CTTY commented on code in PR #1511: URL: https://github.com/apache/iceberg-rust/pull/1511#discussion_r2214402663
########## crates/integrations/datafusion/src/physical_plan/write.rs: ########## @@ -0,0 +1,257 @@ +// 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::any::Any; +use std::fmt::{Debug, Formatter}; +use std::str::FromStr; +use std::sync::Arc; + +use datafusion::arrow::array::{ArrayRef, RecordBatch, StringArray, UInt64Array}; +use datafusion::arrow::datatypes::{ + DataType, Field, Schema as ArrowSchema, SchemaRef as ArrowSchemaRef, +}; +use datafusion::common::Result as DFResult; +use datafusion::error::DataFusionError; +use datafusion::execution::{SendableRecordBatchStream, TaskContext}; +use datafusion::physical_expr::EquivalenceProperties; +use datafusion::physical_plan::stream::RecordBatchStreamAdapter; +use datafusion::physical_plan::{ + DisplayAs, DisplayFormatType, ExecutionPlan, ExecutionPlanProperties, PlanProperties, + execute_input_stream, +}; +use futures::StreamExt; +use iceberg::arrow::schema_to_arrow_schema; +use iceberg::spec::{ + DataFileFormat, FormatVersion, PROPERTY_DEFAULT_FILE_FORMAT, + PROPERTY_DEFAULT_FILE_FORMAT_DEFAULT, serialize_data_file_to_json, +}; +use iceberg::table::Table; +use iceberg::writer::base_writer::data_file_writer::DataFileWriterBuilder; +use iceberg::writer::file_writer::ParquetWriterBuilder; +use iceberg::writer::file_writer::location_generator::{ + DefaultFileNameGenerator, DefaultLocationGenerator, +}; +use iceberg::writer::{CurrentFileStatus, IcebergWriter, IcebergWriterBuilder}; +use iceberg::{Error, ErrorKind}; +use parquet::file::properties::WriterProperties; +use uuid::Uuid; + +use crate::to_datafusion_error; + +pub(crate) struct IcebergWriteExec { + table: Table, + input: Arc<dyn ExecutionPlan>, + result_schema: ArrowSchemaRef, + plan_properties: PlanProperties, +} + +impl IcebergWriteExec { + pub fn new(table: Table, input: Arc<dyn ExecutionPlan>, schema: ArrowSchemaRef) -> Self { + let plan_properties = Self::compute_properties(&input, schema.clone()); + + Self { + table, + input, + result_schema: Self::make_result_schema(), + plan_properties, + } + } + + fn compute_properties( + input: &Arc<dyn ExecutionPlan>, + schema: ArrowSchemaRef, + ) -> PlanProperties { + PlanProperties::new( + EquivalenceProperties::new(schema), + input.output_partitioning().clone(), + input.pipeline_behavior(), + input.boundedness(), + ) + } + + // Create a record batch with count and serialized data files + fn make_result_batch(count: u64, data_files: Vec<String>) -> DFResult<RecordBatch> { + let count_array = Arc::new(UInt64Array::from(vec![count])) as ArrayRef; + let files_array = Arc::new(StringArray::from(data_files)) as ArrayRef; + + RecordBatch::try_from_iter_with_nullable(vec![ + ("count", count_array, false), + ("data_files", files_array, false), + ]) + .map_err(|e| { + DataFusionError::ArrowError(e, Some("Failed to make result batch".to_string())) + }) + } + + fn make_result_schema() -> ArrowSchemaRef { + // Define a schema. + Arc::new(ArrowSchema::new(vec![ + Field::new("count", DataType::UInt64, false), + Field::new("data_files", DataType::Utf8, false), + ])) + } +} + +impl Debug for IcebergWriteExec { + fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result { + write!(f, "IcebergWriteExec") + } +} + +impl DisplayAs for IcebergWriteExec { + fn fmt_as(&self, t: DisplayFormatType, f: &mut Formatter) -> std::fmt::Result { + match t { + DisplayFormatType::Default => { + write!(f, "IcebergWriteExec: table={}", self.table.identifier()) + } + DisplayFormatType::Verbose => { + write!( + f, + "IcebergWriteExec: table={}, result_schema={:?}", + self.table.identifier(), + self.result_schema + ) + } + DisplayFormatType::TreeRender => { + write!(f, "IcebergWriteExec: table={}", self.table.identifier()) + } + } + } +} + +impl ExecutionPlan for IcebergWriteExec { + fn name(&self) -> &str { + "IcebergWriteExec" + } + + fn as_any(&self) -> &dyn Any { + self + } + + fn properties(&self) -> &PlanProperties { + &self.plan_properties + } + + fn children(&self) -> Vec<&Arc<dyn ExecutionPlan>> { + vec![] Review Comment: Implemented this and `with_new_children` -- This is an automated message from the Apache Git Service. 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