Els Service: get Artists

- Take number of month
- Extract method to treat bucket

dashboard/.angular-cli.json

@@ -0,0 +1,63 @@
+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "project": {
+    "name": "dashboard"
+  },
+  "apps": [
+    {
+      "root": "src",
+      "outDir": "dist",
+      "assets": [
+        "assets",
+        "favicon.ico"
+      ],
+      "index": "index.html",
+      "main": "main.ts",
+      "polyfills": "polyfills.ts",
+      "test": "test.ts",
+      "tsconfig": "tsconfig.app.json",
+      "testTsconfig": "tsconfig.spec.json",
+      "prefix": "app",
+      "styles": [
+        "styles.css",
+        "../node_modules/bootstrap/dist/css/bootstrap.min.css"
+      ],
+      "scripts": [
+        "../node_modules/angular4-word-cloud/d3.min.js"
+      ],
+      "environmentSource": "environments/environment.ts",
+      "environments": {
+        "dev": "environments/environment.ts",
+        "prod": "environments/environment.prod.ts"
+      }
+    }
+  ],
+  "e2e": {
+    "protractor": {
+      "config": "./protractor.conf.js"
+    }
+  },
+  "lint": [
+    {
+      "project": "src/tsconfig.app.json",
+      "exclude": "**/node_modules/**"
+    },
+    {
+      "project": "src/tsconfig.spec.json",
+      "exclude": "**/node_modules/**"
+    },
+    {
+      "project": "e2e/tsconfig.e2e.json",
+      "exclude": "**/node_modules/**"
+    }
+  ],
+  "test": {
+    "karma": {
+      "config": "./karma.conf.js"
+    }
+  },
+  "defaults": {
+    "styleExt": "css",
+    "component": {}
+  }
+}

dashboard/.editorconfig

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+# Editor configuration, see http://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false

dashboard/.gitignore

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+# See http://help.github.com/ignore-files/ for more about ignoring files.
+
+# compiled output
+/dist
+/tmp
+/out-tsc
+
+# dependencies
+/node_modules
+
+# IDEs and editors
+/.idea
+.project
+.classpath
+.c9/
+*.launch
+.settings/
+*.sublime-workspace
+
+# IDE - VSCode
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+
+# misc
+/.sass-cache
+/connect.lock
+/coverage
+/libpeerconnection.log
+npm-debug.log
+testem.log
+/typings
+yarn-error.log
+
+# e2e
+/e2e/*.js
+/e2e/*.map
+
+# System Files
+.DS_Store
+Thumbs.db

dashboard/e2e/app.e2e-spec.ts

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+import { AppPage } from './app.po';
+
+describe('dashboard App', () => {
+  let page: AppPage;
+
+  beforeEach(() => {
+    page = new AppPage();
+  });
+
+  it('should display welcome message', () => {
+    page.navigateTo();
+    expect(page.getParagraphText()).toEqual('Welcome to app!');
+  });
+});

dashboard/e2e/app.po.ts

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+import { browser, by, element } from 'protractor';
+
+export class AppPage {
+  navigateTo() {
+    return browser.get('/');
+  }
+
+  getParagraphText() {
+    return element(by.css('app-root h1')).getText();
+  }
+}

dashboard/e2e/tsconfig.e2e.json

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+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../out-tsc/e2e",
+    "baseUrl": "./",
+    "module": "commonjs",
+    "target": "es5",
+    "types": [
+      "jasmine",
+      "jasminewd2",
+      "node"
+    ]
+  }
+}

dashboard/karma.conf.js

@@ -0,0 +1,33 @@
+// Karma configuration file, see link for more information
+// https://karma-runner.github.io/1.0/config/configuration-file.html
+
+module.exports = function (config) {
+  config.set({
+    basePath: '',
+    frameworks: ['jasmine', '@angular/cli'],
+    plugins: [
+      require('karma-jasmine'),
+      require('karma-chrome-launcher'),
+      require('karma-jasmine-html-reporter'),
+      require('karma-coverage-istanbul-reporter'),
+      require('@angular/cli/plugins/karma')
+    ],
+    client:{
+      clearContext: false // leave Jasmine Spec Runner output visible in browser
+    },
+    coverageIstanbulReporter: {
+      reports: [ 'html', 'lcovonly' ],
+      fixWebpackSourcePaths: true
+    },
+    angularCli: {
+      environment: 'dev'
+    },
+    reporters: ['progress', 'kjhtml'],
+    port: 9876,
+    colors: true,
+    logLevel: config.LOG_INFO,
+    autoWatch: true,
+    browsers: ['Chrome'],
+    singleRun: false
+  });
+};

dashboard/package.json

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+{
+  "name": "dashboard",
+  "version": "0.0.0",
+  "license": "MIT",
+  "scripts": {
+    "ng": "ng",
+    "start": "ng serve",
+    "build": "ng build",
+    "test": "ng test",
+    "lint": "ng lint",
+    "e2e": "ng e2e"
+  },
+  "private": true,
+  "dependencies": {
+    "@angular/animations": "^4.2.4",
+    "@angular/common": "^4.2.4",
+    "@angular/compiler": "^4.2.4",
+    "@angular/core": "^4.2.4",
+    "@angular/forms": "^4.2.4",
+    "@angular/http": "^4.2.4",
+    "@angular/platform-browser": "^4.2.4",
+    "@angular/platform-browser-dynamic": "^4.2.4",
+    "@angular/router": "^4.2.4",
+    "angular-tag-cloud-module": "^1.4.0",
+    "angular4-word-cloud": "^0.1.2",
+    "bootstrap": "3.3.7",
+    "core-js": "^2.4.1",
+    "d3": "^4.11.0",
+    "rxjs": "^5.4.2",
+    "zone.js": "^0.8.14"
+  },
+  "devDependencies": {
+    "@angular/cli": "1.3.2",
+    "@angular/compiler-cli": "^4.2.4",
+    "@angular/language-service": "^4.2.4",
+    "@types/jasmine": "~2.5.53",
+    "@types/jasminewd2": "~2.0.2",
+    "@types/node": "~6.0.60",
+    "codelyzer": "~3.1.1",
+    "jasmine-core": "~2.6.2",
+    "jasmine-spec-reporter": "~4.1.0",
+    "karma": "~1.7.0",
+    "karma-chrome-launcher": "~2.1.1",
+    "karma-cli": "~1.0.1",
+    "karma-coverage-istanbul-reporter": "^1.2.1",
+    "karma-jasmine": "~1.1.0",
+    "karma-jasmine-html-reporter": "^0.2.2",
+    "protractor": "~5.1.2",
+    "ts-node": "~3.2.0",
+    "tslint": "~5.3.2",
+    "typescript": "~2.3.3"
+  }
+}

dashboard/protractor.conf.js

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+// Protractor configuration file, see link for more information
+// https://github.com/angular/protractor/blob/master/lib/config.ts
+
+const { SpecReporter } = require('jasmine-spec-reporter');
+
+exports.config = {
+  allScriptsTimeout: 11000,
+  specs: [
+    './e2e/**/*.e2e-spec.ts'
+  ],
+  capabilities: {
+    'browserName': 'chrome'
+  },
+  directConnect: true,
+  baseUrl: 'http://localhost:4200/',
+  framework: 'jasmine',
+  jasmineNodeOpts: {
+    showColors: true,
+    defaultTimeoutInterval: 30000,
+    print: function() {}
+  },
+  onPrepare() {
+    require('ts-node').register({
+      project: 'e2e/tsconfig.e2e.json'
+    });
+    jasmine.getEnv().addReporter(new SpecReporter({ spec: { displayStacktrace: true } }));
+  }
+};

dashboard/requestAlbum.txt

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+POST http://localhost:9200/itunessongs/album/_search
+content-type: application/json
+User-Agent: vscode-restclient
+
+{
+    "query": {
+        "match" : {
+            "Album" : {
+                "query": "Crystal Castles",
+                 "operator" : "and"
+            }
+        }
+    },
+    "size": 20
+}
+
+POST http://localhost:9200/itunessongs/song/_search
+content-type: application/json
+User-Agent: vscode-restclient
+
+{
+    "query": {
+        "match_phrase" : {
+            "Album" : "Crystal Castles"
+        }
+    },
+    "size": 20
+}
+
+POST http://localhost:9200/itunessongs/song/_search
+content-type: application/json
+User-Agent: vscode-restclient
+
+{
+    "query": {
+        "bool": {
+            "must": [
+                {"match_phrase" : { "Album" : "Crystal Castles" }},
+                {"match_phrase" : { "Artist" : "Crystal Castles" }}
+            ]
+        }
+    },
+    "size": 20
+}
+
+POST http://localhost:9200/itunessongs/song/_search
+content-type: application/json
+User-Agent: vscode-restclient
+
+{
+    "query": {
+        "bool": {
+            "must": {
+                "match_phrase" : { "Album" : "Crystal Castles" }
+            },
+            "should" : [
+                {"match_phrase" : { "Artist" : "Crystal Castles" }},
+                {"match_phrase" : { "Album Artist" : "Crystal Castles" }}
+            ]
+        }
+    },
+    "size": 20
+}

