/* $HeadURL$
* $Id$
*
* Copyright (c) 2009-2010 DuraSpace
* http://duraspace.org
*
* In collaboration with Topaz Inc.
* http://www.topazproject.org
*
* Licensed 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.akubraproject.rmi;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledExecutorService;
import javax.transaction.TransactionManager;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.akubraproject.Blob;
import org.akubraproject.BlobStore;
import org.akubraproject.BlobStoreConnection;
import org.akubraproject.mem.MemBlobStore;
import org.akubraproject.tck.BtmUtils;
import org.akubraproject.txn.derby.TransactionalStore;
import org.testng.annotations.AfterSuite;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.Test;
/**
* Integration test for a transactional store on the RMI server side.
*
* @author Ronald Tschalär
* @author Pradeep Krishnan
*/
public class TransactionalStoreTest {
private URI id;
private TransactionalStore serverStore;
private BlobStore store;
private TransactionManager tm;
private AkubraRMIServer server;
@BeforeSuite
public void init() throws Exception {
/*
java.util.logging.LogManager.getLogManager().readConfiguration(
new java.io.FileInputStream("/tmp/jdklog.properties"));
*/
// set up store
id = new URI("urn:example:txnstore");
File base = new File(System.getProperty("basedir"), "target");
File dbDir = new File(base, "txn-db");
FileUtils.deleteDirectory(dbDir);
dbDir.getParentFile().mkdirs();
System.setProperty("derby.stream.error.file", new File(base, "derby.log").toString());
serverStore = new TransactionalStore(id, new MemBlobStore(), dbDir.getAbsolutePath());
// set up transaction manager
tm = BtmUtils.getTM();
int reg = ServiceTest.freePort();
server = new AkubraRMIServer(serverStore, reg);
store = AkubraRMIClient.create(URI.create("rmi://localhost:" + reg + "/" +
AkubraRMIServer.DEFAULT_SERVER_NAME), id);
}
@AfterSuite
public void destroy() throws RemoteException, NotBoundException {
server.shutDown(true);
}
/**
* Store id should be what it was initialized with.
*/
@Test
public void testGetId() {
assertEquals(id, store.getId());
}
/**
* Request to open a connection without a transaction should fail.
*/
@Test(expectedExceptions={ IOException.class })
public void testOpenConnectionNoTransaction() throws IOException {
store.openConnection(null, null);
}
/**
* Request to open a connection with a transaction is unsupported.
*/
@Test()
public void testOpenConnectionWithTransaction() throws Exception {
tm.begin();
try {
store.openConnection(tm.getTransaction(), null);
} finally {
tm.rollback();
}
}
/**
* Basic create, get, rename, delete.
*/
@Test()
public void testBasicCommit() throws Exception {
URI id = URI.create("urn:blob1");
createBlob(id, "hello", true);
getBlob(id, "hello", true);
URI id2 = URI.create("urn:blob2");
renameBlob(id, id2, "hello", true);
getBlob(id, null, true);
getBlob(id2, "hello", true);
deleteBlob(id2, true, true);
getBlob(id2, null, true);
}
/**
* Basic create, get, rename, delete with rollbacks.
*/
@Test()
public void testBasicRollback() throws Exception {
URI id = URI.create("urn:blob1");
// roll back a create
createBlob(id, "hello", false);
getBlob(id, null, false);
// create, rollback a rename
createBlob(id, "hello", true);
getBlob(id, "hello", true);
URI id2 = URI.create("urn:blob2");
renameBlob(id, id2, "hello", false);
getBlob(id, "hello", true);
getBlob(id2, null, true);
// rollback a delete
deleteBlob(id, true, false);
getBlob(id, "hello", true);
// delete
deleteBlob(id, true, true);
getBlob(id, null, true);
}
@Test
public void testMTStress() throws InterruptedException, ExecutionException {
ScheduledExecutorService executor = Executors.newScheduledThreadPool(10);
List<Future<Void>> futures = new ArrayList<Future<Void>>();
for (int loop = 0; loop < 30; loop++) {
futures.add(executor.submit(new Callable<Void>() {
public Void call() throws Exception {
for (int i = 0; i < 10; i++) {
doInTxn(new Action() {
public void run(BlobStoreConnection con) throws Exception {
for (int j = 0; j < 3; j++) {
URI id = URI.create("urn:mt:" + UUID.randomUUID());
byte[] buf = new byte[4096];
Blob b;
b = con.getBlob(id, null);
OutputStream out;
IOUtils.copyLarge(new ByteArrayInputStream(buf),
out = b.openOutputStream(buf.length, true));
out.close();
InputStream in;
assertEquals(buf, IOUtils.toByteArray(in = b.openInputStream()));
in.close();
b.delete();
}
}
}, true);
}
return null;
}
}));
}
for (Future<Void> res : futures)
res.get();
}
private void createBlob(final URI id, final String val, boolean commit) throws Exception {
doInTxn(new Action() {
public void run(BlobStoreConnection con) throws Exception {
Blob b = con.getBlob(id, null);
b.openOutputStream(-1, true).write(val.getBytes());
assertEquals(val, IOUtils.toString(con.getBlob(id, null).openInputStream()));
}
}, commit);
}
private void deleteBlob(final URI id, final boolean exists, boolean commit) throws Exception {
doInTxn(new Action() {
public void run(BlobStoreConnection con) throws Exception {
Blob blob = con.getBlob(id, null);
assertEquals(exists, blob.exists());
blob.delete();
assertFalse(blob.exists());
assertFalse(con.getBlob(id, null).exists());
}
}, commit);
}
private void getBlob(final URI id, final String val, boolean commit) throws Exception {
doInTxn(new Action() {
public void run(BlobStoreConnection con) throws Exception {
Blob b = con.getBlob(id, null);
if (val != null)
assertEquals(val, IOUtils.toString(b.openInputStream()));
else
assertFalse(b.exists());
}
}, commit);
}
private void renameBlob(final URI oldId, final URI newId, final String val, boolean commit)
throws Exception {
doInTxn(new Action() {
public void run(BlobStoreConnection con) throws Exception {
con.getBlob(oldId, null).moveTo(newId, null);
assertFalse(con.getBlob(oldId, null).exists());
Blob b = con.getBlob(newId, null);
if (val != null)
assertEquals(val, IOUtils.toString(b.openInputStream()));
else
assertFalse(b.exists());
}
}, commit);
}
private void doInTxn(Action a, boolean commit) throws Exception {
tm.begin();
BlobStoreConnection con = store.openConnection(tm.getTransaction(), null);
try {
a.run(con);
if (commit)
tm.commit();
else
tm.rollback();
} finally {
if (tm.getTransaction() != null) {
try {
tm.rollback();
} catch (Exception e) {
e.printStackTrace();
}
}
con.close();
}
}
private static interface Action {
public void run(BlobStoreConnection con) throws Exception;
}
}