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Dynamics365/モデル駆動アプリのJavascriptの並列の実装サンプル①

Last updated at Posted at 2021-12-02

Plugin内での並列処理は非推奨になっているため、より高速的に処理を実現するにはD365外部から実装することになります。
APサーバーなどを利用せずに、Javascriptでの並列処理の実現方法を共有させていただきます。
例えば、大量なデータを並列で登録する要件が発生する場合、以下の処理イメージで実装出来ればと思います。
image.png

sample.js
if (typeof (contoso) == "undefined") {
    contoso = { __namespace: true };
}
(function () {
    "use strict";
    var _currentIndex = 0;
    /**スレッド数*/
    var _concurrency = 20;
    /**処理済み件数 */
    var _processedCount = 0;
    /**総件数 */
    var _totalCount = 0;
    var _targetData = null;

    this.startProcessData = function (targetData) {
        _targetData = targetData;
        if (_targetData == null || _targetData.length == 0)
            return;
        _totalCount = _targetData.length;
        _processedCount = 0;
        _currentIndex = 0;
        Xrm.Utility.showProgressIndicator("processing....");
        for (var index = 0; index < _concurrency; index++) {
            processNextData();
        }
    }
    function processNextData () {
        var nextData = getNextData();
        if (nextData != null) {
            executeBusinessLogic(nextData);
        }
    }
    function executeBusinessLogic(data) {
        var data =
        {
            "lastname": data.name
        }
        Xrm.WebApi.createRecord("contact", data).then(
            function success(result) {
                processOneDataFinished(true);
            },
            function (error) {
                console.log(error.message);
                processOneDataFinished(false);
            }
        );
    }
    function getNextData() {
        if (_currentIndex < _targetData.length) {
            return _targetData[_currentIndex++];
        } else {
            return null;
        }
    }
    function processOneDataFinished(success) {
        _processedCount++;
        console.log("processed count:" + _processedCount + ",processing count:" + (_currentIndex - _processedCount));

 

        if (_processedCount >= _totalCount) {
            processAllDataFinished();
        } else {
            Xrm.Utility.showProgressIndicator(_processedCount + "/" + _totalCount);
            processNextData();
        }
    }
    function processAllDataFinished() {
        console.log("all data finished");
        Xrm.Utility.closeProgressIndicator();
    }
}).call(contoso.multithreadsample || (contoso.multithreadsample = {}));

//#region test
var targetData = [
    { name: "test1" },
    { name: "test2" },
    { name: "test3" },
    { name: "test4" },
    { name: "test5" },
    { name: "test6" },
    { name: "test7" },
    { name: "test8" },
    { name: "test9" },
    { name: "test10" }
];
contoso.multithreadsample.startProcessData(targetData);
//#endregion

上記のコードはブラウザのコンソールで実行可能です。
上記のサンプルは、大量なデータの登録のサンプルになりますが、JavascriptからCustomActionまたはCustomApiを呼び出して、さらに機能を拡張することが可能です。
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