dashboard/src/app/album/album.component.css

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+/* Thank to https://codyhouse.co/gem/back-to-top/ */
+
+.btn-top {
+  display: inline-block;
+  height: 40px;
+  width: 40px;
+  position: fixed;
+  bottom: 20px;
+  right: 20px;
+  box-shadow: 0 0 10px rgba(0, 0, 0, 0.05);
+  /* image replacement properties */
+  /*overflow: hidden;*/
+  /*text-indent: 100%;*/
+  /*white-space: nowrap;*/
+  /*background: rgba(232, 98, 86, 0.8);*/
+  /*background: #ff9000;*/
+  visibility: hidden;
+  opacity: 0;
+  -webkit-transition: opacity .3s 0s, visibility 0s .3s;
+  -moz-transition: opacity .3s 0s, visibility 0s .3s;
+  transition: opacity .3s 0s, visibility 0s .3s;
+}
+.btn-top.btn-top-is-visible, .no-touch .btn-top:hover {
+  -webkit-transition: opacity .3s 0s, visibility 0s 0s;
+  -moz-transition: opacity .3s 0s, visibility 0s 0s;
+  transition: opacity .3s 0s, visibility 0s 0s;
+}
+.btn-top.btn-top-is-visible {
+  /* the button becomes visible */
+  visibility: visible;
+  opacity: 1;
+}
+
+.btn-sort {
+  bottom: 20px;
+  right: 70px;
+}

dashboard/src/app/album/album.component.html

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+<div class="container">
+  <h1>{{albumName}}</h1>
+
+  <div class="alert alert-warning">
+      <h3>Debug Zone</h3>
+      Returned song: {{songs.length}}<br />
+      Theorical number song: {{ album ? album['Track Count'] : ""  }}
+      <span *ngIf="album && (songs.length == album['Track Count'])" class="glyphicon glyphicon-ok" style="color:green"></span>
+      <span *ngIf="album && (songs.length != album['Track Count'])" class="glyphicon glyphicon-remove" style="color:red"></span>
+  </div>
+
+  <div class="row cardAdmin">
+      <div class="col-lg-3 col-md-3">
+          <div class="panel panel-yellow">
+              <div class="panel-heading">
+                  <div class="row">
+                      <div class="col-xs-3">
+                          <span class="glyphicon glyphicon-star stats_icon"></span>
+                      </div>
+                      <div class="col-xs-9 text-right">
+                          <div>
+                              <h3 *ngIf="!album"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                              <h3 *ngIf="album">{{album.Rating}}/100</h3>
+                          </div>
+                          <div><br>Rating</div>
+                      </div>
+                  </div>
+              </div>
+          </div>
+      </div>
+      <div class="col-lg-3 col-md-3">
+          <div class="panel panel-green">
+              <div class="panel-heading">
+                  <div class="row">
+                      <div class="col-xs-3">
+                          <span class="glyphicon glyphicon-list-alt stats_icon"></span>
+                      </div>
+                      <div class="col-xs-9 text-right">
+                          <div>
+                              <h3 *ngIf="!album"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                              <h3 *ngIf="album">{{album['Track Count']}}</h3>
+                          </div>
+                          <div><br>Songs</div>
+                      </div>
+                  </div>
+              </div>
+          </div>
+      </div>
+      <div class="col-lg-3 col-md-3">
+          <div class="panel panel-purple">
+              <div class="panel-heading">
+                  <div class="row">
+                      <div class="col-xs-3">
+                          <span class="glyphicon glyphicon-headphones stats_icon"></span>
+                      </div>
+                      <div class="col-xs-9 text-right">
+                          <div>
+                              <h3 *ngIf="!album"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                              <h3 *ngIf="album">{{album['Play Count']}} list.</h3>
+                          </div>
+                          <div><br>~{{album['Play Count'] / album['Track Count'] | number:'1.0-0'}} listening avg.</div>
+                      </div>
+                  </div>
+              </div>
+          </div>
+      </div>
+      <div class="col-lg-3 col-md-3">
+          <div class="panel panel-blue">
+              <div class="panel-heading">
+                  <div class="row">
+                      <div class="col-xs-3">
+                          <span class="glyphicon glyphicon-time stats_icon"></span>
+                      </div>
+                      <div class="col-xs-9 text-right">
+                          <div>
+                              <h3 *ngIf="!album"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                              <h3 *ngIf="album">{{album['Total Time'] | convertMs}}</h3>
+                          </div>
+                          <div><br>Album time</div>
+                      </div>
+                  </div>
+              </div>
+          </div>
+      </div>
+  </div>
+
+  <table class="table table-striped" (window:scroll)="onScroll($event)">
+  <thead>
+      <tr>
+          <th></th>
+          <th>Name</th>
+          <th>Artist</th>
+          <th>Album</th>
+          <th>Album Artist</th>
+          <th>Play Count</th>
+          <th>Genre</th>
+      </tr>
+  </thead>
+  <tbody>
+      <tr *ngFor="let song of songs | sortBy : 'Track Number'">
+          <td>{{song['Track Number'] ? (("0" + song['Track Number']).slice(-2)) : "--"}}</td>
+          <td>{{song.Name}}</td>
+          <td><a [routerLink]="['/artist', song.Artist]">{{song.Artist}}</a></td>
+          <td><a [routerLink]="['/album', song.Album]">{{song.Album}}</a></td>
+          <td>{{song['Album Artist']}}</td>
+          <td>{{song['Play Count']}}</td>
+          <td><a [routerLink]="['/genre', song.Genre]">{{song.Genre}}</a></td>
+      </tr>
+  </tbody>
+  </table>
+
+  <button type="button" *ngIf="moreDataAvailable" class="btn btn-default" aria-label="More" (click)="loadSongs()">
+      <span class="glyphicon glyphicon-plus" aria-hidden="true"></span> More...
+  </button>
+
+  <!-- Go to Top Button-->
+  <button type="button" class="btn btn-warning btn-top" [class.btn-top-is-visible]="atBottom"
+      aria-label="Top" (click)="scrollTop()">
+      <span class="glyphicon glyphicon-menu-up" aria-hidden="true"></span>
+  </button>
+  </div>

dashboard/src/app/album/album.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { AlbumComponent } from './album.component';
+
+describe('AlbumComponent', () => {
+  let component: AlbumComponent;
+  let fixture: ComponentFixture<AlbumComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ AlbumComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(AlbumComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should be created', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashboard/src/app/album/album.component.ts

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+import { Component, OnInit } from '@angular/core';
+import { ActivatedRoute, Params } from '@angular/router';
+import { Location } from '@angular/common';
+
+import { ElsService } from './../els.service';
+import { Song } from './../object/song';
+import { Album } from './../object/album';
+
+@Component({
+  selector: 'app-album',
+  templateUrl: './album.component.html',
+  styleUrls: [ './album.component.css', './../dashboard.component.css' ]
+})
+
+export class AlbumComponent implements OnInit {
+  albumName = '';
+  songs: Array<Song> = [];
+  album: Album = new Album(); // If album not found, will be replaced by 'undefined'
+  moreDataAvailable = false;
+  atBottom = false;
+
+  constructor(
+    private elsService: ElsService,
+    private route: ActivatedRoute,
+    private location: Location
+  ) { }
+
+  ngOnInit(): void {
+    this.route.params
+      .subscribe((params: Params) => this.albumName = params['name']);
+
+    this.loadSongs();
+
+    this.elsService.getAlbum(this.albumName).subscribe(data => this.album = data);
+  }
+
+  loadSongs(): void {
+    this.elsService.getAlbumSongs(this.albumName, this.songs.length).subscribe(
+      data => {
+        this.moreDataAvailable = data.length === ElsService.DEFAULT_SIZE;
+
+        // Erase song array with result for first load, then add elements one by one
+        // instead use concat => concat will sort table at each load, very consuming! and not user friendly
+        if (this.songs.length === 0) {
+          this.songs = data;
+        } else {
+          data.forEach(song => {
+            this.songs.push(song);
+          });
+        }
+      }
+    );
+  }
+
+  scrollTop(): void {
+    window.scrollTo(0, 0);
+  }
+
+  /**
+   * Handle scroll:
+   * - load data if at bottom of screen (if needed)
+   * - hide/show "go to top" button
+   *
+   * @param event scroll event
+   */
+  onScroll(event: any) {
+    if (this.moreDataAvailable &&
+          (window.innerHeight + window.scrollY) >= document.body.offsetHeight) {
+        this.loadSongs();
+    }
+
+    if (window.scrollY > window.innerHeight) {
+      this.atBottom = true;
+    }
+
+    if (window.scrollY === 0) {
+      this.atBottom = false;
+    }
+  }
+}

dashboard/src/app/app-routing.module.ts

@@ -0,0 +1,22 @@
+import { NgModule } from '@angular/core';
+import { RouterModule, Routes } from '@angular/router';
+
+import { DashboardComponent } from './dashboard.component';
+import { AlbumComponent } from './album/album.component';
+import { ArtistComponent } from './artist/artist.component';
+import { GenreComponent } from './genre/genre.component';
+
+const routes: Routes = [
+  { path: '', redirectTo: '/dashboard', pathMatch: 'full' },
+  { path: 'dashboard',  component: DashboardComponent },
+  { path: 'album/:name',      component: AlbumComponent },
+  { path: 'artist/:name',      component: ArtistComponent },
+  { path: 'genre/:name',      component: GenreComponent }
+];
+
+@NgModule({
+  imports: [ RouterModule.forRoot(routes) ],
+  exports: [ RouterModule ]
+})
+
+export class AppRoutingModule {}

dashboard/src/app/app.component.css

@@ -0,0 +1,45 @@
+h1 {
+  font-size: 1.2em;
+  color: #999;
+  margin-bottom: 0;
+}
+
+h2 {
+  font-size: 2em;
+  margin-top: 0;
+  padding-top: 0;
+}
+
+nav a {
+  padding: 5px 10px;
+  text-decoration: none;
+  margin-top: 10px;
+  margin-left: 10px;
+  display: inline-block;
+  background-color: #eee;
+  border-radius: 4px;
+}
+/*
+nav a:visited, a:link {
+  color: #607D8B;
+}
+
+nav a:hover {
+  color: #039be5;
+  background-color: #CFD8DC;
+}
+
+nav a.active {
+  color: #039be5;
+} */
+
+
+/* FIXME Code Repetition  */
+.btn-top {
+  display: inline-block;
+  position: fixed;
+  z-index: 1;
+  -webkit-transition: opacity .3s 0s, visibility 0s 0s;
+  -moz-transition: opacity .3s 0s, visibility 0s 0s;
+  transition: opacity .3s 0s, visibility 0s 0s;
+}

