tppt.db
Class GlobalData

java.lang.Object
  |
  +--tppt.db.GlobalData

public class GlobalData

extends java.lang.Object

This class stores all the global variables, constants and methods that are needed for an experiment.

Author:

Helen Yi Ren, Last modified by jodie Change list -- The DB realted setting read from the server.xml and the file is located in the root of jar file.

Field Summary

static java.lang.String	accntName The usre account.
static java.lang.String	accntPasswd The user password.
static java.util.Vector	allParaFields a Vector to store all the Parameter Names.
static java.lang.String	argDir The path of argument files.
static java.lang.String	argFileExt The extension of argument file.
static java.util.Vector	argumentFileNames Deprecated. this variable is useless.
static java.lang.String	chosenDBMS The chosen DBMS by user.
static java.lang.String	dbDriver The jdbc driver string
static java.lang.String	dbInitFile The path if user database initialization file.
static java.util.Vector	DBMS For the multi-database support.
static java.lang.String	dbName The name of DBMS
static java.lang.String	dbSchemaFile The path of user database schema file.
static java.util.HashMap	dbSettingMap Stored the DB setting reading from server.xml in the hastable.
static java.lang.String	dbURL The jdbc url
static java.util.Vector	Deadlocknumoftrans a array to store number of deadlocks for each transaction type
static double	DeadLockTime the accumulated response time in of deadlock transactions.
static int	defaultIsoLevel The defualt isolation level of all transactions, which is Connection.TRANSACTION_SERIALIZABLE.
static int	EachDeadLock the counter of deadlocks for each transaction
static int	executeTime The maximum time a experiemnt could last in seconds.
static int	expLengthLimit the max execution time, which is 60 seconds.
static javax.swing.JFileChooser	globalFC use a global filechooser to keep the current filepath need to find a better way to do this.
static boolean	isFromHome Whether connected from home is checked.
static boolean	isMultiUserMode This flag indeciate whether multi-user mode is provided.
static double	LogicFailTime the accumulated response time in all logic fail transactions.
static int	maxrows the number of max row per page
static java.lang.String[]	modes The String array of the users modes.
static java.lang.String	MULIT_USER_MODE
static int	MyFavoriteLineLength default length limit for a line when displaying user query on the query result frame, see checkDBreportFrame.java
static int	NumOfDeadLock The number of deadlock occurs in all transactions.
static int	NumOfLogicFail The number of logic fails occurs in all transactions.
static int	numOfTerminals The number of terminals user asks to run in a experiment.
static java.lang.String	protoFile The path of prototype file.
static java.lang.String	proxy Stored the proxy string
static double	responseTime the total response time (in milliseconds ) of sucessful transactions in all the simulating terminals.
static java.lang.String	scriptDir The path of script files.
static java.lang.String	scriptFileExt The extension of script file.
private static java.lang.String	serverFileURL Stored the url for the server.xml file.
static java.lang.String	serverNamesFile The defination of name and jdbc url for multipal servers.
static java.util.Vector	sessKeys a Vector to store the Session Keywords
static java.lang.String	SINGLE_USER_MODE
static java.lang.String	singleAccntName The user account for the single user mode.
static java.lang.String	singleAccntPasswd The passward for the single user mode.
static java.lang.String	sourceDir The path of source files.
static java.lang.String	sourceFileExt The extension of the source files.
static java.lang.String	SyncSPFileName The file coontains the stored procedure for synchronization
static java.util.Vector	termKeys a Vectoe to store the Terminal Keywords
static int	thinkTime The interval of each transaction in seconds.
static java.util.Vector	transactions a Vector to store the Transactions.
static java.lang.String	transClassSuffix The suffix of the transaction class -"Class" String.
static int	transCounter the total number of sucessful transactions in all the simulating terminals.
static long	transEndTime The most late transaction end time out of all transactions.
static long	transStartTime The earliest transaction start time out of all transactions.
static int	TSLimit Maximum execution Limit(in sec) an experiment could hold the lock of the Sync table in the sigle user mode.

