Tuesday, July 23, 2013

Hibernate SessionFactory buildSessionFactory deprecated fix

Fix for Hibernate SessionFactory buildSessionFactory deprecation as of Hibernate 4.0 

private static SessionFactory sessionFactory;
private static ServiceRegistry serviceRegistry;

private static SessionFactory configureSessionFactory() throws HibernateException {
   Configuration configuration = new Configuration();
   serviceRegistry = new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry();        
   sessionFactory = configuration.buildSessionFactory(serviceRegistry);
   return sessionFactory;

Generic JDBC Program for Derby

This is a simple JDBC Program for Derby database. No standards followed, you can see that connection is not closed, statement is not cleared.

Can be used to check database connectivity.

SQL Queries
create table test (id integer, name varchar(10), age integer, address varchar(30));

insert into test values (1, 'test1', 20, '80 Absolute Avenue');
insert into test values (2, 'test2', 30, '90 Absolute Avenue');

select * from test

package com.hibernate.demo;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class GenericJDBC {

public static void main(String[] args) {
// TODO Auto-generated method stub
String url ="jdbc:derby://localhost:1527/sample;create=true";

Connection conn;



conn = DriverManager.getConnection(url, "user", "user");

Statement st = conn.createStatement();

ResultSet rs = st.executeQuery("select * from test");

+" " + rs.getString(2) +
" " + rs.getInt(3)+ " "+

}catch(Exception e)




Wednesday, July 17, 2013

ANT Weblogic WebApp Sample File

This article contains the Weblogic Web Application Ant Sample deployment script.

Very useful for configuration and deployment.

<project name="AppBuilder" default="deploy" basedir="."> 
        <property file="build.properties"/> 
Tasks to be done 
1. clean 
2. init 
3. compile 
4. copy 
5. war 
        <path id="classpath"> 
                <!--<fileset dir="${lib.dir}" includes="*.jar"/>--> 
                <fileset dir="common" includes="*.jar"/> 

        <target name="clean"> 
                <echo>Cleaning the ${build.dir} and ${dist.dir}</echo> 
                <delete dir="${build.dir}"/> 
                <delete dir="${dist.dir}"/> 
        <target name="init" depends="clean"> 
                <echo>Creating the required directories</echo> 
                <mkdir dir="${dist.dir}"/> 
                <mkdir dir="${build.dir}\WEB-INF\classes"/>                 
                <mkdir dir="${build.dir}\WEB-INF\lib"/> 

        <target name="compile" depends="init"> 
                <echo>Compile the source files</echo> 
                <javac srcdir="${src.dir}" destdir="${build.dir}\WEB-INF\classes"> 
                        <classpath refid="classpath"/> 
        <target name="copy" depends="compile"> 
                <copy todir="${build.dir}"> 
                        <fileset dir="${web.content}"/> 
                <copy todir="${build.dir}/WEB-INF/classes"> 
                        <fileset dir="${src.dir}" includes="**/*.properties, **/*.xml, **/*.wsdl"/> 

        <target name="war" depends="copy"> 
                <echo>Building the war file</echo> 
                <war destfile="${dist.dir}\${project.name}.war" webxml="${build.dir}\WEB-INF\web.xml"> 
                        <fileset dir="${build.dir}"/> 

        <taskdef name="wldeploy" classname="weblogic.ant.taskdefs.management.WLDeploy"> 
          <pathelement location="common/weblogic.jar"/> 

        <target name="deploy"> 
           <wldeploy action="deploy" 
                  source="dist/SMDBWebservice.war" name="SMDBWebservice" 
                  user="weblogic" password="weblogic" verbose="true" adminurl="t3://localhost:7001" 
                  debug="true" targets="AdminServer"/> 

        <target name="undeploy"> 
           <wldeploy action="undeploy" name="SMDBWebservice" 
                  user="weblogic" password="weblogic" verbose="true" adminurl="t3://localhost:7001" 
                  debug="true" targets="AdminServer"/> 

        <target name="redeploy"> 
           <wldeploy action="redeploy" 
                  source="dist/SMDBWebservice.war" name="SMDBWebservice" 
                  user="weblogic" password="weblogic" verbose="true" 
                  debug="true" targets="AdminServer"> 
                 <!--<files file="index.jsp"/>--> 

        <taskdef name="wlconfig" classname="weblogic.ant.taskdefs.management.WLConfig"> 
          <pathelement location="common/weblogic.jar"/> 

