gkhays / StringUtils.java

Created August 6, 2013 20:49

Quick and dirty C# style isNullOrEmpty helper for Java.

	package org.test;

	public class Utils
	{
	private Utils() {}

	/**
	* Determines whether or not the given string is null or contains an empty
	* value.
	* @param s

gkhays / ClientThread.java

Last active December 20, 2015 23:19

This is a set of classes used to test FIPS 140-2 and SSL communications in general. The OpenSSL s_server and s_client utilities are a great resource to use as partners in the testing process.

	package org.gkh.net;

	import java.io.BufferedReader;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.InputStreamReader;
	import java.io.OutputStream;
	import java.io.PrintWriter;
	import java.util.logging.Logger;

gkhays / minecraft-server

Created June 17, 2014 15:04

Run Minecraft Server as a Daemon

	I liked this one the best: http://www.minecraftforum.net/topic/74402-setup-linux-daemon/.

	1) Get the code snippet below into a file in /etc/init.d/. This will be referenced as FILENAME henceforth. I used:
	/etc/init.d/minecraft-server:

	minecraft-server

	#! /bin/sh
	#
	# network Bring up/down networking

gkhays / mc-parselog

Created June 17, 2014 15:14

Minecraft Server Log One-Liners

	Create a list of users based on logins
	grep "logged in with entity id" server.log \| cut -f4 -d" " \| sort -u > users.txt

	Get connection information:
	Date/Time, Name, and IP Address
	grep logged server.log \| cut -f1,2,4,5 -d" "

	Get disconnect information:
	Date/Time, Name
	grep disconnect server.log \| cut -f1,2,4 -d" "

gkhays / Java-Mail.md

Last active January 5, 2022 19:31

How to use JavaMail to send email via an SMTP server. I was recently working with a server component that allowed for scheduling reports, which included email notification. I wanted to isolate the email notification portion. Check. :)

JavaMail

SMTP test driver using JavaMail version 1.5.2.

# SSL/TLS port: 465
# Otherwise: 587
smtp.host=smtp.mail.yahoo.com
smtp.port=465
smtp.useSsl=true

gkhays / HexUtil.java

Created July 3, 2014 21:43

	package org.gkh.test;

	/*
	* Utility class for converting to and from hexadecimal.
	*/
	public class HexUtil {

	private static final int SEG_SIZE = 16;

	private static final char[] hexDigits = {

gkhays / StringSwitch.java

Created July 3, 2014 21:46

Prior to JDK 1.7, you had to use an approximation to evaluate strings in a switch statement. Much easier now!

	package org.gkh.test;

	/*
	* Prior to JDK 1.7, you had to use an approximation to evaluate strings in a
	* switch statement. See the following links.
	* http://www.xefer.com/2006/12/switchonstring
	* http://stackoverflow.com/questions/338206/switch-statement-with-strings-in-java
	* http://docs.oracle.com/javase/7/docs/technotes/guides/language/strings-switch.html
	*/
	public class StringSwitch {

gkhays / TestQueuingThread.java

Last active August 29, 2015 14:03

A simple inter-process communication (IPC) utility that watches for the creation of tiles in a specific subdirectory and then queues them for processing. Currently hard-coded to watch a subdirectory called "Locker" located in the test directory relative to the execution path.

	package org.gkh.test;

	import java.nio.file.Path;
	import java.util.concurrent.ArrayBlockingQueue;
	import java.util.concurrent.BlockingQueue;

	/**
	* This is a demonstration Producer/Consumer that queues and dequeues new file
	* items as they are created in the directory we are watching.
	*

gkhays / JrxmlParser.java

Created July 7, 2014 19:40

A simple JasperReports parser that also demonstrates issues with UTF-8 encoded XML files.

	package org.gkh.test;

	import java.io.BufferedInputStream;
	import java.io.File;
	import java.io.FileInputStream;
	import java.io.IOException;
	import java.util.LinkedHashSet;
	import java.util.List;
	import java.util.Set;

gkhays / GoogleAuthCode.java

Last active August 29, 2015 14:20

Working with Google APIs

	package com.netiq;

	import java.awt.Desktop;
	import java.awt.Desktop.Action;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.UnsupportedEncodingException;
	import java.net.URI;
	import java.net.URLEncoder;
	import java.util.Properties;

Garve Hays gkhays

JavaMail