Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 1 | // Protocol Buffers - Google's data interchange format |
| 2 | // Copyright 2008 Google Inc. All rights reserved. |
| 3 | // https://developers.google.com/protocol-buffers/ |
| 4 | // |
| 5 | // Redistribution and use in source and binary forms, with or without |
| 6 | // modification, are permitted provided that the following conditions are |
| 7 | // met: |
| 8 | // |
| 9 | // * Redistributions of source code must retain the above copyright |
| 10 | // notice, this list of conditions and the following disclaimer. |
| 11 | // * Redistributions in binary form must reproduce the above |
| 12 | // copyright notice, this list of conditions and the following disclaimer |
| 13 | // in the documentation and/or other materials provided with the |
| 14 | // distribution. |
| 15 | // * Neither the name of Google Inc. nor the names of its |
| 16 | // contributors may be used to endorse or promote products derived from |
| 17 | // this software without specific prior written permission. |
| 18 | // |
| 19 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 20 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 21 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 22 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 23 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 24 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 25 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 26 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 27 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 28 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 29 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | |
| 31 | #include <google/protobuf/util/internal/protostream_objectsource.h> |
| 32 | |
| 33 | #include <utility> |
| 34 | |
| 35 | #include <google/protobuf/stubs/casts.h> |
Feng Xiao | eee38b0 | 2015-08-22 18:25:48 -0700 | [diff] [blame] | 36 | #include <google/protobuf/stubs/logging.h> |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 37 | #include <google/protobuf/stubs/common.h> |
| 38 | #include <google/protobuf/stubs/stringprintf.h> |
| 39 | #include <google/protobuf/stubs/time.h> |
| 40 | #include <google/protobuf/io/coded_stream.h> |
| 41 | #include <google/protobuf/io/zero_copy_stream_impl.h> |
| 42 | #include <google/protobuf/descriptor.h> |
| 43 | #include <google/protobuf/wire_format.h> |
| 44 | #include <google/protobuf/wire_format_lite.h> |
| 45 | #include <google/protobuf/util/internal/field_mask_utility.h> |
| 46 | #include <google/protobuf/util/internal/constants.h> |
| 47 | #include <google/protobuf/util/internal/utility.h> |
| 48 | #include <google/protobuf/stubs/strutil.h> |
| 49 | #include <google/protobuf/stubs/map_util.h> |
| 50 | #include <google/protobuf/stubs/status_macros.h> |
| 51 | |
| 52 | |
| 53 | namespace google { |
| 54 | namespace protobuf { |
| 55 | namespace util { |
| 56 | using util::Status; |
| 57 | using util::StatusOr; |
| 58 | namespace error { |
| 59 | using util::error::Code; |
| 60 | using util::error::INTERNAL; |
| 61 | } |
| 62 | namespace converter { |
| 63 | |
| 64 | using google::protobuf::Descriptor; |
| 65 | using google::protobuf::EnumValueDescriptor; |
| 66 | using google::protobuf::FieldDescriptor; |
| 67 | using google::protobuf::internal::WireFormat; |
| 68 | using google::protobuf::internal::WireFormatLite; |
| 69 | using util::Status; |
| 70 | using util::StatusOr; |
| 71 | |
| 72 | namespace { |
| 73 | // Finds a field with the given number. NULL if none found. |
| 74 | const google::protobuf::Field* FindFieldByNumber( |
| 75 | const google::protobuf::Type& type, int number); |
| 76 | |
| 77 | // Returns true if the field is packable. |
