TestPackageNameDrlFileIndexer.java

/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.workbench.common.services.refactoring.backend.server.drl;

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import java.util.HashMap;
import java.util.List;

import javax.enterprise.context.ApplicationScoped;

import org.drools.compiler.compiler.DrlParser;
import org.drools.compiler.compiler.DroolsError;
import org.drools.compiler.lang.descr.PackageDescr;
import org.drools.workbench.models.commons.backend.oracle.ProjectDataModelOracleImpl;
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.oracle.ProjectDataModelOracle;
import org.guvnor.common.services.project.model.Package;
import org.guvnor.common.services.project.model.Project;
import org.kie.workbench.common.services.refactoring.backend.server.TestIndexer;
import org.kie.workbench.common.services.refactoring.backend.server.indexing.DefaultIndexBuilder;
import org.kie.workbench.common.services.refactoring.backend.server.indexing.ErrorMessageUtilities;
import org.kie.workbench.common.services.refactoring.backend.server.indexing.PackageDescrIndexVisitor;
import org.kie.workbench.common.services.refactoring.backend.server.indexing.drools.AbstractDrlFileIndexer;
import org.kie.workbench.common.services.refactoring.backend.server.util.KObjectUtil;
import org.kie.workbench.common.services.shared.project.KieProjectService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.uberfire.backend.server.util.Paths;
import org.uberfire.ext.metadata.model.KObject;
import org.uberfire.io.IOService;
import org.uberfire.java.nio.file.Path;

@ApplicationScoped
public class TestPackageNameDrlFileIndexer
        extends AbstractDrlFileIndexer
        implements TestIndexer<TestDrlFileTypeDefinition> {

    private static final Logger logger = LoggerFactory.getLogger( TestPackageNameDrlFileIndexer.class );

    private TestDrlFileTypeDefinition type;

    @Override
    public void setIOService( final IOService ioService ) {
        this.ioService = ioService;
    }

    @Override
    public void setProjectService( final KieProjectService projectService ) {
        this.projectService = projectService;
    }

    @Override
    public void setResourceTypeDefinition( final TestDrlFileTypeDefinition type ) {
        this.type = type;
    }

    @Override
    public boolean supportsPath( final Path path ) {
        return type.accept( Paths.convert( path ) );
    }

    @Override
    public KObject toKObject( final Path path ) {
        KObject index = null;

        try {
            final String drl = ioService.readAllString( path );
            final DrlParser drlParser = new DrlParser();
            final PackageDescr packageDescr = drlParser.parse( true,
                                                               drl );

            if ( drlParser.hasErrors() ) {
                final List<DroolsError> errors = drlParser.getErrors();
                logger.warn( ErrorMessageUtilities.makeErrorMessage( path,
                                                                     errors.toArray( new DroolsError[ errors.size() ] ) ) );
                return index;
            }
            if ( packageDescr == null ) {
                logger.warn( ErrorMessageUtilities.makeErrorMessage( path ) );
                return index;
            }

            final ProjectDataModelOracle dmo = getProjectDataModelOracle( path );
            final Project project = projectService.resolveProject( Paths.convert( path ) );

            // This is the reason we're overriding toKObject and not using fillDrlIndextBuilder(..)
            final Package pkg = mock( Package.class );
            when( pkg.getPackageName() ).thenReturn( packageDescr.getName() );

            final DefaultIndexBuilder builder = new DefaultIndexBuilder( Paths.convert(path).getFileName(),
                                                                         project,
                                                                         pkg );
            final PackageDescrIndexVisitor visitor = new PackageDescrIndexVisitor( dmo,
                                                                                   builder,
                                                                                   packageDescr );
            visitor.visit();

            addReferencedResourcesToIndexBuilder(builder, visitor);

            index = KObjectUtil.toKObject( path,
                                           builder.build() );

        } catch ( Exception e ) {
            logger.error( "Unable to index '" + path.toUri().toString() + "'.",
                          e );
        }

        return index;
    }

    @Override
    protected ProjectDataModelOracle getProjectDataModelOracle( Path path ) {
        final ProjectDataModelOracle dmo = new ProjectDataModelOracleImpl();
        dmo.addProjectModelFields( new HashMap<String, ModelField[]>() {{
            put( "org.kie.workbench.common.services.refactoring.backend.server.drl.classes.Applicant",
                 new ModelField[]{ new ModelField( "age",
                                                   "java.lang.Integer",
                                                   ModelField.FIELD_CLASS_TYPE.REGULAR_CLASS,
                                                   ModelField.FIELD_ORIGIN.DECLARED,
                                                   FieldAccessorsAndMutators.ACCESSOR,
                                                   DataType.TYPE_NUMERIC_INTEGER ) } );
            put( "org.kie.workbench.common.services.refactoring.backend.server.drl.classes.Mortgage",
                 new ModelField[]{ new ModelField( "amount",
                                                   "java.lang.Integer",
                                                   ModelField.FIELD_CLASS_TYPE.REGULAR_CLASS,
                                                   ModelField.FIELD_ORIGIN.DECLARED,
                                                   FieldAccessorsAndMutators.ACCESSOR,
                                                   DataType.TYPE_NUMERIC_INTEGER ) } );
            put( "org.kie.workbench.common.services.refactoring.backend.server.drl.classes.Mortgage",
                 new ModelField[]{ new ModelField( "applicant",
                                                   "org.kie.workbench.common.services.refactoring.backend.server.drl.classes.Applicant",
                                                   ModelField.FIELD_CLASS_TYPE.REGULAR_CLASS,
                                                   ModelField.FIELD_ORIGIN.DECLARED,
                                                   FieldAccessorsAndMutators.ACCESSOR,
                                                   "org.kie.workbench.common.services.refactoring.backend.server.drl.classes.Applicant" ) } );
            put( "org.kie.workbench.common.services.refactoring.backend.server.drl.classes.Bank",
                 new ModelField[]{ new ModelField( "mortgage",
                                                   "org.kie.workbench.common.services.refactoring.backend.server.drl.classes.Mortgage",
                                                   ModelField.FIELD_CLASS_TYPE.REGULAR_CLASS,
                                                   ModelField.FIELD_ORIGIN.DECLARED,
                                                   FieldAccessorsAndMutators.ACCESSOR,
                                                   "org.kie.workbench.common.services.refactoring.backend.server.drl.classes.Mortgage" ) } );
        }} );
        return dmo;
    }

    /* (non-Javadoc)
     * @see org.kie.workbench.common.services.refactoring.backend.server.indexing.AbstractFileIndexer#fillIndexBuilder(org.uberfire.java.nio.file.Path)
     */
    @Override
    protected DefaultIndexBuilder fillIndexBuilder(Path path) throws Exception {
        // not used here because we're also overriding toKObject(Path)
        return null;
    }

}