/*
* 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.ArrayList;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.drools.guvnor.client.asseteditor.drools.modeldriven.HumanReadable;
import org.drools.guvnor.client.asseteditor.drools.modeldriven.ui.BindingTextBox;
import org.drools.guvnor.client.asseteditor.drools.modeldriven.ui.CEPOperatorsDropdown;
import org.drools.guvnor.client.asseteditor.drools.modeldriven.ui.CEPWindowOperatorsDropdown;
import org.drools.guvnor.client.asseteditor.drools.modeldriven.ui.OperatorSelection;
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.DroolsGuvnorImages;
import org.drools.ide.common.client.modeldriven.FieldAccessorsAndMutators;
import org.drools.ide.common.client.modeldriven.SuggestionCompletionEngine;
import org.drools.ide.common.client.modeldriven.brl.BaseSingleFieldConstraint;
import org.drools.ide.common.client.modeldriven.brl.HasCEPWindow;
import org.drools.ide.common.client.modeldriven.dt52.BRLRuleModel;
import org.drools.ide.common.client.modeldriven.dt52.CompositeColumn;
import org.drools.ide.common.client.modeldriven.dt52.ConditionCol52;
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.LimitedEntryCol;
import org.drools.ide.common.client.modeldriven.dt52.LimitedEntryConditionCol52;
import org.drools.ide.common.client.modeldriven.dt52.Pattern52;
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.Window;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.HTML;
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.RadioButton;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;
/**
* 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",
Constants.INSTANCE.LiteralValue() );
private RadioButton formula = new RadioButton( "constraintValueType",
Constants.INSTANCE.Formula() );
private RadioButton predicate = new RadioButton( "constraintValueType",
Constants.INSTANCE.Predicate() );
private CEPWindowOperatorsDropdown cwo;
private TextBox entryPointName;
private int cepWindowRowIndex;
private final GuidedDecisionTable52 model;
private final SuggestionCompletionEngine sce;
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();
public ConditionPopup(final SuggestionCompletionEngine sce,
final GuidedDecisionTable52 model,
final ConditionColumnCommand refreshGrid,
final ConditionCol52 col,
final boolean isNew,
final boolean isReadOnly) {
this.rm = new BRLRuleModel( model );
this.editingPattern = model.getPattern( col );
this.editingCol = cloneConditionColumn( col );
this.model = model;
this.sce = sce;
this.isReadOnly = isReadOnly;
this.validator = new Validator( model.getConditions() );
this.utilities = new DTCellValueUtilities( model,
sce );
//Set-up a factory for value editors
factory = DTCellValueWidgetFactory.getInstance( model,
sce,
isReadOnly,
allowEmptyValues() );
setTitle( Constants.INSTANCE.ConditionColumnConfiguration() );
setModal( false );
HorizontalPanel pattern = new HorizontalPanel();
pattern.add( patternLabel );
doPatternLabel();
//Pattern selector
ImageButton changePattern = new ImageButton( DroolsGuvnorImages.INSTANCE.edit(),
DroolsGuvnorImages.INSTANCE.editDisabled(),
Constants.INSTANCE.ChooseAnExistingPatternThatThisColumnAddsTo(),
new ClickHandler() {
public void onClick(ClickEvent w) {
showChangePattern( w );
}
} );
changePattern.setEnabled( !isReadOnly );
pattern.add( changePattern );
addAttribute( Constants.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( Constants.INSTANCE.CalculationType(),
valueTypes );
switch ( editingCol.getConstraintValueType() ) {
case BaseSingleFieldConstraint.TYPE_LITERAL :
literal.setValue( true );
binding.setEnabled( !isReadOnly );
break;
case BaseSingleFieldConstraint.TYPE_RET_VALUE :
formula.setValue( true );
binding.setEnabled( false );
break;
case BaseSingleFieldConstraint.TYPE_PREDICATE :
predicate.setValue( true );
binding.setEnabled( false );
}
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 );
}
} );
}
doCalculationType();
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( DroolsGuvnorImages.INSTANCE.edit(),
DroolsGuvnorImages.INSTANCE.editDisabled(),
Constants.INSTANCE.EditTheFieldThatThisColumnOperatesOn(),
new ClickHandler() {
public void onClick(ClickEvent w) {
showFieldChange();
}
} );
editField.setEnabled( !isReadOnly );
field.add( editField );
addAttribute( Constants.INSTANCE.Field(),
field );
doFieldLabel();
//Operator
HorizontalPanel operator = new HorizontalPanel();
