/*
* Copyright 2011 JBoss Inc
*
* Licensed 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.drools.guvnor.client.decisiontable;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import com.google.gwt.user.client.ui.*;
import org.drools.guvnor.client.asseteditor.drools.modeldriven.ui.BindingTextBox;
import org.drools.guvnor.client.common.FormStylePopup;
import org.drools.guvnor.client.common.ImageButton;
import org.drools.guvnor.client.common.InfoPopup;
import org.drools.guvnor.client.common.SmallLabel;
import org.drools.guvnor.client.decisiontable.widget.DTCellValueUtilities;
import org.drools.guvnor.client.messages.Constants;
import org.drools.guvnor.client.resources.DroolsGuvnorImageResources;
import org.drools.guvnor.client.resources.DroolsGuvnorImages;
import org.drools.guvnor.client.resources.GuvnorImages;
import org.drools.ide.common.client.modeldriven.FieldAccessorsAndMutators;
import org.drools.ide.common.client.modeldriven.SuggestionCompletionEngine;
import org.drools.ide.common.client.modeldriven.dt52.ActionCol52;
import org.drools.ide.common.client.modeldriven.dt52.ActionInsertFactCol52;
import org.drools.ide.common.client.modeldriven.dt52.BRLRuleModel;
import org.drools.ide.common.client.modeldriven.dt52.DTCellValue52;
import org.drools.ide.common.client.modeldriven.dt52.DTDataTypes52;
import org.drools.ide.common.client.modeldriven.dt52.GuidedDecisionTable52;
import org.drools.ide.common.client.modeldriven.dt52.GuidedDecisionTable52.TableFormat;
import org.drools.ide.common.client.modeldriven.dt52.LimitedEntryActionInsertFactCol52;
import org.drools.ide.common.client.modeldriven.dt52.LimitedEntryCol;
import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.Window;
/**
* This is an editor for columns that are for inserting facts.
*/
public class ActionInsertFactPopup extends FormStylePopup {
private SmallLabel patternLabel = new SmallLabel();
private TextBox fieldLabel = getFieldLabel();
private SimplePanel limitedEntryValueWidgetContainer = new SimplePanel();
private int limitedEntryValueAttributeIndex = -1;
private TextBox valueListWidget = null;
private SimplePanel defaultValueWidgetContainer = new SimplePanel();
private int defaultValueWidgetContainerIndex = -1;
private final GuidedDecisionTable52 model;
private final SuggestionCompletionEngine sce;
private final DTCellValueWidgetFactory factory;
private final BRLRuleModel validator;
private final DTCellValueUtilities utilities;
private ActionInsertFactCol52 editingCol;
private final boolean isReadOnly;
public ActionInsertFactPopup(final SuggestionCompletionEngine sce,
final GuidedDecisionTable52 model,
final GenericColumnCommand refreshGrid,
final ActionInsertFactCol52 col,
final boolean isNew,
final boolean isReadOnly) {
this.validator = new BRLRuleModel( model );
this.editingCol = cloneActionInsertColumn( col );
this.model = model;
this.sce = sce;
this.isReadOnly = isReadOnly;
this.utilities = new DTCellValueUtilities( model,
sce );
//Set-up a factory for value editors
factory = DTCellValueWidgetFactory.getInstance( model,
sce,
isReadOnly,
allowEmptyValues() );
setTitle( Constants.INSTANCE.ActionColumnConfigurationInsertingANewFact() );
setModal( false );
//Fact being inserted
HorizontalPanel pattern = new HorizontalPanel();
pattern.add( patternLabel );
doPatternLabel();
ImageButton changePattern = createChangePatternButton();
changePattern.setEnabled( !isReadOnly );
pattern.add( changePattern );
addAttribute( Constants.INSTANCE.Pattern(),
pattern );
//Fact field being set
HorizontalPanel field = new HorizontalPanel();
fieldLabel.setEnabled( !isReadOnly );
field.add( fieldLabel );
ImageButton editField = createEditFieldButton();
editField.setEnabled( !isReadOnly );
field.add( editField );
addAttribute( Constants.INSTANCE.Field(),
field );
doFieldLabel();
//Column header
final TextBox header = new TextBox();
header.setText( col.getHeader() );
header.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
header.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setHeader( header.getText() );
}
} );
}
addAttribute( Constants.INSTANCE.ColumnHeaderDescription(),
header );
//Optional value list
if ( model.getTableFormat() == TableFormat.EXTENDED_ENTRY ) {
valueListWidget = new TextBox();
valueListWidget.setText( editingCol.getValueList() );
valueListWidget.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
//Copy value back to model
valueListWidget.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setValueList( valueListWidget.getText() );
}
} );
//Update Default Value widget if necessary
valueListWidget.addBlurHandler( new BlurHandler() {
public void onBlur(BlurEvent event) {
assertDefaultValue();
makeDefaultValueWidget();
}
private void assertDefaultValue() {
final List<String> valueList = Arrays.asList( model.getValueList( editingCol ) );
if ( valueList.size() > 0 ) {
final String defaultValue = utilities.asString( editingCol.getDefaultValue() );
if ( !valueList.contains( defaultValue ) ) {
editingCol.getDefaultValue().clearValues();
}
} else {
//Ensure the Default Value has been updated to represent the column's data-type.
