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19846 implement basic email notifications #167

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palina-krukovich
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@palina-krukovich palina-krukovich commented Oct 23, 2024

Summary by CodeRabbit

Release Notes

  • New Features

    • Introduced email functionality with a new email service and message formatter.
    • Added HTML and text email templates for event notifications.
    • Implemented Slack notification service for real-time updates.
  • Bug Fixes

    • Enhanced error handling for email and Slack message sending processes.
  • Documentation

    • Updated templates to provide dynamic content for event notifications.
  • Chores

    • Added utility for number formatting to improve data presentation.

@palina-krukovich palina-krukovich self-assigned this Oct 23, 2024
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coderabbitai bot commented Oct 23, 2024

Walkthrough

The changes introduce new email functionality to the project, primarily through the addition of a new dependency in build.gradle for Spring Boot's mail starter. A series of new classes have been created, including MailSenderConfiguration, EmailDto, and various notification services for handling email and Slack notifications. Additionally, new templates for email notifications have been added, enhancing the application's ability to send formatted event updates via email. Minor adjustments to existing classes improve the overall notification processing logic.

Changes

File Path Change Summary
build.gradle Added dependency: implementation 'org.springframework.boot:spring-boot-starter-mail'. Minor adjustments to jacocoTestReport task configuration.
src/main/java/io/kontur/disasterninja/config/MailSenderConfiguration.java Added class MailSenderConfiguration and method public JavaMailSender javaMailSender().
src/main/java/io/kontur/disasterninja/dto/EmailDto.java Added class EmailDto with fields: private String subject, private String textBody, private String htmlBody.
src/main/java/io/kontur/disasterninja/notifications/MessageFormatter.java Added class MessageFormatter with methods: protected FeedEpisode getLatestEpisode(EventApiEventDto event), protected String getMessageColorCode(EventApiEventDto event, FeedEpisode latestEpisode, boolean unicode), protected String getEventStatus(EventApiEventDto event).
src/main/java/io/kontur/disasterninja/notifications/NotificationService.java Added abstract class NotificationService with methods: public boolean isApplicable(EventApiEventDto event), public abstract void process(EventApiEventDto event, Map<String, Object> urbanPopulationProperties, Map<String, Double> analytics), and private methods for event checks.
src/main/java/io/kontur/disasterninja/notifications/NotificationsProcessor.java Updated constructor and removed process method. Integrated notification services processing in run method.
src/main/java/io/kontur/disasterninja/notifications/email/EmailMessageFormatter.java Added class EmailMessageFormatter with methods: public EmailDto format(EventApiEventDto event, Map<String, Object> urbanPopulationProperties, Map<String, Double> analytics), private String loadTemplate(String templateName), private String createSubject(EventApiEventDto event, FeedEpisode lastEpisode), private String replacePlaceholders(String template, EventApiEventDto event, FeedEpisode lastEpisode, Map<String, Object> urbanPopulationProperties).
src/main/java/io/kontur/disasterninja/notifications/email/EmailNotificationService.java Added class EmailNotificationService with method public void process(EventApiEventDto event, Map<String, Object> urbanPopulationProperties, Map<String, Double> analytics).
src/main/java/io/kontur/disasterninja/notifications/email/EmailSender.java Added class EmailSender with method public void send(EmailDto emailDto).
src/main/java/io/kontur/disasterninja/notifications/slack/SlackMessageFormatter.java Updated class to extend MessageFormatter and modified method implementations.
src/main/java/io/kontur/disasterninja/notifications/slack/SlackNotificationService.java Added class SlackNotificationService with method public void process(EventApiEventDto event, Map<String, Object> urbanPopulationProperties, Map<String, Double> analytics).
src/main/java/io/kontur/disasterninja/notifications/slack/SlackSender.java Added class SlackSender with method public void send(String message).
src/main/java/io/kontur/disasterninja/util/FormatUtil.java Added class FormatUtil with method public static String formatNumber(Object number).
src/main/resources/notification/gg-email-template.html Added new HTML email template for notifications.
src/main/resources/notification/gg-email-template.txt Added new text email template for notifications.

Poem

In the fields where emails fly,
A new sender greets the sky.
With templates bright and messages clear,
Notifications spread, bringing cheer!
Slack and mail, they now unite,
To share the news both day and night. 🐇✉️


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Actionable comments posted: 50

📜 Review details

Configuration used: CodeRabbit UI
Review profile: ASSERTIVE

📥 Commits

Files that changed from the base of the PR and between bebceb6 and 8830add.

