/**
* 使用 ResultSet 中的第 i 行给 Schema 赋值
*
* @param: rs ResultSet
* @param: i int
* @return: boolean
*/
public boolean setSchema(ResultSet rs, int i) {
try {
// rs.absolute(i); // 非滚动游标
if (rs.getString("CalCode") == null) this.calCode = null;
else this.calCode = rs.getString("CalCode").trim();
if (rs.getString("RiskCode") == null) this.riskCode = null;
else this.riskCode = rs.getString("RiskCode").trim();
if (rs.getString("Type") == null) this.type = null;
else this.type = rs.getString("Type").trim();
if (rs.getString("CalSQL") == null) this.calSQL = null;
else this.calSQL = rs.getString("CalSQL").trim();
if (rs.getString("Remark") == null) this.remark = null;
else this.remark = rs.getString("Remark").trim();
} catch (SQLException sqle) {
System.out.println(
"数据库中的LEPCalMode表字段个数和Schema中的字段个数不一致，或者执行db.executeQuery查询时没有使用select * from tables");
// @@错误处理
CError tError = new CError();
tError.moduleName = "LEPCalModeSchema";
tError.functionName = "setSchema";
tError.errorMessage = sqle.toString();
this.mErrors.addOneError(tError);
return false;
}
return true;
}
public MetadataBlob[] select(String selectString) {
PreparedStatement stmt = null;
try {
stmt =
conn.prepareStatement(
"select writingKey, mapkey, blobdata from metadatablobs " + selectString + ";");
ResultSet rs = stmt.executeQuery();
List<MetadataBlob> list = new ArrayList<MetadataBlob>();
while (rs.next()) {
MetadataBlob f =
new MetadataBlob(
rs.getString("writingkey"), rs.getString("mapkey"), rs.getString("blobdata"));
list.add(f);
}
return list.toArray(new MetadataBlob[0]);
} catch (SQLException sqe) {
System.err.println("Error selecting: " + selectString);
sqe.printStackTrace();
return null;
} finally {
if (stmt != null)
try {
stmt.close();
} catch (SQLException sqe2) {
sqe2.printStackTrace();
}
}
}
// execute and get results
private void execute(Connection conn, String text, Writer writer, boolean commaSeparator)
throws SQLException {
BufferedWriter buffer = new BufferedWriter(writer);
Statement stmt = conn.createStatement();
stmt.execute(text);
ResultSet rs = stmt.getResultSet();
ResultSetMetaData metadata = rs.getMetaData();
int nbCols = metadata.getColumnCount();
String[] labels = new String[nbCols];
int[] colwidths = new int[nbCols];
int[] colpos = new int[nbCols];
int linewidth = 1;
// read each occurrence
try {
while (rs.next()) {
for (int i = 0; i < nbCols; i++) {
Object value = rs.getObject(i + 1);
if (value != null) {
buffer.write(value.toString());
if (commaSeparator) buffer.write(",");
}
}
}
buffer.flush();
rs.close();
} catch (IOException ex) {
if (Debug.isDebug()) ex.printStackTrace();
// ok, exit from the loop
} catch (SQLException ex) {
if (Debug.isDebug()) ex.printStackTrace();
}
}
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter writer = response.getWriter();
String noteName = request.getParameter("noteName");
String note = request.getParameter("note");
try {
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/evernoteDB");
Statement st = con.createStatement();
st.executeUpdate(
"INSERT INTO note (noteName, note) VALUES ('" + noteName + "','" + note + "')");
response.sendRedirect("/userNotes.jsp");
} catch (ClassNotFoundException e) {
writer.println("Couldn't load database driver: " + e.getMessage());
} catch (SQLException e) {
writer.println("SQLException caught: " + e.getMessage());
} catch (Exception e) {
writer.println(e);
}
}
public static String getVersion(Connection conn) throws SQLException {
String method = "getVersion";
int location = 1000;
try {
location = 2000;
String value = "";
location = 2100;
Statement stmt = conn.createStatement();
String strSQL =
"SELECT CASE "
+ "WHEN POSITION ('HAWQ 2.0.1' in version) > 0 THEN 'HAWQ_2_0_1' "
