[misc] fix module importing

libraries/metrics/event_loop.js

@@ -9,7 +9,7 @@ module.exports = (EventLoopMonitor = {
 	monitor(logger, interval, log_threshold) {
 		if (interval == null) { interval = 1000; }
 		if (log_threshold == null) { log_threshold = 100; }
-		const Metrics = require("./metrics");
+		const Metrics = require("./index");
 		// check for logger on startup to avoid exceptions later if undefined
 		if ((logger == null)) { throw new Error("logger is undefined"); }
 		// monitor delay in setInterval to detect event loop blocking

libraries/metrics/http.js

@@ -11,7 +11,7 @@ const yn = require("yn");
 const STACKDRIVER_LOGGING = yn(process.env['STACKDRIVER_LOGGING']);
 
 module.exports.monitor = logger => (function(req, res, next) {
-    const Metrics = require("./metrics");
+    const Metrics = require("./index");
     const startTime = process.hrtime();
     const {
         end

libraries/metrics/memory.js

@@ -73,13 +73,13 @@ module.exports = (MemoryMonitor = {
 	monitor(logger) {
 		const interval = setInterval(() => MemoryMonitor.Check(logger)
 		, oneMinute);
-		const Metrics = require("./metrics");
+		const Metrics = require("./index");
 		return Metrics.registerDestructor(() => clearInterval(interval));
 	},
 
 	Check(logger) {
 		let mem;
-		const Metrics = require("./metrics");
+		const Metrics = require("./index");
 		const memBeforeGc = (mem = inMegaBytes(process.memoryUsage()));
 		Metrics.gauge("memory.rss", mem.rss);
 		Metrics.gauge("memory.heaptotal", mem.heapTotal);

libraries/metrics/mongodb.js

@@ -21,7 +21,7 @@ module.exports = {
 			mongodbCore = require(v2_path);
 		} catch (error1) {}
 
-		const Metrics = require("./metrics");
+		const Metrics = require("./index");
 
 		const monitorMethod = function(base, method, type) {
 			let _method;

libraries/metrics/open_sockets.js

@@ -19,13 +19,13 @@ module.exports = (OpenSocketsMonitor = {
 	monitor(logger) {
 		const interval = setInterval(() => OpenSocketsMonitor.gaugeOpenSockets()
 		, 5 * seconds);
-		const Metrics = require("./metrics");
+		const Metrics = require("./index");
 		return Metrics.registerDestructor(() => clearInterval(interval));
 	},
 
 	gaugeOpenSockets() {
 		let agents, hostname, url;
-		const Metrics = require("./metrics");
+		const Metrics = require("./index");
 		const object = require('http').globalAgent.sockets;
 		for (url in object) {
 			agents = object[url];

libraries/metrics/test/unit/js/event_loop.js

@@ -24,7 +24,7 @@ describe('event_loop', function() {
 			warn: sinon.stub()
 		};
 		return this.event_loop = SandboxedModule.require(modulePath, { requires: {
-			'./metrics': this.metrics
+			'./index': this.metrics
 		}
 	}
 		);

libraries/metrics/test/unit/js/timeAsyncMethodTests.js

@@ -25,7 +25,7 @@ describe('timeAsyncMethod', function() {
 			inc: sinon.stub()
 		};
 		this.timeAsyncMethod = SandboxedModule.require(modulePath, { requires: {
-			'./metrics': this.metrics
+			'./index': this.metrics
 		}
 	}
 		);

libraries/metrics/timeAsyncMethod.js

@@ -9,7 +9,7 @@
 
 module.exports = function(obj, methodName, prefix, logger) {
 	let modifedMethodName;
-	const metrics = require('./metrics');
+	const metrics = require('./index');
 
 	if (typeof obj[methodName] !== 'function') {
 		throw new Error(`[Metrics] expected object property '${methodName}' to be a function`);