dashboard/src/app/app.component.html

@@ -0,0 +1,4 @@
+<nav>
+  <a class="btn-top" routerLink="/dashboard" routerLinkActive="active"><span class="glyphicon glyphicon-home"></span></a>
+</nav>
+<router-outlet></router-outlet>

dashboard/src/app/app.component.spec.ts

@@ -0,0 +1,32 @@
+import { TestBed, async } from '@angular/core/testing';
+
+import { AppComponent } from './app.component';
+
+describe('AppComponent', () => {
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [
+        AppComponent
+      ],
+    }).compileComponents();
+  }));
+
+  it('should create the app', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app).toBeTruthy();
+  }));
+
+  it(`should have as title 'app'`, async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    const app = fixture.debugElement.componentInstance;
+    expect(app.title).toEqual('app');
+  }));
+
+  it('should render title in a h1 tag', async(() => {
+    const fixture = TestBed.createComponent(AppComponent);
+    fixture.detectChanges();
+    const compiled = fixture.debugElement.nativeElement;
+    expect(compiled.querySelector('h1').textContent).toContain('Welcome to app!');
+  }));
+});

dashboard/src/app/app.component.ts

@@ -0,0 +1,10 @@
+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-root',
+  templateUrl: './app.component.html',
+  styleUrls: ['./app.component.css']
+})
+export class AppComponent {
+  title = 'app';
+}

dashboard/src/app/app.module.ts

@@ -0,0 +1,43 @@
+import { NgModule } from '@angular/core';
+import { BrowserModule } from '@angular/platform-browser';
+import { HttpModule } from '@angular/http';
+
+import { TagCloudModule } from 'angular-tag-cloud-module';
+import { AgWordCloudModule } from 'angular4-word-cloud';
+
+import { AppComponent } from './app.component';
+import { DashboardComponent } from './dashboard.component';
+import { AlbumComponent } from './album/album.component';
+import { ArtistComponent } from './artist/artist.component';
+import { GenreComponent } from './genre/genre.component';
+
+import { ElsService } from './els.service';
+
+import { AppRoutingModule } from './app-routing.module';
+
+import { ConvertMsPipe } from './convertms.pipe';
+import { SortByPipe } from './sort-by.pipe';
+
+@NgModule({
+  imports: [
+    BrowserModule,
+    HttpModule,
+    TagCloudModule,
+    AgWordCloudModule.forRoot(),
+    AppRoutingModule
+  ],
+  declarations: [
+    AppComponent,
+    DashboardComponent,
+    AlbumComponent,
+    ArtistComponent,
+    GenreComponent,
+    ConvertMsPipe,
+    SortByPipe
+  ],
+  providers: [
+    ElsService
+  ],
+  bootstrap: [ AppComponent ]
+})
+export class AppModule { }

dashboard/src/app/artist/artist.component.html

@@ -0,0 +1,128 @@
+<div class="container">
+  <h1>{{artistName}}</h1>
+
+  <div class="alert alert-warning">
+      <h3>Debug Zone</h3>
+      Returned song: {{songs.length}}<br />
+      Theorical song: {{ artist ? artist['Track Count'] : ""  }}
+      <span *ngIf="artist && (songs.length == artist['Track Count'])" class="glyphicon glyphicon-ok" style="color:green"></span>
+      <span *ngIf="artist && (songs.length != artist['Track Count'])" class="glyphicon glyphicon-remove" style="color:red"></span>
+  </div>
+
+  <div class="row cardAdmin">
+      <div class="col-lg-3 col-md-3">
+          <div class="panel panel-yellow">
+              <div class="panel-heading">
+                  <div class="row">
+                      <div class="col-xs-3">
+                          <span class="glyphicon glyphicon-star stats_icon"></span>
+                      </div>
+                      <div class="col-xs-9 text-right">
+                          <div>
+                              <h3 *ngIf="!artist"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                              <h3 *ngIf="artist">{{artist.Rating}}/100</h3>
+                          </div>
+                          <div>Rating</div>
+                      </div>
+                  </div>
+              </div>
+          </div>
+      </div>
+      <div class="col-lg-3 col-md-3">
+          <div class="panel panel-blue">
+              <div class="panel-heading">
+                  <div class="row">
+                      <div class="col-xs-3">
+                          <span class="glyphicon glyphicon-cd stats_icon"></span>
+                      </div>
+                      <div class="col-xs-9 text-right">
+                          <div>
+                              <h3 *ngIf="!artist"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                              <h3 *ngIf="artist">{{artist.Album?.length}}</h3>
+                          </div>
+                          <div>Albums</div>
+                      </div>
+                  </div>
+              </div>
+          </div>
+      </div>
+      <div class="col-lg-3 col-md-3">
+          <div class="panel panel-green">
+              <div class="panel-heading">
+                  <div class="row">
+                      <div class="col-xs-3">
+                          <span class="glyphicon glyphicon-list-alt stats_icon"></span>
+                      </div>
+                      <div class="col-xs-9 text-right">
+                          <div>
+                              <h3 *ngIf="!artist"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                              <h3 *ngIf="artist">{{artist['Track Count']}}</h3>
+                          </div>
+                          <div>Songs</div>
+                      </div>
+                  </div>
+              </div>
+          </div>
+      </div>
+      <div class="col-lg-3 col-md-3">
+          <div class="panel panel-purple">
+              <div class="panel-heading">
+                  <div class="row">
+                      <div class="col-xs-3">
+                          <span class="glyphicon glyphicon-headphones stats_icon"></span>
+                      </div>
+                      <div class="col-xs-9 text-right">
+                          <div>
+                              <h3 *ngIf="!artist"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                              <h3 *ngIf="artist">{{artist['Play Count']}} list.</h3>
+                          </div>
+                          <div *ngIf="artist">~{{artist['Play Count'] / artist['Track Count'] | number:'1.0-0'}} listening avg.</div>
+                          <div *ngIf="!artist">Listening</div>
+                      </div>
+                  </div>
+              </div>
+          </div>
+      </div>
+  </div>
+
+  <table class="table table-striped" (window:scroll)="onScroll($event)">
+  <thead>
+      <tr>
+          <th></th>
+          <th>Name</th>
+          <th>Album</th>
+          <th>Year</th>
+          <th>Artist</th>
+          <th>Album Artist</th>
+          <th>Play Count</th>
+          <th>Genre</th>
+      </tr>
+  </thead>
+  <tbody>
+      <tr *ngFor="let song of songs | sortBy : 'Year':'Album':'Track Number'">
+          <td>{{song['Track Number'] ? (("0" + song['Track Number']).slice(-2)) : "--"}}</td>
+          <td>{{song.Name}}</td>
+          <td><a [routerLink]="['/album', song.Album]">{{song.Album}}</a></td>
+          <td>{{song.Year}}</td>
+          <td><a [routerLink]="['/artist', song.Artist]">{{song.Artist}}</a></td>
+          <td>{{song['Album Artist'] ? song['Album Artist'] : "-" }}</td>
+          <td>{{song['Play Count']}}</td>
+          <td><a [routerLink]="['/genre', song.Genre]">{{song.Genre}}</a></td>
+      </tr>
+  </tbody>
+  </table>
+
+  <button type="button" *ngIf="moreDataAvailable" class="btn btn-default" aria-label="More" (click)="loadSongs()">
+      <span class="glyphicon glyphicon-plus" aria-hidden="true"></span> More...
+  </button>
+
+  <!-- Go to Top Button-->
+  <button type="button" class="btn btn-warning btn-top" [class.btn-top-is-visible]="atBottom"
+      aria-label="Top" (click)="scrollTop()" title="Go back to Top!">
+      <span class="glyphicon glyphicon-menu-up" aria-hidden="true"></span>
+  </button>
+  <button type="button" class="btn btn-primary btn-top btn-sort" [class.btn-top-is-visible]="sortable"
+      aria-label="Top" (click)="sort()" title="Sort by Album & Track Number">
+      <span class="glyphicon glyphicon-sort-by-attributes" aria-hidden="true"></span>
+  </button>
+  </div>

dashboard/src/app/artist/artist.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { ArtistComponent } from './artist.component';
+
+describe('ArtistComponent', () => {
+  let component: ArtistComponent;
+  let fixture: ComponentFixture<ArtistComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ ArtistComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(ArtistComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should be created', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashboard/src/app/artist/artist.component.ts

