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 java.util.Map; import oasis.names.tc.xacml._3_0.core.schema.wd_17.PolicyType; import oasis.names.tc.xacml._3_0.core.schema.wd_17.VariableDefinitionType; import oasis.names.tc.xacml._3_0.core.schema.wd_17.VariableReferenceType; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.vaadin.annotations.AutoGenerated; import com.vaadin.data.Buffered.SourceException; import com.vaadin.data.Property.ValueChangeEvent; import com.vaadin.data.Property.ValueChangeListener; import com.vaadin.data.Validator.InvalidValueException; 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.ListSelect; import com.vaadin.ui.TextField; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.Window; public class VariableReferenceEditorWindow 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 TextField textFieldVariable; @AutoGenerated private ListSelect listSelectVariables; /* * */ private static final long serialVersionUID = 1L; private static Log logger = LogFactory.getLog(VariableReferenceEditorWindow.class); private final VariableReferenceEditorWindow self = this; private final VariableReferenceType variable; 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 VariableReferenceEditorWindow(VariableReferenceType variable, Map<VariableDefinitionType, PolicyType> variables) { buildMainLayout(); //setCompositionRoot(mainLayout); setContent(mainLayout); // // Save parameters // this.variable = variable; // // Set our shortcuts // this.setCloseShortcut(KeyCode.ESCAPE); // // Initialize // this.initializeTextField(); this.initializeSelect(variables); this.initializeButtons(); // // Focus // this.textFieldVariable.focus(); } protected void initializeTextField() { this.textFieldVariable.setImmediate(true); this.textFieldVariable.setNullRepresentation(""); this.textFieldVariable.addTextChangeListener(new TextChangeListener() { private static final long serialVersionUID = 1L; @Override public void textChange(TextChangeEvent event) { if (event.getText() != null && event.getText().isEmpty() == false) { self.buttonSave.setEnabled(true); } else { self.buttonSave.setEnabled(false); } } }); this.textFieldVariable.addValueChangeListener(new ValueChangeListener() { private static final long serialVersionUID = 1L; @Override public void valueChange(ValueChangeEvent event) { String value = self.textFieldVariable.getValue(); if (value == null || value.isEmpty()) { self.buttonSave.setEnabled(false); } else { self.buttonSave.setEnabled(true); } } }); if (this.variable != null) { this.textFieldVariable.setValue(this.variable.getVariableId()); } } protected void initializeSelect(Map<VariableDefinitionType, PolicyType> vars) { // // Add existing variables into the table // if (vars != null) { for (VariableDefinitionType var : vars.keySet()) { this.listSelectVariables.addItem(var.getVariableId()); } } // // Respond to changes // this.listSelectVariables.setImmediate(true); this.listSelectVariables.addValueChangeListener(new ValueChangeListener() { private static final long serialVersionUID = 1L; @Override public void valueChange(ValueChangeEvent event) { Object value = self.listSelectVariables.getValue(); if (value != null) { self.textFieldVariable.setValue(value.toString()); } } }); } protected void initializeButtons() { this.buttonSave.setClickShortcut(KeyCode.ENTER); this.buttonSave.addClickListener(new ClickListener() { private static final long serialVersionUID = 1L; @Override public void buttonClick(ClickEvent event) { try { // // Commit // self.textFieldVariable.commit(); // // Now we can save // self.isSaved = true; self.variable.setVariableId(self.textFieldVariable.getValue()); // // And close the window // self.close(); } catch (SourceException | InvalidValueException e) { logger.error("Commit variable id: " + e); } } }); } public boolean isSaved() { return this.isSaved; } public VariableReferenceType getVariableReference() { return this.variable; } @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"); // listSelectVariables listSelectVariables = new ListSelect(); listSelectVariables.setCaption("Defined Variables"); listSelectVariables.setImmediate(false); listSelectVariables.setWidth("100.0%"); listSelectVariables.setHeight("-1px"); mainLayout.addComponent(listSelectVariables); mainLayout.setExpandRatio(listSelectVariables, 1.0f); // textFieldVariable textFieldVariable = new TextField(); textFieldVariable.setCaption("Variable"); textFieldVariable.setImmediate(false); textFieldVariable.setWidth("-1px"); textFieldVariable.setHeight("-1px"); textFieldVariable.setInvalidAllowed(false); textFieldVariable.setRequired(true); textFieldVariable.setInputPrompt("Eg. \"12345\" or \"myVariable1\""); mainLayout.addComponent(textFieldVariable); mainLayout.setExpandRatio(textFieldVariable, 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; } }