io.narayana.TransactionalConnectionProvider.java Source code

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Here is the source code for io.narayana.TransactionalConnectionProvider.java

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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2013, Red Hat, Inc. and/or its affiliates, and individual
 * contributors by the @authors tag. See the copyright.txt in the
 * distribution for a full listing of individual contributors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.narayana;

import com.arjuna.ats.jdbc.TransactionalDriver;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.service.UnknownUnwrapTypeException;

import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;

/**
 * @author <a href="mailto:gytis@redhat.com">Gytis Trikleris</a>
 */
public class TransactionalConnectionProvider implements ConnectionProvider {

    private final DataSource dataSource;

    public TransactionalConnectionProvider() throws NamingException {
        dataSource = InitialContext.doLookup("java:comp/env/transactionalDataSource");
    }

    @Override
    public Connection getConnection() throws SQLException {
        return dataSource.getConnection();
    }

    @Override
    public void closeConnection(Connection connection) throws SQLException {
        connection.close();
    }

    @Override
    public boolean supportsAggressiveRelease() {
        return false;
    }

    @Override
    public boolean isUnwrappableAs(Class aClass) {
        return getClass().isAssignableFrom(aClass);
    }

    @Override
    public <T> T unwrap(Class<T> aClass) {
        if (isUnwrappableAs(aClass)) {
            return (T) this;
        }

        throw new UnknownUnwrapTypeException(aClass);
    }

}