| 78 | bool IsPackable(const google::protobuf::Field& field); |
| 79 | |
| 80 | // Finds an enum value with the given number. NULL if none found. |
| 81 | const google::protobuf::EnumValue* FindEnumValueByNumber( |
| 82 | const google::protobuf::Enum& tech_enum, int number); |
| 83 | |
| 84 | // Utility function to format nanos. |
| 85 | const string FormatNanos(uint32 nanos); |
| 86 | } // namespace |
| 87 | |
| 88 | |
| 89 | ProtoStreamObjectSource::ProtoStreamObjectSource( |
| 90 | google::protobuf::io::CodedInputStream* stream, TypeResolver* type_resolver, |
| 91 | const google::protobuf::Type& type) |
| 92 | : stream_(stream), |
| 93 | typeinfo_(TypeInfo::NewTypeInfo(type_resolver)), |
| 94 | own_typeinfo_(true), |
| 95 | type_(type) { |
| 96 | GOOGLE_LOG_IF(DFATAL, stream == NULL) << "Input stream is NULL."; |
| 97 | } |
| 98 | |
| 99 | ProtoStreamObjectSource::ProtoStreamObjectSource( |
Feng Xiao | eee38b0 | 2015-08-22 18:25:48 -0700 | [diff] [blame] | 100 | google::protobuf::io::CodedInputStream* stream, const TypeInfo* typeinfo, |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 101 | const google::protobuf::Type& type) |
| 102 | : stream_(stream), typeinfo_(typeinfo), own_typeinfo_(false), type_(type) { |
| 103 | GOOGLE_LOG_IF(DFATAL, stream == NULL) << "Input stream is NULL."; |
| 104 | } |
| 105 | |
| 106 | ProtoStreamObjectSource::~ProtoStreamObjectSource() { |
| 107 | if (own_typeinfo_) { |
| 108 | delete typeinfo_; |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | Status ProtoStreamObjectSource::NamedWriteTo(StringPiece name, |
| 113 | ObjectWriter* ow) const { |
| 114 | return WriteMessage(type_, name, 0, true, ow); |
| 115 | } |
| 116 | |
| 117 | const google::protobuf::Field* ProtoStreamObjectSource::FindAndVerifyField( |
| 118 | const google::protobuf::Type& type, uint32 tag) const { |
| 119 | // Lookup the new field in the type by tag number. |
| 120 | const google::protobuf::Field* field = FindFieldByNumber(type, tag >> 3); |
| 121 | // Verify if the field corresponds to the wire type in tag. |
| 122 | // If there is any discrepancy, mark the field as not found. |
| 123 | if (field != NULL) { |
| 124 | WireFormatLite::WireType expected_type = |
| 125 | WireFormatLite::WireTypeForFieldType( |
| 126 | static_cast<WireFormatLite::FieldType>(field->kind())); |
| 127 | WireFormatLite::WireType actual_type = WireFormatLite::GetTagWireType(tag); |
| 128 | if (actual_type != expected_type && |
| 129 | (!IsPackable(*field) || |
| 130 | actual_type != WireFormatLite::WIRETYPE_LENGTH_DELIMITED)) { |
| 131 | field = NULL; |
| 132 | } |
| 133 | } |
| 134 | return field; |
| 135 | } |
| 136 | |
| 137 | Status ProtoStreamObjectSource::WriteMessage(const google::protobuf::Type& type, |
| 138 | StringPiece name, |
| 139 | const uint32 end_tag, |
| 140 | bool include_start_and_end, |
| 141 | ObjectWriter* ow) const { |
Jisi Liu | 46e8ff6 | 2015-10-05 11:59:43 -0700 | [diff] [blame] | 142 | |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 143 | const TypeRenderer* type_renderer = FindTypeRenderer(type.name()); |
| 144 | if (type_renderer != NULL) { |
| 145 | return (*type_renderer)(this, type, name, ow); |
| 146 | } |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 147 | |
| 148 | const google::protobuf::Field* field = NULL; |
| 149 | string field_name; |
| 150 | // last_tag set to dummy value that is different from tag. |
| 151 | uint32 tag = stream_->ReadTag(), last_tag = tag + 1; |
| 152 | |
| 153 | if (include_start_and_end) { |
| 154 | ow->StartObject(name); |
| 155 | } |
| 156 | while (tag != end_tag) { |
| 157 | if (tag != last_tag) { // Update field only if tag is changed. |
| 158 | last_tag = tag; |
