i'm try to implemente a view from eclipse preference page and in some fields this method (performStringSubstitution) not work because the StringFieldEditor do the validation before and don't give a permission to label.setText(), i'll appreciate any help. `
public void propertyChange(PropertyChangeEvent event)
{
/*Solve Eclipse variable method (${workspace_loc},${project_loc},...)*/
String dir = Activator.getDefault().getPreferenceStore()
.getString(event.getNewValue().toString());
IStringVariableManager manager = VariablesPlugin.getDefault()
.getStringVariableManager();
try {
String solvePathUpdate = manager.performStringSubstitution(dir);
label.setText(solvePathUpdate);
}
catch (CoreException e)
{
// TODO Auto-generated catch block
/* Creating the method print console */
}
}
Related
I'm currently trying to migrate an EAR Project
-The old Project-
EJB 2.0
Jboss 5.0.1
-New Project-
EJB 3.0
Wildfly 13.0.0Final
Its session beans which I have managed to create and I can call upon it. the logic in it self seems to work. The issues I'm having is one of the follow ups seems to forget what it was doing.
the current issue I'm seeing is the following:
In the Web application in an class we are creating an object of Another class which we then trigger its parent method. this parent method then calls upon a class with it self as an argument which then checks which type it is and then stars a session bean depending on what type. which then calls on the arguments function performExecute() in this function we call upon a Query and actually get the correct results, we then add the resultsets values to a private dto member. and then performExecute is done. and we are back at the web applications class and we then try to access the same dto member with a get function. this returns a nullpointer. I'm wondering if I've forgotten something in my session beans?
Old sessionbean:
public class TxNotSupportedCommandServerBean implements SessionBean {
SessionContext sessionContext;
public void ejbCreate() throws CreateException {}
public void ejbRemove() {
sessionContext = null;
}
public void ejbActivate() {}
public void ejbPassivate() {}
public void setSessionContext(SessionContext sessionContext) {
this.sessionContext = sessionContext;
}
public void executeCommand(TargetableCommand cmd) throws CommandException {
try {
cmd.performExecute();
}
catch (CommandException ex) {
throw ex;
}
}
}
The new one:
#Stateless
#Remote
#TransactionManagement(value=TransactionManagementType.CONTAINER)
#TransactionAttribute(value=REQUIRED)
public class TxNotSupportedCmdServerBean implements TxNotSupportedCmdServerRemote{
/**
* Default constructor.
*/
public TxNotSupportedCmdServerBean() {
// TODO Auto-generated constructor stub
}
public void executeCommand(TargetableCommand cmd) throws CommandException {
try {
cmd.performExecute();
}
catch (CommandException ex) {
throw ex;
}
}
}
Both these are in the EJB.Jar
the interface is implemented in the EJBClient.jar
The old Interface:
public interface TxNotSupportedCommandServerLocal extends EJBLocalObject {
public void executeCommand(TargetableCommand cmd) throws CommandException;
}
The new Interface:
public interface TxNotSupportedCmdServerRemote {
public void executeCommand(TargetableCommand cmd) throws CommandException;
}
Now here come s the next set of files that is also in the EJBClient.jar
TargetableCommand:
public abstract class TargetableCommand implements Command {
private boolean constraintViolated;
protected RequestContext requestContext;
protected String dataSourceName;
public TargetableCommand(RequestContext requestContext, String dataSourceName) {
this.requestContext = requestContext;
this.dataSourceName = dataSourceName;
}
public TargetableCommand(RequestContext requestContext) {
this.requestContext = requestContext;
}
public TargetableCommand(String dataSourceName) {
this.dataSourceName = dataSourceName;
}
public TargetableCommand() {
}
public void setConstraintViolated(boolean constraintViolated) {
this.constraintViolated = constraintViolated;
}
public boolean isConstraintViolated() {
return constraintViolated;
}
public abstract void performExecute() throws CommandException;
public void execute() throws CommandException {
CommandTarget.executeCommand(this);
}
}
Command:
public interface Command extends Serializable {
public void execute() throws CommandException;
}
The commented code is the old session beans.
