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StorageConnectorTest.java
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StorageConnectorTest.java
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/**
* Copyright (C) 2022 Czech Technical University in Prague
*
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.ontodriver.rdf4j.connector;
import cz.cvut.kbss.ontodriver.config.DriverConfiguration;
import cz.cvut.kbss.ontodriver.rdf4j.config.Rdf4jConfigParam;
import cz.cvut.kbss.ontodriver.rdf4j.environment.Generator;
import cz.cvut.kbss.ontodriver.rdf4j.environment.TestUtils;
import cz.cvut.kbss.ontodriver.rdf4j.exception.Rdf4jDriverException;
import cz.cvut.kbss.ontodriver.rdf4j.exception.RepositoryCreationException;
import org.eclipse.rdf4j.common.iteration.Iterations;
import org.eclipse.rdf4j.model.Statement;
import org.eclipse.rdf4j.repository.Repository;
import org.eclipse.rdf4j.repository.RepositoryConnection;
import org.eclipse.rdf4j.repository.RepositoryException;
import org.eclipse.rdf4j.repository.config.RepositoryConfig;
import org.eclipse.rdf4j.repository.manager.RepositoryManager;
import org.eclipse.rdf4j.repository.manager.RepositoryProvider;
import org.eclipse.rdf4j.repository.sail.SailRepository;
import org.eclipse.rdf4j.repository.sail.config.SailRepositoryConfig;
import org.eclipse.rdf4j.sail.config.SailImplConfig;
import org.eclipse.rdf4j.sail.inferencer.fc.SchemaCachingRDFSInferencer;
import org.eclipse.rdf4j.sail.lucene.LuceneSail;
import org.eclipse.rdf4j.sail.memory.MemoryStore;
import org.eclipse.rdf4j.sail.nativerdf.config.NativeStoreConfig;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;
import java.lang.reflect.Field;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Collection;
import java.util.stream.Collectors;
import static org.hamcrest.CoreMatchers.containsString;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.jupiter.api.Assertions.*;
import static org.mockito.Mockito.*;
class StorageConnectorTest {
private File repositoryFolder;
private StorageConnector connector;
@AfterEach
void tearDown() throws Exception {
if (connector != null && connector.isOpen()) {
connector.close();
}
if (repositoryFolder != null && repositoryFolder.exists()) {
deleteRecursive(repositoryFolder);
}
}
private void deleteRecursive(File path) {
if (path.isDirectory()) {
if (path.listFiles() != null) {
for (File f : path.listFiles()) {
deleteRecursive(f);
}
}
}
path.delete();
}
@Test
void nonExistingParentFoldersAreCreatedWhenStorageIsInitialized() throws Exception {
final String projectRootPath = getProjectRootPath();
final URI fileUri = Paths.get(projectRootPath + File.separator + "internal" + File.separator + "folder" +
File.separator + "repositories" + File.separator + "repositoryTest").toUri();
final File parentDir = new File(projectRootPath + File.separator + "internal");
assertFalse(parentDir.exists());
this.repositoryFolder = parentDir;
connector = new StorageConnector(TestUtils.createDriverConfig(fileUri.toString()));
assertTrue(parentDir.exists());
final File repositoryDir = new File(fileUri);
assertTrue(repositoryDir.exists());
}
private String getProjectRootPath() {
String projectRootPath = new File("pom.xml").getAbsolutePath();
projectRootPath = projectRootPath.substring(0, projectRootPath.lastIndexOf(File.separator));
return projectRootPath;
}
@Test
void invalidLocalRepositoryPathThrowsRepositoryCreationException() {
final URI invalidUri = Paths.get(getProjectRootPath() + File.separator + "reps" + File.separator + "repositoryTest").toUri();
final File parentDir = new File(getProjectRootPath() + File.separator + "reps");
assertFalse(parentDir.exists());
this.repositoryFolder = parentDir;
assertThrows(RepositoryCreationException.class,
() -> new StorageConnector(TestUtils.createDriverConfig(invalidUri.toString())));
}
@Test
void connectorIsAbleToConnectToAlreadyInitializedLocalNativeStorage() throws Exception {
final String repoId = "repositoryTest";
final URI repoUri = Paths.get(getProjectRootPath() + File.separator + "repositories" + File.separator + repoId).toUri();