        <taskdef name="wlserver" classname="weblogic.ant.taskdefs.management.WLServer"> 
          <pathelement location="common/weblogic.jar"/> 
          <pathelement location="common/ant-weblogic.jar"/> 

<target name="JDBCPool"> 
                <wlconfig url="t3://localhost:7001" username="weblogic" password="weblogic"> 
                        <query domain="base_domain" type="Server" name="AdminServer"  property="server"/> 
                <create type="JDBCConnectionPool" 
                         <set attribute="CapacityIncrement" value="1"/>       
                         <set attribute="DriverName"         
                         <set attribute="InitialCapacity" value="1"/>       
                         <set attribute="MaxCapacity" value="10"/>       
                         <set attribute="Password" value="smdbuat"/>       
                         <set attribute="Properties" value="user=dsmdd1d;SecurityMechanism=EncryptedUIDPassword;databaseName=DPSMSSMD;serverName=;batchPerformanceWorkaround=true;portNumber=3600;"/>       
                         <set attribute="RefreshMinutes" value="0"/>       
                         <set attribute="ShrinkPeriodMinutes" value="15"/>       
                         <set attribute="ShrinkingEnabled" value="true"/>       
                         <set attribute="TestConnectionsOnRelease" value="false"/>       
                         <set attribute="TestConnectionsOnReserve" value="false"/>       
                         <set attribute="URL" value="jdbc:db2://"/>       
                         <set attribute="Targets" value="${server}"/>   

                 <create type="JDBCTxDataSource" name="CMSDataSource"> 
                        <set attribute="JNDIName" value="JDBCIBM2"/> 
                        <set attribute="PoolName" value="CMSPool"/> 
                        <set attribute="Targets" value="${server}"/> 


Hello World with Apache Ant

Apache Ant (Another Neat Tool) is a Java library and Command line utility useful for automating batch code build process.

For example, let say there is Java Class file HelloWorld.java   you need to compile, jar, move and run. In command you will perform the following activities

To Compile 

javac HelloWorld.java

To Create the jar file 

jar -cvf HelloWorld.jar HelloWorld.class


jar -cvf HelloWorld.jar HelloWorld.class jar -cvf HelloWorld.jar HelloWorld.java

To Move the program 

move HelloWorld.jar HelloWorld1.jar

To run the program

java -cp HelloWorld.jar HelloWorld

Executing all the above steps is ok for one time, lets say you have to do 100 times in a month. This is troublesome and can be automated.

Lets see how this can be automated

Step 1: Download the Apache Ant Latest Stable Version


Step 2:  Extract the Zip file

Step 3:  Go to Environment Variables

Step 4:  Create variable ANT_HOME 

Step 5: Add ANT_HOME\bin in the path 

Step 6:  Open Command prompt and execute the command ant -version

Step 7:  Create the build.xml  

1. target element with name attribute 

<target name="clean"> 

Create target for each of your activities example, clean, compile, move, jar, execute etc., 

2.  Echo Command 

    <echo>Cleaning the directories</echo> 

The echo command is useful while running the ant, it show which step it is currently in. Basically it is just print command.

3. Depends Attribute

        <target name="init" depends="clean"> 

Depends is a very useful command which will execute the depends target before executing the current target. It is like parent child relationship.

4. Console Commands

                <javac srcdir="${currentfolder}\src" destdir="${currentfolder}\classes"> 
                        <classpath refid="classpath"/> 

For most of the generic commands you have Ant Task defined, tasks such as Javac, Jar, War etc., 

5.  Project Root Element and Attributes

<project name="HelloWorld" default="execute" basedir="."> 

The project element defines the project name the default target it should execute and the base directory from where it should run. 

Sample build.xml file as below,

<project name="HelloWorld" default="execute" basedir="."> 
        <!-- <property file="build.properties"/> -->
<!-- Tasks to be done 1. clean  2. init  3. compile  4. jar 5. move 6.execute --> 
<property name="currentfolder" location="C:\Temp"/>
        <path id="classpath"> 
                <!--<fileset dir="${lib.dir}" includes="*.jar"/>--> 
<target name="clean"> 
                <echo>Cleaning the ${build.dir} and ${dist.dir}</echo> 
                <delete dir="${currentfolder}\classes"/> 
                <delete dir="${currentfolder}\lib"/> 
        <target name="init" depends="clean"> 
                <echo>Creating the required directories</echo> 
                <mkdir dir="${currentfolder}\classes"/> 
                <mkdir dir="${currentfolder}\lib"/> 

