/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.marmotta.ldcache.backend.kiwi.test;
import info.aduna.iteration.CloseableIteration;
import org.apache.commons.lang3.RandomStringUtils;
import org.apache.marmotta.kiwi.persistence.KiWiDialect;
import org.apache.marmotta.kiwi.persistence.h2.H2Dialect;
import org.apache.marmotta.kiwi.persistence.mysql.MySQLDialect;
import org.apache.marmotta.kiwi.persistence.pgsql.PostgreSQLDialect;
import org.apache.marmotta.kiwi.sail.KiWiStore;
import org.apache.marmotta.ldcache.api.LDCachingConnection;
import org.apache.marmotta.ldcache.backend.kiwi.LDCachingKiWiBackend;
import org.apache.marmotta.ldcache.model.CacheEntry;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestWatcher;
import org.junit.runner.Description;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.openrdf.model.Literal;
import org.openrdf.model.Statement;
import org.openrdf.model.URI;
import org.openrdf.repository.Repository;
import org.openrdf.repository.RepositoryConnection;
import org.openrdf.repository.RepositoryException;
import org.openrdf.repository.RepositoryResult;
import org.openrdf.repository.sail.SailRepository;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
/**
* This test checks if the ldcache backend works, i.e. the system properly stores cache entries and cached triples.
* It will try running over all available databases. Except for in-memory databases like
* H2 or Derby, database URLs must be passed as system property, or otherwise the test is skipped for this database.
* Available system properties:
* <ul>
* <li>PostgreSQL:
* <ul>
* <li>postgresql.url, e.g. jdbc:postgresql://localhost:5433/kiwitest?prepareThreshold=3</li>
* <li>postgresql.user (default: lmf)</li>
* <li>postgresql.pass (default: lmf)</li>
* </ul>
* </li>
* <li>MySQL:
* <ul>
* <li>mysql.url, e.g. jdbc:mysql://localhost:3306/kiwitest?characterEncoding=utf8&zeroDateTimeBehavior=convertToNull</li>
* <li>mysql.user (default: lmf)</li>
* <li>mysql.pass (default: lmf</li>
* </ul>
* </li>
* <li>H2:
* <ul>
* <li>h2.url, e.g. jdbc:h2:mem;MVCC=true;DB_CLOSE_ON_EXIT=FALSE;DB_CLOSE_DELAY=10</li>
* <li>h2.user (default: lmf)</li>
* <li>h2.pass (default: lmf</li>
* </ul>
* </li>
* </ul>
*
* <p/>
* Author: Sebastian Schaffert
*/
@RunWith(Parameterized.class)
public class LDCacheBackendTest {
public static final String CACHE_CONTEXT = "http://localhost/context/cache";
/**
* Return database configurations if the appropriate parameters have been set.
*
* @return an array (database name, url, user, password)
*/
@Parameterized.Parameters(name="Database Test {index}: {0} at {1}")
public static Iterable<Object[]> databases() {
String[] databases = {"H2", "PostgreSQL", "MySQL"};
List<Object[]> result = new ArrayList<Object[]>(databases.length);
for(String database : databases) {
if(System.getProperty(database.toLowerCase()+".url") != null) {
result.add(new Object[] {
database,
System.getProperty(database.toLowerCase()+".url"),
System.getProperty(database.toLowerCase()+".user","lmf"),
System.getProperty(database.toLowerCase()+".pass","lmf")
});
}
}
return result;
}
private KiWiDialect dialect;
private String jdbcUrl;
private String jdbcUser;
private String jdbcPass;
private KiWiStore store;
private LDCachingKiWiBackend backend;
private Repository repository;
public LDCacheBackendTest(String database, String jdbcUrl, String jdbcUser, String jdbcPass) {
this.jdbcPass = jdbcPass;
this.jdbcUrl = jdbcUrl;
this.jdbcUser = jdbcUser;
if("H2".equals(database)) {
this.dialect = new H2Dialect();
} else if("MySQL".equals(database)) {
this.dialect = new MySQLDialect();
} else if("PostgreSQL".equals(database)) {
this.dialect = new PostgreSQLDialect();
}
}
@Before
public void initDatabase() throws RepositoryException {
store = new KiWiStore("test",jdbcUrl,jdbcUser,jdbcPass,dialect, "http://localhost/context/default", "http://localhost/context/inferred");
repository = new SailRepository(store);
repository.initialize();
backend = new LDCachingKiWiBackend(store, CACHE_CONTEXT);
backend.initialize();
}
@After
public void dropDatabase() throws RepositoryException, SQLException {
backend.getPersistence().dropDatabase();
store.getPersistence().dropDatabase();
repository.shutDown();
}
final Logger logger =
LoggerFactory.getLogger(this.getClass());