| 159 | field = FindAndVerifyField(type, tag); |
| 160 | if (field != NULL) { |
Feng Xiao | eee38b0 | 2015-08-22 18:25:48 -0700 | [diff] [blame] | 161 | field_name = field->json_name(); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 162 | } |
| 163 | } |
| 164 | if (field == NULL) { |
| 165 | // If we didn't find a field, skip this unknown tag. |
| 166 | // TODO(wpoon): Check return boolean value. |
| 167 | WireFormat::SkipField(stream_, tag, NULL); |
| 168 | tag = stream_->ReadTag(); |
| 169 | continue; |
| 170 | } |
| 171 | |
| 172 | if (field->cardinality() == |
| 173 | google::protobuf::Field_Cardinality_CARDINALITY_REPEATED) { |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 174 | bool check_maps = true; |
| 175 | |
| 176 | if (check_maps && IsMap(*field)) { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 177 | ow->StartObject(field_name); |
| 178 | ASSIGN_OR_RETURN(tag, RenderMap(field, field_name, tag, ow)); |
| 179 | ow->EndObject(); |
| 180 | } else { |
| 181 | ASSIGN_OR_RETURN(tag, RenderList(field, field_name, tag, ow)); |
| 182 | } |
| 183 | } else { |
| 184 | // Render the field. |
| 185 | RETURN_IF_ERROR(RenderField(field, field_name, ow)); |
| 186 | tag = stream_->ReadTag(); |
| 187 | } |
| 188 | } |
| 189 | if (include_start_and_end) { |
| 190 | ow->EndObject(); |
| 191 | } |
| 192 | return Status::OK; |
| 193 | } |
| 194 | |
| 195 | StatusOr<uint32> ProtoStreamObjectSource::RenderList( |
| 196 | const google::protobuf::Field* field, StringPiece name, uint32 list_tag, |
| 197 | ObjectWriter* ow) const { |
| 198 | uint32 tag_to_return = 0; |
| 199 | ow->StartList(name); |
| 200 | if (IsPackable(*field) && |
| 201 | list_tag == |
| 202 | WireFormatLite::MakeTag(field->number(), |
| 203 | WireFormatLite::WIRETYPE_LENGTH_DELIMITED)) { |
| 204 | RETURN_IF_ERROR(RenderPacked(field, ow)); |
| 205 | // Since packed fields have a single tag, read another tag from stream to |
| 206 | // return. |
| 207 | tag_to_return = stream_->ReadTag(); |
| 208 | } else { |
| 209 | do { |
| 210 | RETURN_IF_ERROR(RenderField(field, "", ow)); |
| 211 | } while ((tag_to_return = stream_->ReadTag()) == list_tag); |
| 212 | } |
| 213 | ow->EndList(); |
| 214 | return tag_to_return; |
| 215 | } |
| 216 | |
| 217 | StatusOr<uint32> ProtoStreamObjectSource::RenderMap( |
| 218 | const google::protobuf::Field* field, StringPiece name, uint32 list_tag, |
| 219 | ObjectWriter* ow) const { |
| 220 | const google::protobuf::Type* field_type = |
Feng Xiao | eee38b0 | 2015-08-22 18:25:48 -0700 | [diff] [blame] | 221 | typeinfo_->GetTypeByTypeUrl(field->type_url()); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 222 | uint32 tag_to_return = 0; |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 223 | do { |
| 224 | // Render map entry message type. |
| 225 | uint32 buffer32; |
| 226 | stream_->ReadVarint32(&buffer32); // message length |
| 227 | int old_limit = stream_->PushLimit(buffer32); |
| 228 | string map_key; |
| 229 | for (uint32 tag = stream_->ReadTag(); tag != 0; tag = stream_->ReadTag()) { |
| 230 | const google::protobuf::Field* field = |
| 231 | FindAndVerifyField(*field_type, tag); |
| 232 | if (field == NULL) { |
| 233 | WireFormat::SkipField(stream_, tag, NULL); |
| 234 | continue; |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 235 | } |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 236 | // Map field numbers are key = 1 and value = 2 |
| 237 | if (field->number() == 1) { |
| 238 | map_key = ReadFieldValueAsString(*field); |
| 239 | } else if (field->number() == 2) { |
| 240 | if (map_key.empty()) { |
| 241 | return Status(util::error::INTERNAL, "Map key must be non-empty"); |
| 242 | } |
| 243 | RETURN_IF_ERROR(RenderField(field, map_key, ow)); |