        <target name="compile" depends="init"> 
                <echo>Compile the source files</echo> 
                <javac srcdir="${currentfolder}\src" destdir="${currentfolder}\classes"> 
                        <classpath refid="classpath"/> 

<target name="jar" depends="compile">
<echo>Creating the jar file</echo> 
<jar jarfile="${currentfolder}\lib\HelloWorld.jar" basedir="${currentfolder}\classes"/>
        <target name="move" depends="jar"> 
<echo>Moving the HelloWorld.jar file</echo> 
<move file="${currentfolder}\lib\HelloWorld.jar" tofile="${currentfolder}\lib\HelloWorld1.jar"/>
        <target name="execute" depends="move"> 
                <echo>Executing Hello World</echo> 
<java  fork="true"
<arg value="-h"/>
  <pathelement location="${currentfolder}\lib\HelloWorld1.jar"/>
  <pathelement path="${java.class.path}"/>

Step 8:  Go to Command and run ant where you have the build.xml

This is just tip of an Ice Berg, you can perform lot of activities like deploying code to the server, creating war files, create ear files, creating stubs, skeletons, ftp etc., As long you can perform some operation in command line you can perform the same using ant but in a sequence. 

Tuesday, April 30, 2013

ADB is Not Recognized as an internal or external command Fix

ADB is Not Recognized as an internal or external command Fix

Some of you are facing problems with Path, because of that you will see the error as below. Even though it is basic lot of people asking this same question. Hence posting this tutorial to fix this error.

In Windows --> Click Start --> Run --> cmd

When you run adb in the command prompt you will see an error as below

Microsoft Windows [Version 6.2.9200]
(c) 2012 Microsoft Corporation. All rights reserved.

'adb' is not recognized as an internal or external command,
operable program or batch file.

To fix this error you need the Android SDK if you don't have it please follow the steps below,

Open the browser and navigate to http://developer.android.com/index.html

Click the Get the SDK as shown in the above image

Click Download the SDK as shown in the above image

Check the checkbox for the license agreement, Select 32 or 64 bit based on your operating systtem.
Click the download SDK link.

Wait patiently until the download is complete.

My machine is a 64 bit Windows, hence the file downloaded is adt-bundle-windows-x86_64-20130219.zip

The zip file contains the following folders eclipse & sdk.

I have extracted to the following location in my machine

Hence i have the following in the path 



You can see that adb.exe is in the location C:\Users\MOHAMMED\Downloads\adt-bundle-windows-x86_64\sdk\platform-tools

Execute the following commands in the command prompt and run adb it will be recognized now.

set ANDROID_PLATFORM_TOOLS="C:\Users\MOHAMMED\Downloads\adt-bundle-windows-x86_64\sdk\platform-tools"

set ANDROID_TOOLS="C:\Users\MOHAMMED\Downloads\adt-bundle-windows-x86_64\sdk\tools"


To Fix it permanently set in the environment variable 

Right Click My Computer --> Click Properties 

Click Advanced System Settings 

Click Environment Variables

Click New  as below, 


Variable Value: C:\Users\MOHAMMED\Downloads\adt-bundle-windows-x86_64\sdk\platform-tools

Variable name: ANDROID_TOOLS

Variable Value: C:\Users\MOHAMMED\Downloads\adt-bundle-windows-x86_64\sdk\tools

Edit the Path variable if it exist, else create a new variable Path 

Variable name: Path


adb should be working on command prompt and 'adb' is not recognized as an internal or external command,
operable program or batch file is resolved now.

Friday, March 15, 2013

Enabling Developer Options in Android 4.2.1 for Galaxy Nexus or Nexus 7

Enabling Developer Options in Android 4.2.1 for Galaxy Nexus or Nexus 7

In Android 4.2.1 the developer options in the Galaxy Nexus and Nexus 7 will not be visible by default as in the below image.

The following are the steps to enable the developer options for Galaxy Nexus or Nexus 7 for Android 4.2.1

Step1:  Click on the View All Apps Dashboard

Step2:  Click on the Settings 

Step3: Click on About Phone 

Step4: Click on the Build number for 7 Times (Tap on the Build number for 7 Times)

Step5: Congrats you will see a message as below, (You are now a developer!)

Step6: You can see the developer options in the settings screen as below