+ "WHEN POSITION ('HAWQ 2.0.0' in version) > 0 THEN 'HAWQ_2_0_0' "
+ "WHEN POSITION ('HAWQ 1' in version) > 0 THEN 'HAWQ_1' "
+ "WHEN POSITION ('HAWQ' in version) = 0 AND POSITION ('Greenplum Database' IN version) > 0 THEN 'GPDB' "
+ "ELSE 'OTHER' END "
+ "FROM version()";
if (debug) Logger.printMsg("Getting Variable: " + strSQL);
location = 2200;
ResultSet rs = stmt.executeQuery(strSQL);
while (rs.next()) {
value = rs.getString(1);
}
location = 2300;
return value;
} catch (SQLException ex) {
throw new SQLException(
"(" + myclass + ":" + method + ":" + location + ":" + ex.getMessage() + ")");
}
}
private boolean login(String[] part) {
ResultSet rs = null;
try {
rs = beanOracle.selection("PASSWORD", "UTILISATEURS", "LOGIN = '******'");
} catch (SQLException e) {
System.err.println(e.getStackTrace());
}
String pwd = null;
try {
if (!rs.next()) {
SendMsg("ERR#Login invalide");
} else pwd = rs.getString("PASSWORD");
} catch (SQLException ex) {
System.err.println(ex.getStackTrace());
}
if (pwd.equals(part[2])) {
SendMsg("ACK");
return true;
} else SendMsg("ERR#Mot de passe incorrecte");
return false;
}
/**
* Deletes an instructor from the database. Deletes the instructor's courses by invoking the
* deleteCourse method. Throws InvalidDBRequestException if instructor not in the database or
* other database connection problems.
*
* @see deleteCourse
* @param instructor instructor's user name
* @throws InvalidDBRequestException
*/
public void deleteInstructor(String instructor) throws InvalidDBRequestException {
try {
Class.forName(GaigsServer.DBDRIVER);
db =
DriverManager.getConnection(GaigsServer.DBURL, GaigsServer.DBLOGIN, GaigsServer.DBPASSWD);
Statement stmt = db.createStatement();
int count;
// delete the instructor's courses
ResultSet rs =
stmt.executeQuery(
"select course_num from course where instructor = '" + instructor + "'");
while (rs.next()) deleteCourse(rs.getString(1).trim(), instructor);
// delete the instructor's record
count = stmt.executeUpdate("delete from instructor where login ='******'");
rs.close();
stmt.close();
db.close();
} catch (SQLException e) {
System.err.println("Invalid SQL in addCourse: " + e.getMessage());
throw new InvalidDBRequestException("??? ");
} catch (ClassNotFoundException e) {
System.err.println("Driver Not Loaded");
throw new InvalidDBRequestException("Internal Server Error");
}
}
/**
* Delete a student from the database. Also deletes the student's folders. Throws
* InvalidDBRequestException if any error in database connection.
*
* @param username student's user name
* @throws InvalidDBRequestException
*/
private void purgeStudent(String username) throws InvalidDBRequestException {
try {
Class.forName(GaigsServer.DBDRIVER);
db =
DriverManager.getConnection(GaigsServer.DBURL, GaigsServer.DBLOGIN, GaigsServer.DBPASSWD);
Statement stmt = db.createStatement();
int count;
// delete from scores
count = stmt.executeUpdate("delete from scores where user_login = '******'");
// delete from student
count = stmt.executeUpdate("delete from student where login = '******'");
// delete student's folder
File studentDir = new File("./StudentQuizzes/" + username);
if (!(studentDir.delete())) {
System.err.println("Error in deleting folder for student: " + username);
}
stmt.close();
db.close();
} catch (SQLException e) {
System.err.println("Invalid SQL in addCourse: " + e.getMessage());
throw new InvalidDBRequestException("??? ");
} catch (ClassNotFoundException e) {
System.err.println("Driver Not Loaded");
throw new InvalidDBRequestException("Internal Server Error");
}
}
/**
* Deletes students who are older than a certain number of years and not registered to any course.
