14SCN26Distributed Computing LaboratoryVISVESVARAYA
TECHNOLOGICAL UNIVERSITYBELAGAVI - 590 018
Report On
Distributed Computing Laboratory (14SCN26)
Submitted in partial fulfillment of the requirements for the
award of the degree of Master of Technology in Computer Network
Engineering of Visvesvaraya Technological University, Belagavi
Submitted byYour NameUSN:
2014-15
VISVESVARAYA TECHNOLOGICAL UNIVERSITYBELAGAVI - 590 018
CERTIFICATE
Certified that the Distributed Computing Laboratory work
(14SCN26) has been successfully completed by Your name bearing USN:
a bonafide student of College Institute of Technology in partial
fulfillment of the requirements for the second semester in Master
of Technology in Computer Network Engineering of Visvesvaraya
Technological University, Belagavi during academic year 2014-2015.
It is certified that all corrections/suggestions indicated for
internal assessment have been incorporated in the report deposited
in the departmental library. The laboratory report has been
approved as it satisfies the academic requirements in respect of
laboratory work for the said degree.
Examiners: 1) 2) ACKNOWLEDGEMENT
I take the immense pleasure in acknowledging the people
responsible for guiding and encouraging towards the successful
completion of the Distributed Computing Lab work. I would like to
profoundly thank Management of RNS Institute of Technology for
providing such a healthy environment to carry out this laboratory.
I would like to thank our beloved Director Dr. H. N. Shivashankar
for his support towards carrying out this laboratory. I would like
to express my thanks to our Principal Dr. M. K. Venkatesha for his
encouragement that motivated me to carry out this laboratory.I wish
to express my gratitude and sincere thanks to Dr. M. V. Sudhamani,
Professor and Head of the Department, Information Science and
Engineering, for providing a good working environment and for her
constant support and encouragement. I would like to thank staff
in-charge Mr. R. Rajkumar, Assistant Professor, Department of
Information Science and Engineering for his constant support and
guidance to carry out the Distributed Computing Laboratory and also
all other teaching and non-teaching staffs of Information Science
& Engineering who have directly or indirectly helped me to
carry out this laboratory.And lastly I would hereby acknowledge and
thank my parents who have been a source of inspiration and also
instrumental in carrying out this laboratory.
MohammadParvez A. HalliUSN: 1RN14SCN06
Experiments1. Design and implement client server application
using RMI (Remote Method Invocation) to invoke a service to
calculate the income tax.2. Design and implement EJB (Entity Java
Beans) session bean business logic to calculate income tax and
invoke the service using stub, i.e., client side proxy object.3.
Design and implement an EJB entity bean to persist the client
submitted data into an enterprise information system.4. Design and
implement an offline database communication system using JMS (Java
Message Service) to service the client request.5. Design and
implement the client code to call the Micro soft service like free
service from UDDI (Universal Description Discovery Protocol).6.
Design and implement business logic and bind it as service using
SOAP (Simple Object Access Protocol), also implement client to call
service.
Program 1: Design and implement client server application using
RMI (Remote Method Invocation) to invoke a service to calculate the
income tax.
Procedure:Step1: Open the Notepad The first file
TaxServerIntf.java defines the remote interface: it includes one
method that accepts one arguemnt and returns their tax. Write this
below code in the file. import java.rmi.*; public interface
TaxServerIntf extends Remote { double add(double d1) throws
RemoteException; } The second source file TaxServerImpl.java
implements the remote interface. Write this below code in the
file.import java.rmi.*;import java.rmi.server.*;public class
TaxServerImpl extends UnicastRemoteObject implements TaxServerIntf
{ public TaxServerImpl() throws RemoteException { } public double
Tax(double d1) throws RemoteException { double it;
it=0;if(d1250000){ it=d1-250000; it=it*0.1;}else if(d1>500000
&& d1 new project -> java EE -> enterprise
application -> click on next -> give the project name (Ex:
enterpriseapplication1) -> next ->finish.
