protected void executeQuery(Statement stmt, String q) throws SQLException {
q = q.replace("$PREFIX", getPrefix());
LOG.info(" Executing " + q);
ResultSet rs = stmt.executeQuery(q);
StringBuilder header = new StringBuilder();
for (int i = 1; i <= rs.getMetaData().getColumnCount(); i++) {
if (i > 1) {
header.append("|");
}
header.append(rs.getMetaData().getColumnName(i));
}
LOG.info(header);
int seq = 0;
while (true) {
boolean valid = rs.next();
if (!valid) break;
seq++;
StringBuilder line = new StringBuilder();
for (int i = 1; i <= rs.getMetaData().getColumnCount(); i++) {
if (i > 1) {
line.append("|");
}
line.append(rs.getString(i));
}
LOG.info(seq + ":" + line);
}
}
/** Creates a Pooled connection and adds it to the connection pool. */
private void installConnection() throws EmanagerDatabaseException {
logger.debug("enter");
PooledConnection connection;
try {
connection = poolDataSource.getPooledConnection();
connection.addConnectionEventListener(this);
connection.getConnection().setAutoCommit(false);
synchronized (connectionPool) {
connectionPool.add(connection);
logger.debug("Database connection added.");
}
} catch (SQLException ex) {
logger.fatal("exception caught while obtaining database " + "connection: ex = " + ex);
SQLException ex1 = ex.getNextException();
while (ex1 != null) {
logger.fatal("chained sql exception ex1 = " + ex1);
SQLException nextEx = ex1.getNextException();
ex1 = nextEx;
}
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.DatabaseConnectionFailure.getStatusCodeDescription()
+ ex.getMessage();
logger.fatal(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.DatabaseConnectionFailure, logString);
throw ede;
}
}
/**
* Checks if a lock is left behind in the DB.
*
* @param con
* @param conID
* @return true if a lock is found.
*/
public static boolean checkLocks(Connection connection, long conID) {
try {
Statement stmt = connection.createStatement();
ResultSet res = stmt.executeQuery("exec sa_locks " + conID);
while (res.next()) {
return true;
}
} catch (SQLException ex) {
logger.error("Unable to retrieve connection ID", ex);
}
return false;
}
/**
* Gets the ConnectionID attribute of the SybaseConnector class
*
* @param connection
* @return The ConnectionID value
*/
public static long getConnectionID(Connection connection) {
try {
Statement stmt = connection.createStatement();
ResultSet res = stmt.executeQuery("select connection_property('Number')");
res.next();
return res.getLong(1);
} catch (SQLException ex) {
logger.error("SQL exception retrieving connection ID:" + ex.getMessage());
}
return InvalidConnectionId;
}
/**
* @param arg0
* @roseuid 3F4E5F400123
*/
public void connectionClosed(ConnectionEvent event) {
logger.debug("Enter: " + event.getSource());
synchronized (connectionPool) {
if (!SHUTTING_DOWN) {
if (connectionPool.size() < connectionPoolSize) {
logger.debug("Reading Connection: " + event.getSource());
connectionPool.add(event.getSource());
}
}
}
}
private void initDriverList() {
try {
Thread thread = Thread.currentThread();
ClassLoader loader = thread.getContextClassLoader();
Enumeration iter = loader.getResources("META-INF/services/java.sql.Driver");
while (iter.hasMoreElements()) {
URL url = (URL) iter.nextElement();
ReadStream is = null;
try {
is = Vfs.lookup(url.toString()).openRead();
String filename;
while ((filename = is.readLine()) != null) {
int p = filename.indexOf('#');
if (p >= 0) filename = filename.substring(0, p);
filename = filename.trim();
if (filename.length() == 0) continue;
try {
Class cl = Class.forName(filename, false, loader);
Driver driver = null;
if (Driver.class.isAssignableFrom(cl)) driver = (Driver) cl.newInstance();
if (driver != null) {
log.fine(L.l("DatabaseManager adding driver '{0}'", driver.getClass().getName()));
_driverList.add(driver);
}
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
