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package br.ufrj.ppgi.greco.kettle; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import org.eclipse.swt.SWT; |
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import org.eclipse.swt.custom.CTabFolder; |
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import org.eclipse.swt.custom.CTabItem; |
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import org.eclipse.swt.events.ModifyEvent; |
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import org.eclipse.swt.events.ModifyListener; |
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import org.eclipse.swt.events.SelectionAdapter; |
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import org.eclipse.swt.events.SelectionEvent; |
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import org.eclipse.swt.events.SelectionListener; |
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import org.eclipse.swt.events.ShellAdapter; |
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import org.eclipse.swt.events.ShellEvent; |
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import org.eclipse.swt.layout.FormAttachment; |
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import org.eclipse.swt.layout.FormData; |
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import org.eclipse.swt.layout.FormLayout; |
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import org.eclipse.swt.widgets.Button; |
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import org.eclipse.swt.widgets.Composite; |
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import org.eclipse.swt.widgets.Control; |
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import org.eclipse.swt.widgets.Display; |
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import org.eclipse.swt.widgets.Event; |
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import org.eclipse.swt.widgets.Label; |
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import org.eclipse.swt.widgets.List; |
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import org.eclipse.swt.widgets.Listener; |
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import org.eclipse.swt.widgets.Shell; |
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import org.eclipse.swt.widgets.Text; |
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import org.pentaho.di.core.Const; |
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import org.pentaho.di.core.row.ValueMetaInterface; |
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import org.pentaho.di.core.util.StringUtil; |
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import org.pentaho.di.i18n.BaseMessages; |
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import org.pentaho.di.trans.TransMeta; |
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import org.pentaho.di.trans.step.BaseStepMeta; |
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import org.pentaho.di.trans.step.StepDialogInterface; |
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import org.pentaho.di.ui.core.widget.ColumnInfo; |
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import org.pentaho.di.ui.core.widget.TableView; |
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import org.pentaho.di.ui.core.widget.TextVar; |
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import org.pentaho.di.ui.trans.step.BaseStepDialog; |
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import br.ufrj.ppgi.greco.kettle.plugin.tools.swthelper.SwtHelper; |
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public class SparqlStepDialog extends BaseStepDialog implements StepDialogInterface { |
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private static Class<?> PKG = SparqlStepMeta.class; |
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private SparqlStepMeta input; |
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private SwtHelper swthlp; |
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private String dialogTitle; |
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// TODO Adicionar variaveis dos widgets |
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private TextVar wEndpointUri; |
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private TextVar wDefaultGraph; |
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private Text wQueryString; |
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private TextVar wPrefixVar; |
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private List wList; |
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private Text wParserMessage; |
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private CTabFolder wTabFolder; |
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private TableView wPrefixes; |
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protected String[][] defaultPrefixes = { { "xsd", "http://www.w3.org/2001/XMLSchema#" }, |
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{ "rdfs", "http://www.w3.org/2000/01/rdf-schema#" }, |
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{ "rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#" }, { "owl", "http://www.w3.org/2002/07/owl#" }, |
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{ "dbpedia", "http://dbpedia.org/ontology/" }, { "dbpprop", "http://dbpedia.org/property/" }, |
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{ "dc", "http://purl.org/dc/elements/1.1/" }, { "foaf", "http://xmlns.com/foaf/0.1/" }, |
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{ "vcard", "http://www.w3.org/2006/vcard/ns#" }, { "cc", "http://creativecommons.org/ns#" }, |
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{ "skos", "http://www.w3.org/2004/02/skos/core#" } }; |
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public SparqlStepDialog(Shell parent, Object stepMeta, TransMeta transMeta, String stepname) { |
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super(parent, (BaseStepMeta) stepMeta, transMeta, stepname); |
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input = (SparqlStepMeta) baseStepMeta; |
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swthlp = new SwtHelper(transMeta, this.props); |
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// TODO: Additional initialization here |
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dialogTitle = BaseMessages.getString(PKG, "SparqlStep.Title"); |
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// ... |
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} |
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// TODO Criar widgets especificos da janela |
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private Control buildContents(Control lastControl, ModifyListener defModListener) { |
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wTabFolder = swthlp.appendTabFolder(shell, lastControl, 90); |
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// Create Tab |
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CTabItem item = new CTabItem(wTabFolder, SWT.NONE); |
