private void testReuseSpace() {
String fileName = getBaseDir() + "/testReuseSpace.h3";
FileUtils.delete(fileName);
long initialLength = 0;
for (int j = 0; j < 20; j++) {
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 10; i++) {
m.put(i, "Hello");
}
s.store();
for (int i = 0; i < 10; i++) {
assertEquals("Hello", m.get(i));
assertEquals("Hello", m.remove(i));
}
s.store();
s.close();
long len = FileUtils.size(fileName);
if (initialLength == 0) {
initialLength = len;
} else {
assertTrue(len <= initialLength * 2);
}
}
}
@Override
public void test() throws Exception {
FileUtils.deleteRecursive(getBaseDir(), true);
FileUtils.createDirectories(getBaseDir());
FileUtils.deleteRecursive("memFS:", false);
testConcurrentFree();
testConcurrentStoreAndRemoveMap();
testConcurrentStoreAndClose();
testConcurrentOnlineBackup();
testConcurrentMap();
testConcurrentIterate();
testConcurrentWrite();
testConcurrentRead();
}
private void testIterateOverChanges() {
String fileName = getBaseDir() + "/testIterate.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
s.setMaxPageSize(6);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 100; i++) {
m.put(i, "Hi");
}
s.incrementVersion();
s.store();
for (int i = 20; i < 40; i++) {
assertEquals("Hi", m.put(i, "Hello"));
}
long old = s.getCurrentVersion();
s.incrementVersion();
for (int i = 10; i < 15; i++) {
m.put(i, "Hallo");
}
m.put(50, "Hallo");
for (int i = 90; i < 93; i++) {
assertEquals("Hi", m.remove(i));
}
assertEquals(null, m.put(100, "Hallo"));
Iterator<Integer> it = m.changeIterator(old);
ArrayList<Integer> list = New.arrayList();
while (it.hasNext()) {
list.add(it.next());
}
assertEquals("[10, 11, 12, 13, 14, 50, 100, 90, 91, 92]", list.toString());
s.close();
}
private void testLargeImport() {
String fileName = getBaseDir() + "/testImport.h3";
int len = 1000;
for (int j = 0; j < 5; j++) {
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
// s.setCompressor(null);
s.setMaxPageSize(40);
MVMap<Integer, Object[]> m = s.openMap("data", "", "i", "r(i,,)");
// Profiler prof = new Profiler();
// prof.startCollecting();
// long t = System.currentTimeMillis();
for (int i = 0; i < len; ) {
Object[] o = new Object[3];
o[0] = i;
o[1] = "Hello World";
o[2] = "World";
m.put(i, o);
i++;
if (i % 10000 == 0) {
s.store();
}
}
s.store();
s.close();
// System.out.println(prof.getTop(5));
// System.out.println("store time " + (System.currentTimeMillis() - t));
// System.out.println("store size " + FileUtils.size(fileName));
}
}
private void testTransfer() throws Exception {
Server server = new Server();
server.setOut(new PrintStream(new ByteArrayOutputStream()));
server.runTool("-web", "-webPort", "8182", "-properties", "null");
File transfer = new File("transfer");
transfer.mkdirs();
try {
FileOutputStream f = new FileOutputStream("transfer/test.txt");
f.write("Hello World".getBytes());
f.close();
WebClient client = new WebClient();
String url = "http://localhost:8182";
String result = client.get(url);
client.readSessionId(result);
String test = client.get(url, "transfer/test.txt");
assertEquals("Hello World", test);
new File("transfer/testUpload.txt").delete();
client.upload(
url + "/transfer/testUpload.txt",
"testUpload.txt",
new ByteArrayInputStream("Hallo Welt".getBytes()));
byte[] d = IOUtils.readBytesAndClose(new FileInputStream("transfer/testUpload.txt"), -1);
assertEquals("Hallo Welt", new String(d));
new File("transfer/testUpload.txt").delete();
} finally {
server.shutdown();
FileUtils.deleteRecursive("transfer", true);
}
}
private void testSimple() {
String fileName = getBaseDir() + "/testSimple.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 3; i++) {
m.put(i, "hello " + i);
}
s.store();
assertEquals("hello 0", m.remove(0));
assertNull(m.get(0));
for (int i = 1; i < 3; i++) {
assertEquals("hello " + i, m.get(i));