📒 Files selected for processing (15)
  • build.gradle (1 hunks)
  • src/main/java/io/kontur/disasterninja/config/MailSenderConfiguration.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/dto/EmailDto.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/MessageFormatter.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/NotificationService.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/NotificationsProcessor.java (2 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/email/EmailMessageFormatter.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/email/EmailNotificationService.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/email/EmailSender.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/slack/SlackMessageFormatter.java (2 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/slack/SlackNotificationService.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/slack/SlackSender.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/util/FormatUtil.java (1 hunks)
  • src/main/resources/notification/gg-email-template.html (1 hunks)
  • src/main/resources/notification/gg-email-template.txt (1 hunks)
🧰 Additional context used
🔇 Additional comments (19)
src/main/java/io/kontur/disasterninja/dto/EmailDto.java (1)

1-12: Verify email template integration

Since this DTO will be used with email templates (as mentioned in the PR summary), we should verify the template integration.

✅ Verification successful

Let me analyze the email template integration further by checking the content of the template file and the email formatter class.

This will help us understand how the EmailDto is integrated with the template system.


Let me check how the EmailDto is actually used in the codebase and how it's connected to the template processing.

This will help us understand the complete flow of email processing and how EmailDto fits into it.


Email template integration is properly implemented

The verification shows that EmailDto is correctly integrated with the email template system:

  1. The HTML template (gg-email-template.html) exists and contains proper placeholders
  2. EmailMessageFormatter loads and processes the template, creating an EmailDto with subject, text, and HTML content
  3. EmailSender correctly uses the EmailDto fields to send emails via JavaMailSender
  4. Complete flow is orchestrated by EmailNotificationService

The implementation follows a clean separation of concerns:

  • Template loading and formatting (EmailMessageFormatter)
  • Email sending (EmailSender)
  • Orchestration (EmailNotificationService)
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for email templates and their usage with EmailDto

# Look for template files
echo "Checking for email templates..."
fd -e html -e ftl -e vm -e mustache

# Look for template engine configuration
echo -e "\nChecking for template engine configuration..."
rg -l "spring\..*template" --type properties --type yaml

# Look for template processing code
echo -e "\nChecking for template processing code..."
rg -l "Template|template" --type java

Length of output: 2166


Script:

#!/bin/bash
# Check email template content and formatter implementation
echo "Email template content:"
cat src/main/resources/notification/gg-email-template.html

echo -e "\nEmail formatter implementation:"
rg -A 10 "class EmailMessageFormatter" src/main/java/io/kontur/disasterninja/notifications/email/EmailMessageFormatter.java

Length of output: 2073


Script:

#!/bin/bash
# Search for EmailDto usage and email-related code
echo "Searching for EmailDto usage:"
rg -A 10 "EmailDto" 

echo -e "\nChecking email formatter methods:"
rg -A 20 "format.*Email" src/main/java/io/kontur/disasterninja/notifications/email/EmailMessageFormatter.java

echo -e "\nChecking for email sending implementation:"
rg -A 10 "send.*Email|email.*send" --type java

Length of output: 12451

src/main/java/io/kontur/disasterninja/util/FormatUtil.java (1)

1-17: Verify format pattern meets all email notification requirements

Let's verify the usage of this utility and ensure the format pattern "#,###.##" meets all requirements for email notifications.

✅ Verification successful

Let me gather more information about how FormatUtil is being used in the email and slack formatters, and check the analytics service usage to understand if the format patterns are consistent.


Let me check how these formatters actually use FormatUtil in their implementation to ensure the format pattern is appropriate for all cases.


Based on the gathered information, I can now provide a final response:

Format pattern is appropriate for all notification use cases

The "#,###.##" format pattern in FormatUtil is verified to be suitable for all its usages:

  • It's used consistently for formatting various numerical metrics in both email and Slack notifications:
    • Area measurements (km²)
    • Population counts
    • Percentages
    • Forest/industrial areas
    • OSM quality metrics

The same pattern is also used in AnalyticsService, maintaining consistency across the application. The format supports both whole numbers (automatically dropping unnecessary decimals) and decimal values where needed.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Find all usages of FormatUtil to verify the format pattern meets requirements
echo "Searching for FormatUtil usage..."
rg -l "FormatUtil" 

