be/src/format/parquet/decoder.cpp

Source
// 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 "format/parquet/decoder.h"

#include <cctz/time_zone.h>
#include <gen_cpp/parquet_types.h>

#include "format/parquet/bool_plain_decoder.h"
#include "format/parquet/bool_rle_decoder.h"
#include "format/parquet/byte_array_dict_decoder.h"
#include "format/parquet/byte_array_plain_decoder.h"
#include "format/parquet/byte_stream_split_decoder.h"
#include "format/parquet/delta_bit_pack_decoder.h"
#include "format/parquet/fix_length_dict_decoder.hpp"
#include "format/parquet/fix_length_plain_decoder.h"

namespace doris {
Status Decoder::get_decoder(tparquet::Type::type type, tparquet::Encoding::type encoding,
                            std::unique_ptr<Decoder>& decoder) {
    switch (encoding) {
    case tparquet::Encoding::PLAIN:
        switch (type) {
        case tparquet::Type::BOOLEAN:
            decoder.reset(new BoolPlainDecoder());
            break;
        case tparquet::Type::BYTE_ARRAY:
            decoder.reset(new ByteArrayPlainDecoder());
            break;
        case tparquet::Type::INT32:
        case tparquet::Type::INT64:
        case tparquet::Type::INT96:
        case tparquet::Type::FLOAT:
        case tparquet::Type::DOUBLE:
        case tparquet::Type::FIXED_LEN_BYTE_ARRAY:
            decoder.reset(new FixLengthPlainDecoder());
            break;
        default:
            return Status::InternalError("Unsupported type {}(encoding={}) in parquet decoder",
                                         tparquet::to_string(type), tparquet::to_string(encoding));
        }
        break;
    case tparquet::Encoding::RLE_DICTIONARY:
        switch (type) {
        case tparquet::Type::BOOLEAN:
            return Status::InternalError("Bool type can't has dictionary page");
        case tparquet::Type::BYTE_ARRAY:
            decoder.reset(new ByteArrayDictDecoder());
            break;
        case tparquet::Type::INT32:
            decoder.reset(new FixLengthDictDecoder<tparquet::Type::INT32>());
            break;
        case tparquet::Type::INT64:
            decoder.reset(new FixLengthDictDecoder<tparquet::Type::INT64>());
            break;
        case tparquet::Type::INT96:
            decoder.reset(new FixLengthDictDecoder<tparquet::Type::INT96>());
            break;
        case tparquet::Type::FLOAT:
            decoder.reset(new FixLengthDictDecoder<tparquet::Type::FLOAT>());
            break;
        case tparquet::Type::DOUBLE:
            decoder.reset(new FixLengthDictDecoder<tparquet::Type::DOUBLE>());
            break;
        case tparquet::Type::FIXED_LEN_BYTE_ARRAY:
            decoder.reset(new FixLengthDictDecoder<tparquet::Type::FIXED_LEN_BYTE_ARRAY>());
            break;
        default:
            return Status::InternalError("Unsupported type {}(encoding={}) in parquet decoder",
                                         tparquet::to_string(type), tparquet::to_string(encoding));
        }
        break;
    case tparquet::Encoding::RLE:
        switch (type) {
        case tparquet::Type::BOOLEAN:
            decoder.reset(new BoolRLEDecoder());
            break;
        default:
            return Status::InternalError("Unsupported type {}(encoding={}) in parquet decoder",
                                         tparquet::to_string(type), tparquet::to_string(encoding));
        }
        break;
    case tparquet::Encoding::DELTA_BINARY_PACKED:
        // Supports only INT32 and INT64.
        switch (type) {
        case tparquet::Type::INT32:
            decoder.reset(new DeltaBitPackDecoder<int32_t>());
            break;
        case tparquet::Type::INT64:
            decoder.reset(new DeltaBitPackDecoder<int64_t>());
            break;
        default:
            return Status::InternalError("DELTA_BINARY_PACKED only supports INT32 and INT64");
        }
        break;
    case tparquet::Encoding::DELTA_BYTE_ARRAY:
        switch (type) {
        case tparquet::Type::BYTE_ARRAY:
        case tparquet::Type::FIXED_LEN_BYTE_ARRAY:
            decoder.reset(new DeltaByteArrayDecoder());
            break;
        default:
            return Status::InternalError(
                    "DELTA_BYTE_ARRAY only supports BYTE_ARRAY, FIXED_LEN_BYTE_ARRAY.");
        }
        break;
    case tparquet::Encoding::DELTA_LENGTH_BYTE_ARRAY:
        switch (type) {
        case tparquet::Type::BYTE_ARRAY:
            decoder.reset(new DeltaLengthByteArrayDecoder());
            break;
        default:
            return Status::InternalError("DELTA_LENGTH_BYTE_ARRAY only supports BYTE_ARRAY.");
        }
        break;
    case tparquet::Encoding::BYTE_STREAM_SPLIT:
        switch (type) {
        case tparquet::Type::INT32:
        case tparquet::Type::INT64:
        case tparquet::Type::INT96:
        case tparquet::Type::FLOAT:
        case tparquet::Type::DOUBLE:
        case tparquet::Type::FIXED_LEN_BYTE_ARRAY:
            decoder.reset(new ByteStreamSplitDecoder());
            break;
        default:
            return Status::InternalError("Unsupported type {}(encoding={}) in parquet decoder",
                                         tparquet::to_string(type), tparquet::to_string(encoding));
        }
        break;
    default:
        return Status::InternalError("Unsupported encoding {}(type={}) in parquet decoder",
                                     tparquet::to_string(encoding), tparquet::to_string(type));
    }
    return Status::OK();
}

