue2SaatyValue(relation[i][j]);
		}
	}
	return result;
}

adapters.saatyValue2FuzzyValue = function saatyValue2FuzzyValue(value) {
	return (1 + (Math.log(value) / Math.log(9)))/2;
}

adapters.saatyRelation2FuzzyRelation = function saatyRelation2FuzzyRelation(relation) {
	var elements = relation.length;
	var result = new Array(elements);
	for (var i = 0; i < elements; i++) {
		result[i] = new Array(elements);
		for (var j = 0; j < elements; j++) {
			result[i][j] = adapters.saatyValue2FuzzyValue(relation[i][j]);
		}
	}
	return result;
}

adapters.fpr2jsArray = function fpr2jsArray(preference) {
	var result;
	var elements = preference.getNumberOfAlternatives();
	result = new Array(elements);
	for (var i = 0; i < elements; i++) {
		result[i] = new Array(elements);
		for (var j = 0; j < elements; j++) {
			result[i][j] = preference.getValue(i | 0, j | 0);
		}
	}
	return result;
}

adapters.fpr2jsSaatyRelation = function fpr2jsSaatyRelation(preference) {
	var jsFuzzyPreferences = adapters.fpr2jsArray(preference);
	return adapters.fuzzyRelation2SaatyRelation(jsFuzzyPreferences);
}

adapters.preferencesAsVectorsArray = function preferecesAsVectorsArray(preferences) {
	var result = [];
	var preference;
	var preferencesArray = preferences[0].getPreferences();
	for (var p = 0; p < preferences.length; p++) {
		preference = [];
		for (var i = 0; i < preferencesArray.length; i++) {
			for (var j = 0; j < preferencesArray[i].length; j++) {
				if(preferences[p] instanceof DecisionMatrix) {
					preference[preference.length] = preferences[p].getValue(i | 0, j | 0);
				} else {
					if (i != j) {
						preference[preference.length] = preferences[p].getValue(i | 0, j | 0);
					}
				}
			}
		}
		result[p] = preference;
	}
	return result;
}

adapters.matrixAsVectorsArray = function matrixAsVectorsArray(preferences) {
	var result = [];
	var preference;
	for (var p = 0; p < preferences.length; p++) {
		preference = [];
		for (var i = 0; i < preferences[p].length; i++) {
			for (var j = 0; j < preferences[p][i].length; j++) {
				preference[preference.length] = preferences[p][i][j];
			}
		}
		result[p] = preference;
	}
	return result;
}

adapters.arrayListAsVector = function arrayListAsVector(arrayList) {
	var result = [];
	for (var i = 0; i < arrayList.size(); i++) {
		result[i] = arrayList.get(i);
	}
	return result;
}

adapters.copyNElementsVector = function copyNElementsVector(vector, n) {
	var result = [];
	for(var i = 0; i < n; i++){
		result[i] = vector[i];
	}
	return result;
}

adapters