Walter Rafelsberger walterra

How to install Elasticsearch & Kibana on Windows

Elasticsearch

Download & Install Java from https://www.oracle.com/technetwork/pt/java/javase/downloads/jdk8-downloads-2133151.html, e.g. https://download.oracle.com/otn/java/jdk/8u241-b07/1f5b5a70bf22433b84d0e960903adac8/jdk-8u241-windows-x64.exe
Download Windows version from https://www.elastic.co/downloads/elasticsearch, e.g. https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.5.2-windows-x86_64.zip
Extract the ZIP file and copy the elasticsearch-7.5.2 directory to C:\visual-analytics\elasticsearch-7.5.2.
Edit the file C:\visual-analytics\elasticsearch-7.5.2\config\elasticsearch.yml and add the line network.host: localhost.
Open a command line (cmd.exe), in the command line do:
cd c:\visual-analytics\elasticsearch-7.5.2 (move to elasticsearch directory)

TypeScript Interface

While working on annnotations, I thought about how TypeScript Interfaces could be valuable for validating js objects like an annotation itself.

TS's Interface can be thought of in analogy to PropTypes, but Interfaces can be applied everywhere, they don't work during run- but compile-time and are tightly integrated with VSCode's TS features.

So looking at the spec of the annotation format here, an Interface for an annotation can look like this:

export interface Annotation {

	<!DOCTYPE html>
	<html>
	<head><meta charset="utf-8" />

	<title>vega-brush-info</title>

	<script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.1.10/require.min.js"></script>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>

	{
	"$schema": "https://vega.github.io/schema/vega/v5.json",
	"background": "white",
	"padding": 5,
	"data": [
	{
	"name": "data-b7a0909663af312f9c279ddca350c314",
	"values": [
	{"date": "2018-11-21T00:00:00", "location": "Strengen", "count": 1},
	{"date": "2018-11-27T00:00:00", "location": "Ischgl", "count": 1},

	POST _bulk
	{ "index" : { "_index" : "flare" } }
	{ "id": 1, "name": "flare" }
	{ "index" : { "_index" : "flare" } }
	{ "id": 2, "name": "analytics", "parent": 1 }
	{ "index" : { "_index" : "flare" } }
	{ "id": 3, "name": "cluster", "parent": 2 }
	{ "index" : { "_index" : "flare" } }
	{ "id": 4, "name": "AgglomerativeCluster", "parent": 3, "size": 3938 }
	{ "index" : { "_index" : "flare" } }

	{
	"trigger": {
	"schedule": {
	"interval": "5s"
	}
	},
	"input": {
	"search": {
	"request": {
	"search_type": "query_then_fetch",

	digraph G {
	graph [fontname = "helvetica" pad=".5"];
	node [fontname = "helvetica" shape="underline"]
	edge [fontname = "helvetica" color="grey"];

	"explorer_controller.js" -> "$scope" -> "$scope.appState"

	"$scope.appState" -> "ACTION.INITIALIZE"

	"timerangeListener" -> "ACTION.RELOAD"

	export const benchmarker = {
	benchmarks: [],
	getAverage() {
	return this.benchmarks.reduce((p, c) => p + c, 0) / this.benchmarks.length;
	},
	start() {
	return (+new Date());
	},
	end(start) {
	this.benchmarks.push((+new Date()) - start);

	license: Apache-2.0
	border: no
	height: 200