CommandTarget:
public class CommandTarget {
public CommandTarget() {
}
/**
* Exekverar ett kommando i rätt miljö, t.ex. med eller utan transaktionshantering
* #param cmd TargetableCommand Kommandot som ska utföras
* #throws CommandException
*/
public static void executeCommand(TargetableCommand cmd) throws CommandException {
Context context = null;
try {
ServiceLocator sl = ServiceLocator.getInstance();
// if (cmd instanceof TxRequired) {
// TxRequiredCommandServerLocalHome cmdSrvHome = (TxRequiredCommandServerLocalHome) sl.getEJBLocalHome("TxRequiredCommandServer");
// TxRequiredCommandServerLocal cmdSrv = cmdSrvHome.create();
// cmdSrv.executeCommand(cmd);
// }
// else if(cmd instanceof TxNotSupported) {
// TxNotSupportedCommandServerLocalHome cmdSrvHome = (TxNotSupportedCommandServerLocalHome) sl.getEJBLocalHome("TxNotSupportedCommandServer");
// TxNotSupportedCommandServerLocal cmdSrv = cmdSrvHome.create();
// cmdSrv.executeCommand(cmd);
// }
// else {
// throw new CommandException("Cannot instanciate command server");
// }
//
System.out.println("CT: Inside commandTarget. about to diffrientate what instance");
context = JNDILookupClass.getInitialContext();
if (cmd instanceof TxRequired) {
System.out.println("CT: TxRequired");
TxRequiredCmdServerRemote cmdSrv = (TxRequiredCmdServerRemote)context.lookup(JNDILookupClass.getLookupName("TxRequiredCmdServerRemoteBean", TxRequiredCmdServerRemote.class.getName()));
cmdSrv.executeCommand(cmd);
}
else if(cmd instanceof TxNotSupported) {
System.out.println("CT: TxNotSupported");
System.out.println("CT: cmd: " + cmd.getClass());
TxNotSupportedCmdServerRemote cmdSrv = (TxNotSupportedCmdServerRemote)context.lookup(JNDILookupClass.getLookupName("TxNotSupportedCmdServerBean", TxNotSupportedCmdServerRemote.class.getName()));
cmdSrv.executeCommand(cmd);
}
else {
throw new CommandException("Cannot instanciate command server");
}
}
catch (CommandException ex) {
throw ex;
}
// catch (CreateException ex) {
// throw new CommandException(ex);
// }
//new catch
catch(NamingException ex) {
throw new CommandException(ex);
}
catch (ServiceLocatorException ex) {
throw new CommandException(ex);
}
}
}
Phew ...
Ok now that's the important parts from EJBClient. now onwards to the Web.war
I'm only pasting the part that actually runs and were it returns a nullpoint
public class ActionIdentitetKonsultCommand implements Command {
private static Logger logger = Logger.getLogger(ActionIdentitetKonsultCommand.class);
public ActionIdentitetKonsultCommand() {
}
public String execute(RequestContext requestContext) throws CommandException {
GetPersonByPersnrEJBCommand personCmd;
logger.info("execute()");
try {
UserBean user = (UserBean) requestContext.getSession().getAttribute("user");
String kstnr = requestContext.getParameter("kstnr");
//Tilldela konsultuppgifter
personCmd = new GetPersonByPersnrEJBCommand();
personCmd.setPersnr(user.getPersnr());
System.out.println("AI: Before execute DTO " + personCmd.dto);
personCmd.execute();
System.out.println("AI: After execute DTO " + personCmd.dto);
logger.info("person hamtad med personnummer (EJB):");
logger.info(personCmd.getPerson().toString());
So the personCmd.getPerson().tostring() is what causes the nullpointer. GetPersonByPersnrEJBCommand():
public class GetPersonByPersnrEJBCommand extends TargetableCommand implements TxNotSupported {
public PersonDTO dto;
private long persnr;
public GetPersonByPersnrEJBCommand() {
}
public void setPersnr(long persnr) {
this.persnr = persnr;
}
public PersonDTO getPerson() {
return this.dto;
}
public void performExecute() throws CommandException {
try {
QueryPersonByPersnrCommand cmd = new QueryPersonByPersnrCommand();
cmd.setPersnr(persnr);
cmd.execute();
if(cmd.next()){
this.dto = new PersonDTO();
System.out.println("GP: inside PerformExecute DTO: " + dto);
dto.setPersnr(cmd.getPersnr());
dto.setEfternamn(cmd.getEfternamn());
dto.setFornamn(cmd.getFornamn());
dto.setEpostAdress(cmd.getEpostAdress());
dto.setKonsult((cmd.getKonsult() == 1));
dto.setAnsvarig((cmd.getAnsvarig() == 1));
System.out.println("GP: Inside Perform Execute DTO: " + dto);
}
}
catch (DataAccessCommandException ex) {
System.out.println("GetPersonByPersnrEJBCommand.performExecute misslyckades " + ex.getMessage());
throw new CommandException(ex);
}
}
}
So that's it; I don't understand why it forgets it. when we do sysouts inside the last class we see that both the dto and the cmd has data in them, but once the function ends and we are back in the class that called on this the data is empty.