} // namespace doris

Line	Count	Source
1		// Licensed to the Apache Software Foundation (ASF) under one
2		// or more contributor license agreements. See the NOTICE file
3		// distributed with this work for additional information
4		// regarding copyright ownership. The ASF licenses this file
5		// to you under the Apache License, Version 2.0 (the
6		// "License"); you may not use this file except in compliance
7		// with the License. You may obtain a copy of the License at
8		//
9		// http://www.apache.org/licenses/LICENSE-2.0
10		//
11		// Unless required by applicable law or agreed to in writing,
12		// software distributed under the License is distributed on an
13		// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14		// KIND, either express or implied. See the License for the
15		// specific language governing permissions and limitations
16		// under the License.
17
18		#include "format/parquet/decoder.h"
19
20		#include <cctz/time_zone.h>
21		#include <gen_cpp/parquet_types.h>
22
23		#include "format/parquet/bool_plain_decoder.h"
24		#include "format/parquet/bool_rle_decoder.h"
25		#include "format/parquet/byte_array_dict_decoder.h"
26		#include "format/parquet/byte_array_plain_decoder.h"
27		#include "format/parquet/byte_stream_split_decoder.h"
28		#include "format/parquet/delta_bit_pack_decoder.h"
29		#include "format/parquet/fix_length_dict_decoder.hpp"
30		#include "format/parquet/fix_length_plain_decoder.h"
31
32		namespace doris {
33		Status Decoder::get_decoder(tparquet::Type::type type, tparquet::Encoding::type encoding,
34	80.9k	std::unique_ptr<Decoder>& decoder) {
35	80.9k	switch (encoding) {
36	35.2k	case tparquet::Encoding::PLAIN:
37	35.2k	switch (type) {
38	2.58k	case tparquet::Type::BOOLEAN:
39	2.58k	decoder.reset(new BoolPlainDecoder());
40	2.58k	break;
41	11.2k	case tparquet::Type::BYTE_ARRAY:
42	11.2k	decoder.reset(new ByteArrayPlainDecoder());
43	11.2k	break;
44	10.5k	case tparquet::Type::INT32:
45	15.6k	case tparquet::Type::INT64:
46	15.6k	case tparquet::Type::INT96:
47	16.7k	case tparquet::Type::FLOAT:
48	18.8k	case tparquet::Type::DOUBLE:
49	21.3k	case tparquet::Type::FIXED_LEN_BYTE_ARRAY:
50	21.3k	decoder.reset(new FixLengthPlainDecoder());
51	21.3k	break;
52	0	default:
53	0	return Status::InternalError("Unsupported type {}(encoding={}) in parquet decoder",
54	0	tparquet::to_string(type), tparquet::to_string(encoding));
55	35.2k	}
56	35.2k	break;
57	44.8k	case tparquet::Encoding::RLE_DICTIONARY:
58	44.8k	switch (type) {
59	0	case tparquet::Type::BOOLEAN:
60	0	return Status::InternalError("Bool type can't has dictionary page");
61	13.8k	case tparquet::Type::BYTE_ARRAY:
62	13.8k	decoder.reset(new ByteArrayDictDecoder());
63	13.8k	break;
64	13.4k	case tparquet::Type::INT32:
65	13.4k	decoder.reset(new FixLengthDictDecoder<tparquet::Type::INT32>());
66	13.4k	break;
67	6.22k	case tparquet::Type::INT64:
68	6.22k	decoder.reset(new FixLengthDictDecoder<tparquet::Type::INT64>());
69	6.22k	break;
70	893	case tparquet::Type::INT96:
71	893	decoder.reset(new FixLengthDictDecoder<tparquet::Type::INT96>());
72	893	break;
73	1.64k	case tparquet::Type::FLOAT:
74	1.64k	decoder.reset(new FixLengthDictDecoder<tparquet::Type::FLOAT>());
75	1.64k	break;
76	3.95k	case tparquet::Type::DOUBLE:
77	3.95k	decoder.reset(new FixLengthDictDecoder<tparquet::Type::DOUBLE>());
78	3.95k	break;
79	4.88k	case tparquet::Type::FIXED_LEN_BYTE_ARRAY:
80	4.88k	decoder.reset(new FixLengthDictDecoder<tparquet::Type::FIXED_LEN_BYTE_ARRAY>());
81	4.88k	break;
82	0	default:
83	0	return Status::InternalError("Unsupported type {}(encoding={}) in parquet decoder",
84	0	tparquet::to_string(type), tparquet::to_string(encoding));
85	44.8k	}
86	44.8k	break;
87	44.8k	case tparquet::Encoding::RLE:
88	179	switch (type) {
89	179	case tparquet::Type::BOOLEAN:
90	179	decoder.reset(new BoolRLEDecoder());
91	179	break;
92	0	default:
93	0	return Status::InternalError("Unsupported type {}(encoding={}) in parquet decoder",
94	0	tparquet::to_string(type), tparquet::to_string(encoding));
95	179	}
96	179	break;
97	525	case tparquet::Encoding::DELTA_BINARY_PACKED:
98		// Supports only INT32 and INT64.
99	525	switch (type) {
100	36	case tparquet::Type::INT32:
101	36	decoder.reset(new DeltaBitPackDecoder<int32_t>());
102	36	break;
103	489	case tparquet::Type::INT64:
104	489	decoder.reset(new DeltaBitPackDecoder<int64_t>());
105	489	break;
106	0	default:
107	0	return Status::InternalError("DELTA_BINARY_PACKED only supports INT32 and INT64");
108	525	}
109	525	break;
110	525	case tparquet::Encoding::DELTA_BYTE_ARRAY:
111	90	switch (type) {
112	90	case tparquet::Type::BYTE_ARRAY:
113	90	case tparquet::Type::FIXED_LEN_BYTE_ARRAY:
114	90	decoder.reset(new DeltaByteArrayDecoder());
115	90	break;
116	0	default:
117	0	return Status::InternalError(
118	0	"DELTA_BYTE_ARRAY only supports BYTE_ARRAY, FIXED_LEN_BYTE_ARRAY.");
119	90	}
120	90	break;
121	90	case tparquet::Encoding::DELTA_LENGTH_BYTE_ARRAY:
122	14	switch (type) {
123	14	case tparquet::Type::BYTE_ARRAY:
124	14	decoder.reset(new DeltaLengthByteArrayDecoder());
125	14	break;
126	0	default:
127	0	return Status::InternalError("DELTA_LENGTH_BYTE_ARRAY only supports BYTE_ARRAY.");
128	14	}
129	14	break;
130	14	case tparquet::Encoding::BYTE_STREAM_SPLIT:
131	11	switch (type) {
132	1	case tparquet::Type::INT32:
133	2	case tparquet::Type::INT64:
134	2	case tparquet::Type::INT96:
135	5	case tparquet::Type::FLOAT:
136	8	case tparquet::Type::DOUBLE:
137	11	case tparquet::Type::FIXED_LEN_BYTE_ARRAY:
138	11	decoder.reset(new ByteStreamSplitDecoder());
139	11	break;
140	0	default:
141	0	return Status::InternalError("Unsupported type {}(encoding={}) in parquet decoder",
142	0	tparquet::to_string(type), tparquet::to_string(encoding));
143	11	}
144	11	break;
145	11	default:
146	0	return Status::InternalError("Unsupported encoding {}(type={}) in parquet decoder",
147	0	tparquet::to_string(encoding), tparquet::to_string(type));
148	80.9k	}
149	80.9k	return Status::OK();
150	80.9k	}
151
152		} // namespace doris

Coverage Report

Created: 2026-06-04 07:44