Messing around with checking of required fields in nilus objects.

src/PamView/wizard/PamWizardCard.java

@@ -1,7 +1,5 @@
 package PamView.wizard;
 
-import java.io.Serializable;
-
 import javax.swing.JPanel;
 
 

src/help/utilities/tethys/docs/tethys_overview.html

@@ -63,14 +63,7 @@ img {
 		<a href="tethys_quickstart.html">Next: Quick Start</a>
 	</p>
 	<br>
-	<br>
-	<p>
-	  List of pages for this module:
-	</p>
-	<ol>
-	  <li> <a href="tehtys_quickstart.html">quick start</a> </li>
-	  <li> <a href="tethys_speciescodes.html">specifying species names</li>
-	</ol>
+
 
 </body>
 </html>

src/tethys/TethysControl.java

@@ -53,6 +53,7 @@ import tethys.output.TethysExportParams;
 import tethys.species.ITISFunctions;
 import tethys.species.SpeciesMapManager;
 import tethys.swing.ProjectDeploymentsDialog;
+import tethys.swing.TethysEnabler;
 import tethys.swing.TethysTabPanel;
 import tethys.swing.XMLStringView;
 import tethys.swing.documents.TethysDocumentsFrame;
@@ -91,10 +92,12 @@ public class TethysControl extends PamControlledUnit implements PamSettings, Tet
 	private CalibrationHandler calibrationHandler;
 	
 	private ITISFunctions itisFunctions;
+	private TethysEnabler tethysEnabler;
 
 	public TethysControl(String unitName) {
 		super(unitType, unitName);
 		stateObservers = new ArrayList();
+		tethysEnabler = new TethysEnabler(this);
 		dbxmlConnect = new DBXMLConnect(this);
 		dbxmlQueries = new DBXMLQueries(this, dbxmlConnect);
 		deploymentHandler = new DeploymentHandler(this);
@@ -494,6 +497,7 @@ public class TethysControl extends PamControlledUnit implements PamSettings, Tet
 			sendStateUpdate(new TethysState(StateType.UPDATESERVER));
 		}
 		lastServerStatus = serverState;
+		tethysEnabler.enableControls(serverState.ok);
 		return serverState;
 	}
 
@@ -699,5 +703,12 @@ public class TethysControl extends PamControlledUnit implements PamSettings, Tet
 		return calibrationHandler;
 	}
 
+	/**
+	 * Get a utility class that enables / disables controls depending on server state. 
+	 * @return
+	 */
+	public TethysEnabler getEnabler() {
+		return tethysEnabler;
+	}
 
 }

src/tethys/calibration/CalibrationHandler.java

@@ -1,5 +1,6 @@
 package tethys.calibration;
 
+import java.lang.reflect.Field;
 import java.text.DateFormat;
 import java.text.SimpleDateFormat;
 import java.util.ArrayList;
@@ -212,8 +213,10 @@ public class CalibrationHandler implements TethysStateObserver {
 //				}
 //			}
 			
-			
 			addParameterDetails(calDoc, i);
+			// run some checks of completeness of the data
+			NilusChecker.removeEmptyFields(calDoc);
+//			ArrayList<Field> emptyFields = NilusChecker.checkEmptyFields(calDoc);
 			
 			String calDocName = createDocumentName(calDoc, i);
 			exists = calDocumentExists(calDocName);

src/tethys/calibration/swing/CalibrationProcessCard.java

@@ -4,6 +4,8 @@ import java.awt.BorderLayout;
 import java.awt.Dimension;
 import java.awt.GridBagConstraints;
 import java.awt.GridBagLayout;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
 import java.util.List;
 
 import javax.swing.JComboBox;
@@ -15,6 +17,7 @@ import javax.swing.JTextArea;
 import javax.swing.JTextField;
 import javax.swing.border.TitledBorder;
 
+import PamView.dialog.PamDialog;
 import PamView.dialog.PamGridBagContraints;
 import PamView.panel.WestAlignedPanel;
 import PamView.wizard.PamWizard;
@@ -23,9 +26,17 @@ import nilus.AlgorithmType.Parameters;
 import nilus.AlgorithmType.SupportSoftware;
 import nilus.Calibration;
 import nilus.Calibration.QualityAssurance;
+import nilus.Helper;
 import nilus.QualityValueBasic;
 import tethys.calibration.CalibrationHandler;
+import tethys.niluswraps.NilusChecker;
 
