package demo38;
import org.openswing.swing.table.client.GridController;
import java.util.*;
import org.openswing.swing.message.receive.java.*;
import java.sql.*;
import org.openswing.swing.message.send.java.FilterWhereClause;
import org.openswing.swing.table.java.GridDataLocator;
import org.openswing.swing.mdi.client.MDIFrame;
import org.openswing.swing.server.QueryUtil;
import org.openswing.swing.message.send.java.GridParams;
import org.openswing.swing.permissions.java.CryptUtils;
/**
* <p>Title: OpenSwing Framework</p>
* <p>Description: Grid controller.</p>
* <p>Copyright: Copyright (C) 2006 Mauro Carniel</p>
* <p> </p>
* @author Mauro Carniel
* @version 1.0
*/
public class UsersGridFrameController extends GridController implements GridDataLocator {
private UsersGridFrame grid = null;
private Connection conn = null;
public UsersGridFrameController(Connection conn) {
this.conn = conn;
grid = new UsersGridFrame(conn,this);
MDIFrame.add(grid);
}
/**
* Callback method invoked to load data on the grid.
* @param action fetching versus: PREVIOUS_BLOCK_ACTION, NEXT_BLOCK_ACTION or LAST_BLOCK_ACTION
* @param startPos start position of data fetching in result set
* @param filteredColumns filtered columns
* @param currentSortedColumns sorted columns
* @param currentSortedVersusColumns ordering versus of sorted columns
* @param valueObjectType v.o. type
* @param otherGridParams other grid parameters
* @return response from the server: an object of type VOListResponse if data loading was successfully completed, or an ErrorResponse onject if some error occours
*/
public Response loadData(
int action,
int startIndex,
Map filteredColumns,
ArrayList currentSortedColumns,
ArrayList currentSortedVersusColumns,
Class valueObjectType,
Map otherGridParams) {
try {
String sql = "select USERS.USERNAME,USERS.PASSWORD,USERS.DESCRIPTION FROM USERS";
Map attrs = new HashMap();
attrs.put("username","USERS.USERNAME");
attrs.put("password","USERS.PASSWORD");
attrs.put("description","USERS.DESCRIPTION");
return QueryUtil.getQuery(
conn,
sql,
new ArrayList(),
attrs,
valueObjectType,
"Y",
"N",
new GridParams(
action,
startIndex,
filteredColumns,
currentSortedColumns,
currentSortedVersusColumns,
otherGridParams
),
true
);
}
catch (Exception ex) {
ex.printStackTrace();
return new ErrorResponse(ex.getMessage());
}
}
/**
* Method invoked when the user has clicked on save button and the grid is in INSERT mode.
* @param rowNumbers row indexes related to the new rows to save
* @param newValueObjects list of new value objects to save
* @return an ErrorResponse value object in case of errors, VOListResponse if the operation is successfully completed
*/
public Response insertRecords(int[] rowNumbers, ArrayList newValueObjects) throws Exception {
try {
Map attrs = new HashMap();
attrs.put("username", "USERNAME");
attrs.put("password", "PASSWORD");
attrs.put("description", "DESCRIPTION");
UserVO vo = null;
for(int i=0;i<newValueObjects.size();i++) {
vo = (UserVO)newValueObjects.get(i);
vo.setPassword( new String(CryptUtils.getInstance().encodeText(vo.getPassword())) );
}
return QueryUtil.insertTable(
conn,
newValueObjects,
"USERS",
attrs,
"Y",
"N",
true
);
}
catch (Throwable ex) {
conn.rollback();
return new ErrorResponse(ex.getMessage());
}
finally {
conn.commit();
}
}
/**
* Method invoked when the user has clicked on save button and the grid is in EDIT mode.
* @param rowNumbers row indexes related to the changed rows
* @param oldPersistentObjects old value objects, previous the changes
* @param persistentObjects value objects relatied to the changed rows
* @return an ErrorResponse value object in case of errors, VOListResponse if the operation is successfully completed
*/
public Response updateRecords(int[] rowNumbers,ArrayList oldPersistentObjects,ArrayList persistentObjects) throws Exception {
try {
Map attrs = new HashMap();
attrs.put("username", "USERNAME");
attrs.put("password", "PASSWORD");
attrs.put("description", "DESCRIPTION");
HashSet pk = new HashSet();
pk.add("username");
Response res = null;
UserVO oldVO,newVO;
for(int i=0;i<oldPersistentObjects.size();i++) {
oldVO = (UserVO)oldPersistentObjects.get(i);
newVO = (UserVO)persistentObjects.get(i);
if (!oldVO.getPassword().equals(newVO.getPassword()))
newVO.setPassword( new String(CryptUtils.getInstance().encodeText(newVO.getPassword())) );
res = QueryUtil.updateTable(
conn,
pk,
oldVO,
newVO,
"USERS",
attrs,
"Y",
"N",
true
);
if (res.isError()) {
conn.rollback();
return res;
}
}
conn.commit();
return new VOListResponse(persistentObjects,true,persistentObjects.size());
}
catch (Throwable ex) {
conn.rollback();
return new ErrorResponse(ex.getMessage());
}
}
/**
* Method invoked when the user has clicked on delete button and the grid is in READONLY mode.
* @param persistentObjects value objects to delete (related to the currently selected rows)
* @return an ErrorResponse value object in case of errors, VOResponse if the operation is successfully completed
*/
public Response deleteRecords(ArrayList persistentObjects) throws Exception {
PreparedStatement stmt = null;
try {
stmt = conn.prepareStatement("delete from USERS where USERNAME=?");
for(int i=0;i<persistentObjects.size();i++) {
UserVO vo = (UserVO)persistentObjects.get(i);
stmt.setString(1,vo.getUsername());
stmt.execute();
}
return new VOResponse(new Boolean(true));
}
catch (SQLException ex) {
ex.printStackTrace();
return new ErrorResponse(ex.getMessage());
}
finally {
try {
stmt.close();
conn.commit();
}
catch (SQLException ex1) {
}
}
}
}
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