}
}
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
} finally {
if (is != null) is.close();
}
}
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
}
}
private void initializeDatabaseContext() throws EmanagerDatabaseException {
logger.debug("Enter");
Properties properties;
SybConnectionPoolDataSource poolDataSource;
properties = new Properties();
poolDataSource = new com.sybase.jdbc2.jdbc.SybConnectionPoolDataSource();
poolDataSource.setUser(userAccount);
poolDataSource.setPassword(password);
poolDataSource.setDatabaseName(databaseName);
poolDataSource.setServerName(databaseHost);
poolDataSource.setPortNumber(connectionPort);
poolDataSource.setDescription(connectionPoolDescription);
properties.put("user", userAccount);
properties.put("password", password);
properties.put("APPLICATIONNAME", clientAppName);
// fix
// hopefully these have defaults
// properties.put("USE_METADATA", userMetaData);
// properties.put("REPEAT_READ", useRepeatRead);
// properties.put("CHARSET_CONVERTER_CLASS", charsetConverter);
properties.put("server", "jdbc:sybase:Tds:" + databaseHost + ":" + connectionPort);
try {
poolDataSource.setConnectionProperties(properties);
// jndiContext.bind("jdbc/protoDB", poolDataSource);
jndiContext.bind(JNDIContextName, poolDataSource);
} catch (Exception ex) {
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.UnableToBindJNDIContext.getStatusCodeDescription()
+ ex.getMessage();
logger.fatal(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.UnableToBindJNDIContext, logString);
throw ede;
}
}
/**
* @param arg0
* @roseuid 3F4E5F40012D
*/
public void connectionErrorOccurred(ConnectionEvent event) {
logger.debug("Connection Error " + event.getSQLException().getMessage());
synchronized (connectionPool) {
if (connectionPool.size() <= connectionPoolSize) {
connectionPool.remove(event.getSource());
if (!SHUTTING_DOWN) {
try {
installConnection();
} catch (EmanagerDatabaseException e) {
// noop. can't throw an exception here, so we'll ignore.
// It will surface later.
}
}
}
}
}
public void run() {
Connection con = null;
Statement stmt = null;
try {
DataSource ds = getDataSource();
con = ds.getConnection();
if (executeOnlyIf(con, onlyIfQuery)) {
stmt = con.createStatement();
if (query != null) {
executeQuery(stmt, query);
} else if (update != null) {
executeUpdate(stmt, update);
} else {
throw new IllegalStateException("Both query and update properties are unset");
}
} else {
LOG.debug("Skipped because of " + onlyIfQuery);
}
} catch (RuntimeException e) {
throw e;
} catch (Throwable t) {
if (ignore.matcher(t.getMessage()).matches()) {
LOG.info("Ignoring " + t.getMessage());
} else {
throw new RuntimeException(t.getMessage(), t);
}
} finally {
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception g) {
}
try {
if (con != null) {
con.close();
}
} catch (Exception g) {
}
}
}
/** @roseuid 3F3A89D40175 */
public void shutdown() {
logger.debug("Enter");
Iterator iter;
PooledConnection pooledConnection;
SHUTTING_DOWN = true;
iter = connectionPool.iterator();
while (iter.hasNext()) {
pooledConnection = (PooledConnection) iter.next();
try {
if (!pooledConnection.getConnection().isClosed()) {
pooledConnection.getConnection().close();
}
} catch (Exception ex) {
// We don't care what happens here, we're on the way out!
}
}
connectionPool.clear();
}
private String findDriverByUrlImpl(String url) {
for (int i = 0; i < _driverList.size(); i++) {
try {
Driver driver = (Driver) _driverList.get(i);
if (driver.acceptsURL(url)) return driver.getClass().getName();
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
}
}
return null;
}
/**
* The constructor obtains a ConnectionPoolDataSource reference via JNDI. This datasource is used
* when new database connections need to be established and maintained in some container (pool).
