cdmlib-remote/src/main/java/eu/etaxonomy/cdm/remote/vaadin/components/LoginForm.java

   1 package eu.etaxonomy.cdm.remote.vaadin.components;
   2
   3 import java.io.Serializable;
   4
   5 import javax.annotation.PostConstruct;
   6
   7 import org.springframework.beans.factory.annotation.Autowired;
   8 import org.springframework.context.annotation.Scope;
   9 import org.springframework.security.core.AuthenticationException;
  10 import org.springframework.stereotype.Component;
  11
  12 import com.vaadin.data.validator.StringLengthValidator;
  13 import com.vaadin.event.ShortcutAction.KeyCode;
  14 import com.vaadin.server.Page;
  15 import com.vaadin.ui.Button;
  16 import com.vaadin.ui.Button.ClickEvent;
  17 import com.vaadin.ui.FormLayout;
  18 import com.vaadin.ui.Label;
  19 import com.vaadin.ui.Notification;
  20 import com.vaadin.ui.PasswordField;
  21 import com.vaadin.ui.TextField;
  22 import com.vaadin.ui.UI;
  23
  24 import eu.etaxonomy.cdm.remote.vaadin.service.VaadinAuthenticationService;
  25 import eu.etaxonomy.cdm.remote.vaadin.uiset.redlist.views.ClassificationSelectorView;
  26
  27 /**
  28  *
  29  *
  30  * Yet another component, which creates a simple login form layout. It makes use of the
  31  * AuthenticationController.
  32  *
  33  *
  34  * @author a.oppermann
  35  *
  36  */
  37
  38 @Component
  39 @Scope("prototype")
  40 public class LoginForm extends FormLayout implements Serializable{
  41
  42     /**
  43          * Automatically generated serial version ID
  44          */
  45         private static final long serialVersionUID = 8409330855620204572L;
  46
  47         private static final String COMMON_FIELD_WIDTH = "12em";
  48
  49         @Autowired
  50         private transient VaadinAuthenticationService authenticationController;
  51
  52
  53
  54
  55         private TextField userName;
  56         private PasswordField passwordField;
  57
  58
  59     @PostConstruct
  60         public void PostConstruct(){
  61                 // userName
  62                 userName = new TextField();
  63                 userName.setRequired(true);
  64                 userName.setRequiredError("Please enter a valid user name!");
  65                 userName.setCaption("Username");
  66                 userName.setImmediate(false);
  67         userName.addValidator(new StringLengthValidator("It must be 3-25 characters", 3, 25, false));
  68                 userName.setWidth(COMMON_FIELD_WIDTH);
  69                 userName.setNullRepresentation("");
  70                 userName.focus();
  71
  72                 // passwordField
  73                 passwordField = new PasswordField();
  74                 passwordField.setRequired(true);
  75                 passwordField.setRequiredError("Please enter a valid password!");
  76                 passwordField.addValidator(new StringLengthValidator("It must be 3-25 characters", 3, 25, false));
  77                 passwordField.setCaption("Password");
  78                 passwordField.setImmediate(false);
  79                 passwordField.setWidth(COMMON_FIELD_WIDTH);
  80
  81                 // sendButton
  82                 Button sendButton = new Button("Send", new Button.ClickListener() {
  83
  84                         /**
  85                          * Automatically generated serial version ID
  86                          */
  87                         private static final long serialVersionUID = -4423849632134093870L;
  88
  89                         @Override
  90                         public void buttonClick(ClickEvent event) {
  91                                 try{
  92                                         boolean isAuthenticated = authenticationController.authenticate(userName.getValue(), passwordField.getValue());
  93                                         if(isAuthenticated){
  94                                                 UI.getCurrent().getSession().setAttribute("isAuthenticated", isAuthenticated);
  95                                                 Page.getCurrent().setUriFragment("!"+ ClassificationSelectorView.NAME);//DashBoardView BfnView.NAME
  96                                         }
  97                                 }catch(AuthenticationException e){
  98                                         Notification.show("Bad credentials",Notification.Type.ERROR_MESSAGE);
  99                                 }
 100                         }
 101                 });
 102                 sendButton.setClickShortcut(KeyCode.ENTER, null);
 103                 sendButton.setCaption("Send");
 104                 sendButton.setImmediate(true);
 105
 106                 Label header = new Label("Vaaditor login...");
 107                 Label label = new Label("Bitte melden Sie sich mit Ihrem Benutzernamen und Passwort an.");
 108
 109                 header.setStyleName("h1");
 110
 111                 setSpacing(true);
 112                 setMargin(true);
 113                 setSizeUndefined();
 114
 115                 addComponent(header);
 116                 addComponent(label);
 117                 addComponent(userName);
 118                 addComponent(passwordField);
 119                 addComponent(sendButton);
 120         }
 121 }