refactor: rename core package and remove exporter namespaces: types and classes (#61)

* refactor: rename core package to @opencensus/core and remove export namespaces: types and classes

* refactor: changes to address review comments PR #61

* refactor: changes to address remaining review comments PR #61

* chore: fix @types/node dep

Author: fabiogomessilva

packages/opencensus-core/package.json

@@ -1,5 +1,5 @@
 {
-  "name": "@opencensus/opencensus-core",
+  "name": "@opencensus/core",
   "version": "0.0.2",
   "description": "OpenCensus is a toolkit for collecting application performance and behavior data.",
   "main": "build/src/index.js",

packages/opencensus-core/src/common/console-logger.ts

@@ -106,10 +106,8 @@ export class ConsoleLogger implements types.Logger {
  * https://github.com/cainus/logdriver/blob/bba1761737ca72f04d6b445629848538d038484a/index.js#L50
  * @param options A logger options or strig to logger in console
  */
-// tslint:disable-next-line:no-any
-const logger: any =
-    (options?: types.LoggerOptions|string|number): types.Logger => {
-      return new ConsoleLogger(options);
-    };
+const logger = (options?: types.LoggerOptions|string|number): types.Logger => {
+  return new ConsoleLogger(options);
+};
 
 export {logger};

packages/opencensus-core/src/index-classes.ts

@@ -15,8 +15,31 @@
  */
 
 
-import * as logger from './common/console-logger';
-import * as classes from './index-classes';
-import * as types from './index-types';
+// types
+export * from './trace/types';
+export * from './trace/model/types';
+export * from './trace/config/types';
+export * from './trace/sampler/types';
+export * from './trace/instrumentation/types';
+export * from './trace/propagation/types';
+export * from './exporters/types';
+export * from './common/types';
+
+// classes
+
+// domain models impls
+export * from './trace/model/tracer';
+
+// sampler impl
+export * from './trace/sampler/sampler';
 
-export {classes, logger, types};
+// base instrumetation class
+export * from './trace/instrumentation/base-plugin';
+
+// console exporter and buffer impls
+export * from './exporters/exporter-buffer';
+export * from './exporters/console-exporter';
+
+// logger
+import * as logger from './common/console-logger';
+export {logger};

packages/opencensus-core/src/index-types.ts

@@ -32,6 +32,8 @@ export class RootSpan extends SpanBase implements types.RootSpan {
   private spansLocal: types.Span[];
   /** It's trace ID. */
   private traceIdLocal: string;
+  /** set isRootSpan = true */
+  readonly isRootSpan = true;
 
   /**
    * Constructs a new RootSpanImpl instance.

packages/opencensus-core/src/index.ts

@@ -53,6 +53,8 @@ export abstract class SpanBase implements types.Span {
   kind: string = null;
   /** A final status for this span */
   status: number;
+  /** set isRootSpan  */
+  abstract get isRootSpan(): boolean;
 
   /** Constructs a new SpanBaseModel instance. */
   constructor() {

packages/opencensus-core/src/trace/model/root-span.ts

@@ -23,6 +23,8 @@ import * as types from './types';
 /** Defines a Span. */
 export class Span extends SpanBase implements types.Span {
   private root: types.RootSpan;
+  /** set isRootSpan = true */
+  readonly isRootSpan = false;
 
   /**
    * Constructs a new SpanImpl instance.

packages/opencensus-core/src/trace/model/span-base.ts

@@ -19,7 +19,7 @@ import * as loggerTypes from '../../common/types';
 import * as cls from '../../internal/cls';
 import * as configTypes from '../config/types';
 import {Propagation} from '../propagation/types';
-import {Sampler} from '../sampler/sampler';
+import {SamplerBuilder} from '../sampler/sampler';
 import * as samplerTypes from '../sampler/types';
 
 import {RootSpan} from './root-span';
@@ -30,7 +30,7 @@ import * as types from './types';
 /**
  * This class represent a tracer.
  */
-export class Tracer implements types.Tracer {
+export class CoreTracer implements types.Tracer {
   /** Indicates if the tracer is active */
   private activeLocal: boolean;
   /** Manage context automatic propagation */
@@ -81,7 +81,7 @@ export class Tracer implements types.Tracer {
     this.activeLocal = true;
     this.config = config;
     this.logger = this.config.logger || logger.logger();
-    this.sampler = new Sampler().probability(config.samplingRate);
+    this.sampler = SamplerBuilder.getSampler(config.samplingRate);
     return this;
   }
 

packages/opencensus-core/src/trace/model/span.ts

@@ -123,6 +123,9 @@ export interface Span {
   /** Pointers from the current span to another span */
   links: Link[];
 
+  /** true if span is a RootSpan */
+  isRootSpan: boolean;
+
   /** Constructs a new SpanBaseModel instance. */
   readonly traceId: string;
 
@@ -202,12 +205,6 @@ export interface RootSpan extends Span {
   /** Get the span list from RootSpan instance */
   readonly spans: Span[];
 
-  /** Starts the RootSpan instance */
-  start(): void;
-
-  /** Ends the RootSpan instance */
-  end(): void;
-
   /** Starts a new Span instance in the RootSpan instance */
   startChildSpan(name: string, type: string): Span;
 }