org.mariadb.jdbc.MariaDbDataSource Maven / Gradle / Ivy
Show all versions of mariadb-java-client Show documentation
/*
*
* MariaDB Client for Java
*
* Copyright (c) 2012-2014 Monty Program Ab.
* Copyright (c) 2015-2019 MariaDB Ab.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License along
* with this library; if not, write to Monty Program Ab [email protected].
*
* This particular MariaDB Client for Java file is work
* derived from a Drizzle-JDBC. Drizzle-JDBC file which is covered by subject to
* the following copyright and notice provisions:
*
* Copyright (c) 2009-2011, Marcus Eriksson
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* Neither the name of the driver nor the names of its contributors may not be
* used to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
*/
package org.mariadb.jdbc;
import org.mariadb.jdbc.internal.util.constant.*;
import org.mariadb.jdbc.internal.util.exceptions.*;
import org.mariadb.jdbc.internal.util.pool.*;
import org.mariadb.jdbc.util.*;
import javax.sql.*;
import java.io.*;
import java.sql.*;
import java.util.*;
import java.util.logging.*;
public class MariaDbDataSource implements DataSource, ConnectionPoolDataSource, XADataSource {
private UrlParser urlParser;
private Pool pool;
private String hostname;
private Integer port = 3306;
private Integer connectTimeoutInMs;
private String database;
private String url;
private String user;
private String password;
private String properties;
/**
* Constructor.
*
* @param hostname hostname (ipv4, ipv6, dns name)
* @param port server port
* @param database database name
*/
public MariaDbDataSource(String hostname, int port, String database) {
this.hostname = hostname;
this.port = port;
this.database = database;
}
public MariaDbDataSource(String url) {
this.url = url;
}
/** Default constructor. hostname will be localhost, port 3306. */
public MariaDbDataSource() {}
/**
* Gets the name of the database.
*
* @return the name of the database for this data source
*/
public String getDatabaseName() {
if (database != null) {
return database;
}
return (urlParser != null && urlParser.getDatabase() != null) ? urlParser.getDatabase() : "";
}
/**
* Sets the database name.
*
* @param database the name of the database
* @throws SQLException if connection information are erroneous
*/
public void setDatabaseName(String database) throws SQLException {
this.database = database;
reInitializeIfNeeded();
}
/**
* Gets the username.
*
* @return the username to use when connecting to the database
*/
public String getUser() {
if (user != null) {
return user;
}
return urlParser != null ? urlParser.getUsername() : null;
}
/**
* Sets the username.
*
* @param user the username
* @throws SQLException if connection information are erroneous
*/
public void setUser(String user) throws SQLException {
this.user = user;
reInitializeIfNeeded();
}
/**
* Gets the username.
*
* @return the username to use when connecting to the database
*/
public String getUserName() {
return getUser();
}
/**
* Sets the username.
*
* @param userName the username
* @throws SQLException if connection information are erroneous
*/
public void setUserName(String userName) throws SQLException {
setUser(userName);
}
/**
* Sets the password.
*
* @param password the password
* @throws SQLException if connection information are erroneous
*/
public void setPassword(String password) throws SQLException {
this.password = password;
reInitializeIfNeeded();
}
/**
* Returns the port number.
*
* @return the port number
*/
public int getPort() {
if (port != 0) {
return port;
}
return urlParser != null ? urlParser.getHostAddresses().get(0).port : 3306;
}
/**
* Sets the database port.
*
* @param port the port
* @throws SQLException if connection information are erroneous
*/
public void setPort(int port) throws SQLException {
this.port = port;
reInitializeIfNeeded();
}
/**
* Returns the port number.
*
* @return the port number
*/
public int getPortNumber() {
return getPort();
}
/**
* Sets the port number.
*
* @param port the port
* @throws SQLException if connection information are erroneous
* @see #setPort
*/
public void setPortNumber(int port) throws SQLException {
if (port > 0) {
setPort(port);
}
}
@Deprecated
public void setProperties(String properties) throws SQLException {
this.properties = properties;
reInitializeIfNeeded();
}
/**
* Sets the connection string URL.
*
* @param url the connection string
* @throws SQLException if error in URL
*/
public void setUrl(String url) throws SQLException {
this.url = url;
reInitializeIfNeeded();
}
/**
* Returns the name of the database server.
