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package oracle.toplink.essentials.internal.ejb.cmp3.jdbc.base;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.DriverManager;
import javax.sql.DataSource;
import oracle.toplink.essentials.internal.ejb.cmp3.transaction.base.TransactionManagerImpl;
/**
* A stubbed out impl of DataSource that can be used for testing.
*
* Does not support multiple threads or multiple usernames/passwords.
*/
public class DataSourceImpl implements DataSource {
String dsName;
String url;
String userName;
String password;
// When a transaction is active we need to get the right connection.
// This should not be set (will be null) when the data source is non-JTA (non-tx).
TransactionManagerImpl tm;
/************************/
/***** Internal API *****/
/************************/
private void debug(String s) {
System.out.println(s);
}
/*
* Use this constructor to create a new datasource
*/
public DataSourceImpl(String dsName, String url, String userName, String password) {
this.dsName = dsName;
this.url = url;
this.userName = userName;
this.password = password;
}
/*
* Return the unique name of this data source
*/
public String getName() {
return this.dsName;
}
/*
* This must be called right after initialization if data source is transactional.
* Must not get set if data source is a non-transactional data source.
*/
public void setTransactionManager(TransactionManagerImpl tm) {
this.tm = tm;
}
/*
* Get all connections from the DriverManager.
*/
public Connection internalGetConnection(String userName, String password) throws SQLException {
return DriverManager.getConnection(this.url, userName, password);
}
/*
* Get all connections from the DriverManager.
*/
public Connection internalGetConnection() throws SQLException {
return internalGetConnection(this.userName, this.password);
}
/*
* Return true if this data source is transactional, false if not
*/
public boolean isTransactional() {
return tm != null;
}
/************************************************************/
/***** Supported DataSource API *****/
/************************************************************/
/*
* Forward to the other method.
*/
public Connection getConnection() throws SQLException {
return getConnection(this.userName, this.password);
}
/*
* Go to the Transaction Manager to get a connection
*/
public Connection getConnection(String userName, String password) throws SQLException {
if (isTransactional() && tm.isTransactionActive()) {
// This will actually eventually call back into this class, but allows
// the connection to be cached in the transaction first
return tm.getConnection(this, userName, password);
} else {//{
debug("Ds - Allocating new non-tx connection");
}
return internalGetConnection(userName, password);
}
/*
* Forward to the DriverManager.
*/
public PrintWriter getLogWriter() throws SQLException {
return DriverManager.getLogWriter();
}
/*
* Forward to the DriverManager.
*/
public void setLogWriter(PrintWriter out) throws SQLException {
DriverManager.setLogWriter(out);
}
/*
* Forward to the DriverManager.
*/
public int getLoginTimeout() throws SQLException {
return DriverManager.getLoginTimeout();
}
/*
* Forward to the DriverManager.
*/
public void setLoginTimeout(int seconds) throws SQLException {
DriverManager.setLoginTimeout(seconds);
}
/*
* JDBC 4.0
*/
public <T> T unwrap(Class<T> iface) throws SQLException {
throw new SQLException();
}
/*
* JDBC 4.0
*/
public boolean isWrapperFor(Class<?> iface) throws SQLException {
return false;
}
}
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