/*
* Copyright 2012 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.backend.server.indexing;
import java.util.Set;
import org.drools.workbench.models.datamodel.imports.Import;
import org.drools.workbench.models.datamodel.rule.ActionFieldValue;
import org.drools.workbench.models.datamodel.rule.ActionInsertFact;
import org.drools.workbench.models.datamodel.rule.ActionSetField;
import org.drools.workbench.models.datamodel.rule.CompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.CompositeFieldConstraint;
import org.drools.workbench.models.datamodel.rule.ConnectiveConstraint;
import org.drools.workbench.models.datamodel.rule.DSLSentence;
import org.drools.workbench.models.datamodel.rule.FactPattern;
import org.drools.workbench.models.datamodel.rule.FieldConstraint;
import org.drools.workbench.models.datamodel.rule.FreeFormLine;
import org.drools.workbench.models.datamodel.rule.FromAccumulateCompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.FromCollectCompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.FromCompositeFactPattern;
import org.drools.workbench.models.datamodel.rule.IAction;
import org.drools.workbench.models.datamodel.rule.IFactPattern;
import org.drools.workbench.models.datamodel.rule.IPattern;
import org.drools.workbench.models.datamodel.rule.RuleAttribute;
import org.drools.workbench.models.datamodel.rule.RuleModel;
import org.drools.workbench.models.datamodel.rule.SingleFieldConstraint;
import org.drools.workbench.models.datamodel.rule.SingleFieldConstraintEBLeftSide;
import org.kie.workbench.common.services.refactoring.backend.server.indexing.DefaultIndexBuilder;
import org.kie.workbench.common.services.refactoring.model.index.Type;
import org.kie.workbench.common.services.refactoring.model.index.TypeField;
import org.kie.workbench.common.services.refactoring.model.index.terms.valueterms.ValueFieldIndexTerm;
import org.kie.workbench.common.services.refactoring.model.index.terms.valueterms.ValueRuleAttributeIndexTerm;
import org.kie.workbench.common.services.refactoring.model.index.terms.valueterms.ValueRuleAttributeValueIndexTerm;
import org.kie.workbench.common.services.refactoring.model.index.terms.valueterms.ValueTypeIndexTerm;
import org.uberfire.commons.data.Pair;
import org.uberfire.commons.validation.PortablePreconditions;
/**
* Visitor to extract index information from a Guided Rule Model
*/
public class GuidedRuleModelIndexVisitor {
private final DefaultIndexBuilder builder;
private final RuleModel model;
public GuidedRuleModelIndexVisitor( final DefaultIndexBuilder builder,
final RuleModel model ) {
this.builder = PortablePreconditions.checkNotNull( "builder",
builder );
this.model = PortablePreconditions.checkNotNull( "model",
model );
}
public Set<Pair<String, String>> visit() {
visit( model );
return builder.build();
}
private void visit( final Object o ) {
if ( o instanceof RuleModel ) {
visitRuleModel( (RuleModel) o );
} else if ( o instanceof RuleAttribute ) {
visitRuleAttribute( (RuleAttribute) o );
} else if ( o instanceof FactPattern ) {
visitFactPattern( (FactPattern) o );
} else if ( o instanceof CompositeFieldConstraint ) {
visitCompositeFieldConstraint( (CompositeFieldConstraint) o );
} else if ( o instanceof SingleFieldConstraintEBLeftSide ) {
visitSingleFieldConstraint( (SingleFieldConstraintEBLeftSide) o );
} else if ( o instanceof SingleFieldConstraint ) {
visitSingleFieldConstraint( (SingleFieldConstraint) o );
} else if ( o instanceof ConnectiveConstraint ) {
visitConnectiveConstraint( (ConnectiveConstraint) o );
} else if ( o instanceof CompositeFactPattern ) {
visitCompositeFactPattern( (CompositeFactPattern) o );
} else if ( o instanceof FreeFormLine ) {
visitFreeFormLine( (FreeFormLine) o );
} else if ( o instanceof FromAccumulateCompositeFactPattern ) {
visitFromAccumulateCompositeFactPattern( (FromAccumulateCompositeFactPattern) o );
} else if ( o instanceof FromCollectCompositeFactPattern ) {
visitFromCollectCompositeFactPattern( (FromCollectCompositeFactPattern) o );
} else if ( o instanceof FromCompositeFactPattern ) {
visitFromCompositeFactPattern( (FromCompositeFactPattern) o );
} else if ( o instanceof DSLSentence ) {
visitDSLSentence( (DSLSentence) o );
} else if ( o instanceof ActionInsertFact ) {
visitActionFieldList( (ActionInsertFact) o );
}
}
private void visitRuleAttribute( final RuleAttribute attr ) {
builder.addGenerator( new org.kie.workbench.common.services.refactoring.model.index.RuleAttribute( new ValueRuleAttributeIndexTerm( attr.getAttributeName() ),
new ValueRuleAttributeValueIndexTerm( attr.getValue() ) ) );
}
//ActionInsertFact, ActionSetField, ActionUpdateField
private void visitActionFieldList( final ActionInsertFact afl ) {