Enterpriseapplication1 tag is appearing in the right side of the
net beans pop up window.Step 2: Right click on the
enterpriseapplication1. War -> right click -> new -> jsp
-> give File Name as (for Ex: taxjsp) -> FinishTaxjsp.jsp
program page is opened and then write a below xml program within
the body of the program
Step3: Right Click on enterpriseapplication1.ejb -> new ->
other -> enterprise java beans -> session bean -> next
-> give the ejb name as (ex: taxbean) and give the package name
as session bean -> stateless check box is defaultly selected and
click on local check box -> finish.taxbean.java program page is
appears and move the cursor inside the public class tax implements
taxLocal { -> right click -> insert code -> add business
method.Add business method window is opened.In name filed type: tax
-> click on browser -> find type window is appear -> in
the type name field give: double -> and select Double
(java.lang) -> ok -> click on ADD -> write parameters as:
a -> type: double -> ok.Write a below program: public Double
tax(double a) { double t=0; if (a>0 && a250000
&& a500000 && a1000000) t=(a-1000000)*0.3+125000;
return t; }Step 4: Right click on enterpriseapplication1.war ->
new -> servlet -> give class name as: (taxservlet) and
package as: (sessionbeans) -> next -> select the add
information to deployment descriptor (web.xml) check box ->
finish.The taxservlet.java program page is appears. Right click
inside public class taxservlet extends HttpServlet{ -> right
click -> insert code -> double click on call enterprise bean
-> call enterprise bean is appears -> extend the
enterpriseapplication1.ejb (by click on + symbol) -> click on
taxbean -> OK.In taxservlet.java program add the write following
code inside the body:double
a=Double.parseDouble.(request.getParameter(t1));Out.println(tax=
+taxbean.tax(a) + );Step 5: Right click on enterpriseapplication1
click on deploy click on runWeb page is opened and select the URL
and right click the right arrow in the keyboard, cursor is moved at
the end of URL and type taxjsp.jsp. The output is shown.
Output:
Program 3: Design and implement an EJB entity bean to persist
the client submitted data into an enterprise information
system.Procedure:Step 1: Open NetBeans IDE choose project Select
New ChooseJavaEE Select Enterprise application.Step 2: Give a name
to the project and finish (ex: name test).Step 3: Go to Services
Choose Databases and select jdbc:desty:// Click connects.Step 4:
Start the Glassfish server.Step 5: From the ejb module (eg:
test-ejb),create an entity class. Give itService as a class name
and package is persist. Check create persistence unit, click next,
and choose jdbc/sample for the data source finish.Step 6: The
following file is opened. After declaring name and salary highlight
these two lines Right click Insert code Choose Getter and Setter.
Change the generated value to IDENTITY from Auto and tick the
encapsulate option.itService (program)package persist;import
java.io.Serializable;import javax.persistence.Entity;import
javax.persistence.GeneratedValue;import
javax.persistence.GenerationType;import
javax.persistence.Id;@Entitypublic class itService implements
Serializable { private static final long serialVersionUID = 1L; @Id
@GeneratedValue(strategy = GenerationType.IDENTITY) private Long
id; private String name; private int salary; public Long getId() {
return id; } public void setId(Long id) { this.id = id; } @Override
public int hashCode() { int hash = 0; hash += (id != null ?
id.hashCode() : 0); return hash; } @Override public boolean
equals(Object object) { // TODO: Warning - this method won't work
in the case the id fields are not set if (!(object instanceof
itService)) { return false; } itService other = (itService) object;
if ((this.id == null && other.id != null) || (this.id !=
null && !this.id.equals(other.id))) { return false; }
return true; } @Override public String toString() { return
"persist.itService[ id=" + id + " ]"; } public String getName() {
return name; } public void setName(String name) { this.name = name;
} public int getSalary() { return salary; } public void
setSalary(int salary) { this.salary = salary; } public double
calculateTax(){ double t=0;
if(this.salary>=0&&this.salary250000&&this.salary500000&&this.salary1000000)
t=(this.salary-1000000)*0.3+125000; return t; }} Step 7: Select New
option EJB Session Bean for entity class Select and Add all the
classes Next Choose Local finish.Step 8: The itService facade is
created.Step 9: Select test-war index. jsp index.jsp (program)
Tax calculation name salary TODO write content
Step 10: test-war New Servlet package name is p1 , within public
class Right click Insert code call enterprise bean ok (paste the
code of Servlet. Java)Servlet.java (program) package p1;import
java.io.IOException;import java.io.PrintWriter;import
javax.ejb.EJB;import javax.servlet.ServletException;import
javax.servlet.annotation.WebServlet;import
javax.servlet.http.HttpServlet;import
javax.servlet.http.HttpServletRequest;import
javax.servlet.http.HttpServletResponse;import
persist.itService;import
persist.itServiceFacadeLocal;@WebServlet(name = "Servlet",
urlPatterns = {"/Servlet"})public class Servlet extends HttpServlet
{ @EJB private itServiceFacadeLocal itServiceFacade; protected void
processRequest(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8"); itService obj=
new itService(); obj.setName(request.getParameter("name")); String
name= request.getParameter("name");
obj.setSalary(Integer.parseInt(request.getParameter("salary")));
itServiceFacade.create(obj); try (PrintWriter out =