*
* @param year students older than year are candidates to be deleted
* @throws InvalidDBRequestException
*/
public void deleteOldStudent(int year) throws InvalidDBRequestException {
try {
Class.forName(GaigsServer.DBDRIVER);
db =
DriverManager.getConnection(GaigsServer.DBURL, GaigsServer.DBLOGIN, GaigsServer.DBPASSWD);
Statement stmt = db.createStatement();
// query all student who have been in the database longer than a number of years and not
// registered to any course
ResultSet rs =
stmt.executeQuery(
"select login, count(course_id) "
+ "from student s left join courseRoster r on login = user_login "
+ "where date_entered < SUBDATE(now(), INTERVAL "
+ new String().valueOf(year).trim()
+ " YEAR) "
+ "group by login, date_entered");
// delete them
while (rs.next()) if (rs.getInt(2) == 0) purgeStudent(rs.getString(1).trim());
rs.close();
stmt.close();
db.close();
} catch (SQLException e) {
System.err.println("Invalid SQL in addCourse: " + e.getMessage());
throw new InvalidDBRequestException("??? ");
} catch (ClassNotFoundException e) {
System.err.println("Driver Not Loaded");
throw new InvalidDBRequestException("Internal Server Error");
}
}
/**
* Remove a student from a particular course. Also Deletes all the quiz vizualisation files in the
* student's directory which relates to the course. Caution: vizualisation file will be deleted
* eventhough it also relates to another course if the student is also registered to that course.
* (FIX ME!) Throws InvalidDBRequestException if the student is not registered in the course,
* error occured during deletion, or other exception occured.
*
* @param username student's user name
* @param courseID course id (course number + instructor name)
* @throws InvalidDBRequestException
*/
public void deleteStudent(String username, String courseID) throws InvalidDBRequestException {
try {
Class.forName(GaigsServer.DBDRIVER);
db =
DriverManager.getConnection(GaigsServer.DBURL, GaigsServer.DBLOGIN, GaigsServer.DBPASSWD);
Statement stmt = db.createStatement();
ResultSet rs;
int count = 0;
// check if student registered to the course
rs =
stmt.executeQuery(
"select * from courseRoster where course_id = '"
+ courseID
+ "' and user_login = '******'");
if (!rs.next())
throw new InvalidDBRequestException("Student is not registered to the course");
// remove student from the course
count =
stmt.executeUpdate(
"delete from courseRoster where course_id = '"
+ courseID
+ "' and user_login = '******'");
if (count != 1) throw new InvalidDBRequestException("Error occured during deletion!");
// delete the quiz visualization files
rs =
stmt.executeQuery(
"select distinct unique_id, s.test_name from scores s, courseTest t "
+ "where s.test_name = t.test_name "
+ "and course_id = '"
+ courseID
+ "' "
+ "and user_login = '******'");
while (rs.next()) {
deleteVisualization(rs.getString(1), username, rs.getString(2));
count =
stmt.executeUpdate("delete from scores where unique_id = " + rs.getString(1).trim());
}
rs.close();
stmt.close();
db.close();
} catch (SQLException e) {
System.err.println("Invalid SQL in addstudent: " + e.getMessage());
throw new InvalidDBRequestException("???");
} catch (ClassNotFoundException e) {
System.err.println("Driver Not Loaded");
throw new InvalidDBRequestException("Internal Server Error");
}
}
/**
* Gets a list of courses that belongs to an instructor. Throws InvalidDBRequestException if any
* error occured to the database connection.
*
* @param name the instructor's user name
* @return a vector containing the list of courses
* @throws InvalidDBRequestException
*/
public Vector getCourseList(String name) throws InvalidDBRequestException {
Vector courseList = new Vector();
try {
Connection db;
Class.forName(GaigsServer.DBDRIVER);
db =
DriverManager.getConnection(GaigsServer.DBURL, GaigsServer.DBLOGIN, GaigsServer.DBPASSWD);
Statement stmt = db.createStatement();
ResultSet rs;
// get the course list
rs =
stmt.executeQuery(
"select course_num, course_name from course where instructor = '"
+ name
+ "' order by course_num");
while (rs.next()) courseList.add(rs.getString(1) + " - " + rs.getString(2));
rs.close();
stmt.close();
db.close();
} catch (SQLException e) {
System.err.println("Invalid SQL in getCourseList: " + e.getMessage());
throw new InvalidDBRequestException("???");
} catch (ClassNotFoundException e) {
System.err.println("Driver Not Loaded");
throw new InvalidDBRequestException("Server Error");
}
return courseList;
}
public static void dropExternalReplTable(
Connection conn,
String sourceType,
String targetSchema,
String targetTable,
String sourceTable)
throws SQLException {
String method = "dropExternalReplTable";
int location = 1000;
try {
location = 2000;
String replTargetSchema = externalSchema;
location = 2100;
String replTargetTable = getStageTableName(targetSchema, targetTable);
location = 2200;
String replSourceTable = getReplTableName(sourceType, sourceTable);
location = 2315;
dropExternalTable(conn, replTargetSchema, replTargetTable);
} catch (SQLException ex) {