builder.addGenerator( new Type( new ValueTypeIndexTerm( getFullyQualifiedClassName( afl.getFactType() ) ) ) );
}
private void visitActionFieldList( final String fullyQualifiedClassName,
final ActionSetField afl ) {
for ( ActionFieldValue afv : afl.getFieldValues() ) {
visit( fullyQualifiedClassName,
afv );
}
}
private void visitCompositeFactPattern( final CompositeFactPattern pattern ) {
builder.addGenerator( new Type( new ValueTypeIndexTerm( getFullyQualifiedClassName( pattern.getType() ) ) ) );
if ( pattern.getPatterns() != null ) {
for ( IFactPattern fp : pattern.getPatterns() ) {
visit( fp );
}
}
}
private void visitCompositeFieldConstraint( final CompositeFieldConstraint cfc ) {
if ( cfc.getConstraints() != null ) {
for ( int i = 0; i < cfc.getConstraints().length; i++ ) {
FieldConstraint fc = cfc.getConstraints()[ i ];
visit( fc );
}
}
}
private void visitDSLSentence( final DSLSentence sentence ) {
//TODO - Index DSLSentences
}
private void visitFactPattern( final FactPattern pattern ) {
builder.addGenerator( new Type( new ValueTypeIndexTerm( getFullyQualifiedClassName( pattern.getFactType() ) ) ) );
for ( FieldConstraint fc : pattern.getFieldConstraints() ) {
visit( fc );
}
}
private void visitFreeFormLine( final FreeFormLine ffl ) {
//TODO - Index FreeFormLines
}
private void visitFromAccumulateCompositeFactPattern( final FromAccumulateCompositeFactPattern pattern ) {
visit( pattern.getFactPattern() );
visit( pattern.getExpression() );
visit( pattern.getSourcePattern() );
}
private void visitFromCollectCompositeFactPattern( final FromCollectCompositeFactPattern pattern ) {
visit( pattern.getExpression() );
visit( pattern.getFactPattern() );
visit( pattern.getRightPattern() );
}
private void visitFromCompositeFactPattern( final FromCompositeFactPattern pattern ) {
visit( pattern.getExpression() );
visit( pattern.getFactPattern() );
}
public void visitRuleModel( final RuleModel model ) {
if ( model.attributes != null ) {
for ( int i = 0; i < model.attributes.length; i++ ) {
RuleAttribute attr = model.attributes[ i ];
visit( attr );
}
}
if ( model.lhs != null ) {
for ( int i = 0; i < model.lhs.length; i++ ) {
IPattern pattern = model.lhs[ i ];
visit( pattern );
}
}
if ( model.rhs != null ) {
for ( int i = 0; i < model.rhs.length; i++ ) {
IAction action = model.rhs[ i ];
if ( action instanceof ActionSetField ) {
final ActionSetField asf = (ActionSetField) action;
final String typeName = getTypeNameForBinding( asf.getVariable() );
if ( typeName != null ) {
final String fullyQualifiedClassName = getFullyQualifiedClassName( typeName );
visitActionFieldList( fullyQualifiedClassName,
asf );
}
} else {
visit( action );
}
}
}
}
private String getTypeNameForBinding( final String binding ) {
if ( model.getAllLHSVariables().contains( binding ) ) {
return model.getLHSBindingType( binding );
} else if ( model.getAllRHSVariables().contains( binding ) ) {
return model.getRHSBoundFact( binding ).getFactType();
}
return null;
}
private void visitSingleFieldConstraint( final SingleFieldConstraint sfc ) {
builder.addGenerator( new TypeField( new ValueFieldIndexTerm( sfc.getFieldName() ),
new ValueTypeIndexTerm( getFullyQualifiedClassName( sfc.getFieldType() ) ),
new ValueTypeIndexTerm( getFullyQualifiedClassName( sfc.getFactType() ) ) ) );
if ( sfc.getConnectives() != null ) {
for ( int i = 0; i < sfc.getConnectives().length; i++ ) {
visit( sfc.getConnectives()[ i ] );
}
}
}
private void visitConnectiveConstraint( final ConnectiveConstraint cc ) {
builder.addGenerator( new TypeField( new ValueFieldIndexTerm( cc.getFieldName() ),
new ValueTypeIndexTerm( getFullyQualifiedClassName( cc.getFieldType() ) ),
new ValueTypeIndexTerm( getFullyQualifiedClassName( cc.getFactType() ) ) ) );
}
private void visitSingleFieldConstraint( final SingleFieldConstraintEBLeftSide sfexp ) {
visit( sfexp.getExpressionLeftSide() );
visit( sfexp.getExpressionValue() );
if ( sfexp.getConnectives() != null ) {
for ( int i = 0; i < sfexp.getConnectives().length; i++ ) {
visit( sfexp.getConnectives()[ i ] );
}
}
}
private void visit( final String fullyQualifiedClassName,
final ActionFieldValue afv ) {
builder.addGenerator( new TypeField( new ValueFieldIndexTerm( afv.getField() ),
new ValueTypeIndexTerm( getFullyQualifiedClassName( afv.getType() ) ),
new ValueTypeIndexTerm( fullyQualifiedClassName ) ) );
}
private String getFullyQualifiedClassName( final String typeName ) {
if ( typeName.contains( "." ) ) {
return typeName;
}
for ( Import i : model.getImports().getImports() ) {
if ( i.getType().endsWith( typeName ) ) {
return i.getType();
}
}
final String packageName = model.getPackageName();
return ( !( packageName == null || packageName.isEmpty() ) ? packageName + "." + typeName : typeName );
}
}