@Rule
public TestWatcher watchman = new TestWatcher() {
/**
* Invoked when a test is about to start
*/
@Override
protected void starting(Description description) {
logger.info("{} being run...", description.getMethodName());
}
};
/**
* This test verifies if triples are added to the correct context using the repository connection obtained from the backend
* @throws Exception
*/
@Test
public void testStoreTriples() throws Exception {
RepositoryConnection con = backend.getCacheConnection("http://localhost/resource/1");
try {
con.begin();
URI subject = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
URI predicate = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
Literal object1 = con.getValueFactory().createLiteral(RandomStringUtils.random(64));
Literal object2 = con.getValueFactory().createLiteral(RandomStringUtils.random(64));
URI context = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
Statement stmt1 = con.getValueFactory().createStatement(subject,predicate,object1);
Statement stmt2 = con.getValueFactory().createStatement(subject,predicate,object2,context);
con.add(stmt1);
con.add(stmt2);
con.commit();
RepositoryResult<Statement> it = con.getStatements(subject,predicate,null,true);
try {
while(it.hasNext()) {
Statement next = it.next();
Assert.assertEquals(CACHE_CONTEXT, next.getContext().stringValue());
}
} finally {
it.close();
}
con.commit();
} catch(RepositoryException ex) {
con.rollback();
} finally {
con.close();
}
}
/**
* Test storing and retrieving cache entries
*
* @throws Exception
*/
@Test
public void testStoreEntries() throws Exception {
LDCachingConnection con = backend.getCacheConnection("http://localhost/resource/1");
try {
con.begin();
URI subject1 = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
URI subject2 = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
Literal object1 = con.getValueFactory().createLiteral(RandomStringUtils.random(64));
Literal object2 = con.getValueFactory().createLiteral(RandomStringUtils.random(64));
URI predicate = con.getValueFactory().createURI("http://localhost/resource/"+ RandomStringUtils.randomAlphanumeric(8));
Statement stmt1 = con.getValueFactory().createStatement(subject1,predicate,object1);
Statement stmt2 = con.getValueFactory().createStatement(subject2,predicate,object2);
con.add(stmt1);
con.add(stmt2);
con.commit();
con.begin();
CacheEntry entry1 = new CacheEntry();
entry1.setExpiryDate(new Date(System.currentTimeMillis()+1000*60));
entry1.setLastRetrieved(new Date());
entry1.setUpdateCount(1);
entry1.setResource(subject1);
entry1.setTripleCount(1);
con.addCacheEntry(subject1, entry1);
con.commit();
Assert.assertTrue(backend.isCached(subject1.stringValue()));
Assert.assertFalse(backend.isCached(subject2.stringValue()));
Assert.assertEquals(1,asList(backend.listCacheEntries()).size());
Assert.assertEquals(0,asList(backend.listExpiredEntries()).size());
con.begin();
CacheEntry entry2 = new CacheEntry();
entry2.setExpiryDate(new Date(System.currentTimeMillis() - 1000 * 60));
entry2.setLastRetrieved(new Date());
entry2.setUpdateCount(1);
entry2.setResource(subject2);
entry2.setTripleCount(1);
con.addCacheEntry(subject2,entry2);
con.commit();
Assert.assertTrue(backend.isCached(subject1.stringValue()));
Assert.assertTrue(backend.isCached(subject2.stringValue()));
Assert.assertEquals(2,asList(backend.listCacheEntries()).size());
Assert.assertEquals(1,asList(backend.listExpiredEntries()).size());
con.begin();
con.removeCacheEntry(subject1);
con.commit();
Assert.assertFalse(backend.isCached(subject1.stringValue()));
Assert.assertTrue(backend.isCached(subject2.stringValue()));
Assert.assertEquals(1,asList(backend.listCacheEntries()).size());
Assert.assertEquals(1,asList(backend.listExpiredEntries()).size());
} catch(RepositoryException ex) {
con.rollback();
} finally {
con.close();
}
}
/**
* Workaround for https://openrdf.atlassian.net/browse/SES-1702 in Sesame 2.7.0-beta1
* @param <E>
* @return
*/
public static <E,X extends Exception> List<E> asList(CloseableIteration<E,X> result) throws RepositoryException {
ArrayList<E> collection = new ArrayList<E>();
try {
try {
while (result.hasNext()) {
collection.add(result.next());
}
return collection;
} finally {
result.close();
}
} catch(Throwable ex) {
throw new RepositoryException(ex);
}
}
}