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package com.sun.gjc.spi;
import javax.resource.ResourceException;
import javax.resource.spi.ConnectionRequestInfo;
import com.sun.gjc.util.SecurityUtils;
import javax.resource.spi.security.PasswordCredential;
import java.sql.DriverManager;
import com.sun.gjc.common.DataSourceSpec;
import java.util.Properties;
import java.util.StringTokenizer;
import java.util.NoSuchElementException;
import com.sun.logging.*;
import java.util.logging.Logger;
import java.util.logging.Level;
/**
* Driver Manager <code>ManagedConnectionFactory</code> implementation for Generic JDBC Connector.
*
* @author Evani Sai Surya Kiran
* @version 1.0, 02/07/31
*/
public class DMManagedConnectionFactory extends ManagedConnectionFactory {
Properties props;
private static Logger _logger;
static {
_logger = LogDomains.getLogger(LogDomains.RSR_LOGGER);
}
private boolean debug = false;
/**
* Creates a new physical connection to the underlying EIS resource
* manager.
*
* @param subject <code>Subject</code> instance passed by the application server
* @param cxRequestInfo <code>ConnectionRequestInfo</code> which may be created
* as a result of the invocation <code>getConnection(user, password)</code>
* on the <code>DataSource</code> object
* @return <code>ManagedConnection</code> object created
* @throws ResourceException if there is an error in instantiating the
* <code>DataSource</code> object used for the
* creation of the <code>ManagedConnection</code> object
* @throws SecurityException if there ino <code>PasswordCredential</code> object
* satisfying this request
*/
public javax.resource.spi.ManagedConnection createManagedConnection(javax.security.auth.Subject subject,
ConnectionRequestInfo cxRequestInfo) throws ResourceException {
if (logWriter != null) {
logWriter.println("In createManagedConnection");
}
PasswordCredential pc = SecurityUtils.getPasswordCredential(this, subject, cxRequestInfo);
try {
Thread.currentThread().getContextClassLoader().loadClass(spec.getDetail(DataSourceSpec.CLASSNAME));
} catch (ClassNotFoundException cnfe) {
_logger.log(Level.SEVERE, "jdbc.exc_cnfe",cnfe);
throw new ResourceException("The driver could not be loaded: " + spec.getDetail(DataSourceSpec.CLASSNAME) );
}
java.sql.Connection dsConn = null;
Properties driverProps = getPropertiesObj();
try {
if (cxRequestInfo != null) {
driverProps.setProperty("user", pc.getUserName());
driverProps.setProperty("password", new String(pc.getPassword()));
}
dsConn = DriverManager.getConnection(spec.getDetail(DataSourceSpec.URL), driverProps);
} catch (java.sql.SQLException sqle) {
_logger.log(Level.SEVERE, "jdbc.exc_create_mc", sqle);
throw new javax.resource.spi.ResourceAllocationException("The connection could not be allocated: " +
sqle.getMessage());
}
com.sun.gjc.spi.ManagedConnection mc = constructManagedConnection(
null, dsConn, pc, this);
//GJCINT
setIsolation(mc);
isValid(mc);
return mc;
}
/**
* This method checks if the properties object is null or not.
* If the properties object is null, it creates a new Properties
* object and inserts the default "user" and "password" key value
* pairs. It checks if any other properties have been set or not
* and includes the key value pairs for those properties.
*
* @return props <code>Properties</code> object conatining properties for getting a connection
* @throws ResourceException if the driver properties string and delimiter are not proper
*/
private Properties getPropertiesObj() throws ResourceException {
if (props != null) {
return props;
}
props = new Properties();
props.setProperty("user", getUser());
props.setProperty("password", getPassword());
String driverProps = spec.getDetail(DataSourceSpec.DRIVERPROPERTIES);
String delimiter = spec.getDetail(DataSourceSpec.DELIMITER);
if (driverProps != null && driverProps.trim().equals("") == false) {
if (delimiter == null || delimiter.equals("")) {
throw new ResourceException("Invalid driver properties string - " +
"delimiter not properly set!!");
}
StringTokenizer st = new StringTokenizer(driverProps, delimiter);
while (st.hasMoreTokens()) {
String keyValuePair = null;
try {
keyValuePair = st.nextToken();
} catch (NoSuchElementException nsee) {
throw new ResourceException("Invalid driver properties string - " +
"Key value pair not available: " + nsee.getMessage());
}
int indexOfEqualsSign = -1;
try {
indexOfEqualsSign = keyValuePair.indexOf("=");
if (indexOfEqualsSign == -1) {
throw new ResourceException("Invalid driver properties string - " +
"Key value pair should be of the form key = value");
}
} catch (NullPointerException npe) {
if (debug) {
_logger.log(Level.FINE, "jdbc.exc_caught_ign", npe.getMessage());
}
}
String key = null;
try {
key = keyValuePair.substring(0, indexOfEqualsSign).trim();
} catch (IndexOutOfBoundsException iobe) {
if (debug) {
_logger.log(Level.FINE, "jdbc.exc_caught_ign", iobe.getMessage());
}
}
if (key.equals("")) {
throw new ResourceException("Invalid driver properties string - " +
"Key cannot be an empty string");
}
String value = null;
try {
value = keyValuePair.substring(indexOfEqualsSign + 1).trim();
} catch (IndexOutOfBoundsException iobe) {
if (debug) {
_logger.log(Level.FINE, "jdbc.exc_caught_ign", iobe.getMessage());
}
}
props.setProperty(key, value);
}
}
return props;
}
/**
* Check if this <code>ManagedConnectionFactory</code> is equal to
* another <code>ManagedConnectionFactory</code>.
*
* @param other <code>ManagedConnectionFactory</code> object for checking equality with
* @return true if the property sets of both the
* <code>ManagedConnectionFactory</code> objects are the same
* false otherwise
*/
public boolean equals(Object other) {
if (logWriter != null) {
logWriter.println("In equals");
}
/**
* The check below means that two ManagedConnectionFactory objects are equal
* if and only if their properties are the same.
*/
if (other instanceof com.sun.gjc.spi.DMManagedConnectionFactory) {
com.sun.gjc.spi.DMManagedConnectionFactory otherMCF =
(com.sun.gjc.spi.DMManagedConnectionFactory) other;
return this.spec.equals(otherMCF.spec);
}
return false;
}
/**
* Sets the login timeout.
*
* @param loginTimeOut <code>String</code>
* @see <code>getLoginTimeOut</code>
*/
public void setLoginTimeOut(String loginTimeOut) {
int timeOut = 0;
try {
timeOut = Integer.valueOf(loginTimeOut);
DriverManager.setLoginTimeout(timeOut);
spec.setDetail(DataSourceSpec.LOGINTIMEOUT, loginTimeOut);
} catch (Exception e) {
if (debug) {
_logger.log(Level.FINE, "jdbc.exc_caught_ign", e.getMessage());
}
}
}
/**
* Sets the connection url.
*
* @param url <code>String</code>
* @see <code>getConnectionURL</code>
*/
public void setConnectionURL(String url) {
spec.setDetail(DataSourceSpec.URL, url);
}
/**
* Gets the connection url.
*
* @return url
* @see <code>setConnectionURL</code>
*/
public String getConnectionURL() {
return spec.getDetail(DataSourceSpec.URL);
}
public Object getDataSource() throws ResourceException {
return null;
}
}
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