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1451
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1 import { LitElement, TemplateResult, html, css } from '/lib/lit-element/2.2.0/lit-element-custom.js';
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2
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3 class CollectorState extends LitElement {
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4 static get properties() {
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5 return {
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6 latestState: { type: Object }
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7 };
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8 }
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9 firstUpdated() {
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10 this.latestState = {graphClients: {}};
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11 this.refreshLoop();
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12 }
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13
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14 refreshLoop() {
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15 setTimeout(() => {
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16 requestAnimationFrame(() => {
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17 this.refresh();
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18 });
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19 }, 5000);
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20 }
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21
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22 refresh() {
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23 fetch('state')
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24 .then((response) => {
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25 return response.json();
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26 })
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27 .then((newState) => {
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28 this.latestState = newState;
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29 this.refreshLoop();
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30 });
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31 }
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32
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33 static get styles() {
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34 return css`
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35 :host {
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36 display: inline-block;
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37 border: 2px solid gray;
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38 padding: 5px;
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39 }`;
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40 }
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41
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42 render() {
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43 const sourcesTable = (clients) => {
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44 const clientRow = (client) => {
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45 const d = client.reconnectedPatchSource;
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46 return html`
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47 <tr>
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48 <td><a href="/rdf/browse/?graph=${d.url}">[browse]</a> <a href="${d.url}">${d.url}</a></td>
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49 <td>${d.fullGraphReceived}</td>
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50 <td>${d.patchesReceived}</td>
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51 <td>${d.time.open}</td>
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52 <td>${d.time.fullGraph}</td>
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53 <td>${d.time.latestPatch}</td>
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54 </tr>
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55 `;
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56 };
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57
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58 return html`
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59 <table>
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60 <thead>
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61 <tr>
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62 <th>patch source</th>
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63 <th>full graph recv</th>
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64 <th>patches recv</th>
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65 <th>time open</th>
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66 <th>time fullGraph</th>
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67 <th>time latest patch</th>
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68 </tr>
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69 </thead>
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70 <tbody>
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71 ${clients.map(clientRow)}
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72 </tbody>
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73 </table>
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74 `;
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75 };
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76
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77 const handlersTable = (handlers) => {
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78 const handlerRow = (d) => {
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79 return html`
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80 <tr>
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81 <td>${d.created}</td>
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82 <td>${d.ageHours}</td>
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83 <td><a href="/rdf/browse/?graph=/sse_collector/graph/${d.streamId}">${d.streamId}</a></td>
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84 <td>${d.foafAgent}</td>
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85 <td>${d.userAgent}</td>
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86 </tr>
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87 `;
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88 };
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89
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90 return html`
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91 <table>
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92 <thead>
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93 <tr>
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94 <th>created</th>
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95 <th>age hours</th>
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96 <th>stream</th>
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97 <th>foaf agent</th>
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98 <th>user agent</th>
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99 </tr>
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100 </thead>
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101 <tbody>
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102 ${handlers.map(handlerRow)}
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103 </tbody>
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104 </table>
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105 `;
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106 };
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107
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108 if (!this.latestState) {
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109 return 'loading...';
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110 }
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111 const d = this.latestState.graphClients;
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112 return html`
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113 <div>
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114 <p>
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115 Graph: ${d.statements.len} statements
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116 </p>
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117
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118 <p>
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119 Sources:
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120 ${sourcesTable(d.clients)}
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121 </p>
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122
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123 <p>
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124 Listening clients:
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125 ${handlersTable(d.sseHandlers)}
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126 </p>
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127 </div>`;
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128 }
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129 }
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130 customElements.define('collector-state', CollectorState);
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