+/**
+ * Calibrations Process card attempts to fill in the 
+ * calibration data for the Quality Assurance and Process fields. 
+ * @author dg50
+ *
+ */
 public class CalibrationProcessCard extends CalibrationsCard {
 	
 	private JPanel processPanel;
@@ -123,9 +134,13 @@ public class CalibrationProcessCard extends CalibrationsCard {
 		}
 		process.setMethod((String) calMethod.getSelectedItem());
 		process.setVersion(version.getText());
-		process.setSoftware(software.getText());
+		String soft = warnNotNull(getPamWizard(), software, "Calibration Method");
+		if (soft == null) {
+			return false;
+		}
+		process.setSoftware(soft);
 		if (software.getText() == null) {
-			getPamWizard().showWarning("You must specify the calibratin method used");
+			getPamWizard().showWarning("You must specify the calibration method used");
 		}
 		
 		QualityAssurance qa = calibration.getQualityAssurance();
@@ -133,7 +148,11 @@ public class CalibrationProcessCard extends CalibrationsCard {
 			qa = new QualityAssurance();
 			calibration.setQualityAssurance(qa);
 		}
-		qa.setComment(qaComment.getText());
+		String t = warnNotNull(getPamWizard(), qaComment, "QA Comment");
+		if (t == null) {
+			return false;
+		}
+		qa.setComment(t);
 		qa.setQuality(QualityValueBasic.fromValue((String) qaQuality.getSelectedItem()));
 		
 		// need to add a few fixed things for this to work...
@@ -142,11 +161,27 @@ public class CalibrationProcessCard extends CalibrationsCard {
 		if (params == null) {
 			params = new Parameters();
 			process.setParameters(params);
+//			params.getAny().
 		}
+		try {
+			Helper.createRequiredElements(params);
+		} catch (IllegalArgumentException | IllegalAccessException | InstantiationException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+		
+//		if (checkEmptyFields(qa) == false) {
+//			return false;
+//		}
+//		if (checkEmptyFields(process) == false) {
+////			return false;
+//		}
 		
 		return true;
 	}
 	
+
+
 	@Override
 	public void setParams(Calibration calibration) {
 		if (calibration == null) {

src/tethys/calibration/swing/CalibrationsCard.java

@@ -3,8 +3,9 @@ package tethys.calibration.swing;
 import PamView.wizard.PamWizard;
 import PamView.wizard.PamWizardCard;
 import nilus.Calibration;
+import tethys.swing.TethysWizardCard;
 
-abstract public class CalibrationsCard extends PamWizardCard<Calibration> {
+abstract public class CalibrationsCard extends TethysWizardCard<Calibration> {
 
 	public CalibrationsCard(PamWizard pamWizard, String title) {
 		super(pamWizard, title);

src/tethys/calibration/swing/CalibrationsContactCard.java

@@ -28,6 +28,7 @@ import nilus.MetadataInfo;
 import nilus.ResponsibleParty;
 import tethys.TethysTimeFuncs;
 import tethys.calibration.CalibrationHandler;
+import tethys.niluswraps.NilusChecker;
 import tethys.swing.export.ResponsiblePartyPanel;
 
 public class CalibrationsContactCard extends CalibrationsCard {
@@ -125,6 +126,11 @@ public class CalibrationsContactCard extends CalibrationsCard {
 		}
 		metaData.setContact(checkRPChildren(metaData.getContact()));
 		dataManager.getParams(metaData.getContact());
+		ResponsibleParty metaContact = metaData.getContact();
+		NilusChecker.removeEmptyFields(metaData);
+		if (metaData.getContact() == null) {
+			return PamDialog.showWarning(getPamWizard(), "Missing data", "The Data Manager fields must be completed");
+		}		
 		
 		metaData.setUpdateFrequency((String) updateInterval.getSelectedItem());
 		metaData.setDate(TethysTimeFuncs.xmlGregCalFromMillis(System.currentTimeMillis()));
@@ -136,6 +142,10 @@ public class CalibrationsContactCard extends CalibrationsCard {
 		long millis = date.getTime();
 		cardParams.setTimeStamp(TethysTimeFuncs.xmlGregCalFromMillis(millis));
 		
