/*
* 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.performance;
import java.util.Random;
import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
/**
* Test case that traverses 10k unstructured nodes (100x100) while
* 50 concurrent readers randomly access nodes from within this tree.
*/
public class ConcurrentReadTest extends AbstractTest {
protected static final int NODE_COUNT = 100;
private static final int READER_COUNT = getScale(20);
private Session session;
protected Node root;
public void beforeSuite() throws Exception {
session = loginWriter();
root = session.getRootNode().addNode("testroot", "nt:unstructured");
for (int i = 0; i < NODE_COUNT; i++) {
Node node = root.addNode("node" + i, "nt:unstructured");
for (int j = 0; j < NODE_COUNT; j++) {
node.addNode("node" + j, "nt:unstructured");
}
session.save();
}
for (int i = 0; i < READER_COUNT; i++) {
addBackgroundJob(new Reader());
}
}
private class Reader implements Runnable {
private final Session session = loginReader();
private final Random random = new Random();
public void run() {
try {
int i = random.nextInt(NODE_COUNT);
int j = random.nextInt(NODE_COUNT);
session.getRootNode().getNode(
"testroot/node" + i + "/node" + j);
} catch (RepositoryException e) {
throw new RuntimeException(e);
}
}
}
public void runTest() throws Exception {
Reader reader = new Reader();
for (int i = 0; i < 1000; i++) {
reader.run();
}
}
public void afterSuite() throws Exception {
for (int i = 0; i < NODE_COUNT; i++) {
root.getNode("node" + i).remove();
session.save();
}
root.remove();
session.save();
}
}