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GPS Tracker

GPS Tracker. Supervisor: Victor Kulikov. Oded Duek. Aviv Grinblat. Final presentation Spring 2010. Motivation. Business owners often want to advertise their business to people that are located near their businesses.

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GPS Tracker

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  1. GPS Tracker Supervisor: Victor Kulikov Oded Duek Aviv Grinblat Final presentation Spring 2010

  2. Motivation • Business owners often want to advertise their business to people that are located near their businesses. • It would be nice if there was an easy way to check the efficiency of the advertisements. • In order to improve their services, business owners might want to do surveys.

  3. Goals • Gain experience in programming a complex and varied application. • Learn to program in JAVA • Make GUI, work with SQL based database • Use different kind of API’s • Learn to work with Web Service • Use Design Patterns to solve common problems

  4. Technologies • JAVA • Java DB (Derby) • Soap Web Services • Netbeans • API (JXMapKit,JFreeCharts and more)

  5. N-tiers GUI Layer: GUI Displays and receive information related to BLL layer. Business Logic Layer: BLL Business logic layer Controls an application’s functionality by performing detailed processing. DAL Data access layer Data Access Layer: Manages the communication with Database layer. Database Layer: Keeps tables with data neutral and independent from application. Database Derby DB

  6. Application Description • Server side: • Small part of BLL • DAL • Database Comunication: Soap messages using JAX-WS • Client side: • GUI • Most of BLL • Getting maps from OpenStreetMap • Geocoding from Yahoo

  7. Database On Delete Cascade - specifies whether you want rows to be deleted in a child table when corresponding rows are deleted in the parent table

  8. Dal Interface Connection: A connection (session) with a specific database. SQL statements are executed and results are returned within the context of a connection. CreateStatement:Creates a Statement object for sending SQL statements to the database. MAX Function: Returns the largest value of the selected column JOIN Operation: Combines records from two or moretables

  9. BLL Client Side Class Diagram:

  10. BLL Server Side Class Diagram:

  11. BLL Comparable: This interface imposes a total ordering on the objects of each class thatimplements it. This ordering is being performed using compareTo method. • Containers: • TreeSet • List • Set Security:Each bit or character from the password plaintext is encrypted by a XOR operation with a bit or character from a secret key resulting in a cipher text.

  12. BLL Communication with client objects: • Problem: • How the clients get the advertisements and feedbacks? • How to get the positions and feedback answers from clients? Solution:API based on Observer Design Pattern.

  13. BLL Add Event use case:

  14. BLL Web Services: Used to integrate computer applications that are written in different languages and run on different platforms. Web services are language and platform independent because vendors have agreed on common web service standards. • Web Services models fall into two categories: • REST based • SOAP/WSDL-based JAX-WS: The Java API for XML Web Services is the current model for SOAP-based web services in Metro (web services stack).

  15. GUI Map API: JXMapKit - An open source Swing component created by the developers at SwingLabs. • JXMapKit is preconfigured with 2 default providers: • OpenStreetMap • NASA’s Blue Marble satellite images • Customizing the Map: • Re-Centering • Adding Waypointsto a set • Using a custom Waypoint Renderer • Drawing static text • Addingpolygon overlayusing formula:X+latitudeDist∙cos(w∙t) + Y+longitudeDist∙sin(w∙t) • Adding legend image

  16. GUI Charts API: JFreeChart- a free chart library for the Java platform. It is designed for use in applications, applets, servlets and JSP • Creating charts with JFreeChart is a three step process: • create a dataset containing the data to be displayed in the chart. • create a JFreeChart object that will be responsible for drawing the chart. • draw the chart to some output target. GridBagLayout-flexible layout manager that aligns components vertically and horizontally, without requiring that the components be of the same size.

  17. GUI BalloonTip API - Allows adding to swing componentdifferent types of balloons that shows informationWe wrote the text in HTML JOptionPane - makes it easy to pop up a standard dialog box that prompts users for a value or informs them of something JCalendar - JCalendar is a Java date chooser bean for graphically picking a date JClock - A simple clock consists of SpinnerNumberModel components arranged with FlowLayout

  18. Design Patterns • Singleton One instance of a class or one value accessible globally in an application.(Encrypt, ListenerList ) • StateAn object's behavior change is represented by its member classes, which share the same super class. • ObserverOne object changes state, all of its dependents are updated automatically.

  19. SUMMARY Gain experience in programming a complex and varied application GUI BLL Business logic layer DAL Data access layer Database Derby DB

  20. SUMMARY Make GUI, Use different kind of API’s

  21. SUMMARY Work with SQL based database Learn to work with Web Service

  22. SUMMARY Use Design Patterns to solve common problems singleton All in JAVA

  23. Thank You!

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