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API for snapshot support to be used by stores

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// Copyright 2015-2024 Nstream, inc.
//
// Licensed 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.

package nstream.persist.store.snapshot;

public final class SnapshotFiles {

  private SnapshotFiles() { }

  /**
   * Determine of a filename from a RocksDB checkpoint is a data file or a metadata file.
   * @param name The filename.
   * @return Whether the file is a data file.
   */
  public static boolean isDataFile(String name) {
    if (name == null) {
      throw new IllegalArgumentException("File name must be non-null.");
    }
    return name.endsWith(".sst");
  }

}