}
s.store();
s.close();
s = openStore(fileName);
m = s.openMap("data", Integer.class, String.class);
assertNull(m.get(0));
for (int i = 1; i < 3; i++) {
assertEquals("hello " + i, m.get(i));
}
s.close();
}
private void testIterate() {
String fileName = getBaseDir() + "/testIterate.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
Iterator<Integer> it = m.keyIterator(null);
assertFalse(it.hasNext());
for (int i = 0; i < 10; i++) {
m.put(i, "hello " + i);
}
s.store();
it = m.keyIterator(null);
it.next();
assertThrows(UnsupportedOperationException.class, it).remove();
it = m.keyIterator(null);
for (int i = 0; i < 10; i++) {
assertTrue(it.hasNext());
assertEquals(i, it.next().intValue());
}
assertFalse(it.hasNext());
assertNull(it.next());
for (int j = 0; j < 10; j++) {
it = m.keyIterator(j);
for (int i = j; i < 10; i++) {
assertTrue(it.hasNext());
assertEquals(i, it.next().intValue());
}
assertFalse(it.hasNext());
}
s.close();
}
private void testSetting() {
String fileName = getBaseDir() + "/testSetting.h3";
FileUtils.delete(fileName);
MVStore s = MVStore.open(fileName);
assertEquals(0, s.getCurrentVersion());
assertEquals(0, s.getStoreVersion());
s.setStoreVersion(1);
assertEquals(null, s.getSetting("hello"));
s.setSetting("test", "Hello");
assertEquals("Hello", s.getSetting("test"));
s.close();
s = MVStore.open(fileName);
assertEquals(0, s.getCurrentVersion());
assertEquals(0, s.getStoreVersion());
s.setStoreVersion(1);
assertEquals(null, s.getSetting("hello"));
s.setSetting("test", "Hello");
assertEquals("Hello", s.getSetting("test"));
s.store();
s.close();
s = MVStore.open(fileName);
assertEquals(1, s.getCurrentVersion());
assertEquals(1, s.getStoreVersion());
assertEquals("Hello", s.getSetting("test"));
s.close();
}
private void testConcurrentStoreAndRemoveMap() throws InterruptedException {
String fileName = "memFS:testConcurrentStoreAndRemoveMap.h3";
final MVStore s = openStore(fileName);
int count = 200;
for (int i = 0; i < count; i++) {
MVMap<Integer, Integer> m = s.openMap("d" + i);
m.put(1, 1);
}
final AtomicInteger counter = new AtomicInteger();
Task task =
new Task() {
@Override
public void call() throws Exception {
while (!stop) {
counter.incrementAndGet();
s.commit();
}
}
};
task.execute();
Thread.sleep(1);
for (int i = 0; i < count || counter.get() < count; i++) {
MVMap<Integer, Integer> m = s.openMap("d" + i);
m.put(1, 10);
s.removeMap(m);
if (task.isFinished()) {
break;
}
}
task.get();
s.close();
FileUtils.deleteRecursive("memFS:", false);
}
private static String createTempLobFileName(DataHandler handler) throws IOException {
String path = handler.getDatabasePath();
if (path.length() == 0) {
path = SysProperties.PREFIX_TEMP_FILE;
}
return FileUtils.createTempFile(path, Constants.SUFFIX_TEMP_FILE, true, true);
}
private void testFastDelete() {
String fileName = getBaseDir() + "/testFastDelete.h3";
FileUtils.delete(fileName);
MVStore s;
MVMap<Integer, String> m;
s = openStore(fileName);
s.setMaxPageSize(100);
m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 1000; i++) {
m.put(i, "Hello World");
assertEquals(i + 1, m.size());
}
assertEquals(1000, m.size());
s.store();
assertEquals(3, s.getWriteCount());
s.close();
s = openStore(fileName);
m = s.openMap("data", Integer.class, String.class);
m.clear();
assertEquals(0, m.size());
s.store();
// ensure only nodes are read, but not leaves
assertEquals(4, s.getReadCount());
assertEquals(2, s.getWriteCount());
s.close();
}
private void testErrorMessageWrongSplit() throws Exception {
if (config.memory || config.reopen) {
return;
}
FileUtils.delete("split:" + getBaseDir() + "/openClose2.h2.db");
Connection conn;
conn = DriverManager.getConnection("jdbc:h2:split:18:" + getBaseDir() + "/openClose2");
conn.createStatement()
.execute("create table test(id int, name varchar) as select 1, space(1000000)");
