Refactoring of MailService

@@ -31,6 +31,7 @@ import org.springframework.mail.javamail.MimeMessageHelper;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.freemarker.FreeMarkerTemplateUtils;
 import org.thingsboard.rule.engine.api.MailService;
+import org.thingsboard.rule.engine.api.TbEmail;
 import org.thingsboard.server.common.data.AdminSettings;
 import org.thingsboard.server.common.data.ApiFeature;
 import org.thingsboard.server.common.data.ApiUsageRecordKey;
@@ -250,35 +251,35 @@ public class DefaultMailService implements MailService {
     }
 
     @Override
-    public void send(TenantId tenantId, CustomerId customerId, String from, String to, String cc, String bcc, String subject, String body, boolean isHtml, Map<String, String> images) throws ThingsboardException {
-        sendMail(tenantId, customerId, from, to, cc, bcc, subject, body, isHtml, images, this.mailSender);
+    public void send(TenantId tenantId, CustomerId customerId, TbEmail tbEmail) throws ThingsboardException {
+        sendMail(tenantId, customerId, tbEmail, this.mailSender);
     }
 
     @Override
-    public void send(TenantId tenantId, CustomerId customerId, String from, String to, String cc, String bcc, String subject, String body, boolean isHtml, Map<String, String> images, JavaMailSender javaMailSender) throws ThingsboardException {
-        sendMail(tenantId, customerId, from, to, cc, bcc, subject, body, isHtml, images, javaMailSender);
+    public void send(TenantId tenantId, CustomerId customerId, TbEmail tbEmail, JavaMailSender javaMailSender) throws ThingsboardException {
+        sendMail(tenantId, customerId, tbEmail, javaMailSender);
     }
 
-    private void sendMail(TenantId tenantId, CustomerId customerId, String from, String to, String cc, String bcc, String subject, String body, boolean isHtml, Map<String, String> images, JavaMailSender javaMailSender) throws ThingsboardException {
+    private void sendMail(TenantId tenantId, CustomerId customerId, TbEmail tbEmail, JavaMailSender javaMailSender) throws ThingsboardException {
         if (apiUsageStateService.getApiUsageState(tenantId).isEmailSendEnabled()) {
             try {
                 MimeMessage mailMsg = javaMailSender.createMimeMessage();
-                boolean multipart = (images != null && !images.isEmpty());
+                boolean multipart = (tbEmail.getImages() != null && !tbEmail.getImages().isEmpty());
                 MimeMessageHelper helper = new MimeMessageHelper(mailMsg, multipart, "UTF-8");
-                helper.setFrom(StringUtils.isBlank(from) ? mailFrom : from);
-                helper.setTo(to.split("\\s*,\\s*"));
-                if (!StringUtils.isBlank(cc)) {
-                    helper.setCc(cc.split("\\s*,\\s*"));
+                helper.setFrom(StringUtils.isBlank(tbEmail.getFrom()) ? mailFrom : tbEmail.getFrom());
+                helper.setTo(tbEmail.getTo().split("\\s*,\\s*"));
+                if (!StringUtils.isBlank(tbEmail.getCc())) {
+                    helper.setCc(tbEmail.getCc().split("\\s*,\\s*"));
                 }
-                if (!StringUtils.isBlank(bcc)) {
-                    helper.setBcc(bcc.split("\\s*,\\s*"));
+                if (!StringUtils.isBlank(tbEmail.getBcc())) {
+                    helper.setBcc(tbEmail.getBcc().split("\\s*,\\s*"));
                 }
-                helper.setSubject(subject);
-                helper.setText(body, isHtml);
+                helper.setSubject(tbEmail.getSubject());
+                helper.setText(tbEmail.getBody(), tbEmail.isHtml());
 
                 if (multipart) {
-                    for (String imgId : images.keySet()) {
-                        String imgValue = images.get(imgId);
+                    for (String imgId : tbEmail.getImages().keySet()) {
+                        String imgValue = tbEmail.getImages().get(imgId);
                         String value = imgValue.replaceFirst("^data:image/[^;]*;base64,?", "");
                         byte[] bytes = javax.xml.bind.DatatypeConverter.parseBase64Binary(value);
                         String contentType = helper.getFileTypeMap().getContentType(imgId);

@@ -46,9 +46,9 @@ public interface MailService {
 
     void sendAccountLockoutEmail(String lockoutEmail, String email, Integer maxFailedLoginAttempts) throws ThingsboardException;
 
-    void send(TenantId tenantId, CustomerId customerId, String from, String to, String cc, String bcc, String subject, String body, boolean isHtml, Map<String, String> images) throws ThingsboardException;
+    void send(TenantId tenantId, CustomerId customerId, TbEmail tbEmail) throws ThingsboardException;
 
-    void send(TenantId tenantId, CustomerId customerId, String from, String to, String cc, String bcc, String subject, String body, boolean isHtml, Map<String, String> images, JavaMailSender javaMailSender) throws ThingsboardException;
+    void send(TenantId tenantId, CustomerId customerId, TbEmail tbEmail, JavaMailSender javaMailSender) throws ThingsboardException;
 
     void sendApiFeatureStateEmail(ApiFeature apiFeature, ApiUsageStateValue stateValue, String email, ApiUsageStateMailMessage msg) throws ThingsboardException;
 

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.thingsboard.rule.engine.mail;
+package org.thingsboard.rule.engine.api;
 
 import lombok.Builder;
 import lombok.Data;
@@ -22,7 +22,7 @@ import java.util.Map;
 
 @Data
 @Builder
-class EmailPojo {
+public class TbEmail {
 
     private final String from;
     private final String to;