@@ -0,0 +1,99 @@
+import { Component, OnInit } from '@angular/core';
+import { ActivatedRoute, Params } from '@angular/router';
+import { Location } from '@angular/common';
+
+import { ElsService } from './../els.service';
+import { Song } from './../object/song';
+import { Artist } from './../object/artist';
+
+import { SortByPipe } from './../sort-by.pipe';
+
+@Component({
+  selector: 'app-artist',
+  templateUrl: './artist.component.html',
+  styleUrls: [ './../album/album.component.css', './../dashboard.component.css' ]
+})
+
+export class ArtistComponent implements OnInit {
+  artistName = '';
+  songs: Array<Song> = [];
+  artist: Artist = new Artist();
+  // To activate button in interface var
+  moreDataAvailable = false;
+  atBottom = false;
+  sortable = false;
+
+  lockLoadData = false;
+
+  constructor(
+    private elsService: ElsService,
+    private route: ActivatedRoute,
+    private location: Location
+  ) { }
+
+  ngOnInit(): void {
+    this.route.params.subscribe((params: Params) => this.artistName = params['name']);
+
+    this.elsService.getArtist(this.artistName).subscribe(data => this.artist = data);
+    this.loadSongs();
+  }
+
+  // TODO Duplicate code!
+  loadSongs(): void {
+    if (this.lockLoadData) {
+      console.log('Loading data locked');
+      return;
+    }
+
+    this.lockLoadData = true;
+    this.elsService.getArtistSongs(this.artistName, this.songs.length).subscribe(
+      data => {
+        this.moreDataAvailable = data.length === ElsService.DEFAULT_SIZE;
+
+        // Erase song array with result for first load, then add elements one by one
+        // instead use concat => concat will sort table at each load, very consuming! and not user friendly
+        if (this.songs.length === 0) {
+          this.songs = data;
+        } else {
+          this.sortable = true;
+          data.forEach(song => {
+            this.songs.push(song);
+          });
+        }
+        console.log('Unlock load data');
+        this.lockLoadData = false;
+      }
+    );
+  }
+
+  scrollTop(): void {
+    window.scrollTo(0, 0);
+  }
+
+  /**
+   * Handle scroll:
+   * - load data if at bottom of screen (if needed)
+   * - hide/show "go to top" button
+   *
+   * @param event scroll event
+   */
+  onScroll(event: any) {
+    if (this.moreDataAvailable &&
+          (window.innerHeight + window.scrollY) >= document.body.offsetHeight) {
+        this.loadSongs();
+    }
+
+    if (window.scrollY > window.innerHeight) {
+      this.atBottom = true;
+    }
+
+    if (window.scrollY === 0) {
+      this.atBottom = false;
+    }
+  }
+
+  sort(): void {
+    this.songs = new SortByPipe().transform(this.songs, 'Year', 'Album', 'Track Number', 'Play Count');
+    this.sortable = false;
+  }
+}

dashboard/src/app/convertms.pipe.spec.ts

@@ -0,0 +1,8 @@
+import { ConvertmsPipe } from './convertms.pipe';
+
+describe('ConvertmsPipe', () => {
+  it('create an instance', () => {
+    const pipe = new ConvertmsPipe();
+    expect(pipe).toBeTruthy();
+  });
+});

dashboard/src/app/convertms.pipe.ts

@@ -0,0 +1,34 @@
+import { Pipe, PipeTransform } from '@angular/core';
+
+@Pipe({
+  name: 'convertMs'
+})
+export class ConvertMsPipe implements PipeTransform {
+
+  transform(timeMs: number): string {
+    let x = timeMs / 1000;
+
+    const seconds = Math.round(x % 60);
+    x /= 60;
+
+    let minutes = 0;
+    if (x > 1) { minutes = Math.round(x % 60); }
+    x /= 60;
+
+    let hours = 0;
+    if (x > 1) { hours = Math.round(x % 24); }
+    // TODO Enable/disable day
+    x /= 24;
+    const days = Math.round(x);
+
+    // Final string
+    let ret = '';
+    if (days > 0) { ret += ('0' + days).slice(-2) + ':'; }
+    if (hours > 0) { ret += ('0' + hours).slice(-2) + ':'; }
+    if (minutes > 0) { ret += ('0' + minutes).slice(-2) + ':'; }
+    if (seconds > 0) { ret += ('0' + seconds).slice(-2); }
+
+    return ret;
+    // return ('0' + days).slice(-2) + ':' + ('0' + hours).slice(-2) + ':' + ('0' + minutes).slice(-2) + ':' + ('0' + seconds).slice(-2);
+  }
+}

dashboard/src/app/dashboard.component.css

@@ -0,0 +1,38 @@
+.panel-stat {
+    min-height: 102px;
+}
+
+.panel-green {
+  background-color: #16a085;
+  color:white;
+}
+.panel-yellow {
+  background-color: #f1c40f;
+  color:white;
+}
+
+.panel-red {
+  background-color: #d9534f;
+  color:white;
+}
+
+.panel-purple {
+  background-color: #9b59b6;
+  color:white;
+}
+
+.panel-blue {
+  background-color: #3498db;
+  color:white;
+}
+
+.stats_icon {
+  font-size: 3em;
+}
+
+.circle {
+  border-radius: 50%;
+  background-color: #9b59b6;
+  margin: 0 auto;
+
+}

dashboard/src/app/dashboard.component.html

@@ -0,0 +1,171 @@
+<div class="container">
+    <h1>iTunes stats</h1>
+
+<br />
+<div class="row cardAdmin">
+    <div class="col-lg-3 col-md-3">
+        <div class="panel panel-blue">
+            <div class="panel-heading">
+                <div class="row">
+                    <div class="col-xs-3">
+                        <span class="glyphicon glyphicon-time stats_icon"></span>
+                    </div>
+                    <div class="col-xs-9 text-right">
+                        <div>
+                            <h3 *ngIf="!totalTime"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                            <h3 *ngIf="totalTime">{{totalTime | convertMs}}</h3>
+                        </div>
+                        <div><br>Total time</div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+    <div class="col-lg-3 col-md-3">
+        <div class="panel panel-green">
+            <div class="panel-heading">
+                <div class="row">
+                    <div class="col-xs-3">
+                        <span class="glyphicon glyphicon-hdd stats_icon"></span>
+                    </div>
+                    <div class="col-xs-9 text-right">
+                        <div>
+                            <h3 *ngIf="!totalSizeSt"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                            <h3 *ngIf="totalSizeSt">{{totalSizeSt}}</h3>
+                        </div>
+                        <div><br>Total size</div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+    <div class="col-lg-3 col-md-3">
+        <div class="panel panel-yellow">
+            <div class="panel-heading">
+                <div class="row">
+                    <div class="col-xs-3">
+                        <span class="glyphicon glyphicon-play stats_icon"></span>
+                    </div>
+                    <div class="col-xs-9 text-right">
+                        <div>
+                            <h3 *ngIf="!trackCountSong"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                            <h3 *ngIf="trackCountSong">{{trackCountSong}}</h3>
+                        </div>
+                        <div><br>Total Songs</div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+    <div class="col-lg-3 col-md-3">
+        <div class="panel panel-red">
+            <div class="panel-heading">
+                <div class="row">
+                    <div class="col-xs-3">
+                        <span class="glyphicon glyphicon-stop stats_icon"></span>
+                    </div>
+                    <div class="col-xs-9 text-right">
+                        <div>
+                            <h3 *ngIf="!neverListenSong"><span class="glyphicon glyphicon-refresh loading"></span></h3>
+                            <h3 *ngIf="neverListenSong">{{neverListenSong}}</h3>
+                        </div>
+                        <div><br>Never list. songs</div>
+                    </div>
+                </div>
+            </div>
+        </div>
+    </div>
+</div>
+
+<div class="col-md-12">
+    <h3>Last added albums</h3>
+
+    <table class="table table-striped">
+        <thead>
+            <tr>
+                <th>Album</th>
+            </tr>
+        </thead>
+        <tbody>
+            <tr *ngFor="let album of lastAddedAlbums">
+                <td><a [routerLink]="['/album', album.key]">{{album.key}}</a></td>
+                <td>{{album.doc_count}}</td>
+                <td><a [routerLink]="['/artist', albumArtists[album.key]]">{{albumArtists[album.key]}}</a></td>
+            </tr>
+        </tbody>
+    </table>
+</div>
+
+<h3>Top Played Songs</h3>
+<table class="table table-striped">
+<thead>
+    <tr>
+        <th>Track Name</th>
+        <th>Artist</th>
+        <th>Album</th>
+        <th>Play Count</th>
+    </tr>
+</thead>
+<tbody>
+    <tr *ngFor="let song of mostPlayedSongs">
+        <td><b>{{song.Name}}</b></td>
+        <td><a [routerLink]="['/artist', song.Artist]">{{song.Artist}}</a></td>
+        <td><a [routerLink]="['/album', song.Album]">{{song.Album}}</a></td>
+        <td>{{song['Play Count']}}</td>
+    </tr>
+</tbody>
+</table>
+
+<div class="col-md-6">
+    <h3>Top Genres</h3>
+    <table class="table table-striped">
+    <thead>
+        <tr>
+            <th>Genre</th>
+            <th>Track Count</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr *ngFor="let genre of topGenres">
+            <td><a [routerLink]="['/genre', genre.key]">{{genre.key}}</a></td>
+            <td>{{genre.doc_count}}</td>
+        </tr>
+    </tbody>
+    </table>
+</div>
+<div class="col-md-6">
+    <h3>Bottom Genres</h3>
+    <table class="table table-striped">
+    <thead>
+        <tr>
+            <th>Genre</th>
+            <th>Track Count</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr *ngFor="let genre of bottomGenres">
+            <td><a [routerLink]="['/genre', genre.key]">{{genre.key}}</a></td>
+            <td>{{genre.doc_count}}</td>
+        </tr>
+    </tbody>
+    </table>
+</div>
+
+<div>
+    <angular-tag-cloud
+      [data]="wordCloud"
+      [width]="options.width"
+      [height]="options.height"
+      [overflow]="options.overflow">
+    </angular-tag-cloud>
+  </div>
+
+
+<div AgWordCloud
+  #word_cloud_chart=ag-word-cloud
+  [wordData]="word_cloud">
+</div>
+
+<button (click)="word_cloud_chart.update()">Toggle tooltip</button>
+
+</div>

