/*
* 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.workbench.screens.guided.dtable.client.widget;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import com.github.gwtbootstrap.client.ui.CheckBox;
import com.github.gwtbootstrap.client.ui.RadioButton;
import com.google.gwt.dom.client.Style;
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.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;
import org.drools.workbench.models.datamodel.oracle.DataType;
import org.drools.workbench.models.datamodel.oracle.FieldAccessorsAndMutators;
import org.drools.workbench.models.datamodel.oracle.ModelField;
import org.drools.workbench.models.datamodel.rule.BaseSingleFieldConstraint;
import org.drools.workbench.models.datamodel.rule.HasCEPWindow;
import org.drools.workbench.models.guided.dtable.shared.model.BRLRuleModel;
import org.drools.workbench.models.guided.dtable.shared.model.CompositeColumn;
import org.drools.workbench.models.guided.dtable.shared.model.ConditionCol52;
import org.drools.workbench.models.guided.dtable.shared.model.DTCellValue52;
import org.drools.workbench.models.guided.dtable.shared.model.GuidedDecisionTable52;
import org.drools.workbench.models.guided.dtable.shared.model.GuidedDecisionTable52.TableFormat;
import org.drools.workbench.models.guided.dtable.shared.model.LimitedEntryCol;
import org.drools.workbench.models.guided.dtable.shared.model.LimitedEntryConditionCol52;
import org.drools.workbench.models.guided.dtable.shared.model.Pattern52;
import org.drools.workbench.screens.guided.dtable.client.resources.i18n.GuidedDecisionTableConstants;
import org.drools.workbench.screens.guided.dtable.client.resources.images.GuidedDecisionTableImageResources508;
import org.drools.workbench.screens.guided.dtable.client.utils.DTCellValueUtilities;
import org.drools.workbench.screens.guided.dtable.client.utils.GuidedDecisionTableUtils;
import org.drools.workbench.screens.guided.rule.client.editor.BindingTextBox;
import org.drools.workbench.screens.guided.rule.client.editor.CEPOperatorsDropdown;
import org.drools.workbench.screens.guided.rule.client.editor.CEPWindowOperatorsDropdown;
import org.drools.workbench.screens.guided.rule.client.editor.OperatorSelection;
import org.kie.uberfire.client.common.ImageButton;
import org.kie.uberfire.client.common.InfoPopup;
import org.kie.uberfire.client.common.SmallLabel;
import org.kie.uberfire.client.common.popups.FormStylePopup;
import org.kie.uberfire.client.common.popups.footers.ModalFooterOKCancelButtons;
import org.kie.workbench.common.widgets.client.datamodel.AsyncPackageDataModelOracle;
import org.kie.workbench.common.widgets.client.resources.HumanReadable;
import org.uberfire.client.callbacks.Callback;
/**
* This is a configuration editor for a column in a the guided decision table.
*/
public class ConditionPopup extends FormStylePopup {
private SmallLabel patternLabel = new SmallLabel();
private TextBox fieldLabel = getFieldLabel();
private TextBox binding = new BindingTextBox();
private Label operatorLabel = new Label();
private SimplePanel limitedEntryValueWidgetContainer = new SimplePanel();
private int limitedEntryValueAttributeIndex = -1;
private TextBox valueListWidget = null;
private SimplePanel defaultValueWidgetContainer = new SimplePanel();
private int defaultValueWidgetContainerIndex = -1;
private ImageButton editField;
private ImageButton editOp;
private RadioButton literal = new RadioButton( "constraintValueType",
GuidedDecisionTableConstants.INSTANCE.LiteralValue() );
private RadioButton formula = new RadioButton( "constraintValueType",
GuidedDecisionTableConstants.INSTANCE.Formula() );
private RadioButton predicate = new RadioButton( "constraintValueType",
GuidedDecisionTableConstants.INSTANCE.Predicate() );
private CEPWindowOperatorsDropdown cwo;
private TextBox entryPointName;
private int cepWindowRowIndex;
private final GuidedDecisionTable52 model;
private final AsyncPackageDataModelOracle oracle;
