Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package rs.pupin.jpo.validation.gui.constraints; import com.vaadin.data.Property; import com.vaadin.shared.ui.label.ContentMode; import com.vaadin.ui.Button; import com.vaadin.ui.ComboBox; import com.vaadin.ui.Form; import com.vaadin.ui.HorizontalLayout; import com.vaadin.ui.Label; import com.vaadin.ui.ListSelect; import com.vaadin.ui.Notification; import com.vaadin.ui.Table; import com.vaadin.ui.VerticalLayout; import java.util.ArrayList; import java.util.Iterator; import org.openrdf.query.BindingSet; import org.openrdf.query.GraphQueryResult; import org.openrdf.query.QueryEvaluationException; import org.openrdf.query.TupleQueryResult; import org.openrdf.repository.Repository; import rs.pupin.jpo.validation.ValidationFixUtils; import rs.pupin.jpo.validation.ic.ICQuery; import rs.pupin.jpo.validation.ic.ICQuerySimple; /** * * @author vukm */ public class IC07 extends IntegrityConstraintComponent { public IC07(Repository repository, String graph, String owUrl) { super(repository, graph, owUrl); } @Override public String getName() { return "IC-7 Slice Keys must be declared"; } @Override public ICQuery generateICQuery() { StringBuilder strBuilder = new StringBuilder(); strBuilder.append("prefix qb: <http://purl.org/linked-data/cube#> \n"); strBuilder.append("select ?sliceKey \n"); strBuilder.append("from <").append(graph).append("> where { \n"); strBuilder.append(" ?sliceKey a qb:SliceKey . \n"); strBuilder.append(" FILTER NOT EXISTS { \n"); strBuilder.append(" ?dsd a qb:DataStructureDefinition . \n"); strBuilder.append(" ?dsd qb:sliceKey ?sliceKey . \n"); strBuilder.append(" } \n"); strBuilder.append("}"); return new ICQuerySimple(repository, strBuilder.toString()); } @Override public void generateGUI() { rootLayout.removeAllComponents(); final Iterator<BindingSet> res = icQuery.getResults(); if (icQuery.getStatus() == ICQuery.Status.ERROR) { Label label = new Label(); label.setValue("ERROR \n" + icQuery.getErrorMessage()); rootLayout.addComponent(label); return; } final ArrayList<String> listSliceKeys = new ArrayList<String>(); while (res.hasNext()) { BindingSet set = res.next(); listSliceKeys.add(set.getValue("sliceKey").stringValue()); } if (listSliceKeys.isEmpty()) { Label label = new Label(); label.setValue( "No problems were detected - either there are no slice keys or every slice key is associated with a DSD"); rootLayout.addComponent(label); return; } Label label = new Label(); label.setValue("Following slice keys should be associated with a DSD"); rootLayout.addComponent(label); final ListSelect lsSliceKeys = new ListSelect("Slice keys", listSliceKeys); lsSliceKeys.setImmediate(true); lsSliceKeys.setNullSelectionAllowed(false); rootLayout.addComponent(lsSliceKeys); final Table detailsTable = new Table("Slice key details"); detailsTable.setHeight("250px"); detailsTable.setWidth("100%"); detailsTable.addContainerProperty("Property", String.class, null); detailsTable.addContainerProperty("Object", String.class, null); rootLayout.addComponent(detailsTable); Form panelQuickFix = new Form(); panelQuickFix.setCaption("Quick Fix"); panelQuickFix.setSizeFull(); VerticalLayout panelLayout = new VerticalLayout(); panelLayout.setSpacing(true); panelLayout.setSizeFull(); panelQuickFix.setLayout(panelLayout); rootLayout.addComponent(panelQuickFix); rootLayout.setExpandRatio(panelQuickFix, 2.0f); Label fixLabel = new Label(); fixLabel.setContentMode(ContentMode.HTML); fixLabel.setValue( "After the fix, slice key chosen above will be associated with the DSD chosen below, or you can edit the slice key manually."); panelLayout.addComponent(fixLabel); final ComboBox comboDSDs = new ComboBox(); comboDSDs.setNullSelectionAllowed(false); comboDSDs.setWidth("100%"); comboDSDs.setImmediate(true); panelLayout.addComponent(comboDSDs); HorizontalLayout btnLayout = new HorizontalLayout(); btnLayout.setSpacing(true); Button editOW = new Button("Edit in OntoWiki"); editOW.setEnabled(owUrl != null); Button fix = new Button("Quick fix"); btnLayout.addComponent(fix); btnLayout.addComponent(editOW); panelLayout.addComponent(btnLayout); panelLayout.setExpandRatio(btnLayout, 2.0f); editOW.addClickListener(new Button.ClickListener() { @Override public void buttonClick(Button.ClickEvent event) { editManually((String) lsSliceKeys.getValue()); } }); lsSliceKeys.addValueChangeListener(new Property.ValueChangeListener() { @Override public void valueChange(Property.ValueChangeEvent event) { TupleQueryResult res = getResourceProperties((String) event.getProperty().getValue()); int i = 1; detailsTable.removeAllItems(); try { while (res.hasNext()) { BindingSet set = res.next(); detailsTable.addItem( new Object[] { set.getValue("p").stringValue(), set.getValue("o").stringValue() }, i++); } } catch (QueryEvaluationException e) { e.printStackTrace(); } } }); lsSliceKeys.addValueChangeListener(new Property.ValueChangeListener() { @Override public void valueChange(Property.ValueChangeEvent event) { String sk = event.getProperty().getValue().toString(); if (sk == null || sk.equalsIgnoreCase("")) { return; } TupleQueryResult resSliceKeys = executeTupleQuery( ValidationFixUtils.ic07_getMatchingDSDs(graph, sk)); comboDSDs.removeAllItems(); try { while (resSliceKeys.hasNext()) { comboDSDs.addItem(resSliceKeys.next().getValue("dsd").stringValue()); } } catch (QueryEvaluationException e) { e.printStackTrace(); } } }); fix.addClickListener(new Button.ClickListener() { @Override public void buttonClick(Button.ClickEvent event) { Object selVal = comboDSDs.getValue(); if (selVal == null) { Notification.show("No DSD was selected"); return; } GraphQueryResult fixRes = executeGraphQuery(ValidationFixUtils.ic07_insertConnection(graph, selVal.toString(), lsSliceKeys.getValue().toString())); if (fixRes != null) { Notification.show("Fix executed"); // evaluate again thereby also updating the GUI icQuery.eval(); } } }); } }