I'm suspecting its something to do with my session beans, I'm missing an property or something. because this code works with the old beans in the old JBOSS server. Hopefully someone can help me and others can learn from this as well as me.
I managed to solve this issue. Since the scope of the project is to get this to work. Its not a beautiful solution and with more time rewriting this would have been better. so onwards to the solution:
We need to change in both the bean, targetableCommand, CommandTarget and in the GetPersonByPersnrEJBCommand
TargetableCommand - add method:
public TargetableCommand execute(TargetableCommand cmd) throws CommandException
{
return CommandTarget.executeCommand(cmd);
}
CommandTarget - We change the method executeCommand to return a TargetableCommand, and make sure that after the bean is done we return that cmd.
public static TargetableCommand executeCommand(TargetableCommand cmd) throws CommandException {
Context context = null;
try {
context = JNDILookupClass.getInitialContext();
if (cmd instanceof TxRequired) {
TxRequiredCmdServerRemote cmdSrv = (TxRequiredCmdServerRemote)context.lookup(JNDILookupClass.getLookupName("TxRequiredCmdServerRemoteBean", TxRequiredCmdServerRemote.class.getName()));
cmd = cmdSrv.executeCommand(cmd);
}
else if(cmd instanceof TxNotSupported) {
TxNotSupportedCmdServerRemote cmdSrv = (TxNotSupportedCmdServerRemote)context.lookup(JNDILookupClass.getLookupName("TxNotSupportedCmdServerBean", TxNotSupportedCmdServerRemote.class.getName()));
cmd = cmdSrv.executeCommand(cmd);
}
else {
throw new CommandException("Cannot instanciate command server");
}
}
catch (CommandException ex) {
throw ex;
}
catch(NamingException ex) {
throw new CommandException(ex);
}
}
return cmd;
}
The bean - cange the method Execute command to return Targetablecommand
public TargetableCommand executeCommand(TargetableCommand cmd) throws CommandException {
try {
cmd = cmd.performExecute();
}
catch (CommandException ex) {
throw ex;
}
return cmd;
}
Then lastly to get it all to work I had to create a new method in the classes that needed to do the perform execute so in the GetPersonByPersnrEJBCommand class i created the method wf13Layer(); wich is a just an extra step:
public void wf13Layer() throws CommandException
{
GetPersonByPersnrEJBCommand tmp;
try{
tmp = (GetPersonByPersnrEJBCommand) execute(this);
dto = tmp.getPerson();
} catch (Exception ex) {
throw new CommandException(ex);
}
}
This is what i did to make it work. as i said its not a beautiful solution but it works. IT seems to be a combination that once we cross between the projects the scope vanishes. and to obtain it futher we need to layer it like this. I really hope this helps someone at some point since theres till alot of old code running around out there.
Kind regards
VeryTired
I have 2 problems.
1) Command handler not responding for EditorPart
2) How to pass argument to a class that extends "EditorPart" to affect "createPartControl" method for UI creation.
Please have a look below in my code for better understanding. I have created command handler for Editor but my handler is not responding as expected. I want to have the selected file path in the package explorer and pass this file path value to the class that extends EditorPart in order to create UI based on this selected file.
Handler.java
#Override
public Object execute(ExecutionEvent event) throws ExecutionException {
// get the page
IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindow(event);
IWorkbenchPage page = window.getActivePage();
// get the selection
ISelection selection = HandlerUtil.getCurrentSelection(event);
IStructuredSelection sel = (IStructuredSelection) selection;
Object selObj = sel.getFirstElement();
if (selObj instanceof IResource) {
resource = (IResource) selObj;
project = resource.getProject();
location = project.getLocation();
}else {
IAdaptable adaptable = (IAdaptable)selObj;
Object adapter = adaptable.getAdapter(IResource.class);
resource = (IResource) adapter;
project = resource.getProject();
location = project.getLocation();
}
TaskEditorInput input = new TaskEditorInput();
try {
page.openEditor(input, "launcher.ChartEditor");
} catch (PartInitException e) {
e.printStackTrace();
}
return null;
}
class that extends EditorPart
#Override
public void init(IEditorSite site, IEditorInput input) throws PartInitException {
setSite(site);
setInput(input);
setPartName("ChartEditor");
}
public void createPartControl(Composite _parent) {
}
public void createChart(String filePath) {
dataset = chart1.createDataset(filePath);
try {
chart = chart1.createChart(dataset);
frame = new ChartComposite(parent, SWT.NONE, chart, true);
frame.pack();
} catch (NumberFormatException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
I want pass the value of selected filepath in this createChart(String filePath) method from handler class. How can i do this? Please help me.
