tests/dat/actions/helloAsync.js

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.
 */

/**
 * word count utility, coded as an asynchronous action for pedagogical
 * purposes
 */
function wc(params) {
    var str = params.payload;
    var words = str.split(" ");
    var count = words.length;
    console.log("The message '"+str+"' has", count, 'words');
    return {count: count};
}

function main(params) {
    return new Promise(function(resolve, reject) {
        setTimeout(function () {
            resolve(wc(params));
        }, 100);
    });
}