/*
* 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.enums.backend.server;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.event.Event;
import javax.inject.Inject;
import javax.inject.Named;
import org.drools.workbench.screens.enums.model.EnumModel;
import org.drools.workbench.screens.enums.model.EnumModelContent;
import org.drools.workbench.screens.enums.service.EnumService;
import org.drools.workbench.screens.enums.type.EnumResourceTypeDefinition;
import org.guvnor.common.services.backend.exceptions.ExceptionUtilities;
import org.guvnor.common.services.project.builder.events.InvalidateDMOPackageCacheEvent;
import org.guvnor.common.services.shared.file.CopyService;
import org.guvnor.common.services.shared.file.DeleteService;
import org.guvnor.common.services.shared.file.RenameService;
import org.guvnor.common.services.shared.metadata.MetadataService;
import org.guvnor.common.services.shared.metadata.model.Metadata;
import org.guvnor.common.services.shared.metadata.model.Overview;
import org.guvnor.common.services.shared.validation.model.ValidationMessage;
import org.jboss.errai.bus.server.annotations.Service;
import org.kie.api.builder.KieModule;
import org.kie.scanner.KieModuleMetaData;
import org.kie.workbench.common.services.backend.builder.LRUBuilderCache;
import org.kie.workbench.common.services.backend.service.KieService;
import org.kie.workbench.common.services.datamodel.backend.server.builder.util.DataEnumLoader;
import org.kie.workbench.common.services.shared.project.KieProject;
import org.kie.workbench.common.services.shared.project.KieProjectService;
import org.uberfire.backend.server.util.Paths;
import org.uberfire.backend.vfs.Path;
import org.uberfire.io.IOService;
import org.uberfire.java.nio.file.FileAlreadyExistsException;
import org.uberfire.workbench.events.ResourceOpenedEvent;
/**
*
*/
@Service
@ApplicationScoped
public class EnumServiceImpl extends KieService implements EnumService {
@Inject
@Named("ioStrategy")
private IOService ioService;
@Inject
private MetadataService metadataService;
@Inject
private CopyService copyService;
@Inject
private DeleteService deleteService;
@Inject
private RenameService renameService;
@Inject
private Event<InvalidateDMOPackageCacheEvent> invalidateDMOPackageCache;
@Inject
private Event<ResourceOpenedEvent> resourceOpenedEvent;
@Inject
private EnumResourceTypeDefinition resourceTypeDefinition;
@Inject
private KieProjectService projectService;
@Inject
private LRUBuilderCache builderCache;
@Override
public Path create( final Path context,
final String fileName,
final String content,
final String comment ) {
try {
final org.uberfire.java.nio.file.Path nioPath = Paths.convert( context ).resolve( fileName );
final Path newPath = Paths.convert( nioPath );
if ( ioService.exists( nioPath ) ) {
throw new FileAlreadyExistsException( nioPath.toString() );
}
ioService.write( nioPath,
content,
makeCommentedOption( comment ) );
return newPath;
} catch ( Exception e ) {
throw ExceptionUtilities.handleException( e );
}
}
@Override
public String load( final Path path ) {
try {
final String content = ioService.readAllString( Paths.convert( path ) );
return content;
} catch ( Exception e ) {
throw ExceptionUtilities.handleException( e );
}
}
@Override
public EnumModelContent loadContent( final Path path ) {
try {
//Signal opening to interested parties
resourceOpenedEvent.fire( new ResourceOpenedEvent( path,
sessionInfo ) );
String text = load( path );
return new EnumModelContent( new EnumModel( text ),
loadOverview( path,
text ) );
} catch ( Exception e ) {
throw ExceptionUtilities.handleException( e );
}
}
private Overview loadOverview( final Path path,
final String text ) {
final Overview overview = super.loadOverview( path );
overview.setPreview( text );
return overview;
}
@Override
public Path save( final Path resource,
final String content,
final Metadata metadata,
final String comment ) {
try {
ioService.write( Paths.convert( resource ),
content,
metadataService.setUpAttributes( resource,
metadata ),
makeCommentedOption( comment ) );
//Invalidate Package-level DMO cache as Enums have changed.
invalidateDMOPackageCache.fire( new InvalidateDMOPackageCacheEvent( resource ) );
return resource;
} catch ( Exception e ) {
throw ExceptionUtilities.handleException( e );
}
}
@Override
public void delete( final Path path,
final String comment ) {
try {
deleteService.delete( path,
comment );
} catch ( Exception e ) {
throw ExceptionUtilities.handleException( e );
}
}
@Override
public Path rename( final Path path,
final String newName,
final String comment ) {
try {
return renameService.rename( path,
newName,
comment );
} catch ( Exception e ) {
throw ExceptionUtilities.handleException( e );
}
}
@Override
public Path copy( final Path path,
final String newName,
final String comment ) {
try {
return copyService.copy( path,
newName,
comment );
} catch ( Exception e ) {
throw ExceptionUtilities.handleException( e );
}
}
@Override
public boolean accepts( final Path path ) {
return resourceTypeDefinition.accept( path );
}
@Override
public List<ValidationMessage> validate( final Path path ) {
try {
final String content = ioService.readAllString( Paths.convert( path ) );
return validate( path,
content );
} catch ( Exception e ) {
throw ExceptionUtilities.handleException( e );
}
}
@Override
public List<ValidationMessage> validate( final Path path,
final String content ) {
return doValidation( path,
content );
}
private List<ValidationMessage> doValidation( final Path path,
final String content ) {
try {
final KieProject project = projectService.resolveProject( path );
final KieModule module = builderCache.assertBuilder( project ).getKieModuleIgnoringErrors();
final ClassLoader classLoader = KieModuleMetaData.Factory.newKieModuleMetaData( module ).getClassLoader();
final DataEnumLoader loader = new DataEnumLoader( content,
classLoader );
if ( !loader.hasErrors() ) {
return Collections.emptyList();
} else {
final List<ValidationMessage> validationMessages = new ArrayList<ValidationMessage>();
final List<String> loaderErrors = loader.getErrors();
for ( final String message : loaderErrors ) {
validationMessages.add( makeValidationMessages( path,
message ) );
}
return validationMessages;
}
} catch ( Exception e ) {
throw ExceptionUtilities.handleException( e );
}
}
private ValidationMessage makeValidationMessages( final Path path,
final String message ) {
final ValidationMessage msg = new ValidationMessage();
msg.setPath( path );
msg.setLevel( ValidationMessage.Level.ERROR );
msg.setText( message );
return msg;
}
}