+		
+		checkEmptyFields(rp);
+		checkEmptyFields(metaData);
+		
 		return true;
 	}
 	

src/tethys/calibration/swing/CalibrationsMainPanel.java

@@ -41,6 +41,7 @@ public class CalibrationsMainPanel extends TethysGUIPanel {
 		
 		ctrlPanel = new PamPanel(new BorderLayout());
 		exportButton = new JButton("Export ...");
+		tethysControl.getEnabler().addComponent(exportButton);
 		ctrlPanel.add(BorderLayout.WEST, exportButton);
 		warning = new JLabel();
 		ctrlPanel.add(BorderLayout.CENTER, warning);

src/tethys/dbxml/DBXMLConnect.java

@@ -22,6 +22,7 @@ import tethys.Collection;
 import tethys.TethysControl;
 import tethys.database.TethysActions;
 import tethys.database.TethysLogger;
+import tethys.niluswraps.NilusChecker;
 import tethys.output.TethysExportParams;
 import tethys.reporter.TethysReport;
 import tethys.reporter.TethysReporter;
@@ -146,6 +147,9 @@ public class DBXMLConnect {
 	 */
 	public boolean postAndLog(Object nilusObject, String documentName) throws TethysException 
 	{	
+		boolean ok = NilusChecker.warnEmptyFields(tethysControl.getGuiFrame(), nilusObject);
+		
+		
 		TethysException e = null;
 		boolean success = false;
 		try {

src/tethys/niluswraps/NilusChecker.java

@@ -1,5 +1,6 @@
 package tethys.niluswraps;
 
+import java.awt.Window;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.Field;
 import java.lang.reflect.InvocationTargetException;
@@ -9,6 +10,7 @@ import java.util.List;
 
 import org.renjin.methods.Methods;
 
+import PamView.dialog.warn.WarnOnce;
 import nilus.Calibration;
 import nilus.Calibration.QualityAssurance;
 import nilus.Helper;
@@ -45,11 +47,32 @@ public class NilusChecker {
 		}
 	}
 	
-	public static ArrayList<Field> findEmptyFields(Object nilusObject) {
-		return findEmptyFields(nilusObject, new ArrayList<Field>());
+	public static boolean warnEmptyFields(Window owner, Object nilusObject) {
+		ArrayList<Field> emptyFields = findEmptyFields(nilusObject, true);
+		if (emptyFields == null || emptyFields.size() == 0) {
+			return true;
+		}
+		String msg = String.format("<html>One or more fields in the nilus object %s are required but empty:<br>", nilusObject.getClass().getName());
+		for (Field f : emptyFields) {
+			msg += String.format("<br>Field %s in object %s", f.getName(), f.getDeclaringClass().getName());
+		}
+		msg += "<br><br>It is likely that this document will fail to write to the Tethys database.</html>";
+		String tit = "Incomplete Tethys data";
+		WarnOnce.showWarning(owner, tit, msg, WarnOnce.WARNING_MESSAGE);
+		return false;
 	}
 	