*/
public void initializeConnectionPoolConnections() throws EmanagerDatabaseException {
logger.debug("enter");
try {
poolDataSource = (ConnectionPoolDataSource) jndiContext.lookup(JNDIContextName);
} catch (Exception ex) {
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.DatabaseJNDILookupFailure.getStatusCodeDescription()
+ ex.getMessage();
logger.fatal(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.DatabaseJNDILookupFailure, logString);
throw ede;
}
for (int i = 0; i < connectionPoolSize; i++) {
installConnection();
}
}
protected boolean executeOnlyIf(Connection con, String q) throws SQLException {
if (q == null) return true;
Statement stmt = null;
try {
stmt = con.createStatement();
q = q.replace("$PREFIX", getPrefix());
LOG.debug(" Executing query " + q);
ResultSet rs = stmt.executeQuery(q);
rs.next();
boolean res = rs.getBoolean(1);
LOG.debug("Result: " + res);
return res;
} catch (SQLException sqe) {
LOG.error(sqe.getMessage() + " from " + q);
throw sqe;
} finally {
try {
if (stmt != null) {
stmt.close();
}
} catch (Exception g) {
}
}
}
/**
* @return Connection
* @roseuid 3F3A5FFD0338
*/
public Connection getConnection() throws EmanagerDatabaseException {
long connectionId;
Connection connection;
PooledConnection pooledConnection;
connection = null;
pooledConnection = null;
connectionId = InvalidConnectionId;
try {
synchronized (connectionPool) {
if (!connectionPool.isEmpty()) {
try {
boolean connectionClosed;
connectionClosed = false;
pooledConnection = (PooledConnection) connectionPool.remove(0);
connection = pooledConnection.getConnection();
connection.clearWarnings();
connectionId = getConnectionID(connection);
connectionClosed = connection.isClosed();
if (connectionId == InvalidConnectionId || connectionClosed == true) {
logger.debug("Pooled connection closed.");
connection = null;
}
} catch (SQLException sqe) {
logger.debug("Pooled connection closed.");
connection = null;
}
}
}
if (connection == null) {
logger.debug("Getting a new connection.");
pooledConnection = poolDataSource.getPooledConnection();
pooledConnection.addConnectionEventListener(this);
connection = pooledConnection.getConnection();
connection.clearWarnings();
connectionId = getConnectionID(connection);
}
} catch (SQLException sqe) {
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.UnableToGetPooledConnection.getStatusCodeDescription()
+ sqe.getMessage();
logger.error(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.UnableToGetPooledConnection, logString);
throw ede;
}
if (connectionId == InvalidConnectionId) {
EmanagerDatabaseException ede;
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.UnableToGetPooledConnection,
EmanagerDatabaseStatusCode.UnableToGetPooledConnection.getStatusCodeDescription());
throw ede;
}
logger.debug(
"\n*****************************"
+ "\nPooled Connection Init"
+ "\nCon ID:"
+ connectionId
+ "\nCon Object:"
+ pooledConnection
+ "\nPool Object:"
+ connection
+ "\n*****************************");
return connection;
}
protected void executeUpdate(Statement stmt, String u) throws SQLException {
u = u.replace("$PREFIX", getPrefix());
LOG.info(" Executing update " + u);
int result = stmt.executeUpdate(u);
LOG.service("Result :" + result);
}
/** Manages databases in a local environment, e.g. for PHP dynamic database lookup. */
public class DatabaseManager {
protected static final Logger log = Logger.getLogger(DatabaseManager.class.getName());
private static final L10N L = new L10N(DatabaseManager.class);
private static final EnvironmentLocal<DatabaseManager> _localManager =
new EnvironmentLocal<DatabaseManager>();
private final HashMap<String, DBPool> _databaseMap = new HashMap<String, DBPool>();
private final ArrayList<Driver> _driverList = new ArrayList<Driver>();
private int _gId;
/** The manager is never instantiated. */
private DatabaseManager() {
initDriverList();
}
/** Returns the database manager for the local environment. */
