/*
* Copyright 2014 Red Hat, Inc.
*
* Red Hat licenses this file to you under the Apache License, version 2.0
* (the "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
/** @module vertx-js/counter */
var utils = require('vertx-js/util/utils');
var io = Packages.io;
var JsonObject = io.vertx.core.json.JsonObject;
var JCounter = io.vertx.core.shareddata.Counter;
/**
An asynchronous counter that can be used to across the cluster to maintain a consistent count.
<p>
@class
*/
var Counter = function(j_val) {
var j_counter = j_val;
var that = this;
/**
Get the current value of the counter
@public
@param resultHandler {function} handler which will be passed the value
*/
this.get = function(resultHandler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_counter["get(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
resultHandler(ar.result(), null);
} else {
resultHandler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Increment the counter atomically and return the new count
@public
@param resultHandler {function} handler which will be passed the value
*/
this.incrementAndGet = function(resultHandler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_counter["incrementAndGet(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
resultHandler(ar.result(), null);
} else {
resultHandler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Increment the counter atomically and return the value before the increment.
@public
@param resultHandler {function} handler which will be passed the value
*/
this.getAndIncrement = function(resultHandler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_counter["getAndIncrement(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
resultHandler(ar.result(), null);
} else {
resultHandler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Decrement the counter atomically and return the new count
@public
@param resultHandler {function} handler which will be passed the value
*/
this.decrementAndGet = function(resultHandler) {
var __args = arguments;
if (__args.length === 1 && typeof __args[0] === 'function') {
j_counter["decrementAndGet(io.vertx.core.Handler)"](function(ar) {
if (ar.succeeded()) {
resultHandler(ar.result(), null);
} else {
resultHandler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Add the value to the counter atomically and return the new count
@public
@param value {number} the value to add
@param resultHandler {function} handler which will be passed the value
*/
this.addAndGet = function(value, resultHandler) {
var __args = arguments;
if (__args.length === 2 && typeof __args[0] ==='number' && typeof __args[1] === 'function') {
j_counter["addAndGet(long,io.vertx.core.Handler)"](value, function(ar) {
if (ar.succeeded()) {
resultHandler(ar.result(), null);
} else {
resultHandler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Add the value to the counter atomically and return the value before the add
@public
@param value {number} the value to add
@param resultHandler {function} handler which will be passed the value
*/
this.getAndAdd = function(value, resultHandler) {
var __args = arguments;
if (__args.length === 2 && typeof __args[0] ==='number' && typeof __args[1] === 'function') {
j_counter["getAndAdd(long,io.vertx.core.Handler)"](value, function(ar) {
if (ar.succeeded()) {
resultHandler(ar.result(), null);
} else {
resultHandler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
/**
Set the counter to the specified value only if the current value is the expectec value. This happens
atomically.
@public
@param expected {number} the expected value
@param value {number} the new value
@param resultHandler {function} the handler will be passed true on success
*/
this.compareAndSet = function(expected, value, resultHandler) {
var __args = arguments;
if (__args.length === 3 && typeof __args[0] ==='number' && typeof __args[1] ==='number' && typeof __args[2] === 'function') {
j_counter["compareAndSet(long,long,io.vertx.core.Handler)"](expected, value, function(ar) {
if (ar.succeeded()) {
resultHandler(ar.result(), null);
} else {
resultHandler(null, ar.cause());
}
});
} else throw new TypeError('function invoked with invalid arguments');
};
// A reference to the underlying Java delegate
// NOTE! This is an internal API and must not be used in user code.
// If you rely on this property your code is likely to break if we change it / remove it without warning.
this._jdel = j_counter;
};
// We export the Constructor function
module.exports = Counter;