ZENOTME commented on code in PR #176:
URL: https://github.com/apache/iceberg-rust/pull/176#discussion_r1475621034


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crates/iceberg/src/writer/file_writer/location_generator.rs:
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@@ -0,0 +1,251 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+//! The module contains the location generator for file writer.
+
+use std::str::FromStr;
+use std::sync::atomic::AtomicUsize;
+use uuid::Uuid;
+
+use crate::spec::{DataFileFormat, TableMetadata};
+use crate::{Error, ErrorKind, Result};
+
+/// LocationGenerator will generate a file location for the writer.
+pub trait LocationGenerator: Send + Sync + 'static {
+    /// Generate a related file location for the writer.

Review Comment:
   LGTM. How about keeping the same interface as `LocationProvider`? We can 
combine the `DataFileFormat` outside to keep the interface of 
`LocationProvider` simple. 



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