EASY SOFTWARE DEVELOPMENT BY AUTOMATIC CODE GENERATION, BUSINESS LOGIC AND VALIDATION ENGINE INSERTION.

Novateur Publication’s
International Journal of Innovation in Engineering, Research and Technology [IJIERT]
ICITDCEME’15 Conference Proceedings
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EASY SOFTWARE DEVELOPMENT BY AUTOMATIC CODE
GENERATION, BUSINESS LOGIC AND VALIDATION ENGINE
INSERTION.
Mr. Sunil D Rathod
PhD Research Scholar, Computer Engineering Dept.
JJT University, Jhunjhunu, Rajasthan, India Sunil2k_r@yahoo.co.in
ABSTRACT
In today’s fast and progressive world is process optimization become essential in all fields of life and an IT industry
is no exception to this. The Integrated Development Environment (IDE) based software development environments
are popular for easier and faster project development using Drag and Drop (DND) tool box with all essential
controls like text box, labels, buttons, etc. This helps developer to design Graphical User Interface (GUI)or User
Interface(UI) just with mouse click. Though the designing of UI and Code generation as templates is easier using
these tools but none of the existingtoolsare capable of generating complete working code with embedding “Business
Logic” (BL) automatically in code. The vendor specific tools from ORACLE, Microsoft, IBM mainframe and some
similar tools from other giant vendors are used to design and develop the products for analysis and reporting purpose
but these tools need the proprietary DB and vendor specific environment to develop the project. Moreover these
tools generate code without BL and developers later add BL code repeatedly for commonly used operations like
Inset, Update, Delete, Display on the data of Database (DB).Our proposed tool named “Rapid Project Builder”
(RPB) eliminates the time consumed for coding the same BLrepeatedly. The RPB can also perform Automatic Code
Generation (ACG) in specific language like C++, Java, etc of developer’s choice. The tool helps developers to
design the application’s UI with DND along with the specification of fields used in UI form. After adding button
contralto UI with operation choice like add, delete, search or modify, RPB automatically embed code for BL to
these controlling language specified by developer. All operations like ACG, Automatic DB Creation (ADC), table
creation with all DML operations and Validation code insertion, are done using properties stored as XML semantics
in automatically generated XML file by RPB.
KEYWORDS- UI, DND, XML, RPB, ACG, BL, ADC, OFMA, CRM.
INTRODUCTION
Recent trends in Software Industry explore technology which meets dynamic demands ofin software projects with
different stakeholders like client, analyst, developers and project manager focus on cost reduction, efficiency and
reliability of product to be developed at time. Globally accepted standards and tools are devised to make the
Software Development Life Cycle (SDLC) process more generic, platform independent, cost effective and automatic
with respect code generation and transformation of specification into various other technologies[12],[13],[16],[17].
The Unified Modelling Language (UML)specifications focus on design of the software projects using DND and
with forward engineering the designed classifiers like Class diagram, Use Case, State Chart and Sequence
diagrams.UML based tools convert these classifiers to code using forward engineering [1],[2],[5],[9],[10]. For
instance special efforts are taken for transferring Sequence diagrams into code using XMI representation in [19]. An
automatic code generation from given UML classifiers are achieved using these tools but none of the approaches is
able to generate complete language specific code with embedded business logic in it. The code generated for the any
given classifier in UML is just a code template with its structure like class definition, attributes with data type and
blank code template of methods [27].
In the generated code template, BL code is to be explicitly written by developer for operations like Addition,
Change, Insert and Delete (ACID)on date stored in DB tables. The code of BL depends on the constraints
specifications of domain of the project[27],[30],[36].
The front end and back end DB connectivity is another issue to be handled by developer at the time of project
development which can either be done by data connectivity control of the development environment or using code

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explicitly written in development language. Thus the entire SDLCtakes a lot of time in addressing the issues like
code for UI, Code for different control likes text box, command button, radio button, check box,etc. along with
programming different events like mouse click or key press events, DB creation with ODBC connectivity issues and
last is embedding BL in code.
