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Move selection of queue type to a dictionary #335

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merged 5 commits into from
Sep 28, 2024
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@jan-janssen jan-janssen commented Sep 28, 2024

Summary by CodeRabbit

  • New Features

    • Introduced a mapping for queue types to their corresponding class and module names for easier configuration.
    • Enhanced error handling by providing a list of supported queue types when an invalid type is specified.
  • Bug Fixes

    • Simplified initialization logic for commands, ensuring consistent behavior across queue types.
    • Improved method flexibility by allowing None as a return type in several functions.

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📥 Commits

Files that changed from the base of the PR and between 9a9f84f and 88c8c73.

Walkthrough

The changes introduce a new dictionary, queue_type_dict, in pysqa/utils/basic.py, which maps queue types to their respective class and module names. This replaces conditional statements that previously handled queue type resolution. The implementation checks for the existence of the queue_type in the dictionary and raises a ValueError if not found, listing supported types. The initialization of the _commands attribute is also simplified using the retrieved names, while maintaining the existing behavior for the "REMOTE" queue type. Additionally, method signatures have been updated to allow None as a return type for several functions.

Changes

Files Change Summary
pysqa/utils/basic.py Introduced queue_type_dict for mapping queue types to class/module names, replacing conditionals. Simplified _commands initialization and added error handling for unsupported queue types. Updated method signatures to allow None as a return type for several functions.

Poem

In the code where bunnies play,
A new map guides the way.
No more ifs, just a clear path,
Queue types dance, avoiding wrath.
With a hop and a skip, we cheer,
For cleaner code is finally here! 🐇✨


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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (2)
pysqa/utils/basic.py (2)

17-50: LGTM! Consider using an Enum for queue types.

The introduction of queue_type_dict is a good improvement, making the code more maintainable and easier to extend. It provides a clear mapping between queue types and their corresponding class and module names.

Consider using an Enum for the queue types to improve type safety and prevent typos. For example:

from enum import Enum, auto

class QueueType(Enum):
    SGE = auto()
    TORQUE = auto()
    SLURM = auto()
    LSF = auto()
    MOAB = auto()
    GENT = auto()
    REMOTE = auto()
    FLUX = auto()

queue_type_dict = {
    QueueType.SGE: {
        "class_name": "SunGridEngineCommands",
        "module_name": "pysqa.wrapper.sge",
    },
    # ... (rest of the dictionary)
}

This change would require updating the dictionary usage elsewhere in the code, but it would provide better type checking and autocomplete support.


79-87: LGTM! Minor optimization suggested.

The usage of queue_type_dict is a good improvement over the previous conditional statements. It makes the code more maintainable and provides a clear error message with supported queue types.

Consider a minor optimization based on the static analysis hint:

-if self._config["queue_type"] in queue_type_dict.keys():
+if self._config["queue_type"] in queue_type_dict:
     class_name = queue_type_dict[self._config["queue_type"]]["class_name"]
     module_name = queue_type_dict[self._config["queue_type"]]["module_name"]
 else:
     raise ValueError(
         "The queue_type "
         + self._config["queue_type"]
         + " is not found in the list of supported queue types "
-        + str(list(queue_type_dict.keys()))
+        + str(list(queue_type_dict))
     )

This change improves performance slightly by avoiding the creation of a dict_keys object.

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🪛 Ruff

79-79: Use key in dict instead of key in dict.keys()

Remove .keys()

(SIM118)

📜 Review details

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Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between 3e29a93 and 94ef6d9.

📒 Files selected for processing (1)
  • pysqa/utils/basic.py (2 hunks)
🧰 Additional context used
🪛 Ruff
pysqa/utils/basic.py

79-79: Use key in dict instead of key in dict.keys()

Remove .keys()

(SIM118)

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Actionable comments posted: 1

🧹 Outside diff range and nitpick comments (1)
pysqa/utils/basic.py (1)

54-77: Great improvement to the get_queue_commands function!

The updated implementation leverages the new queue_type_dict, making it more concise and easier to maintain. It properly handles unsupported queue types by raising a ValueError with a helpful message. The function now correctly returns None for the "REMOTE" queue type, consistent with the dictionary definition.

Consider using a list comprehension to create the list of supported queue types in the error message:

-            + str(list(queue_type_dict.keys()))
+            + ", ".join(queue_type_dict.keys())

This change would make the error message more readable by presenting the queue types as a comma-separated list instead of a Python list representation.

🧰 Tools
🪛 Ruff

64-64: Use key in dict instead of key in dict.keys()

Remove .keys()

(SIM118)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between 94ef6d9 and 9a9f84f.

📒 Files selected for processing (1)
  • pysqa/utils/basic.py (6 hunks)
🧰 Additional context used
🪛 Ruff
pysqa/utils/basic.py

64-64: Use key in dict instead of key in dict.keys()

Remove .keys()

(SIM118)

🔇 Additional comments (3)
pysqa/utils/basic.py (3)

18-51: Excellent refactoring with the introduction of queue_type_dict!

This change significantly improves code organization and maintainability. By centralizing the queue type information in a dictionary, it becomes much easier to add or modify queue types in the future. The structure is consistent and easy to understand, which enhances readability.


185-185: Excellent improvements to method signatures!

The updates to method signatures, using Union[type, None] instead of just the type, significantly improve type hinting. This change makes the code more robust and easier to understand, especially for methods that may return None in certain cases. The more specific return type annotation for check_queue_parameters provides better information for static type checkers and developers.

These changes are consistent with Python typing best practices and will help catch potential type-related issues earlier in the development process.

Also applies to: 259-259, 306-306, 382-389


Line range hint 1-768: Overall excellent refactoring and improvements!

This pull request introduces several valuable changes:

  1. The introduction of queue_type_dict significantly improves code organization and maintainability.
  2. The get_queue_commands function has been refactored to use the new dictionary, making it more concise and robust.
  3. Method signatures have been updated with improved type hinting, enhancing code clarity and catching potential issues earlier.

These changes collectively make the code more maintainable, easier to understand, and less prone to errors. Great job on this refactoring effort!

🧰 Tools
🪛 Ruff

64-64: Use key in dict instead of key in dict.keys()

Remove .keys()

(SIM118)

Returns:
SchedulerCommands: queuing system commands class instance
"""
if queue_type in queue_type_dict.keys():
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🛠️ Refactor suggestion

Minor optimization suggestion

Consider simplifying the condition in the if statement:

-    if queue_type in queue_type_dict.keys():
+    if queue_type in queue_type_dict:

This change slightly improves performance and aligns with Python best practices. It's a minor optimization, but it makes the code more idiomatic.

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
if queue_type in queue_type_dict.keys():
if queue_type in queue_type_dict:
🧰 Tools
🪛 Ruff

64-64: Use key in dict instead of key in dict.keys()

Remove .keys()

(SIM118)

@jan-janssen jan-janssen merged commit 3b454dc into main Sep 28, 2024
17 of 18 checks passed
@jan-janssen jan-janssen deleted the queue_type_dict branch September 28, 2024 09:08
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