rafaelpontezup

import org.slf4j.LoggerFactory
import org.springframework.jdbc.core.JdbcTemplate
import org.springframework.stereotype.Component
import org.springframework.transaction.annotation.Propagation
import org.springframework.transaction.annotation.Transactional
import java.time.Duration

interface LockManager {
    fun <T> tryWithLock(key: Long, timeout: Duration, function: () -> T): T
}

clemensv

title
Elements of Messaging and Eventing Platforms

This document provides a brief overview of the essential elements of a messaging and eventing platform and how they relate to each other.

Message and Event Broker Categories

missingfaktor

Thread Pools

Thread pools on the JVM should usually be divided into the following three categories:

1. CPU-bound
2. Blocking IO
3. Non-blocking IO polling

Each of these categories has a different optimal configuration and usage pattern.

fernandrone

#!/usr/bin/env sh
#
# Simple script that prints out the top N most-used words in a text from standard input.
#
# Inspired by https://buttondown.email/hillelwayne/archive/donald-knuth-was-framed/. The short 
# linux script is first shown at https://www.cs.tufts.edu/~nr/cs257/archive/don-knuth/pearls-2.pdf

topw() {
   tr -cs A-Za-z '\n' | tr A-Z a-z | sort | uniq -c | sort -rn | sed "$N"q
}

stettix

Things I believe

This is a collection of the things I believe about software development. I have worked for years building backend and data processing systems, so read the below within that context.

Agree? Disagree? Feel free to let me know at @JanStette. See also my blog at www.janvsmachine.net.

Fundamentals

Keep it simple, stupid. You ain't gonna need it.

purcell

-- Let's say you have a table full of work:

CREATE TABLE tasks (
       id UUID PRIMARY KEY NOT NULL DEFAULT gen_random_uuid(),
       status TEXT NOT NULL DEFAULT 'pending',
       payload JSON NOT NULL, -- or just have meaningful columns!
       created_at TIMESTAMP NOT NULL DEFAULT NOW()
);

TimothyJones

#!/bin/bash -eu
if [ -z "${LIB_ROBUST_BASH_SH:-}" ]; then
  LIB_ROBUST_BASH_SH=included

  function error {
    echo "Error:  ${1:-}"
  }

  # Check to see that we have a required binary on the path
  function require_binary {

vy

package com.vlkan.demo.spring;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

import javax.annotation.PostConstruct;

rponte

public class HowToUseIt {
 
  /**
   * Usually we'll have a single instance per client
   */
  private static final SingleThreadPool THREAD_POOL = new SingleThreadPool();
  
  public void executeAsync() {
    try {
      

mattmc3

layout	author	title	revision	version	description
default	mattmc3	Modern SQL Style Guide	2019-01-17	1.0.1	A guide to writing clean, clear, and consistent SQL.

Modern SQL Style Guide