this.repositoryFolder = new File(getProjectRootPath() + File.separator + "repositories");
SailImplConfig backend = new NativeStoreConfig();
final SailRepositoryConfig repoType = new SailRepositoryConfig(backend);
final RepositoryConfig config = new RepositoryConfig(repoId, repoType);
final RepositoryManager repoManager = RepositoryProvider.getRepositoryManagerOfRepository(repoUri.toString());
repoManager.addRepositoryConfig(config);
repoManager.getRepository(repoId);
final StorageConnector connector = new StorageConnector(TestUtils.createDriverConfig(repoUri.toString()));
assertTrue(connector.isOpen());
connector.close();
}
@Test
void unwrapReturnsItselfWhenClassMatches() throws Exception {
createInMemoryConnector();
assertSame(connector, connector.unwrap(StorageConnector.class));
}
@Test
void unwrapReturnsUnderlyingRepository() throws Exception {
createInMemoryConnector();
final Repository repo = connector.unwrap(Repository.class);
assertNotNull(repo);
assertTrue(repo.isInitialized());
}
private void createInMemoryConnector() throws Rdf4jDriverException {
final DriverConfiguration conf = TestUtils.createDriverConfig("test");
conf.setProperty(Rdf4jConfigParam.USE_VOLATILE_STORAGE, Boolean.TRUE.toString());
this.connector = new StorageConnector(conf);
}
@Test
void unwrapOfUnsupportedClassThrowsException() throws Exception {
createInMemoryConnector();
assertThrows(Rdf4jDriverException.class, () -> connector.unwrap(Boolean.class));
}
@Test
void setRepositoryReplacesOriginalInMemoryRepositoryWithSpecifiedOne() throws Exception {
createInMemoryConnector();
final Repository newRepository = new SailRepository(new MemoryStore());
Generator.initTestData(newRepository);
connector.setRepository(newRepository);
final Collection<Statement> content = connector.findStatements(null, null, null, false);
try (RepositoryConnection conn = newRepository.getConnection()) {
assertEquals(Iterations.asList(conn.getStatements(null, null, null, false)), content);
}
}
@Test
void setRepositoryThrowsUnsupportedOperationWhenOriginalRepositoryIsNotInMemory() throws Exception {
this.repositoryFolder = Files.createTempDirectory("rdf4j-storage-connector-test").toFile();
connector = new StorageConnector(TestUtils.createDriverConfig(Paths.get(repositoryFolder
.getAbsolutePath() + File.separator + "repositories" + File.separator + "test").toUri().toString()));
final Repository newRepository = new SailRepository(new MemoryStore());
try {
final UnsupportedOperationException result =
assertThrows(UnsupportedOperationException.class, () -> connector.setRepository(newRepository));
assertEquals("Cannot replace repository which is not in-memory.", result.getMessage());
} finally {
newRepository.shutDown();
}
}
@Test
void setRepositoryThrowsIllegalStateExceptionWhenConnectorIsInTransaction() throws Exception {
createInMemoryConnector();
connector.begin();
final Repository newRepository = new SailRepository(new MemoryStore());
try {
final IllegalStateException result =
assertThrows(IllegalStateException.class, () -> connector.setRepository(newRepository));
assertEquals("Cannot replace repository in transaction.", result.getMessage());
} finally {
newRepository.shutDown();
connector.rollback();
}
}
@Test
void initializationLoadsRepositoryConfigurationFromFileOnClasspathAndCreatesRepo() throws Exception {
final DriverConfiguration conf = TestUtils.createDriverConfig("test");
conf.setProperty(Rdf4jConfigParam.REPOSITORY_CONFIG, "classpath:repo-configs/memory-rdfs.ttl");
this.connector = new StorageConnector(conf);
final Repository repo = connector.unwrap(Repository.class);
assertTrue(repo instanceof SailRepository);
assertTrue(((SailRepository) repo).getSail() instanceof SchemaCachingRDFSInferencer);
}
@Test
void initializationLoadsRepositoryConfigurationFromFileWithAbsolutePathAndCreatesRepo() throws Exception {
final Path file = Files.createTempFile("memory-rdfs", ".ttl");
try (final BufferedReader in = new BufferedReader(
new InputStreamReader(
getClass().getClassLoader().getResourceAsStream("repo-configs/memory-rdfs.ttl")))) {
