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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2012 Oracle and/or its affiliates. All rights reserved.
*
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
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* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
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* file that accompanied this code.
*
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* Portions Copyright 2016-2022 Payara Foundation and/or affiliates
*/
package com.sun.gjc.spi.jdbc40;
import com.sun.enterprise.util.i18n.StringManager;
import com.sun.gjc.common.DataSourceObjectBuilder;
import com.sun.gjc.spi.ManagedConnectionFactoryImpl;
import com.sun.gjc.spi.ManagedConnectionImpl;
import com.sun.gjc.spi.base.ConnectionHolder;
import com.sun.logging.LogDomains;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.sql.*;
import java.util.Properties;
import java.util.concurrent.Executor;
import java.util.logging.Level;
import java.util.logging.Logger;
import jakarta.resource.ResourceException;
/**
* Holds the java.sql.Connection object, which is to be
* passed to the application program.
*
* @author Jagadish Ramu
* @version 1.0, 25-Aug-2006
*/
public class ConnectionHolder40 extends ConnectionHolder {
private static final String NUM_SERVERS = "numServers";
private static final String SERVER0 = "server0";
// this class uses LogStrings.properties of the jdbc-core library.
private static final Logger _logger = LogDomains.getLogger(ConnectionHolder40.class, LogDomains.RSR_LOGGER,
ConnectionHolder.class.getClassLoader());
protected final static StringManager localStrings =
StringManager.getManager(ManagedConnectionFactoryImpl.class);
protected Properties defaultClientInfo;
/**
* Connection wrapper given to application program
*
* @param con Connection that is wrapped
* @param mc ManagedConnection
* @param cxRequestInfo Connection Request Information
*/
public ConnectionHolder40(Connection con, ManagedConnectionImpl mc,
jakarta.resource.spi.ConnectionRequestInfo cxRequestInfo) {
super(con, mc, cxRequestInfo);
init();
}
/**
* cache the default client info which can will set back during close()
* as this connection may be re-used by connection pool of application server
*/
protected void init() {
try {
if (isSupportClientInfo()) {
defaultClientInfo = getClientInfo();
}
} catch (Exception e) {
if(_logger.isLoggable(Level.FINEST)) {
_logger.log(Level.FINEST, "jdbc.unable_to_get_client_info", e);
}
}
}
/**
* Constructs an object that implements the Clob interface. The object
* returned initially contains no data. The setAsciiStream,
* setCharacterStream and setString methods of
* the Clob interface may be used to add data to the Clob.
*
* @return An object that implements the Clob interface
* @throws java.sql.SQLException if an object that implements the
* Clob interface can not be constructed, this method is
* called on a closed connection or a database access error occurs.
* @throws java.sql.SQLFeatureNotSupportedException
* if the JDBC driver does not support
* this data type
* @since 1.6
*/
@Override
public Clob createClob() throws SQLException {
checkValidity();
jdbcPreInvoke();
return con.createClob();
}
/**
* Constructs an object that implements the Blob interface. The object
* returned initially contains no data. The setBinaryStream and
* setBytes methods of the Blob interface may be used to add data to
* the Blob.
*
* @return An object that implements the Blob interface
* @throws java.sql.SQLException if an object that implements the
* Blob interface can not be constructed, this method is
* called on a closed connection or a database access error occurs.
* @throws java.sql.SQLFeatureNotSupportedException
* if the JDBC driver does not support
* this data type
* @since 1.6
*/
@Override
public Blob createBlob() throws SQLException {
checkValidity();
jdbcPreInvoke();
return con.createBlob();
}
/**
* Constructs an object that implements the NClob interface. The object
* returned initially contains no data. The setAsciiStream,
* setCharacterStream and setString methods of the NClob interface may
* be used to add data to the NClob.
*
* @return An object that implements the NClob interface
* @throws java.sql.SQLException if an object that implements the
* NClob interface can not be constructed, this method is
* called on a closed connection or a database access error occurs.
* @throws java.sql.SQLFeatureNotSupportedException
* if the JDBC driver does not support
* this data type
* @since 1.6
*/
@Override
public NClob createNClob() throws SQLException {
checkValidity();
jdbcPreInvoke();
return con.createNClob();
}
/**
* Constructs an object that implements the SQLXML interface. The object
* returned initially contains no data. The createXmlStreamWriter object and
* setString method of the SQLXML interface may be used to add data to the SQLXML
* object.
*
* @return An object that implements the SQLXML interface
* @throws java.sql.SQLException if an object that implements the SQLXML interface can not
* be constructed, this method is
* called on a closed connection or a database access error occurs.
* @throws java.sql.SQLFeatureNotSupportedException
* if the JDBC driver does not support
* this data type
* @since 1.6
*/
@Override
public SQLXML createSQLXML() throws SQLException {
checkValidity();
jdbcPreInvoke();
return con.createSQLXML();
}
/**
* Returns true if the connection has not been closed and is still valid.
