| /* |
| * Copyright (c) 2008, Niclas Hedhman. All Rights Reserved. |
| * |
| * 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.apache.zest.library.rdf.repository; |
| |
| import java.io.File; |
| import org.openrdf.model.ValueFactory; |
| import org.openrdf.repository.Repository; |
| import org.openrdf.repository.RepositoryConnection; |
| import org.openrdf.repository.RepositoryException; |
| import org.openrdf.repository.sail.SailRepository; |
| import org.openrdf.sail.nativerdf.NativeStore; |
| import org.apache.zest.api.activation.ActivatorAdapter; |
| import org.apache.zest.api.activation.Activators; |
| import org.apache.zest.api.common.Optional; |
| import org.apache.zest.api.configuration.Configuration; |
| import org.apache.zest.api.injection.scope.Service; |
| import org.apache.zest.api.injection.scope.This; |
| import org.apache.zest.api.mixin.Mixins; |
| import org.apache.zest.api.service.Availability; |
| import org.apache.zest.api.service.ServiceComposite; |
| import org.apache.zest.api.service.ServiceReference; |
| import org.apache.zest.library.fileconfig.FileConfiguration; |
| |
| @Mixins( { NativeRepositoryService.NativeRepositoryMixin.class } ) |
| @Activators( NativeRepositoryService.Activator.class ) |
| public interface NativeRepositoryService extends Repository, ServiceComposite, Availability |
| { |
| @Override |
| void initialize() |
| throws RepositoryException; |
| |
| @Override |
| void shutDown() |
| throws RepositoryException; |
| |
| public static class Activator |
| extends ActivatorAdapter<ServiceReference<NativeRepositoryService>> |
| { |
| |
| @Override |
| public void afterActivation( ServiceReference<NativeRepositoryService> activated ) |
| throws Exception |
| { |
| activated.get().initialize(); |
| } |
| |
| @Override |
| public void beforePassivation( ServiceReference<NativeRepositoryService> passivating ) |
| throws Exception |
| { |
| passivating.get().shutDown(); |
| } |
| } |
| |
| public static abstract class NativeRepositoryMixin |
| implements NativeRepositoryService, ResetableRepository |
| { |
| @Optional |
| @Service |
| FileConfiguration fileConfiguration; |
| |
| @This |
| private Configuration<NativeConfiguration> configuration; |
| |
| private SailRepository repo; |
| private boolean isNotInitialized; |
| |
| public NativeRepositoryMixin() |
| { |
| isNotInitialized = true; |
| repo = new SailRepository( new NativeStore() ); |
| } |
| |
| @Override |
| public void setDataDir( File dataDir ) |
| { |
| repo.setDataDir( dataDir ); |
| } |
| |
| @Override |
| public File getDataDir() |
| { |
| return repo.getDataDir(); |
| } |
| |
| @Override |
| public void initialize() |
| throws RepositoryException |
| { |
| String dataDir = configuration.get().dataDirectory().get(); |
| File dataDirectory; |
| if( dataDir == null || "".equals( dataDir ) ) |
| { |
| String serviceIdentity = configuration.get().identity().get(); |
| if( fileConfiguration != null ) |
| { |
| dataDir = new File( fileConfiguration.dataDirectory(), serviceIdentity ).getAbsolutePath(); |
| } |
| else |
| { |
| if( serviceIdentity == null || "".equals( serviceIdentity ) ) |
| { |
| dataDir = "./rdf/repositories/qi4j"; |
| } |
| else |
| { |
| dataDir = "./rdf/repositories/" + serviceIdentity; |
| } |
| } |
| configuration.get().dataDirectory().set( dataDir ); |
| configuration.save(); |
| dataDirectory = new File( dataDir ); |
| } |
| else |
| { |
| dataDirectory = new File( dataDir ).getAbsoluteFile(); |
| } |
| initializeRepository( dataDirectory ); |
| } |
| |
| @Override |
| public boolean isInitialized() |
| { |
| return !isNotInitialized; |
| } |
| |
| @Override |
| public void shutDown() |
| throws RepositoryException |
| { |
| repo.shutDown(); |
| } |
| |
| @Override |
| public boolean isWritable() |
| throws RepositoryException |
| { |
| return repo.isWritable(); |
| } |
| |
| @Override |
| public RepositoryConnection getConnection() |
| throws RepositoryException |
| { |
| if( isNotInitialized ) |
| { |
| return null; |
| } |
| return repo.getConnection(); |
| } |
| |
| @Override |
| public ValueFactory getValueFactory() |
| { |
| return repo.getValueFactory(); |
| } |
| |
| @Override |
| public void discardEntireRepository() |
| throws RepositoryException |
| { |
| File dataDir = repo.getDataDir(); |
| repo.shutDown(); |
| delete( dataDir ); |
| initializeRepository( dataDir ); |
| } |
| |
| private void delete( File dataDir ) |
| { |
| File[] children = dataDir.listFiles(); |
| for( File child : children ) |
| { |
| if( child.isDirectory() ) |
| { |
| delete( child ); |
| } |
| else |
| { |
| //noinspection ResultOfMethodCallIgnored |
| child.delete(); |
| } |
| } |
| } |
| |
| private void initializeRepository( File dataDir ) |
| throws RepositoryException |
| { |
| String tripleIndexes = configuration.get().tripleIndexes().get(); |
| if( tripleIndexes == null ) |
| { |
| tripleIndexes = ""; |
| configuration.get().tripleIndexes().set( tripleIndexes ); |
| } |
| boolean forceSync = configuration.get().forceSync().get(); |
| |
| NativeStore store = (NativeStore) repo.getSail(); |
| store.setDataDir( dataDir ); |
| store.setTripleIndexes( tripleIndexes ); |
| store.setForceSync( forceSync ); |
| repo.initialize(); |
| isNotInitialized = false; |
| } |
| |
| @Override |
| public boolean isAvailable() |
| { |
| return !isNotInitialized; |
| } |
| } |
| } |