| 244 | } |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 245 | } |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 246 | stream_->PopLimit(old_limit); |
| 247 | } while ((tag_to_return = stream_->ReadTag()) == list_tag); |
| 248 | return tag_to_return; |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | Status ProtoStreamObjectSource::RenderPacked( |
| 252 | const google::protobuf::Field* field, ObjectWriter* ow) const { |
| 253 | uint32 length; |
| 254 | stream_->ReadVarint32(&length); |
| 255 | int old_limit = stream_->PushLimit(length); |
| 256 | while (stream_->BytesUntilLimit() > 0) { |
| 257 | RETURN_IF_ERROR(RenderField(field, StringPiece(), ow)); |
| 258 | } |
| 259 | stream_->PopLimit(old_limit); |
| 260 | return Status::OK; |
| 261 | } |
| 262 | |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 263 | Status ProtoStreamObjectSource::RenderTimestamp( |
| 264 | const ProtoStreamObjectSource* os, const google::protobuf::Type& type, |
| 265 | StringPiece field_name, ObjectWriter* ow) { |
| 266 | pair<int64, int32> p = os->ReadSecondsAndNanos(type); |
| 267 | int64 seconds = p.first; |
| 268 | int32 nanos = p.second; |
| 269 | if (seconds > kMaxSeconds || seconds < kMinSeconds) { |
| 270 | return Status( |
| 271 | util::error::INTERNAL, |
| 272 | StrCat("Timestamp seconds exceeds limit for field: ", field_name)); |
| 273 | } |
| 274 | |
| 275 | if (nanos < 0 || nanos >= kNanosPerSecond) { |
| 276 | return Status( |
| 277 | util::error::INTERNAL, |
| 278 | StrCat("Timestamp nanos exceeds limit for field: ", field_name)); |
| 279 | } |
| 280 | |
| 281 | ow->RenderString(field_name, |
| 282 | ::google::protobuf::internal::FormatTime(seconds, nanos)); |
| 283 | |
| 284 | return Status::OK; |
| 285 | } |
| 286 | |
| 287 | Status ProtoStreamObjectSource::RenderDuration( |
| 288 | const ProtoStreamObjectSource* os, const google::protobuf::Type& type, |
| 289 | StringPiece field_name, ObjectWriter* ow) { |
| 290 | pair<int64, int32> p = os->ReadSecondsAndNanos(type); |
| 291 | int64 seconds = p.first; |
| 292 | int32 nanos = p.second; |
| 293 | if (seconds > kMaxSeconds || seconds < kMinSeconds) { |
| 294 | return Status( |
| 295 | util::error::INTERNAL, |
| 296 | StrCat("Duration seconds exceeds limit for field: ", field_name)); |
| 297 | } |
| 298 | |
| 299 | if (nanos <= -kNanosPerSecond || nanos >= kNanosPerSecond) { |
| 300 | return Status( |
| 301 | util::error::INTERNAL, |
| 302 | StrCat("Duration nanos exceeds limit for field: ", field_name)); |
| 303 | } |
| 304 | |
| 305 | string sign = ""; |
| 306 | if (seconds < 0) { |
| 307 | if (nanos > 0) { |
| 308 | return Status(util::error::INTERNAL, |
Jisi Liu | 46e8ff6 | 2015-10-05 11:59:43 -0700 | [diff] [blame] | 309 | StrCat("Duration nanos is non-negative, but seconds is " |
| 310 | "negative for field: ", |
| 311 | field_name)); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 312 | } |
| 313 | sign = "-"; |
| 314 | seconds = -seconds; |
| 315 | nanos = -nanos; |
| 316 | } else if (seconds == 0 && nanos < 0) { |
| 317 | sign = "-"; |
| 318 | nanos = -nanos; |
| 319 | } |
| 320 | string formatted_duration = StringPrintf("%s%lld%ss", sign.c_str(), seconds, |
| 321 | FormatNanos(nanos).c_str()); |
| 322 | ow->RenderString(field_name, formatted_duration); |
| 323 | return Status::OK; |
| 324 | } |
| 325 | |
| 326 | Status ProtoStreamObjectSource::RenderDouble(const ProtoStreamObjectSource* os, |
| 327 | const google::protobuf::Type& type, |
| 328 | StringPiece field_name, |
| 329 | ObjectWriter* ow) { |
| 330 | uint32 tag = os->stream_->ReadTag(); |
| 331 | uint64 buffer64 = 0; // default value of Double wrapper value |
| 332 | if (tag != 0) { |
