Mikael Gueck mikaelhg

🏠

Working from home

Cool kille med läsk i hand.

mikaelhg / Sandbox.java

Last active August 29, 2015 14:03

PEG Sandbox

	package io.mikael.peg;

	import java.util.Arrays;

	public class Sandbox {

	public static void main(String[] args) {

	System.out.printf("character('a', 'h').match(\"far\") = <%s>%n",
	character('a', 'h').match("far"));

mikaelhg / LambdaConverter.java

Last active August 29, 2015 14:02

Playing around with ideas for easily readable bean or even JSON converters using Java 8 lambdas

	package io.mikael.convert;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.function.*;

	public class LambdaConverter {

	public static class Foo {
	public String getA() { return "A"; }

mikaelhg / snippet.java

Created April 30, 2014 16:02

Java 8 lambda streams come in handy when parsing HTML with Jsoup and Lombok @builders

	Document doc = Jsoup.parse(...);

	doc.select("form#login").stream()
	.map(e -> e.attr("action"))
	.map(action -> find(action, LINK_ID_PATTERN).group(1))
	.filter(Objects::nonNull)
	.findFirst()
	.ifPresent(builder::id);

	content.select("div#datePublished").stream()

mikaelhg / ruby-inspect-parser.rb

Last active August 29, 2015 14:00

A Parslet parser for a random Ruby .inspect dump

	#!/usr/bin/env ruby

	require 'parslet'
	require 'pp'
	require 'awesome_print'

	class InspectParser < Parslet::Parser

	# TOKENS

mikaelhg / OptionalDemo.java

Created April 25, 2014 20:34

Lambda / Optional demos

	private static <T> boolean fillIf(final Supplier<T> supplier, final Consumer<T> consumer) {
	return fillIf(supplier, consumer, null);
	}

	private static <T> boolean fillIf(final Supplier<? extends T> supplier, final Consumer<T> consumer, final Consumer<Exception> exceptionHandler) {
	try {
	final T data = supplier.get();
	if (null == data) {
	return false;
	}

mikaelhg / check_clock.c

Created February 16, 2014 07:43

Run JDK check for Linux clock monotonicity manually

	// gcc check_clock.c -ldl -o check_clock
	// ripped from http://hg.openjdk.java.net/jdk8u/jdk8u-gate/hotspot/file/9c2ddd17626e/src/os/linux/vm/os_linux.cpp

	#include <dlfcn.h>
	#include <stdio.h>
	#include <linux/time.h>

	typedef int clockid_t;

	int main(int argc, const char* argv[]) {

mikaelhg / gist:5747171

Created June 10, 2013 07:57

socat port forward

sudo socat TCP4-LISTEN:80,fork TCP4:localhost:9000

mikaelhg / etc_apt_apt.conf.d_99fastdownload

Created April 28, 2013 19:57

Ubuntu automatic mirror configuration and fast package download for Vagrant guests

Acquire::http::Pipeline-Depth "15";

mikaelhg / HazelTest.java

Last active December 16, 2015 14:09

Hazelcast vs. Infinispan

	import com.carrotsearch.junitbenchmarks.BenchmarkOptions;
	import com.carrotsearch.junitbenchmarks.BenchmarkRule;
	import com.hazelcast.config.Config;
	import com.hazelcast.core.Hazelcast;
	import com.hazelcast.core.HazelcastInstance;
	import org.junit.AfterClass;
	import org.junit.BeforeClass;
	import org.junit.Rule;
	import org.junit.Test;

mikaelhg / precise_sources_fi.list

Created April 11, 2013 10:46

Precise apt-get sources.list for Finnish mirrors

	# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
	# newer versions of the distribution.
	deb http://fi.archive.ubuntu.com/ubuntu/ precise main restricted
	deb-src http://fi.archive.ubuntu.com/ubuntu/ precise main restricted

	## Major bug fix updates produced after the final release of the
	## distribution.
	deb http://fi.archive.ubuntu.com/ubuntu/ precise-updates main restricted
	deb-src http://fi.archive.ubuntu.com/ubuntu/ precise-updates main restricted