com.cyclopsgroup.tornado.hibernate.impl.SessionWrapper.java Source code

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Here is the source code for com.cyclopsgroup.tornado.hibernate.impl.SessionWrapper.java

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/* ==========================================================================
 * Copyright 2002-2005 Cyclops Group Community
 * 
 * Licensed under the Open Software License, Version 2.1 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://opensource.org/licenses/osl-2.1.php
 *
 *  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 com.cyclopsgroup.tornado.hibernate.impl;

import java.sql.Connection;
import java.util.HashMap;

import org.apache.commons.lang.ArrayUtils;
import org.hibernate.Session;
import org.hibernate.Transaction;

/**
 * @author <a href="mailto:jiaqi@evavi.com">Jiaqi Guo</a>
 *
 * Wrapper for sessions
 */
class SessionWrapper {
    private HashMap connections = new HashMap();

    private HashMap sessions = new HashMap();

    private HashMap transactions = new HashMap();

    /**
     * Enable transaction
     *
     * @param dataSourceName Data source name
     */
    public void enableTransaction(String dataSourceName) {
        if (transactions.containsKey(dataSourceName)) {
            return;
        }
        if (!sessions.containsKey(dataSourceName)) {
            return;
        }
        Session session = getSession(dataSourceName);
        Transaction transaction = session.beginTransaction();
        transactions.put(dataSourceName, transaction);
    }

    /**
     * Get connection
     *
     * @param dataSourceName Data source name
     * @return Connection object
     */
    Connection getConnection(String dataSourceName) {
        return (Connection) connections.get(dataSourceName);
    }

    String[] getDataSourceNames() {
        return (String[]) sessions.keySet().toArray(ArrayUtils.EMPTY_STRING_ARRAY);
    }

    Session getSession(String dataSourceName) {
        return (Session) sessions.get(dataSourceName);
    }

    Transaction getTransaction(String dataSourceName) {
        return (Transaction) transactions.get(dataSourceName);
    }

    void remove(String dataSourceName) {
        sessions.remove(dataSourceName);
        connections.remove(dataSourceName);
        transactions.remove(dataSourceName);
    }

    void setConnection(String dataSourceName, Connection dbcon) {
        connections.put(dataSourceName, dbcon);
    }

    void setSession(String dataSourceName, Session session) {
        sessions.put(dataSourceName, session);
    }
}