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item.setText(BaseMessages.getString(PKG, "SparqlStep.Tab.SPARQL")); |
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Composite cpt = swthlp.appendComposite(wTabFolder, null); |
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wEndpointUri = swthlp.appendTextVarRow(cpt, null, BaseMessages.getString(PKG, "SparqlStep.Tab.SPARQL.Endpoint"), defModListener); |
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wDefaultGraph = swthlp.appendTextVarRow(cpt, wEndpointUri, BaseMessages.getString(PKG, "SparqlStep.Tab.SPARQL.Graph"), defModListener); |
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item.setControl(cpt); |
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// Create Tab |
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item = new CTabItem(wTabFolder, SWT.NONE); |
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item.setText(BaseMessages.getString(PKG, "SparqlStep.Tab.Prefix")); |
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ColumnInfo[] columns = new ColumnInfo[] { new ColumnInfo(BaseMessages.getString(PKG, "SparqlStep.Tab.Prefix.ColumnA"), ColumnInfo.COLUMN_TYPE_TEXT), |
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new ColumnInfo(BaseMessages.getString(PKG, "SparqlStep.Tab.Prefix.ColumnB"), ColumnInfo.COLUMN_TYPE_TEXT) }; |
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cpt = swthlp.appendComposite(wTabFolder, null); |
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wPrefixes = swthlp.appendTableView(cpt, null, columns, defModListener, 90); |
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swthlp.appendButtonsRow(cpt, wPrefixes, new String[] { BaseMessages.getString(PKG, "SparqlStep.Tab.Prefix.Clear"), BaseMessages.getString(PKG, "SparqlStep.Tab.Prefix.Default") }, |
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new SelectionListener[] { new SelectionListener() { |
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public void widgetSelected(SelectionEvent arg0) { |
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wPrefixes.removeAll(); |
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input.setChanged(); |
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} |
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public void widgetDefaultSelected(SelectionEvent arg0) { |
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input.setChanged(); |
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} |
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}, new SelectionListener() { |
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public void widgetSelected(SelectionEvent arg0) { |
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for (String[] row : defaultPrefixes) |
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wPrefixes.add(row); |
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} |
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public void widgetDefaultSelected(SelectionEvent arg0) { |
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input.setChanged(); |
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} |
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} }); |
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item.setControl(cpt); |
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// Create Tab |
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item = new CTabItem(wTabFolder, SWT.NONE); |
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item.setText(BaseMessages.getString(PKG, "SparqlStep.Tab.Query")); |
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cpt = swthlp.appendComposite(wTabFolder, null); |
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Label wLabel = swthlp.appendLabel(cpt, null, BaseMessages.getString(PKG, "SparqlStep.Tab.Query.Label")); |
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wQueryString = swthlp.appendMultiTextVarRow(cpt, wLabel, new ModifyListener() { |
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public void modifyText(ModifyEvent arg0) { |
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input.setChanged(); |
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wParserMessage.setText(""); |
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} |
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}, 55); |
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SelectionListener[] listeners = new SelectionListener[] { new SelectionListener() { |
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public void widgetSelected(SelectionEvent arg0) { |
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widgetDefaultSelected(arg0); |
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} |
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public void widgetDefaultSelected(SelectionEvent arg0) { |
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validateButton(); |
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} |
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} }; |
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Composite ctl = swthlp.appendButtonsRow(cpt, wQueryString, new String[] { BaseMessages.getString(PKG, "SparqlStep.Tab.Query.Validate") }, listeners); |
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wParserMessage = swthlp.appendMultiTextVarRow(cpt, ctl, defModListener, 100); |
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wParserMessage.setEditable(false); |
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item.setControl(cpt); |
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// Create Tab |
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item = new CTabItem(wTabFolder, SWT.NONE); |
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item.setText(BaseMessages.getString(PKG, "SparqlStep.Tab.Output")); |
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cpt = swthlp.appendComposite(wTabFolder, null); |
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wPrefixVar = swthlp.appendTextVarRow(cpt, null, BaseMessages.getString(PKG, "SparqlStep.Tab.Output.Field"), new ModifyListener() { |
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public void modifyText(ModifyEvent arg0) { |
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validateButton(); |
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} |
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}); |
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wList = swthlp.appendListRow(cpt, wPrefixVar, BaseMessages.getString(PKG, "SparqlStep.Tab.Output.FieldName"), new SelectionListener() { |
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public void widgetSelected(SelectionEvent arg0) { |
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} |
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public void widgetDefaultSelected(SelectionEvent arg0) { |
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} |
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}, 50); |