Add the value you want to pass to your class implementing IEditorInput (TaskEditorInput in your case). The editor input is given to the editor init method so you can get the value there:
#Override
public void init(IEditorSite site, IEditorInput input) throws PartInitException {
if (input instanceof TaskEditorInout) {
TaskEditorInput taskInput = (TaskEditorInput)input;
// TODO save value for createPartControl
}
setSite(site);
setInput(input);
setPartName("ChartEditor");
}
To be sure to get the resource corresponding to a selection you need to use the platform adapter manager. On modern versions of Eclipse you can use
IStructuredSelection sel = HandlerUtil.getCurrentStructuredSelection(event);
IResource resource = Adapters.adapt(sel.getFirstElement(), IResource.class);
I'm attempting to launch an Edit Customer Window with text fields filled with reference from the rows of a table. The Table and Dialog both have different controller classes.
Here's the code snippet from the table in question that gives us the required customerID when a user double clicks on a row.
Table Controller: CustomersController:
#Override
public void initialize(URL location, ResourceBundle resources) {
populateCustomerTable();
tableListeners(null);
}
void tableListeners(CustomerData customerData){
tblcustomer.setRowFactory(tr -> {
TableRow<CustomerData> row = new TableRow<>();
row.setOnMouseClicked(event -> {
if (event.getClickCount() == 2 && (!row.isEmpty())) {
int selectedCustomerID = row.getItem().getCustomerID();
System.out.println("A certain row: " + selectedCustomerID + " has been clicked!");
Stage stage = new Stage();
FXMLLoader loader = new FXMLLoader();
try {
Parent root = loader.load(getClass().getResource("../view/popups/edit_customer.fxml"));
stage.setScene(new Scene(root));
stage.setTitle("Editing Existing Customer's Details");
stage.initModality(Modality.APPLICATION_MODAL);
stage.initOwner(btnEditCustomer.getScene().getWindow());
stage.showAndWait();
} catch (IOException e) {
e.printStackTrace();
}
}
});
return row;
});
}
I want selectedCustomerID from the above piece of code to be parsed into the EditCustomerController class hence when the dialog launches, it's text fields should be prepoulated with values suppled from the select query that queries the database with the where condition being tht selectedCustomerID from the CustomersController class.
Code snippet from EditCustomerController class:
#Override
public void initialize(URL location, ResourceBundle resources) {
//populateEditCustomerFields(1);
}
void populateEditCustomerFields(int customerID){
this.customer_ID=customerID;
System.out.println(customer_ID);
try {
con = DatabaseConnection.getConnected();
stmt = con.createStatement();
rs = con.createStatement().executeQuery("SELECT * FROM `h_customers` WHERE `customerID`=" + customer_ID);
while (rs.next()) {
title.setText(rs.getString("title"));
firstName.setText(rs.getString("firstName"));
lastName.setText(rs.getString("lastName"));
nationalID.setText(String.valueOf(rs.getInt("nationalID")));
//dob.setText(rs.getString("DOB"));
mobilePhone.setText(rs.getString("mobilePhone"));
workPhone.setText(rs.getString("workPhone"));
email.setText(rs.getString("email"));
}
} catch (SQLException ex) {
Logger.getLogger(NewRoomController.class.getName()).log(Level.SEVERE, null, ex);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
The Idea here is to parse selectedCustomerID from CustomersController into the initialize method of EditCustomerController so the Dialog can launch with the customer details that require editing. I've searched for solutions all over the web and here on StackOverflow, some come close to answering me, some are too complex for my newbie mind, but none has helped. Any solution would be highly appreciated. I will provide any further clarification required.
You can get the controller class and invoke its necessary methods. See this answer for getting controller, then do
editCustomerController.populateEditCustomerFields(selectedCustomerID);
on table row double click.
Further to improve performance, you can load the edit_customer.fxml only once and when the user double clicks, refresh its rendered data with editCustomerController.populateEditCustomerFields(selectedCustomerID).
I am creating a Portlet project using Vaadin and Liferay6.0.