private final GuidedDecisionTableUtils utils;
private final DTCellValueWidgetFactory factory;
private final Validator validator;
private final BRLRuleModel rm;
private final DTCellValueUtilities utilities;
private Pattern52 editingPattern;
private ConditionCol52 editingCol;
private final boolean isReadOnly;
private InfoPopup fieldLabelInterpolationInfo = getPredicateHint();
private ModalFooterOKCancelButtons footer;
public ConditionPopup( final GuidedDecisionTable52 model,
final AsyncPackageDataModelOracle oracle,
final ConditionColumnCommand refreshGrid,
final ConditionCol52 col,
final boolean isNew,
final boolean isReadOnly ) {
super( GuidedDecisionTableConstants.INSTANCE.ConditionColumnConfiguration() );
this.rm = new BRLRuleModel( model );
Pattern52 originalPattern = model.getPattern( col );
this.editingPattern = originalPattern != null ? originalPattern.clonePattern() : null;
this.editingCol = cloneConditionColumn( col );
this.model = model;
this.oracle = oracle;
this.utils = new GuidedDecisionTableUtils( model,
oracle );
this.isReadOnly = isReadOnly;
this.validator = new Validator( model.getConditions() );
this.utilities = new DTCellValueUtilities( model,
oracle );
//Set-up a factory for value editors
factory = DTCellValueWidgetFactory.getInstance( model,
oracle,
isReadOnly,
allowEmptyValues() );
HorizontalPanel pattern = new HorizontalPanel();
pattern.add( patternLabel );
doPatternLabel();
//Pattern selector
ImageButton changePattern = new ImageButton( GuidedDecisionTableImageResources508.INSTANCE.Edit(),
GuidedDecisionTableImageResources508.INSTANCE.EditDisabled(),
GuidedDecisionTableConstants.INSTANCE.ChooseAnExistingPatternThatThisColumnAddsTo(),
new ClickHandler() {
public void onClick( ClickEvent w ) {
showChangePattern( w );
}
} );
changePattern.setEnabled( !isReadOnly );
pattern.add( changePattern );
addAttribute( GuidedDecisionTableConstants.INSTANCE.Pattern(),
pattern );
//Radio buttons for Calculation Type
switch ( model.getTableFormat() ) {
case EXTENDED_ENTRY:
HorizontalPanel valueTypes = new HorizontalPanel();
valueTypes.add( literal );
valueTypes.add( formula );
valueTypes.add( predicate );
addAttribute( new StringBuilder( GuidedDecisionTableConstants.INSTANCE.CalculationType() ).append( GuidedDecisionTableConstants.COLON ).toString(),
valueTypes );
switch ( editingCol.getConstraintValueType() ) {
case BaseSingleFieldConstraint.TYPE_LITERAL:
literal.setValue( true );
break;
case BaseSingleFieldConstraint.TYPE_RET_VALUE:
formula.setValue( true );
break;
case BaseSingleFieldConstraint.TYPE_PREDICATE:
predicate.setValue( true );
}
if ( !isReadOnly ) {
literal.addClickHandler( new ClickHandler() {
public void onClick( ClickEvent w ) {
editingCol.setFactField( null );
applyConsTypeChange( BaseSingleFieldConstraint.TYPE_LITERAL );
}
} );
}
if ( !isReadOnly ) {
formula.addClickHandler( new ClickHandler() {
public void onClick( ClickEvent w ) {
editingCol.setFactField( null );
applyConsTypeChange( BaseSingleFieldConstraint.TYPE_RET_VALUE );
}
} );
}
if ( !isReadOnly ) {
predicate.addClickHandler( new ClickHandler() {
public void onClick( ClickEvent w ) {
editingCol.setFactField( null );
applyConsTypeChange( BaseSingleFieldConstraint.TYPE_PREDICATE );
}
} );
}
break;
case LIMITED_ENTRY:
binding.setEnabled( !isReadOnly );
}
//Fact field
HorizontalPanel field = new HorizontalPanel();
fieldLabel.setEnabled( !isReadOnly );
field.add( fieldLabel );
field.add( fieldLabelInterpolationInfo );
this.editField = new ImageButton( GuidedDecisionTableImageResources508.INSTANCE.Edit(),
GuidedDecisionTableImageResources508.INSTANCE.EditDisabled(),
GuidedDecisionTableConstants.INSTANCE.EditTheFieldThatThisColumnOperatesOn(),
new ClickHandler() {
public void onClick( ClickEvent w ) {
showFieldChange();
}
} );
editField.setEnabled( !isReadOnly );
field.add( editField );
addAttribute( new StringBuilder( GuidedDecisionTableConstants.INSTANCE.Field() ).append( GuidedDecisionTableConstants.COLON ).toString(),
field );