*
* @return the name of the database server
*/
public String getServerName() {
if (hostname != null) {
return hostname;
}
boolean hasHost = urlParser != null && this.urlParser.getHostAddresses().get(0).host != null;
return (hasHost) ? this.urlParser.getHostAddresses().get(0).host : "localhost";
}
/**
* Sets the server name.
*
* @param serverName the server name
* @throws SQLException if connection information are erroneous
*/
public void setServerName(String serverName) throws SQLException {
hostname = serverName;
reInitializeIfNeeded();
}
/**
* Attempts to establish a connection with the data source that this DataSource
* object represents.
*
* @return a connection to the data source
* @throws SQLException if a database access error occurs
*/
public Connection getConnection() throws SQLException {
try {
if (urlParser == null) {
initialize();
}
return MariaDbConnection.newConnection(urlParser, null);
} catch (SQLException e) {
throw ExceptionMapper.getException(e, null, null, false);
}
}
/**
* Attempts to establish a connection with the data source that this DataSource
* object represents.
*
* @param username the database user on whose behalf the connection is being made
* @param password the user's password
* @return a connection to the data source
* @throws SQLException if a database access error occurs
*/
public Connection getConnection(final String username, final String password)
throws SQLException {
try {
if (urlParser == null) {
this.user = username;
this.password = password;
initialize();
}
UrlParser urlParser = (UrlParser) this.urlParser.clone();
urlParser.setUsername(username);
urlParser.setPassword(password);
return MariaDbConnection.newConnection(urlParser, null);
} catch (SQLException e) {
throw ExceptionMapper.getException(e, null, null, false);
} catch (CloneNotSupportedException cloneException) {
throw new SQLException("Error in configuration");
}
}
/**
* Retrieves the log writer for this DataSource object.
*
* The log writer is a character output stream to which all logging and tracing messages for
* this data source will be printed. This includes messages printed by the methods of this object,
* messages printed by methods of other objects manufactured by this object, and so on. Messages
* printed to a data source specific log writer are not printed to the log writer associated with
* the java.sql.DriverManager class. When a DataSource object is
* created, the log writer is initially null; in other words, the default is for logging to be
* disabled.
*
* @return the log writer for this data source or null if logging is disabled
* @see #setLogWriter
*/
public PrintWriter getLogWriter() {
return null;
}
/**
* Sets the log writer for this DataSource object to the given
* java.io.PrintWriter object.
*
*
The log writer is a character output stream to which all logging and tracing messages for
* this data source will be printed. This includes messages printed by the methods of this object,
* messages printed by methods of other objects manufactured by this object, and so on. Messages
* printed to a data source- specific log writer are not printed to the log writer associated with
* the java.sql.DriverManager class. When a DataSource object is created
* the log writer is initially null; in other words, the default is for logging to be disabled.
*
* @param out the new log writer; to disable logging, set to null
* @see #getLogWriter
*/
public void setLogWriter(final PrintWriter out) {
// not implemented
}
/**
* Gets the maximum time in seconds that this data source can wait while attempting to connect to
* a database. A value of zero means that the timeout is the default system timeout if there is
* one; otherwise, it means that there is no timeout. When a DataSource object is
* created, the login timeout is initially zero.
*
* @return the data source login time limit
* @see #setLoginTimeout
*/
public int getLoginTimeout() {
if (connectTimeoutInMs != null) {
return connectTimeoutInMs / 1000;
}
return (urlParser != null) ? urlParser.getOptions().connectTimeout / 1000 : 30;
}
/**
* Sets the maximum time in seconds that this data source will wait while attempting to connect to
* a database. A value of zero specifies that the timeout is the default system timeout if there
* is one; otherwise, it specifies that there is no timeout. When a DataSource object
* is created, the login timeout is initially zero.
*
* @param seconds the data source login time limit
* @see #getLoginTimeout
*/
@Override
public void setLoginTimeout(final int seconds) {
connectTimeoutInMs = seconds * 1000;
}
/**
* Returns an object that implements the given interface to allow access to non-standard methods,
* or standard methods not exposed by the proxy.