# Look for other number formatting patterns in the codebase
echo "Checking for other number formatting patterns..."
rg "new DecimalFormat\(" 

# Check email templates for number formatting
echo "Checking email templates..."
fd -e html -e ftl -e template

Length of output: 976


Script:

#!/bin/bash
# Check how FormatUtil is used in email and slack formatters
echo "EmailMessageFormatter usage:"
rg -A 5 "FormatUtil" src/main/java/io/kontur/disasterninja/notifications/email/EmailMessageFormatter.java

echo -e "\nSlackMessageFormatter usage:"
rg -A 5 "FormatUtil" src/main/java/io/kontur/disasterninja/notifications/slack/SlackMessageFormatter.java

echo -e "\nAnalyticsService number formatting usage:"
rg -A 5 "numberFormat" src/main/java/io/kontur/disasterninja/service/AnalyticsService.java

echo -e "\nChecking email template for number placeholders:"
cat src/main/resources/notification/gg-email-template.html

Length of output: 3646


Script:

#!/bin/bash
# Check the actual usage of formatNumber in the formatters
echo "EmailMessageFormatter implementation:"
ast-grep --pattern 'formatNumber($_)'

echo -e "\nCheck for variable assignments and method calls in EmailMessageFormatter:"
rg -A 5 "= format" src/main/java/io/kontur/disasterninja/notifications/email/EmailMessageFormatter.java

echo -e "\nCheck for variable assignments and method calls in SlackMessageFormatter:"
rg -A 5 "= format" src/main/java/io/kontur/disasterninja/notifications/slack/SlackMessageFormatter.java

Length of output: 7830

src/main/resources/notification/gg-email-template.txt (2)

15-16: Specify date format for consistency.

The dates should follow a consistent, unambiguous format. Consider using ISO 8601 or specifying the timezone for clarity.


6-9: 🧹 Nitpick (assertive)

Add units formatting for better readability.

The numerical values should be properly formatted with thousands separators and consistent decimal places for better readability.

Let's verify how these values are formatted in the code:

src/main/java/io/kontur/disasterninja/notifications/slack/SlackSender.java (1)

1-33: Verify Slack notification configuration across environments

Since this is a new notification system, we should ensure proper configuration across different environments.

Let's check for any existing Slack-related configurations:

src/main/java/io/kontur/disasterninja/notifications/slack/SlackNotificationService.java (1)

14-14: Verify integration with email notification system.

Since this PR implements email notifications, let's verify how this Slack service integrates with the new email notification system.

✅ Verification successful

Let me gather more information about how these notification services are used together.


Let me check one final aspect about how these services are configured and initialized.


Based on the gathered information, I can now provide the final response:

Integration with email notification system is properly implemented

The codebase shows a well-structured notification system where:

  • Both SlackNotificationService and EmailNotificationService extend the same abstract NotificationService class
  • All notification components are consistently configured with @ConditionalOnProperty(value = "notifications.enabled")
  • The notification services share common validation logic through the base class (event type, severity, and populated area checks)
  • Each service has its own dedicated formatter and sender components following the same pattern
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for parallel email notification service implementation and common parent class usage

# Test 1: Look for email notification service implementation
echo "Checking for email notification service implementation..."
rg -l "class \w*EmailNotification\w*Service\b.*extends NotificationService"

# Test 2: Check NotificationService usage
echo "Checking NotificationService usage in notification processor..."
ast-grep --pattern 'class $_ {
  $$$
  private List<NotificationService> $_ = $_
  $$$
}'

Length of output: 519


Script:

#!/bin/bash
# Check the implementation details and usage patterns

# Look at NotificationService base class
echo "Checking NotificationService base class..."
rg -A 10 "^public\s+(abstract\s+)?class\s+NotificationService\b"

# Look for where multiple notification services are used together
echo "Checking for notification service usage patterns..."
rg -A 5 "NotificationService.*[;=]"

# Look specifically at how EmailNotificationService is implemented
echo "Checking EmailNotificationService implementation..."
rg -A 10 "class EmailNotificationService extends NotificationService"

Length of output: 7264


Script:

#!/bin/bash
# Check configuration and initialization

# Look for configuration properties and conditional initialization
echo "Checking conditional properties for both services..."
rg -B 2 -A 1 "@ConditionalOnProperty.*notification"

# Check NotificationsProcessor constructor to see how services are injected
echo "Checking NotificationsProcessor constructor..."
rg -A 10 "NotificationsProcessor\([^)]*NotificationService" 

Length of output: 4715

src/main/java/io/kontur/disasterninja/notifications/email/EmailNotificationService.java (2)

17-17: LGTM!