conn.close();
FileChannel c = FileUtils.open(getBaseDir() + "/openClose2.h2.db.1.part", "rw");
c.position(c.size() * 2 - 1);
c.write(ByteBuffer.wrap(new byte[1]));
c.close();
assertThrows(ErrorCode.IO_EXCEPTION_2, this)
.getConnection("jdbc:h2:split:18:" + getBaseDir() + "/openClose2");
FileUtils.delete("split:" + getBaseDir() + "/openClose2.h2.db");
}
private boolean openWriter() {
if (printWriter == null) {
try {
FileUtils.createDirectories(FileUtils.getParent(fileName));
if (FileUtils.exists(fileName) && !FileUtils.canWrite(fileName)) {
// read only database: don't log error if the trace file
// can't be opened
return false;
}
fileWriter = IOUtils.getBufferedWriter(FileUtils.newOutputStream(fileName, true));
printWriter = new PrintWriter(fileWriter, true);
} catch (Exception e) {
logWritingError(e);
return false;
}
}
return true;
}
private static void removeIndexFiles(Connection conn) throws SQLException {
String path = getIndexPath(conn);
IndexAccess access = INDEX_ACCESS.get(path);
if (access != null) {
removeIndexAccess(access, path);
}
if (!path.startsWith(IN_MEMORY_PREFIX)) {
FileUtils.deleteRecursive(path, false);
}
}
private void testDefragment() {
String fileName = getBaseDir() + "/testDefragment.h3";
FileUtils.delete(fileName);
long initialLength = 0;
for (int j = 0; j < 20; j++) {
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 10; i++) {
m.put(j + i, "Hello " + j);
}
s.store();
s.compact(80);
s.close();
long len = FileUtils.size(fileName);
// System.out.println(" len:" + len);
if (initialLength == 0) {
initialLength = len;
} else {
assertTrue("initial: " + initialLength + " len: " + len, len <= initialLength * 3);
}
}
// long len = FileUtils.size(fileName);
// System.out.println("len0: " + len);
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 100; i++) {
m.remove(i);
}
s.store();
s.compact(80);
s.close();
// len = FileUtils.size(fileName);
// System.out.println("len1: " + len);
s = openStore(fileName);
m = s.openMap("data", Integer.class, String.class);
s.compact(80);
s.close();
// len = FileUtils.size(fileName);
// System.out.println("len2: " + len);
}
private void testConcurrentStoreAndClose() throws InterruptedException {
String fileName = "memFS:testConcurrentStoreAndClose";
for (int i = 0; i < 10; i++) {
FileUtils.delete(fileName);
final MVStore s = openStore(fileName);
final AtomicInteger counter = new AtomicInteger();
Task task =
new Task() {
@Override
public void call() throws Exception {
while (!stop) {
s.setStoreVersion(counter.incrementAndGet());
s.commit();
}
}
};
task.execute();
while (counter.get() < 5) {
Thread.sleep(1);
}
try {
s.close();
// sometimes closing works, in which case
// storing must fail at some point (not necessarily
// immediately)
for (int x = counter.get(), y = x; x <= y + 2; x++) {
Thread.sleep(1);
}
Exception e = task.getException();
assertEquals(DataUtils.ERROR_CLOSED, DataUtils.getErrorCode(e.getMessage()));
} catch (IllegalStateException e) {
// sometimes storing works, in which case
// closing must fail
assertEquals(DataUtils.ERROR_WRITING_FAILED, DataUtils.getErrorCode(e.getMessage()));
task.get();
}
s.close();
}
FileUtils.deleteRecursive("memFS:", false);
}
@Override
public void test() throws Exception {
FileUtils.createDirectories(getBaseDir());
testStopWhileCommitting();
testGetModifiedMaps();
testKeyIterator();
testMultiStatement();
testTwoPhaseCommit();
testSavepoint();
testConcurrentTransactionsReadCommitted();
testSingleConnection();
testCompareWithPostgreSQL();
}
private void testTruncateFile() {
String fileName = getBaseDir() + "/testTruncate.h3";
FileUtils.delete(fileName);
MVStore s;
MVMap<Integer, String> m;
s = openStore(fileName);
m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 1000; i++) {
m.put(i, "Hello World");
}
s.store();
s.close();
