10MCA56 Software Design Laboratory 1RN11MCA01

10MCA56 Software Design Laboratory 1RN11MCA01

Choose Workspace folder

Select Workbench

Set Modeling

Creating a New UML Project

Enter the Project Name and Click Next

Select Blank Model, give Proper name and Click Finish

Created UML Project details displayed on Project Explorer

To Find Pattern Explorer

Search for pattern Select Pattern ExplorerClick OK

Creating Pattern InstanceSelect the required pattern from Pattern Explorer

Drag and drop on model Main screen

Pass the arguments

Create Class DiagramRight click on Model -> Select Add Diagram -> Select Class Diagram

Drag & drop the arguments created for Pattern instance on Class diagram

Pass the required Attributes and Operations

Transformation from UML to JavaGo to Modeling -> Select Transform -> New Configuration

Give a name for Transformation file and select transformation UML to Java V5.0Click Next

Select the UML model to transformClick on Create New Target Container

Give name to Target Java Project and Click Finish

Uncheck the Check box Generate getter and settersClick Finish

Right click on Transformation file and Select Transform UML to Java V5.0

Define the methods in Java classes generated and make it as executable code by adding a class with main() method.Right click on Class with main( ) method Select Run As -> Java Application

Check the Output on Console

Creating Use-case Diagram

Creating Sequence Diagram

Creating Activity Diagram

Creating Component Diagram

Reverse Transformation (Java to UML)Create a Java Project

Give name for Java Project and Click Finish

Right Click on Java project -> Select New -> Select Package

Give the package name and Click Finish

Right click on package Select New -> Select Class

Give name for Class and Click Finish

Define the class created

To create a Class with main() methodRight click on package Select New -> Select Class

Give name for Class, select the Check box public static void main(String[] args) and Click Finish

Define the methods in classes created.To Transform from Java to UMLGo to Modeling -> Select Transform -> New Configuration

Give a name for Transformation file and select transformation Java to UML.

Select Java project as Source and Click on Create New Target Container

Select Standard template and Click Next Select Blank Model and Container folder and Click Finish

Publisher Subscriber design patternContext: A component uses data or information provided by another component. Problem: Changing the internal state of a component may introduce inconsistencies between cooperating components. Two forces associated with this problem are: The components should be loosely coupled. The components that are depends on the information provider are not known a priori. Solution: Implement a Change-Propagation mechanism between the information provider Subject and the components dependent on it observers. Observers can dynamically register or unregister with this mechanism.Whenever the subject changes its state, changes are propagated by invoking a special update ( ) function common to all observers.Pattern Instance

Class diagram

Use Case Diagram

Sequence Diagram

Activity diagram

ImplementationMclass.javapublic class Mclass{public static void main(String[] args) {Furnace fr=new Furnace();CurrentTemp ct=new CurrentTemp();DisplayTemp dt=new DisplayTemp();fr.addObserver(ct);fr.addObserver(dt);fr.setTemp(56);fr.setTemp(6);}}

Furnace.javaimport java.util.Observable;

public class Furnace extends Observable {public int temp;public void setTemp(int a) {temp=a;setChanged();notifyObservers(temp);}}

CurrentTemp.javaimport java.util.Observable;import java.util.Observer;

public class CurrentTemp implements Observer {public void update(Observable o, Object arg) {int t=(Integer)arg;System.out.println("The current temperature is "+t);}}

DisplayTemp.javaimport java.util.Observable;import java.util.Observer;

public class DisplayTemp implements Observer{public void update(Observable o, Object arg) {int t=(Integer)arg;if(t>35)System.out.println("Temperature is High");else if(t