dashboard/src/app/dashboard.component.ts

@@ -0,0 +1,148 @@
+import { Observable } from 'rxjs/Rx';
+import { Component, OnInit, ViewChild, ViewChildren } from '@angular/core';
+
+import { CloudData, CloudOptions } from 'angular-tag-cloud-module';
+import { AgWordCloudData, AgWordCloudDirective } from 'angular4-word-cloud';
+
+import { ElsService } from './els.service';
+import { Song } from './object/song';
+import { Bucket } from './object/bucket';
+import { Album } from './object/album';
+import { Artist } from './object/artist';
+
+@Component({
+  selector: 'app-dashboard',
+  templateUrl: './dashboard.component.html',
+  styleUrls: [ './dashboard.component.css' ]
+})
+
+export class DashboardComponent implements OnInit {
+  totalTime = 0;
+  totalSize = 0;
+  totalSizeSt = '';
+  trackCountSong = 0;
+  trackCountArtist = 0;
+  trackCountAlbum = 0;
+  neverListenSong = 0;
+
+  albumArtistCount = 0;
+
+  topGenres: Bucket[] = [];
+  bottomGenres: Bucket[] = [];
+
+  mostPlayedSongs: Song[] = [];
+
+  lastAddedAlbums: Bucket[] = [];
+  albumArtists = [];
+
+  /**
+   * Test of angular-tag-cloud-module (https://www.npmjs.com/package/angular-tag-cloud-module)
+   */
+  options: CloudOptions = {
+    // if width is between 0 and 1 it will be set to the size of the upper element multiplied by the value
+    width : 1,
+    height : 400,
+    overflow: false,
+  };
+
+  wordCloud: Array<CloudData> = [];
+
+  /**
+   * Test of angular4-word-cloud (https://www.npmjs.com/package/angular4-word-cloud)
+   */
+  word_cloud: Array<AgWordCloudData> = [];
+
+  @ViewChild('word_cloud_chart') testTruc: AgWordCloudDirective;
+
+  constructor(private elsService: ElsService) { }
+
+  ngOnInit(): void {
+    this.elsService.getTime().then(result => {
+      this.totalTime = result;
+    });
+
+    this.elsService.getSize().then(result => {
+      this.totalSize = result;
+      this.totalSizeSt = this.convertSizeToString(result);
+    });
+
+    this.elsService.getCountSong('song')
+      .then(result => this.trackCountSong = result);
+    this.elsService.getCountSong('artist')
+      .then(result => this.trackCountArtist = result);
+    this.elsService.getCountSong('album')
+      .then(result => this.trackCountAlbum = result);
+
+    this.elsService.getCountNeverListenSong()
+      .then(result => this.neverListenSong = result);
+
+    this.elsService.getMostPlayedTrack().subscribe(
+      data => this.mostPlayedSongs = data
+    );
+
+    this.elsService.getGenres().subscribe(data => {
+      this.topGenres = data.slice(0, 10);
+
+      /** angular-tag-cloud-module **/
+      const changedData: Observable<Array<CloudData>> = Observable.of(
+        data.map(element => {
+          return {weight: element.doc_count, text: element.key, link: '/genre/' + element.key};
+        })
+      );
+      changedData.subscribe(res => this.wordCloud = res);
+
+      data.forEach((el) => {
+        this.word_cloud.push({size: el.doc_count, text: el.key});
+      });
+      this.testTruc.update();
+    });
+    this.elsService.getGenres('asc').subscribe(data => this.bottomGenres = data.slice(0, 10).reverse());
+    // this.elsService.getGenreCount().subscribe(data => console.log(data));
+
+    this.elsService.getLastAddedAlbums(6).subscribe(buckets => {
+      this.lastAddedAlbums = buckets;
+      buckets.forEach(bucket => this.getArtistName(bucket));
+    });
+  }
+
+  private getArtistName(albumBucket: Bucket) {
+    // For each bucket.key (album name), search artist.
+    // Use track count to compare
+    this.elsService.getArtistFromAlbumName(albumBucket.key).subscribe(albums => {
+      if (albums.length > 1) {
+        // More than one result for an album name
+        // Search good artist by track count
+        albums.forEach(album => {
+          if (album['Track Count'] === albumBucket.doc_count) {
+            this.albumArtists[album.Name] = album.Artist.toString();
+          }
+        });
+      } else {
+        // Just one artistresult for album name
+        this.albumArtists[albums[0].Name] = albums[0].Artist.toString();
+      }
+      if (this.albumArtists[albums[0].Name].length > 50) {
+        this.albumArtists[albums[0].Name] = this.albumArtists[albums[0].Name].substring(0, 50) + '...';
+      }
+    });
+  }
+
+
+  /**
+   * UTILS FUNCTION - TODO MOVE
+   */
+
+  convertSizeToString(size: number) {
+    const units = ['Bytes', 'KiB', 'MiB', 'GiB', 'TiB'];
+
+    if (size === 0) {
+      return '0 Byte';
+    }
+
+    const i = Math.floor(Math.log(size) / Math.log(1024));
+    let calcSize = size / Math.pow(1024, i);
+    calcSize = Math.round(calcSize * 100) / 100;
+
+    return calcSize + ' ' + units[i];
+  }
+}

dashboard/src/app/els.service.spec.ts

@@ -0,0 +1,15 @@
+import { TestBed, inject } from '@angular/core/testing';
+
+import { ElsService } from './els.service';
+
+describe('ElsService', () => {
+  beforeEach(() => {
+    TestBed.configureTestingModule({
+      providers: [ElsService]
+    });
+  });
+
+  it('should be created', inject([ElsService], (service: ElsService) => {
+    expect(service).toBeTruthy();
+  }));
+});

