/*
* 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.core.data;
import org.apache.jackrabbit.core.RepositoryImpl;
import org.apache.jackrabbit.test.AbstractJCRTest;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Random;
import javax.jcr.Node;
import javax.jcr.Property;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.jcr.ValueFactory;
/**
* Test case for concurrent garbage collection
*/
public class GCConcurrentTest extends AbstractJCRTest {
/** logger instance */
private static final Logger LOG = LoggerFactory.getLogger(GCConcurrentTest.class);
public void testGC() throws Exception {
Node root = testRootNode;
Session session = root.getSession();
RepositoryImpl rep = (RepositoryImpl) session.getRepository();
if (rep.getDataStore() == null) {
LOG.info("testGC skipped. Data store is not used.");
return;
}
GCThread gc = new GCThread(session);
Thread gcThread = new Thread(gc, "Datastore Garbage Collector");
int len = 10 * getTestScale();
boolean started = false;
for (int i = 0; i < len; i++) {
if (!started && i > 5 + len / 100) {
started = true;
gcThread.start();
}
Node n = node(root, "test" + i);
ValueFactory vf = session.getValueFactory();
n.setProperty("data", vf.createBinary(randomInputStream(i)));
session.save();
LOG.debug("saved: " + i);
}
Thread.sleep(10);
for (int i = 0; i < len; i++) {
Node n = root.getNode("test" + i);
Property p = n.getProperty("data");
InputStream in = p.getBinary().getStream();
InputStream expected = randomInputStream(i);
checkStreams(expected, in);
n.remove();
LOG.debug("removed: " + i);
session.save();
}
Thread.sleep(10);
gc.setStop(true);
Thread.sleep(10);
gcThread.join();
gc.throwException();
}
private void checkStreams(InputStream expected, InputStream in) throws IOException {
while (true) {
int e = expected.read();
int i = in.read();
if (e < 0 || i < 0) {
if (e >= 0 || i >= 0) {
fail("expected: " + e + " got: " + i);
}
break;
} else {
assertEquals(e, i);
}
}
expected.close();
in.close();
}
static InputStream randomInputStream(long seed) {
byte[] data = new byte[4096];
new Random(seed).nextBytes(data);
return new ByteArrayInputStream(data);
}
static Node node(Node n, String x) throws RepositoryException {
return n.hasNode(x) ? n.getNode(x) : n.addNode(x);
}
static int getTestScale() {
return Integer.parseInt(System.getProperty("jackrabbit.test.scale", "1"));
}
}