@@ -22,6 +22,7 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.util.StringUtils;
 import org.thingsboard.rule.engine.api.RuleNode;
 import org.thingsboard.rule.engine.api.TbContext;
+import org.thingsboard.rule.engine.api.TbEmail;
 import org.thingsboard.rule.engine.api.TbNode;
 import org.thingsboard.rule.engine.api.TbNodeConfiguration;
 import org.thingsboard.rule.engine.api.TbNodeException;
@@ -65,7 +66,7 @@ public class TbMsgToEmailNode implements TbNode {
     @Override
     public void onMsg(TbContext ctx, TbMsg msg) {
         try {
-            EmailPojo email = convert(msg);
+            TbEmail email = convert(msg);
             TbMsg emailMsg = buildEmailMsg(ctx, msg, email);
             ctx.tellNext(emailMsg, SUCCESS);
         } catch (Exception ex) {
@@ -74,13 +75,13 @@ public class TbMsgToEmailNode implements TbNode {
         }
     }
 
-    private TbMsg buildEmailMsg(TbContext ctx, TbMsg msg, EmailPojo email) throws JsonProcessingException {
+    private TbMsg buildEmailMsg(TbContext ctx, TbMsg msg, TbEmail email) throws JsonProcessingException {
         String emailJson = MAPPER.writeValueAsString(email);
         return ctx.transformMsg(msg, SEND_EMAIL_TYPE, msg.getOriginator(), msg.getMetaData().copy(), emailJson);
     }
 
-    private EmailPojo convert(TbMsg msg) throws IOException {
-        EmailPojo.EmailPojoBuilder builder = EmailPojo.builder();
+    private TbEmail convert(TbMsg msg) throws IOException {
+        TbEmail.TbEmailBuilder builder = TbEmail.builder();
         builder.from(fromTemplate(this.config.getFromTemplate(), msg));
         builder.to(fromTemplate(this.config.getToTemplate(), msg));
         builder.cc(fromTemplate(this.config.getCcTemplate(), msg));

@@ -21,6 +21,7 @@ import org.apache.commons.lang3.StringUtils;
 import org.springframework.mail.javamail.JavaMailSenderImpl;
 import org.thingsboard.rule.engine.api.RuleNode;
 import org.thingsboard.rule.engine.api.TbContext;
+import org.thingsboard.rule.engine.api.TbEmail;
 import org.thingsboard.rule.engine.api.TbNode;
 import org.thingsboard.rule.engine.api.TbNodeConfiguration;
 import org.thingsboard.rule.engine.api.TbNodeException;
@@ -71,7 +72,7 @@ public class TbSendEmailNode implements TbNode {
     public void onMsg(TbContext ctx, TbMsg msg) {
         try {
             validateType(msg.getType());
-            EmailPojo email = getEmail(msg);
+            TbEmail email = getEmail(msg);
             withCallback(ctx.getMailExecutor().executeAsync(() -> {
                         sendEmail(ctx, msg, email);
                         return null;
@@ -83,18 +84,16 @@ public class TbSendEmailNode implements TbNode {
         }
     }
 
-    private void sendEmail(TbContext ctx, TbMsg msg, EmailPojo email) throws Exception {
+    private void sendEmail(TbContext ctx, TbMsg msg, TbEmail email) throws Exception {
         if (this.config.isUseSystemSmtpSettings()) {
-            ctx.getMailService().send(ctx.getTenantId(), msg.getCustomerId(), email.getFrom(), email.getTo(), email.getCc(),
-                    email.getBcc(), email.getSubject(), email.getBody(), email.isHtml(), email.getImages());
+            ctx.getMailService().send(ctx.getTenantId(), msg.getCustomerId(), email);
         } else {
-            ctx.getMailService().send(ctx.getTenantId(), msg.getCustomerId(), email.getFrom(), email.getTo(), email.getCc(),
-                    email.getBcc(), email.getSubject(), email.getBody(), email.isHtml(), email.getImages(), this.mailSender);
+            ctx.getMailService().send(ctx.getTenantId(), msg.getCustomerId(), email, this.mailSender);
         }
     }
 
-    private EmailPojo getEmail(TbMsg msg) throws IOException {
-        EmailPojo email = MAPPER.readValue(msg.getData(), EmailPojo.class);
+    private TbEmail getEmail(TbMsg msg) throws IOException {
+        TbEmail email = MAPPER.readValue(msg.getData(), TbEmail.class);
         if (StringUtils.isBlank(email.getTo())) {
             throw new IllegalStateException("Email destination can not be blank [" + email.getTo() + "]");
         }

@@ -23,6 +23,7 @@ import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;
 import org.thingsboard.rule.engine.api.TbContext;
+import org.thingsboard.rule.engine.api.TbEmail;
 import org.thingsboard.rule.engine.api.TbNodeConfiguration;
 import org.thingsboard.rule.engine.api.TbNodeException;
 import org.thingsboard.server.common.data.id.DeviceId;
@@ -79,9 +80,9 @@ public class TbMsgToEmailNodeTest {
         assertEquals("oreo", metadataCaptor.getValue().getValue("username"));
         assertNotSame(metaData, metadataCaptor.getValue());
 
-        EmailPojo actual = new ObjectMapper().readValue(dataCaptor.getValue().getBytes(), EmailPojo.class);
+        TbEmail actual = new ObjectMapper().readValue(dataCaptor.getValue().getBytes(), TbEmail.class);
 
-        EmailPojo expected = new EmailPojo.EmailPojoBuilder()
+        TbEmail expected = TbEmail.builder()
                 .from("test@mail.org")
                 .to("user@email.io")
                 .subject("Hi oreo there")