If you want to add number of days from a date and calculate a new date, you can use following code to do so. please note that in this case number of days are variable and calculated runtime… Read More

Today we will discuss how to send emails from your Java app. In general, you have two main options: either use the native built-in functionality, or try some external packages. Java provides… Read More

This example app will show the difference between Foreach and splitter in Mule version 3.x. Collection splitter splits the incoming collection object and then you have to put a aggregator t… Read More

In this blog, i will explain how to enable AWS Cloudwatch Logs for your Mule CloudHub Application. Cloudwatch Logs Services are provided by AWS so that you can better mange your logs. It is… Read More

MuleSoft cloudhub provides inbuilt loadbalancer in the form of {appname}.cloudhub.io, which forwards the request on mule-worker-{appname}.au.cloudhub.io:8081, if we are using http port. When… Read More

This is a simple example showing how to call another flow and include that result in the resultant xml file. The opertaion "lookup" should be used in dataweave. xmlns:spring="http://www.sp… Read More

While deploying an application which was deployed successfully to Cloudhub previously using maven, I got the following error : [INFO] Deploying application MyApp-dev to Cloudhub[ERROR] Doma… Read More

Below Examples shows how to write and read XLSX and XLS files using Java . package com.sun;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io… Read More

cloudHub ignores the local log4j.xml configuration and even if we enable DEBUG logging in the xml file , and deploy it in cloudhub , we see no changes . To enable logging in cloud hub , we… Read More

Poller in MULE ESB is a very important component when you want to keep polling a endpoint for changes and then process it . Most of the times we do not know how big the changes will be and h… Read More

                   Digitized and Automated Infrastructure is all we need !!!  Before we begin learning and coding o… Read More

This is a simple example on how to use Apache HttpClient 4.5 with connection pool manager to request https urls . package com.javaroots;import java.security.KeyManagementException;import ja… Read More

  Docker is a relatively new and rapidly growing project that allows creating very light “virtual machines”.PrerequisitesThere are no specific skills needed for this tutoria… Read More

I have encountered this error when i was trying to insert a big list of object in to database , using jdbc . The list size was approximately 100k . One way to resolve this error to increase… Read More

I have got the following error when i tried to write java 8 stream in my expression component . Message : [Error: Malformed expression][Near : {... t.stream().map(a->a+"dd"… Read More

This is simple example in mule demonstrating use of SessionVar , FlowVar , SubFlow , Vm , ForEach ,Groovy and Expression Component . name="myRequestConfig" doc:name="HTTP Listener Configu… Read More

We can create file upload functionality in mule which is described in this blog post. But this solution does not work with mule version 3.5.0 and throws errors like this. java.lang.StringI… Read More

Sending Email from Java Class is very simple.Here is a simple java program to send emails . import javax.mail.*;import javax.mail.internet.InternetAddress;import javax.mail.internet.MimeMes… Read More

In this post i will describe how to create a html document from you rest jersey class , which can be used by web sevices consumers easily . First you need to install raml-for-jax-rs plugin… Read More

This is a simple casper js script to automate your process of downloading webmaster tools reports . Google Webmaster does not provide any api to download the data . This simple casperjs s… Read More

This post describes step by step guide to migrate your svn repository to git repository.First , lets have a look as why git is better than svn .1) GIT is distributed, SVN is not. 2) GIT… Read More

In this short example , i will explain where we can use flatMap function of java stream api . Suppose you have a multi level list where many objects are stored , and you want to convert i… Read More

Mule Runtime 3.6 and later version have deprecated old Http Connector with , new Http Listener Config . Let's take an example to see how we can use it .This example also demonstrates how to… Read More

Every one of us is waiting for a new and clean release of Rails 5 , which not only accepts the SPA(Single Page Application) Implementation easily but also has enhanced the performance and st… Read More

This is a simple example of how to use Google Guice , with Jersey to create JAX-RS web services , which can be deployed to any servlet container like Tomcat , Jboss , GlassFish etc . We will… Read More

Some times Mule app failed to start , throwing weird exception like this : org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'mule'. at org.apache.xerc… Read More

