feat(io): Implement base IO Module (#51)

crates/paimon/Cargo.toml

@@ -26,8 +26,19 @@ edition.workspace = true
 license.workspace = true
 version.workspace = true
 
+[features]
+default = ["storage-memory", "storage-fs"]
+storage-all = ["storage-memory", "storage-fs"]
+
+storage-memory = ["opendal/services-memory"]
+storage-fs = ["opendal/services-fs"]
+
 [dependencies]
+url = "2.5.2"
+async-trait = "0.1.81"
+bytes = "1.7.1"
 bitflags = "2.6.0"
+tokio = { version = "1.39.2", features = ["macros"] }
 chrono = { version = "0.4.38", features = ["serde"] }
 serde = { version = "1", features = ["derive"] }
 serde_bytes = "0.11.15"

crates/paimon/src/error.rs

@@ -42,4 +42,24 @@ pub enum Error {
         message: String,
         source: opendal::Error,
     },
+    #[snafu(
+        visibility(pub(crate)),
+        display("Paimon hitting unsupported io error {}", message)
+    )]
+    IoUnsupported { message: String },
+    #[snafu(
+        visibility(pub(crate)),
+        display("Paimon hitting invalid config: {}", message)
+    )]
+    ConfigInvalid { message: String },
+}
+
+impl From<opendal::Error> for Error {
+    fn from(source: opendal::Error) -> Self {
+        // TODO: Simple use IoUnexpected for now
+        Error::IoUnexpected {
+            message: "IO operation failed on underlying storage".to_string(),
+            source,
+        }
+    }
 }