doFieldLabel();
//Operator
HorizontalPanel operator = new HorizontalPanel();
operator.add( operatorLabel );
this.editOp = new ImageButton( GuidedDecisionTableImageResources508.INSTANCE.Edit(),
GuidedDecisionTableImageResources508.INSTANCE.EditDisabled(),
GuidedDecisionTableConstants.INSTANCE.EditTheOperatorThatIsUsedToCompareDataWithThisField(),
new ClickHandler() {
public void onClick( ClickEvent w ) {
showOperatorChange();
}
} );
editOp.setEnabled( !isReadOnly );
operator.add( editOp );
addAttribute( GuidedDecisionTableConstants.INSTANCE.Operator(),
operator );
doOperatorLabel();
doImageButtons();
//Add CEP fields for patterns containing Facts declared as Events
cepWindowRowIndex = addAttribute( GuidedDecisionTableConstants.INSTANCE.DTLabelOverCEPWindow(),
createCEPWindowWidget( editingPattern ) );
displayCEPOperators();
//Entry point
entryPointName = new TextBox();
entryPointName.setText( editingPattern.getEntryPointName() );
entryPointName.setEnabled( !isReadOnly );
if ( !isReadOnly ) {
entryPointName.addChangeHandler( new ChangeHandler() {
public void onChange( ChangeEvent event ) {
editingPattern.setEntryPointName( entryPointName.getText() );
}
} );
}
addAttribute( new StringBuilder( GuidedDecisionTableConstants.INSTANCE.DTLabelFromEntryPoint() ).append( GuidedDecisionTableConstants.COLON ).toString(),
entryPointName );
//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( GuidedDecisionTableConstants.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( utils.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 DataType.DataTypes dataType = utilities.getDataType( editingPattern,
editingCol );
utilities.assertDTCellValue( dataType,
defaultValue );
}
}
} );
}
HorizontalPanel vl = new HorizontalPanel();
vl.add( valueListWidget );
vl.add( new InfoPopup( GuidedDecisionTableConstants.INSTANCE.ValueList(),
GuidedDecisionTableConstants.INSTANCE.ValueListsExplanation() ) );
addAttribute( GuidedDecisionTableConstants.INSTANCE.optionalValueList(),
vl );
}
//Default value
if ( model.getTableFormat() == TableFormat.EXTENDED_ENTRY ) {
defaultValueWidgetContainerIndex = addAttribute( new StringBuilder( GuidedDecisionTableConstants.INSTANCE.DefaultValue() ).append( GuidedDecisionTableConstants.COLON ).toString(),
defaultValueWidgetContainer );
makeDefaultValueWidget();
}
//Limited entry value widget
if ( model.getTableFormat() == TableFormat.LIMITED_ENTRY ) {
limitedEntryValueAttributeIndex = addAttribute( GuidedDecisionTableConstants.INSTANCE.LimitedEntryValue(),
limitedEntryValueWidgetContainer );
makeLimitedValueWidget();
}
//Field Binding
binding.setText( col.getBinding() );
if ( !isReadOnly ) {
binding.addChangeHandler( new ChangeHandler() {
public void onChange( ChangeEvent event ) {
editingCol.setBinding( binding.getText() );
}
} );
}
addAttribute( new StringBuilder( GuidedDecisionTableConstants.INSTANCE.Binding() ).append( GuidedDecisionTableConstants.COLON ).toString(),
binding );
//Hide column tick-box
addAttribute( new StringBuilder( GuidedDecisionTableConstants.INSTANCE.HideThisColumn() ).append( GuidedDecisionTableConstants.COLON ).toString(),
DTCellValueWidgetFactory.getHideColumnIndicator( editingCol ) );
//Initialise view
doValueList();
doCalculationType();
initialiseViewForConstraintValueType( editingCol.getConstraintValueType() );
//Apply button
footer = new ModalFooterOKCancelButtons( new Command() {
@Override
public void execute() {
applyChanges( refreshGrid,
col,
isNew );
}
}, new Command() {
@Override
public void execute() {
hide();
}
}
);
add( footer );
}
private void applyChanges( final ConditionColumnCommand refreshGrid,
final ConditionCol52 col,
final boolean isNew ) {
if ( null == editingCol.getHeader() || "".equals( editingCol.getHeader() ) ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.YouMustEnterAColumnHeaderValueDescription() );
return;
}
if ( editingCol.getConstraintValueType() != BaseSingleFieldConstraint.TYPE_PREDICATE ) {
//Field mandatory for Literals and Formulae