long len = FileUtils.size(fileName);
s = openStore(fileName);
m = s.openMap("data", Integer.class, String.class);
m.clear();
s.store();
s.compact(100);
s.close();
long len2 = FileUtils.size(fileName);
assertTrue(len2 < len);
}
private void testCloseTwice() {
String fileName = getBaseDir() + "/testCloseTwice.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
for (int i = 0; i < 3; i++) {
m.put(i, "hello " + i);
}
s.store();
// closing twice should be fine
s.close();
s.close();
}
private void testVersion() {
String fileName = getBaseDir() + "/testVersion.h3";
FileUtils.delete(fileName);
MVStore s;
s = openStore(fileName);
MVMap<String, String> m;
s = openStore(fileName);
m = s.openMap("data", String.class, String.class);
long first = s.getCurrentVersion();
s.incrementVersion();
m.put("1", "Hello");
m.put("2", "World");
for (int i = 10; i < 20; i++) {
m.put("" + i, "data");
}
long old = s.getCurrentVersion();
s.incrementVersion();
m.put("1", "Hallo");
m.put("2", "Welt");
MVMap<String, String> mFirst;
mFirst = m.openVersion(first);
assertEquals(0, mFirst.size());
MVMap<String, String> mOld;
assertEquals("Hallo", m.get("1"));
assertEquals("Welt", m.get("2"));
mOld = m.openVersion(old);
assertEquals("Hello", mOld.get("1"));
assertEquals("World", mOld.get("2"));
assertTrue(mOld.isReadOnly());
s.getCurrentVersion();
s.setRetainChunk(0);
long old2 = s.store();
// the old version is still available
assertEquals("Hello", mOld.get("1"));
assertEquals("World", mOld.get("2"));
m.put("1", "Hi");
assertEquals("Welt", m.remove("2"));
s.store();
s.close();
s = openStore(fileName);
m = s.openMap("data", String.class, String.class);
assertEquals("Hi", m.get("1"));
assertEquals(null, m.get("2"));
mOld = m.openVersion(old2);
assertEquals("Hallo", mOld.get("1"));
assertEquals("Welt", mOld.get("2"));
s.close();
}
@Override
public void test() throws Exception {
if (!SysProperties.MODIFY_ON_WRITE) {
return;
}
deleteDb("modifyOnWrite");
String dbFile = getBaseDir() + "/modifyOnWrite.h2.db";
assertFalse(FileUtils.exists(dbFile));
Connection conn = getConnection("modifyOnWrite");
Statement stat = conn.createStatement();
stat.execute("create table test(id int)");
conn.close();
byte[] test = IOUtils.readBytesAndClose(FileUtils.newInputStream(dbFile), -1);
conn = getConnection("modifyOnWrite");
stat = conn.createStatement();
ResultSet rs;
rs = stat.executeQuery("select * from test");
assertFalse(rs.next());
conn.close();
assertTrue(FileUtils.exists(dbFile));
byte[] test2 = IOUtils.readBytesAndClose(FileUtils.newInputStream(dbFile), -1);
assertEquals(test, test2);
conn = getConnection("modifyOnWrite");
stat = conn.createStatement();
stat.execute("insert into test values(1)");
conn.close();
conn = getConnection("modifyOnWrite");
stat = conn.createStatement();
rs = stat.executeQuery("select * from test");
assertTrue(rs.next());
conn.close();
test2 = IOUtils.readBytesAndClose(FileUtils.newInputStream(dbFile), -1);
assertFalse(Utils.compareSecure(test, test2));
}
private synchronized void writeFile(String s, Throwable t) {
try {
if (checkSize++ >= CHECK_SIZE_EACH_WRITES) {
checkSize = 0;
closeWriter();
if (maxFileSize > 0 && FileUtils.size(fileName) > maxFileSize) {
String old = fileName + ".old";
FileUtils.delete(old);
FileUtils.move(fileName, old);
}
}
if (!openWriter()) {
return;
}
printWriter.println(s);
if (t != null) {
if (levelFile == ERROR && t instanceof JdbcSQLException) {
JdbcSQLException se = (JdbcSQLException) t;
int code = se.getErrorCode();
if (ErrorCode.isCommon(code)) {
printWriter.println(t.toString());
} else {
t.printStackTrace(printWriter);
}
} else {
t.printStackTrace(printWriter);
}
}
printWriter.flush();
if (closed) {
closeWriter();
}
} catch (Exception e) {
logWritingError(e);
}
}
/**
* Get the unique and normalized database name (excluding settings).