private static DatabaseManager getLocalManager() {
synchronized (_localManager) {
DatabaseManager manager = _localManager.getLevel();
if (manager == null) {
manager = new DatabaseManager();
_localManager.set(manager);
}
return manager;
}
}
/** Returns a matching dbpool. */
public static DataSource findDatabase(String url) throws SQLException {
String driver = findDriverByUrl(url);
return getLocalManager().findDatabaseImpl(url, driver);
}
/** Returns a matching dbpool. */
public static DataSource findDatabase(String url, String driver) throws SQLException {
return getLocalManager().findDatabaseImpl(url, driver);
}
/** Looks up the local database, creating if necessary. */
private DataSource findDatabaseImpl(String url, String driverName) throws SQLException {
try {
synchronized (_databaseMap) {
DBPool db = _databaseMap.get(url);
if (db == null) {
db = new DBPool();
db.setVar(url + "-" + _gId++);
DriverConfig driver = db.createDriver();
ClassLoader loader = Thread.currentThread().getContextClassLoader();
Class driverClass = Class.forName(driverName, false, loader);
driver.setType(driverClass);
driver.setURL(url);
db.init();
_databaseMap.put(url, db);
}
return db;
}
} catch (RuntimeException e) {
throw e;
} catch (SQLException e) {
throw e;
} catch (Exception e) {
throw ConfigException.create(e);
}
}
public static String findDriverByUrl(String url) {
return getLocalManager().findDriverByUrlImpl(url);
}
private String findDriverByUrlImpl(String url) {
for (int i = 0; i < _driverList.size(); i++) {
try {
Driver driver = (Driver) _driverList.get(i);
if (driver.acceptsURL(url)) return driver.getClass().getName();
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
}
}
return null;
}
private void initDriverList() {
try {
Thread thread = Thread.currentThread();
ClassLoader loader = thread.getContextClassLoader();
Enumeration iter = loader.getResources("META-INF/services/java.sql.Driver");
while (iter.hasMoreElements()) {
URL url = (URL) iter.nextElement();
ReadStream is = null;
try {
is = Vfs.lookup(url.toString()).openRead();
String filename;
while ((filename = is.readLine()) != null) {
int p = filename.indexOf('#');
if (p >= 0) filename = filename.substring(0, p);
filename = filename.trim();
if (filename.length() == 0) continue;
try {
Class cl = Class.forName(filename, false, loader);
Driver driver = null;
if (Driver.class.isAssignableFrom(cl)) driver = (Driver) cl.newInstance();
if (driver != null) {
log.fine(L.l("DatabaseManager adding driver '{0}'", driver.getClass().getName()));
_driverList.add(driver);
}
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
}
}
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
} finally {
if (is != null) is.close();
}
}
} catch (Exception e) {
log.log(Level.FINE, e.toString(), e);
}
}
static class DatabaseKey {
private String _url;
private String _catalog;
DatabaseKey(String url, String catalog) {
_url = url;
_catalog = catalog;
}
public int hashCode() {
int hash = 37;
hash = 65521 * hash + _url.hashCode();
if (_catalog != null) hash = 65521 * hash + _catalog.hashCode();
return hash;
}
public boolean equals(Object o) {
if (!(o instanceof DatabaseKey)) return false;
DatabaseKey key = (DatabaseKey) o;
if (!_url.equals(key._url)) return false;
return (_catalog == key._catalog || _catalog != null && _catalog.equals(key._catalog));
}
}
}
private void initializeDatabaseConnectionConfigurationParameters() {
String propertyValue;
Properties systemProperties;
systemProperties = GlobalProperties.instance().getProperties();
userAccount = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionUserAccountKey);
if (userAccount == null) {
userAccount = DatabaseGlobals.DatabaseConnectionUserAccountDefault;
}
logger.info(DatabaseGlobals.UserAccountValueMsg + userAccount);
password = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionPasswordKey);
if (password == null) {
password = DatabaseGlobals.DatabaseConnectionPasswordDefault;