throw new SQLException(
"(" + myclass + ":" + method + ":" + location + ":" + ex.getMessage() + ")");
}
}
/** Returns true if this VM has acquired the right to run this TestTask */
private static DUnitRun getDUnitRun() {
if (dunitRun != null) {
System.out.println("BBB dunitRun not null returning");
return dunitRun;
}
try {
SwarmBB.getBB().getSharedLock().lock();
Integer runId = (Integer) SwarmBB.getBB().getSharedMap().get(SwarmBB.RUN_ID);
System.out.println("BBB runID=" + runId);
if (runId != null) {
dunitRun = Swarm.getDUnitRun(runId);
System.out.println("BBB lookedUp RUN:" + dunitRun);
} else {
dunitRun = Swarm.generateNewDUnitRun();
System.out.println(
"BBB GENNED UP A RUN:" + dunitRun + " mapping to id:" + dunitRun.getId());
SwarmBB.getBB().getSharedMap().put(SwarmBB.RUN_ID, dunitRun.getId());
}
} catch (SQLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
SwarmBB.getBB().getSharedLock().unlock();
}
return dunitRun;
}
/**
* Maps attributes of an SQL structured type that are not serialized to a serialized form, using
* the given type map for custom mapping when appropriate. The following types in the Java
* programming language are mapped to their serialized forms: <code>Struct</code>, <code>SQLData
* </code>, <code>Ref</code>, <code>Blob</code>, <code>Clob</code>, and <code>Array</code>.
*
* <p>This method is called internally and is not used by an application programmer.
*
* @param map a <code>java.util.Map</code> object in which each entry consists of 1) a <code>
* String</code> object giving the fully qualified name of a UDT and 2) the <code>Class</code>
* object for the <code>SQLData</code> implementation that defines how the UDT is to be mapped
* @throws SerialException if an error occurs
*/
private void mapToSerial(Map map) throws SerialException {
try {
for (int i = 0; i < attribs.length; i++) {
if (attribs[i] instanceof Struct) {
attribs[i] = new SerialStruct((Struct) attribs[i], map);
} else if (attribs[i] instanceof SQLData) {
attribs[i] = new SerialStruct((SQLData) attribs[i], map);
} else if (attribs[i] instanceof Blob) {
attribs[i] = new SerialBlob((Blob) attribs[i]);
} else if (attribs[i] instanceof Clob) {
attribs[i] = new SerialClob((Clob) attribs[i]);
} else if (attribs[i] instanceof Ref) {
attribs[i] = new SerialRef((Ref) attribs[i]);
} else if (attribs[i] instanceof java.sql.Array) {
attribs[i] = new SerialArray((java.sql.Array) attribs[i], map);
}
}
} catch (SQLException e) {
throw new SerialException(e.getMessage());
}
return;
}
public void deleteOption(String modelName, String optionSetName, String option) {
try {
int autoid = 0;
String sql = "select id from automobile where name ='" + modelName + "';";
ResultSet rs;
rs = statement.executeQuery(sql);
while (rs.next()) {
autoid = rs.getInt("id"); // get auto_id
}
int opsid = 0;
sql =
"select id from optionset where name ='"
+ optionSetName
+ "' and auto_id= "
+ autoid
+ ";";
rs = statement.executeQuery(sql);
while (rs.next()) {
opsid = rs.getInt("id"); // get option_id
}
sql = "delete from options where name= '" + option + "' and option_id= " + opsid;
statement.executeUpdate(sql); // delete it using name and option_id
} catch (SQLException e) {
e.printStackTrace();
}
}
/** Creates a Pooled connection and adds it to the connection pool. */
private void installConnection() throws EmanagerDatabaseException {
logger.debug("enter");
PooledConnection connection;
try {
connection = poolDataSource.getPooledConnection();
connection.addConnectionEventListener(this);
connection.getConnection().setAutoCommit(false);
synchronized (connectionPool) {
connectionPool.add(connection);
logger.debug("Database connection added.");
}
} catch (SQLException ex) {
logger.fatal("exception caught while obtaining database " + "connection: ex = " + ex);
SQLException ex1 = ex.getNextException();
while (ex1 != null) {
logger.fatal("chained sql exception ex1 = " + ex1);
SQLException nextEx = ex1.getNextException();
ex1 = nextEx;
}
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.DatabaseConnectionFailure.getStatusCodeDescription()
+ ex.getMessage();
logger.fatal(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.DatabaseConnectionFailure, logString);
throw ede;
}
}
public void conectarBaseDeDatos() {
try {
final String CONTROLADOR = "org.postgresql.Driver";
Class.forName(CONTROLADOR);
// System.getProperty( "user.dir" )+"/CarpetaBD/NombredelaBasedeDatos.mdb";
conexion =
DriverManager.getConnection(
"jdbc:postgresql://" + main.ipSeleccionada + "/" + objUtils.nameBD, user, pass);
// conexion = DriverManager.getConnection("jdbc:postgresql://127.0.0.1/goliak_jg", "postgres",
// "majcp071102kaiser");
sentencia = conexion.createStatement();
/*JOptionPane.showMessageDialog(null, "si conecta");*/
} catch (ClassNotFoundException ex1) {
// ex1.printStackTrace();
javax.swing.JOptionPane.showMessageDialog(null, "Error Carga Driver." + ex1.getMessage());
System.exit(1);
} catch (SQLException ex) {
// ex.printStackTrace();
javax.swing.JOptionPane.showMessageDialog(
null,
"Error Creacion Statement."
