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Refactor engine status #600

Merged
merged 2 commits into from
Oct 2, 2024
Merged

Refactor engine status #600

merged 2 commits into from
Oct 2, 2024

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janezpodhostnik
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@janezpodhostnik janezpodhostnik commented Sep 30, 2024

Description

small refactor to make the engine a bit simpler to use


For contributor use:

  • Targeted PR against master branch
  • Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
  • Code follows the standards mentioned here.
  • Updated relevant documentation
  • Re-reviewed Files changed in the Github PR explorer
  • Added appropriate labels

Summary by CodeRabbit

  • New Features

    • Simplified method names for engine status, enhancing clarity.
    • Streamlined event ingestion logic with improved logging for better monitoring.
  • Bug Fixes

    • Enhanced handling of heartbeat events to ensure accurate cadence height updates.
  • Refactor

    • Restructured Engine type to embed EngineStatus directly, simplifying initialization and state management.
  • Documentation

    • Updated method signatures to reflect changes in the engine's status management.

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coderabbitai bot commented Sep 30, 2024

Walkthrough

The changes across multiple files involve restructuring the Engine and EngineStatus components within the codebase. Key modifications include renaming methods for clarity, embedding EngineStatus directly within Engine structs, and removing certain methods that were previously used to access status information. The updates simplify the initialization and management of engine states while enhancing logging for event processing.

Changes

File Path Change Summary
models/engine.go Renamed methods IsReady, IsStopped, and IsDone to Ready, Stopped, and Done. Method signatures unchanged.
services/ingestion/engine.go Embedded *models.EngineStatus directly in Engine. Removed Ready and Done methods. Updated processEvents for better heartbeat event handling and enhanced logging in event processing methods.
services/traces/engine.go Embedded EngineStatus directly in Engine. Updated Run and Stop methods to call MarkReady() and MarkStopped() directly. Removed Done() and Ready() methods.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant Engine
    participant EngineStatus

    Client->>Engine: Start Engine
    Engine->>EngineStatus: MarkReady()
    Engine->>Client: Engine is Ready
    Client->>Engine: Stop Engine
    Engine->>EngineStatus: MarkStopped()
    Engine->>Client: Engine is Stopped
Loading

Poem

🐰 In the code where engines hum,
Changes made, oh what fun!
Methods renamed, clearer now,
Status embedded, take a bow.
Logging brightens, events in flow,
Hopping forward, watch us go! 🌟


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Actionable comments posted: 1

🧹 Outside diff range and nitpick comments (1)
services/traces/engine.go (1)

61-68: Approve Run method changes and address TODO comment

The changes in the Run method are consistent with the previous modifications, simplifying the code by directly calling MarkReady() on the Engine instance. This improves code readability and maintains the PR's objective of simplifying the engine's usage.

However, there's a TODO comment that needs attention:

// TODO: use the context to stop the engine.

Would you like me to provide a code snippet demonstrating how to use the context to stop the engine, or should I create a GitHub issue to track this task?

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between e89b056 and 5d7352f.

📒 Files selected for processing (3)
  • models/engine.go (1 hunks)
  • services/ingestion/engine.go (3 hunks)
  • services/traces/engine.go (4 hunks)
🔇 Additional comments (10)
models/engine.go (4)

33-43: Summary of EngineStatus method renaming

The renaming of IsReady, IsStopped, and IsDone to Ready, Stopped, and Done respectively improves the overall consistency and simplicity of the EngineStatus API. These changes align well with the PR objectives of simplifying the engine usage within the codebase.

While the functional behavior remains unchanged, it's important to ensure that all references to these methods throughout the codebase are updated accordingly. The impact should be minimal, mainly affecting method calls and potentially improving code readability.

To get an overview of the usage of these methods across the codebase and ensure all references have been updated, please run the following script:

#!/bin/bash
# Description: Overview of EngineStatus method usage

# Test: Search for all method calls on EngineStatus. 
# Expect: Results showing updated usage of Ready, Stopped, and Done, and no usage of old method names.
rg --type go -e 'EngineStatus.*Ready\(' -e 'EngineStatus.*Stopped\(' -e 'EngineStatus.*Done\(' -e 'EngineStatus.*IsReady\(' -e 'EngineStatus.*IsStopped\(' -e 'EngineStatus.*IsDone\('

Please review the results to confirm that all method calls have been updated consistently across the codebase.


41-43: Approve renaming of IsDone to Done

The renaming of IsDone to Done improves consistency with the Engine interface and simplifies the method name. This change enhances the overall clarity of the codebase.

To ensure all references to this method have been updated, please run the following script:

#!/bin/bash
# Description: Check for any remaining references to the old method name 'IsDone'

# Test: Search for 'IsDone' method calls on EngineStatus. Expect: No results.
rg --type go 'EngineStatus.*IsDone\('

# Test: Search for 'Done' method calls on EngineStatus. Expect: Results showing updated usage.
rg --type go 'EngineStatus.*Done\('

33-35: Approve renaming of IsReady to Ready

The renaming of IsReady to Ready improves consistency with the Engine interface and simplifies the method name. This change enhances the overall clarity of the codebase.