}
logger.info(DatabaseGlobals.PasswordValueMsg + password);
databaseName = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionDatabaseNameKey);
if (databaseName == null) {
databaseName = DatabaseGlobals.DatabaseConnectionDatabaseNameDefault;
}
logger.info(DatabaseGlobals.DatabaseNameValueMsg + databaseName);
databaseHost = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionDatabaseHostKey);
if (databaseHost == null) {
databaseHost = DatabaseGlobals.DatabaseConnectionDatabaseHostDefault;
}
logger.info(DatabaseGlobals.DatabaseHostValueMsg + databaseHost);
clientAppName =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionClientAppNameKey);
if (clientAppName == null) {
clientAppName = DatabaseGlobals.DatabaseConnectionClientAppNameDefault;
}
logger.info(DatabaseGlobals.ClientAppNameValueMsg + clientAppName);
userMetaData = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionUserMetaDataKey);
if (userMetaData == null) {
userMetaData = DatabaseGlobals.DatabaseConnectionUserMetaDataDefault;
}
logger.info(DatabaseGlobals.UserMetaDataValueMsg + userMetaData);
useRepeatRead =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionUseRepeatReadKey);
if (useRepeatRead == null) {
useRepeatRead = DatabaseGlobals.DatabaseConnectionUseRepeatReadDefault;
}
logger.info(DatabaseGlobals.UseRepeatReadValueMsg + useRepeatRead);
charsetConverter =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionCharsetConverterKey);
if (charsetConverter == null) {
charsetConverter = DatabaseGlobals.DatabaseConnectionCharsetConverterDefault;
}
logger.info(DatabaseGlobals.CharsetConverterValueMsg + charsetConverter);
connectionPoolDescription =
systemProperties.getProperty(
DatabaseGlobals.DatabaseConnectionConnectionPoolDescriptionKey);
if (connectionPoolDescription == null) {
connectionPoolDescription =
DatabaseGlobals.DatabaseConnectionConnectionPoolDescriptionDefault;
}
logger.info(DatabaseGlobals.ConnectionPoolDescriptionValueMsg + connectionPoolDescription);
propertyValue =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionConnectionPortKey);
if (propertyValue == null) {
connectionPort = DatabaseGlobals.DatabaseConnectionConnectionPortDefault;
logger.info("Using default connectionPort value: " + connectionPort);
} else {
try {
connectionPort = Integer.parseInt(propertyValue);
logger.info("Using connectionPort value: " + connectionPort);
} catch (NumberFormatException e) {
connectionPort = DatabaseGlobals.DatabaseConnectionConnectionPortDefault;
logger.info(
"Error converting property value. Using default connectionPort value: "
+ connectionPort);
}
}
propertyValue =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionConnectionPoolSizeKey);
if (propertyValue == null) {
connectionPoolSize = DatabaseGlobals.DatabaseConnectionConnectionPoolSizeDefault;
logger.info("Using default connectionPoolSize value: " + connectionPoolSize);
} else {
try {
connectionPoolSize = Integer.parseInt(propertyValue);
logger.info("Using connectionPoolSize value: " + connectionPoolSize);
} catch (NumberFormatException e) {
connectionPoolSize = DatabaseGlobals.DatabaseConnectionConnectionPoolSizeDefault;
logger.info(
"Error converting property value. Using default connectionPoolSize value: "
+ connectionPoolSize);
}
}
}
public class DatabaseConnectionManager implements ConnectionEventListener {
private static Logger logger = Logger.getLogger(DatabaseConnectionManager.class);
/** Connection pool datasource. */
ConnectionPoolDataSource poolDataSource = null;
/** Container of the pooled connections. */
List connectionPool = Collections.synchronizedList(new LinkedList());
/** a JNDI context. */
Context jndiContext = null;
private boolean SHUTTING_DOWN = false;
// Driver config
// final static String DRIVER_NAME = "com.sybase.jdbc2.jdbc.SybDriver";
// private SybDriver sybaseDriver = null;
/*
* We are using a single instance to allow for pools now.