+ ex.getMessage()
+ " / "
+ url
+ " / "
+ user
+ " / "
+ pass);
System.exit(1);
}
}
public void display(ResultSet rs) {
try {
boolean recordNumber = rs.next();
if (recordNumber) {
payNo = rs.getString(1);
pasNo = rs.getString(2);
pasName = rs.getString(3);
mode = rs.getString(4);
dt = rs.getString(5);
amount = rs.getString(6);
rev = rs.getString(7);
text1.setText(payNo);
combo1.setSelectedItem(pasNo);
combo2.setSelectedItem(pasName);
combo4.setSelectedItem(mode);
p_date.setText(dt);
combo8.setSelectedItem(amount);
combo3.setSelectedItem(rev);
} else {
JOptionPane.showMessageDialog(
null, "Record Not found", "ERROR", JOptionPane.DEFAULT_OPTION);
}
} catch (SQLException sqlex) {
sqlex.printStackTrace();
}
}
// AQUI VOYA OBTENER EL SERVDUIOR QUEMADO EN UN ARCHIVO DE TEXTO
public void conectarBaseDeDatos2() {
try {
final String CONTROLADOR = "org.postgresql.Driver";
Class.forName(CONTROLADOR);
// System.getProperty( "user.dir" )+"/CarpetaBD/NombredelaBasedeDatos.mdb";
conexion = DriverManager.getConnection(url2, user, pass);
sentencia = conexion.createStatement();
/*JOptionPane.showMessageDialog(null, "si conecta");*/
} catch (ClassNotFoundException ex1) {
// ex1.printStackTrace();
javax.swing.JOptionPane.showMessageDialog(null, "Error Carga Driver." + ex1.getMessage());
System.exit(1);
} catch (SQLException ex) {
// ex.printStackTrace();
javax.swing.JOptionPane.showMessageDialog(
null,
"Error Creacion Statement."
+ ex.getMessage()
+ " / "
+ url2
+ " / "
+ user
+ " / "
+ pass);
System.exit(1);
}
}
/**
* 使用 ResultSet 中的第 i 行给 Schema 赋值
*
* @param: rs ResultSet
* @param: i int
* @return: boolean
*/
public boolean setSchema(ResultSet rs, int i) {
try {
// rs.absolute(i); // 非滚动游标
if (rs.getString("RiskCode") == null) this.riskCode = null;
else this.riskCode = rs.getString("RiskCode").trim();
if (rs.getString("RiskVer") == null) this.riskVer = null;
else this.riskVer = rs.getString("RiskVer").trim();
if (rs.getString("DutyCode") == null) this.dutyCode = null;
else this.dutyCode = rs.getString("DutyCode").trim();
if (rs.getString("ChoFlag") == null) this.choFlag = null;
else this.choFlag = rs.getString("ChoFlag").trim();
if (rs.getString("SpecFlag") == null) this.specFlag = null;
else this.specFlag = rs.getString("SpecFlag").trim();
} catch (SQLException sqle) {
System.out.println(
"数据库中的LEPRiskDuty表字段个数和Schema中的字段个数不一致，或者执行db.executeQuery查询时没有使用select * from tables");
// @@错误处理
CError tError = new CError();
tError.moduleName = "LEPRiskDutySchema";
tError.functionName = "setSchema";
tError.errorMessage = sqle.toString();
this.mErrors.addOneError(tError);
return false;
}
return true;
}
/**
* Check the user's name and password and verify that the user is an instructor. Throws
* InvalidDBRequestException if user is not an instructor, wrong password, or if any error occured
* to the database connection.