Constructor Summary

GlobalData()

Method Summary

static boolean	argFilesExist() Check whether the Argument Files Directory provided by user contains all the argument files needed.
static void	cleanRT() Clean up performance measurement variables.
static void	clearInput() The method will clear all the user input fields.
static void	discardAllData() To discard all the user input data or system variables.
static boolean	enoughArgs() Check if terminal keys' argument files have enough data for all terminals.
private static void	getElementValueByName(org.w3c.dom.Node parent, int count) Get the elemnt value by the name of element.
static void	main(java.lang.String[] arg)
private static void	printGlobalData()
static boolean	resourceFilesExist() Checks whether all files or directories provided by user exist or not.
static boolean	scriptFilesExist() Checks whether the Script Files Directory provided by user contains all the script files needed.
static void	serverFileParser() This method is used to parse the server.xml file using the XML parser.
static void	setServerFilePath(java.lang.String uri) Set up the file path for the server.xml file
static void	showError(java.lang.String msg) Displays error messages in dialog box
static void	showInfo(java.lang.String msg) Displays info messages in dialog box
static boolean	sourceFilesExist() Check whether the Transaction Source File Directory provided by user contains all the transaction source files needed.
static boolean	transTableSetup() Set up the transaction table and keywords by parsing the GlobalData.protoFile file.

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Field Detail

dbURL

public static java.lang.String dbURL

The jdbc url

dbDriver

public static java.lang.String dbDriver

The jdbc driver string

dbName

public static java.lang.String dbName

The name of DBMS

singleAccntName

public static final java.lang.String singleAccntName

The user account for the single user mode.

singleAccntPasswd

public static final java.lang.String singleAccntPasswd

The passward for the single user mode.

SyncSPFileName

public static final java.lang.String SyncSPFileName

The file coontains the stored procedure for synchronization

serverNamesFile

public static final java.lang.String serverNamesFile

The defination of name and jdbc url for multipal servers.

MyFavoriteLineLength

public static final int MyFavoriteLineLength

default length limit for a line when displaying user query on the query result frame, see checkDBreportFrame.java

isMultiUserMode

public static boolean isMultiUserMode

This flag indeciate whether multi-user mode is provided.

accntName

public static java.lang.String accntName

The usre account.

accntPasswd

public static java.lang.String accntPasswd

The user password.

proxy

public static java.lang.String proxy

Stored the proxy string

isFromHome

public static boolean isFromHome

Whether connected from home is checked. It is only used for Sybase.

dbSchemaFile

public static java.lang.String dbSchemaFile

The path of user database schema file.

dbInitFile

public static java.lang.String dbInitFile

The path if user database initialization file.

numOfTerminals

public static int numOfTerminals

The number of terminals user asks to run in a experiment.

thinkTime

public static int thinkTime

The interval of each transaction in seconds.

executeTime

public static int executeTime

The maximum time a experiemnt could last in seconds.

maxrows

public static int maxrows

the number of max row per page

protoFile

public static java.lang.String protoFile

The path of prototype file.

sourceDir

public static java.lang.String sourceDir

The path of source files.

scriptDir

public static java.lang.String scriptDir

The path of script files.

argDir

public static java.lang.String argDir

The path of argument files.

sessKeys

public static java.util.Vector sessKeys

a Vector to store the Session Keywords

termKeys

public static java.util.Vector termKeys

a Vectoe to store the Terminal Keywords

transactions

public static java.util.Vector transactions

a Vector to store the Transactions.

allParaFields

public static java.util.Vector allParaFields

a Vector to store all the Parameter Names.

argumentFileNames

public static java.util.Vector argumentFileNames

Deprecated. this variable is useless.

Deadlocknumoftrans

public static java.util.Vector Deadlocknumoftrans

a array to store number of deadlocks for each transaction type

responseTime

public static double responseTime

the total response time (in milliseconds ) of sucessful transactions in all the simulating terminals.

transCounter

public static int transCounter

the total number of sucessful transactions in all the simulating terminals.

transStartTime

public static long transStartTime

The earliest transaction start time out of all transactions.

transEndTime

public static long transEndTime

The most late transaction end time out of all transactions.

EachDeadLock

public static int EachDeadLock

the counter of deadlocks for each transaction

DeadLockTime

public static double DeadLockTime

the accumulated response time in of deadlock transactions.

LogicFailTime

public static double LogicFailTime

the accumulated response time in all logic fail transactions.

NumOfDeadLock

public static int NumOfDeadLock

The number of deadlock occurs in all transactions.

NumOfLogicFail

public static int NumOfLogicFail

The number of logic fails occurs in all transactions.

globalFC

public static javax.swing.JFileChooser globalFC

use a global filechooser to keep the current filepath need to find a better way to do this. Used in the .

expLengthLimit

public static final int expLengthLimit

the max execution time, which is 60 seconds.

TSLimit

public static final int TSLimit

Maximum execution Limit(in sec) an experiment could hold the lock of the Sync table in the sigle user mode.