*/
private static DatabaseConnectionManager connectionManager = null;
private static final String JNDIContextName = "jdbc/emanagerDB";
public static final long InvalidConnectionId = -1;
// Database Connection properties
private String userAccount;
private String password;
private String databaseName;
private String databaseHost;
private String clientAppName;
private String userMetaData;
private String useRepeatRead;
private String charsetConverter;
private String connectionPoolDescription;
private int connectionPort;
private static int connectionPoolSize;
/** Constructor for the DatabaseConnectionManager object */
private DatabaseConnectionManager() throws EmanagerDatabaseException {
jndiContext = JNDIRegistryManager.instance().getJNDIContext();
initializeDatabaseConnectionConfigurationParameters();
initializeDatabaseContext();
initializeConnectionPoolConnections();
}
private void initializeDatabaseConnectionConfigurationParameters() {
String propertyValue;
Properties systemProperties;
systemProperties = GlobalProperties.instance().getProperties();
userAccount = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionUserAccountKey);
if (userAccount == null) {
userAccount = DatabaseGlobals.DatabaseConnectionUserAccountDefault;
}
logger.info(DatabaseGlobals.UserAccountValueMsg + userAccount);
password = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionPasswordKey);
if (password == null) {
password = DatabaseGlobals.DatabaseConnectionPasswordDefault;
}
logger.info(DatabaseGlobals.PasswordValueMsg + password);
databaseName = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionDatabaseNameKey);
if (databaseName == null) {
databaseName = DatabaseGlobals.DatabaseConnectionDatabaseNameDefault;
}
logger.info(DatabaseGlobals.DatabaseNameValueMsg + databaseName);
databaseHost = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionDatabaseHostKey);
if (databaseHost == null) {
databaseHost = DatabaseGlobals.DatabaseConnectionDatabaseHostDefault;
}
logger.info(DatabaseGlobals.DatabaseHostValueMsg + databaseHost);
clientAppName =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionClientAppNameKey);
if (clientAppName == null) {
clientAppName = DatabaseGlobals.DatabaseConnectionClientAppNameDefault;
}
logger.info(DatabaseGlobals.ClientAppNameValueMsg + clientAppName);
userMetaData = systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionUserMetaDataKey);
if (userMetaData == null) {
userMetaData = DatabaseGlobals.DatabaseConnectionUserMetaDataDefault;
}
logger.info(DatabaseGlobals.UserMetaDataValueMsg + userMetaData);
useRepeatRead =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionUseRepeatReadKey);
if (useRepeatRead == null) {
useRepeatRead = DatabaseGlobals.DatabaseConnectionUseRepeatReadDefault;
}
logger.info(DatabaseGlobals.UseRepeatReadValueMsg + useRepeatRead);
charsetConverter =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionCharsetConverterKey);
if (charsetConverter == null) {
charsetConverter = DatabaseGlobals.DatabaseConnectionCharsetConverterDefault;
}
logger.info(DatabaseGlobals.CharsetConverterValueMsg + charsetConverter);
connectionPoolDescription =
systemProperties.getProperty(
DatabaseGlobals.DatabaseConnectionConnectionPoolDescriptionKey);
if (connectionPoolDescription == null) {
connectionPoolDescription =
DatabaseGlobals.DatabaseConnectionConnectionPoolDescriptionDefault;
}
logger.info(DatabaseGlobals.ConnectionPoolDescriptionValueMsg + connectionPoolDescription);
propertyValue =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionConnectionPortKey);
if (propertyValue == null) {
connectionPort = DatabaseGlobals.DatabaseConnectionConnectionPortDefault;
logger.info("Using default connectionPort value: " + connectionPort);
} else {
try {
connectionPort = Integer.parseInt(propertyValue);
logger.info("Using connectionPort value: " + connectionPort);
} catch (NumberFormatException e) {
connectionPort = DatabaseGlobals.DatabaseConnectionConnectionPortDefault;
logger.info(
"Error converting property value. Using default connectionPort value: "
+ connectionPort);
}
}
propertyValue =
systemProperties.getProperty(DatabaseGlobals.DatabaseConnectionConnectionPoolSizeKey);
if (propertyValue == null) {
connectionPoolSize = DatabaseGlobals.DatabaseConnectionConnectionPoolSizeDefault;
logger.info("Using default connectionPoolSize value: " + connectionPoolSize);
