import quincy 17.2.0

[ceph.git] / ceph / src / arrow / cpp / src / parquet / column_scanner.cc

diff --git a/ceph/src/arrow/cpp/src/parquet/column_scanner.cc b/ceph/src/arrow/cpp/src/parquet/column_scanner.cc
new file mode 100644 (file)
index 0000000..9ab1663
--- /dev/null
+++ b/ceph/src/arrow/cpp/src/parquet/column_scanner.cc
@@ -0,0 +1,91 @@
+// 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.
+
+#include "parquet/column_scanner.h"
+
+#include <cstdint>
+#include <memory>
+
+#include "parquet/column_reader.h"
+
+using arrow::MemoryPool;
+
+namespace parquet {
+
+std::shared_ptr<Scanner> Scanner::Make(std::shared_ptr<ColumnReader> col_reader,
+                                       int64_t batch_size, MemoryPool* pool) {
+  switch (col_reader->type()) {
+    case Type::BOOLEAN:
+      return std::make_shared<BoolScanner>(std::move(col_reader), batch_size, pool);
+    case Type::INT32:
+      return std::make_shared<Int32Scanner>(std::move(col_reader), batch_size, pool);
+    case Type::INT64:
+      return std::make_shared<Int64Scanner>(std::move(col_reader), batch_size, pool);
+    case Type::INT96:
+      return std::make_shared<Int96Scanner>(std::move(col_reader), batch_size, pool);
+    case Type::FLOAT:
+      return std::make_shared<FloatScanner>(std::move(col_reader), batch_size, pool);
+    case Type::DOUBLE:
+      return std::make_shared<DoubleScanner>(std::move(col_reader), batch_size, pool);
+    case Type::BYTE_ARRAY:
+      return std::make_shared<ByteArrayScanner>(std::move(col_reader), batch_size, pool);
+    case Type::FIXED_LEN_BYTE_ARRAY:
+      return std::make_shared<FixedLenByteArrayScanner>(std::move(col_reader), batch_size,
+                                                        pool);
+    default:
+      ParquetException::NYI("type reader not implemented");
+  }
+  // Unreachable code, but suppress compiler warning
+  return std::shared_ptr<Scanner>(nullptr);
+}
+
+int64_t ScanAllValues(int32_t batch_size, int16_t* def_levels, int16_t* rep_levels,
+                      uint8_t* values, int64_t* values_buffered,
+                      parquet::ColumnReader* reader) {
+  switch (reader->type()) {
+    case parquet::Type::BOOLEAN:
+      return ScanAll<parquet::BoolReader>(batch_size, def_levels, rep_levels, values,
+                                          values_buffered, reader);
+    case parquet::Type::INT32:
+      return ScanAll<parquet::Int32Reader>(batch_size, def_levels, rep_levels, values,
+                                           values_buffered, reader);
+    case parquet::Type::INT64:
+      return ScanAll<parquet::Int64Reader>(batch_size, def_levels, rep_levels, values,
+                                           values_buffered, reader);
+    case parquet::Type::INT96:
+      return ScanAll<parquet::Int96Reader>(batch_size, def_levels, rep_levels, values,
+                                           values_buffered, reader);
+    case parquet::Type::FLOAT:
+      return ScanAll<parquet::FloatReader>(batch_size, def_levels, rep_levels, values,
+                                           values_buffered, reader);
+    case parquet::Type::DOUBLE:
+      return ScanAll<parquet::DoubleReader>(batch_size, def_levels, rep_levels, values,
+                                            values_buffered, reader);
+    case parquet::Type::BYTE_ARRAY:
+      return ScanAll<parquet::ByteArrayReader>(batch_size, def_levels, rep_levels, values,
+                                               values_buffered, reader);
+    case parquet::Type::FIXED_LEN_BYTE_ARRAY:
+      return ScanAll<parquet::FixedLenByteArrayReader>(batch_size, def_levels, rep_levels,
+                                                       values, values_buffered, reader);
+    default:
+      parquet::ParquetException::NYI("type reader not implemented");
+  }
+  // Unreachable code, but suppress compiler warning
+  return 0;
+}
+
+}  // namespace parquet