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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jackrabbit.oak.plugins.document.rdb;
import java.io.Closeable;
import java.io.IOException;
import java.io.PrintWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.logging.Logger;
import javax.sql.DataSource;
import org.apache.jackrabbit.oak.plugins.document.DocumentStoreException;
import org.slf4j.LoggerFactory;
/**
* Factory for creating {@link DataSource}s based on a JDBC connection URL.
*/
public class RDBDataSourceFactory {
private static final org.slf4j.Logger LOG = LoggerFactory.getLogger(RDBDataSourceFactory.class);
public static DataSource forJdbcUrl(String url, String username, String passwd, String driverName) {
// load driver class when specified
if (driverName != null && !driverName.isEmpty()) {
LOG.info("trying to load {}", driverName);
try {
Class.forName(driverName);
} catch (ClassNotFoundException ex) {
LOG.error("driver " + driverName + " not loaded", ex);
}
} else {
// try to determine driver from JDBC URL
String defaultDriver = RDBJDBCTools.driverForDBType(RDBJDBCTools.jdbctype(url));
if (defaultDriver != null && !defaultDriver.isEmpty()) {
LOG.info("trying to load {}", defaultDriver);
try {
Class.forName(defaultDriver);
} catch (ClassNotFoundException ex) {
LOG.error("driver " + defaultDriver + " not loaded", ex);
}
}
}
try {
LOG.debug("Getting driver for " + url);
Driver d = DriverManager.getDriver(url);
String classname = "org.apache.tomcat.jdbc.pool.DataSource";
try {
Class dsclazz = Class.forName(classname);
DataSource ds = (DataSource) dsclazz.newInstance();
dsclazz.getMethod("setDriverClassName", String.class).invoke(ds, d.getClass().getName());
dsclazz.getMethod("setUsername", String.class).invoke(ds, username);
dsclazz.getMethod("setPassword", String.class).invoke(ds, passwd);
dsclazz.getMethod("setUrl", String.class).invoke(ds, url);
String interceptors = System.getProperty(
"org.apache.jackrabbit.oak.plugins.document.rdb.RDBDataSourceFactory.jdbcInterceptors",
"SlowQueryReport(threshold=10000);ConnectionState;StatementCache");
if (!interceptors.isEmpty()) {
dsclazz.getMethod("setJdbcInterceptors", String.class).invoke(ds, interceptors);
}
return new CloseableDataSource(ds);
} catch (Exception ex) {
String message = "trying to create datasource " + classname;
LOG.info(message, ex);
throw new DocumentStoreException(message, ex);
}
} catch (SQLException ex) {
String message = "trying to obtain driver for " + url;
LOG.info(message, ex);
throw new DocumentStoreException(message, ex);
}
}
public static DataSource forJdbcUrl(String url, String username, String passwd) {
return forJdbcUrl(url, username, passwd, null);
}
/**
* A {@link Closeable} {@link DataSource} based on a generic {@link Source}
* .
*/
private static class CloseableDataSource implements DataSource, Closeable {
private DataSource ds;
public CloseableDataSource(DataSource ds) {
this.ds = ds;
}
@Override
public PrintWriter getLogWriter() throws SQLException {
return this.ds.getLogWriter();
}
@Override
public int getLoginTimeout() throws SQLException {
return this.ds.getLoginTimeout();
}
@Override
public void setLogWriter(PrintWriter pw) throws SQLException {
this.ds.setLogWriter(pw);
}
@Override
public void setLoginTimeout(int t) throws SQLException {
this.ds.setLoginTimeout(t);
}
@Override
public boolean isWrapperFor(Class c) throws SQLException {
return this.ds.isWrapperFor(c);
}
@Override
public T unwrap(Class c) throws SQLException {
return this.ds.unwrap(c);
}
@Override
public void close() throws IOException {
Class dsclazz = ds.getClass();
try {
Method clmethod = dsclazz.getMethod("close");
clmethod.invoke(ds);
} catch (NoSuchMethodException e) {
LOG.debug("Class " + dsclazz + " does not have close() method");
} catch (IllegalArgumentException e) {
LOG.debug("Class " + dsclazz + " does not have close() method");
} catch (InvocationTargetException e) {
throw new IOException("trying to close datasource", e);
} catch (IllegalAccessException e) {
throw new IOException("trying to close datasource", e);
}
}
@Override
public Connection getConnection() throws SQLException {
return this.ds.getConnection();
}
@Override
public Connection getConnection(String user, String passwd) throws SQLException {
return this.ds.getConnection(user, passwd);
}
// needed in Java 7...
@SuppressWarnings("unused")
public Logger getParentLogger() throws SQLFeatureNotSupportedException {
throw new SQLFeatureNotSupportedException();
}
@Override
public String toString() {
return this.getClass().getName() + " wrapping a " + this.ds.toString();
}
}
}
