/*
* 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.jackrabbit.oak.plugins.document.blob;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Random;
import org.apache.jackrabbit.oak.plugins.document.rdb.RDBBlobStore;
import org.apache.jackrabbit.oak.plugins.document.rdb.RDBBlobStoreFriend;
import org.apache.jackrabbit.oak.plugins.document.rdb.RDBDataSourceFactory;
import org.apache.jackrabbit.oak.plugins.document.rdb.RDBOptions;
import org.apache.jackrabbit.oak.spi.blob.AbstractBlobStoreTest;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.google.common.collect.Lists;
/**
* Tests the RDBBlobStore implementation.
*/
public class RDBBlobStoreTest extends AbstractBlobStoreTest {
private RDBBlobStore blobStore;
private static final String URL = System.getProperty("rdb.jdbc-url", "jdbc:h2:mem:oakblobs");
private static final String USERNAME = System.getProperty("rdb.jdbc-user", "sa");
private static final String PASSWD = System.getProperty("rdb.jdbc-passwd", "");
private static final Logger LOG = LoggerFactory.getLogger(RDBBlobStoreTest.class);
@Before
@Override
public void setUp() throws Exception {
blobStore = new RDBBlobStore(RDBDataSourceFactory.forJdbcUrl(URL, USERNAME, PASSWD), new RDBOptions().tablePrefix("test").dropTablesOnClose(true));
blobStore.setBlockSize(128);
blobStore.setBlockSizeMin(48);
this.store = blobStore;
empty(blobStore);
}
@After
@Override
public void tearDown() throws Exception {
super.tearDown();
if (blobStore != null) {
empty(blobStore);
blobStore.close();
}
}
private static void empty(RDBBlobStore blobStore) throws Exception {
Iterator<String> iter = blobStore.getAllChunkIds(0);
List<String> ids = Lists.newArrayList();
while (iter.hasNext()) {
ids.add(iter.next());
}
blobStore.deleteChunks(ids, 0);
}
@Test
public void testBigBlob() throws Exception {
int min = 0;
int max = 8 * 1024 * 1024;
int test = 0;
while (max - min >= 2) {
test = (max + min) / 2;
byte[] data = new byte[test];
Random r = new Random(0);
r.nextBytes(data);
byte[] digest = getDigest(data);
try {
RDBBlobStoreFriend.storeBlock(blobStore, getDigest(data), 0, data);
byte[] data2 = RDBBlobStoreFriend.readBlockFromBackend(blobStore, digest);
if (!Arrays.equals(data, data2)) {
throw new Exception("data mismatch for length " + data.length);
}
min = test;
} catch (Exception ex) {
max = test;
}
}
LOG.info("max blob length for " + URL + " was " + test);
int expected = Math.max(blobStore.getBlockSize(), 2 * 1024 * 1024);
assertTrue("expected supported block size is " + expected + ", but measured: " + test, test >= expected);
}
private byte[] getDigest(byte[] bytes) throws IOException {
MessageDigest messageDigest;
try {
messageDigest = MessageDigest.getInstance("SHA-256");
} catch (NoSuchAlgorithmException e) {
throw new IOException(e);
}
messageDigest.update(bytes, 0, bytes.length);
return messageDigest.digest();
}
}