bobaikato’s gists

bobaikato / ExtractHashtags.java

Created May 11, 2022 17:19

Extract HashTags from Text

	public static @NotNull List<String> extractHashtags(final @NotNull String text) {
	final var hashTags = new ArrayList<String>();

	Arrays.stream(text.split("\\s"))
	.filter(word -> word.startsWith(HASH))
	.distinct()
	.parallel()
	.forEachOrdered(
	word -> {
	if (word.matches("[#A-Za-z0-9]+") && word.length() > 1) {

bobaikato / PrototypeScope.java

Created April 4, 2022 18:28

Prototype Scope Example

	@Bean
	@Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE)
	public PrototypeServiceBean prototypeServiceBean(){
	return new PrototypeServiceBean();
	}

bobaikato / ConcurrentSetPoc.java

Created December 15, 2021 22:28

Concurrent Set Proof of concept.

	public class ConcurrentSetPoc {

	private String url;

	public static void main(String[] args) throws Exception {

	final Set<Object> myConcurrentSet = ConcurrentHashMap.newKeySet();

	CompletableFuture.runAsync(
	() -> {

bobaikato / SseEmitterWebConfig.java

Created December 9, 2021 18:37

SsEmitter Connection stay alive config

	@Configuration
	public class SseEmitterWebConfig implements WebMvcConfigurer {
	@Override
	public void configureAsyncSupport(AsyncSupportConfigurer configurer) {
	// This timeout determines how long the connection is alive for. Use appropriately.
	configurer.setDefaultTimeout(Long.MAX_VALUE);
	}
	}

bobaikato / emojis.json

Created October 14, 2021 21:19 — forked from oliveratgithub/emojis.json

Emoji-list with emojis, names, shortcodes, unicode and html entities [massive list]

	{
	"emojis": [
	{"emoji": "👩‍👩‍👧‍👧", "name": "family: woman, woman, girl, girl", "shortname": ":woman_woman_girl_girl:", "unicode": "1F469 200D 1F469 200D 1F467 200D 1F467", "html": "👩&zwj;👩&zwj;👧&zwj;👧", "category": "People & Body (family)", "order": ""},
	{"emoji": "👩‍👩‍👧‍👦", "name": "family: woman, woman, girl, boy", "shortname": ":woman_woman_girl_boy:", "unicode": "1F469 200D 1F469 200D 1F467 200D 1F466", "html": "👩&zwj;👩&zwj;👧&zwj;👦", "category": "People & Body (family)", "order": ""},
	{"emoji": "👩‍👩‍👦‍👦", "name": "family: woman, woman, boy, boy", "shortname": ":woman_woman_boy_boy:", "unicode": "1F469 200D 1F469 200D 1F466 200D 1F466", "html": "👩&zwj;👩&zwj;👦&zwj;👦", "category": "People & Body (family)", "order": ""},
	{"emoji": "👨‍👩‍👧‍👧", "name": "family: man, woman, girl, girl", "shortname": ":man_woman_girl_girl:", "unicode": "1F468 200D 1F469 200D 1F467 200D 1F467", "html": "👨&zwj;👩&z

bobaikato / docker-compose.yml

Last active December 31, 2023 16:06

ArangoDB Cluster — Stateful. One "default" is having 3 servers, each running one agent/coordinator/dbserver each. That's good for many situations. In general however, it's not true that you should have the same amount each. For example, you need an odd number of agents, usually 3. If you have 2n+1 agents, n may fail without interrupting service …

	version: "3.7"
	services:

	#ARANGO Agencies Start

	#Arango Agency 1 start
	arangodb-agency1:
	image: arangodb/arangodb
	environment:
	- ARANGO_RANDOM_ROOT_PASSWORD=1

bobaikato / docker-compose.yml

Created August 13, 2021 19:11 — forked from neunhoef/docker-compose.yml

Docker compose file to start a local arangodb cluster

	version: '2'
	services:
	agency:
	image: arangodb/arangodb
	environment:
	- ARANGO_NO_AUTH=1
	command: arangod --server.endpoint tcp://0.0.0.0:5001 --server.authentication false --agency.activate true --agency.size 1 --agency.supervision true --database.directory /var/lib/arangodb3/agency1

	coordinator:
	image: arangodb/arangodb

bobaikato / gist:90c4c278996f98fdc0618bff1e0a9c89

Created November 30, 2020 12:44 — forked from psayre23/gist:c30a821239f4818b0709

Runtime Complexity of Java Collections

	Below are the Big O performance of common functions of different Java Collections.


	List \| Add \| Remove \| Get \| Contains \| Next \| Data Structure
	---------------------\|------\|--------\|------\|----------\|------\|---------------
	ArrayList \| O(1) \| O(n) \| O(1) \| O(n) \| O(1) \| Array
	LinkedList \| O(1) \| O(1) \| O(n) \| O(n) \| O(1) \| Linked List
	CopyOnWriteArrayList \| O(n) \| O(n) \| O(1) \| O(n) \| O(1) \| Array

bobaikato / docker-compose.yml

Last active March 9, 2021 16:40

Core service. ELK, Kafka, kafdrop, Redis, Postrgesql, PgAdmin

	---
	version: '3.8'
	services:
	elk:
	image: sebp/elk
	ports:
	- "5601:5601" #Kibana web interface
	- "9200:9200" #Elasticsearch JSON interface
	- "5044:5044" #Logstash Beats interface

bobaikato / detectLoopInLinkedList.java

Created September 10, 2020 14:14

Detect Loop in LinkedList

	boolean detectLoop(final Node head) {
	Node slowNode = head;
	Node fastNode = head;

	while (slowNode != null && slowNode.next != null && fastNode.next.next != null) {
	fastNode = fastNode.next.next;
	slowNode = slowNode.next;

	if (fastNode == head \|\| slowNode == head) {
	return true;

	Below are the Big O performance of common functions of different Java Collections.


	List \| Add \| Remove \| Get \| Contains \| Next \| Data Structure
	---------------------\|------\|--------\|------\|----------\|------\|---------------
	ArrayList \| O(1) \| O(n) \| O(1) \| O(n) \| O(1) \| Array
	LinkedList \| O(1) \| O(1) \| O(n) \| O(n) \| O(1) \| Linked List
	CopyOnWriteArrayList \| O(n) \| O(n) \| O(1) \| O(n) \| O(1) \| Array

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