*
*
If the receiver implements the interface then the result is the receiver or a proxy for the
* receiver. If the receiver is a wrapper and the wrapped object implements the interface then the
* result is the wrapped object or a proxy for the wrapped object. Otherwise return the the result
* of calling unwrap recursively on the wrapped object or a proxy for that result. If
* the receiver is not a wrapper and does not implement the interface, then an SQLException
* is thrown.
*
* @param iface A Class defining an interface that the result must implement.
* @return an object that implements the interface. May be a proxy for the actual implementing
* object.
* @throws SQLException If no object found that implements the interface
* @since 1.6
*/
public T unwrap(final Class iface) throws SQLException {
try {
if (isWrapperFor(iface)) {
return iface.cast(this);
} else {
throw new SQLException(
"The receiver is not a wrapper and does not implement the interface");
}
} catch (Exception e) {
throw new SQLException("The receiver is not a wrapper and does not implement the interface");
}
}
/**
* Returns true if this either implements the interface argument or is directly or indirectly a
* wrapper for an object that does. Returns false otherwise. If this implements the interface then
* return true, else if this is a wrapper then return the result of recursively calling
* isWrapperFor on the wrapped object. If this does not implement the interface and is not
* a wrapper, return false. This method should be implemented as a low-cost operation compared to
* unwrap so that callers can use this method to avoid expensive unwrap
* calls that may fail. If this method returns true then calling unwrap with the same
* argument should succeed.
*
* @param interfaceOrWrapper a Class defining an interface.
* @return true if this implements the interface or directly or indirectly wraps an object that
* does.
* @throws SQLException if an error occurs while determining whether this is a wrapper for an
* object with the given interface.
*/
public boolean isWrapperFor(final Class interfaceOrWrapper) throws SQLException {
return interfaceOrWrapper.isInstance(this);
}
/**
* Attempts to establish a physical database connection that can be used as a pooled connection.
*
* @return a PooledConnection object that is a physical connection to the database
* that this ConnectionPoolDataSource object represents
* @throws SQLException if a database access error occurs
*/
public PooledConnection getPooledConnection() throws SQLException {
return new MariaDbPooledConnection((MariaDbConnection) getConnection());
}
/**
* Attempts to establish a physical database connection that can be used as a pooled connection.
*
* @param user the database user on whose behalf the connection is being made
* @param password the user's password
* @return a PooledConnection object that is a physical connection to the database
* that this ConnectionPoolDataSource object represents
* @throws SQLException if a database access error occurs
*/
public PooledConnection getPooledConnection(String user, String password) throws SQLException {
return new MariaDbPooledConnection((MariaDbConnection) getConnection(user, password));
}
@Override
public XAConnection getXAConnection() throws SQLException {
return new MariaXaConnection((MariaDbConnection) getConnection());
}
@Override
public XAConnection getXAConnection(String user, String password) throws SQLException {
return new MariaXaConnection((MariaDbConnection) getConnection(user, password));
}
public Logger getParentLogger() {
return null;
}
/**
* For testing purpose only.
*
* @return current url parser.
*/
protected UrlParser getUrlParser() {
return urlParser;
}
private void reInitializeIfNeeded() throws SQLException {
if (urlParser != null) {
initialize();
}
}
protected synchronized void initialize() throws SQLException {
if (url != null && !url.isEmpty()) {
Properties props = new Properties();
if (user != null) {
props.setProperty("user", user);
}
if (password != null) {
props.setProperty("password", password);
}
if (database != null) {
props.setProperty("database", database);
}
if (connectTimeoutInMs != null) {
props.setProperty("connectTimeout", String.valueOf(connectTimeoutInMs));
}
urlParser = UrlParser.parse(url, props);
} else {
Options options = DefaultOptions.defaultValues(HaMode.NONE);
options.user = user;
options.password = password;
urlParser =
new UrlParser(
database,
Collections.singletonList(
new HostAddress(
(hostname == null || hostname.isEmpty()) ? "localhost" : hostname,
port == null ? 3306 : port)),
options,
HaMode.NONE);
if (properties != null) {
urlParser.setProperties(properties);
}
if (connectTimeoutInMs != null) {
urlParser.getOptions().connectTimeout = connectTimeoutInMs;
}
}
}
}