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use std::sync::Arc;
use url::Url;
use crate::composition::{
with_registry, CompositionContext, DeserializeWithRegistry, ServiceBuilder, REG,
};
use super::BlobService;
/// Constructs a new instance of a [BlobService] from an URI.
///
/// The following schemes are supported by the following services:
/// - `memory://` ([MemoryBlobService])
/// - `grpc+*://` ([GRPCBlobService])
/// - `objectstore+*://` ([ObjectStoreBlobService])
///
/// See their `from_url` methods for more details about their syntax.
pub async fn from_addr(
uri: &str,
) -> Result<Arc<dyn BlobService>, Box<dyn std::error::Error + Send + Sync>> {
let url = Url::parse(uri)
.map_err(|e| crate::Error::StorageError(format!("unable to parse url: {}", e)))?;
let blob_service_config = with_registry(®, || {
<DeserializeWithRegistry<Box<dyn ServiceBuilder<Output = dyn BlobService>>>>::try_from(url)
})?
.0;
let blob_service = blob_service_config
.build("anonymous", &CompositionContext::blank())
.await?;
Ok(blob_service)
}
#[cfg(test)]
mod tests {
use super::from_addr;
use rstest::rstest;
#[rstest]
/// This uses an unsupported scheme.
#[case::unsupported_scheme("http://foo.example/test", false)]
/// This correctly sets the scheme, and doesn't set a path.
#[case::memory_valid("memory://", true)]
/// This sets a memory url host to `foo`
#[case::memory_invalid_host("memory://foo", false)]
/// This sets a memory url path to "/", which is invalid.
#[case::memory_invalid_root_path("memory:///", false)]
/// This sets a memory url path to "/foo", which is invalid.
#[case::memory_invalid_root_path_foo("memory:///foo", false)]
/// Correct scheme to connect to a unix socket.
#[case::grpc_valid_unix_socket("grpc+unix:///path/to/somewhere", true)]
/// Correct scheme for unix socket, but setting a host too, which is invalid.
#[case::grpc_invalid_unix_socket_and_host("grpc+unix://host.example/path/to/somewhere", false)]
/// Correct scheme to connect to localhost, with port 12345
#[case::grpc_valid_ipv6_localhost_port_12345("grpc+http://[::1]:12345", true)]
/// Correct scheme to connect to localhost over http, without specifying a port.
#[case::grpc_valid_http_host_without_port("grpc+http://localhost", true)]
/// Correct scheme to connect to localhost over http, without specifying a port.
#[case::grpc_valid_https_host_without_port("grpc+https://localhost", true)]
/// Correct scheme to connect to localhost over http, but with additional path, which is invalid.
#[case::grpc_invalid_has_path("grpc+http://localhost/some-path", false)]
/// An example for object store (InMemory)
#[case::objectstore_valid_memory("objectstore+memory:///", true)]
/// An example for object store (LocalFileSystem)
#[case::objectstore_valid_file("objectstore+file:///foo/bar", true)]
// An example for object store (HTTP / WebDAV)
#[case::objectstore_valid_http_url("objectstore+https://localhost:8080/some-path", true)]
/// An example for object store (S3)
#[cfg_attr(
feature = "cloud",
case::objectstore_valid_s3_url("objectstore+s3://bucket/path", true)
)]
/// An example for object store (GCS)
#[cfg_attr(
feature = "cloud",
case::objectstore_valid_gcs_url("objectstore+gs://bucket/path", true)
)]
#[tokio::test]
async fn test_from_addr_tokio(#[case] uri_str: &str, #[case] exp_succeed: bool) {
if exp_succeed {
from_addr(uri_str).await.expect("should succeed");
} else {
assert!(from_addr(uri_str).await.is_err(), "should fail");
}
}
}
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