*
* @param name user's user name
* @param pass user's password
* @throws InvalidDBRequestException
*/
public void instructorLogin(String name, String pass) throws InvalidDBRequestException {
try {
Connection db;
Class.forName(GaigsServer.DBDRIVER);
db =
DriverManager.getConnection(GaigsServer.DBURL, GaigsServer.DBLOGIN, GaigsServer.DBPASSWD);
Statement stmt = db.createStatement();
ResultSet rs;
// check if instructor
rs = stmt.executeQuery("select password from instructor where login = '******'");
if (!rs.next()) {
if (debug) System.out.println("User not found in the instructor table");
throw new InvalidDBRequestException("Instructor not registered");
}
// check password
if (!rs.getString(1).equals(pass)) {
if (debug) System.out.println("Invalid password for user: "******"Invalid password for user: "******"Invalid SQL in instructor login: "******"???");
} catch (ClassNotFoundException e) {
System.err.println("Driver Not Loaded");
throw new InvalidDBRequestException("Server Error");
}
}
public static void failJobs(Connection conn) throws SQLException {
String method = "failJobs";
int location = 1000;
try {
Statement stmt = conn.createStatement();
String strSQL =
"INSERT INTO os.ao_queue (queue_id, status, queue_date, start_date, end_date, "
+ "error_message, num_rows, id, refresh_type, target_schema_name, target_table_name, target_append_only, "
+ "target_compressed, target_row_orientation, source_type, source_server_name, source_instance_name, "
+ "source_port, source_database_name, source_schema_name, source_table_name, source_user_name, "
+ "source_pass, column_name, sql_text, snapshot) "
+ "SELECT queue_id, 'failed' as status, queue_date, start_date, now() as end_date, "
+ "'Outsourcer stop requested' as error_message, num_rows, id, refresh_type, target_schema_name, "
+ "target_table_name, target_append_only, target_compressed, target_row_orientation, source_type, "
+ "source_server_name, source_instance_name, source_port, source_database_name, source_schema_name, "
+ "source_table_name, source_user_name, source_pass, column_name, sql_text, snapshot "
+ "FROM os.queue WHERE status = 'queued'";
stmt.executeUpdate(strSQL);
} catch (SQLException ex) {
throw new SQLException(
"(" + myclass + ":" + method + ":" + location + ":" + ex.getMessage() + ")");
}
}
public static void customStartAll(Connection conn) throws SQLException {
String method = "customStartAll";
int location = 1000;
try {
Statement stmt = conn.createStatement();
int id = 0;
int gpfdistPort = 0;
String strSQL = "SELECT id\n";
strSQL += "FROM os.custom_sql";
ResultSet rs = stmt.executeQuery(strSQL);
while (rs.next()) {
id = rs.getInt(1);
gpfdistPort = GpfdistRunner.customStart(OSProperties.osHome);
strSQL = "INSERT INTO os.ao_custom_sql\n";
strSQL +=
"(id, table_name, columns, column_datatypes, sql_text, source_type, source_server_name, source_instance_name, source_port, source_database_name, source_user_name, source_pass, gpfdist_port)\n";
strSQL +=
"SELECT id, table_name, columns, column_datatypes, sql_text, source_type, source_server_name, source_instance_name, source_port, source_database_name, source_user_name, source_pass, "
+ gpfdistPort
+ "\n";
strSQL += "FROM os.custom_sql\n";
strSQL += "WHERE id = " + id;
stmt.executeUpdate(strSQL);
}
} catch (SQLException ex) {
throw new SQLException(
"(" + myclass + ":" + method + ":" + location + ":" + ex.getMessage() + ")");
}
}
public static String getVariable(Connection conn, String name) throws SQLException {
String method = "getVariable";
int location = 1000;
try {
location = 2000;
String value = "";
location = 2100;
Statement stmt = conn.createStatement();
String strSQL = "SELECT os.fn_get_variable('" + name + "')";
if (debug) Logger.printMsg("Getting Variable: " + strSQL);
location = 2200;
ResultSet rs = stmt.executeQuery(strSQL);
while (rs.next()) {
value = rs.getString(1);
}
location = 2300;
return value;
} catch (SQLException ex) {
throw new SQLException(
"(" + myclass + ":" + method + ":" + location + ":" + ex.getMessage() + ")");
}
}