-	public static ArrayList<Field> findEmptyFields(Object nilusObject, ArrayList<Field> found) {
+	/**
+	 * Find empty fields
+	 * @param nilusObject object to search
+	 * @param onlyRequired only list required fields. 
+	 * @return list of empty, and optionally also required, fields. 
+	 */
+	public static ArrayList<Field> findEmptyFields(Object nilusObject, boolean onlyRequired) {
+		return findEmptyFields(nilusObject, new ArrayList<Field>(), onlyRequired);
+	}
+	
+	private static ArrayList<Field> findEmptyFields(Object nilusObject, ArrayList<Field> found, boolean onlyRequired) {
 		if (nilusObject == null) {
 			return found;
 		}
@@ -64,26 +87,26 @@ public class NilusChecker {
 		for (int i = 0; i < fields.length; i++) {
 			Method getter = findGetter(fields[i], methods);
 			if (getter == null) {
-				System.out.printf("Unable to find getter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+//				System.out.printf("Unable to find getter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+				continue;
 			}
-//			if (setter == null) {
-//				System.out.printf("Unable to find setter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
-//			}
 			boolean required = isRequired(fields[i]);
 //			System.out.printf("Field %30s is %s required\n", fields[i].getName(), required ? "   " : "NOT");
 			Object gotObj = null;
 			try {
 				gotObj = getter.invoke(nilusObject, new Object[0]);
 			} catch (IllegalAccessException | InvocationTargetException e) {
-				System.out.printf("Unable to invoce getter %s on %s\n", getter.getName(), nilusObject);
+//				System.out.printf("Unable to invoce getter %s on %s\n", getter.getName(), nilusObject);
 				continue;
 			}
 			boolean empty = isEmpty(gotObj);
 			if (empty) {
-				found.add(fields[i]);
+				if (required || !onlyRequired) {
+					found.add(fields[i]);
+				}
 			}
 			else {
-				found = findEmptyFields(gotObj, found);
+				found = findEmptyFields(gotObj, found, onlyRequired);
 			}
 		}
 		return found;		
@@ -113,10 +136,12 @@ public class NilusChecker {
 			Method getter = findGetter(fields[i], methods);
 			Method setter = findSetter(fields[i], methods);
 			if (getter == null) {
-				System.out.printf("Unable to find getter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+//				System.out.printf("Unable to find getter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+				continue;
 			}
 			if (setter == null) {
-				System.out.printf("Unable to find setter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+//				System.out.printf("Unable to find setter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+				continue;
 			}
 			boolean required = isRequired(fields[i]);
 //			System.out.printf("Field %30s is %s required\n", fields[i].getName(), required ? "   " : "NOT");
@@ -124,13 +149,13 @@ public class NilusChecker {
 			try {
 				gotObj = getter.invoke(nilusObject, null);
 			} catch (IllegalAccessException | InvocationTargetException e) {
-				System.out.printf("Unable to invoce getter %s on %s\n", getter.getName(), nilusObject);
+//				System.out.printf("Unable to invoce getter %s on %s\n", getter.getName(), nilusObject);
 				continue;
 			}
 			boolean empty = isEmpty(gotObj);
-			if (empty && gotObj != null) {
+			if (empty && gotObj != null && canRemove(fields[i])) {
 				try {
-					System.out.printf("Removing empty field %s in object %s\n", fields[i].getName(), nilusObject);
+//					System.out.printf("Removing empty field %s in object %s\n", fields[i].getName(), nilusObject);
 //					Object args = new Object[1];
 					setter.invoke(nilusObject, new Object[1]);
 					removed++;
@@ -146,6 +171,32 @@ public class NilusChecker {
 		return removed;		
 	}
 	
+	/**
+	 * Fields that can be removed. 
+	 * @param field
+	 * @return
+	 */
+	private static boolean canRemove(Field field) {
+		if (field == null) {
+			return true;
+		}
+		Class fClass = field.getType();
+		if (fClass == String.class) {
+			return true;
+		}
+		if (List.class.isAssignableFrom(fClass)) {
+			return false;
+		}
+		if (fClass.isPrimitive()) {
+			return false;
+		}
+		String className = fClass.getCanonicalName();
+		if (className.contains("nilus.")) {
+			return true;
+		}
+		return false;
+	}
+
 	/**
 	 * Check an object for empty and required fields. 
 	 * @param nilusObject
@@ -179,10 +230,12 @@ public class NilusChecker {
 			Method getter = findGetter(fields[i], methods);
 			Method setter = findSetter(fields[i], methods);
 			if (getter == null) {
-				System.out.printf("Unable to find getter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+//				System.out.printf("Unable to find getter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+				continue;
 			}
 			if (setter == null) {
-				System.out.printf("Unable to find setter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+//				System.out.printf("Unable to find setter for field %s in %s\n", fields[i].getName(), nilusClass.getName());
+				continue;
 			}
 			boolean required = isRequired(fields[i]);
 //			System.out.printf("Field %30s is %s required\n", fields[i].getName(), required ? "   " : "NOT");
@@ -190,7 +243,7 @@ public class NilusChecker {
 			try {
 				gotObj = getter.invoke(nilusObject, null);
 			} catch (IllegalAccessException | InvocationTargetException e) {
-				System.out.printf("Unable to invoce getter %s on %s\n", getter.getName(), nilusObject);
+//				System.out.printf("Unable to invoce getter %s on %s\n", getter.getName(), nilusObject);
 				continue;
 			}
 			boolean empty = isEmpty(gotObj);
@@ -210,7 +263,7 @@ public class NilusChecker {
 	}
 	