*
* @return the database name
*/
public String getName() {
if (!persistent) {
return name;
}
if (nameNormalized == null) {
if (!SysProperties.IMPLICIT_RELATIVE_PATH) {
if (!FileUtils.isAbsolute(name)) {
if (name.indexOf("./") < 0
&& name.indexOf(".\\") < 0
&& name.indexOf(":/") < 0
&& name.indexOf(":\\") < 0) {
// the name could start with "./", or
// it could start with a prefix such as "nio:./"
// for Windows, the path "\test" is not considered
// absolute as the drive letter is missing,
// but we consider it absolute
throw DbException.get(ErrorCode.URL_RELATIVE_TO_CWD, originalURL);
}
}
}
String suffix = Constants.SUFFIX_PAGE_FILE;
String n;
if (FileUtils.exists(name + suffix)) {
n = FileUtils.toRealPath(name + suffix);
} else {
suffix = Constants.SUFFIX_MV_FILE;
n = FileUtils.toRealPath(name + suffix);
}
String fileName = FileUtils.getName(n);
if (fileName.length() < suffix.length() + 1) { // 例如: 没有设置baseDir且dbName="./"时
throw DbException.get(ErrorCode.INVALID_DATABASE_NAME_1, name);
}
nameNormalized = n.substring(0, n.length() - suffix.length());
}
return nameNormalized;
}
@Override
public void remove() {
if (fileName != null) {
if (tempFile != null) {
tempFile.stopAutoDelete();
}
// synchronize on the database, to avoid concurrent temp file
// creation / deletion / backup
synchronized (handler.getLobSyncObject()) {
FileUtils.delete(fileName);
}
}
if (handler != null) {
handler.getLobStorage().removeLob(this);
}
}
private void testExample() {
String fileName = getBaseDir() + "/testExample.h3";
FileUtils.delete(fileName);
// open the store (in-memory if fileName is null)
MVStore s = MVStore.open(fileName);
// create/get the map "data"
// the String.class, String.class will be optional later
MVMap<String, String> map = s.openMap("data", String.class, String.class);
// add some data
map.put("1", "Hello");
map.put("2", "World");
// get the current version, for later use
long oldVersion = s.getCurrentVersion();
// from now on, the old version is read-only
s.incrementVersion();
// more changes, in the new version
// changes can be rolled back if required
// changes always go into 'head' (the newest version)
map.put("1", "Hi");
map.remove("2");
// access the old data (before incrementVersion)
MVMap<String, String> oldMap = map.openVersion(oldVersion);
// store the newest data to disk
s.store();
// print the old version (can be done
// concurrently with further modifications)
// this will print Hello World
// System.out.println(oldMap.get("1"));
// System.out.println(oldMap.get("2"));
oldMap.close();
// print the newest version ("Hi")
// System.out.println(map.get("1"));
// close the store - this doesn't write to disk
s.close();
}
private void testBtreeStore() {
String fileName = getBaseDir() + "/testBtreeStore.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
s.close();
s = openStore(fileName);
MVMap<Integer, String> m = s.openMap("data", Integer.class, String.class);
int count = 2000;
// Profiler p = new Profiler();
// p.startCollecting();
// long t = System.currentTimeMillis();
for (int i = 0; i < count; i++) {
assertNull(m.put(i, "hello " + i));
assertEquals("hello " + i, m.get(i));
}
// System.out.println("put: " + (System.currentTimeMillis() - t));
// System.out.println(p.getTop(5));
// p = new Profiler();
// p.startCollecting();
// t = System.currentTimeMillis();
s.store();
// System.out.println("store: " + (System.currentTimeMillis() - t));
// System.out.println(p.getTop(5));
assertEquals("hello 0", m.remove(0));
assertNull(m.get(0));
for (int i = 1; i < count; i++) {
assertEquals("hello " + i, m.get(i));
}
s.store();
s.close();
s = openStore(fileName);
m = s.openMap("data", Integer.class, String.class);
assertNull(m.get(0));
for (int i = 1; i < count; i++) {
assertEquals("hello " + i, m.get(i));
}
for (int i = 1; i < count; i++) {
