Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.openaz.xacml.admin.view.windows; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.vaadin.annotations.AutoGenerated; // import com.vaadin.data.Property.ValueChangeEvent; // import com.vaadin.data.Property.ValueChangeListener; import com.vaadin.data.Validator.InvalidValueException; import com.vaadin.data.validator.RegexpValidator; import com.vaadin.event.FieldEvents.TextChangeEvent; import com.vaadin.event.FieldEvents.TextChangeListener; import com.vaadin.event.ShortcutAction.KeyCode; 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.FormLayout; import com.vaadin.ui.TextField; import com.vaadin.ui.Window; public class SubDomainEditorWindow extends Window { /*- VaadinEditorProperties={"grid":"RegularGrid,20","showGrid":true,"snapToGrid":true,"snapToObject":true,"movingGuides":false,"snappingDistance":10} */ @AutoGenerated private FormLayout mainLayout; @AutoGenerated private Button buttonSave; @AutoGenerated private TextField textFieldSubdomain; // // Full domain pattern: // "^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9])(.([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9]))*$"; // // We just want one part of it. // private static final String SUBDOMAIN_NAME_PATTERN = "^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]{0,61}[a-zA-Z0-9])$"; private static final String ERROR_MESSAGE = "Either enter a single subdomain via RFC1123 - letters, digits and a hyphen. Cannot start or end with a hyphen."; private static final long serialVersionUID = 1L; private static final Log logger = LogFactory.getLog(SubDomainEditorWindow.class); private final SubDomainEditorWindow self = this; private boolean saved = false; private String subdomain = null; /** * The constructor should first build the main layout, set the * composition root and then do any custom initialization. * * The constructor will not be automatically regenerated by the * visual editor. */ public SubDomainEditorWindow(String subdomain) { buildMainLayout(); setContent(mainLayout); // // Save // this.subdomain = subdomain; // // Set our shortcuts // this.setCloseShortcut(KeyCode.ESCAPE); // // Initialize // this.initializeTextField(); this.initializeButtons(); // // Focus // this.textFieldSubdomain.focus(); } protected void initializeTextField() { this.textFieldSubdomain.setRequired(true); this.textFieldSubdomain.setRequiredError("Please enter a valid sub domain"); // // Validate the name entered // this.textFieldSubdomain.addValidator(new RegexpValidator(SUBDOMAIN_NAME_PATTERN, true, ERROR_MESSAGE) { private static final long serialVersionUID = 1L; }); // // Respond to events // this.textFieldSubdomain.setImmediate(true); this.textFieldSubdomain.addTextChangeListener(new TextChangeListener() { private static final long serialVersionUID = 1L; @Override public void textChange(TextChangeEvent event) { if (event.getText() != null && event.getText().length() > 0) { self.buttonSave.setEnabled(true); } else { self.buttonSave.setEnabled(false); } } }); } protected void initializeButtons() { this.buttonSave.setClickShortcut(KeyCode.ENTER); this.buttonSave.setEnabled(false); this.buttonSave.addClickListener(new ClickListener() { private static final long serialVersionUID = 1L; @Override public void buttonClick(ClickEvent event) { try { // // Make sure the text is valid // self.textFieldSubdomain.validate(); // // Parse our the subdomain parts // self.subdomain = self.textFieldSubdomain.getValue(); self.saved = true; // // Close it up // self.close(); } catch (InvalidValueException e) { logger.error(e); } } }); } public boolean isSaved() { return this.saved; } public String getSubDomain() { return this.subdomain; } @AutoGenerated private FormLayout buildMainLayout() { // common part: create layout mainLayout = new FormLayout(); mainLayout.setImmediate(false); mainLayout.setWidth("-1px"); mainLayout.setHeight("-1px"); mainLayout.setMargin(true); mainLayout.setSpacing(true); // top-level component properties setWidth("-1px"); setHeight("-1px"); // textFieldSubdomain textFieldSubdomain = new TextField(); textFieldSubdomain.setCaption("Enter Sub Domain"); textFieldSubdomain.setImmediate(false); textFieldSubdomain .setDescription("You can enter sub domain name - do not use spaces or wildcard characters."); textFieldSubdomain.setWidth("-1px"); textFieldSubdomain.setHeight("-1px"); textFieldSubdomain.setInvalidAllowed(false); textFieldSubdomain.setInputPrompt("Examples: sales hr business marketing."); mainLayout.addComponent(textFieldSubdomain); mainLayout.setExpandRatio(textFieldSubdomain, 1.0f); // buttonSave buttonSave = new Button(); buttonSave.setCaption("Save"); buttonSave.setImmediate(true); buttonSave.setWidth("-1px"); buttonSave.setHeight("-1px"); mainLayout.addComponent(buttonSave); mainLayout.setComponentAlignment(buttonSave, new Alignment(48)); return mainLayout; } }