 	/**
-	 * See if  afield has an annotation that indicates it's required. 
+	 * See if a field has an annotation that indicates it's required. 
 	 * @param field field
 	 * @return required
 	 */

src/tethys/species/swing/DataBlockSpeciesDialog.java

@@ -14,6 +14,7 @@ import javax.swing.border.TitledBorder;
 import PamController.PamController;
 import PamView.PamGui;
 import PamView.dialog.PamDialog;
+import PamView.panel.PamNorthPanel;
 import PamguardMVC.PamDataBlock;
 import tethys.species.SpeciesMapManager;
 
@@ -39,11 +40,11 @@ public class DataBlockSpeciesDialog extends PamDialog {
 		});
 		JPanel nPanel = new JPanel(new BorderLayout());
 		nPanel.setBorder(new TitledBorder("Code management"));
-		nPanel.add(BorderLayout.EAST, itisButton);
+		nPanel.add(BorderLayout.EAST, new PamNorthPanel(itisButton));
 		String otherMsg = 
 				"<html>Specify an ITIS taxonomic serial number (coding)."
 				+ "<br>Press the Find button to look up TSNs by Latin or common name.  "
-				+ "Anthropogenic signals should be coded as Homo sapiens (180092). "
+				+ "<br>Anthropogenic signals should be coded as Homo sapiens (180092). "
 				+ "<br>Noise Measurements and geophonic sounds should be coded as " 
 				+ "\"Other Phenomena\" (-10).  "
 				+ "<br>When known, a call or sound type should "
@@ -62,6 +63,7 @@ public class DataBlockSpeciesDialog extends PamDialog {
 		mainPanel.add(BorderLayout.NORTH, nPanel);
 		setDialogComponent(mainPanel);
 		setResizable(true);
+		setHelpPoint("utilities.tethys.docs.tethys_speciescodes");
 	}
 	
 	protected void gotoITIS() {

src/tethys/species/swing/SpeciesSearchDialog.java

@@ -78,6 +78,12 @@ public class SpeciesSearchDialog extends PamDialog {
 			}
 
 		});
+		searchText.addActionListener(new ActionListener() {
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				searchTethys();
+			}
+		});
 		
 		tableModel = new DataModel();
 		resultTable = new JTable(tableModel);

src/tethys/swing/DatablockSynchPanel.java

@@ -61,6 +61,7 @@ public class DatablockSynchPanel extends TethysGUIPanel {
 		mainPanel.add(BorderLayout.CENTER, scrollPane);
 		PamPanel ctrlPanel = new PamPanel(new BorderLayout());
 		exportButton = new JButton("Export ...");
+		tethysControl.getEnabler().addComponent(exportButton);
 		ctrlPanel.add(BorderLayout.WEST, exportButton);
 		mainPanel.add(BorderLayout.NORTH, ctrlPanel);
 

src/tethys/swing/DeploymentExportPanel.java

@@ -100,6 +100,7 @@ public class DeploymentExportPanel extends TethysGUIPanel implements DeploymentT
 		addPair("Set from ", projectDeployments, c);
 		
 		bigExportButton = new JButton("Export selection");
+		tethysControl.getEnabler().addComponent(bigExportButton);
 		bigExportButton.addActionListener(new ActionListener() {
 			@Override
 			public void actionPerformed(ActionEvent e) {

src/tethys/swing/DeploymentsPanel.java

@@ -57,6 +57,7 @@ public class DeploymentsPanel extends TethysGUIPanel implements DeploymentTableO
 		ctrlButtons.setLayout(new BoxLayout(ctrlButtons, BoxLayout.X_AXIS));
 		optionsButton = new JButton("Options ...");
 		exportButton = new JButton("Export ...");
+		tethysControl.getEnabler().addComponent(exportButton);
 		ctrlButtons.add(optionsButton);
 		ctrlButtons.add(exportButton);
 		ctrlPanel.add(BorderLayout.WEST, ctrlButtons);

