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 oasis.names.tc.xacml._3_0.core.schema.wd_17.EffectType; import oasis.names.tc.xacml._3_0.core.schema.wd_17.RuleType; import org.apache.openaz.xacml.admin.XacmlAdminUI; import com.vaadin.annotations.AutoGenerated; import com.vaadin.data.Buffered.SourceException; import com.vaadin.data.Validator.InvalidValueException; 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.Label; import com.vaadin.ui.OptionGroup; import com.vaadin.ui.TextArea; import com.vaadin.ui.UI; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.Window; public class RuleEditorWindow extends Window { /*- VaadinEditorProperties={"grid":"RegularGrid,20","showGrid":true,"snapToGrid":true,"snapToObject":true,"movingGuides":false,"snappingDistance":10} */ @AutoGenerated private VerticalLayout mainLayout; @AutoGenerated private Button buttonSave; @AutoGenerated private TextArea textAreaDescription; @AutoGenerated private OptionGroup optionGroupEffect; @AutoGenerated private Label labelRuleID; /** * */ private static final long serialVersionUID = 1L; private final RuleEditorWindow self = this; private final RuleType rule; private boolean isSaved = false; /** * 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 RuleEditorWindow(RuleType rule) { buildMainLayout(); //setCompositionRoot(mainLayout); setContent(mainLayout); // // Save // this.rule = rule; // // Close shortcut // this.setCloseShortcut(KeyCode.ESCAPE); // // Initialize // this.initializeLabel(); this.initializeOption(); this.initializeText(); this.initializeButton(); } protected void initializeLabel() { if (this.rule.getRuleId() == null) { this.rule.setRuleId(((XacmlAdminUI) UI.getCurrent()).newRuleID()); } this.labelRuleID.setValue(this.rule.getRuleId()); } protected void initializeOption() { this.optionGroupEffect.setRequiredError("You MUST select an effect (Permit or Deny for the rule."); this.optionGroupEffect.addItem("Permit"); this.optionGroupEffect.addItem("Deny"); if (this.rule.getEffect() == null) { this.rule.setEffect(EffectType.PERMIT); } if (this.rule.getEffect() == EffectType.PERMIT) { this.optionGroupEffect.setValue("Permit"); } else { this.optionGroupEffect.setValue("Deny"); } } protected void initializeText() { this.textAreaDescription.setValue(this.rule.getDescription()); } protected void initializeButton() { this.buttonSave.addClickListener(new ClickListener() { private static final long serialVersionUID = 1L; @Override public void buttonClick(ClickEvent event) { try { // // Commit // self.optionGroupEffect.commit(); self.textAreaDescription.commit(); // // Save everything // if (self.optionGroupEffect.getValue() == "Permit") { self.rule.setEffect(EffectType.PERMIT); } else { self.rule.setEffect(EffectType.DENY); } self.rule.setDescription(self.textAreaDescription.getValue()); // // Set ourselves as saved // self.isSaved = true; // // Close the window // self.close(); } catch (SourceException | InvalidValueException e) { //NOPMD // // VAADIN will show the required error message to the user // } } }); } public boolean isSaved() { return this.isSaved; } public RuleType getRule() { return this.rule; } @AutoGenerated private VerticalLayout buildMainLayout() { // common part: create layout mainLayout = new VerticalLayout(); mainLayout.setImmediate(false); mainLayout.setWidth("-1px"); mainLayout.setHeight("-1px"); mainLayout.setMargin(true); mainLayout.setSpacing(true); // top-level component properties setWidth("-1px"); setHeight("-1px"); // labelRuleID labelRuleID = new Label(); labelRuleID.setCaption("Rule ID"); labelRuleID.setImmediate(false); labelRuleID.setWidth("100.0%"); labelRuleID.setHeight("-1px"); labelRuleID.setValue("Label"); mainLayout.addComponent(labelRuleID); mainLayout.setExpandRatio(labelRuleID, 1.0f); // optionGroupEffect optionGroupEffect = new OptionGroup(); optionGroupEffect.setCaption("Choose the effect."); optionGroupEffect.setImmediate(false); optionGroupEffect.setWidth("-1px"); optionGroupEffect.setHeight("-1px"); optionGroupEffect.setInvalidAllowed(false); optionGroupEffect.setRequired(true); mainLayout.addComponent(optionGroupEffect); // textAreaDescription textAreaDescription = new TextArea(); textAreaDescription.setCaption("Enter a description for the Rule."); textAreaDescription.setImmediate(false); textAreaDescription.setWidth("100.0%"); textAreaDescription.setHeight("-1px"); textAreaDescription.setNullSettingAllowed(true); textAreaDescription.setNullRepresentation(""); mainLayout.addComponent(textAreaDescription); mainLayout.setExpandRatio(textAreaDescription, 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; } }