Our tool, Rapid Project Builder(RPB) addresses all the above issues together just by designing the project UI using
DND along with the specifications of different properties of the controls like textbox, buttons, labels, etc.RPBstores
the information given by developer as XML Meta data and automatically generates code, DB with tables, and BL
embedded in the code.
The entire paper organization gives capabilities of RPB. In next section literature review as related work is given;
subsequent chapters cover the architecture of proposed RPB, along with methods for ACG, ADC and automatic
embedding of BL in language specific code along with XML file generation. The XML Meta file generation,ACG,
ADC, automatic BL code generation and validation code creation is main focus of the paper. The works concluded
with some experimental results along with future scope of the RPB tool. The RPB tool is designed and developed
using Java programming language.
RELATED WORK
Since its emergence, many efforts have been put to make software development process as easy and fast as possible
without losing the robustness, efficiency, user-friendliness along with cost effectiveness of software products. The
user of the software has ever changing and dynamic requirement and so it is very much essential to use innovative
methods and methodologies with different paradigm to meet these challenges. Experts also try to make software
product more generic, platform independent, portable, scalable and robust with reduced cost of development.
MDA approach proposed OMG is very generic and is being adopted at large in many industries as standard practice
of product development so as to meet all possible challenges [12],[13],[17]. The process of rapid and simplified
project development with code reusability has already been achieved with the evolution of Object Oriented
Programming (OOP) technologies which is again a part of UML standards [12],[27],[28].
The UML tools like IBM Rational Rose, star UML, and the like have been using evolutionary approaches to
generate the code automatically by using state chart and class diagrams as classifiers.[1][5].
The authors in [3] have extend the functionalities of existing UML tools and developed a new tool called UJECTOR
(UML to Java Executable Code generator) for generation of executable Java code from UML diagrams
automatically. If a set of three UML classifiers namely class diagram, sequence diagrams and activity diagrams are
given as input to the tool; it generates a complete executable Java code automatically. UJECTOR generates Java
class structure from class diagram, method and its flow of control through sequence diagrams, and object
manipulations code by using activity diagrams.
In [7] the authors proposed a system that allows user to specify his/her code specification using an easy-to-
understand, simple-to-write and more or less unchangeable pseudo code specifications. The system checks errors, if
any, in pseudo code and converts the algorithmic specifications into code of specific language like C, Java.
The concrete system, developed in .NET framework for automatic code generation, DB table creation, and some BL
embedding in the code is seen in [23].This system tool is vendor specific can only be used with Microsoft platform.
The giant vendor Microsoft has many language specific tools like VB6.0 or VB/ASP .Net framework which use
DND approach for UI design. These tools generate code templates but no BL code or automatic DB table creation is
possible by just DND[36].
The report generation tool of ORACLE Financial Management Analytics (OFMA)too lags in generating source code
of specific language with BL is embedded in code [33].
The similar features like UI with report generation are available with tools like eclipse Windows Builder, Microsoft
Dynamics Customer Relationship Management (CRM)[34],[35].
Our tool RPB is aimed to reduce the time and cost of product development in design and coding phase (frontend as
well as backend code generation) of Software Development Life Cycle.
First kind of such an idea was proposed in [24],[25],[26] in which the authors have given the concrete frame work of
tool like RPB.
As a first step, this tool is incorporated with the functionalities to develop a concrete prototype for standalone
applications with backend support but in future this tool can be extended with the functionality to develop web
applications.
RPB ARCHITECTURE
The RPB architecture with process flow is as shown in figure fig-1below.

The RPB tool has standard IDE for developer to design and develop the desired application using DND. The tool
provides similar project form design facilities as that of VB .Net or Net beans using which a developer can easily
design UI. The developer can either create a new application from the scratch or open an existing one to customize
it.
Figure 1.
METHODOLOGIES
The methodologies used to design and develop software using RPB with its various components are discussed in this
section. Form Creation Mechanism using DND
Through property window developer specifies various
etc. The properties like data type, size, name,
attributes and corresponding fields for DB table.
properties for each of these controls can be set appropriately. GUI from designer c
achieve this task. Figure fig-3 & fig-4.
