CalvinKirs opened a new pull request, #64853:
URL: https://github.com/apache/doris/pull/64853
### What problem does this PR solve?
Related PR: #xxx
Problem Summary:
This is an additive slice of the `fe-filesystem` SPI migration. It does
**not** touch the
~102 legacy `datasource.property.storage.StorageProperties` consumers and
does **not** delete
any legacy class — it only lays down geography that later consumer-migration
PRs depend on:
1. **HTTP filesystem module** (`fe-filesystem-http`): typed
`HttpFileSystemProperties`
(validates `http://` / `https://` / `hf://` URIs, extracts
`http.header.*`) and
`HttpFileSystemProvider` registered via SPI. HTTP has no real FileSystem
— reads happen
via the `http()` TVF (FE `HttpUtils` / BE `TFileType.FILE_HTTP`) — so
`create()` throws and
capability gating is used instead.
2. **Capability framework**: `FileSystemCapability` enum
(READ/WRITE/LIST/DELETE/MVCC),
provider-level `FileSystemProvider.capabilities()` as the source of
truth, and a
`FileSystemFactory.capabilities(Map)` consumer shortcut (plugin-manager
path + ServiceLoader
fallback). Lets callers gate operations (e.g. HTTP = READ only) without
calling `create()`.
3. **URI validation on the properties model**:
`FileSystemProperties.validateAndNormalizeUri()` /
`validateAndGetUri()` defaults. This is pure config logic (no I/O) and
lives on the properties
model on purpose — many callers validate a URI before, or without ever,
creating a FileSystem.
### Release note
None
### Check List (For Author)
- Test
- [x] Unit Test (`fe-filesystem-http` module tests +
`FileSystemFactoryCapabilitiesTest` in fe-core)
- Behavior changed:
- [x] No. Additive SPI scaffolding; no existing path is rerouted.
- Does this need documentation?
- [x] No.
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