Logger is properly configured following best practices.


1-39: Verify integration with notification system

Let's verify several aspects of the implementation:

src/main/java/io/kontur/disasterninja/notifications/MessageFormatter.java (1)

1-15: LGTM! Well-structured class declaration with appropriate conditional loading.

The class follows Spring best practices with proper component scanning and conditional property-based initialization.

build.gradle (1)

60-62: LGTM! Spring Boot Mail Starter dependency added correctly.

The dependency is properly placed and will be version-managed through the Spring Boot dependency management plugin.

src/main/java/io/kontur/disasterninja/notifications/email/EmailMessageFormatter.java (3)

1-36: LGTM! Well-structured class setup with proper dependency injection.

The class is properly configured with Spring annotations and follows best practices for logger and formatter initialization.


50-57: LGTM! Robust template loading implementation.

The method properly handles resources and provides clear error messages for missing templates.


39-40: Verify the existence of email templates.

The code references two template files that need to be present in the classpath.

✅ Verification successful

Since the executed script has provided clear evidence that both required template files exist at the expected locations in the src/main/resources/notification/ directory, I can generate the final response:

Template files are present and correctly located

Both required email templates exist in the classpath:

  • src/main/resources/notification/gg-email-template.txt
  • src/main/resources/notification/gg-email-template.html
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check if the required template files exist
echo "Checking for email templates..."
fd -t f "gg-email-template" -E "*.class"

Length of output: 222

src/main/java/io/kontur/disasterninja/notifications/NotificationService.java (1)

39-41: Verify the logic for filtering events based on severity.

The method isEventSeverityAppropriate filters out events whose names start with "Green." Ensure that this logic aligns with the desired behavior for event severity filtering.

Run the following script to check for events starting with "Green" and review their handling:

✅ Verification successful

Let me gather more context about this event filtering logic to understand its purpose and implementation better.


Let me gather one final piece of information to understand the complete notification flow.


Based on the gathered information, I can now provide a final response about the event severity filtering logic.

The event severity filtering implementation is correct and intentional

The isEventSeverityAppropriate method is part of a broader notification filtering system that works in conjunction with the MessageFormatter class. The filtering logic specifically excludes events with names starting with "Green" because:

  1. The codebase shows a consistent color-coding system for event severity levels in MessageFormatter, where "Green", "Orange", and "Red" represent different severity levels
  2. The Severity enum shows a proper hierarchy (EXTREME, SEVERE, etc.)
  3. The notification service is designed to filter out lower severity ("Green") events to avoid notification noise for less critical situations

The implementation aligns with the intended behavior of focusing notifications on more severe events.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Find events with names starting with 'Green' to verify filtering logic.

# Test: Search for event names starting with 'Green'. Expect: Understand how many events are affected.
rg 'event.getName\(\).*startsWith\("Green"\)'

Length of output: 217


Script:

#!/bin/bash
# Search for the usage of isEventSeverityAppropriate method and related event filtering logic
rg -A 5 "isEventSeverityAppropriate" 

# Look for any tests related to this filtering logic
fd "Test.*\.java" --exec rg -l "Green"

# Search for documentation or comments explaining the severity levels
rg -B 2 -A 2 "severity|Severity" --type java

Length of output: 13415


Script:

#!/bin/bash
# Look for tests related to NotificationService to understand the expected behavior
fd "Test.*\.java" --exec rg -l "NotificationService"

# Look for any documentation about notification filtering
rg -B 3 -A 3 "isEventSeverityAppropriate|Green" --type java --type md

Length of output: 7450

src/main/java/io/kontur/disasterninja/notifications/NotificationsProcessor.java (2)

50-54: Constructor Injection Consistency

The constructor now includes List<NotificationService> notificationServices. Confirm that the parameter order matches the field assignments and that all dependencies are correctly injected.


45-45: Verify Dependency Injection of notificationServices

The notificationServices list is introduced as a new dependency. Ensure that all implementing classes of NotificationService are properly annotated and recognized by the Spring container for dependency injection to work correctly.

To automate this verification, run the following script to list all classes implementing NotificationService:

✅ Verification successful

Let me try a different approach to verify the implementation classes and their Spring annotations.

