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src/main/java/page/clab/api/global/common/email/application/EmailAsyncService.java
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| @@ -0,0 +1,98 @@ | ||
| package page.clab.api.global.common.email.application; | ||
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| import jakarta.mail.MessagingException; | ||
| import jakarta.mail.internet.MimeMessage; | ||
| import jakarta.mail.internet.MimeUtility; | ||
| import lombok.RequiredArgsConstructor; | ||
| import lombok.extern.slf4j.Slf4j; | ||
| import org.springframework.beans.factory.annotation.Value; | ||
| import org.springframework.core.io.ClassPathResource; | ||
| import org.springframework.mail.javamail.JavaMailSender; | ||
| import org.springframework.mail.javamail.MimeMessageHelper; | ||
| import org.springframework.scheduling.annotation.Async; | ||
| import org.springframework.stereotype.Service; | ||
| import page.clab.api.global.common.email.domain.EmailTask; | ||
| import page.clab.api.global.common.email.domain.EmailTemplateType; | ||
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| import java.io.File; | ||
| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| import static page.clab.api.global.common.email.application.EmailService.emailQueue; | ||
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| @Service | ||
| @Slf4j | ||
| @RequiredArgsConstructor | ||
| public class EmailAsyncService { | ||
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| private final JavaMailSender javaMailSender; | ||
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| @Value("${spring.mail.username}") | ||
| private String sender; | ||
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| private static final int MAX_BATCH_SIZE = 10; | ||
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| @Async | ||
| public void sendEmailAsync(String to, String subject, String content, List<File> files, EmailTemplateType emailTemplateType) throws MessagingException { | ||
| log.debug("Sending email to: {}", to); | ||
| emailQueue.add(new EmailTask(to, subject, content, files, emailTemplateType)); | ||
| } | ||
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| @Async | ||
| public void processEmailQueue() { | ||
| try { | ||
| List<EmailTask> batch = new ArrayList<>(); | ||
| EmailTask task; | ||
| while ((task = emailQueue.poll()) != null) { | ||
| batch.add(task); | ||
| if (batch.size() >= MAX_BATCH_SIZE) { | ||
| sendBatchEmail(batch); | ||
| batch.clear(); | ||
| } | ||
| } | ||
| if (!batch.isEmpty()) { | ||
| sendBatchEmail(batch); | ||
| } | ||
| } catch (Exception e) { | ||
| log.debug("Error processing email queue: {}", e.getMessage(), e); | ||
| } | ||
| } | ||
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| public void sendBatchEmail(List<EmailTask> emailTasks) throws MessagingException, IOException { | ||
| MimeMessage[] mimeMessages = new MimeMessage[emailTasks.size()]; | ||
| for (int i = 0; i < emailTasks.size(); i++) { | ||
| EmailTask task = emailTasks.get(i); | ||
| MimeMessage message = javaMailSender.createMimeMessage(); | ||
| MimeMessageHelper messageHelper = new MimeMessageHelper(message, true, "UTF-8"); | ||
| messageHelper.setFrom(sender); | ||
| messageHelper.setTo(task.getTo()); | ||
| messageHelper.setSubject(task.getSubject()); | ||
| messageHelper.setText(task.getContent(), true); | ||
| setImageInTemplate(messageHelper, task.getTemplateType()); | ||
| if (task.getFiles() != null) { | ||
| for (File file : task.getFiles()) { | ||
| messageHelper.addAttachment(MimeUtility.encodeText(file.getName(), "UTF-8", "B"), file); | ||
| } | ||
| } | ||
| mimeMessages[i] = message; | ||
| } | ||
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| try { | ||
| javaMailSender.send(mimeMessages); | ||
| } catch (Exception e) { | ||
| log.error("Error sending batch email: " + e.getMessage(), e); | ||
| } | ||
| log.debug("Batch email sent successfully."); | ||
| } | ||
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| private void setImageInTemplate(MimeMessageHelper messageHelper, EmailTemplateType templateType) throws MessagingException { | ||
| switch(templateType) { | ||
| case NORMAL -> { | ||
| messageHelper.addInline("image-1", new ClassPathResource("images/image-1.png")); | ||
| break; | ||
| } | ||
| } | ||
| } | ||
|
|
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| } |
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22
src/main/java/page/clab/api/global/common/email/domain/EmailTask.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| package page.clab.api.global.common.email.domain; | ||
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| import lombok.AllArgsConstructor; | ||
| import lombok.Getter; | ||
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| import java.io.File; | ||
| import java.util.List; | ||
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| @Getter | ||
| @AllArgsConstructor | ||
| public class EmailTask { | ||
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| private final String to; | ||
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| private final String subject; | ||
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| private final String content; | ||
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| private final List<File> files; | ||
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| private final EmailTemplateType templateType; | ||
| } |