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Embedded-Web Distribution of the Payara Project for IBM JDK
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2012 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
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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
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
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* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
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*/
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.base.AbstractDataSource;
import javax.resource.ResourceException;
import javax.resource.spi.ConnectionManager;
import java.util.logging.Level;
import java.sql.*;
import java.util.logging.Logger;
/**
* Holds the java.sql.Connection object, which is to be
* passed to the application program.
*
* @author Binod P.G
* @version 1.0, 02/07/31
*/
public class DataSource40 extends AbstractDataSource {
protected final static StringManager localStrings =
StringManager.getManager(ManagedConnectionFactoryImpl.class);
/**
* Constructs DataSource object. This is created by the
* ManagedConnectionFactory object.
*
* @param mcf ManagedConnectionFactory object
* creating this object.
* @param cm ConnectionManager object either associated
* with Application server or Resource Adapter.
*/
public DataSource40(ManagedConnectionFactoryImpl mcf, ConnectionManager cm) {
super(mcf, cm);
}
/**
* 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
*/
public T unwrap(Class iface) throws SQLException {
T result;
try {
Object cds = mcf.getDataSource();
if (iface.isInstance(cds)) {
result = iface.cast(cds);
} else if (cds instanceof java.sql.Wrapper) {
result = ((java.sql.Wrapper) cds).unwrap(iface);
} else {
String msg = localStrings.getString("jdbc.feature_not_supported");
throw new SQLException(msg);
}
} catch (ResourceException e) {
_logger.log(Level.WARNING, "jdbc.exc_unwrap", e);
throw new SQLException(e);
}
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
*/
public boolean isWrapperFor(Class iface) throws SQLException {
boolean result = false;
try {
Object cds = mcf.getDataSource();
if (iface.isInstance(cds)) {
result = true;
} else if (cds instanceof java.sql.Wrapper) {
result = ((java.sql.Wrapper) cds).isWrapperFor(iface);
}
} catch (ResourceException e) {
_logger.log(Level.WARNING, "jdbc.exc_is_wrapper", e);
throw new SQLException(e);
}
return result;
}
public Logger getParentLogger() throws SQLFeatureNotSupportedException {
if(DataSourceObjectBuilder.isJDBC41()) {
try {
return (Logger) executor.invokeMethod(mcf.getDataSource().getClass(),
"getParentLogger", null);
} catch (ResourceException ex) {
_logger.log(Level.SEVERE, "jdbc.ex_get_parent_logger", ex);
throw new SQLFeatureNotSupportedException(ex);
}
}
throw new UnsupportedOperationException("Operation not supported in this runtime.");
}
}