/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.activemq.artemis.protocol.amqp.connect.federation;

import org.apache.activemq.artemis.api.core.Message;
import org.apache.activemq.artemis.core.server.MessageReference;
import org.apache.activemq.artemis.protocol.amqp.broker.AMQPMessage;
import org.apache.activemq.artemis.protocol.amqp.broker.AMQPSessionCallback;
import org.apache.activemq.artemis.protocol.amqp.proton.AMQPLargeMessageWriter;
import org.apache.activemq.artemis.protocol.amqp.proton.AMQPMessageWriter;
import org.apache.activemq.artemis.protocol.amqp.proton.AMQPSessionContext;
import org.apache.activemq.artemis.protocol.amqp.proton.AMQPTunneledCoreLargeMessageWriter;
import org.apache.activemq.artemis.protocol.amqp.proton.AMQPTunneledCoreMessageWriter;
import org.apache.activemq.artemis.protocol.amqp.proton.MessageWriter;
import org.apache.activemq.artemis.protocol.amqp.proton.ProtonServerSenderContext;
import org.apache.activemq.artemis.protocol.amqp.proton.SenderController;

/**
 * A base class abstract {@link SenderController} implementation for use by federation address and
 * queue senders that provides some common functionality used between both.
 */
public abstract class AMQPFederationBaseSenderController implements SenderController {

   protected final AMQPSessionContext session;
   protected final AMQPSessionCallback sessionSPI;

   protected AMQPMessageWriter standardMessageWriter;
   protected AMQPLargeMessageWriter largeMessageWriter;
   protected AMQPTunneledCoreMessageWriter coreMessageWriter;
   protected AMQPTunneledCoreLargeMessageWriter coreLargeMessageWriter;

   protected boolean tunnelCoreMessages; // only enabled if remote offers support.

   public AMQPFederationBaseSenderController(AMQPSessionContext session) {
      this.session = session;
      this.sessionSPI = session.getSessionSPI();
   }

   public AMQPSessionContext getSessionContext() {
      return session;
   }

   public AMQPSessionCallback getSessionCallback() {
      return sessionSPI;
   }

   @Override
   public void close() throws Exception {
      // Currently there isn't anything needed on close of this controller.
   }

   @Override
   public MessageWriter selectOutgoingMessageWriter(ProtonServerSenderContext sender, MessageReference reference) {
      final MessageWriter selected;
      final Message message = reference.getMessage();

      if (message instanceof AMQPMessage) {
         if (message.isLargeMessage()) {
            selected = largeMessageWriter != null ? largeMessageWriter :
               (largeMessageWriter = new AMQPLargeMessageWriter(sender));
         } else {
            selected = standardMessageWriter != null ? standardMessageWriter :
               (standardMessageWriter = new AMQPMessageWriter(sender));
         }
      } else if (tunnelCoreMessages) {
         if (message.isLargeMessage()) {
            selected = coreLargeMessageWriter != null ? coreLargeMessageWriter :
               (coreLargeMessageWriter = new AMQPTunneledCoreLargeMessageWriter(sender));
         } else {
            selected = coreMessageWriter != null ? coreMessageWriter :
               (coreMessageWriter = new AMQPTunneledCoreMessageWriter(sender));
         }
      } else {
         selected = standardMessageWriter != null ? standardMessageWriter :
            (standardMessageWriter = new AMQPMessageWriter(sender));
      }

      return selected;
   }
}