if ( null == editingCol.getFactField() || "".equals( editingCol.getFactField() ) ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.PleaseSelectOrEnterField() );
return;
}
//Operator optional for Literals and Formulae
if ( editingCol.getOperator() == null ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.NotifyNoSelectedOperator() );
return;
}
} else {
//Clear operator for predicates, but leave field intact for interpolation of $param values
editingCol.setOperator( null );
}
//Check for unique binding
if ( isNew ) {
if ( editingCol.isBound() && !isBindingUnique( editingCol.getBinding() ) ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.PleaseEnterANameThatIsNotAlreadyUsedByAnotherPattern() );
return;
}
} else {
if ( col.isBound() && editingCol.isBound() ) {
if ( !col.getBinding().equals( editingCol.getBinding() ) ) {
if ( editingCol.isBound() && !isBindingUnique( editingCol.getBinding() ) ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.PleaseEnterANameThatIsNotAlreadyUsedByAnotherPattern() );
return;
}
}
}
}
//Check column header is unique
if ( isNew ) {
if ( !unique( editingCol.getHeader() ) ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.ThatColumnNameIsAlreadyInUsePleasePickAnother() );
return;
}
} else {
if ( !col.getHeader().equals( editingCol.getHeader() ) ) {
if ( !unique( editingCol.getHeader() ) ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.ThatColumnNameIsAlreadyInUsePleasePickAnother() );
return;
}
}
}
//Clear binding if column is not a literal
if ( editingCol.getConstraintValueType() != BaseSingleFieldConstraint.TYPE_LITERAL ) {
editingCol.setBinding( null );
}
// Pass new\modified column back for handling
refreshGrid.execute( editingPattern,
editingCol );
hide();
}
private boolean allowEmptyValues() {
return this.model.getTableFormat() == TableFormat.EXTENDED_ENTRY;
}
private ConditionCol52 cloneConditionColumn( ConditionCol52 col ) {
ConditionCol52 clone = null;
if ( col instanceof LimitedEntryConditionCol52 ) {
clone = new LimitedEntryConditionCol52();
DTCellValue52 dcv = cloneLimitedEntryValue( ( (LimitedEntryCol) col ).getValue() );
( (LimitedEntryCol) clone ).setValue( dcv );
} else {
clone = new ConditionCol52();
}
clone.setConstraintValueType( col.getConstraintValueType() );
clone.setFactField( col.getFactField() );
clone.setFieldType( col.getFieldType() );
clone.setHeader( col.getHeader() );
clone.setOperator( col.getOperator() );
clone.setValueList( col.getValueList() );
clone.setDefaultValue( new DTCellValue52( col.getDefaultValue() ) );
clone.setHideColumn( col.isHideColumn() );
clone.setParameters( col.getParameters() );
clone.setWidth( col.getWidth() );
clone.setBinding( col.getBinding() );
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 LimitedEntryConditionCol52 ) ) {
return;
}
LimitedEntryConditionCol52 lec = (LimitedEntryConditionCol52) editingCol;
boolean doesOperatorNeedValue = validator.doesOperatorNeedValue( editingCol );
if ( !doesOperatorNeedValue ) {
setAttributeVisibility( limitedEntryValueAttributeIndex,
false );
lec.setValue( null );
return;
}
setAttributeVisibility( limitedEntryValueAttributeIndex,
true );
if ( lec.getValue() == null ) {
lec.setValue( factory.makeNewValue( editingPattern,
editingCol ) );
}
limitedEntryValueWidgetContainer.setWidget( factory.getWidget( editingPattern,
editingCol,
lec.getValue() ) );
}
private void makeDefaultValueWidget() {
if ( model.getTableFormat() == TableFormat.LIMITED_ENTRY ) {
return;
}
if ( nil( editingCol.getFactField() ) ) {
setAttributeVisibility( defaultValueWidgetContainerIndex,
false );
return;
}
//Don't show Default Value if operator does not require a value
if ( !validator.doesOperatorNeedValue( editingCol ) ) {
setAttributeVisibility( defaultValueWidgetContainerIndex,
false );
return;
}
setAttributeVisibility( defaultValueWidgetContainerIndex,
true );
if ( editingCol.getDefaultValue() == null ) {
editingCol.setDefaultValue( factory.makeNewValue( editingPattern,
