com.microsoft.sqlserver.jdbc.SQLServerDataSourceObjectFactory Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of mssql-jdbc Show documentation
Microsoft JDBC Driver for SQL Server. The Azure Key Vault feature in Microsoft JDBC Driver for SQL Server depends on Azure SDK for JAVA and Azure Active Directory Library For Java.
There is a newer version: 12.7.0.jre11-preview
Show newest version
/*
 * Microsoft JDBC Driver for SQL Server
 * 
 * Copyright(c) Microsoft Corporation All rights reserved.
 * 
 * This program is made available under the terms of the MIT License. See the LICENSE file in the project root for more information.
 */

package com.microsoft.sqlserver.jdbc;

import java.lang.reflect.InvocationTargetException;
import java.util.Hashtable;

import javax.naming.Context;
import javax.naming.Name;
import javax.naming.spi.ObjectFactory;

/**
 * SQLServerDataSourceObjectFactory is an object factory to materialize datasources from JNDI.
 */

public final class SQLServerDataSourceObjectFactory implements ObjectFactory {

    // NOTE: Per ObjectFactory spec, the ObjectFactory class requires a public
    // class with public constructor.

    /**
     * Initializes a new instance of the SQLServerDataSourceObjectFactory class.
     */
    public SQLServerDataSourceObjectFactory() {
    }

    // getObjectInstance is a factory for rehydrating references to SQLServerDataSource and its child classes.
    // Caller gets the reference by calling SQLServerDataSource.getReference.
    // References are used by JNDI to persist and rehydrate objects.
    public Object getObjectInstance(Object ref,
            Name name,
            Context c,
            Hashtable h) throws SQLServerException {
        // Create a new instance of a DataSource class from the given reference.
        try {
            javax.naming.Reference r = (javax.naming.Reference) ref;
            // First get "class" property from reference.
            javax.naming.RefAddr ra = r.get("class");

            // Our reference will always have a "class" RefAddr.
            if (null == ra) {
                SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);
            }

            String className = (String) ra.getContent();

            if (null == className)
                SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);

            // Check that we have the expected class name inside our reference.
            if (("com.microsoft.sqlserver.jdbc.SQLServerDataSource").equals(className)
                    || ("com.microsoft.sqlserver.jdbc.SQLServerConnectionPoolDataSource").equals(className)
                    || ("com.microsoft.sqlserver.jdbc.SQLServerXADataSource").equals(className)) {

                // Create class instance and initialize using reference.
                Class dataSourceClass = Class.forName(className);
                Object dataSourceClassInstance = dataSourceClass.getDeclaredConstructor().newInstance();

                // If this class we created does not cast to SQLServerDataSource, then caller
                // passed in the wrong reference to our factory.
                SQLServerDataSource ds = (SQLServerDataSource) dataSourceClassInstance;
                ds.initializeFromReference(r);
                return dataSourceClassInstance;
            }
            // Class not found, throw invalid reference exception.
            SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);
        }
        catch (ClassNotFoundException e) {
            SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);
        }
        catch (InstantiationException e) {
            SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);
        }
        catch (IllegalAccessException e) {
            SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);
        }
        catch (IllegalArgumentException e) {
            SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);
        }
        catch (InvocationTargetException e) {
            SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);
        }
        catch (NoSuchMethodException e) {
            SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);
        }
        catch (SecurityException e) {
            SQLServerException.makeFromDriverError(null, null, SQLServerException.getErrString("R_invalidDataSourceReference"), null, true);
        }
        // no chance of getting here but to keep the compiler happy
        return null;

    }

}