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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 2002,2010 Oracle. All rights reserved.
*
* $Id: TwoPCTest.java,v 1.10.2.2 2010/01/04 15:30:48 cwl Exp $
*/
package com.sleepycat.je.txn;
import java.io.File;
import java.io.IOException;
import javax.transaction.xa.XAResource;
import junit.framework.TestCase;
import com.sleepycat.je.Database;
import com.sleepycat.je.DatabaseConfig;
import com.sleepycat.je.DatabaseException;
import com.sleepycat.je.EnvironmentConfig;
import com.sleepycat.je.Transaction;
import com.sleepycat.je.TransactionStats;
import com.sleepycat.je.XAEnvironment;
import com.sleepycat.je.log.FileManager;
import com.sleepycat.je.log.LogUtils.XidImpl;
import com.sleepycat.je.util.StringDbt;
import com.sleepycat.je.util.TestUtils;
/*
* Simple 2PC transaction testing.
*/
public class TwoPCTest extends TestCase {
private File envHome;
private XAEnvironment env;
private Database db;
public TwoPCTest()
throws DatabaseException {
envHome = new File(System.getProperty(TestUtils.DEST_DIR));
}
public void setUp()
throws IOException, DatabaseException {
TestUtils.removeFiles("Setup", envHome, FileManager.JE_SUFFIX);
EnvironmentConfig envConfig = TestUtils.initEnvConfig();
envConfig.setTransactional(true);
envConfig.setAllowCreate(true);
env = new XAEnvironment(envHome, envConfig);
DatabaseConfig dbConfig = new DatabaseConfig();
dbConfig.setTransactional(true);
dbConfig.setAllowCreate(true);
db = env.openDatabase(null, "foo", dbConfig);
}
public void tearDown()
throws IOException, DatabaseException {
db.close();
env.close();
TestUtils.removeFiles("TearDown", envHome, FileManager.JE_SUFFIX);
}
/**
* Basic Two Phase Commit calls.
*/
public void testBasic2PC()
throws Throwable {
try {
TransactionStats stats =
env.getTransactionStats(TestUtils.FAST_STATS);
int numBegins = 2; // 1 for setting up XA env and 1 for open db
int numCommits = 2;
int numXAPrepares = 0;
int numXACommits = 0;
assertEquals(numBegins, stats.getNBegins());
assertEquals(numCommits, stats.getNCommits());
assertEquals(numXAPrepares, stats.getNXAPrepares());
assertEquals(numXACommits, stats.getNXACommits());
Transaction txn = env.beginTransaction(null, null);
stats = env.getTransactionStats(TestUtils.FAST_STATS);
numBegins++;
assertEquals(numBegins, stats.getNBegins());
assertEquals(numCommits, stats.getNCommits());
assertEquals(numXAPrepares, stats.getNXAPrepares());
assertEquals(numXACommits, stats.getNXACommits());
assertEquals(1, stats.getNActive());
XidImpl xid = new XidImpl(1, "TwoPCTest1".getBytes(), null);
env.setXATransaction(xid, txn);
stats = env.getTransactionStats(TestUtils.FAST_STATS);
assertEquals(numBegins, stats.getNBegins());
assertEquals(numCommits, stats.getNCommits());
assertEquals(numXAPrepares, stats.getNXAPrepares());
assertEquals(numXACommits, stats.getNXACommits());
assertEquals(1, stats.getNActive());
StringDbt key = new StringDbt("key");
StringDbt data = new StringDbt("data");
db.put(txn, key, data);
stats = env.getTransactionStats(TestUtils.FAST_STATS);
assertEquals(numBegins, stats.getNBegins());
assertEquals(numCommits, stats.getNCommits());
assertEquals(numXAPrepares, stats.getNXAPrepares());
assertEquals(numXACommits, stats.getNXACommits());
assertEquals(1, stats.getNActive());
env.prepare(xid);
numXAPrepares++;
stats = env.getTransactionStats(TestUtils.FAST_STATS);
assertEquals(numBegins, stats.getNBegins());
assertEquals(numCommits, stats.getNCommits());
assertEquals(numXAPrepares, stats.getNXAPrepares());
assertEquals(numXACommits, stats.getNXACommits());
assertEquals(1, stats.getNActive());
env.commit(xid, false);
numCommits++;
numXACommits++;
stats = env.getTransactionStats(TestUtils.FAST_STATS);
assertEquals(numBegins, stats.getNBegins());
assertEquals(numCommits, stats.getNCommits());
assertEquals(numXAPrepares, stats.getNXAPrepares());
assertEquals(numXACommits, stats.getNXACommits());
assertEquals(0, stats.getNActive());
} catch (Exception E) {
System.out.println("caught " + E);
}
}
/**
* Basic readonly-prepare.
*/
public void testROPrepare()
throws Throwable {
try {
Transaction txn = env.beginTransaction(null, null);
XidImpl xid = new XidImpl(1, "TwoPCTest1".getBytes(), null);
env.setXATransaction(xid, txn);
assertEquals(XAResource.XA_RDONLY, env.prepare(xid));
} catch (Exception E) {
System.out.println("caught " + E);
}
}
/**
* Test calling prepare twice (should throw exception).
*/
public void testTwicePreparedTransaction()
throws Throwable {
Transaction txn = env.beginTransaction(null, null);
XidImpl xid = new XidImpl(1, "TwoPCTest2".getBytes(), null);
env.setXATransaction(xid, txn);
StringDbt key = new StringDbt("key");
StringDbt data = new StringDbt("data");
db.put(txn, key, data);
try {
env.prepare(xid);
env.prepare(xid);
fail("should not be able to prepare twice");
} catch (Exception E) {
env.commit(xid, false);
}
}
/**
* Test calling rollback(xid) on an unregistered xa txn.
*/
public void testRollbackNonExistent()
throws Throwable {
Transaction txn = env.beginTransaction(null, null);
StringDbt key = new StringDbt("key");
StringDbt data = new StringDbt("data");
db.put(txn, key, data);
XidImpl xid = new XidImpl(1, "TwoPCTest2".getBytes(), null);
try {
env.rollback(xid);
fail("should not be able to call rollback on an unknown xid");
} catch (Exception E) {
}
txn.abort();
}
/**
* Test calling commit(xid) on an unregistered xa txn.
*/
public void testCommitNonExistent()
throws Throwable {
Transaction txn = env.beginTransaction(null, null);
StringDbt key = new StringDbt("key");
StringDbt data = new StringDbt("data");
db.put(txn, key, data);
XidImpl xid = new XidImpl(1, "TwoPCTest2".getBytes(), null);
try {
env.commit(xid, false);
fail("should not be able to call commit on an unknown xid");
} catch (Exception E) {
}
txn.abort();
}
}
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