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 DataType.DataTypes dataType = utilities.getDataType( editingPattern,
editingCol );
utilities.assertDTCellValue( dataType,
defaultValue );
//Correct comma-separated Default Value if operator does not support it
if ( !validator.doesOperatorAcceptCommaSeparatedValues( editingCol ) ) {
utilities.removeCommaSeparatedValue( defaultValue );
}
defaultValueWidgetContainer.setWidget( factory.getWidget( editingPattern,
editingCol,
defaultValue ) );
}
private void applyConsTypeChange( int newConstraintValueType ) {
editingCol.setConstraintValueType( newConstraintValueType );
initialiseViewForConstraintValueType( newConstraintValueType );
}
private void initialiseViewForConstraintValueType( int constraintValueType ) {
binding.setEnabled( constraintValueType == BaseSingleFieldConstraint.TYPE_LITERAL && !isReadOnly );
doFieldLabel();
doValueList();
doOperatorLabel();
doImageButtons();
makeDefaultValueWidget();
}
private void doImageButtons() {
int constraintType = editingCol.getConstraintValueType();
boolean enableField = !( nil( editingPattern.getFactType() ) || constraintType == BaseSingleFieldConstraint.TYPE_PREDICATE || isReadOnly );
boolean enableOp = !( nil( editingCol.getFactField() ) || constraintType == BaseSingleFieldConstraint.TYPE_PREDICATE || isReadOnly );
this.editField.setEnabled( enableField );
this.editOp.setEnabled( enableOp );
}
private boolean isBindingUnique( String binding ) {
return !rm.isVariableNameUsed( binding );
}
private void doFieldLabel() {
if ( editingCol.getConstraintValueType() == BaseSingleFieldConstraint.TYPE_PREDICATE ) {
if ( this.editingCol.getFactField() == null || this.editingCol.getFactField().equals( "" ) ) {
fieldLabel.setText( GuidedDecisionTableConstants.INSTANCE.notNeededForPredicate() );
} else {
fieldLabel.setText( this.editingCol.getFactField() );
}
fieldLabelInterpolationInfo.getWidget().getElement().getStyle().setDisplay( Style.Display.INLINE );
} else if ( nil( editingPattern.getFactType() ) ) {
fieldLabel.setText( GuidedDecisionTableConstants.INSTANCE.pleaseSelectAPatternFirst() );
fieldLabelInterpolationInfo.getWidget().getElement().getStyle().setDisplay( Style.Display.NONE );
} else if ( nil( editingCol.getFactField() ) ) {
fieldLabel.setText( GuidedDecisionTableConstants.INSTANCE.pleaseSelectAField() );
fieldLabelInterpolationInfo.getWidget().getElement().getStyle().setDisplay( Style.Display.NONE );
} else {
fieldLabel.setText( this.editingCol.getFactField() );
}
}
private void doOperatorLabel() {
if ( editingCol.getConstraintValueType() == BaseSingleFieldConstraint.TYPE_PREDICATE ) {
operatorLabel.setText( GuidedDecisionTableConstants.INSTANCE.notNeededForPredicate() );
} else if ( nil( editingPattern.getFactType() ) ) {
operatorLabel.setText( GuidedDecisionTableConstants.INSTANCE.pleaseSelectAPatternFirst() );
} else if ( nil( editingCol.getFactField() ) ) {
operatorLabel.setText( GuidedDecisionTableConstants.INSTANCE.pleaseChooseAFieldFirst() );
} else if ( nil( editingCol.getOperator() ) ) {
operatorLabel.setText( GuidedDecisionTableConstants.INSTANCE.pleaseSelectAField() );
} else {
operatorLabel.setText( HumanReadable.getOperatorDisplayName( editingCol.getOperator() ) );
}
}
private void doPatternLabel() {
if ( editingPattern.getFactType() != null ) {
StringBuilder patternLabel = new StringBuilder();
String factType = editingPattern.getFactType();
String boundName = editingPattern.getBoundName();
if ( factType != null && factType.length() > 0 ) {
if ( editingPattern.isNegated() ) {
patternLabel.append( GuidedDecisionTableConstants.INSTANCE.negatedPattern() ).append( " " ).append( factType );
} else {
patternLabel.append( factType ).append( " [" ).append( boundName ).append( "]" );
}
}
this.patternLabel.setText( patternLabel.toString() );
}
doFieldLabel();
doOperatorLabel();
}
private TextBox getFieldLabel() {
final TextBox box = new TextBox();
box.addChangeHandler( new ChangeHandler() {
