Java tutorial
/* Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.activiti.explorer.ui.management.identity; import org.activiti.engine.IdentityService; import org.activiti.engine.ProcessEngines; import org.activiti.engine.identity.User; import org.activiti.explorer.ExplorerApp; import org.activiti.explorer.I18nManager; import org.activiti.explorer.Messages; import org.activiti.explorer.ui.custom.PopupWindow; import com.vaadin.data.Validator; import com.vaadin.data.Validator.InvalidValueException; import com.vaadin.data.validator.StringLengthValidator; import com.vaadin.event.Action; import com.vaadin.event.Action.Handler; import com.vaadin.event.ShortcutAction; import com.vaadin.ui.Alignment; import com.vaadin.ui.Button; import com.vaadin.ui.Button.ClickEvent; import com.vaadin.ui.Button.ClickListener; import com.vaadin.ui.Form; import com.vaadin.ui.HorizontalLayout; import com.vaadin.ui.PasswordField; import com.vaadin.ui.TextField; import com.vaadin.ui.themes.Reindeer; /** * Popup window to create a new user. * * @author Joram Barrez */ public class NewUserPopupWindow extends PopupWindow { private static final long serialVersionUID = 1L; protected transient IdentityService identityService; protected I18nManager i18nManager; protected Form form; public NewUserPopupWindow() { this.identityService = ProcessEngines.getDefaultProcessEngine().getIdentityService(); this.i18nManager = ExplorerApp.get().getI18nManager(); setCaption(i18nManager.getMessage(Messages.USER_CREATE)); setModal(true); center(); setResizable(false); setWidth(275, UNITS_PIXELS); setHeight(300, UNITS_PIXELS); addStyleName(Reindeer.WINDOW_LIGHT); initEnterKeyListener(); initForm(); } protected void initEnterKeyListener() { addActionHandler(new Handler() { public void handleAction(Action action, Object sender, Object target) { handleFormSubmit(); } public Action[] getActions(Object target, Object sender) { return new Action[] { new ShortcutAction("enter", ShortcutAction.KeyCode.ENTER, null) }; } }); } protected void initForm() { form = new Form(); form.setValidationVisibleOnCommit(true); form.setImmediate(true); addComponent(form); initInputFields(); initCreateButton(); } protected void initInputFields() { // Input fields form.addField("id", new TextField(i18nManager.getMessage(Messages.USER_ID))); // Set id field to required form.getField("id").setRequired(true); form.getField("id").setRequiredError(i18nManager.getMessage(Messages.USER_ID_REQUIRED)); form.getField("id").focus(); // Set id field to be unique form.getField("id").addValidator(new Validator() { public void validate(Object value) throws InvalidValueException { if (!isValid(value)) { throw new InvalidValueException(i18nManager.getMessage(Messages.USER_ID_UNIQUE)); } } public boolean isValid(Object value) { if (value != null) { return identityService.createUserQuery().userId(value.toString()).singleResult() == null; } return false; } }); // Password is required form.addField("password", new PasswordField(i18nManager.getMessage(Messages.USER_PASSWORD))); form.getField("password").setRequired(true); form.getField("password").setRequiredError(i18nManager.getMessage(Messages.USER_PASSWORD_REQUIRED)); // Password must be at least 5 characters StringLengthValidator passwordLengthValidator = new StringLengthValidator( i18nManager.getMessage(Messages.USER_PASSWORD_MIN_LENGTH, 5), 5, -1, false); form.getField("password").addValidator(passwordLengthValidator); form.addField("firstName", new TextField(i18nManager.getMessage(Messages.USER_FIRSTNAME))); form.addField("lastName", new TextField(i18nManager.getMessage(Messages.USER_LASTNAME))); form.addField("email", new TextField(i18nManager.getMessage(Messages.USER_EMAIL))); } protected void initCreateButton() { HorizontalLayout buttonLayout = new HorizontalLayout(); buttonLayout.setWidth(100, UNITS_PERCENTAGE); form.getFooter().setWidth(100, UNITS_PERCENTAGE); form.getFooter().addComponent(buttonLayout); Button createButton = new Button(i18nManager.getMessage(Messages.USER_CREATE)); buttonLayout.addComponent(createButton); buttonLayout.setComponentAlignment(createButton, Alignment.BOTTOM_RIGHT); createButton.addListener(new ClickListener() { public void buttonClick(ClickEvent event) { handleFormSubmit(); } }); } protected void handleFormSubmit() { try { // create user form.commit(); // will throw exception in case validation is false User user = createUser(); // close popup and navigate to fresh user close(); ExplorerApp.get().getViewManager().showUserPage(user.getId()); } catch (InvalidValueException e) { // Do nothing: the Form component will render the errormsgs automatically setHeight(340, UNITS_PIXELS); } } protected User createUser() { User user = identityService.newUser(form.getField("id").getValue().toString()); user.setPassword(form.getField("password").getValue().toString()); if (form.getField("firstName").getValue() != null) { user.setFirstName(form.getField("firstName").getValue().toString()); } if (form.getField("lastName").getValue() != null) { user.setLastName(form.getField("lastName").getValue().toString()); } if (form.getField("email").getValue() != null) { user.setEmail(form.getField("email").getValue().toString()); } identityService.saveUser(user); return user; } }