Libing Chen linux-china

FullStack software engineer driven by AI now, with 25+ years Java experience

linux-china / WebSocketConfig.java

Created January 17, 2020 19:05

WebSocketConfig for WebFlux

	import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
	import org.springframework.context.annotation.Bean;
	import org.springframework.context.annotation.Configuration;
	import org.springframework.web.reactive.HandlerMapping;
	import org.springframework.web.reactive.handler.SimpleUrlHandlerMapping;
	import org.springframework.web.reactive.socket.WebSocketHandler;
	import org.springframework.web.reactive.socket.server.support.WebSocketHandlerAdapter;

	import java.util.HashMap;
	import java.util.Map;

linux-china / Makefile

Created October 12, 2019 23:24

Makefile for Emscripten

	WASM_MODULE = cpp17

	CC = em++
	CXXFLAGS = --bind -O3 -x c++ -std=c++17 -s ALLOW_MEMORY_GROWTH=1 -s 'MALLOC="emmalloc"'

	.PHONY : all clean
	all: $(WASM_MODULE).wasm ## Build all Wasm

	$(WASM_MODULE).wasm: $(WASM_MODULE).cpp ## Compile cpp17.wasm
	$(CC) $(CXXFLAGS) -o $(WASM_MODULE).js $(WASM_MODULE).cpp

linux-china / object-relations.puml

Created August 5, 2019 17:30

Composite, Aggregate and Relation

	@startuml

	class Building {
	- apartments
	}
	Building --* Apartment: contains >

	class Car {
	- wheels
	}

linux-china / gist:7a8610a752f5754f6f7cbb216efae8a1

Created September 6, 2018 04:36

gdb debug in mac

https://gist.github.com/gravitylow/fb595186ce6068537a6e9da6d8b5b96d

linux-china / kotlin2native.sh

Created August 16, 2018 22:58

Kotlin script to native image

	kotlinc -include-runtime hello.kt -d hello.jar
	native-image -jar hello.jar

linux-china / FoodOrder.kt

Created August 14, 2018 17:09

Kotlin Builder Pattern Demo

	package org.mvnsearch.builder

	class FoodOrder private constructor(builder: FoodOrder.Builder) {

	val bread: String?
	val meat: String?

	init {
	this.bread = builder.bread
	this.meat = builder.meat

linux-china / envoy-schema.json

Last active June 1, 2022 23:13

Envoy configuration json schema for Json and Yaml

	{
	"$schema": "http://json-schema.org/draft-07/schema#",
	"title": "Envoy Proxy config schema",
	"description": "JSON Schema for Envoy Proxy config",
	"type": "object",
	"properties": {
	"admin": {
	"type": "object",
	"description": "Configuration for the local administration HTTP server",
	"properties": {

linux-china / FilenameComparator.java

Created February 26, 2018 05:58

Order Versioned File Names Semantically in Java

	public final class FilenameComparator implements Comparator<String> {

	private static final Pattern NUMBERS =
	Pattern.compile("(?<=\\D)(?=\\d)\|(?<=\\d)(?=\\D)");
	private static final Pattern FILE_ENDING =
	Pattern.compile("(?<=.)(?=\\..)");

	@Override
	public final int compare(String o1, String o2) {
	if (o1 == null \|\| o2 == null)

linux-china / TcpIpPropertySourceConfig.java

Created January 6, 2018 10:54

Spring Boot to set server.address

	import org.springframework.beans.factory.annotation.Autowired;
	import org.springframework.boot.autoconfigure.web.ServerProperties;
	import org.springframework.context.annotation.Configuration;

	import javax.annotation.PostConstruct;
	import java.net.Inet6Address;
	import java.net.InetAddress;
	import java.net.NetworkInterface;
	import java.util.Arrays;
	import java.util.Collections;

linux-china / auto_load_bashrc.sh

Created August 30, 2017 06:36

Use .bashrc.d directory instead of bloated .bashrc