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Email_Service
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optional attachment implemented

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pull/12/head
Chandrasegar Jeyanthinathakkurukkal 9 months ago
parent 8b293a9f10
commit 44e23a6d93
4 changed files with 59 additions and 30 deletions
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1
src/main/java/entgra/mailsender/Controller/MailController.java
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@ -26,7 +26,6 @@ public class MailController {
private static final Logger logger = LoggerFactory.getLogger(MailController.class);
@PostMapping
public ResponseEntity<String> sendEmail(@ModelAttribute MailModel emailModel) {
String msg;

43
src/main/java/entgra/mailsender/DAO/Impl/MailDAOImpl.java
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@ -2,11 +2,16 @@ package entgra.mailsender.DAO.Impl;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.ObjectMapper;
import entgra.mailsender.Controller.MailController;
import entgra.mailsender.DAO.MailDAO;
import entgra.mailsender.DTO.MailModel;
import entgra.mailsender.exception.DatabaseAccessException;
import entgra.mailsender.exception.FileConversionException;
import entgra.mailsender.exception.MailProcessingException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import javax.sql.DataSource;
@ -14,20 +19,19 @@ import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.sql.*;
import java.sql.*;//remove the star
import java.time.LocalDate;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
@Component
public class MailDAOImpl implements MailDAO {
Logger logger = Logger.getLogger(String.valueOf(MailDAOImpl.class));
private static final Logger logger = LoggerFactory.getLogger(MailDAOImpl.class);
private DataSource dataSource;
public MailDAOImpl(DataSource dataSource){
public MailDAOImpl(DataSource dataSource) {
this.dataSource = dataSource;
}
@ -43,11 +47,22 @@ public class MailDAOImpl implements MailDAO {
stmt.setString(1, mailModel.getEmailAddress());
stmt.setString(2, mailModel.getMsgTemplate());
stmt.setInt(3, mailModel.getPriority());
stmt.setBytes(4, mailModel.getAttachment().getBytes());
// Set attachment only if it is present
if (mailModel.getAttachment() != null) {
stmt.setBytes(4, mailModel.getAttachment().getBytes());
} else {
stmt.setNull(4, Types.BLOB); // Assuming attachment column is of type BLOB
}
stmt.setString(5, parametersJson);
stmt.setTimestamp(6, current_time);
String filename = mailModel.getAttachment().getOriginalFilename();
stmt.setString(7, filename);
if (mailModel.getAttachment()!=null) {
String filename = mailModel.getAttachment().getOriginalFilename();
stmt.setString(7, filename);
} else {
stmt.setNull(7,Types.VARCHAR);
}
stmt.setDate(8, mailModel.getExpiry_at());
stmt.executeUpdate();
ResultSet rs = stmt.getGeneratedKeys();
@ -69,7 +84,7 @@ public class MailDAOImpl implements MailDAO {
@Override
public List<MailModel> getUnsentMessages() {
String sql = "SELECT * FROM EMAIL WHERE EMAIL_ID NOT IN (SELECT EMAIL_ID FROM SENTEMAIL)";
String sql = "SELECT * FROM EMAIL WHERE EMAIL_ID NOT IN (SELECT EMAIL_ID FROM SENTEMAIL)";//use expiry date and use left join for get the id
List<MailModel> unsentMails = new ArrayList<>();
@ -111,12 +126,14 @@ public class MailDAOImpl implements MailDAO {
List<MailModel.Parameter> parameters = parseJsonParameters(jsonData);
mailModel.setParameters(parameters);
String filename = rs.getString("FILENAME");
mailModel.setFilename(filename);
if (rs.getString("FILENAME") != null) {
String filename = rs.getString("FILENAME");
mailModel.setFilename(filename);
Blob blob = rs.getBlob("ATTACHMENT");
File file = convertBlobToFile(blob, filename);
mailModel.setFile(file);
Blob blob = rs.getBlob("ATTACHMENT");
File file = convertBlobToFile(blob, filename);
mailModel.setFile(file);
}
}
return mailModel;
} catch (IOException e) {

6
src/main/java/entgra/mailsender/Service/Impl/MailQueueServiceImpl.java
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@ -1,10 +1,13 @@
package entgra.mailsender.Service.Impl;
import entgra.mailsender.Controller.MailController;
import entgra.mailsender.DAO.MailDAO;
import entgra.mailsender.DTO.MailModel;
import entgra.mailsender.Service.MailQueueService;
import entgra.mailsender.util.PriorityQueueHolder;
import lombok.RequiredArgsConstructor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@ -12,12 +15,11 @@ import java.util.List;
import java.util.Set;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.atomic.AtomicLong;
import java.util.logging.Logger;
@Service
@RequiredArgsConstructor
public class MailQueueServiceImpl implements MailQueueService {
Logger logger = Logger.getLogger(String.valueOf(MailQueueServiceImpl.class));
private static final Logger logger = LoggerFactory.getLogger(MailQueueServiceImpl.class);
@Autowired
MailDAO mailDAO;

