/*
* 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;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.drools.workbench.models.datamodel.imports.Import;
import org.drools.workbench.models.datamodel.imports.Imports;
import org.drools.workbench.models.datamodel.rule.IAction;
import org.drools.workbench.models.datamodel.rule.IPattern;
import org.drools.workbench.models.datamodel.rule.RuleModel;
import org.drools.workbench.models.guided.dtable.shared.model.ActionCol52;
import org.drools.workbench.models.guided.dtable.shared.model.ActionInsertFactCol52;
import org.drools.workbench.models.guided.dtable.shared.model.BRLActionColumn;
import org.drools.workbench.models.guided.dtable.shared.model.BRLConditionColumn;
import org.drools.workbench.models.guided.dtable.shared.model.CompositeColumn;
import org.drools.workbench.models.guided.dtable.shared.model.GuidedDecisionTable52;
import org.drools.workbench.models.guided.dtable.shared.model.Pattern52;
import org.drools.workbench.screens.guided.rule.backend.server.GuidedRuleModelVisitor;
import org.uberfire.commons.validation.PortablePreconditions;
/**
* A RuleModel Visitor to identify fully qualified class names used by the RuleModel
*/
public class GuidedDecisionTableModelVisitor {
private final GuidedDecisionTable52 model;
private final String packageName;
private final Imports imports;
public GuidedDecisionTableModelVisitor( final GuidedDecisionTable52 model ) {
this.model = PortablePreconditions.checkNotNull( "model",
model );
this.packageName = model.getPackageName();
this.imports = model.getImports();
}
public Set<String> getConsumedModelClasses() {
final Set<String> factTypes = new HashSet<String>();
//Extract Fact Types from model
for ( CompositeColumn<?> cc : model.getPatterns() ) {
if ( cc instanceof BRLConditionColumn ) {
final List<IPattern> definition = ( (BRLConditionColumn) cc ).getDefinition();
factTypes.addAll( getConditionFactTypesFromRuleModel( definition ) );
} else if ( cc instanceof Pattern52 ) {
factTypes.add( ( (Pattern52) cc ).getFactType() );
}
}
for ( ActionCol52 c : model.getActionCols() ) {
if ( c instanceof BRLActionColumn ) {
final List<IAction> definition = ( (BRLActionColumn) c ).getDefinition();
factTypes.addAll( getActionFactTypesFromRuleModel( definition ) );
} else if ( c instanceof ActionInsertFactCol52 ) {
factTypes.add( ( (ActionInsertFactCol52) c ).getFactType() );
}
}
//Convert Fact Types into Fully Qualified Class Names
final Set<String> fullyQualifiedClassNames = new HashSet<String>();
for ( String factType : factTypes ) {
fullyQualifiedClassNames.add( convertToFullyQualifiedClassName( factType ) );
}
return fullyQualifiedClassNames;
}
//Get the fully qualified class name of the fact type
private String convertToFullyQualifiedClassName( final String factType ) {
String fullyQualifiedClassName = null;
for ( Import imp : imports.getImports() ) {
if ( imp.getType().endsWith( factType ) ) {
fullyQualifiedClassName = imp.getType();
break;
}
}
if ( fullyQualifiedClassName == null ) {
fullyQualifiedClassName = packageName + "." + factType;
}
return fullyQualifiedClassName;
}
private Set<String> getConditionFactTypesFromRuleModel( final List<IPattern> definition ) {
final RuleModel rm = new RuleModel();
rm.setPackageName( model.getPackageName() );
rm.setImports( model.getImports() );
for ( IPattern p : definition ) {
rm.addLhsItem( p );
}
final GuidedRuleModelVisitor visitor = new GuidedRuleModelVisitor( rm );
return visitor.getConsumedModelClasses();
}
private Set<String> getActionFactTypesFromRuleModel( final List<IAction> definition ) {
final RuleModel rm = new RuleModel();
rm.setPackageName( model.getPackageName() );
rm.setImports( model.getImports() );
for ( IAction a : definition ) {
rm.addRhsItem( a );
}
final GuidedRuleModelVisitor visitor = new GuidedRuleModelVisitor( rm );
return visitor.getConsumedModelClasses();
}
}