final DTCellValue52 defaultValue = editingCol.getDefaultValue();
final DTDataTypes52 dataType = utilities.getDataType( editingCol );
utilities.assertDTCellValue( dataType,
defaultValue );
}
}
} );
}
HorizontalPanel vl = new HorizontalPanel();
vl.add( valueListWidget );
vl.add( new InfoPopup( Constants.INSTANCE.ValueList(),
Constants.INSTANCE.ValueListsExplanation() ) );
addAttribute( Constants.INSTANCE.optionalValueList(),
vl );
}
doValueList();
//Default Value
if ( model.getTableFormat() == TableFormat.EXTENDED_ENTRY ) {
defaultValueWidgetContainerIndex = addAttribute( Constants.INSTANCE.DefaultValue(),
defaultValueWidgetContainer );
makeDefaultValueWidget();
}
//Limited entry value widget
if ( model.getTableFormat() == TableFormat.LIMITED_ENTRY ) {
limitedEntryValueAttributeIndex = addAttribute( Constants.INSTANCE.LimitedEntryValue(),
limitedEntryValueWidgetContainer );
makeLimitedValueWidget();
}
//Logical insertion
addAttribute( Constants.INSTANCE.LogicallyInsertColon(),
doInsertLogical() );
//Hide column tick-box
addAttribute( Constants.INSTANCE.HideThisColumn(),
DTCellValueWidgetFactory.getHideColumnIndicator( editingCol ) );
Button apply = new Button( Constants.INSTANCE.ApplyChanges() );
apply.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
if ( !isValidFactType() ) {
Window.alert( Constants.INSTANCE.YouMustEnterAColumnPattern() );
return;
}
if ( !isValidFactField() ) {
Window.alert( Constants.INSTANCE.YouMustEnterAColumnField() );
return;
}
if ( null == editingCol.getHeader() || "".equals( editingCol.getHeader() ) ) {
Window.alert( Constants.INSTANCE.YouMustEnterAColumnHeaderValueDescription() );
return;
}
if ( isNew ) {
if ( !unique( editingCol.getHeader() ) ) {
Window.alert( Constants.INSTANCE.ThatColumnNameIsAlreadyInUsePleasePickAnother() );
return;
}
} else {
if ( !col.getHeader().equals( editingCol.getHeader() ) ) {
if ( !unique( editingCol.getHeader() ) ) {
Window.alert( Constants.INSTANCE.ThatColumnNameIsAlreadyInUsePleasePickAnother() );
return;
}
}
}
// Pass new\modified column back for handling
refreshGrid.execute( editingCol );
hide();
}
} );
addAttribute( "",
apply );
}
private ImageButton createEditFieldButton() {
Image edit = GuvnorImages.INSTANCE.Edit();
edit.setAltText(Constants.INSTANCE.EditTheFieldThatThisColumnOperatesOn());
Image editDisabled = DroolsGuvnorImages.INSTANCE.EditDisabled();
editDisabled.setAltText(Constants.INSTANCE.EditTheFieldThatThisColumnOperatesOn());
return new ImageButton( edit,
editDisabled,
Constants.INSTANCE.EditTheFieldThatThisColumnOperatesOn(),
new ClickHandler() {
public void onClick(ClickEvent w) {
showFieldChange();
}
} );
}
private ImageButton createChangePatternButton() {
Image edit = GuvnorImages.INSTANCE.Edit();
edit.setAltText(Constants.INSTANCE.ChooseAPatternThatThisColumnAddsDataTo());
Image editDisabled = DroolsGuvnorImages.INSTANCE.EditDisabled();
editDisabled.setAltText(Constants.INSTANCE.ChooseAPatternThatThisColumnAddsDataTo());
return new ImageButton( edit,
editDisabled,
Constants.INSTANCE.ChooseAPatternThatThisColumnAddsDataTo(),
new ClickHandler() {
public void onClick(ClickEvent w) {
showChangePattern( w );
}
} );
}
private boolean allowEmptyValues() {
return this.model.getTableFormat() == TableFormat.EXTENDED_ENTRY;
}
private ActionInsertFactCol52 cloneActionInsertColumn(ActionInsertFactCol52 col) {
ActionInsertFactCol52 clone = null;
if ( col instanceof LimitedEntryActionInsertFactCol52 ) {
clone = new LimitedEntryActionInsertFactCol52();
DTCellValue52 dcv = cloneLimitedEntryValue( ((LimitedEntryCol) col).getValue() );
((LimitedEntryCol) clone).setValue( dcv );
} else {
clone = new ActionInsertFactCol52();
}
clone.setBoundName( col.getBoundName() );
clone.setType( col.getType() );
clone.setFactField( col.getFactField() );
clone.setFactType( col.getFactType() );
clone.setHeader( col.getHeader() );
clone.setValueList( col.getValueList() );
clone.setDefaultValue( new DTCellValue52( col.getDefaultValue() ) );