final String content = in.lines().collect(Collectors.joining("\n"));
Files.write(file, content.getBytes());
}
file.toFile().deleteOnExit();
final DriverConfiguration conf = TestUtils.createDriverConfig("test");
conf.setProperty(Rdf4jConfigParam.REPOSITORY_CONFIG, file.toString());
this.connector = new StorageConnector(conf);
final Repository repo = connector.unwrap(Repository.class);
assertTrue(repo instanceof SailRepository);
assertTrue(((SailRepository) repo).getSail() instanceof SchemaCachingRDFSInferencer);
}
@Test
void initializationThrowsRepositoryCreationExceptionWhenRepositoryConfigurationFileIsNotFoundOnClasspath() {
final DriverConfiguration conf = TestUtils.createDriverConfig("test");
conf.setProperty(Rdf4jConfigParam.REPOSITORY_CONFIG, "classpath:repo-configs/memory-rdfs-unknown.ttl");
final RepositoryCreationException result =
assertThrows(RepositoryCreationException.class, () -> new StorageConnector(conf));
assertThat(result.getMessage(), containsString("repo-configs/memory-rdfs-unknown.ttl"));
}
@Test
void initializationThrowsRepositoryCreationExceptionWhenRepositoryConfigurationFileIsNotFound() {
final DriverConfiguration conf = TestUtils.createDriverConfig("test");
conf.setProperty(Rdf4jConfigParam.REPOSITORY_CONFIG, "/tmp/memory-rdfs-unknown.ttl");
final RepositoryCreationException result =
assertThrows(RepositoryCreationException.class, () -> new StorageConnector(conf));
assertThat(result.getMessage(), containsString("/tmp/memory-rdfs-unknown.ttl"));
}
@Test
void initializationLoadsRepositoryConfigurationFromFileAndCreatesNativeRepo() throws Exception {
final Path serverDir = Files.createTempDirectory("rdf4j-config-test");
this.repositoryFolder = serverDir.toFile();
final String physicalUri = Paths.get(serverDir.toAbsolutePath().toString(), File.separator + "repositories" + File.separator + "native-lucene").toUri().toString();
final DriverConfiguration conf = TestUtils.createDriverConfig(physicalUri);
conf.setProperty(Rdf4jConfigParam.REPOSITORY_CONFIG, "classpath:repo-configs/native-lucene.ttl");
this.connector = new StorageConnector(conf);
final Repository repo = connector.unwrap(Repository.class);
assertTrue(repo instanceof SailRepository);
assertTrue(((SailRepository) repo).getSail() instanceof LuceneSail);
final File repoDir = new File(URI.create(physicalUri));
assertTrue(repoDir.exists());
}
@Test
void initializationThrowsRdf4jDriverExceptionWhenReconnectAttemptsIsNotANumber() {
final DriverConfiguration conf = TestUtils.createDriverConfig("test");
conf.setProperty(Rdf4jConfigParam.RECONNECT_ATTEMPTS, "not-a-number");
conf.setProperty(Rdf4jConfigParam.USE_VOLATILE_STORAGE, Boolean.TRUE.toString());
assertThrows(Rdf4jDriverException.class, () -> new StorageConnector(conf));
}
@Test
void initializationThrowsRdf4jDriverExceptionWhenReconnectAttemptsIsNegative() {
final DriverConfiguration conf = TestUtils.createDriverConfig("test");
conf.setProperty(Rdf4jConfigParam.RECONNECT_ATTEMPTS, "-1");
conf.setProperty(Rdf4jConfigParam.USE_VOLATILE_STORAGE, Boolean.TRUE.toString());
assertThrows(Rdf4jDriverException.class, () -> new StorageConnector(conf));
}
@Test
void getConnectionRetriesOnErrorConfiguredNumberOfTimes() throws Exception {
final int attempts = 3;
final DriverConfiguration conf = TestUtils.createDriverConfig("test");
conf.setProperty(Rdf4jConfigParam.USE_VOLATILE_STORAGE, Boolean.TRUE.toString());
conf.setProperty(Rdf4jConfigParam.RECONNECT_ATTEMPTS, Integer.toString(attempts));
this.connector = new StorageConnector(conf);
final Repository repoMock = mock(Repository.class);
final Field repoField = StorageConnector.class.getDeclaredField("repository");
repoField.setAccessible(true);
((Repository) repoField.get(connector)).shutDown();
repoField.set(connector, repoMock);
when(repoMock.getConnection()).thenThrow(RepositoryException.class);
when(repoMock.isInitialized()).thenReturn(true);
assertThrows(Rdf4jDriverException.class, () -> connector.acquireConnection());
verify(repoMock, times(attempts)).getConnection();
}
}