content: /*
   * 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.camel.component.mail;
  
  import java.io.IOException;
  import java.util.Map;
  
  import jakarta.mail.Message;
  import jakarta.mail.MessagingException;
  
  import org.apache.camel.Exchange;
  import org.apache.camel.RuntimeCamelException;
  import org.apache.camel.support.DefaultMessage;
  import org.apache.camel.support.ExchangeHelper;
  import org.apache.camel.util.ObjectHelper;
  
  /**
   * Represents a {@link org.apache.camel.Message} for working with Mail
   */
  public class MailMessage extends DefaultMessage {
      // we need a copy of the original message in case we need to workaround a charset issue when extracting
      // mail content, see more in MailBinding
      private Message originalMailMessage;
      private Message mailMessage;
      private boolean mapMailMessage;
  
      public MailMessage(Exchange exchange, Message message, boolean mapMailMessage) {
          super(exchange);
          this.originalMailMessage = this.mailMessage = message;
          this.mapMailMessage = mapMailMessage;
      }
  
      @Override
      public String toString() {
          // do not dump the mail content, as it requires live connection to the mail server
          return "MailMessage@" + ObjectHelper.getIdentityHashCode(this);
      }
  
      @Override
      public MailMessage copy() {
          MailMessage answer = (MailMessage) super.copy();
          answer.originalMailMessage = originalMailMessage;
          answer.mailMessage = mailMessage;
          return answer;
      }
  
      /**
       * Returns the original underlying Mail message
       */
      public Message getOriginalMessage() {
          return originalMailMessage;
      }
  
      /**
       * Returns the underlying Mail message
       */
      public Message getMessage() {
          return mailMessage;
      }
  
      public void setMessage(Message mailMessage) {
          if (this.originalMailMessage == null) {
              this.originalMailMessage = mailMessage;
          }
          this.mailMessage = mailMessage;
      }
  
      @Override
      public MailMessage newInstance() {
          MailMessage answer = new MailMessage(null, null, this.mapMailMessage);
          answer.setCamelContext(getCamelContext());
          return answer;
      }
  
      @Override
      protected Object createBody() {
          if (mailMessage != null) {
              MailBinding binding = ExchangeHelper.getBinding(getExchange(), MailBinding.class);
              return binding != null ? binding.extractBodyFromMail(getExchange(), this) : null;
          }
          return null;
      }
  
      @Override
      protected void populateInitialHeaders(Map<String, Object> map) {
          if (mailMessage != null) {
              try {
                  MailBinding binding = ExchangeHelper.getBinding(getExchange(), MailBinding.class);
                  if (binding != null) {
                      map.putAll(binding.extractHeadersFromMail(mailMessage, getExchange()));
                  }
              } catch (MessagingException | IOException e) {
                  throw new RuntimeCamelException("Error accessing headers due to: " + e.getMessage(), e);
              }
          }
      }
  
      @Override
      public void copyFrom(org.apache.camel.Message that) {
          // only do a deep copy if we need to (yes when that is not a mail message, or if the mapMailMessage is true)
          boolean needCopy = !(that instanceof MailMessage) || (((MailMessage) that).mapMailMessage);
          if (needCopy) {
              super.copyFrom(that);
          } else {
              // no deep copy needed, but copy message id
              setMessageId(that.getMessageId());
          }
          if (that instanceof MailMessage) {
              MailMessage tmpMailMessage = (MailMessage) that;
              this.originalMailMessage = tmpMailMessage.originalMailMessage;
              this.mailMessage = tmpMailMessage.mailMessage;
              this.mapMailMessage = tmpMailMessage.mapMailMessage;
          }
          // cover over exchange if none has been assigned
          if (getExchange() == null) {
              setExchange(that.getExchange());
          }
      }
  
  }
  