public void updateOptionPrice(
String modelName, String optionSetName, String optionName, float newPrice) {
try {
int autoid = 0;
String sql = "select id from automobile where name ='" + modelName + "';";
ResultSet rs = statement.executeQuery(sql);
while (rs.next()) {
autoid = rs.getInt("id"); // get auto_id
}
int opsid = 0;
sql =
"select id from optionset where name ='"
+ optionSetName
+ "' and auto_id= "
+ autoid
+ ";";
rs = statement.executeQuery(sql);
while (rs.next()) {
opsid = rs.getInt("id"); // get option_id
}
sql =
"update options set price = "
+ newPrice
+ " where name= '"
+ optionName
+ "' and option_id= "
+ opsid
+ ";";
statement.executeUpdate(sql); // update it with name and option_id
} catch (SQLException e) {
e.printStackTrace();
}
}
public void conectarBDdinamic(String ip) {
if (ip == null) {
ip = "192.168.8.231";
}
url = "jdbc:postgresql://" + ip + "/ventasalm";
// javax.swing.JOptionPane.showMessageDialog(null, url);
String estado;
try {
final String CONTROLADOR = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
Class.forName(CONTROLADOR);
// System.getProperty( "user.dir" )+"/CarpetaBD/NombredelaBasedeDatos.mdb";
conexion = DriverManager.getConnection(url, user, pass);
sentencia = conexion.createStatement();
// estado="Conectado Correctamente";
} catch (ClassNotFoundException ex1) {
ex1.printStackTrace();
javax.swing.JOptionPane.showMessageDialog(null, "Error Carga Driver");
estado = "Servidor no esta disponible";
// System.exit(1);
} catch (SQLException ex) {
ex.printStackTrace();
javax.swing.JOptionPane.showMessageDialog(null, "Error Creacion Statement");
estado = "Servidor no esta disponible";
// System.exit(1);
}
// return estado;
}
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String username = request.getParameter("username");
String password = request.getParameter("password");
Statement stmt;
ResultSet rs;
Connection con = null;
try {
Class.forName("com.mysql.jdbc.Driver");
String connectionUrl = "jdbc:mysql://localhost/myflickr?" + "user=root&password=123456";
con = DriverManager.getConnection(connectionUrl);
if (con != null) {
System.out.println("connected to mysql");
}
} catch (SQLException e) {
System.out.println("SQL Exception: " + e.toString());
} catch (ClassNotFoundException cE) {
System.out.println("Class Not Found Exception: " + cE.toString());
}
try {
stmt = con.createStatement();
System.out.println("SELECT * FROM flickrusers WHERE name='" + username + "'");
rs = stmt.executeQuery("SELECT * FROM flickrusers WHERE name='" + username + "'");
while (rs.next()) {
if (rs.getObject(1).toString().equals(username)) {
out.println("<h1>To username pou epileksate uparxei hdh</h1>");
out.println("<a href=\"project3.html\">parakalw dokimaste kapoio allo.</a>");
stmt.close();
rs.close();
return;
}
}
stmt.close();
rs.close();
stmt = con.createStatement();
if (!stmt.execute("INSERT INTO flickrusers VALUES('" + username + "', '" + password + "')")) {
out.println("<h1>Your registration is completed " + username + "</h1>");
out.println("<a href=\"index.jsp\">go to the login menu</a>");
registerListener.Register(username);
} else {
out.println("<h1>To username pou epileksate uparxei hdh</h1>");
out.println("<a href=\"project3.html\">Register</a>");
}
} catch (SQLException e) {
throw new ServletException("Servlet Could not display records.", e);
}
}
/**
* Obtains information on a quiz that a student has taken, which includes the student's answer to
* the quiz, a unique id of the instance, number of questions in the quiz, number of questions
* answered correctly, and vizualisation type of the quiz. Throws InvalidDBRequestException if
* cannot find the record of the stuent taking the quiz, quiz is not registered in the database,
* or if any error occured to the database connection.
*
* @param student student's user name
* @param quiz quiz name
* @param startTime the time the student started the quiz
* @return a string tokenizer containing: answer,uniqueID, numQuestions, numCorrect, and
* visualType. It uses "@" as the delimiter.