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wList.setEnabled(false); |
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/* |
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* listeners = new SelectionListener[] { new SelectionListener() { |
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* |
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* @Override public void widgetSelected(SelectionEvent arg0) { |
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* widgetDefaultSelected(arg0); } |
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* |
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* @Override public void widgetDefaultSelected(SelectionEvent arg0) { |
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* validateButton(); } } }; ctl = swthlp.appendButtonsRow( cpt, wList, |
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* new String [] { "Refazer" }, listeners); |
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*/ |
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item.setControl(cpt); |
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wTabFolder.setSelection(0); |
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// Return the last created control here |
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return wTabFolder; |
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} |
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private void validateButton() { |
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try { |
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String fullQueryStr = SparqlStepUtils.toFullQueryString(this.getListOfPrefixesFromTableView(), |
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wQueryString.getText()); |
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// update message |
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wParserMessage.setText(SparqlStepUtils.validateSparql(fullQueryStr)); |
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// update output variable list |
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wList.removeAll(); |
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java.util.List<ValueMetaInterface> outVars = SparqlStepUtils.generateOutputVars(wPrefixVar.getText(), |
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fullQueryStr); |
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if (outVars != null) { |
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for (int i = 0; i < outVars.size(); i++) { |
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ValueMetaInterface field = outVars.get(i); |
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wList.add(field.getName() + " : " + field.getTypeDesc()); |
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} |
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} |
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} catch (Throwable e) { |
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e.printStackTrace(); |
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} |
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} |
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// TODO Adicionar listeners para widgets tratarem Enter |
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// The will close the window affirmatively when the user press Enter in one |
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// of these text input fields |
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private void addSelectionListenerToControls(SelectionAdapter lsDef) { |
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wEndpointUri.addSelectionListener(lsDef); |
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wDefaultGraph.addSelectionListener(lsDef); |
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wPrefixVar.addSelectionListener(lsDef); |
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} |
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View Code Duplication |
public String open() { |
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Shell parent = getParent(); |
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Display display = parent.getDisplay(); |
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shell = new Shell(parent, SWT.DIALOG_TRIM | SWT.RESIZE | SWT.MIN | SWT.MAX); |
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props.setLook(shell); |
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setShellImage(shell, input); |
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// ModifyListener padrao |
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ModifyListener lsMod = new ModifyListener() { |
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public void modifyText(ModifyEvent e) { |
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input.setChanged(); |
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} |
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}; |
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boolean changed = input.hasChanged(); |
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FormLayout formLayout = new FormLayout(); |
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formLayout.marginWidth = Const.FORM_MARGIN; |
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formLayout.marginHeight = Const.FORM_MARGIN; |
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shell.setLayout(formLayout); |
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shell.setText(dialogTitle); |
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int middle = props.getMiddlePct(); |
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int margin = Const.MARGIN; |
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// Adiciona um label e um input text no topo do dialog shell |
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wlStepname = new Label(shell, SWT.RIGHT); |
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wlStepname.setText(BaseMessages.getString(PKG, "SparqlStep.StepNameField.Label")); |
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props.setLook(wlStepname); |
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fdlStepname = new FormData(); |
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fdlStepname.left = new FormAttachment(0, 0); |
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fdlStepname.right = new FormAttachment(middle, -margin); |
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fdlStepname.top = new FormAttachment(0, margin); |
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wlStepname.setLayoutData(fdlStepname); |
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wStepname = new Text(shell, SWT.SINGLE | SWT.LEFT | SWT.BORDER); |
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wStepname.setText(stepname); |
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props.setLook(wStepname); |
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wStepname.addModifyListener(lsMod); |
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fdStepname = new FormData(); |