clone.setHideColumn( col.isHideColumn() );
clone.setInsertLogical( col.isInsertLogical() );
return clone;
}
private DTCellValue52 cloneLimitedEntryValue(DTCellValue52 dcv) {
if ( dcv == null ) {
return null;
}
DTCellValue52 clone = new DTCellValue52( dcv );
return clone;
}
private void makeLimitedValueWidget() {
if ( !(editingCol instanceof LimitedEntryActionInsertFactCol52) ) {
return;
}
if ( nil( editingCol.getFactField() ) ) {
setAttributeVisibility( limitedEntryValueAttributeIndex,
false );
return;
}
LimitedEntryActionInsertFactCol52 lea = (LimitedEntryActionInsertFactCol52) editingCol;
setAttributeVisibility( limitedEntryValueAttributeIndex,
true );
if ( lea.getValue() == null ) {
lea.setValue( factory.makeNewValue( editingCol ) );
}
limitedEntryValueWidgetContainer.setWidget( factory.getWidget( editingCol,
lea.getValue() ) );
}
private void makeDefaultValueWidget() {
if ( model.getTableFormat() == TableFormat.LIMITED_ENTRY ) {
return;
}
if ( nil( editingCol.getFactField() ) ) {
setAttributeVisibility( defaultValueWidgetContainerIndex,
false );
return;
}
setAttributeVisibility( defaultValueWidgetContainerIndex,
true );
if ( editingCol.getDefaultValue() == null ) {
editingCol.setDefaultValue( factory.makeNewValue( editingCol ) );
}
//Ensure the Default Value has been updated to represent the column's
//data-type. Legacy Default Values are all String-based and need to be
//coerced to the correct type
final DTCellValue52 defaultValue = editingCol.getDefaultValue();
final DTDataTypes52 dataType = utilities.getDataType( editingCol );
utilities.assertDTCellValue( dataType,
defaultValue );
defaultValueWidgetContainer.setWidget( factory.getWidget( editingCol,
defaultValue ) );
}
private void doFieldLabel() {
if ( nil( this.editingCol.getFactField() ) ) {
fieldLabel.setText( Constants.INSTANCE.pleaseChooseFactType() );
} else {
fieldLabel.setText( editingCol.getFactField() );
}
}
private void doPatternLabel() {
if ( this.editingCol.getFactType() != null ) {
this.patternLabel.setText( this.editingCol.getFactType()
+ " ["
+ editingCol.getBoundName()
+ "]" );
}
}
private void doValueList() {
if ( model.getTableFormat() == TableFormat.LIMITED_ENTRY ) {
return;
}
//Don't show a Value List if either the Fact\Field is empty
final String factType = editingCol.getFactType();
final String factField = editingCol.getFactField();
boolean enableValueList = !((factType == null || "".equals( factType )) || (factField == null || "".equals( factField )));
//Don't show a Value List if the Fact\Field has an enumeration
if ( enableValueList ) {
enableValueList = !sce.hasEnums( factType,
factField );
}
valueListWidget.setEnabled( enableValueList );
if ( !enableValueList ) {
valueListWidget.setText( "" );
}
}
private TextBox getFieldLabel() {
final TextBox box = new TextBox();
box.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setFactField( box.getText() );
}
} );
return box;
}
private ListBox loadPatterns() {
Set<String> vars = new HashSet<String>();
ListBox patterns = new ListBox();
for ( Object o : model.getActionCols() ) {
ActionCol52 col = (ActionCol52) o;
if ( col instanceof ActionInsertFactCol52 ) {
ActionInsertFactCol52 c = (ActionInsertFactCol52) col;
if ( !vars.contains( c.getBoundName() ) ) {
patterns.addItem( c.getFactType()
+ " ["
+ c.getBoundName()
+ "]",
c.getFactType()
+ " "
+ c.getBoundName() );
vars.add( c.getBoundName() );
}
}
}
return patterns;
}
private boolean nil(String s) {
return s == null || s.equals( "" );
}
private void showFieldChange() {
final FormStylePopup pop = new FormStylePopup();
pop.setModal( false );
String[] fields = this.sce.getFieldCompletions( FieldAccessorsAndMutators.MUTATOR,
this.editingCol.getFactType() );
final ListBox box = new ListBox();
for ( int i = 0; i < fields.length; i++ ) {
box.addItem( fields[i] );
}
pop.addAttribute( Constants.INSTANCE.Field(),
box );
Button b = new Button( Constants.INSTANCE.OK() );
pop.addAttribute( "",
b );