public void onChange( ChangeEvent event ) {
editingCol.setFactField( box.getText() );
}
} );
return box;
}
private InfoPopup getPredicateHint() {
return new InfoPopup( GuidedDecisionTableConstants.INSTANCE.Predicates(),
GuidedDecisionTableConstants.INSTANCE.PredicatesInfo() );
}
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 = editingPattern.getFactType();
final String factField = editingCol.getFactField();
boolean enableValueList = !( ( factType == null || "".equals( factType ) ) || ( factField == null || "".equals( factField ) ) );
//Don't show Value List if operator does not accept one
if ( enableValueList ) {
enableValueList = validator.doesOperatorAcceptValueList( editingCol );
}
//Don't show a Value List if the Fact\Field has an enumeration
if ( enableValueList ) {
enableValueList = !oracle.hasEnums( factType,
factField );
}
valueListWidget.setEnabled( enableValueList );
if ( !enableValueList ) {
valueListWidget.setText( "" );
} else {
valueListWidget.setText( editingCol.getValueList() );
}
}
private void doCalculationType() {
if ( model.getTableFormat() == TableFormat.LIMITED_ENTRY ) {
return;
}
//Disable Formula and Predicate if the Fact\Field has enums
final String factType = editingPattern.getFactType();
final String factField = editingCol.getFactField();
final boolean hasEnums = oracle.hasEnums( factType,
factField );
this.literal.setEnabled( hasEnums || !isReadOnly );
this.formula.setEnabled( !( hasEnums || isReadOnly ) );
this.predicate.setEnabled( !( hasEnums || isReadOnly ) );
//If Fact\Field has enums the Value Type has to be a literal
if ( hasEnums ) {
this.editingCol.setConstraintValueType( BaseSingleFieldConstraint.TYPE_LITERAL );
}
}
private ListBox loadPatterns() {
Set<String> vars = new HashSet<String>();
ListBox patterns = new ListBox();
for ( Pattern52 p : model.getPatterns() ) {
if ( !vars.contains( p.getBoundName() ) ) {
patterns.addItem( ( p.isNegated() ? GuidedDecisionTableConstants.INSTANCE.negatedPattern() + " " : "" )
+ p.getFactType()
+ " [" + p.getBoundName() + "]",
p.getFactType()
+ " " + p.getBoundName()
+ " " + p.isNegated() );
vars.add( p.getBoundName() );
}
}
return patterns;
}
private boolean nil( String s ) {
return s == null || s.equals( "" );
}
private void showOperatorChange() {
final String factType = editingPattern.getFactType();
final String factField = editingCol.getFactField();
this.oracle.getOperatorCompletions( factType,
factField,
new Callback<String[]>() {
@Override
public void callback( final String[] ops ) {
doShowOperatorChange( factType,
factField,
ops );
}
} );
}
private void doShowOperatorChange( final String factType,
final String factField,
final String[] ops ) {
final FormStylePopup pop = new FormStylePopup( GuidedDecisionTableConstants.INSTANCE.SetTheOperator() );
//Operators "in" and "not in" are only allowed if the Calculation Type is a Literal
final List<String> filteredOps = new ArrayList<String>();
for ( String op : ops ) {
filteredOps.add( op );
}
if ( BaseSingleFieldConstraint.TYPE_LITERAL != this.editingCol.getConstraintValueType() ) {
filteredOps.remove( "in" );
filteredOps.remove( "not in" );
}
final String[] displayOps = new String[ filteredOps.size() ];
filteredOps.toArray( displayOps );
final CEPOperatorsDropdown box = new CEPOperatorsDropdown( displayOps,
editingCol );
box.insertItem( GuidedDecisionTableConstants.INSTANCE.noOperator(),
"",
1 );
pop.addAttribute( GuidedDecisionTableConstants.INSTANCE.Operator(),
box );
pop.add( new ModalFooterOKCancelButtons( new Command() {
@Override
public void execute() {
editingCol.setOperator( box.getValue( box.getSelectedIndex() ) );
makeLimitedValueWidget();
makeDefaultValueWidget();
doOperatorLabel();
doValueList();
pop.hide();
enableFooter( true );
}
}, new Command() {
@Override
public void execute() {
pop.hide();
enableFooter( true );
}
}
) );
enableFooter( false );
pop.show();
}
private boolean unique( String header ) {
for ( CompositeColumn<?> cc : model.getConditions() ) {