} else {
try {
connectionPoolSize = Integer.parseInt(propertyValue);
logger.info("Using connectionPoolSize value: " + connectionPoolSize);
} catch (NumberFormatException e) {
connectionPoolSize = DatabaseGlobals.DatabaseConnectionConnectionPoolSizeDefault;
logger.info(
"Error converting property value. Using default connectionPoolSize value: "
+ connectionPoolSize);
}
}
}
private void initializeDatabaseContext() throws EmanagerDatabaseException {
logger.debug("Enter");
Properties properties;
SybConnectionPoolDataSource poolDataSource;
properties = new Properties();
poolDataSource = new com.sybase.jdbc2.jdbc.SybConnectionPoolDataSource();
poolDataSource.setUser(userAccount);
poolDataSource.setPassword(password);
poolDataSource.setDatabaseName(databaseName);
poolDataSource.setServerName(databaseHost);
poolDataSource.setPortNumber(connectionPort);
poolDataSource.setDescription(connectionPoolDescription);
properties.put("user", userAccount);
properties.put("password", password);
properties.put("APPLICATIONNAME", clientAppName);
// fix
// hopefully these have defaults
// properties.put("USE_METADATA", userMetaData);
// properties.put("REPEAT_READ", useRepeatRead);
// properties.put("CHARSET_CONVERTER_CLASS", charsetConverter);
properties.put("server", "jdbc:sybase:Tds:" + databaseHost + ":" + connectionPort);
try {
poolDataSource.setConnectionProperties(properties);
// jndiContext.bind("jdbc/protoDB", poolDataSource);
jndiContext.bind(JNDIContextName, poolDataSource);
} catch (Exception ex) {
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.UnableToBindJNDIContext.getStatusCodeDescription()
+ ex.getMessage();
logger.fatal(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.UnableToBindJNDIContext, logString);
throw ede;
}
}
/**
* The constructor obtains a ConnectionPoolDataSource reference via JNDI. This datasource is used
* when new database connections need to be established and maintained in some container (pool).
*/
public void initializeConnectionPoolConnections() throws EmanagerDatabaseException {
logger.debug("enter");
try {
poolDataSource = (ConnectionPoolDataSource) jndiContext.lookup(JNDIContextName);
} catch (Exception ex) {
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.DatabaseJNDILookupFailure.getStatusCodeDescription()
+ ex.getMessage();
logger.fatal(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.DatabaseJNDILookupFailure, logString);
throw ede;
}
for (int i = 0; i < connectionPoolSize; i++) {
installConnection();
}
}
/** Creates a Pooled connection and adds it to the connection pool. */
private void installConnection() throws EmanagerDatabaseException {
logger.debug("enter");
PooledConnection connection;
try {
connection = poolDataSource.getPooledConnection();
connection.addConnectionEventListener(this);
connection.getConnection().setAutoCommit(false);
synchronized (connectionPool) {
connectionPool.add(connection);
logger.debug("Database connection added.");
}
} catch (SQLException ex) {
logger.fatal("exception caught while obtaining database " + "connection: ex = " + ex);
SQLException ex1 = ex.getNextException();
while (ex1 != null) {
logger.fatal("chained sql exception ex1 = " + ex1);
SQLException nextEx = ex1.getNextException();
ex1 = nextEx;
}
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.DatabaseConnectionFailure.getStatusCodeDescription()
+ ex.getMessage();
logger.fatal(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.DatabaseConnectionFailure, logString);
throw ede;
}
}
/**
* @return Connection
* @roseuid 3F3A5FFD0338
*/
public Connection getConnection() throws EmanagerDatabaseException {
long connectionId;
Connection connection;
PooledConnection pooledConnection;
connection = null;
pooledConnection = null;
connectionId = InvalidConnectionId;
try {
synchronized (connectionPool) {
if (!connectionPool.isEmpty()) {
try {
boolean connectionClosed;
connectionClosed = false;
pooledConnection = (PooledConnection) connectionPool.remove(0);
connection = pooledConnection.getConnection();
connection.clearWarnings();
connectionId = getConnectionID(connection);
connectionClosed = connection.isClosed();
if (connectionId == InvalidConnectionId || connectionClosed == true) {
logger.debug("Pooled connection closed.");
connection = null;
}
} catch (SQLException sqe) {
logger.debug("Pooled connection closed.");
