117 lines
2.5 KiB
JavaScript
117 lines
2.5 KiB
JavaScript
/*
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* Registry
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*
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* The Registry contains references to all Drivers and Adaptors Cylon is aware
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* of, along with which module they live in (e.g. cylon-firmata).
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*
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* cylonjs.com
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*
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* Copyright (c) 2013-2014 The Hybrid Group
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* Licensed under the Apache 2.0 license.
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*/
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"use strict";
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var Logger = require("./logger");
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// Explicitly these modules here, so Browserify can grab them later
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require("./test/loopback");
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require("./test/test-adaptor");
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require("./test/test-driver");
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require("./test/ping");
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var missingModuleError = function(module) {
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var str = "Cannot find the '" + module + "' module.\n";
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str += "This problem might be fixed by installing it with ";
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str +="'npm install " + module + "' and trying again.";
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console.log(str);
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process.emit("SIGINT");
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};
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var Registry = module.exports = {
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data: {},
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register: function(module) {
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if (this.data[module]) {
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return;
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}
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var pkg;
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try {
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pkg = require(module);
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} catch (e) {
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if (e.code === "MODULE_NOT_FOUND") {
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missingModuleError(module);
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}
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throw e;
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}
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this.data[module] = {
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module: pkg,
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adaptors: pkg.adaptors || [],
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drivers: pkg.drivers || [],
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dependencies: pkg.dependencies || []
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};
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this.logRegistration(module, this.data[module]);
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this.data[module].dependencies.forEach(function(dep) {
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Registry.register(dep);
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});
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return this.data[module].module;
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},
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findByAdaptor: function(adaptor) {
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return this.search("adaptors", adaptor);
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},
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findByDriver: function(driver) {
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return this.search("drivers", driver);
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},
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findByModule: function(module) {
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if (!this.data[module]) {
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return null;
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}
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return this.data[module].module;
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},
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logRegistration: function(name) {
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var module = this.data[name];
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Logger.debug("Registering module " + name);
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["adaptors", "drivers", "dependencies"].forEach(function(field) {
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if (module[field].length) {
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Logger.debug(" " + field + ":");
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module[field].forEach(function(item) {
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Logger.debug(" - " + item);
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});
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}
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});
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},
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search: function(entry, value) {
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for (var name in this.data) {
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var repo = this.data[name];
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if (~repo[entry].indexOf(value)) {
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return repo.module;
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}
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}
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return false;
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}
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};
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// Default drivers/adaptors:
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["loopback", "ping", "test-adaptor", "test-driver"].forEach(function(module) {
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Registry.register("./test/" + module);
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});
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