/*
 * Copyright (c) 2012, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package com.sun.messaging.jmq.jmsclient.runtime.impl;

import jakarta.jms.JMSException;
import com.sun.messaging.jmq.jmsclient.runtime.BrokerInstance;
import com.sun.messaging.jmq.jmsclient.runtime.ClientRuntime;
import com.sun.messaging.jmq.jmsservice.DirectBrokerConnection;

public class ClientRuntimeImpl extends ClientRuntime {

    protected ClientRuntimeImpl() {
        super();
    }

    public static ClientRuntime getClientRuntimeImpl() {
        return MyInstance.runtimeImpl;
    }

    @Override
    public boolean isEmbeddedBrokerRunning() {

        if (BrokerInstanceImpl.getInstance() != null) {
            return BrokerInstanceImpl.getInstance().isBrokerRunning();
        } else {
            return false;
        }
    }

    public DirectBrokerConnection createDirectConnection() throws JMSException {

        if (BrokerInstanceImpl.getInstance() == null) {
            throw new JMSException("Cannot create direct connection. No embedded broker running in this JVM.");
        }

        DirectBrokerConnection dbc = BrokerInstanceImpl.getInstance().createDirectConnection();

        // ConnectionImpl.getConnectionLogger().info("ClientRuntime created direct connection ...");

        return dbc;
    }

    @Override
    public synchronized BrokerInstance createBrokerInstance() throws IllegalAccessException {
        return BrokerInstanceImpl.createInstance();
    }

    /**
     * Client runtime singleton instance is constructed here.
     */
    private static class MyInstance {
        private final static ClientRuntime runtimeImpl = new ClientRuntimeImpl();
    }
}