for ( int iChild = 0; iChild < cc.getChildColumns().size(); iChild++ ) {
if ( cc.getChildColumns().get( iChild ).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( GuidedDecisionTableConstants.INSTANCE.FactType() );
pop.addAttribute( GuidedDecisionTableConstants.INSTANCE.ChooseExistingPatternToAddColumnTo(),
pats );
pop.add( new ModalFooterChangePattern( new Command() {
@Override
public void execute() {
String[] val = pats.getValue( pats.getSelectedIndex() ).split( "\\s" );
editingPattern = model.getConditionPattern( val[ 1 ] );
//Clear Field and Operator when pattern changes
editingCol.setFactField( null );
editingCol.setOperator( null );
//Set-up UI
entryPointName.setText( editingPattern.getEntryPointName() );
cwo.selectItem( editingPattern.getWindow().getOperator() );
makeLimitedValueWidget();
makeDefaultValueWidget();
displayCEPOperators();
doPatternLabel();
doValueList();
doCalculationType();
doImageButtons();
pop.hide();
enableFooter( true );
}
}, new Command() {
@Override
public void execute() {
pop.hide();
showNewPatternDialog();
}
}, new Command() {
@Override
public void execute() {
pop.hide();
enableFooter( true );
}
}
) );
enableFooter( false );
pop.show();
}
protected void showFieldChange() {
final FormStylePopup pop = new FormStylePopup( GuidedDecisionTableConstants.INSTANCE.Field() );
final ListBox box = new ListBox();
this.oracle.getFieldCompletions( this.editingPattern.getFactType(),
FieldAccessorsAndMutators.ACCESSOR,
new Callback<ModelField[]>() {
@Override
public void callback( final ModelField[] fields ) {
switch ( editingCol.getConstraintValueType() ) {
case BaseSingleFieldConstraint.TYPE_LITERAL:
//Literals can be on any field
for ( int i = 0; i < fields.length; i++ ) {
box.addItem( fields[ i ].getName() );
}
break;
case BaseSingleFieldConstraint.TYPE_RET_VALUE:
//Formulae can only consume fields that do not have enumerations
for ( int i = 0; i < fields.length; i++ ) {
final String fieldName = fields[ i ].getName();
if ( !oracle.hasEnums( editingPattern.getFactType(),
fieldName ) ) {
box.addItem( fieldName );
}
}
break;
case BaseSingleFieldConstraint.TYPE_PREDICATE:
//Predicates don't need a field (this should never be reachable as the
//field selector is disabled when the Calculation Type is Predicate)
break;
}
}
} );
pop.addAttribute( new StringBuilder( GuidedDecisionTableConstants.INSTANCE.Field() ).append( GuidedDecisionTableConstants.COLON ).toString(),
box );
pop.add( new ModalFooterOKCancelButtons( new Command() {
@Override
public void execute() {
editingCol.setFactField( box.getItemText( box.getSelectedIndex() ) );
editingCol.setFieldType( oracle.getFieldType( editingPattern.getFactType(),
editingCol.getFactField() ) );
//Clear Operator when field changes
editingCol.setOperator( null );
editingCol.setValueList( null );
//Setup UI
doFieldLabel();
doValueList();
doCalculationType();
makeLimitedValueWidget();
makeDefaultValueWidget();
doOperatorLabel();
doImageButtons();
pop.hide();
enableFooter( true );
}
}, new Command() {
@Override
public void execute() {
pop.hide();
enableFooter( true );
}
}
) );
enableFooter( false );
pop.show();
}
protected void showNewPatternDialog() {
final FormStylePopup pop = new FormStylePopup( GuidedDecisionTableConstants.INSTANCE.FactType() );
pop.setTitle( GuidedDecisionTableConstants.INSTANCE.CreateANewFactPattern() );
final ListBox types = new ListBox();
for ( int i = 0; i < oracle.getFactTypes().length; i++ ) {
types.addItem( oracle.getFactTypes()[ i ] );
}
pop.addAttribute( GuidedDecisionTableConstants.INSTANCE.FactType(),
types );
final TextBox binding = new BindingTextBox();
binding.addChangeHandler( new ChangeHandler() {
public void onChange( ChangeEvent event ) {
binding.setText( binding.getText().replace( " ",
"" ) );
}
} );
pop.addAttribute( new StringBuilder( GuidedDecisionTableConstants.INSTANCE.Binding() ).append( GuidedDecisionTableConstants.COLON ).toString(),
binding );
//Patterns can be negated, i.e. "not Pattern(...)"