operator.add( operatorLabel );
this.editOp = new ImageButton( DroolsGuvnorImages.INSTANCE.edit(),
DroolsGuvnorImages.INSTANCE.editDisabled(),
Constants.INSTANCE.EditTheOperatorThatIsUsedToCompareDataWithThisField(),
new ClickHandler() {
public void onClick(ClickEvent w) {
showOperatorChange();
}
} );
editOp.setEnabled( !isReadOnly );
operator.add( editOp );
addAttribute( Constants.INSTANCE.Operator(),
operator );
doOperatorLabel();
doImageButtons();
//Add CEP fields for patterns containing Facts declared as Events
cepWindowRowIndex = addAttribute( Constants.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( Constants.INSTANCE.DTLabelFromEntryPoint(),
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( 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( editingPattern,
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();
}
//Field Binding
binding.setText( col.getBinding() );
if ( !isReadOnly ) {
binding.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
editingCol.setBinding( binding.getText() );
}
} );
}
addAttribute( Constants.INSTANCE.Binding(),
binding );
//Hide column tick-box
addAttribute( Constants.INSTANCE.HideThisColumn(),
DTCellValueWidgetFactory.getHideColumnIndicator( editingCol ) );
//Apply button
Button apply = new Button( Constants.INSTANCE.ApplyChanges() );
apply.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
if ( null == editingCol.getHeader() || "".equals( editingCol.getHeader() ) ) {
Window.alert( Constants.INSTANCE.YouMustEnterAColumnHeaderValueDescription() );
return;
}
if ( editingCol.getConstraintValueType() != BaseSingleFieldConstraint.TYPE_PREDICATE ) {
//Field mandatory for Literals and Formulae
if ( null == editingCol.getFactField() || "".equals( editingCol.getFactField() ) ) {
Window.alert( Constants.INSTANCE.PleaseSelectOrEnterField() );
return;
}
//Operator optional for Literals and Formulae
if ( null == editingCol.getOperator() || "".equals( editingCol.getOperator() ) ) {
Window.alert( Constants.INSTANCE.NotifyNoSelectedOperator() );
}
} else {
//Clear operator for predicates, but leave field intact for interpolation of $param values
editingCol.setOperator( null );
}
//Check for unique binding
if ( editingCol.isBound() && !isBindingUnique( editingCol.getBinding() ) ) {
Window.alert( Constants.INSTANCE.PleaseEnterANameThatIsNotAlreadyUsedByAnotherPattern() );
return;
}
//Check column header is unique
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;
}
}
}
//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();
}
} );
addAttribute( "",
apply );
}
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 DTDataTypes52 dataType = utilities.getDataType( editingPattern,
editingCol );
utilities.assertDTCellValue( dataType,
defaultValue );
defaultValueWidgetContainer.setWidget( factory.getWidget( editingPattern,
editingCol,
defaultValue ) );
}
private void applyConsTypeChange(int newType) {
editingCol.setConstraintValueType( newType );
binding.setEnabled( newType == BaseSingleFieldConstraint.TYPE_LITERAL && !isReadOnly );
doFieldLabel();
doValueList();
doOperatorLabel();
doImageButtons();
makeDefaultValueWidget();
}
private void doImageButtons() {
int constraintType = editingCol.getConstraintValueType();
this.editField.setEnabled( constraintType != BaseSingleFieldConstraint.TYPE_PREDICATE && !isReadOnly );
this.editOp.setEnabled( constraintType != BaseSingleFieldConstraint.TYPE_PREDICATE && !isReadOnly );
}
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( Constants.INSTANCE.notNeededForPredicate() );
} else {
fieldLabel.setText( this.editingCol.getFactField() );
}
fieldLabelInterpolationInfo.setVisible( true );
} else if ( nil( editingPattern.getFactType() ) ) {
fieldLabel.setText( Constants.INSTANCE.pleaseSelectAPatternFirst() );
fieldLabelInterpolationInfo.setVisible( false );
} else if ( nil( editingCol.getFactField() ) ) {
fieldLabel.setText( Constants.INSTANCE.pleaseSelectAField() );
fieldLabelInterpolationInfo.setVisible( false );
} else {
fieldLabel.setText( this.editingCol.getFactField() );
}
}
private void doOperatorLabel() {
if ( editingCol.getConstraintValueType() == BaseSingleFieldConstraint.TYPE_PREDICATE ) {
operatorLabel.setText( Constants.INSTANCE.notNeededForPredicate() );
} else if ( nil( editingPattern.getFactType() ) ) {
operatorLabel.setText( Constants.INSTANCE.pleaseSelectAPatternFirst() );
} else if ( nil( editingCol.getFactField() ) ) {