connection = null;
}
}
}
if (connection == null) {
logger.debug("Getting a new connection.");
pooledConnection = poolDataSource.getPooledConnection();
pooledConnection.addConnectionEventListener(this);
connection = pooledConnection.getConnection();
connection.clearWarnings();
connectionId = getConnectionID(connection);
}
} catch (SQLException sqe) {
String logString;
EmanagerDatabaseException ede;
logString =
EmanagerDatabaseStatusCode.UnableToGetPooledConnection.getStatusCodeDescription()
+ sqe.getMessage();
logger.error(logString);
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.UnableToGetPooledConnection, logString);
throw ede;
}
if (connectionId == InvalidConnectionId) {
EmanagerDatabaseException ede;
ede =
new EmanagerDatabaseException(
EmanagerDatabaseStatusCode.UnableToGetPooledConnection,
EmanagerDatabaseStatusCode.UnableToGetPooledConnection.getStatusCodeDescription());
throw ede;
}
logger.debug(
"\n*****************************"
+ "\nPooled Connection Init"
+ "\nCon ID:"
+ connectionId
+ "\nCon Object:"
+ pooledConnection
+ "\nPool Object:"
+ connection
+ "\n*****************************");
return connection;
}
/**
* @return com.cisco.eManager.eManager.database.DatabaseConnectionManager
* @roseuid 3F3A63E40370
*/
public static DatabaseConnectionManager instance() throws EmanagerDatabaseException {
if (connectionManager == null) {
connectionManager = new DatabaseConnectionManager();
}
return connectionManager;
}
/** @roseuid 3F3A88C50359 */
private void addConnectionToPool() {}
/**
* @param maximumConnections
* @roseuid 3F3A891C02B3
*/
public static void setMaximumPooledConnections(int maximumConnections) {
connectionPoolSize = maximumConnections;
}
/**
* @return int
* @roseuid 3F3A8939033A
*/
public static int getMaximumPooledConnections() {
return connectionPoolSize;
}
/** @roseuid 3F3A89D40175 */
public void shutdown() {
logger.debug("Enter");
Iterator iter;
PooledConnection pooledConnection;
SHUTTING_DOWN = true;
iter = connectionPool.iterator();
while (iter.hasNext()) {
pooledConnection = (PooledConnection) iter.next();
try {
if (!pooledConnection.getConnection().isClosed()) {
pooledConnection.getConnection().close();
}
} catch (Exception ex) {
// We don't care what happens here, we're on the way out!
}
}
connectionPool.clear();
}
/**
* @param arg0
* @roseuid 3F4E5F400123
*/
public void connectionClosed(ConnectionEvent event) {
logger.debug("Enter: " + event.getSource());
synchronized (connectionPool) {
if (!SHUTTING_DOWN) {
if (connectionPool.size() < connectionPoolSize) {
logger.debug("Reading Connection: " + event.getSource());
connectionPool.add(event.getSource());
}
}
}
}
/**
* Gets the ConnectionID attribute of the SybaseConnector class
*
* @param connection
* @return The ConnectionID value
*/
public static long getConnectionID(Connection connection) {
try {
Statement stmt = connection.createStatement();
ResultSet res = stmt.executeQuery("select connection_property('Number')");
res.next();
return res.getLong(1);
} catch (SQLException ex) {
logger.error("SQL exception retrieving connection ID:" + ex.getMessage());
}
return InvalidConnectionId;
}
/**
* Checks if a lock is left behind in the DB.
*
* @param con
* @param conID
* @return true if a lock is found.
*/
public static boolean checkLocks(Connection connection, long conID) {
try {
Statement stmt = connection.createStatement();
ResultSet res = stmt.executeQuery("exec sa_locks " + conID);
while (res.next()) {
return true;
}
} catch (SQLException ex) {
logger.error("Unable to retrieve connection ID", ex);
}
return false;
}
/**
* @param arg0
* @roseuid 3F4E5F40012D
*/
public void connectionErrorOccurred(ConnectionEvent event) {
logger.debug("Connection Error " + event.getSQLException().getMessage());
synchronized (connectionPool) {
if (connectionPool.size() <= connectionPoolSize) {
connectionPool.remove(event.getSource());
if (!SHUTTING_DOWN) {
try {
installConnection();
} catch (EmanagerDatabaseException e) {
// noop. can't throw an exception here, so we'll ignore.
// It will surface later.
}
}
}
}
}
/**
* Resets the con pool.
*
* @exception NamingException Description of Exception
*/
public void reset() throws NamingException, EmanagerDatabaseException {
shutdown();
jndiContext.unbind(JNDIContextName);
instance();
}
public String getDatabaseConnectionDatabaseHost() {
return databaseHost;
}
}
