MqttDispatcher/dist/callchain.js

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const log = require("./log");
const events = require("events");
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class LastChainItem {
begin() {
}
send(message) {
log.info(`Last chain item, final result ${message}`);
}
}
let lastChainItem = new LastChainItem();
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class AChainItem extends events.EventEmitter {
constructor(label) {
super();
this._label = label;
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this._next = lastChainItem;
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}
toString() {
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return `<${this._label}>`;
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}
registerNext(next) {
this._next = next;
}
send(message) {
this.emit('yourturn', message);
}
}
exports.AChainItem = AChainItem;
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class ABaseChainItem extends AChainItem {
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constructor(label) {
super(label);
}
begin() {
if (this._next != null) {
this._next.begin();
}
this.addListener('yourturn', (message) => {
log.info(`Calling ${this.toString()}`);
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let result = this.func(message);
this._next.send(result);
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});
}
}
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exports.ABaseChainItem = ABaseChainItem;
class ChainItem extends ABaseChainItem {
toString() {
let funcName = (this._chainItemFunc.name === "") ? "lambda" : this._chainItemFunc.name;
return `<${funcName}, ${this._label}>`;
}
registerFunc(func) {
this._chainItemFunc = func;
}
func(message) {
return this._chainItemFunc(message);
}
}
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exports.ChainItem = ChainItem;
//# sourceMappingURL=callchain.js.map