Java 8 has introduced double colon (::) apart from lambda expressions. Let's see how does it work . public class DoubleColonTest { interface MyInterface{ public void interfaceMethod(S… Read More

In this post , i will show how lambdas in java work , with a simple example .Consider the following code snipped using java lambda . package java8Test;import java.io.File;import java.io.File… Read More

Here are the most important commands in git , and their description .git reset –hard origin/master Resets your Local Repo with HEAD git reflogDisplays a walkthrough of git cycle throug… Read More

Recently , i encountered an error with maven build. The pom file which i was using , started failing with failed dependency errors .It was working fine earlier. Here is the error which i wa… Read More

Today we will be discussing How to Commit only a Part of File in Git , Instead of Commiting the whole file , basically useful if you have dev ,prod ,and other environment parameters in same… Read More

This document describes how to connect mobile phones (like Yuphoria,Yureka), which are based on Cyanogenmod OS as Mass Storage/MTP in Linux.This is a solution for ticket : https://jira.cyano… Read More

Some of the most important questions asked in Barclays India And TCS for Ruby On Rails Developer Position , but these questions can be asked in any company which is recruiting ROR developers… Read More

Sample Java Program to Create Index in MongoDB 3 Java Driver . This snipped also contains older code which was used to create index . You just need to create a BasicDBObject with key as a na… Read More

Here is the simple java program to insert data in MongoDB database. version 3.0 API is changed a bit . MongoClient.getDB method is deprecated and MongoClient.getDatabase() is used , which re… Read More

You might get below error while using Commons DBCP , even if you have correct JDBC driver in your classpath. java.lang.UnsupportedOperationException: Java Runtime Environment (JRE) version 1… Read More

Today we will be uploading a file to server using ajax call with the help of Iframe method. There is a Ruby Gem available called remotipart, which handles this kind of situation. Installati… Read More

If you use mule built in C3P0 data connection pool to connect to databse , it throws ClassNotFoundException even if the driver class is present in MULE_HOME/APPS/{YOUR_APP}/lib directory . c… Read More

Java 8 added support for Lambda Expression . So what exactly are Lambda Expressions ?Lambda Expressions are nothing but Anonymous Functions . Anonymous functions are methods which does not h… Read More

Through a development life cycle when it comes to commit our whole day work and stuck in merge conflict without resolved/ No knowledge what went wrong in conflict makes our happiest day a… Read More

CasperJs is a javascript library written for phantomjs which is a headless browser . To install casperjs in windows , first you need to download phantomjs and set its exe file path in you… Read More

What would be the output of the following program ? public class ThreadTest implements Runnable{ private Object obj=new Object(); public static void main(String[] args) { ThreadTest test… Read More

Apache ANT : Apache Ant uses build.xml file to describe build process and it is implemented in java . ANT first version released in 2000 and soon became one of the most popular build tool at… Read More

jQuery MsgBox is a jQuery plugin highly configurable to replace the basic functionality provided by the standard javascript alert(), confirm(), and prompt() functions. BROWSER COMPATILITY: F… Read More

When Your web application is running on HTTPS then you might get an annoying warning like this in Internet Explorer . Internet Explorer will give you warning like this : Do You Want to view… Read More

Problem : Write a program to find whether the string is a palindrome or not. If it is palindrome, return empty string. If it is not, return the minimum length string which should be appende… Read More

This post describes how to handle exceptions in jersey component of mule .We can use ExceptionMappers for converting exception in jersey response . Here is the RestClass which throws a cus… Read More

For generating Barcodes , we can use Barcode4j library , which is opensource and free library . Let's look at some java code to generate barcode as image in java .First of all , enter follo… Read More

NFS mount is used to share a directory between several servers, It saves the disk Space and is Useful for a Infrastructure where a application shares a common directory and is hosted in mult… Read More

This is a simple java program which will search and replace a particular String in ByteBuffer import java.nio.ByteBuffer;import java.nio.CharBuffer;import java.nio.charset.Charset;public cla… Read More

In this blog we will be learning how to use Continuous Integration tools to deploy Projects, Here I will be using Jenkins as CI and Maven as build tool to deploy Spring MVN Based Application… Read More