operatorLabel.setText( Constants.INSTANCE.pleaseChooseAFieldFirst() );
} else if ( nil( editingCol.getOperator() ) ) {
operatorLabel.setText( Constants.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( Constants.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( Constants.INSTANCE.Predicates(),
Constants.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 = !sce.hasEnums( factType,
factField );
}
valueListWidget.setEnabled( enableValueList );
if ( !enableValueList ) {
valueListWidget.setText( "" );
}
}
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 = sce.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() ? Constants.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 FormStylePopup pop = new FormStylePopup();
pop.setTitle( Constants.INSTANCE.SetTheOperator() );
pop.setModal( false );
final String factType = editingPattern.getFactType();
final String factField = editingCol.getFactField();
String[] ops = this.sce.getOperatorCompletions( factType,
factField );
//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" );
}
//Remove "in" and "not in" if the Fact\Field is enumerated
if ( sce.hasEnums( factType,
factField ) ) {
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.addItem( Constants.INSTANCE.noOperator(),
"" );
pop.addAttribute( Constants.INSTANCE.Operator(),
box );
Button b = new Button( Constants.INSTANCE.OK() );
pop.addAttribute( "",
b );
b.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
editingCol.setOperator( box.getValue( box.getSelectedIndex() ) );
makeLimitedValueWidget();
makeDefaultValueWidget();
doOperatorLabel();
doValueList();
pop.hide();
}
} );
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();
Button ok = new Button( Constants.INSTANCE.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" );
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();
pop.hide();
}
} );
pop.show();
}
protected void showFieldChange() {
final FormStylePopup pop = new FormStylePopup();
pop.setModal( false );
String[] fields = this.sce.getFieldCompletions( FieldAccessorsAndMutators.ACCESSOR,
this.editingPattern.getFactType() );
final ListBox box = new ListBox();
switch ( this.editingCol.getConstraintValueType() ) {
case BaseSingleFieldConstraint.TYPE_LITERAL :
//Literals can be on any field
for ( int i = 0; i < fields.length; i++ ) {
box.addItem( fields[i] );
}
break;
case BaseSingleFieldConstraint.TYPE_RET_VALUE :
//Formulae can only consume fields that do not have enumerations
for ( int i = 0; i < fields.length; i++ ) {
if ( !sce.hasEnums( this.editingPattern.getFactType(),
fields[i] ) ) {
box.addItem( fields[i] );
}
}
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( 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.setFieldType( sce.getFieldType( editingPattern.getFactType(),
editingCol.getFactField() ) );
//Clear Operator when field changes
editingCol.setOperator( null );
//Setup UI
doFieldLabel();
doValueList();
doCalculationType();
makeLimitedValueWidget();
makeDefaultValueWidget();
doOperatorLabel();
pop.hide();
}
} );
pop.show();
}
protected void showNewPatternDialog() {
final FormStylePopup pop = new FormStylePopup();
pop.setTitle( Constants.INSTANCE.CreateANewFactPattern() );
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();
binding.addChangeHandler( new ChangeHandler() {
public void onChange(ChangeEvent event) {
binding.setText( binding.getText().replace( " ",
"" ) );
}
} );
pop.addAttribute( Constants.INSTANCE.Binding(),
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( Constants.INSTANCE.negatePattern(),
chkNegated );
Button ok = new Button( Constants.INSTANCE.OK() );
ok.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent w) {
boolean isPatternNegated = chkNegated.getValue();
String ft = types.getItemText( types.getSelectedIndex() );
String fn = isPatternNegated ? "" : binding.getText();
if ( !isPatternNegated ) {
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;
}
}
//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();
pop.hide();
}
} );
pop.addAttribute( "",
ok );
pop.show();
}
//Widget for CEP 'windows'
private Widget createCEPWindowWidget(final HasCEPWindow c) {
HorizontalPanel hp = new HorizontalPanel();
Label lbl = new Label( Constants.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() {
boolean isVisible = sce.isFactTypeAnEvent( editingPattern.getFactType() );
setAttributeVisibility( cepWindowRowIndex,
isVisible );
}
}