VenkataRaju’s gists

VenkataRaju / FileCreationListener.java

Created December 10, 2015 09:11

	Path path = Paths.get("D:\\Directory");
	WatchService watchService = path.getFileSystem().newWatchService();
	path.register(watchService, StandardWatchEventKinds.ENTRY_CREATE);

	System.out.println("Watching...");

	for (;;)
	{
	WatchKey wk = watchService.take();
	wk.pollEvents().forEach(we -> System.out.println(we.context() + ", " + we.kind() + ", " + we.count()));

VenkataRaju / AnyThrowableMatchesPredicateInThrowableChain.java

Last active November 17, 2015 09:26

Check if any Throwable matches the Predicate in Throwable chain

	package test;

	import java.io.IOException;
	import java.util.function.Predicate;

	public class AnyThrowableMatchesPredicateInThrowableChain
	{
	public static void main(String[] args) throws IOException
	{
	Throwable throwable = new Throwable("sdsdf");

VenkataRaju / comparison_function_by_operator.js

Last active October 6, 2015 08:39

JavaScript comparison function by operator

	var comparisonFunctionByOperator = (function ()
	{
	var hash = {
	"<" : (left, right) => left < right,
	"<=" : (left, right) => left <= right,
	">" : (left, right) => left > right,
	">=" : (left, right) => left >= right,
	"===": (left, right) => left === right,
	"!==": (left, right) => left !== right,
	"==" : (left, right) => left == right,

VenkataRaju / basic_nashorn_script.js

Created August 5, 2015 08:42

Basic Nashorn Script


	if (typeof $ARG === "undefined" \|\| $ARG.length !== 2)
	print("Usage: jjs -scripting --language=es6 test.js -- arg1 arg2");
	else
	doSomething.apply(null, $ARG);

	function doSomething(first, second)
	{
	print("first: " + first + ", second: " + second);
	for (let i = 0; i < 2; i++)

VenkataRaju / JaxbPartialObjectParser.java

Last active September 7, 2017 17:47

JAXB Partial Object Parsing

	public class JaxbPartialObjectParser
	{
	public static void main(String[] args) throws Exception
	{
	String xmlStr = "<root><student><name>Raju</name></student></root>";

	// Assuming Student class is JAXB generated

	Iterator<Student> it = extractPartialObjects(new StringReader(xmlStr), QName.valueOf("student"), Student.class);
	while (it.hasNext())

VenkataRaju / TaskTracker.html

Created May 12, 2015 13:12

Simple reminder application written in HTML (Makes use of Local Storage API)

VenkataRaju / XmlValidator.java

Last active August 29, 2015 14:19

Validates XML files against XSD

	package raju.javautils.xml;

	import java.io.File;

	import javax.xml.transform.stream.StreamSource;
	import javax.xml.validation.Schema;
	import javax.xml.validation.SchemaFactory;
	import javax.xml.validation.Validator;

	import org.xml.sax.SAXException;

VenkataRaju / PropertiesFileDebugHelper.java

Last active August 29, 2015 14:18

Java Properties File Debug Helper

	package raju.javautil;

	import java.io.BufferedReader;
	import java.io.ByteArrayOutputStream;
	import java.io.FileInputStream;
	import java.io.IOException;
	import java.io.InputStream;
	import java.io.InputStreamReader;
	import java.io.UnsupportedEncodingException;
	import java.nio.charset.Charset;

VenkataRaju / CharEscaper.java

Last active August 29, 2015 14:17

Escapes specified character with another specified character, similarly unescapes and splits a string

	import java.util.ArrayList;
	import java.util.List;

	public final class CharEscaper
	{
	private final char escapeChar, escapeForEscapeChar;

	public CharEscaper(char escapeChar, char escapeForEscapeChar)
	{
	if (escapeChar == escapeForEscapeChar)

VenkataRaju / TopNBigFiles.java

Last active August 29, 2015 14:15

Top big files in a directory

	package raju.fileutils;

	import java.io.IOException;
	import java.nio.file.FileSystems;
	import java.nio.file.Files;
	import java.nio.file.Path;
	import java.nio.file.PathMatcher;
	import java.nio.file.Paths;
	import java.util.ArrayList;
	import java.util.Arrays;

Venkata Raju VenkataRaju