mirror of https://github.com/embarklabs/embark.git
51 lines
1.7 KiB
JavaScript
51 lines
1.7 KiB
JavaScript
const fs = require('../../core/fs');
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const utils = require('../../utils/utils');
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const ProcessLauncher = require('../../process/processLauncher');
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const constants = require('../../constants');
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class StorageProcessesLauncher {
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constructor(options) {
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this.logger = options.logger;
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this.events = options.events;
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this.storageConfig = options.storageConfig;
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this.processes = {};
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}
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processExited(storageName, code) {
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this.logger.error(__(`Storage process for ${storageName} ended before the end of this process. Code: ${code}`));
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}
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launchProcess(storageName, callback) {
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const self = this;
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if (self.processes[storageName]) {
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return callback(__('Storage process already started'));
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}
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const filePath = utils.joinPath(__dirname, `./${storageName}.js`);
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fs.access(filePath, (err) => {
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if (err) {
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callback(__('No process file for this storage type exists. Please start the process locally.'));
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}
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self.logger.info(__(`Starting ${storageName} process`).cyan);
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self.processes[storageName] = new ProcessLauncher({
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modulePath: filePath,
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logger: self.logger,
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events: self.events,
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silent: true,
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exitCallback: self.processExited.bind(this, storageName)
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});
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self.processes[storageName].send({action: constants.blockchain.init, options: {storageConfig: self.storageConfig}});
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self.processes[storageName].on('result', constants.storage.initiated, (msg) => {
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if (msg.error) {
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self.processes[storageName].disconnect();
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delete self.processes[storageName];
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return callback(msg.error);
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}
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callback();
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});
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});
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}
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}
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module.exports = StorageProcessesLauncher;
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