org.problets.lib.comm.database
Class DataTranslator

java.lang.Object
  org.problets.lib.comm.database.DataTranslator

public class DataTranslator
extends java.lang.Object

read the structure of the queries from a local file and creates the appropriate queries

Author:

Atanas Frengov

Constructor Summary

DataTranslator(java.lang.String structureFilename)
The constructor opens the file that contains the translation instructions

Method Summary

java.util.Vector	getCommands() returns a vector containing strings with commands to insert in each table
static void	main(java.lang.String[] args)
AttributeValue	parseElement(java.lang.String a_element) returns an AttributeValue object containing data from the string argument
DatabaseRecord	parseVectorFromTutor(java.util.Vector vectorFromTutor) Put the data from the vector that is send from the tutor to a DatabaseRecord object
void	printTable() a function that prints the commands vector
static java.util.Vector	readFromLocalFile(java.lang.String path, java.lang.String fileName) This method returns a vector containing the contents of a file included with Jar file.
java.util.Vector	returnStructure() return a vector with the current structure
java.util.HashMap	translate(java.util.Vector vectorFromTutor) Translates the supplied databaseRecord object from the tutor with the translation instructions read from a local file and returns a hash map with all translations
void	trimDataInVector()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataTranslator

public DataTranslator(java.lang.String structureFilename)

The constructor opens the file that contains the translation instructions

Parameters:

structureFilename - the name of the file that contains the translation instructions

Method Detail

returnStructure

public java.util.Vector returnStructure()

return a vector with the current structure

Returns:

a vector with the current structure

getCommands

public java.util.Vector getCommands()

returns a vector containing strings with commands to insert in each table

Parameters:

none -

Returns:

a vector containing strings with commands to insert in each table

translate

public java.util.HashMap translate(java.util.Vector vectorFromTutor)

Translates the supplied databaseRecord object from the tutor with the translation instructions read from a local file and returns a hash map with all translations

Parameters:

vectorFromTutor - the data vector that is supplied by the tutor

Returns:

a HashMap with the translation

readFromLocalFile

public static java.util.Vector readFromLocalFile(java.lang.String path,
                                                 java.lang.String fileName)

This method returns a vector containing the contents of a file included with Jar file. It strips all comments and blank lines from the file.

trimDataInVector

public void trimDataInVector()

parseElement

public AttributeValue parseElement(java.lang.String a_element)

returns an AttributeValue object containing data from the string argument

Parameters:

a_element - a string to be parsed

Returns:

an AttributeValue pair from the parsed string null if no delimiter was found

parseVectorFromTutor

public DatabaseRecord parseVectorFromTutor(java.util.Vector vectorFromTutor)

Put the data from the vector that is send from the tutor to a DatabaseRecord object

Parameters:

vectorFromTutor - the vector that is passed from the tutor

Returns:

a DatabaseRecord object holding all data

printTable

public void printTable()

a function that prints the commands vector

main

public static void main(java.lang.String[] args)