Conversion of GUI to XML Meta information
Once the UI is designed, RPB automatically generates XML Meta data file.The UI which is saved as an object is
given to a converter module of RPB. This module extracts proper information from UI object to generate XML file.
The XML file creation is depicted in figure fig
Conversion of XML Meta class to Database creation
DB tables in backend DBMS are created using XML Meta information. SAX parser e
table creation from XML Meta File. This
Table is automatically generated using DML syntax of specific DBMS like MS
CREATE TABLE Customer (Name Text, Age Int, Sex Char(5), Pin Long);
developer creates workspace for project Database with workspace name and .mdb extension is
created.
Figure 2.
CONVERSION OF XML METACLASS TO JAVA CLASS
The RPB automatically creates a JAVA class from the above generated XLM Meta file using Languagelibrary
syntax file which has all the relevant language
XML Meta
File
ISSN No
e RPB tool has standard IDE for developer to design and develop the desired application using DND. The tool
er create a new application from the scratch or open an existing one to customize
Figure 1. RPB Architecture with Flow
using DND The developer creates UI by DND using controls in tool box.
specifies various properties of controls like Label, text field, text area, buttons,
etc. The properties like data type, size, name, fonts set for each of the fields help in creation of CLASS with
attributes and corresponding fields for DB table. Each control has separate property window using which the
properties for each of these controls can be set appropriately. GUI from designer component of RPB is used to
Conversion of GUI to XML Meta information
This module extracts proper information from UI object to generate XML file.
The XML file creation is depicted in figure fig-5.
Conversion of XML Meta class to Database creation
are created using XML Meta information. SAX parser extracts proper information for
File. This extracted information is used in Conversion Module of RPB and a DB
Table is automatically generated using DML syntax of specific DBMS like MS-Access as follows.
CREATE TABLE Customer (Name Text, Age Int, Sex Char(5), Pin Long); Figure fig-2 shows this. When
developer creates workspace for project Database with workspace name and .mdb extension is
Figure 2. XML to DB Table creation process
CONVERSION OF XML METACLASS TO JAVA CLASS
syntax file which has all the relevant language key words, conditional/loop control, class, interfaces, design pattern,
SAX
Parser
Database
Table
Database
Creation
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e RPB tool has standard IDE for developer to design and develop the desired application using DND. The tool
er create a new application from the scratch or open an existing one to customize
using controls in tool box.
properties of controls like Label, text field, text area, buttons,
fonts set for each of the fields help in creation of CLASS with
property window using which the
omponent of RPB is used to
This module extracts proper information from UI object to generate XML file.
xtracts proper information for
extracted information is used in Conversion Module of RPB and a DB
Access as follows.
2 shows this. When
developer creates workspace for project Database with workspace name and .mdb extension is automatically
key words, conditional/loop control, class, interfaces, design pattern,

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and syntax of specific language. Each language has own separate file with all necessary information so as to
generate proper error free code.
The SAX PARSER scans the XML Meta file and parses TAGs defined by RPB application development tool. It
transforms the XLM TAGs into JAVA class definition as follows:
Class Customer
Private String Name;
Private Age;
Private List Sex []={“Male”, Female”};
Private String City;
Private int Pin;
Public Ok_onClick()
Business Logic for saving the fields
In DB table is embedded here.
Public Cancel on Click()
Logic for Cancelation of the action.
The JAVA is the default language RPB supports but developer can specify any OO language like C++ or C#
supported by RPB.
CAPTURING BL FROM UI
RPB dynamically captures the details of the BL to be generated from UI. When developer drags and drops the
button control from standard tool box, the property window of button control helps developer to specify all the
operation specific BLlike ADD, DELETE, SHOW or any other specific operation.
As these properties are stored properly in XML Meta file as depicted in fig-6, RPB BL insertion module will parse
the essential details from XML Meta file and creates the appropriate BL query as per the BL operation so that proper
action is performed by application at run time.
TheRPB BL insertion module will parse the details like the data entered by user at run time, action to be performed
on button click and the table in which the data is to be synchronized. Here data synchronization means performing
operations like INSERT, DELETE, UPDATE, DISPLAY, CANCEL, etc. depending on BL. The module then
generates complete code for operation to be performed on button click as shown below.