final CheckBox chkNegated = new CheckBox();
chkNegated.addClickHandler( new ClickHandler() {
public void onClick( ClickEvent event ) {
boolean isPatternNegated = chkNegated.getValue();
binding.setEnabled( !isPatternNegated );
}
} );
pop.addAttribute( GuidedDecisionTableConstants.INSTANCE.negatePattern(),
chkNegated );
pop.add( new ModalFooterOKCancelButtons( new Command() {
@Override
public void execute() {
boolean isPatternNegated = chkNegated.getValue();
String ft = types.getItemText( types.getSelectedIndex() );
String fn = isPatternNegated ? "" : binding.getText();
if ( !isPatternNegated ) {
if ( fn.equals( "" ) ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.PleaseEnterANameForFact() );
return;
} else if ( fn.equals( ft ) ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.PleaseEnterANameThatIsNotTheSameAsTheFactType() );
return;
} else if ( !isBindingUnique( fn ) ) {
Window.alert( GuidedDecisionTableConstants.INSTANCE.PleaseEnterANameThatIsNotAlreadyUsedByAnotherPattern() );
return;
}
}
//Create new pattern
editingPattern = new Pattern52();
editingPattern.setFactType( ft );
editingPattern.setBoundName( fn );
editingPattern.setNegated( isPatternNegated );
//Clear Field and Operator when pattern changes
editingCol.setFactField( null );
editingCol.setOperator( null );
//Set-up UI
entryPointName.setText( editingPattern.getEntryPointName() );
cwo.selectItem( editingPattern.getWindow().getOperator() );
makeLimitedValueWidget();
makeDefaultValueWidget();
displayCEPOperators();
doPatternLabel();
doValueList();
doCalculationType();
doOperatorLabel();
doImageButtons();
pop.hide();
enableFooter( true );
}
}, new Command() {
@Override
public void execute() {
pop.hide();
enableFooter( true );
}
}
) );
enableFooter( false );
pop.show();
}
//Widget for CEP 'windows'
private Widget createCEPWindowWidget( final HasCEPWindow c ) {
HorizontalPanel hp = new HorizontalPanel();
Label lbl = new Label( GuidedDecisionTableConstants.INSTANCE.OverCEPWindow() );
lbl.setStyleName( "paddedLabel" );
hp.add( lbl );
cwo = new CEPWindowOperatorsDropdown( c,
isReadOnly );
if ( !isReadOnly ) {
cwo.addValueChangeHandler( new ValueChangeHandler<OperatorSelection>() {
public void onValueChange( ValueChangeEvent<OperatorSelection> event ) {
OperatorSelection selection = event.getValue();
String selected = selection.getValue();
c.getWindow().setOperator( selected );
}
} );
}
hp.add( cwo );
return hp;
}
private void displayCEPOperators() {
oracle.isFactTypeAnEvent( editingPattern.getFactType(),
new Callback<Boolean>() {
@Override
public void callback( final Boolean result ) {
setAttributeVisibility( cepWindowRowIndex,
Boolean.TRUE.equals( result ) );
}
} );
}
private void enableFooter( final boolean enabled ) {
if ( footer == null ) {
return;
}
footer.enableOkButton( enabled );
footer.enableCancelButton( enabled );
}
}