This should help us find:

  1. The interface definition
  2. Any implementing classes even if the pattern is slightly different
  3. Spring service annotations related to NotificationService implementations

Let me try one final search pattern to locate the interface and implementations.

This broader search should help us locate the relevant files and their Spring configurations.


Spring DI for notificationServices is properly configured

Based on the code analysis, the dependency injection for notificationServices is correctly set up:

  • Found two implementing classes properly annotated with @Component:
    • EmailNotificationService extends NotificationService
    • SlackNotificationService extends NotificationService
  • Both implementations are conditionally enabled with @ConditionalOnProperty(value = "notifications.enabled")
  • The base NotificationService class is abstract and also annotated with @Component
  • Spring's autowiring will correctly inject the list of all implementing services into NotificationsProcessor's constructor
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: List all classes implementing NotificationService
# Expected Result: All implementing classes are listed, confirming proper setup.

# Find all Java classes implementing NotificationService
rg --multiline --type java 'class\s+\w+\s+implements\s+NotificationService' -l

Length of output: 80


Script:

#!/bin/bash
# First, let's find the NotificationService interface definition to understand the package
rg --type java "interface NotificationService"

# Then let's search for classes that might implement it using a broader pattern
rg --type java -A 5 "implements.*NotificationService"

# Also search for any @Service annotations to find Spring services
rg --type java "@Service.*NotificationService"

Length of output: 153


Script:

#!/bin/bash
# Let's first find all files that might contain NotificationService in their name or content
fd NotificationService

# Then let's look at the content of any Java files containing NotificationService
rg -l "NotificationService" --type java | xargs cat

# Also search for potential Spring component annotations more broadly
rg -l "@(Service|Component).*class" --type java

Length of output: 11921

src/main/java/io/kontur/disasterninja/notifications/slack/SlackMessageFormatter.java (3)

1-1: Package restructuring aligns with project organization

Changing the package to io.kontur.disasterninja.notifications.slack improves the modularity and organization of the Slack notification components within the project.


17-17: Extending MessageFormatter enhances code reuse

By extending MessageFormatter, SlackMessageFormatter can leverage shared formatting logic, promoting code reuse and maintainability.


27-29: 🛠️ Refactor suggestion

Add @Override annotation to the format method

The format method appears to override a method from the superclass MessageFormatter. Adding the @Override annotation improves code clarity and allows the compiler to enforce correct overriding.

Apply this diff to add the @Override annotation:

+    @Override
     public String format(EventApiEventDto event, Map<String, Object> urbanPopulationProperties,
                          Map<String, Double> analytics) {

Likely invalid or redundant comment.

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
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Actionable comments posted: 1

📜 Review details

Configuration used: CodeRabbit UI
Review profile: ASSERTIVE

📥 Commits

Files that changed from the base of the PR and between 8830add and 29ea23e.

📒 Files selected for processing (1)
  • src/main/java/io/kontur/disasterninja/notifications/NotificationsProcessor.java (2 hunks)
🧰 Additional context used
🔇 Additional comments (4)
src/main/java/io/kontur/disasterninja/notifications/NotificationsProcessor.java (4)

45-45: Addition of notificationServices field looks good

The new field notificationServices is appropriately added to manage multiple notification services.


50-54: Constructor updated to include notificationServices

The constructor correctly includes the notificationServices parameter to inject the list of notification services.


89-89: Add Error Handling for Notification Processing

Currently, if notificationService.process() throws an exception, it could prevent subsequent services from processing the event and may not update latestUpdatedDate appropriately.

Consider wrapping the notification processing in a try-catch block to handle exceptions per service without affecting others.


90-90: Update latestUpdatedDate After All Services Have Processed

Updating latestUpdatedDate inside the notification service loop may result in advancing the date even if not all services have processed the event. It's better to update it after all services have processed the event.

palina-krukovich and others added 2 commits October 23, 2024 11:09
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
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Actionable comments posted: 3

📜 Review details

Configuration used: CodeRabbit UI
Review profile: ASSERTIVE

📥 Commits

Files that changed from the base of the PR and between 29ea23e and 2a0837c.

📒 Files selected for processing (2)
  • src/main/java/io/kontur/disasterninja/notifications/NotificationService.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/email/EmailSender.java (1 hunks)
🧰 Additional context used
🔇 Additional comments (6)
src/main/java/io/kontur/disasterninja/notifications/email/EmailSender.java (5)

22-26: Add configuration validation for sender and recipients

The email sender and recipients configuration should be validated at component initialization.


