hanrw

How to use PlantUML with Markdown

PlantUML is a really awesome way to create diagrams by writing code instead of drawing and dragging visual elements. Markdown is a really nice documentation tool.

Here's how I combine the two, to create docs with embedded diagrams.

Step 0: Setup

Get the command-line PlantUML from the download page or your relevant package manager.

hanrw

import org.apache.commons.logging.LogFactory
import org.springframework.beans.BeansException
import org.springframework.context.ApplicationContext
import org.springframework.context.ApplicationContextAware
import org.springframework.context.annotation.ImportResource
import org.springframework.context.support.GenericXmlApplicationContext
import org.springframework.core.io.Resource
import org.springframework.stereotype.Component
import javax.annotation.PostConstruct

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import org.bouncycastle.util.encoders.Hex;
import org.web3j.crypto.*;
import java.math.BigInteger;

public class ECCExample {

    public static String compressPubKey(BigInteger pubKey) {
        String pubKeyYPrefix = pubKey.testBit(0) ? "03" : "02";
        String pubKeyHex = pubKey.toString(16);
        String pubKeyX = pubKeyHex.substring(0, 64);

hanrw

Mastering Programming - by Kent Beck

From years of watching master programmers, I have observed certain common patterns in their workflows. From years of coaching skilled journeyman programmers, I have observed the absence of those patterns. I have seen what a difference introducing the patterns can make. Here are ways effective programmers get the most out of their precious 3e9 seconds on the planet. The theme here is scaling your brain. The journeyman learns to solve bigger problems by solving more problems at once. The master learns to solve even bigger problems than that by solving fewer problems at once. Part of the wisdom is subdividing so that integrating the separate solutions will be a smaller problem than just solving them together.

Time

Slicing - Take a big project, cut it into thin slices, and rearrange the slices to suit your context. I can always slice projects finer and I can always find new permutations of the slices that meet different needs

hanrw

import org.springframework.context.annotation.Bean;
import org.springframework.http.HttpHeaders;
import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
import org.springframework.security.config.web.server.ServerHttpSecurity;
import org.springframework.security.web.server.SecurityWebFilterChain;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.reactive.CorsConfigurationSource;
import org.springframework.web.cors.reactive.UrlBasedCorsConfigurationSource;

import java.util.ArrayList;

hanrw

import akka.actor.ActorSystem
import akka.http.scaladsl.Http
import akka.http.scaladsl.server.{Directives, Route}
import akka.http.scaladsl.marshallers.sprayjson.SprayJsonSupport

import spray.json._

import scala.concurrent.{ExecutionContextExecutor, Future}

/**

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upstream nexus_admin { server 192.168.2.233:8081 ; }
upstream nexus_registry { server 192.168.2.233:8082 ; }

server {
    listen 80;
    listen 443 ssl;
    server_name registry.docker.com;
    access_log  /dev/null;
    error_log   /var/nginx/logs/registry.docker.com.error.log;
    ssl_certificate      /etc/nginx/cert/registry.docker.com_server.crt;

hanrw

# Simple way ============================
function setjdk() {
  if [ $# -ne 0 ]; then
    if [ -n "${JAVA_HOME+x}" ]; then
        removeFromPath "$JAVA_HOME/bin"
    fi

    export JAVA_HOME=`/usr/libexec/java_home -v $@`
    export PATH=$JAVA_HOME/bin:$PATH
  fi

hanrw

# check if job exists
curl -XGET 'http://jenkins/checkJobName?value=yourJobFolderName' --user user.name:YourAPIToken

# with folder plugin
curl -s -XPOST 'http://jenkins/job/FolderName/createItem?name=yourJobName' --data-binary @config.xml -H "Content-Type:text/xml" --user user.name:YourAPIToken

# without folder plugin
curl -s -XPOST 'http://jenkins/createItem?name=yourJobName' --data-binary @config.xml -H "Content-Type:text/xml" --user user.name:YourAPIToken

# create folder

hanrw

#301 Redirects for .htaccess

#Redirect a single page:
Redirect 301 /pagename.php http://www.domain.com/pagename.html

#Redirect an entire site:
Redirect 301 / http://www.domain.com/

#Redirect an entire site to a sub folder
Redirect 301 / http://www.domain.com/subfolder/