Lars Behnke lbehnke

Summary of book "Clean Architecture" by Robert C. Martin

Uncle Bob, the well known author of Clean Code, is coming back to us with a new book called Clean Architecture which wants to take a larger view on how to create software.

Even if Clean Code is one of the major book around OOP and code design (mainly by presenting the SOLID principles), I was not totally impressed by the book.

Clean Architecture leaves me with the same feeling, even if it's pushing the development world to do better, has some good stories and present robust principles to build software.

The book is build around 34 chapters organised in chapters.

How to create an HTTPS certificate for localhost domains

This focuses on generating the certificates for loading local virtual hosts hosted on your computer, for development only.

Do not use self-signed certificates in production ! For online certificates, use Let's Encrypt instead (tutorial).

	package com.company.web.site;

	import com.google.common.collect.Lists;

	import net.sf.jasperreports.engine.JasperCompileManager;
	import net.sf.jasperreports.engine.JasperFillManager;
	import net.sf.jasperreports.engine.JasperPrint;
	import net.sf.jasperreports.engine.JasperReport;
	import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
	import net.sf.jasperreports.engine.design.JasperDesign;

	class LdapApp
	{
	static DirContext ldapContext;
	public static void main (String[] args) throws NamingException
	{
	try
	{
	Hashtable<String, String> ldapEnv = new Hashtable<String, String>(11);
	ldapEnv.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
	ldapEnv.put(Context.PROVIDER_URL, "ldap://localhost:389");

	for index in 0...4 {}
	for name in names {}
	for (key, value) in map {}
	for var i = 0; i < 10; i++ {}
	for i in 0..<n {}
	for c in "string" {}
	while i < n {}
	do {} while i < n

	var secondsSince1970 = NSDate.date().timeIntervalSince1970

	var dateFormatter = NSDateFormatter()
	dateFormatter.dateFormat = "HH:mm"
	let thisDate = NSDate(timeIntervalSince1970: secondsSince1970);
	println("Time : " + dateFormatter.stringFromDate(thisDate))

	let temperature = (jsonResult["list"]? as NSArray)[0]["main"] as NSDictionary)["temp"] as? Double
	let celsius = round(tempResult - 273.15)

	if let city = (jsonResult["city"]? as? NSDictionary) {
	if let country = (city["country"] as? String) {
	println("Country :" + country );
	}
	}

	public interface DendrogramFormatter {

	String format(DendrogramNode root);
	}

	import SpriteKit

	class MySKScene: SKScene {
	// implementation
	}

	var temperature:Double = 35.0
	self.label.text = "\(temperature)°"