39
src/main/java/entgra/mailsender/Service/Impl/MailServiceImpl.java
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@ -1,5 +1,6 @@
package entgra.mailsender.Service.Impl;
import entgra.mailsender.Controller.MailController;
import entgra.mailsender.DAO.MailDAO;
import entgra.mailsender.DTO.MailModel;
import entgra.mailsender.Service.MailQueueService;
@ -9,6 +10,8 @@ import entgra.mailsender.exception.MailException;
import entgra.mailsender.exception.QueueException;
import entgra.mailsender.util.PriorityQueueHolder;
import jakarta.annotation.PreDestroy;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
@ -17,12 +20,11 @@ import org.springframework.stereotype.Service;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Logger;
@Service
public class MailServiceImpl implements MailService {
Logger logger = Logger.getLogger(String.valueOf(MailServiceImpl.class));
private static final Logger logger = LoggerFactory.getLogger(MailServiceImpl.class);
private volatile boolean shutdownRequested = false;
@Autowired
@ -43,20 +45,29 @@ public class MailServiceImpl implements MailService {
public void sendEmail(MailModel emailModel) throws MailException, SQLException {
if (shutdownRequested) {
String msg = "Server is shutting down. SMS requests will not be accepted.";
logger.warning(msg);
logger.info(msg);
throw new BadRequestException(msg);
}
if (isValidEmailAddress(emailModel.getEmailAddress())) {
String msg = "Invalid Email address";
logger.warning(msg);
logger.warn(msg);
throw new BadRequestException(msg);
}
if (emailModel.getMsgTemplate().isBlank()) {
String msg = "Empty message template";
logger.warn(msg);
throw new BadRequestException(msg);
}
int emailid = mailDAO.addMail(emailModel); // save the mail details in the database and get the auto generated id
emailModel.setEmailId(emailid);
emailModel.setFilename(emailModel.getAttachment().getOriginalFilename());
emailModel.setEmailId(emailid); //uuid
if (emailModel.getAttachment() != null) {
emailModel.setFilename(emailModel.getAttachment().getOriginalFilename());
}
//add to the priority queue
List<MailModel> mailModels = new ArrayList<>();
mailModels.add(emailModel);
@ -76,7 +87,7 @@ public class MailServiceImpl implements MailService {
MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage, true);
mimeMessageHelper.setTo(prioritizedMail.getEmailAddress());
mimeMessageHelper.setSubject("Bill details for March ");
mimeMessageHelper.setSubject("Bill details for March ");//input as a param key
StringBuilder emailBody = new StringBuilder();
emailBody.append(prioritizedMail.getMsgTemplate()).append("\n");
@ -92,7 +103,9 @@ public class MailServiceImpl implements MailService {
mimeMessageHelper.setText(emailBody.toString(), false);
// Append attachments to email body
mimeMessageHelper.addAttachment(prioritizedMail.getFilename(), prioritizedMail.getAttachment());
if (prioritizedMail.getAttachment() != null) {
mimeMessageHelper.addAttachment(prioritizedMail.getFilename(), prioritizedMail.getAttachment());
}
//Store the sent mail to the table
mailDAO.addToSentMail(prioritizedMail.getEmailId());
@ -133,11 +146,6 @@ public class MailServiceImpl implements MailService {
// Append parameters to email body
List<MailModel.Parameter> parameters = prioritizedMail.getParameters();
for (MailModel.Parameter parameter : parameters) {
System.out.println("Parameter name: " + parameter.getKey());
System.out.println("Parameter value: " + parameter.getValue());
}
for (MailModel.Parameter parameter : parameters) {
emailBody.append("\n").append(parameter.getKey()).append(": ").append(parameter.getValue());
}
@ -146,7 +154,10 @@ public class MailServiceImpl implements MailService {
mimeMessageHelper.setText(emailBody.toString(), false);
// Append attachments to email body
mimeMessageHelper.addAttachment(prioritizedMail.getFilename(), prioritizedMail.getFile());
if (prioritizedMail.getAttachment() != null) {
mimeMessageHelper.addAttachment(prioritizedMail.getFilename(), prioritizedMail.getFile());
}
//Store the sent mail to the table
mailDAO.addToSentMail(prioritizedMail.getEmailId());

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