dashboard/src/app/els.service.ts

@@ -0,0 +1,390 @@
+import { Injectable } from '@angular/core';
+import { Headers, Http } from '@angular/http';
+
+import { Observable } from 'rxjs/Observable';
+import 'rxjs/add/operator/toPromise';
+import 'rxjs/add/operator/map';
+
+import { Song } from './object/song';
+import { Album } from './object/album';
+import { Artist } from './object/artist';
+import { Bucket } from './object/bucket';
+
+@Injectable()
+export class ElsService {
+  public static readonly DEFAULT_SIZE: number = 50;
+  private static readonly INDEX_NAME = 'itunessongs';
+
+  private static readonly ACTION_SEARCH = '/_search';
+  private static readonly ACTION_COUNT = '/_count';
+
+  private elsUrl = 'http://localhost:9200/' + ElsService.INDEX_NAME + '/';
+  private headers = new Headers({'Content-Type': 'application/json'});
+
+  constructor(private http: Http) { }
+
+  getTime(): Promise<number> {
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              aggs: {
+                sum_time: {
+                  sum: { field: 'Total Time'}
+                }
+              },
+              'size': 0
+            }), {headers: this.headers})
+      .toPromise()
+      .then(res => res.json().aggregations.sum_time.value as number)
+      .catch(this.handleError);
+  }
+
+  getTimeSlowly(): Promise<number> {
+    return new Promise(resolve => {
+      setTimeout(() => resolve(this.getTime()), 2000);
+    });
+  }
+
+  getSize(): Promise<number> {
+    return this.http
+      .post(this.elsUrl + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              aggs: {
+                sum_time: {
+                  sum: { field: 'Size' }
+                }
+              },
+              'size': 0
+            }), {headers: this.headers})
+      .toPromise()
+      .then(res => res.json().aggregations.sum_time.value as number)
+      .catch(this.handleError);
+  }
+
+  getSizeSlowly(): Promise<number> {
+    return new Promise(resolve => {
+      setTimeout(() => resolve(this.getSize()), 2000);
+    });
+  }
+
+  getCountSong(type: string): Promise<number> {
+    return this.http
+      .get(this.elsUrl + type + ElsService.ACTION_COUNT)
+      .toPromise()
+      .then(res => res.json().count as number)
+      .catch(this.handleError);
+  }
+
+  getCountNeverListenSong(): Promise<number> {
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_COUNT,
+            JSON.stringify({
+              'query': {
+                'bool': {
+                  'must_not': {
+                    'exists': { 'field': 'Play Count'}
+                  }
+                }
+              }
+            }), {headers: this.headers})
+      .toPromise()
+      .then(res => res.json().count as number)
+      .catch(this.handleError);
+  }
+
+  getTrackCountSlowly(type: string): Promise<number> {
+    return new Promise(resolve => {
+      setTimeout(() => resolve(this.getCountSong(type)), 2000);
+    });
+  }
+
+  getMostPlayedTrack(): Observable<Song[]> {
+    // Thank to http://chariotsolutions.com/blog/post/angular2-observables-http-separating-services-components/
+    // for the map part
+
+    // Could be shorter but I think it's more readable like this.
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'sort': [ {
+                'Play Count': {
+                  'order': 'desc'
+                }
+              } ],
+              'size': 5
+            }), {headers: this.headers})
+      .map(res => {
+        return res.json().hits.hits;
+      })
+      .map((hits: Array<any>) => {
+        const result: Array<Song> = [];
+        hits.forEach((hit) => {
+          result.push(hit._source);
+        });
+        return result;
+      });
+      // Shorter way:
+      // .map(res => {
+      //   let result: Array<Song> = [];
+      //   res.json().hits.hits.forEach(element => {
+      //     result.push(element._source);
+      //   });
+      //   return result;
+      // });
+  }
+
+  getAlbumSongs(albumName: string, from: number = 0): Observable<Song[]> {
+    console.info('getAlbumSongs- Album name: ' + albumName + ' - from: ' + from);
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'query': {
+                'match_phrase': { 'Album': albumName }
+              },
+              'size': ElsService.DEFAULT_SIZE,
+              'from': from
+            }), {headers: this.headers})
+      .map(res => {
+        return res.json().hits.hits;
+      })
+      .map((hits: Array<any>) => {
+        const result: Array<Song> = [];
+        hits.forEach((hit) => {
+          result.push(hit._source);
+        });
+        return result;
+      });
+  }
+
+  getGenreSongs(genreName: string, from: number = 0): Observable<Song[]> {
+    console.info('getGenreSongs- Genre name: ' + genreName + ' - from: ' + from);
+    // TODO Code repetition => to refactor
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'query': {
+                'match_phrase': { 'Genre': genreName }
+              },
+              'size': ElsService.DEFAULT_SIZE,
+              'from': from
+            }), {headers: this.headers})
+      .map(res => {
+        return res.json().hits.hits;
+      })
+      .map((hits: Array<any>) => {
+        const result: Array<Song> = [];
+        hits.forEach((hit) => {
+          result.push(hit._source);
+        });
+        return result;
+      });
+  }
+
+  getArtistSongs(artistName: string, from: number = 0): Observable<Song[]> {
+    console.info('getArtistSongs- Artist name: ' + artistName + ' - from: ' + from);
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'query': {
+                  'bool': {
+                      'should': [
+                          {'match_phrase' : { 'Album Artist' : artistName }},
+                          {'match_phrase' : { 'Artist' : artistName }}
+                      ]
+                  }
+              },
+              'size': ElsService.DEFAULT_SIZE,
+              'from': from
+            }), {headers: this.headers})
+      .map(res => {
+        return res.json().hits.hits;
+      })
+      .map((hits: Array<any>) => {
+        const result: Array<Song> = [];
+        hits.forEach((hit) => {
+          result.push(hit._source);
+        });
+        return result;
+      });
+  }
+
+  getAlbum(albumName: string): Observable<Album> {
+    return this.http
+      .post(this.elsUrl + 'album' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'query': {
+                'match_phrase': { 'Album': albumName }
+              },
+              'size': ElsService.DEFAULT_SIZE
+            }), {headers: this.headers})
+      .map(res => {
+        return res.json().hits.hits;
+      })
+      .map((hits: Array<any>) => {
+        if (hits.length < 1) {
+          console.info('No album "' + albumName + '" found.');
+          return undefined;
+        }
+        if (hits.length > 1) {
+          console.error('More than one album "' + albumName + '" found (' + hits.length + '), return the first.');
+        }
+        return hits[0]._source;
+      });
+  }
+
+  getArtist(artistName: string): Observable<Artist> {
+    return this.http
+      .post(this.elsUrl + 'artist' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'query': {
+                'match_phrase': { 'Artist': artistName }
+              },
+              'size': ElsService.DEFAULT_SIZE
+            }), {headers: this.headers})
+      .map(res => res.json().hits.hits)
+      .map((hits: Array<any>) => {
+        // Theorically, my script prevent to found two documents with this query.
+        // But Prevention is better than cure as Shakespeare said
+        if (hits.length < 1) {
+          console.info('No artist "' + artistName + '" found.');
+          return undefined;
+        }
+        if (hits.length > 1) {
+          console.error('More than one artist "' + artistName + '" found (' + hits.length + '), return the first.');
+          console.error('This is not normal!');
+        }
+        return hits[0]._source;
+      });
+  }
+
+  getGenres(ordering: string = 'desc'): Observable<Bucket[]> {
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'aggs' : {
+                'genres' : {
+                  'terms' : {
+                    'field' : 'Genre.original',
+                    'size' : 100,
+                    'missing': 'N/A',
+                    'order': { '_count' : ordering }
+                  }
+                }
+              },
+              'size': 0
+            }), {headers: this.headers})
+      .map(res => res.json().aggregations.genres.buckets)
+      .map((hits: Array<any>) => this.hitsToBuckets(hits));
+  }
+
+  getArtists(): Observable<Bucket[]> {
+    return this.http
+      .post(this.elsUrl + 'artist' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'size': 100,
+              '_source': [
+                'Artist',
+                'Track Count'
+              ],
+              'sort': [
+                {
+                  'Track Count': {
+                    'order': 'desc'
+                  }
+                }
+              ]
+          }), {headers: this.headers})
+      .map(res => {
+        return res.json().hits.hits;
+      })
+      .map((hits: Array<any>) => {
+        const result: Array<Bucket> = [];
+        hits.forEach((hit) => {
+          const bucket = new Bucket;
+          bucket.doc_count = hit._source['Track Count'];
+          bucket.key = hit._source.Artist;
+          result.push(bucket);
+        });
+        console.log(result);
+        return result;
+      });
+  }
+
+  getGenreCount(): Observable<number> {
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'aggs' : {
+                'genres' : {
+                  'cardinality' : {
+                    'field' : 'Genre.original',
+                    'missing': 'N/A',
+                  }
+                }
+              },
+              'size': 0
+            }), {headers: this.headers})
+      .map(res => res.json().aggregations.genres.value);
+  }
+
+  getLastAddedAlbums(month: number): Observable<Bucket[]> {
+    return this.http
+      .post(this.elsUrl + 'song' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'query': {
+                  'range' : {
+                      'Date Added' : {
+                          'gte' : 'now-' + month + 'M/d',
+                          'lte' : 'now/d'
+                      }
+                  }
+              },
+              'aggs' : {
+                  'album' : {
+                      'terms' : {
+                          'field' : 'Album.original',
+                          'size': 10
+                      }
+                  }
+              },
+              'size': 0
+          }), {headers: this.headers})
+      .map(res => res.json().aggregations.album.buckets)
+      // TODO Take in consideration "sum_other_doc_count"
+      .map((hits: Array<any>) => this.hitsToBuckets(hits));
+  }
+
+  getArtistFromAlbumName(albumname: string): Observable<Album[]> {
+    return this.http
+      .post(this.elsUrl + 'album' + ElsService.ACTION_SEARCH,
+            JSON.stringify({
+              'query': {
+                  'match_phrase' : {
+                      'Album' : albumname
+                  }
+              }
+          }), {headers: this.headers})
+      .map(res => res.json().hits.hits)
+      .map((hits: Array<any>) => {
+        // TODO Use a method (duplicated code ?)
+        const result: Array<Album> = [];
+        hits.forEach((hit) => {
+          result.push(hit._source);
+        });
+        return result;
+      });
+  }
+
+  private hitsToBuckets(hits: Array<any>): Bucket[] {
+      const result: Array<Bucket> = [];
+      hits.forEach((bucket) => {
+        result.push(bucket);
+      });
+      return result;
+  }
+
+  private handleError(error: any): Promise<any> {
+    console.error('An error occurred', error); // for demo purposes only
+    return Promise.reject(error.message || error);
+  }
+}

dashboard/src/app/genre/genre.component.html

@@ -0,0 +1,28 @@
+<div class="container">
+  <h1>{{genreName}}</h1>
+
+  <table class="table table-striped">
+    <thead>
+      <tr>
+        <th></th>
+        <th>Name</th>
+        <th>Artist</th>
+        <th>Album</th>
+        <th>Album Artist</th>
+        <th>Play Count</th>
+        <th>Genre</th>
+      </tr>
+    </thead>
+    <tbody>
+      <tr *ngFor="let song of songs | sortBy : 'Track Number'">
+        <td>{{song['Track Number'] ? (("0" + song['Track Number']).slice(-2)) : "--"}}</td>
+        <td>{{song.Name}}</td>
+        <td><a [routerLink]="['/artist', song.Artist]">{{song.Artist}}</a></td>
+        <td><a [routerLink]="['/album', song.Album]">{{song.Album}}</a></td>
+        <td>{{song['Album Artist']}}</td>
+        <td>{{song['Play Count']}}</td>
+        <td>{{song.Genre}}</td>
+      </tr>
+    </tbody>
+  </table>
+</div>

dashboard/src/app/genre/genre.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { GenreComponent } from './genre.component';
+
+describe('GenreComponent', () => {
+  let component: GenreComponent;
+  let fixture: ComponentFixture<GenreComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ GenreComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(GenreComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should be created', () => {
+    expect(component).toBeTruthy();
+  });
+});

dashboard/src/app/genre/genre.component.ts

@@ -0,0 +1,47 @@
+import { Component, OnInit } from '@angular/core';
+import { ActivatedRoute, Params } from '@angular/router';
+
+import { ElsService } from '../els.service';
+
+import { Song } from '../object/song';
+
+@Component({
+  selector: 'app-genre',
+  templateUrl: './genre.component.html',
+  styleUrls: ['./genre.component.css']
+})
+export class GenreComponent implements OnInit {
+  genreName = '';
+  songs: Array<Song> = [];
+
+  constructor(
+    private elsService: ElsService,
+    private route: ActivatedRoute
+  ) { }
+
+  ngOnInit() {
+    this.route.params
+      .subscribe((params: Params) => this.genreName = params['name']);
+
+    this.loadSongs();
+  }
+
+  loadSongs(): any {
+    this.elsService.getGenreSongs(this.genreName, this.songs.length).subscribe(
+      data => {
+        // this.moreDataAvailable = data.length === ElsService.DEFAULT_SIZE;
+
+        // Erase song array with result for first load, then add elements one by one
+        // instead use concat => concat will sort table at each load, very consuming! and not user friendly
+        if (this.songs.length === 0) {
+          this.songs = data;
+        } else {
+          data.forEach(song => {
+            this.songs.push(song);
+          });
+        }
+      }
+    );
+  }
+
+}

dashboard/src/app/object/album.ts

@@ -0,0 +1,13 @@
+export class Album {
+    Name: string;
+    Album: string;
+    Artist: Array<string>;
+    Rating: number;
+    Genre: Array<string>;
+    'Track Count': number;
+    'Album Rating': number;
+    'Persistent ID': string;
+    'Album Rating Computed':  boolean;
+    'Play Count': number;
+    'Total Time': number;
+}

dashboard/src/app/object/artist.ts

@@ -0,0 +1,10 @@
+export class Artist {
+    Name: string;
+    Album: string[];
+    Artist: string;
+    Rating: number;
+    Genre: Array<string>;
+    'Track Count': number;
+    'Persistent ID': string;
+    'Play Count': number;
+}

dashboard/src/app/object/bucket.ts

@@ -0,0 +1,4 @@
+export class Bucket {
+    key: string;
+    doc_count: number;
+}