* The driver shall submit a query on the connection or use some other
* mechanism that positively verifies the connection is still valid when
* this method is called.
*
* The query submitted by the driver to validate the connection shall be
* executed in the context of the current transaction.
*
* @param timeout The time in seconds to wait for the database operation
* used to validate the connection to complete. If
* the timeout period expires before the operation
* completes, this method returns false. A value of
* 0 indicates a timeout is not applied to the
* database operation.
* @return true if the connection is valid, false otherwise
* @throws java.sql.SQLException if the value supplied for timeout
* is less then 0
* @see java.sql.DatabaseMetaData#getClientInfoProperties
* @since 1.6
*/
@Override
public boolean isValid(int timeout) throws SQLException {
checkValidity();
return con.isValid(timeout);
}
/**
* Sets the value of the client info property specified by name to the
* value specified by value.
*
* Applications may use the DatabaseMetaData.getClientInfoProperties
* method to determine the client info properties supported by the driver
* and the maximum length that may be specified for each property.
*
* The driver stores the value specified in a suitable location in the
* database. For example in a special register, session parameter, or
* system table column. For efficiency the driver may defer setting the
* value in the database until the next time a statement is executed or
* prepared. Other than storing the client information in the appropriate
* place in the database, these methods shall not alter the behavior of
* the connection in anyway. The values supplied to these methods are
* used for accounting, diagnostics and debugging purposes only.
*
* The driver shall generate a warning if the client info name specified
* is not recognized by the driver.
*
* If the value specified to this method is greater than the maximum
* length for the property the driver may either truncate the value and
* generate a warning or generate a SQLClientInfoException. If the driver
* generates a SQLClientInfoException, the value specified was not set on the
* connection.
*
* The following are standard client info properties. Drivers are not
* required to support these properties however if the driver supports a
* client info property that can be described by one of the standard
* properties, the standard property name should be used.
*
*
* - ApplicationName - The name of the application currently utilizing
* the connection
* - ClientUser - The name of the user that the application using
* the connection is performing work for. This may
* not be the same as the user name that was used
* in establishing the connection.
* - ClientHostname - The hostname of the computer the application
* using the connection is running on.
*
*
* @param name The name of the client info property to set
* @param value The value to set the client info property to. If the
* value is null, the current value of the specified
* property is cleared.
* @throws java.sql.SQLClientInfoException
* if the database server returns an error while
* setting the client info value on the database server or this method
* is called on a closed connection
* @since 1.6
*/
@Override
public void setClientInfo(String name, String value) throws SQLClientInfoException {
try {
checkValidity();
} catch (SQLException sqe) {
SQLClientInfoException sce = new SQLClientInfoException();
sce.setStackTrace(sqe.getStackTrace());
throw sce;
}
con.setClientInfo(name, value);
}
/**
* Sets the value of the connection's client info properties. The
* Properties object contains the names and values of the client info
* properties to be set. The set of client info properties contained in
* the properties list replaces the current set of client info properties
* on the connection. If a property that is currently set on the
* connection is not present in the properties list, that property is
* cleared. Specifying an empty properties list will clear all of the
* properties on the connection. See setClientInfo (String, String) for
* more information.
*
* If an error occurs in setting any of the client info properties, a
* SQLClientInfoException is thrown. The SQLClientInfoException
* contains information indicating which client info properties were not set.
* The state of the client information is unknown because
* some databases do not allow multiple client info properties to be set
* atomically. For those databases, one or more properties may have been
* set before the error occurred.
*
*
* @param properties the list of client info properties to set
* @throws java.sql.SQLClientInfoException
* if the database server returns an error while
* setting the clientInfo values on the database server or this method
* is called on a closed connection
* @see java.sql.Connection#setClientInfo(String,String) setClientInfo(String, String)
* @since 1.6
*/
@Override
public void setClientInfo(Properties properties) throws SQLClientInfoException {
try {
checkValidity();
} catch (SQLException sqe) {
SQLClientInfoException sce = new SQLClientInfoException();
sce.setStackTrace(sqe.getStackTrace());
throw sce;
}
// PAYARA-1127
// Starting With h2 version 1.4.192, numServers property is treated as internal property
// and it should not be set through client info.
if (properties.containsKey(NUM_SERVERS) || properties.containsKey(SERVER0)) {
Properties filteredProperties = new Properties();
filteredProperties.putAll(properties);
filteredProperties.remove(NUM_SERVERS);
filteredProperties.remove(SERVER0);
con.setClientInfo(filteredProperties);
} else {
con.setClientInfo(properties);
}
}
/**
* Returns the value of the client info property specified by name. This
* method may return null if the specified client info property has not
* been set and does not have a default value. This method will also
* return null if the specified client info property name is not supported
* by the driver.