src/tethys/swing/TethysEnabler.java

@@ -0,0 +1,56 @@
+package tethys.swing;
+
+import java.awt.Component;
+import java.util.ArrayList;
+
+import tethys.TethysControl;
+import tethys.TethysState;
+import tethys.TethysState.StateType;
+import tethys.TethysStateObserver;
+
+/**
+ * Handle enabling / disabling of any buttons / controls on the GUI. 
+ * @author dg50
+ *
+ */
+public class TethysEnabler implements TethysStateObserver {
+
+	private TethysControl tethysControl;
+	
+	private ArrayList<Component> components = new ArrayList<>();
+
+	/**
+	 * @param tethysControl
+	 */
+	public TethysEnabler(TethysControl tethysControl) {
+		this.tethysControl = tethysControl;
+		tethysControl.addStateObserver(this);
+	}
+	
+	/**
+	 * Add a component to the enable list. 
+	 * @param aComponent
+	 */
+	public synchronized void addComponent(Component aComponent) {
+		components.add(aComponent);
+	}
+	
+	public synchronized void removeComponent(Component aComponent) {
+		components.remove(aComponent);
+	}
+
+	@Override
+	public void updateState(TethysState tethysState) {
+//		if (tethysState.stateType == StateType.UPDATESERVER) {
+//			boolean ok = tethysControl.getDbxmlConnect().pingServer()
+//		}
+	}
+	
+	public synchronized void enableControls(boolean enable) {
+		for (Component c : components) {
+			c.setEnabled(enable);
+		}
+	}
+	
+	
+}

src/tethys/swing/TethysWizardCard.java

@@ -0,0 +1,80 @@
+package tethys.swing;
+
+import java.awt.Window;
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+
+import javax.swing.JTextField;
+import javax.swing.text.JTextComponent;
+
+import PamView.dialog.PamDialog;
+import PamView.dialog.warn.WarnOnce;
+import PamView.wizard.PamWizard;
+import PamView.wizard.PamWizardCard;
+import tethys.niluswraps.NilusChecker;
+
+/**
+ * Wizard card with a few extra functions for Tethys. 
+ * @author dg50
+ *
+ * @param <T>
+ */
+abstract public class TethysWizardCard<T extends Object> extends PamWizardCard<T> {
+
+	private static final long serialVersionUID = 1L;
+
+	public TethysWizardCard(PamWizard pamWizard, String title) {
+		super(pamWizard, title);
+	}
+	
+	/**
+	 * Get a string out of a text component, but if the field is
+	 * empty, return null rather than an empty, 0 length, string. 
+	 * @param textField
+	 * @return string, or null if it's empty. 
+	 */
+	public String getText(JTextComponent textField) {
+		String str = textField.getText();
+		if (str == null) {
+			return null;
+		}
+		if (str.length() == 0) {
+			return null;
+		}
+		return str;
+	}
+	
+	/**
+	 * Get a string from a text component, and warn if it is empty or null. 
+	 * @param owner parent window for warning
+	 * @param textComponent text component
+	 * @param name control name for warning text
+	 * @return String if there was one, or null if it was null or empty.
+	 */
+	public String warnNotNull(Window owner, JTextComponent textComponent, String name) {
+		String str = getText(textComponent);
+		if (str != null) {
+			return str;
+		}
+		String warn = String.format("The field %s cannot be empty", name);
+		PamDialog.showWarning(owner, "Empty or missing data", warn);
+		return null;
+	}
+	
+	/**
+	 * Check for required empty fields. 
+	 * @param nilusObject
+	 * @return true if all OK, false if there are required fields
+	 */
+	public boolean checkEmptyFields(Object nilusObject) {
+		NilusChecker.removeEmptyFields(nilusObject);
+		ArrayList<Field> emptyList = NilusChecker.checkEmptyFields(nilusObject);
+		if (emptyList.size() == 0) {
+			return true;
+		}
+		Field first = emptyList.get(0);
+		String msg = String.format("The field \"%s\" in \"%s\" is required by Tethys and must be completed", first.getName(), first.getDeclaringClass().getCanonicalName());
+		return PamDialog.showWarning(getPamWizard(), "Missing required data", msg);
+	}
+
+}