dashboard/src/app/object/song.ts

@@ -0,0 +1,7 @@
+export class Song {
+    Name: string;
+    Artist: string;
+    'Play Count': number;
+    Album: string;
+    'Track Number': number; // TODO Default property
+}

dashboard/src/app/sort-by.pipe.spec.ts

@@ -0,0 +1,8 @@
+import { SortByPipe } from './sort-by.pipe';
+
+describe('SortByPipe', () => {
+  it('create an instance', () => {
+    const pipe = new SortByPipe();
+    expect(pipe).toBeTruthy();
+  });
+});

dashboard/src/app/sort-by.pipe.ts

@@ -0,0 +1,24 @@
+import { Pipe, PipeTransform } from '@angular/core';
+
+@Pipe({
+  name: 'sortBy'
+})
+export class SortByPipe implements PipeTransform {
+
+  transform(array: Array<any>, ...args: any[]): Array<any> {
+    array.sort((a: any, b: any) => {
+      for (let i = 0; i < array.length; i++) {
+        const arg = args[i];
+
+        if (a[arg] === undefined && b[arg] !== undefined) { return -1; }
+        if (a[arg] !== undefined && b[arg] === undefined) { return 1; }
+
+        if (a[arg] < b[arg]) { return -1; }
+        if (a[arg] > b[arg]) { return 1; }
+      }
+      return 0;
+    });
+    return array;
+  }
+
+}

dashboard/src/environments/environment.prod.ts

@@ -0,0 +1,3 @@
+export const environment = {
+  production: true
+};

dashboard/src/environments/environment.ts

@@ -0,0 +1,8 @@
+// The file contents for the current environment will overwrite these during build.
+// The build system defaults to the dev environment which uses `environment.ts`, but if you do
+// `ng build --env=prod` then `environment.prod.ts` will be used instead.
+// The list of which env maps to which file can be found in `.angular-cli.json`.
+
+export const environment = {
+  production: false
+};

dashboard/src/index.html

@@ -0,0 +1,14 @@
+<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <title>Dashboard</title>
+  <base href="/">
+
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
+</head>
+<body>
+  <app-root></app-root>
+</body>
+</html>

dashboard/src/main.ts

@@ -0,0 +1,11 @@
+import { enableProdMode } from '@angular/core';
+import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
+
+import { AppModule } from './app/app.module';
+import { environment } from './environments/environment';
+
+if (environment.production) {
+  enableProdMode();
+}
+
+platformBrowserDynamic().bootstrapModule(AppModule);

dashboard/src/polyfills.ts

@@ -0,0 +1,72 @@
+/**
+ * This file includes polyfills needed by Angular and is loaded before the app.
+ * You can add your own extra polyfills to this file.
+ *
+ * This file is divided into 2 sections:
+ *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
+ *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
+ *      file.
+ *
+ * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
+ * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
+ * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
+ *
+ * Learn more in https://angular.io/docs/ts/latest/guide/browser-support.html
+ */
+
+/***************************************************************************************************
+ * BROWSER POLYFILLS
+ */
+
+/** IE9, IE10 and IE11 requires all of the following polyfills. **/
+// import 'core-js/es6/symbol';
+// import 'core-js/es6/object';
+// import 'core-js/es6/function';
+// import 'core-js/es6/parse-int';
+// import 'core-js/es6/parse-float';
+// import 'core-js/es6/number';
+// import 'core-js/es6/math';
+// import 'core-js/es6/string';
+// import 'core-js/es6/date';
+// import 'core-js/es6/array';
+// import 'core-js/es6/regexp';
+// import 'core-js/es6/map';
+// import 'core-js/es6/weak-map';
+// import 'core-js/es6/set';
+
+/** IE10 and IE11 requires the following for NgClass support on SVG elements */
+// import 'classlist.js';  // Run `npm install --save classlist.js`.
+
+/** Evergreen browsers require these. **/
+import 'core-js/es6/reflect';
+import 'core-js/es7/reflect';
+
+
+/**
+ * Required to support Web Animations `@angular/animation`.
+ * Needed for: All but Chrome, Firefox and Opera. http://caniuse.com/#feat=web-animation
+ **/
+// import 'web-animations-js';  // Run `npm install --save web-animations-js`.
+
+
+
+/***************************************************************************************************
+ * Zone JS is required by Angular itself.
+ */
+import 'zone.js/dist/zone';  // Included with Angular CLI.
+
+
+
+/***************************************************************************************************
+ * APPLICATION IMPORTS
+ */
+
+/**
+ * Date, currency, decimal and percent pipes.
+ * Needed for: All but Chrome, Firefox, Edge, IE11 and Safari 10
+ */
+// import 'intl';  // Run `npm install --save intl`.
+/**
+ * Need to import at least one locale-data with intl.
+ */
+// import 'intl/locale-data/jsonp/en';

dashboard/src/styles.css

@@ -0,0 +1,38 @@
+/* Master Styles */
+h1 {
+  color: #369;
+  font-family: Arial, Helvetica, sans-serif;
+  font-size: 250%;
+}
+
+h2, h3 {
+  color: #444;
+  font-family: Arial, Helvetica, sans-serif;
+  font-weight: lighter;
+}
+
+body {
+  margin: 2em;
+}
+
+body, input[text], button {
+  color: #888;
+  font-family: Cambria, Georgia;
+}
+
+.loading {
+  -animation: spin 1.5s infinite linear;
+  -webkit-animation: spin2 1.5s infinite linear;
+}
+
+@-webkit-keyframes spin2 {
+  from { -webkit-transform: rotate(0deg);}
+  to { -webkit-transform: rotate(360deg);}
+}
+
+
+/* . . . */
+/* everywhere else */
+* {
+  font-family: Arial, Helvetica, sans-serif;
+}

dashboard/src/test.ts

@@ -0,0 +1,32 @@
+// This file is required by karma.conf.js and loads recursively all the .spec and framework files
+
+import 'zone.js/dist/long-stack-trace-zone';
+import 'zone.js/dist/proxy.js';
+import 'zone.js/dist/sync-test';
+import 'zone.js/dist/jasmine-patch';
+import 'zone.js/dist/async-test';
+import 'zone.js/dist/fake-async-test';
+import { getTestBed } from '@angular/core/testing';
+import {
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting
+} from '@angular/platform-browser-dynamic/testing';
+
+// Unfortunately there's no typing for the `__karma__` variable. Just declare it as any.
+declare const __karma__: any;
+declare const require: any;
+
+// Prevent Karma from running prematurely.
+__karma__.loaded = function () {};
+
+// First, initialize the Angular testing environment.
+getTestBed().initTestEnvironment(
+  BrowserDynamicTestingModule,
+  platformBrowserDynamicTesting()
+);
+// Then we find all the tests.
+const context = require.context('./', true, /\.spec\.ts$/);
+// And load the modules.
+context.keys().map(context);
+// Finally, start Karma to run the tests.
+__karma__.start();

dashboard/src/tsconfig.app.json

@@ -0,0 +1,13 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../out-tsc/app",
+    "baseUrl": "./",
+    "module": "es2015",
+    "types": []
+  },
+  "exclude": [
+    "test.ts",
+    "**/*.spec.ts"
+  ]
+}

dashboard/src/tsconfig.spec.json

@@ -0,0 +1,20 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../out-tsc/spec",
+    "baseUrl": "./",
+    "module": "commonjs",
+    "target": "es5",
+    "types": [
+      "jasmine",
+      "node"
+    ]
+  },
+  "files": [
+    "test.ts"
+  ],
+  "include": [
+    "**/*.spec.ts",
+    "**/*.d.ts"
+  ]
+}

dashboard/src/typings.d.ts

@@ -0,0 +1,5 @@
+/* SystemJS module definition */
+declare var module: NodeModule;
+interface NodeModule {
+  id: string;
+}

dashboard/tsconfig.json

@@ -0,0 +1,19 @@
+{
+  "compileOnSave": false,
+  "compilerOptions": {
+    "outDir": "./dist/out-tsc",
+    "sourceMap": true,
+    "declaration": false,
+    "moduleResolution": "node",
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "target": "es5",
+    "typeRoots": [
+      "node_modules/@types"
+    ],
+    "lib": [
+      "es2017",
+      "dom"
+    ]
+  }
+}