*
* Applications may use the DatabaseMetaData.getClientInfoProperties
* method to determine the client info properties supported by the driver.
*
*
* @param name The name of the client info property to retrieve
* @return The value of the client info property specified
* @throws java.sql.SQLException if the database server returns an error when
* fetching the client info value from the database
* or this method is called on a closed connection
* @see java.sql.DatabaseMetaData#getClientInfoProperties
* @since 1.6
*/
@Override
public String getClientInfo(String name) throws SQLException {
checkValidity();
return con.getClientInfo(name);
}
/**
* Returns a list containing the name and current value of each client info
* property supported by the driver. The value of a client info property
* may be null if the property has not been set and does not have a
* default value.
* @return A Properties object that contains the name and current value of
* each of the client info properties supported by the driver.
* @throws java.sql.SQLException if the database server returns an error when
* fetching the client info values from the database
* or this method is called on a closed connection
* @since 1.6
*/
@Override
public Properties getClientInfo() throws SQLException {
checkValidity();
return con.getClientInfo();
}
/**
* Returns true if the client info properties are supported.
* The application server calls the getClientInfo method and the setClientInfo method
* only if the driver supports the client info properties.
* The DatabaseMetaData#getClientInfoProperties method is used to determine
* whether the driver supports the client info properties or not.
* Note that the DatabaseMetaData will be cached by ManagedConnection.
*
*
* @return true if the client info properties are supported, false otherwise
*
* @see java.sql.DatabaseMetaData#getClientInfoProperties
* @since 1.6
*/
private boolean isSupportClientInfo() {
Boolean isSupportClientInfo = getManagedConnection().isClientInfoSupported();
if (isSupportClientInfo != null) {
return isSupportClientInfo;
}
ResultSet rs = null;
try {
rs = getManagedConnection().getCachedDatabaseMetaData().getClientInfoProperties();
isSupportClientInfo = rs.next();
} catch (final Exception e) {
isSupportClientInfo = false;
if(_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "jdbc.unable_to_get_client_info", e);
}
} finally {
try {
if (rs != null) {
rs.close();
}
} catch(SQLException e) {
_logger.log(Level.SEVERE, "Cannot close resultset!", e);
}
}
getManagedConnection().setClientInfoSupported(isSupportClientInfo);
return isSupportClientInfo;
}
/**
* Factory method for creating Array objects.
*
* @param typeName the SQL name of the type the elements of the array map to. The typeName is a
* database-specific name which may be the name of a built-in type, a user-defined type or a standard SQL type supported by this database. This
* is the value returned by Array.getBaseTypeName
* @param elements the elements that populate the returned object
* @return an Array object whose elements map to the specified SQL type
* @throws java.sql.SQLException if a database error occurs, the typeName is null or this method is called on a closed connection
* @throws java.sql.SQLFeatureNotSupportedException
* if the JDBC driver does not support this data type
* @since 1.6
*/
@Override
public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
checkValidity();
jdbcPreInvoke();
return con.createArrayOf(typeName, elements);
}
/**
* Factory method for creating Struct objects.
*
* @param typeName the SQL type name of the SQL structured type that this Struct
* object maps to. The typeName is the name of a user-defined type that
* has been defined for this database. It is the value returned by
* Struct.getSQLTypeName.
* @param attributes the attributes that populate the returned object
* @return a Struct object that maps to the given SQL type and is populated with the given attributes
* @throws java.sql.SQLException if a database error occurs, the typeName is null or this method is called on a closed connection
* @throws java.sql.SQLFeatureNotSupportedException
* if the JDBC driver does not support this data type
* @since 1.6
*/
@Override
public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
checkValidity();
jdbcPreInvoke();
return con.createStruct(typeName, attributes);
}
/**
* 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 java.sql.SQLException If no object found that implements the interface
* @since 1.6
*/
@Override
public T unwrap(Class iface) throws SQLException {
checkValidity();
T result = null;
if (iface.isInstance(this)) { //if iface is "java.sql.Connection"
result = iface.cast(this);
} else if (iface.isInstance(con)) {
//if iface is not "java.sql.Connection" & implemented by native Connection
Class listIntf[] = new Class[]{iface};
result = getProxyObject(con, listIntf);
} else {
//probably a proxy, delegating to native connection
result = con.unwrap(iface);
if (Connection.class.isInstance(result)) {
// rare case : returned object implements both iface & java.sql.Connection
Class listIntf[] = new Class[]{iface, Connection.class};
result = getProxyObject(result, listIntf);
}
}
return result;
}
/**
* @param actualObject Object from jdbc vendor connection's unwrap
* @param ifaces Interfaces for which proxy is needed
* @return Proxy class implmenting the interfaces
* @throws SQLException
*/
private T getProxyObject(final Object actualObject, Class[] ifaces) throws SQLException {
T result;
InvocationHandler ih;
try {
ih = new InvocationHandler() {
public Object invoke(Object proxy, Method method, Object[] args) throws SQLException,
IllegalAccessException, InvocationTargetException {
// When close() is called on proxy object, call close() on resource adapter's
// Connection Holder instead of physical connection.
