pip-services3-commons-node
Version:
Portable abstractions and patterns for Pip.Services in Node.js
69 lines • 2.24 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
/** @module run */
/** @hidden */
var _ = require('lodash');
/** @hidden */
var async = require('async');
/**
* Helper class that cleans stored object state.
*
* @see [[ICleanable]]
*/
var Cleaner = /** @class */ (function () {
function Cleaner() {
}
/**
* Clears state of specific component.
*
* To be cleaned state components must implement [[ICleanable]] interface.
* If they don't the call to this method has no effect.
*
* @param correlationId (optional) transaction id to trace execution through call chain.
* @param component the component that is to be cleaned.
* @param callback callback function that returns error or null no errors occured.
*
* @see [[ICleanable]]
*/
Cleaner.clearOne = function (correlationId, component, callback) {
if (_.isFunction(component.clear)) {
try {
component.clear(correlationId);
}
catch (err) {
if (callback)
callback(err);
else
throw err;
}
}
else if (callback)
callback(null);
};
/**
* Clears state of multiple components.
*
* To be cleaned state components must implement [[ICleanable]] interface.
* If they don't the call to this method has no effect.
*
* @param correlationId (optional) transaction id to trace execution through call chain.
* @param components the list of components that are to be cleaned.
* @param callback callback function that returns error or null no errors occured.
*
* @see [[clearOne]]
* @see [[ICleanable]]
*/
Cleaner.clear = function (correlationId, components, callback) {
async.eachSeries(components, function (component, callback) {
Cleaner.clearOne(correlationId, component, callback);
}, function (err) {
if (callback)
callback(err);
else if (err)
throw err;
});
};
return Cleaner;
}());
exports.Cleaner = Cleaner;
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