SINGLE_USER_MODE

public static final java.lang.String SINGLE_USER_MODE

MULIT_USER_MODE

public static final java.lang.String MULIT_USER_MODE

modes

public static final java.lang.String[] modes

The String array of the users modes. Now it contains SingleUser and MultiUser mode.

DBMS

public static final java.util.Vector DBMS

For the multi-database support. Right now, TPPT support Sybase and DB2

dbSettingMap

public static java.util.HashMap dbSettingMap

Stored the DB setting reading from server.xml in the hastable. Used dbname as key and DBSetting object as value.

chosenDBMS

public static java.lang.String chosenDBMS

The chosen DBMS by user. The default is Sybase.

transClassSuffix

public static final java.lang.String transClassSuffix

The suffix of the transaction class -"Class" String.

sourceFileExt

public static final java.lang.String sourceFileExt

The extension of the source files.

scriptFileExt

public static final java.lang.String scriptFileExt

The extension of script file.

argFileExt

public static final java.lang.String argFileExt

The extension of argument file.

defaultIsoLevel

public static final int defaultIsoLevel

The defualt isolation level of all transactions, which is Connection.TRANSACTION_SERIALIZABLE.

serverFileURL

private static java.lang.String serverFileURL

Stored the url for the server.xml file.

Constructor Detail

GlobalData

public GlobalData()

Method Detail

showError

public static void showError(java.lang.String msg)

Displays error messages in dialog box

showInfo

public static void showInfo(java.lang.String msg)

Displays info messages in dialog box

resourceFilesExist

public static boolean resourceFilesExist()

Checks whether all files or directories provided by user exist or not. Return true if all exist, false otherwise.

sourceFilesExist

public static boolean sourceFilesExist()

Check whether the Transaction Source File Directory provided by user contains all the transaction source files needed. Return true if so, false otherwise.

See Also:

sourceFileExt

scriptFilesExist

public static boolean scriptFilesExist()

Checks whether the Script Files Directory provided by user contains all the script files needed. The name of terminal script file should be :

 "Terminal" + TerminalNumber + ".scp"
 

For example, if user sets up 2 terminal are needed during the experiment, then Terminal1.scp , Terminal2.scp files must present in the Script Files Directory. Otherwise, the missing file error will be reported.

Returns:

boolean true if all the required terminal script files exist, false otherwise.

See Also:

numOfTerminals

argFilesExist

public static boolean argFilesExist()

Check whether the Argument Files Directory provided by user contains all the argument files needed. Each distinct parameter (exception connection parameter) defined in the transaction method of the prototype file should have a corresponding argument file in the directory. For example, if user sets up a transaction method signature as below in the prototype file:

 int StudentLogin (Connection con, String sid, String spasswd );
 

Then sid.scp and spasswd.scp should be present in the Argument Files Directory.
Bug: allParaFields is never been initialized. Hence, the size of allParaFields is always zero and it won't go into the for loop to check the present of the argument file. Solution: Add the code in PrototypesAnaluzer.createTransactionTable to initialize the allParaFields.

Returns:

boolean true if all the required parameter files exist, false otherwise.

transTableSetup

public static boolean transTableSetup()

Set up the transaction table and keywords by parsing the GlobalData.protoFile file.

See Also:

PrototypesAnalyzer

enoughArgs

public static boolean enoughArgs()

Check if terminal keys' argument files have enough data for all terminals.

See Also:

termKeys, numOfTerminals

cleanRT

public static void cleanRT()

Clean up performance measurement variables. Make sure statistical data flushed before each new expriment. Remind user to save results from last experiment (JY2001)

discardAllData

public static void discardAllData()

To discard all the user input data or system variables. It is called by DTFrame duing the time when a new experiment is created.

printGlobalData

private static void printGlobalData()

clearInput

public static void clearInput()

The method will clear all the user input fields. This is especially helpful if the user just ran some experiments and wants to start afresh, e.g., when the next exp button is pushed.

setServerFilePath

public static void setServerFilePath(java.lang.String uri)

Set up the file path for the server.xml file

Parameters:

uri - the url for server.xml file

serverFileParser

public static void serverFileParser()

This method is used to parse the server.xml file using the XML parser.

See Also:

getElementValueByName(org.w3c.dom.Node, int)

getElementValueByName

private static void getElementValueByName(org.w3c.dom.Node parent,
                                          int count)

Get the elemnt value by the name of element. And each DBMS setting will store in the the hash table using the dbname of they key and DBSetting object as the vaule.

Parameters:

parent - the parent node.

count - the counter to record the count of current DBMS.

main

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