if (method.getName().equals("close")
&& method.getParameterTypes().length == 0) {
if (_logger.isLoggable(Level.FINE)) {
String msg = localStrings.getString("jdbc.close_called_on_proxy_object", actualObject);
_logger.log(Level.FINE, msg);
}
ConnectionHolder40.this.close();
return null;
}
// default
return method.invoke(actualObject, args);
}
};
} catch (Exception e) {
throw new SQLException(e.fillInStackTrace());
}
result = (T) Proxy.newProxyInstance(actualObject.getClass().getClassLoader(), ifaces, ih);
return result;
}
/**
* 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 iface a Class defining an interface.
* @return true if this implements the interface or directly or indirectly wraps an object that does.
* @throws java.sql.SQLException if an error occurs while determining whether this is a wrapper
* for an object with the given interface.
* @since 1.6
*/
@Override
public boolean isWrapperFor(Class iface) throws SQLException {
checkValidity();
boolean result;
if (iface.isInstance(this)) {
result = true;
} else {
result = con.isWrapperFor(iface);
}
return result;
}
/**
* Closes the logical connection.
* Cleans up client specific details
*
* @throws SQLException In case of a database error.
*/
@Override
public void close() throws SQLException {
if (isClosed) {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "jdbc.duplicate_close_connection", this);
}
return;
}
try {
checkValidity();
if (isSupportClientInfo()) {
if (defaultClientInfo == null) {
setClientInfo(new Properties());
} else {
setClientInfo(defaultClientInfo);
}
}
} catch (Exception e) {
_logger.log(Level.SEVERE, "jdbc.unable_to_set_client_info", e);
}
super.close();
}
@Override
public void setSchema(String schema) throws SQLException {
if(DataSourceObjectBuilder.isJDBC41()) {
checkValidity();
Class[] valueTypes = new Class[]{String.class};
try {
getMethodExecutor().invokeMethod(con, "setSchema", valueTypes, schema);
} catch (ResourceException ex) {
_logger.log(Level.SEVERE, "jdbc.ex_connection_holder", ex);
throw new SQLException(ex);
}
return;
}
throw new UnsupportedOperationException("Operation not supported in this runtime.");
}
@Override
public String getSchema() throws SQLException {
if(DataSourceObjectBuilder.isJDBC41()) {
checkValidity();
try {
return (String) getMethodExecutor().invokeMethod(con, "getSchema", null);
} catch (ResourceException ex) {
_logger.log(Level.SEVERE, "jdbc.ex_connection_holder", ex);
throw new SQLException(ex);
}
}
throw new UnsupportedOperationException("Operation not supported in this runtime.");
}
@Override
public void setNetworkTimeout(Executor executorObj, int milliseconds)
throws SQLException {
if (DataSourceObjectBuilder.isJDBC41()) {
checkValidity();
Class[] valueTypes = new Class[]{Executor.class, Integer.TYPE};
try {
getMethodExecutor().invokeMethod(con, "setNetworkTimeout", valueTypes, executorObj, milliseconds);
} catch (ResourceException ex) {
_logger.log(Level.SEVERE, "jdbc.ex_connection_holder", ex);
throw new SQLException(ex);
}
return;
}
throw new UnsupportedOperationException("Operation not supported in this runtime.");
}
@Override
public int getNetworkTimeout() throws SQLException {
if (DataSourceObjectBuilder.isJDBC41()) {
checkValidity();
try {
return (Integer) getMethodExecutor().invokeMethod(con, "getNetworkTimeout", null);
} catch (ResourceException ex) {
_logger.log(Level.SEVERE, "jdbc.ex_connection_holder", ex);
throw new SQLException(ex);
}
}
throw new UnsupportedOperationException("Operation not supported in this runtime.");
}
/**
* Abort operation to mark the connection internally as a bad connection
* for removal and to close the connection. This ensures that at the end
* of the transaction, the connection is destroyed. A running thread
* holding a connection will run to completion before the connection is
* destroyed
*
* @param executor
* @throws SQLException
*/
@Override
public void abort(Executor executor) throws SQLException {
if (DataSourceObjectBuilder.isJDBC41()) {
getManagedConnection().markForRemoval(true);
getManagedConnection().setAborted(true);
if(!getManagedConnection().isTransactionInProgress()) {
close();
}
} else {
throw new UnsupportedOperationException("Operation not supported in this runtime.");
}
}
}