dashboard/tslint.json

@@ -0,0 +1,141 @@
+{
+  "rulesDirectory": [
+    "node_modules/codelyzer"
+  ],
+  "rules": {
+    "arrow-return-shorthand": true,
+    "callable-types": true,
+    "class-name": true,
+    "comment-format": [
+      true,
+      "check-space"
+    ],
+    "curly": true,
+    "eofline": true,
+    "forin": true,
+    "import-blacklist": [
+      true,
+      "rxjs"
+    ],
+    "import-spacing": true,
+    "indent": [
+      true,
+      "spaces"
+    ],
+    "interface-over-type-literal": true,
+    "label-position": true,
+    "max-line-length": [
+      true,
+      140
+    ],
+    "member-access": false,
+    "member-ordering": [
+      true,
+      {
+        "order": [
+          "static-field",
+          "instance-field",
+          "static-method",
+          "instance-method"
+        ]
+      }
+    ],
+    "no-arg": true,
+    "no-bitwise": true,
+    "no-console": [
+      true,
+      "debug",
+      "time",
+      "timeEnd",
+      "trace"
+    ],
+    "no-construct": true,
+    "no-debugger": true,
+    "no-duplicate-super": true,
+    "no-empty": false,
+    "no-empty-interface": true,
+    "no-eval": true,
+    "no-inferrable-types": [
+      true,
+      "ignore-params"
+    ],
+    "no-misused-new": true,
+    "no-non-null-assertion": true,
+    "no-shadowed-variable": true,
+    "no-string-literal": false,
+    "no-string-throw": true,
+    "no-switch-case-fall-through": true,
+    "no-trailing-whitespace": true,
+    "no-unnecessary-initializer": true,
+    "no-unused-expression": true,
+    "no-use-before-declare": true,
+    "no-var-keyword": true,
+    "object-literal-sort-keys": false,
+    "one-line": [
+      true,
+      "check-open-brace",
+      "check-catch",
+      "check-else",
+      "check-whitespace"
+    ],
+    "prefer-const": true,
+    "quotemark": [
+      true,
+      "single"
+    ],
+    "radix": true,
+    "semicolon": [
+      true,
+      "always"
+    ],
+    "triple-equals": [
+      true,
+      "allow-null-check"
+    ],
+    "typedef-whitespace": [
+      true,
+      {
+        "call-signature": "nospace",
+        "index-signature": "nospace",
+        "parameter": "nospace",
+        "property-declaration": "nospace",
+        "variable-declaration": "nospace"
+      }
+    ],
+    "typeof-compare": true,
+    "unified-signatures": true,
+    "variable-name": false,
+    "whitespace": [
+      true,
+      "check-branch",
+      "check-decl",
+      "check-operator",
+      "check-separator",
+      "check-type"
+    ],
+    "directive-selector": [
+      true,
+      "attribute",
+      "app",
+      "camelCase"
+    ],
+    "component-selector": [
+      true,
+      "element",
+      "app",
+      "kebab-case"
+    ],
+    "use-input-property-decorator": true,
+    "use-output-property-decorator": true,
+    "use-host-property-decorator": true,
+    "no-input-rename": true,
+    "no-output-rename": true,
+    "use-life-cycle-interface": true,
+    "use-pipe-transform-interface": true,
+    "component-class-suffix": true,
+    "directive-class-suffix": true,
+    "no-access-missing-member": true,
+    "templates-use-public": true,
+    "invoke-injectable": true
+  }
+}

iTunesParser.py

@@ -66,6 +66,8 @@ class ITunesParser:
     """
         Parse an iTunes Library and produce JSON - for ELS
     """
+    ELS_INDEX_NAME = "itunessongs"
+
     def __init__(self):
         self._tracks = {}
         self._albums = {}
@@ -184,7 +186,8 @@ class ITunesParser:
                 'Play Count': 0,
                 'Rating': 0,
                 'Genre': set(),
-                'Artist': set()
+                'Artist': set(),
+                'Total Time': 0
             }
 
         # Compute information
@@ -193,9 +196,12 @@ class ITunesParser:
         rating = track['Rating'] if 'Rating' in track else 0
         rating = self.calc_rating(rating, self._albums[akey]['Rating'], self._albums[akey]['Track Count'])
 
+        total_time = track['Total Time'] if 'Total Time' in track else 0
+
         self._albums[akey]['Track Count'] += 1
         self._albums[akey]['Rating'] = rating
         self._albums[akey]['Play Count'] += play_count
+        self._albums[akey]['Total Time'] += total_time
 
         if 'Genre' in track:
             # Split up the Genres
@@ -227,21 +233,6 @@ class ITunesParser:
 
 
 class WriteElsJson:
-    def to_json(self):
-        """
-            Just do processSong()
-            or do process_songs, then _write_artists and _write_albums.
-            Note: process_songs do a process_artists and process_albums...
-            This method suck.
-        """
-        ret = self._process_songs()
-
-        self._write_artists()
-        self._write_albums()
-
-        # return json.dumps(jsonObj, indent=indent, cls=SetEncoder)
-        return ret
-
     @staticmethod
     def write_artists(artists, output_file):
         """
@@ -254,7 +245,7 @@ class WriteElsJson:
             artist['Rating'] = round(artist['Rating'])
 
             json_track_index = {
-                "index": {"_index": "itunessongs", "_type": "artist", "_id": persistent_id}
+                "index": {"_index": ITunesParser.ELS_INDEX_NAME, "_type": "artist", "_id": persistent_id}
             }
 
             file_artist.write(bytes(json.dumps(json_track_index, indent=None, cls=SetEncoder), 'UTF-8'))
@@ -275,7 +266,7 @@ class WriteElsJson:
             album['Rating'] = round(album['Rating'])
 
             json_track_index = {
-                "index": {"_index": "itunessongs", "_type": "album", "_id": persistent_id}
+                "index": {"_index": ITunesParser.ELS_INDEX_NAME, "_type": "album", "_id": persistent_id}
             }
 
             file_albums.write(bytes(json.dumps(json_track_index, indent=None, cls=SetEncoder), 'UTF-8'))
@@ -292,7 +283,7 @@ class WriteElsJson:
         file = io.open(output_file, 'wb')
         for persistent_id, song in songs.items():
             json_track_index = {
-                "index": {"_index": "itunessongs", "_type": "song", "_id": persistent_id}
+                "index": {"_index": ITunesParser.ELS_INDEX_NAME, "_type": "song", "_id": persistent_id}
             }
 
             file.write(bytes(json.dumps(json_track_index, indent=None, cls=SetEncoder), 'UTF-8'))
@@ -310,7 +301,9 @@ DEFAULT_LIBRARY_FILE = os.path.expanduser(DEFAULT_LIBRARY_FILE_NAME)
 DEFAULT_OUTPUT_FILE = os.path.dirname(os.path.realpath(__file__)) + DEFAULT_OUTPUT_FILE_NAME
 
 # Get options
-parser = argparse.ArgumentParser()
+parser = argparse.ArgumentParser(description="""
+    Parse an iTunes XML library file to produce JSON file for ELS bulk operation.
+    """)
 parser.add_argument('-f', '--file', default=DEFAULT_LIBRARY_FILE,
                     help='iTunes Library XML file path (default: ./' + DEFAULT_LIBRARY_FILE_NAME + ')')
 parser.add_argument('-o', '--output', default=DEFAULT_OUTPUT_FILE,

send_data.py

@@ -33,15 +33,34 @@ def delete_index(index_name, quiet=False):
         Delete an index in ELS
     """
     if not quiet:
-        print('Deleting index {}...'.format(index_name))
+        print('Deleting index \'{}\'...'.format(index_name))
     res = requests.delete(url=ELASTICSEARCH_URL + INDEX_NAME)
     if res.status_code == 200:
         if not quiet:
             print("Deleted!")
     else:
         print("An error occured")
-        # TODO Catch "index_not_found_exception"
+        if res.json()['error']['type'] == 'index_not_found_exception':
+            print("Index '{}' doesn't exist and can't be deleted".format(index_name))
+        else:
+            print(res.text)
+
+def put_mapping(index_name, mapping_file, quiet=False):
+    """
+        Send a mapping file for an index to ELS.
+    """
+    if not quiet:
+        print("Put '{}' mapping file...".format(mapping_file.name))
+    res = requests.put(url=ELASTICSEARCH_URL + index_name,
+                       data=mapping_file,
+                       headers={'Content-Type': 'application/x-ndjson'})
+    if res.status_code != 200:
+        print("An error occured")
         print(res.text)
+    else:
+        if not quiet:
+            print("File '{} sended to Elasticsearch!".format(mapping_file.name))
+
 
 #### main block ####
 
@@ -53,6 +72,7 @@ INDEX_NAME = "itunessongs"
 DEFAULT_SONG_FILE = 'es-music-data.json'
 DEFAULT_ALBUM_FILE = 'es-albums-data.json'
 DEFAULT_ARTIST_FILE = 'es-artist-data.json'
+DEFAULT_MAPPING_FILE = 'mapping.json'
 
 # Get options
 parser = argparse.ArgumentParser(
@@ -75,13 +95,15 @@ song_group.add_argument('-sf', '--song-file', type=argparse.FileType('r'),
 sending_group.add_argument('-al', '--album-file', nargs='?', type=argparse.FileType('r'), const=DEFAULT_ALBUM_FILE,
                            help='Enable send album data. Optionally, precise the album file (default: \'{}\')'.format(DEFAULT_ALBUM_FILE))
 sending_group.add_argument('-ar', '--artist-file', nargs='?', type=argparse.FileType('r'), const=DEFAULT_ARTIST_FILE,
-                           help='Enable send artist data. Optionally, precise the artist file (default: \'{}\''.format(DEFAULT_ARTIST_FILE))
+                           help='Enable send artist data. Optionally, precise the artist file (default: \'{}\')'.format(DEFAULT_ARTIST_FILE))
+sending_group.add_argument('-m', '--mapping-file', type=argparse.FileType('r'), default=DEFAULT_MAPPING_FILE,
+                           help='If deleting index, mapping file to send (default: \'{}\')'.format(DEFAULT_MAPPING_FILE))
 # Mode
 mode_group = parser.add_argument_group('Mode')
 mode_group.add_argument('-A', '--ALL', action='store_true',
                         help='Send all possible data: song, artist and album')
 mode_group.add_argument('-D', '--DELETE', action='store_true',
-                        help='Delete old index (precise name with -idx argument)')
+                        help='Delete old index (precise name with -idx argument). This will send a mapping to ELS.')
 # Settings
 g_settings_group = parser.add_argument_group('Global Settings')
 g_settings_group.add_argument('-els', '--elasticsearch-url', default=ELASTICSEARCH_URL, nargs='?',
@@ -107,13 +129,14 @@ if __name__ == '__main__':
 
     if args.DELETE:
         delete_index(INDEX_NAME, args.quiet)
+        put_mapping(INDEX_NAME, args.mapping_file, args.quiet)
 
     if args.song or args.ALL:
         # Retrieve default song file if not precised
         if not args.song_file:
             try:
                 song_file = open(DEFAULT_SONG_FILE, 'r')
-            except FileNotFoundError:
+            except FileNotFoundError: # Theoretically, can occur only when default file not found
                 print("Error: can't open default music file: [Errno 2] No such file or directory: '{}'.".format(DEFAULT_SONG_FILE))
                 print("Use -sf argument, or -h for more help")
                 sys.exit(2)