m.remove(i);
}
s.store();
assertNull(m.get(0));
for (int i = 0; i < count; i++) {
assertNull(m.get(i));
}
s.close();
}
private void testOpenStoreCloseLoop() {
String fileName = getBaseDir() + "/testOpenClose.h3";
FileUtils.delete(fileName);
for (int k = 0; k < 1; k++) {
// long t = System.currentTimeMillis();
for (int j = 0; j < 3; j++) {
MVStore s = openStore(fileName);
Map<String, Integer> m = s.openMap("data", String.class, Integer.class);
for (int i = 0; i < 3; i++) {
Integer x = m.get("value");
m.put("value", x == null ? 0 : x + 1);
s.store();
}
s.close();
}
// System.out.println("open/close: " + (System.currentTimeMillis() - t));
// System.out.println("size: " + FileUtils.size(fileName));
}
}
private void testKeyValueClasses() {
MVStore s;
s = MVStore.open(null);
s.openMap("test", String.class, String.class);
try {
s.openMap("unsupportedKey", ArrayList.class, String.class);
fail();
} catch (RuntimeException e) {
// expected
}
try {
s.openMap("unsupportedValue", String.class, ArrayList.class);
fail();
} catch (RuntimeException e) {
// expected
}
s.close();
String fileName = getBaseDir() + "/testKeyValueClasses.h3";
FileUtils.delete(fileName);
s = openStore(fileName);
MVMap<Integer, String> is = s.openMap("intString", Integer.class, String.class);
is.put(1, "Hello");
MVMap<Integer, Integer> ii = s.openMap("intInt", Integer.class, Integer.class);
ii.put(1, 10);
MVMap<String, Integer> si = s.openMap("stringInt", String.class, Integer.class);
si.put("Test", 10);
MVMap<String, String> ss = s.openMap("stringString", String.class, String.class);
ss.put("Hello", "World");
s.store();
s.close();
s = openStore(fileName);
is = s.openMap("intString", Integer.class, String.class);
assertEquals("Hello", is.get(1));
ii = s.openMap("intInt", Integer.class, Integer.class);
assertEquals(10, ii.get(1).intValue());
si = s.openMap("stringInt", String.class, Integer.class);
assertEquals(10, si.get("Test").intValue());
ss = s.openMap("stringString", String.class, String.class);
assertEquals("World", ss.get("Hello"));
s.close();
}
@Override
public FileStore openFile(String name, String mode, boolean mustExist) {
if (mustExist && !FileUtils.exists(name)) {
throw DbException.get(ErrorCode.FILE_NOT_FOUND_1, name);
}
FileStore store;
if (cipher == null) {
store = FileStore.open(this, name, mode);
} else {
store = FileStore.open(this, name, mode, cipher, fileEncryptionKey, 0);
}
store.setCheckedWriting(false);
try {
store.init();
} catch (DbException e) {
store.closeSilently();
throw e;
}
return store;
}
private void testRollbackInMemory() {
String fileName = getBaseDir() + "/testRollback.h3";
FileUtils.delete(fileName);
MVStore s = openStore(fileName);
assertEquals(0, s.getCurrentVersion());
s.setMaxPageSize(5);
MVMap<String, String> m = s.openMap("data", String.class, String.class);
s.rollbackTo(0);
assertTrue(m.isClosed());
assertEquals(0, s.getCurrentVersion());
m = s.openMap("data", String.class, String.class);
MVMap<String, String> m0 = s.openMap("data0", String.class, String.class);
MVMap<String, String> m2 = s.openMap("data2", String.class, String.class);
m.put("1", "Hello");
for (int i = 0; i < 10; i++) {
m2.put("" + i, "Test");
}
long v1 = s.incrementVersion();
assertEquals(1, v1);
assertEquals(1, s.getCurrentVersion());
MVMap<String, String> m1 = s.openMap("data1", String.class, String.class);
assertEquals("Test", m2.get("1"));
m.put("1", "Hallo");
m0.put("1", "Hallo");
m1.put("1", "Hallo");
m2.clear();
assertEquals("Hallo", m.get("1"));
assertEquals("Hallo", m1.get("1"));
s.rollbackTo(v1);
assertEquals(1, s.getCurrentVersion());
for (int i = 0; i < 10; i++) {
assertEquals("Test", m2.get("" + i));
}
assertEquals("Hello", m.get("1"));
assertNull(m0.get("1"));
assertTrue(m1.isClosed());
assertFalse(m0.isReadOnly());
assertTrue(m1.isReadOnly());
s.close();
}