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 com.alibaba.cloudapp.mail.demo.service;
  
  import com.alibaba.cloudapp.api.email.EmailService;
  import com.alibaba.cloudapp.exeption.CloudAppException;
  import com.alibaba.cloudapp.model.MailUser;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Autowired;
  import org.springframework.beans.factory.annotation.Value;
  import org.springframework.core.io.Resource;
  import org.springframework.core.io.ResourceLoader;
  import org.springframework.stereotype.Service;
  
  import java.io.IOException;
  import java.nio.file.Path;
  
  @Service
  public class MailDemoService {
      
      private static final Logger logger =
              LoggerFactory.getLogger(MailDemoService.class);
      
      @Autowired
      private EmailService mailService;
      @Value("${com.alibaba.cloudapp.mail.username}")
      private String from;
      
      @Autowired
      private ResourceLoader resourceLoader;
      
      /**
       * read file from resources folder
       * @param fileName the name of file
       * @return file path
       * @throws IOException if read file error
       */
      public Path readFileFromResources(String fileName) throws IOException {
          Resource resource = resourceLoader.getResource("classpath:" + fileName);
          return resource.getFile().toPath();
      }
      
      public void sendMail(String to, String subject, String content) {
          try {
              MailUser mailUser = new MailUser()
                      .setTo(to)
                      .setFrom(from);
              
              mailService.sendEmail(mailUser, subject, content, false);
              
          } catch (CloudAppException e) {
              logger.error("send mail fail:" + e.getMessage());
              throw new RuntimeException(e);
          }
      }
      
      public void sendMailFile(String to, String subject, String content) {
          try {
              MailUser mailUser = new MailUser()
                      .setTo(to)
                      .setFrom(from);
              
              Path path = readFileFromResources("README.txt");
              
              mailService.sendEmail(mailUser, subject, content, path, false);
              
          } catch (CloudAppException e) {
              logger.error("send mail fail:" + e.getMessage());
              throw new RuntimeException(e);
              
          } catch (IOException e) {
              logger.error("Fail to read file:" + e.getMessage());
              throw new RuntimeException(e);
          }
      }
      
  }
  