For INSERT/ADD operation following BL code is generated by RPB.
"INSERT INTO Customer(Name,Age,Sex,City,Pin) VALUES('"+new String(Name.getText()) +"',"+new
Byte(Age.getText())+",'"+new String(Sex.getText()) +"','"+new String(City.getText()) +"',"+new
Long(Pin.getText())+")";
The values entered by user in text field are converted into the DB format of underlying DB automatically.
VALIDATIN CODE INSERSION
This component performs automatic form validation. Validation engine makes validation of the text fields, text area,
etc. of the frontend UI forms and the code generated for this is automatically inserted on event specific controls.
The proposed tool also provides facility to even customize the code and make the application redesigned as per the
new project requirements.
EXPERIMANTAL RESULTS
The implementation of some of the modules of RPB is as shown in figures below.
Figure 3. RPB Editor Environment with Form Design, Property window& Tool box

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Figure 4. Customer Form desing using RPB editor
The Source code and XML Meta information generated by RPB can even be saved separately in desired work space.
These files can be used at any point of time by developer for further use. More specifically the source code file is file
containing complete working code which can be executed on any machine having proper compiler of corresponding
language.
Figure 5. XML Meta data of Customer Form
CONCLUSION
The existing research done by various researchers and the tools developed by various global vendors like IBM,
ORACLE, and Microsoft are limited to the design of UI and generation of code template in some vendor specific
language and in platform dependent manner. The work presented in this paper is an innovation towards making the
software project development simpler, efficient, and robust with low cost through our open source tool RPB.
The RPB generates code automatically in various languages like Java, C++, C#. If more language libraries are added
in RPB, more will be the language support by RPB. At initial level DB support is given only for MS-Access and
MySQL.The sole efforts of this research are to reduce software development cost thus contributing towards the
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<FORM>
<FORM_NAME>Customer Registration Form</FORM_NAME>
<CLASS>
<CLASS_NAME>Customer</CLASS_NAME>
<TEXTFIELD>
<TEXTFIELD_NAME>Name</TEXTFIELD_NAME>
<TEXTFIELD_DATATYPE>STRING</TEXTFIELD_DATATYPE>
<TEXTFIELD_DATASIZE>255BYTE</TEXTFIELD_DATASIZE>
</TEXTFIELD>
<TEXTFIELD>
<TEXTFIELD_NAME>Age</TEXTFIELD_NAME>
<TEXTFIELD_DATATYPE>INTEGER</TEXTFIELD_DATATYPE>
</TEXTFIELD>
<COMBOBOX>
<COMBOBOX_NAME>Sex</COMBOBOX_NAME>
<COMBOBOX_ITEM>Male Female</COMBOBOX_ITEM>
<COMBOBOX_ITEM>TestItem</COMBOBOX_ITEM>
<COMBOBOX_DATATYPE>STRING</COMBOBOX_DATATYPE>
</COMBOBOX>
<TEXTFIELD>
<TEXTFIELD_NAME>City</TEXTFIELD_NAME>
<TEXTFIELD_DATATYPE>STRING</TEXTFIELD_DATATYPE>
</TEXTFIELD>
<TEXTFIELD>
<TEXTFIELD_NAME>Pin</TEXTFIELD_NAME>
<TEXTFIELD_DATATYPE>INTEGER</TEXTFIELD_DATATYPE>
</TEXTFIELD>
<BUTTON>
<BUTTON_NAME>Cancel</BUTTON_NAME>
<BUTTON_MNEMONIC>B</BUTTON_MNEMONIC>
<BUTTON_OPERATION>Add</BUTTON_OPERATION>
</BUTTON>
<BUTTON>
<BUTTON_NAME>OK</BUTTON_NAME>
<BUTTON_MNEMONIC>B</BUTTON_MNEMONIC>
<BUTTON_OPERATION>Add</BUTTON_OPERATION>
</BUTTON>
</CLASS>
</FORM>

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simplification of some of the processes of SDLC.The scope of RPB can be extended for development of web
application as a future scope.
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