To ensure all references to this method have been updated, please run the following script:

✅ Verification successful

Verified renaming of IsReady to Ready

All references to IsReady have been successfully updated to Ready. No residual instances of IsReady were found, ensuring consistency and correctness in the codebase.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for any remaining references to the old method name 'IsReady'

# Test: Search for 'IsReady' method calls on EngineStatus. Expect: No results.
rg --type go 'EngineStatus.*IsReady\('

# Test: Search for 'Ready' method calls on EngineStatus. Expect: Results showing updated usage.
rg --type go 'EngineStatus.*Ready\('

Length of output: 199


37-39: Approve renaming of IsStopped to Stopped with a minor consideration

The renaming of IsStopped to Stopped simplifies the method name. However, it's worth noting that the new name might be slightly less clear in indicating a boolean state.

To ensure all references to this method have been updated and to consider the clarity of usage, please run the following script:

Please review the usage of Stopped in context to ensure it remains clear and unambiguous throughout the codebase.

✅ Verification successful

Renaming of IsStopped to Stopped verified successfully

All references to IsStopped have been removed, and the Stopped method is consistently used throughout the codebase.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for any remaining references to the old method name 'IsStopped' and review usage of 'Stopped'

# Test: Search for 'IsStopped' method calls on EngineStatus. Expect: No results.
rg --type go 'EngineStatus.*IsStopped\('

# Test: Search for 'Stopped' method calls on EngineStatus. Expect: Results showing updated usage.
rg --type go -C 2 'EngineStatus.*Stopped\('

Length of output: 546

services/traces/engine.go (4)

30-31: Approve embedding EngineStatus in Engine struct

This change simplifies the Engine struct by directly embedding EngineStatus instead of using a pointer. This modification aligns well with the PR objective of simplifying the engine's usage. It eliminates the need for pointer dereferencing when accessing status methods, leading to cleaner and more straightforward code.


50-51: Approve direct initialization of EngineStatus

This change is consistent with the modification in the Engine struct definition. It simplifies the initialization process by directly initializing EngineStatus within the Engine struct, eliminating the need for a separate status allocation. This approach leads to more concise and easier-to-understand code.


155-155: Approve Stop method simplification

The change in the Stop method, calling MarkStopped() directly on the Engine instance, is consistent with the previous modifications. This simplification removes unnecessary pointer dereferencing, making the code more straightforward and easier to understand.

Note: The AI summary mentioned the removal of Done() and Ready() methods. While not visible in the provided code snippet, this removal aligns with the overall simplification approach of the PR.


Line range hint 1-157: Summary of changes and suggestions for next steps

The changes in this file consistently simplify the Engine struct and its methods, aligning well with the PR objective of enhancing the engine's usability. The modifications improve code readability and maintain a consistent approach throughout the file.

Next steps:

  1. Address the TODO comment in the Run method regarding the use of context to stop the engine.
  2. Ensure that the removal of Done() and Ready() methods (mentioned in the AI summary but not visible in the provided code) doesn't negatively impact any other parts of the codebase that might have been using these methods.
  3. Consider adding or updating unit tests to cover the modified behavior of the Engine struct and its methods.

Overall, these changes represent a positive step towards a more streamlined and maintainable codebase.

services/ingestion/engine.go (2)

34-35: Review the embedding of EngineStatus as a pointer

Embedding *models.EngineStatus as a pointer in the Engine struct allows methods with pointer receivers from EngineStatus to be promoted to Engine. Ensure that this behavior is intentional and that EngineStatus is properly initialized to avoid potential nil pointer dereferences. If method promotion of pointer receivers is not required, consider embedding EngineStatus by value (models.EngineStatus) for safer access.


64-65: Initialization of EngineStatus is appropriate

The EngineStatus is correctly initialized using models.NewEngineStatus(), ensuring that the embedded status is properly set up for the Engine.

@@ -113,7 +104,7 @@ func (e *Engine) Run(ctx context.Context) error {

e.log.Info().Uint64("start-cadence-height", latestCadence).Msg("starting ingestion")

e.status.MarkReady()
e.MarkReady()
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💡 Codebase verification

Update Required: Reference to removed engine.Ready() method found in bootstrap/bootstrap.go. Please update this reference to prevent potential runtime errors.

  • bootstrap/bootstrap.go: <-engine.Ready()
🔗 Analysis chain

Ensure all references to removed Ready() and Done() methods are updated

Since the Ready() and Done() methods have been removed from the Engine struct, please verify that any external code or components that previously relied on these methods have been updated accordingly to prevent potential runtime errors.

Run the following script to check for any remaining references to the removed methods:

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Search for references to the removed `Ready()` and `Done()` methods in the codebase.

# Test: Find any usage of `Ready()` method on `Engine` instances.
# Expect: No matches if all references have been updated.
rg --type go '\.Ready\(\)' --context 5

# Test: Find any usage of `Done()` method on `Engine` instances.
# Expect: No matches if all references have been updated.
rg --type go '\.Done\(\)' --context 5

Length of output: 2877

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@m-Peter m-Peter left a comment

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LGTM!

@janezpodhostnik janezpodhostnik merged commit 4798d65 into main Oct 2, 2024
2 checks passed
@janezpodhostnik janezpodhostnik deleted the janezp/refactor-engine branch October 2, 2024 14:01
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