private void initRead() throws IOException {
if (input == null) {
try {
InputStream in = FileUtils.newInputStream(fileName);
in = new BufferedInputStream(in, Constants.IO_BUFFER_SIZE);
input = new InputStreamReader(in, characterSet);
} catch (IOException e) {
close();
throw e;
}
}
if (!input.markSupported()) {
input = new BufferedReader(input);
}
input.mark(1);
int bom = input.read();
if (bom != 0xfeff) {
// Microsoft Excel compatibility
// ignore pseudo-BOM
input.reset();
}
inputBuffer = new char[Constants.IO_BUFFER_SIZE * 2];
if (columnNames == null) {
readHeader();
}
}
private void initWrite() throws IOException {
if (output == null) {
try {
OutputStream out = FileUtils.newOutputStream(fileName, false);
out = new BufferedOutputStream(out, Constants.IO_BUFFER_SIZE);
output = new BufferedWriter(new OutputStreamWriter(out, characterSet));
} catch (Exception e) {
close();
throw DbException.convertToIOException(e);
}
}
}
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 connectServer(ConnectionInfo ci) {
String name = ci.getName();
if (name.startsWith("//")) {
name = name.substring("//".length());
}
int idx = name.indexOf('/');
if (idx < 0) {
throw ci.getFormatException();
}
databaseName = name.substring(idx + 1);
String server = name.substring(0, idx);
traceSystem = new TraceSystem(null);
String traceLevelFile = ci.getProperty(SetTypes.TRACE_LEVEL_FILE, null);
if (traceLevelFile != null) {
int level = Integer.parseInt(traceLevelFile);
String prefix = getFilePrefix(SysProperties.CLIENT_TRACE_DIRECTORY);
try {
traceSystem.setLevelFile(level);
if (level > 0) {
String file = FileUtils.createTempFile(prefix, Constants.SUFFIX_TRACE_FILE, false, false);
traceSystem.setFileName(file);
}
} catch (IOException e) {
throw DbException.convertIOException(e, prefix);
}
}
String traceLevelSystemOut = ci.getProperty(SetTypes.TRACE_LEVEL_SYSTEM_OUT, null);
if (traceLevelSystemOut != null) {
int level = Integer.parseInt(traceLevelSystemOut);
traceSystem.setLevelSystemOut(level);
}
trace = traceSystem.getTrace(Trace.JDBC);
String serverList = null;
if (server.indexOf(',') >= 0) {
serverList = StringUtils.quoteStringSQL(server);
ci.setProperty("CLUSTER", Constants.CLUSTERING_ENABLED);
}
autoReconnect = Boolean.valueOf(ci.getProperty("AUTO_RECONNECT", "false")).booleanValue();
// AUTO_SERVER implies AUTO_RECONNECT
boolean autoServer = Boolean.valueOf(ci.getProperty("AUTO_SERVER", "false")).booleanValue();
if (autoServer && serverList != null) {
throw DbException.getUnsupportedException("autoServer && serverList != null");
}
autoReconnect |= autoServer;
if (autoReconnect) {
String className = ci.getProperty("DATABASE_EVENT_LISTENER");
if (className != null) {
className = StringUtils.trim(className, true, true, "'");
try {
eventListener = (DatabaseEventListener) Utils.loadUserClass(className).newInstance();
} catch (Throwable e) {
throw DbException.convert(e);
}
}
}
cipher = ci.getProperty("CIPHER");
if (cipher != null) {
fileEncryptionKey = MathUtils.secureRandomBytes(32);
}
String[] servers;
if (ci.isDynamic()) {
servers = new String[] {ci.getOnlineServer(server)};
} else {
servers = StringUtils.arraySplit(server, ',', true);
if (servers.length > 1 && !ci.removeProperty("USE_H2_CLUSTER_MODE", false))
servers = new String[] {servers[random.nextInt(servers.length)]};
}
int len = servers.length;
transferList.clear();
sessionId = StringUtils.convertBytesToHex(MathUtils.secureRandomBytes(32));
// TODO cluster: support more than 2 connections
boolean switchOffCluster = false;
try {
for (int i = 0; i < len; i++) {
String s = servers[i];
try {
Transfer trans = initTransfer(ci, databaseName, s);
transferList.add(trans);
} catch (IOException e) {
if (len == 1) {
throw DbException.get(ErrorCode.CONNECTION_BROKEN_1, e, e + ": " + s);
}
switchOffCluster = true;
}
}
checkClosed();
if (switchOffCluster) {
switchOffCluster();
}
checkClusterDisableAutoCommit(serverList);
} catch (DbException e) {
traceSystem.close();
throw e;
}
}