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fdStepname.left = new FormAttachment(middle, 0); |
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fdStepname.top = new FormAttachment(0, margin); |
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fdStepname.right = new FormAttachment(100, 0); |
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wStepname.setLayoutData(fdStepname); |
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Control lastControl = wStepname; |
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// Chama metodo que adiciona os widgets especificos da janela |
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lastControl = buildContents(lastControl, lsMod); |
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// Bottom buttons |
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wOK = new Button(shell, SWT.PUSH); |
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wOK.setText(BaseMessages.getString(PKG, "SparqlStep.Btn.OK")); //$NON-NLS-1$ |
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wCancel = new Button(shell, SWT.PUSH); |
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wCancel.setText(BaseMessages.getString(PKG, "SparqlStep.Btn.Cancel")); //$NON-NLS-1$ |
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setButtonPositions(new Button[] { wOK, wCancel }, margin, lastControl); |
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// Add listeners |
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lsCancel = new Listener() { |
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public void handleEvent(Event e) { |
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cancel(); |
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} |
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}; |
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lsOK = new Listener() { |
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public void handleEvent(Event e) { |
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ok(); |
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} |
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}; |
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wCancel.addListener(SWT.Selection, lsCancel); |
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wOK.addListener(SWT.Selection, lsOK); |
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// It closes the window affirmatively when the user press enter in one |
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// of the text input fields |
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lsDef = new SelectionAdapter() { |
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public void widgetDefaultSelected(SelectionEvent e) { |
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ok(); |
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} |
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}; |
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wStepname.addSelectionListener(lsDef); |
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addSelectionListenerToControls(lsDef); |
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// Detect X or ALT-F4 or something that kills this window... |
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shell.addShellListener(new ShellAdapter() { |
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public void shellClosed(ShellEvent e) { |
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cancel(); |
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} |
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}); |
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// Populate the data of the controls |
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getData(); |
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// Set the shell size, based upon previous time... |
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setSize(); |
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input.setChanged(changed); |
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shell.open(); |
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while (!shell.isDisposed()) { |
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if (!display.readAndDispatch()) |
329
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|
|
display.sleep(); |
330
|
|
|
} |
331
|
|
|
return stepname; |
332
|
|
|
} |
333
|
|
|
|
334
|
|
View Code Duplication |
private void getData() { |
|
|
|
|
335
|
|
|
|
336
|
|
|
try { |
337
|
|
|
wStepname.selectAll(); |
338
|
|
|
|
339
|
|
|
// TODO Recuperar dados do StepMeta e adiciona na GUI |
340
|
|
|
String endpointUri = input.getEndpointUri(); |
341
|
|
|
if (endpointUri != null) |
342
|
|
|
wEndpointUri.setText(endpointUri); |
343
|
|
|
|
344
|
|
|
String defaultGraph = input.getDefaultGraph(); |
345
|
|
|
if (defaultGraph != null) |
346
|
|
|
wDefaultGraph.setText(defaultGraph); |
347
|
|
|
|
348
|
|
|
String queryStr = input.getQueryString(); |
349
|
|
|
if (queryStr != null) |
350
|
|
|
wQueryString.setText(queryStr); |
351
|
|
|
|
352
|
|
|
java.util.List<java.util.List<String>> prefixes = input.getPrefixes(); |
353
|
|
|
if (prefixes != null) { |
354
|
|
|
wPrefixes.removeAll(); |
355
|
|
|
|
356
|
|
|
for (java.util.List<String> list : prefixes) { |
357
|
|
|
wPrefixes.add(list.get(0), list.get(1)); |
358
|
|
|
} |
359
|
|
|
|
360
|
|
|
wPrefixes.remove(0); |
361
|
|
|
} |
362
|
|
|
|
363
|
|
|
String prefix = input.getVarPrefix(); |
364
|
|
|
if (prefix != null) |
365
|
|
|
wPrefixVar.setText(prefix); |
366
|
|
|
|
367
|
|
|
validateButton(); |
368
|
|
|
} catch (Throwable t) { |
369
|
|
|
|
370
|
|
|
} |
371
|
|
|
} |
372
|
|
|
|
373
|
|
|
protected void cancel() { |
374
|
|
|
stepname = null; |
375
|
|
|
input.setChanged(changed); |
376
|
|
|
dispose(); |
377
|
|
|
} |
378
|
|
|
|
379
|
|
|
protected void ok() { |
380
|
|
|
if (StringUtil.isEmpty(wStepname.getText())) |
381
|
|
|
return; |
382
|
|
|
|
383
|
|
|
stepname = wStepname.getText(); // return value |
384
|
|
|
|
385
|
|
|
// TODO Pegar dados da GUI e colocar no StepMeta |
386
|
|
|
input.setEndpointUri(wEndpointUri.getText()); |
387
|
|
|
input.setDefaultGraph(wDefaultGraph.getText()); |
388
|
|
|
input.setQueryString(wQueryString.getText()); |
389
|
|
|
|
390
|
|
|
try { |
391
|
|
|
input.setPrefixes(getListOfPrefixesFromTableView()); |
392
|
|
|
} catch (Exception e) { |
393
|
|
|
} |
394
|
|
|
|
395
|
|
|
input.setVarPrefix(wPrefixVar.getText()); |
396
|
|
|
|
397
|
|
|
// Fecha janela |
398
|
|
|
dispose(); |
399
|
|
|
} |
400
|
|
|
|
401
|
|
|
private java.util.List<java.util.List<String>> getListOfPrefixesFromTableView() { |
402
|
|
|
ArrayList<java.util.List<String>> prefixes = new ArrayList<java.util.List<String>>(); |
403
|
|
|
for (int iRow = 0; iRow < wPrefixes.getItemCount(); iRow++) { |
404
|
|
|
String[] row = wPrefixes.getItem(iRow); |
405
|
|
|
prefixes.add(Arrays.asList(row[0], row[1])); |
406
|
|
|
} |
407
|
|
|
return prefixes; |
408
|
|
|
} |
409
|
|
|
} |
410
|
|
|
|