[ISSUE #6404]🚀Implement DecodeMessageId Command for Message ID Parsing Utility

[WaterWhisperer]

Which Issue(s) This PR Fixes(Closes)

• Fixes [Feature🚀] Implement DecodeMessageId Command for Message ID Parsing Utility #6404

Brief Description

How Did You Test This Change?

Summary by CodeRabbit

• New Features
  • Added decodeMessageId command to decode RocketMQ message IDs and retrieve associated broker information, including IP address, port, and commit log offset.
  • Supports both IPv4 and IPv6 format message IDs with input validation.

[rocketmq-rust-bot]

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ℹ️ Recent review info

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Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between da0bba5 and 2859a9f.

📒 Files selected for processing (3)

• rocketmq-tools/rocketmq-admin/rocketmq-admin-core/src/commands.rs
• rocketmq-tools/rocketmq-admin/rocketmq-admin-core/src/commands/message.rs
• rocketmq-tools/rocketmq-admin/rocketmq-admin-core/src/commands/message/decode_message_id_sub_command.rs

---

Walkthrough

This PR implements the decodeMessageId command in rocketmq-admin-core, enabling parsing of RocketMQ message ID strings to extract embedded broker IP, port, and commit log offset metadata without querying brokers.

Changes

Cohort / File(s)	Summary
Command Registration rocketmq-tools/rocketmq-admin/rocketmq-admin-core/src/commands.rs	Registers the new decodeMessageId command in the static command classification table under the Message category.
Module Wiring rocketmq-tools/rocketmq-admin/rocketmq-admin-core/src/commands/message.rs	Exposes new decode_message_id_sub_command module, imports DecodeMessageIdSubCommand, extends MessageCommands enum with new variant, and wires execution handler.
Implementation rocketmq-tools/rocketmq-admin/rocketmq-admin-core/src/commands/message/decode_message_id_sub_command.rs	Implements DecodeMessageIdSubCommand to accept multiple message IDs, validate hexadecimal format, decode using rocketmq_common::MessageDecoder, and output broker IP, port, commit log offset, and hexadecimal offset with error handling.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~15 minutes

Poem

🐰 A command so keen to decode,
Message IDs shed their hidden load,
IP, port, and offset now clear,
No broker queries needed here! ✨

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	Title clearly summarizes the main change: implementing the DecodeMessageId command for message ID parsing as specified in issue #6404.
Linked Issues check	✅ Passed	Code changes implement all core requirements: DecodeMessageIdSubCommand accepts --messageId/-i flag with multiple values, validates 32/40-char hex strings, decodes IP/port/offset from bytes, and displays formatted output.
Out of Scope Changes check	✅ Passed	All changes are directly scoped to issue #6404: adding the decodeMessageId command module, enum variant, and execution logic with no unrelated modifications.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

---

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 41 lines in your changes missing coverage. Please review.
✅ Project coverage is 41.34%. Comparing base (5f978f3) to head (2859a9f).
⚠️ Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
.../commands/message/decode_message_id_sub_command.rs	0.00%	35 Missing ⚠️
...rocketmq-admin/rocketmq-admin-core/src/commands.rs	0.00%	5 Missing ⚠️
...-admin/rocketmq-admin-core/src/commands/message.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6622      +/-   ##
==========================================
- Coverage   41.36%   41.34%   -0.02%     
==========================================
  Files         964      965       +1     
  Lines      135270   135314      +44     
==========================================
- Hits        55959    55951       -8     
- Misses      79311    79363      +52     

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[rocketmq-rust-bot]

LGTM - All CI checks passed ✅

[mxsm]

LGTM