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The RabbitMQ Java client library allows Java applications to interface with RabbitMQ.

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// Copyright (c) 2023 Broadcom. All Rights Reserved.
// The term "Broadcom" refers to Broadcom Inc. and/or its subsidiaries.
//
// This software, the RabbitMQ Java client library, is triple-licensed under the
// Mozilla Public License 2.0 ("MPL"), the GNU General Public License version 2
// ("GPL") and the Apache License version 2 ("ASL"). For the MPL, please see
// LICENSE-MPL-RabbitMQ. For the GPL, please see LICENSE-GPL2.  For the ASL,
// please see LICENSE-APACHE2.
//
// This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND,
// either express or implied. See the LICENSE file for specific language governing
// rights and limitations of this software.
//
// If you have any questions regarding licensing, please contact us at
// [email protected].
package com.rabbitmq.client.observation.micrometer;

import io.micrometer.observation.transport.ReceiverContext;
import java.util.Map;

/**
 * {@link io.micrometer.observation.Observation.Context} for use with RabbitMQ client {@link
 * io.micrometer.observation.Observation} instrumentation.
 *
 * @since 5.19.0
 */
public class DeliverContext extends ReceiverContext> {

  private final String exchange;
  private final String routingKey;
  private final int payloadSizeBytes;
  private final String queue;

  DeliverContext(
      String exchange,
      String routingKey,
      String queue,
      Map headers,
      int payloadSizeBytes) {
    super(
        (hdrs, key) -> {
          Object result = hdrs.get(key);
          if (result == null) {
            return null;
          }
          return String.valueOf(result);
        });
    this.exchange = exchange;
    this.routingKey = routingKey;
    this.payloadSizeBytes = payloadSizeBytes;
    this.queue = queue;
    setCarrier(headers);
  }

  public String getExchange() {
    return this.exchange;
  }

  public String getRoutingKey() {
    return this.routingKey;
  }

  public int getPayloadSizeBytes() {
    return this.payloadSizeBytes;
  }

  public String getQueue() {
    return queue;
  }
}