datafusion-datasource 48.0.1

// 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.

use std::sync::Arc;

use object_store::{path::Path, ObjectMeta};

use crate::FileRange;

/// A single file or part of a file that should be read, along with its schema, statistics
pub struct FileMeta {
    /// Path for the file (e.g. URL, filesystem path, etc)
    pub object_meta: ObjectMeta,
    /// An optional file range for a more fine-grained parallel execution
    pub range: Option<FileRange>,
    /// An optional field for user defined per object metadata
    pub extensions: Option<Arc<dyn std::any::Any + Send + Sync>>,
    /// Size hint for the metadata of this file
    pub metadata_size_hint: Option<usize>,
}

impl FileMeta {
    /// The full path to the object
    pub fn location(&self) -> &Path {
        &self.object_meta.location
    }
}

impl From<ObjectMeta> for FileMeta {
    fn from(object_meta: ObjectMeta) -> Self {
        Self {
            object_meta,
            range: None,
            extensions: None,
            metadata_size_hint: None,
        }
    }
}