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.MatchType; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.openaz.xacml.admin.XacmlAdminUI; import org.apache.openaz.xacml.admin.jpa.Attribute; import org.apache.openaz.xacml.admin.jpa.Datatype; import org.apache.openaz.xacml.admin.view.events.AttributeChangedEventListener; import com.vaadin.annotations.AutoGenerated; import com.vaadin.data.Buffered.SourceException; import com.vaadin.data.Item; import com.vaadin.data.Property; import com.vaadin.data.Property.ValueChangeEvent; import com.vaadin.data.Property.ValueChangeListener; import com.vaadin.data.Validator.InvalidValueException; import com.vaadin.data.util.filter.Compare; import com.vaadin.data.util.sqlcontainer.SQLContainer; import com.vaadin.event.ItemClickEvent; import com.vaadin.event.ItemClickEvent.ItemClickListener; 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.Table; import com.vaadin.ui.UI; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.Window; public class MatchEditorWindow extends Window implements AttributeChangedEventListener { /*- VaadinEditorProperties={"grid":"RegularGrid,20","showGrid":true,"snapToGrid":true,"snapToObject":true,"movingGuides":false,"snappingDistance":10} */ @AutoGenerated private VerticalLayout mainLayout; @AutoGenerated private Button buttonSave; @AutoGenerated private Table tableFunctions; /** * */ private static final long serialVersionUID = 1L; private static Log logger = LogFactory.getLog(MatchEditorWindow.class); private final MatchEditorWindow self = this; private final MatchType match; private final Datatype datatype; private boolean isSaved = false; private static SQLContainer matchFunctions = ((XacmlAdminUI) UI.getCurrent()).getMatchFunctionContainer(); private static String PROPERTY_SHORTNAME = "shortname"; private static String PROPERTY_XACMLID = "xacmlid"; private static String PROPERTY_ARG2_DATATYPE = "arg2_datatype"; static { // // H2 seems to insist on capitalizing, even with the no uppercase switch. // for (Object prop : MatchEditorWindow.matchFunctions.getContainerPropertyIds()) { logger.info("SQL Container Property Id: " + prop.toString()); if (prop.toString().equalsIgnoreCase(PROPERTY_SHORTNAME)) { PROPERTY_SHORTNAME = prop.toString(); } else if (prop.toString().equalsIgnoreCase(PROPERTY_XACMLID)) { PROPERTY_XACMLID = prop.toString(); } else if (prop.toString().equalsIgnoreCase(PROPERTY_ARG2_DATATYPE)) { PROPERTY_ARG2_DATATYPE = prop.toString(); } } } /** * 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 MatchEditorWindow(MatchType match, Datatype datatype) { buildMainLayout(); //setCompositionRoot(mainLayout); setContent(mainLayout); // // Save our data // this.match = match; this.datatype = datatype; // // Close shortcut // this.setCloseShortcut(KeyCode.ESCAPE); // // Initialize GUI // this.initializeFunctions(); this.initializeButtons(); // // Set our focus // this.tableFunctions.focus(); } protected void initializeFunctions() { // // Setup datasource and GUI properties // this.tableFunctions.setContainerDataSource(MatchEditorWindow.matchFunctions); this.tableFunctions.setImmediate(true); this.tableFunctions.setNullSelectionAllowed(false); this.tableFunctions.setRequired(true); this.tableFunctions.setRequiredError("Please select a function."); this.tableFunctions.setSelectable(true); this.tableFunctions.setPageLength(15); this.tableFunctions.setVisibleColumns(PROPERTY_SHORTNAME, PROPERTY_XACMLID); this.tableFunctions.setColumnHeaders(new String[] { "Short Function Name", "Xacml ID" }); // // Filter out functions where ARG2 is the given datatype. NOTE: The // AttributeDesignator/AttributeSelector is the 2nd argument. // MatchEditorWindow.matchFunctions.removeAllContainerFilters(); MatchEditorWindow.matchFunctions .addContainerFilter(new Compare.Equal(PROPERTY_ARG2_DATATYPE, this.datatype.getId())); // // Respond to selection events // this.tableFunctions.addValueChangeListener(new ValueChangeListener() { private static final long serialVersionUID = 1L; @Override public void valueChange(ValueChangeEvent event) { Object id = self.tableFunctions.getValue(); if (id != null) { Item item = MatchEditorWindow.matchFunctions.getItem(id); if (item == null) { return; } Property<?> property = item.getItemProperty(PROPERTY_XACMLID); if (property == null) { return; } self.match.setMatchId(property.getValue().toString()); self.buttonSave.setEnabled(true); } else { self.buttonSave.setEnabled(false); } } }); // // Respond to double-click events // this.tableFunctions.addItemClickListener(new ItemClickListener() { private static final long serialVersionUID = 1L; @Override public void itemClick(ItemClickEvent event) { if (event.isDoubleClick()) { self.doSave(); } } }); // // Default selection // this.buttonSave.setEnabled(false); if (this.match.getMatchId() != null) { for (Object id : MatchEditorWindow.matchFunctions.getItemIds()) { Item item = MatchEditorWindow.matchFunctions.getItem(id); if (item != null) { Property<?> property = item.getItemProperty(PROPERTY_XACMLID); if (property != null && property.getValue().toString().equals(this.match.getMatchId())) { this.tableFunctions.select(id); break; } } } } } protected void initializeButtons() { this.buttonSave.addClickListener(new ClickListener() { private static final long serialVersionUID = 1L; @Override public void buttonClick(ClickEvent event) { self.doSave(); } }); } protected void doSave() { try { // // Commit changes // self.tableFunctions.commit(); // // We are saved // self.isSaved = true; // // Close the window // self.close(); } catch (SourceException | InvalidValueException e) { return; } } @Override public void attributeChanged(Attribute attribute) { if (logger.isDebugEnabled()) { logger.debug("attributeChanged: " + attribute); } // // Remove all filters. // MatchEditorWindow.matchFunctions.removeAllContainerFilters(); if (attribute == null) { return; } // // Get the datatype for the attribute // Datatype datatype = attribute.getDatatypeBean(); if (logger.isDebugEnabled()) { logger.debug("datatype: " + datatype.getId()); } // // Filter out functions where ARG2 is the datatype. The // AttributeDesignator/AttributeSelector is the 2nd arg. // MatchEditorWindow.matchFunctions .addContainerFilter(new Compare.Equal(PROPERTY_ARG2_DATATYPE, datatype.getId())); } public boolean isSaved() { return this.isSaved; } public MatchType getMatch() { return this.match; } @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"); // tableFunctions tableFunctions = new Table(); tableFunctions.setCaption("Function"); tableFunctions.setImmediate(true); tableFunctions.setDescription("Select a function for matching the attribute."); tableFunctions.setWidth("100.0%"); tableFunctions.setHeight("-1px"); tableFunctions.setInvalidAllowed(false); tableFunctions.setRequired(true); mainLayout.addComponent(tableFunctions); mainLayout.setExpandRatio(tableFunctions, 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; } }