response.getWriter()) { out.println(""); out.println("");
out.println(""); out.println("Tax calculation"); out.println("");
out.println(""); out.println("congrats user " +
request.getParameter("name") + " is created successfully");
out.println("your salary is " + request.getParameter("salary") + "
"); out.println("tax is " + obj.calculateTax() + "");
out.println(""); out.println(""); } } @Override protected void
doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { processRequest(request,
response); } @Override protected void doPost(HttpServletRequest
request, HttpServletResponse response) throws ServletException,
IOException { processRequest(request, response); } @Override public
String getServletInfo() { return "Short description"; }//
}Output:
Program 4: Design and implement an offline database
communication system using JMS (Java Message Service) to service
the client request.Procedure:Step 1: In the services section, go to
server section in that start glassfish server. Then go view domain
admin console.Step 2: In admin console click on jms resources go to
connection factories, click new and name the JNDI name
[jms/tConnection Factory] and set the resource type as
[javax.jms.ConnectionFactory].Step 3: Click on destination resource
name the JNDI name [jms/tQueue] and set the physical destination
name tQueue and set the resource type as java.jms.Queue and click
ok.Step 4: Open the new project in Net Beans.Step 5: Go for Java EE
in that enterprise application and name the project as jms and
click next to finish.Step 6: Right click on jms.ejb and select
message driven bean and name it as TMDB and name the package as
mdbs. Set the server destination as jms/tQueue and click next to
finish.Step 7: Write the below codepackage mdbs;import
javax.annotation.Resource;import
javax.ejb.ActivationConfigProperty;import
javax.ejb.MessageDriven;import
javax.ejb.MessageDrivenContext;import javax.jms.JMSException;import
javax.jms.Message;import javax.jms.MessageListener;import
javax.jms.TextMessage;@MessageDriven(activationConfig = {
@ActivationConfigProperty(propertyName = "destinationLookup",
propertyValue = "jms/tQueue"),
@ActivationConfigProperty(propertyName = "destinationType",
propertyValue = "javax.jms.Queue")} public class TMDB implements
MessageListener { public TMDB() { } @Resource private
MessageDrivenContext mdc; @Override public void onMessage(Message
message) { TextMessage msg = null; try { if (message instanceof
TextMessage) { msg = (TextMessage) message; System.out.println("A
Message received in TMDB: " + msg.getText()); } else {
System.out.println("Message of wrong type: "
+message.getClass().getName()); } } catch (JMSException e) {
e.printStackTrace(); mdc.setRollbackOnly(); } catch (Throwable te)
{ te.printStackTrace(); } } }Step 8: Right click on jms.war and go
to new to get jsp. Name the jsp as newjsp and click finish and add
the below lines.
=0 && incomeAmount250000 && incomeAmount500000
&& incomeAmount1000000)
tax=(incomeAmount-1000000)*0.3+125000; return tax; }}
Step 7: Deploy the server program.Step 8: Click on Web Service,
Right click on SoapWebService and click on Test Web Service.Step 9:
Server program has been done.Output :
SOAP Client PartStep 1: Open New Project from file menu.Choose
JavaEE from the categories tab and select EJB module from the
Project and click Next.Step 2: Give Project Name and click
Next.Step 3: Select the server and click Finish.Step 4:From the
source package folder right click and select Web Service
Client.Step5: Enter the WebService name and enter package name as
com.soappackageclient and enter finish.Step 6: Right Click on
source package and select new, in that select Entity Class.Step
7:Give the class name and package as com.soappackageclient ,then
Click next.Step 8: Select data source as jdbc/sample and finish.
Step 9: Write the client program.SOAP Client Program:package
com.soappackageclient;import java.io.Serializable;import
java.util.Scanner;import javax.persistence.Entity;import
javax.persistence.GeneratedValue;import
javax.persistence.GenerationType;import
javax.persistence.Id;@Entitypublic class EjbSoapClient implements
Serializable { @Id private Long id; static class TaxInformation{
String name; String income; } /*static TaxInformation
getInformationFromConsole(){ Scanner scanIn=new Scanner(System.in);
System.out.println("enter your full name"); String
name=scanIn.nextLine(); System.out.println("enter your tax");
String income=scanIn.nextLine(); System.out.println();
scanIn.close(); return new TaxInformation(name,income); }*/ public
static void main(String[] args){ Scanner scanIn=new
Scanner(System.in); System.out.println("enter your full name");
String name=scanIn.nextLine(); System.out.println("enter your
tax"); String income=scanIn.nextLine(); //TaxInformation
info=getInformationFromConsole(); double tax=calculateTax(name,
income); System.out.println("your tax"+tax); } private static
double calculateTax(String name, String income) {
com.soappackageclient.SoapWebService_Service service1=new
com.soappackageclient.SoapWebService_Service();
System.out.println("webservice client seeking information"); double
d=Double.parseDouble(income); double
data=service1.getSoapWebServicePort().calcualteIncomeTax(d);
System.out.println("webserviceclient receving infromation"+data);
return data; } public Long getId() { return id; } public void
setId(Long id) { this.id = id; } }Step 11: Build the Program.Step
12:Run the jsp file EjbSoapClient.jsp.Output :Please enter the
name: ABCEnter Income: 789456Tax: 82891.2
M.Tech in CNE 2014-1529