b.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
editingCol.setFactField( box.getItemText( box.getSelectedIndex() ) );
editingCol.setType( sce.getFieldType( editingCol.getFactType(),
editingCol.getFactField() ) );
makeLimitedValueWidget();
makeDefaultValueWidget();
doValueList();
doFieldLabel();
pop.hide();
}
} );
pop.show();
}
private boolean unique(String header) {
for ( ActionCol52 o : model.getActionCols() ) {
if ( o.getHeader().equals( header ) ) return false;
}
return true;
}
protected void showChangePattern(ClickEvent w) {
final ListBox pats = this.loadPatterns();
if ( pats.getItemCount() == 0 ) {
showNewPatternDialog();
return;
}
final FormStylePopup pop = new FormStylePopup();
Button ok = new Button( "OK" );
HorizontalPanel hp = new HorizontalPanel();
hp.add( pats );
hp.add( ok );
pop.addAttribute( Constants.INSTANCE.ChooseExistingPatternToAddColumnTo(),
hp );
pop.addAttribute( "",
new HTML( Constants.INSTANCE.ORwithEmphasis() ) );
Button createPattern = new Button( Constants.INSTANCE.CreateNewFactPattern() );
createPattern.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
pop.hide();
showNewPatternDialog();
}
} );
pop.addAttribute( "",
createPattern );
ok.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
String[] val = pats.getValue( pats.getSelectedIndex() ).split( "\\s" ); // NON-NLS
editingCol.setFactType( val[0] );
editingCol.setBoundName( val[1] );
editingCol.setFactField( null );
makeLimitedValueWidget();
makeDefaultValueWidget();
doPatternLabel();
doFieldLabel();
doValueList();
pop.hide();
}
} );
pop.show();
}
protected void showNewPatternDialog() {
final FormStylePopup pop = new FormStylePopup();
pop.setTitle( Constants.INSTANCE.NewFactSelectTheType() );
final ListBox types = new ListBox();
for ( int i = 0; i < sce.getFactTypes().length; i++ ) {
types.addItem( sce.getFactTypes()[i] );
}
pop.addAttribute( Constants.INSTANCE.FactType(),
types );
final TextBox binding = new BindingTextBox();
pop.addAttribute( Constants.INSTANCE.Binding(),
binding );
Button ok = new Button( Constants.INSTANCE.OK() );
ok.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
//Validate column configuration
String ft = types.getItemText( types.getSelectedIndex() );
String fn = binding.getText();
if ( fn.equals( "" ) ) {
Window.alert( Constants.INSTANCE.PleaseEnterANameForFact() );
return;
} else if ( fn.equals( ft ) ) {
Window.alert( Constants.INSTANCE.PleaseEnterANameThatIsNotTheSameAsTheFactType() );
return;
} else if ( !isBindingUnique( fn ) ) {
Window.alert( Constants.INSTANCE.PleaseEnterANameThatIsNotAlreadyUsedByAnotherPattern() );
return;
}
//Configure column
editingCol.setBoundName( binding.getText() );
editingCol.setFactType( types.getItemText( types.getSelectedIndex() ) );
editingCol.setFactField( null );
makeLimitedValueWidget();
makeDefaultValueWidget();
doPatternLabel();
doFieldLabel();
doValueList();
pop.hide();
}
} );
pop.addAttribute( "",
ok );
pop.show();
}
private boolean isBindingUnique(String binding) {
return !validator.isVariableNameUsed( binding );
}
private boolean isValidFactType() {
return !(editingCol.getFactType() == null || "".equals( editingCol.getFactType() ));
}
private boolean isValidFactField() {
return !(editingCol.getFactField() == null || "".equals( editingCol.getFactField() ));
}
private Widget doInsertLogical() {
HorizontalPanel hp = new HorizontalPanel();
final CheckBox cb = new CheckBox();
cb.setValue( editingCol.isInsertLogical() );
cb.setText( "" );
cb.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
cb.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent arg0) {
if ( sce.isGlobalVariable( editingCol.getBoundName() ) ) {
cb.setEnabled( false );
editingCol.setInsertLogical( false );
} else {
editingCol.setInsertLogical( cb.getValue() );
}
}
} );
}
hp.add( cb );
hp.add( new InfoPopup( Constants.INSTANCE.LogicallyInsertANewFact(),
Constants.INSTANCE.LogicallyAssertAFactTheFactWillBeRetractedWhenTheSupportingEvidenceIsRemoved() ) );
return hp;
}
}