* @throws InvalidDBRequestException
*/
public StringTokenizer getAnswerAndVisualType(String student, String quiz, String startTime)
throws InvalidDBRequestException {
String answer;
String uniqueID;
String numQuestions;
String numCorrect;
String visualType;
try {
Connection db;
Class.forName(GaigsServer.DBDRIVER);
db =
DriverManager.getConnection(GaigsServer.DBURL, GaigsServer.DBLOGIN, GaigsServer.DBPASSWD);
Statement stmt = db.createStatement();
ResultSet rs;
// get student's answer, unique id, number of questions, and number of questions answered
// correctly
rs =
stmt.executeQuery(
"select transcript, unique_id, num_questions, num_correct from scores "
+ "where test_name = '"
+ quiz
+ "' and user_login = '******' and start_time = '"
+ startTime
+ "'");
if (!rs.next()) throw new InvalidDBRequestException("Student has not taken the quiz");
else {
answer = rs.getString(1).trim();
uniqueID = rs.getString(2).trim();
numQuestions = rs.getString(3).trim();
numCorrect = rs.getString(4).trim();
}
// get quiz vizualisation type
rs = stmt.executeQuery("select visual_type from test where name = '" + quiz + "' ");
if (!rs.next())
throw new InvalidDBRequestException(
"Quiz was not found! Can't retrieve visualization type.");
else {
visualType = rs.getString(1);
}
rs.close();
stmt.close();
db.close();
} catch (SQLException e) {
System.err.println("Invalid SQL in getAnswerAndVisualType: " + e.getMessage());
throw new InvalidDBRequestException("???");
} catch (ClassNotFoundException e) {
System.err.println("Driver Not Loaded");
throw new InvalidDBRequestException("Internal Server Error");
}
return new StringTokenizer(
answer + "@" + uniqueID + "@" + numQuestions + "@" + numCorrect + "@" + visualType, "@");
}
/**
* Query a quiz list from the database. If there is no student user name specified, the list will
* contain all quizzes that are used in the instructor's courses. Otherwise, the list will contain
* all quizzes that the student has taken and from the instructor's courses which the student is
* registered. Throws InvalidDBRequestException if any error occured to the database connection.
*
* @param instructor instructor's user name
* @param student student's user name. Can be empty to get a list of all quizzes in the
* instructor's courses.
* @return a vector containing the list of quizzes
* @throws InvalidDBRequestException
*/
public Vector getQuizList(String instructor, String student) throws InvalidDBRequestException {
Vector list = new Vector();
try {
Connection db;
Class.forName(GaigsServer.DBDRIVER);
db =
DriverManager.getConnection(GaigsServer.DBURL, GaigsServer.DBLOGIN, GaigsServer.DBPASSWD);
Statement stmt = db.createStatement();
ResultSet rs;
if (!student.equals("")) {
// get the list that contains all quizzes that the student has taken and from the
// instructor's courses which the student is registered
rs =
stmt.executeQuery(
"select courseTest.test_name, scores.start_time from scores, courseTest, course "
+ "where courseTest.test_name = scores.test_name "
+ "and courseTest.course_id = course.course_id "
+ "and instructor = '"
+ instructor
+ "' and user_login = '******' "
+ "order by scores.start_time");
while (rs.next()) {
list.add(rs.getString(1) + " <" + rs.getString(2) + ">");
}
} else {
// get the list that contains all quizzes that are used in the instructor's courses
rs =
stmt.executeQuery(
"select test_name from courseTest, course "
+ "where courseTest.course_id = course.course_id "
+ "and instructor = '"
+ instructor
+ "' ");
while (rs.next()) {
list.add(rs.getString(1));
}
}
rs.close();
stmt.close();
db.close();
} catch (SQLException e) {
System.err.println("Invalid SQL in getQuizList: " + e.getMessage());
throw new InvalidDBRequestException("???");
} catch (ClassNotFoundException e) {
System.err.println("Driver Not Loaded");
throw new InvalidDBRequestException("Internal Server Error");
}
return list;
}
/**
* Sets the SQL structured type that this <code>SerialRef</code> object references to the given
* <code>Object</code> object.
*
* @param obj an <code>Object</code> representing the SQL structured type to be referenced
* @throws SerialException if an error is encountered generating the the structured type
* referenced by this <code>SerialRef</code> object
*/
public void setObject(Object obj) throws SerialException {
try {
reference.setObject(obj);
} catch (SQLException e) {
throw new SerialException("SQLException: " + e.getMessage());
}
object = obj;
}