28-30: Add constructor parameter validation

The JavaMailSender dependency should be validated in the constructor.


32-47: Enhance error handling and add security measures

The current implementation needs improvements in several areas:

  1. Input validation
  2. Specific exception handling
  3. Monitoring metrics
  4. Rate limiting
  5. Security measures

Additionally, consider implementing batch processing for better performance with large recipient lists.


15-15: 🧹 Nitpick (assertive)

Specify matchIfMissing behavior in @ConditionalOnProperty

For better clarity and predictable behavior, explicitly define what happens when the property is missing.

-@ConditionalOnProperty(value = "notifications.enabled")
+@ConditionalOnProperty(value = "notifications.enabled", matchIfMissing = false)

Likely invalid or redundant comment.


32-47: ⚠️ Potential issue

Implement security measures to prevent abuse

The current implementation lacks critical security measures:

  1. No rate limiting to prevent email flooding
  2. No HTML content sanitization
  3. No maximum limit on recipients

This could potentially be exploited for spam or denial of service attacks.

Let's verify if there are any rate limiting configurations in the project:

src/main/java/io/kontur/disasterninja/notifications/NotificationService.java (1)

13-13: 🧹 Nitpick (assertive)

Consider using a Set for acceptableTypes for better performance

When checking for containment, using a Set instead of a List can improve lookup performance. Although the current list is small, changing acceptableTypes to a Set enhances scalability and readability.

Apply this diff:

-private static final List<String> acceptableTypes = Arrays.asList("FLOOD", "EARTHQUAKE", "CYCLONE", "VOLCANO", "WILDFIRE");
+private static final Set<String> acceptableTypes = new HashSet<>(Arrays.asList("FLOOD", "EARTHQUAKE", "CYCLONE", "VOLCANO", "WILDFIRE"));

Likely invalid or redundant comment.

gabriel-fallen
gabriel-fallen previously approved these changes Oct 23, 2024
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Capital job! 😃

Co-authored-by: Alexander Chichigin <[email protected]>
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Actionable comments posted: 8

📜 Review details

Configuration used: CodeRabbit UI
Review profile: ASSERTIVE

📥 Commits

Files that changed from the base of the PR and between 2a0837c and 1f1bcc7.

📒 Files selected for processing (5)
  • src/main/java/io/kontur/disasterninja/config/MailSenderConfiguration.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/MessageFormatter.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/email/EmailNotificationService.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/email/EmailSender.java (1 hunks)
  • src/main/java/io/kontur/disasterninja/notifications/slack/SlackNotificationService.java (1 hunks)
🔇 Additional comments (7)
src/main/java/io/kontur/disasterninja/notifications/email/EmailNotificationService.java (3)

13-14: Strengthen the conditional property configuration

The existing review comment about making the @ConditionalOnProperty configuration more explicit is still valid.


22-25: Add null validation for dependencies

The existing review comment about adding null checks for dependencies to prevent NullPointerException is still valid.


27-38: Multiple improvements needed in process method

The existing review comment about multiple improvements including input validation, transaction management, and logging placement is still valid.

src/main/java/io/kontur/disasterninja/notifications/email/EmailSender.java (4)

14-15: Specify matchIfMissing behavior in @ConditionalOnProperty

For better clarity and to avoid ambiguity when the property is not defined, explicitly set the matchIfMissing behavior.


22-26: Add configuration validation

The sender and recipients properties should be validated at component initialization to fail fast if the configuration is invalid.


28-30: Add constructor parameter validation

Add null check for the injected JavaMailSender to fail fast if dependency injection fails.


32-35: ⚠️ Potential issue

Remove redundant null check

The null check for javaMailSender is redundant if proper constructor validation is implemented. Additionally, using a generic RuntimeException is not ideal.

-    public void send(EmailDto emailDto) {
-        if (javaMailSender == null) {
-            throw new RuntimeException("Not able to proceed with email notifications because javaMailSender is not initialized.");
-        }
+    public void send(EmailDto emailDto) {

Likely invalid or redundant comment.

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Nice work! 😃

@palina-krukovich palina-krukovich merged commit 694c3d8 into main Oct 24, 2024
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@palina-krukovich palina-krukovich deleted the 19846-implement-basic-email-notifications-in-disaster-ninja-be-for-gg branch October 24, 2024 08:56
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2 participants