Nicholas Vaidyanathan leadVisionary

leadVisionary / Demo.java

Last active November 23, 2019 00:53

QRCode from an Image in Java

	import java.io.InputStream;
	import java.io.ByteArrayInputStream;
	import javax.imageio.ImageIO;
	import java.awt.image.BufferedImage;
	import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
	import com.google.zxing.LuminanceSource;
	import com.google.zxing.BinaryBitmap;
	import com.google.zxing.common.HybridBinarizer;
	import com.google.zxing.qrcode.QRCodeReader;
	import com.google.zxing.Result;

leadVisionary / AppendAsGZip.java

Created April 22, 2018 00:43

Why SelfEncapsulation?

	import java.io.BufferedReader;
	import java.io.FileInputStream;
	import java.io.FileOutputStream;
	import java.io.IOException;
	import java.io.InputStreamReader;
	import java.nio.charset.StandardCharsets;
	import java.nio.file.Path;
	import java.util.logging.Level;
	import java.util.logging.Logger;
	import java.util.stream.Collectors;

leadVisionary / demo.html

Created February 21, 2018 03:49

Working ECMAScript modules

	<html>
	<head>
	<title>An E-commerce retailer</title>
	</head>
	<body>
	<h1> Hello <span id="greeting">Placeholder</span>!</h1>
	<h2> Please <a href="buy/12345">buy</a> this product</h2>
	</body>
	<script src="greeting.js" type="module"></script>
	<script type="module">

leadVisionary / demo.html

Created February 21, 2018 03:47

ECMAScript modules part dumb

	<html>
	<head>
	<title>An E-commerce retailer</title>
	</head>
	<body>
	<h1>
	Hello <span id="greeting">Placeholder</span>!</h1>
	<h2>
	Please <a href="https://www.blogger.com/buy/12345">buy</a> this product</h2>
	</body>

leadVisionary / demo.html

Created February 21, 2018 03:46

Trying ECMAScript modules part duh

	<html>
	<head>
	<title>An E-commerce retailer</title>
	</head>
	<body>
	<h1>
	Hello <span id="greeting">Placeholder</span>!</h1>
	<h2>
	Please <a href="https://www.blogger.com/buy/12345">buy</a> this product</h2>
	</body>

leadVisionary / cross_platform_span_update.js

Created February 21, 2018 03:42

First Attempt at ECMAScript modules

	export default function crossPlatformSpanTextUpdate(span, text) {
	if ('textContent' in span) {
	span.textContent = text;
	} else {
	span.innerText = text;
	}
	}

leadVisionary / AllowMeToLetYouHandleErrors.java

Created January 24, 2013 21:38

How I prefer to handle Java's IllegalInvocationException.java

	import java.lang.reflect.InvocationTargetException;


	public class AllowMeToLetYouHandleErrors {
	public static void main(String[] args) {

	System.out.println("Yo, can I eat an error?");

	try {

leadVisionary / HttpCourier.java

Created November 28, 2012 10:42

A study in expressive programming

	import java.io.IOException;
	import java.net.URI;
	import java.net.URISyntaxException;

	import org.apache.commons.logging.Log;
	import org.apache.commons.logging.LogFactory;
	import org.apache.http.client.ClientProtocolException;
	import org.apache.http.client.HttpClient;
	import org.apache.http.client.ResponseHandler;
	import org.apache.http.client.methods.HttpGet;

Created September 5, 2012 21:13

Not like this

	@Test
	public void testConfiguration_shouldHaveWrittenTheLaterOne() throws Exception {
	ServiceReference[] allServiceReferences = ctx.getAllServiceReferences(ConfigurationAdmin.class.getName(), null);
	for (ServiceReference serviceReference : allServiceReferences) {
	ConfigurationAdmin service = (ConfigurationAdmin) ctx.getService(serviceReference);
	try {
	org.osgi.service.cm.Configuration configuration = service.getConfiguration("tests");
	assertEquals("myvalue2", configuration.getProperties().get("mykey"));
	return;
	} catch (Exception e) {

leadVisionary / KarafTest.java

Created August 21, 2012 16:53

Karaf Testing with Pax Exam

	@RunWith(JUnit4TestRunner.class)
	@ExamReactorStrategy(AllConfinedStagedReactorFactory.class)
	public class KarafTest {

	@Inject
	CommandProcessor commandProcessor;

	@ProbeBuilder
	public TestProbeBuilder probeConfiguration(TestProbeBuilder probe) {
	probe.setHeader(Constants.DYNAMICIMPORT_PACKAGE,