Move sampler.ts from model to config

Author: silva-fabio

examples/README.md

@@ -52,7 +52,7 @@ Successfully connected to the database
 
 ## Add opencensus instrumentation 
 
-To add opencensus instrumetation, follow the step below:
+To add opencensus instrumetation, follow the steps below:
 
 1. Navigate to the `node_modules` folder inside the EasyNotes application and create a link to OpenCensus Node project folder with:
 ```bash
@@ -66,8 +66,7 @@ cd ..
  var tracing = require("opencensus-nodejs").start()
  ...
  var express = require('express');
- ```
-
+```
 
 ## Running the Instrumented Application
 

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

@@ -20,7 +20,6 @@ import * as uuid from 'uuid';
 import { debug } from '../../internal/util'
 import { SpanBaseModel, TraceOptions, TraceContext, OnEndSpanEventListener } from '../types/tracetypes'
 import { Tracer } from './tracer'
-import { Sampler } from './sampler'
 
 export class RootSpan extends SpanBaseModel implements OnEndSpanEventListener {
 

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

@@ -22,7 +22,7 @@ import { Stackdriver } from '../../exporters/stackdriver/stackdriver'
 import { StackdriverOptions } from '../../exporters/stackdriver/options'
 import { TraceContext, TraceOptions, OnEndSpanEventListener } from '../types/tracetypes';
 import {  TracerConfig, defaultConfig } from '../tracing';
-import { Sampler } from './sampler'
+import { Sampler } from '../config/sampler'
 
 export type Func<T> = (...args: any[]) => T;
 

packages/opencensus-core/src/trace/sampler/sampler.ts

@@ -44,17 +44,17 @@ export class Sampler{
 
      }
 
-     public always():Sampler{
+     public always(): Sampler{
          this.idUpperBound = maxNumber;
          return this;
      }
 
-     public never():Sampler{
+     public never(): Sampler{
          this.idUpperBound = minNumber;
          return this;
      }
 
-     public probability(probability:number):Sampler{
+     public probability(probability:number): Sampler{
         if(probability < minNumber){
             return this.never();
 

packages/opencensus-core/src/trace/types/tracetypes.ts

@@ -16,7 +16,7 @@
 
 import { Clock } from '../../internal/clock'
 import { debug, randomSpanId } from '../../internal/util'
-import { Sampler } from '../model/sampler'
+import { Sampler } from '../config/sampler'
 
 
 export interface MapLabels { [propName: string]: string; }
@@ -38,6 +38,14 @@ export interface OnEndSpanEventListener {
     onEndSpan(span: SpanBaseModel): void; 
 }
 
+export interface SpanData {
+    labels: {[key: string]: string};
+    name: string;
+    spanId: string;
+    parentSpanId?: string;
+  }
+
+
 export abstract class SpanBaseModel {
 
     protected _className: string;