shangxinli commented on code in PR #552:
URL: https://github.com/apache/iceberg-cpp/pull/552#discussion_r2808243891
##########
src/iceberg/data/data_writer.cc:
##########
@@ -19,20 +19,118 @@
#include "iceberg/data/data_writer.h"
+#include "iceberg/file_writer.h"
+#include "iceberg/manifest/manifest_entry.h"
+#include "iceberg/util/macros.h"
+
namespace iceberg {
class DataWriter::Impl {
public:
+ static Result<std::unique_ptr<Impl>> Make(DataWriterOptions options) {
+ WriterOptions writer_options;
+ writer_options.path = options.path;
+ writer_options.schema = options.schema;
+ writer_options.io = options.io;
+ writer_options.properties = WriterProperties::FromMap(options.properties);
+
+ ICEBERG_ASSIGN_OR_RAISE(auto writer,
+ WriterFactoryRegistry::Open(options.format,
writer_options));
+
+ return std::unique_ptr<Impl>(new Impl(std::move(options),
std::move(writer)));
+ }
+
+ Status Write(ArrowArray* data) {
+ ICEBERG_PRECHECK(writer_, "Writer not initialized");
+ return writer_->Write(data);
+ }
+
+ Result<int64_t> Length() const {
+ ICEBERG_PRECHECK(writer_, "Writer not initialized");
+ return writer_->length();
+ }
+
+ Status Close() {
+ ICEBERG_PRECHECK(writer_, "Writer not initialized");
+ if (closed_) {
+ // Idempotent: no-op if already closed
+ return {};
+ }
+ ICEBERG_RETURN_UNEXPECTED(writer_->Close());
+ closed_ = true;
+ return {};
+ }
+
+ Result<FileWriter::WriteResult> Metadata() {
+ ICEBERG_PRECHECK(closed_, "Cannot get metadata before closing the writer");
+
+ ICEBERG_ASSIGN_OR_RAISE(auto metrics, writer_->metrics());
+ ICEBERG_ASSIGN_OR_RAISE(auto length, writer_->length());
+ auto split_offsets = writer_->split_offsets();
+
+ auto data_file = std::make_shared<DataFile>();
+ data_file->content = DataFile::Content::kData;
Review Comment:
Done. Changed to use aggregate initialization for DataFile. Also used range
constructors for the metrics maps...
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