I need to upload a csv file from ui and read the file.
My class is as fllows:
#SuppressWarnings("serial")
public void init() {
Window window = new Window("Vaadin Portlet Application");
setMainWindow(window);
window.addComponent(new Label("Hello Vaadin user!"));
window.addComponent(new Label("We are here"));
final TextField tf = new TextField("Device Name:");
// Create the Upload component.
final Upload upload =
new Upload("Upload the file here", null);
// Use a custom button caption instead of plain "Upload".
upload.setButtonCaption("Upload Now");
try{
System.out.println("I am here only");
final DeviceManager dManager = new DeviceManager();
final DeviceSoap[] devices = dManager.getAll();
//getDeviceByName("207.20.47.137");
for (DeviceSoap deviceSoap : devices) {
window.addComponent(new Label("Device Name! "+deviceSoap.getName()));
}
window.addComponent(tf);
Button submitBttn = new Button("Add Device");
Button updateBttn = new Button("Update Device");
window.addComponent(submitBttn);
// Handle button clicks
submitBttn.addListener(new Button.ClickListener() {
#Override
public void buttonClick(ClickEvent event) {
// If the field value is bad, set its error.
// (Allow only alphanumeric characters.)
DeviceSoap d = new DeviceSoap();
d.setName(tf.getValue().toString());
try {
dManager.createDevice(d);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
updateBttn.addListener(new Button.ClickListener() {
#Override
public void buttonClick(ClickEvent event) {
// If the field value is bad, set its error.
// (Allow only alphanumeric characters.)
DeviceSoap d = devices[1];
d.setName(tf.getValue().toString());
try {
dManager.createDevice(d);
} catch (RemoteException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
upload.addListener((Upload.SucceededListener) this);
upload.addListener((Upload.FailedListener) this);
window.addComponent(upload);
}catch(Exception e){
e.printStackTrace();
}
}
Thanks
Hiamsnhu
I'm doing the same thing, and in reading your code, I see that you forgot making:
window.addComponent(updateBttn);
Hope this works.
I try to use get result from a api called j-calais, and then out put the result on a web page, i write all the code in client, but it cant compile right, dont know why??? please help. the source code like below:
there is no obvious error arise, but it cant be compile successfully..... thanks a lot:
public void onModuleLoad() {
// Create table for stock data.
stocksFlexTable.setText(0, 0, "Type");
stocksFlexTable.setText(0, 1, "Name");
// Assemble Add Stock panel.
addPanel.add(newSymbolTextBox);
addPanel.add(addStockButton);
// Assemble Main panel.
mainPanel.add(stocksFlexTable);
mainPanel.add(addPanel);
mainPanel.add(lastUpdatedLabel);
// Associate the Main panel with the HTML host page.
RootPanel.get("stockList").add(mainPanel);
// Move cursor focus to the input box.
newSymbolTextBox.setFocus(true);
// Listen for mouse events on the Add button.
addStockButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
try {
addStock();
} catch (Exception e) {
e.printStackTrace();
}
}
});
// Listen for keyboard events in the input box.
newSymbolTextBox.addKeyPressHandler(new KeyPressHandler() {
public void onKeyPress(KeyPressEvent event) {
if (event.getCharCode() == KeyCodes.KEY_ENTER) {
try {
addStock();
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
}
private void addStock() throws Exception {
final String url_s = newSymbolTextBox.getText().toUpperCase().trim();
newSymbolTextBox.setFocus(true);
newSymbolTextBox.setText("");
int row = stocksFlexTable.getRowCount();
CalaisClient client = new CalaisRestClient("ysw5rx69jkvdnzqf6sgjduqj");
System.out.print("read success...\n");
URL url = new URL(url_s);
CalaisResponse response = client.analyze(url);
for (CalaisObject entity : response.getEntities()) {
System.out.println(entity.getField("_type") + ":"
+ entity.getField("name"));
stocks.add(entity.getField("_type"));
stocksFlexTable.setText(row, 0, entity.getField("_type"));
stocksFlexTable.setText(row, 1, entity.getField("name"));
}
for (CalaisObject topic : response.getTopics()) {
System.out.println(topic.getField("categoryName"));
}
}
}
GWT only handles unchecked exceptions so you can throw Runtime Exceptions
or write your own Exception that extends from Runtime Exception then it will not cause any compile time problem
void f() throws NullPointerException // will not cause any problem because it is Runtime exception so unchecked
void f() throws IllegalAccessException // it is checked exception so there will be problem at compile time