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.PolicyType; import org.apache.openaz.xacml.admin.XacmlAdminUI; import org.apache.openaz.xacml.admin.jpa.RuleAlgorithms; import org.apache.openaz.xacml.admin.util.JPAUtils; import org.apache.openaz.xacml.api.XACML3; import com.vaadin.addon.jpacontainer.JPAContainer; import com.vaadin.annotations.AutoGenerated; import com.vaadin.data.Buffered.SourceException; import com.vaadin.data.Validator.InvalidValueException; import com.vaadin.data.validator.RegexpValidator; import com.vaadin.event.ShortcutAction.KeyCode; import com.vaadin.ui.AbstractSelect.ItemCaptionMode; 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.ListSelect; import com.vaadin.ui.TextArea; import com.vaadin.ui.TextField; import com.vaadin.ui.UI; import com.vaadin.ui.VerticalLayout; import com.vaadin.ui.Window; public class PolicyEditorWindow 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 ListSelect listSelectAlgorithm; @AutoGenerated private TextField textFieldVersion; @AutoGenerated private Label labelID; /** * */ private static final long serialVersionUID = 1L; private final PolicyEditorWindow self = this; private final PolicyType policy; private JPAContainer<RuleAlgorithms> algorithms = ((XacmlAdminUI) UI.getCurrent()).getRuleAlgorithms(); 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 PolicyEditorWindow(PolicyType policy) { buildMainLayout(); //setCompositionRoot(mainLayout); setContent(mainLayout); // // Save // this.policy = policy; // // Close shortcut // this.setCloseShortcut(KeyCode.ESCAPE); // // Initialize GUI // this.initializeLabel(); this.initializeText(); this.initializeSelect(); this.initializeButton(); // // Focus // this.textAreaDescription.focus(); } protected void initializeLabel() { if (this.policy.getPolicyId() == null) { this.policy.setPolicyId(((XacmlAdminUI) UI.getCurrent()).newPolicyID()); } this.labelID.setValue(this.policy.getPolicyId()); } protected void initializeText() { // // // this.textAreaDescription.setNullRepresentation(""); this.textAreaDescription.setValue(this.policy.getDescription()); // // // if (this.policy.getVersion() == null) { this.policy.setVersion("1"); } this.textFieldVersion.setRequiredError("The exact format is: ((\\d+|\\*)\\.)*(\\d+|\\*|\\+)"); this.textFieldVersion.addValidator(new RegexpValidator("((\\d+|\\*)\\.)*(\\d+|\\*|\\+)", true, "The version MUST a number optionally separated by '.' eg. 1 or 1.0 or 1.1.1 etc.")); this.textFieldVersion.setValue(this.policy.getVersion()); } protected void initializeSelect() { this.listSelectAlgorithm.setContainerDataSource(this.algorithms); this.listSelectAlgorithm.setItemCaptionMode(ItemCaptionMode.PROPERTY); this.listSelectAlgorithm.setItemCaptionPropertyId("xacmlId"); this.listSelectAlgorithm.setNullSelectionAllowed(false); if (this.policy.getRuleCombiningAlgId() == null) { this.policy.setRuleCombiningAlgId(XACML3.ID_RULE_FIRST_APPLICABLE.stringValue()); } this.listSelectAlgorithm.setValue(JPAUtils.findRuleAlgorithm(this.policy.getRuleCombiningAlgId()).getId()); } protected void initializeButton() { this.buttonSave.addClickListener(new ClickListener() { private static final long serialVersionUID = 1L; @Override public void buttonClick(ClickEvent event) { try { // // Commit // self.listSelectAlgorithm.commit(); self.textFieldVersion.commit(); self.textAreaDescription.commit(); // // Save everything // self.policy.setDescription(self.textAreaDescription.getValue()); self.policy.setVersion(self.textFieldVersion.getValue()); Object id = self.listSelectAlgorithm.getValue(); self.policy.setRuleCombiningAlgId(algorithms.getItem(id).getEntity().getXacmlId()); // // Mark ourselves as saved // self.isSaved = true; // // Close 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 PolicyType getPolicySet() { return this.policy; } @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"); // labelID labelID = new Label(); labelID.setCaption("Policy Set ID"); labelID.setImmediate(false); labelID.setWidth("100.0%"); labelID.setHeight("-1px"); labelID.setValue("Label"); mainLayout.addComponent(labelID); // textFieldVersion textFieldVersion = new TextField(); textFieldVersion.setCaption("Version"); textFieldVersion.setImmediate(false); textFieldVersion.setDescription("The format is numbers only separated by decimal point."); textFieldVersion.setWidth("-1px"); textFieldVersion.setHeight("-1px"); textFieldVersion.setInvalidAllowed(false); textFieldVersion.setRequired(true); textFieldVersion.setInputPrompt("Eg. 1 or 1.0 or 1.0.0 etc."); mainLayout.addComponent(textFieldVersion); // listSelectAlgorithm listSelectAlgorithm = new ListSelect(); listSelectAlgorithm.setCaption("Policy Combining Algorithm"); listSelectAlgorithm.setImmediate(false); listSelectAlgorithm.setWidth("100.0%"); listSelectAlgorithm.setHeight("-1px"); listSelectAlgorithm.setInvalidAllowed(false); listSelectAlgorithm.setRequired(true); mainLayout.addComponent(listSelectAlgorithm); // textAreaDescription textAreaDescription = new TextArea(); textAreaDescription.setCaption("Description"); textAreaDescription.setImmediate(false); textAreaDescription.setWidth("100.0%"); textAreaDescription.setHeight("-1px"); 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; } }