# PassThroughSenderManager.java

    /*
     * Copyright (c) 2005-2014, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
     *
     * WSO2 Inc. licenses this file to you 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 org.apache.synapse.transport.passthru.core;

    import org.apache.commons.logging.Log;
    import org.apache.commons.logging.LogFactory;
    import org.apache.synapse.transport.passthru.PassThroughHttpSSLSender;
    import org.apache.synapse.transport.passthru.PassThroughHttpSender;

    /**
     * Class responsible for handle outBound side shared PassThroughHttpSender
     */
    public class PassThroughSenderManager {

        private static final Log logger = LogFactory.getLog(PassThroughSenderManager.class);

        private static PassThroughSenderManager passThroughSenderManager;

        private PassThroughHttpSender sharedPassThroughHttpSender;

        private PassThroughSenderManager(PassThroughHttpSender passThroughHttpSender) {
           this.sharedPassThroughHttpSender = passThroughHttpSender;
        }

        /**
         * @return Shared PassThroughHttpSender
         */
        public PassThroughHttpSender getSharedPassThroughHttpSender() {
            return sharedPassThroughHttpSender;
        }

        /**
         * @return return passThroughSenderManager
         */
        public static PassThroughSenderManager registerPassThroughHttpSender(PassThroughHttpSender passThroughHttpSender) {
            if (passThroughSenderManager == null) {
                synchronized (PassThroughSenderManager.class) {
                    if (passThroughSenderManager == null) {
                        passThroughSenderManager = new PassThroughSenderManager(passThroughHttpSender);
                    }
                }
            }
            return passThroughSenderManager;
        }

        public static PassThroughSenderManager getInstance(){
            return passThroughSenderManager;
        }
    }