| 333 | os->stream_->ReadLittleEndian64(&buffer64); |
| 334 | os->stream_->ReadTag(); |
| 335 | } |
| 336 | ow->RenderDouble(field_name, bit_cast<double>(buffer64)); |
| 337 | return Status::OK; |
| 338 | } |
| 339 | |
| 340 | Status ProtoStreamObjectSource::RenderFloat(const ProtoStreamObjectSource* os, |
| 341 | const google::protobuf::Type& type, |
| 342 | StringPiece field_name, |
| 343 | ObjectWriter* ow) { |
| 344 | uint32 tag = os->stream_->ReadTag(); |
| 345 | uint32 buffer32 = 0; // default value of Float wrapper value |
| 346 | if (tag != 0) { |
| 347 | os->stream_->ReadLittleEndian32(&buffer32); |
| 348 | os->stream_->ReadTag(); |
| 349 | } |
| 350 | ow->RenderFloat(field_name, bit_cast<float>(buffer32)); |
| 351 | return Status::OK; |
| 352 | } |
| 353 | |
| 354 | Status ProtoStreamObjectSource::RenderInt64(const ProtoStreamObjectSource* os, |
| 355 | const google::protobuf::Type& type, |
| 356 | StringPiece field_name, |
| 357 | ObjectWriter* ow) { |
| 358 | uint32 tag = os->stream_->ReadTag(); |
| 359 | uint64 buffer64 = 0; // default value of Int64 wrapper value |
| 360 | if (tag != 0) { |
| 361 | os->stream_->ReadVarint64(&buffer64); |
| 362 | os->stream_->ReadTag(); |
| 363 | } |
| 364 | ow->RenderInt64(field_name, bit_cast<int64>(buffer64)); |
| 365 | return Status::OK; |
| 366 | } |
| 367 | |
| 368 | Status ProtoStreamObjectSource::RenderUInt64(const ProtoStreamObjectSource* os, |
| 369 | const google::protobuf::Type& type, |
| 370 | StringPiece field_name, |
| 371 | ObjectWriter* ow) { |
| 372 | uint32 tag = os->stream_->ReadTag(); |
| 373 | uint64 buffer64 = 0; // default value of UInt64 wrapper value |
| 374 | if (tag != 0) { |
| 375 | os->stream_->ReadVarint64(&buffer64); |
| 376 | os->stream_->ReadTag(); |
| 377 | } |
| 378 | ow->RenderUint64(field_name, bit_cast<uint64>(buffer64)); |
| 379 | return Status::OK; |
| 380 | } |
| 381 | |
| 382 | Status ProtoStreamObjectSource::RenderInt32(const ProtoStreamObjectSource* os, |
| 383 | const google::protobuf::Type& type, |
| 384 | StringPiece field_name, |
| 385 | ObjectWriter* ow) { |
| 386 | uint32 tag = os->stream_->ReadTag(); |
| 387 | uint32 buffer32 = 0; // default value of Int32 wrapper value |
| 388 | if (tag != 0) { |
| 389 | os->stream_->ReadVarint32(&buffer32); |
| 390 | os->stream_->ReadTag(); |
| 391 | } |
| 392 | ow->RenderInt32(field_name, bit_cast<int32>(buffer32)); |
| 393 | return Status::OK; |
| 394 | } |
| 395 | |
| 396 | Status ProtoStreamObjectSource::RenderUInt32(const ProtoStreamObjectSource* os, |
| 397 | const google::protobuf::Type& type, |
| 398 | StringPiece field_name, |
| 399 | ObjectWriter* ow) { |
| 400 | uint32 tag = os->stream_->ReadTag(); |
| 401 | uint32 buffer32 = 0; // default value of UInt32 wrapper value |
| 402 | if (tag != 0) { |
| 403 | os->stream_->ReadVarint32(&buffer32); |
| 404 | os->stream_->ReadTag(); |
| 405 | } |
| 406 | ow->RenderUint32(field_name, bit_cast<uint32>(buffer32)); |
| 407 | return Status::OK; |
| 408 | } |
| 409 | |
| 410 | Status ProtoStreamObjectSource::RenderBool(const ProtoStreamObjectSource* os, |
| 411 | const google::protobuf::Type& type, |
| 412 | StringPiece field_name, |
| 413 | ObjectWriter* ow) { |
| 414 | uint32 tag = os->stream_->ReadTag(); |
| 415 | uint64 buffer64 = 0; // results in 'false' value as default, which is the |
| 416 | // default value of Bool wrapper |
| 417 | if (tag != 0) { |
| 418 | os->stream_->ReadVarint64(&buffer64); |
| 419 | os->stream_->ReadTag(); |
| 420 | } |
| 421 | ow->RenderBool(field_name, buffer64 != 0); |
| 422 | return Status::OK; |
| 423 | } |
| 424 | |
| 425 | Status ProtoStreamObjectSource::RenderString(const ProtoStreamObjectSource* os, |
| 426 | const google::protobuf::Type& type, |
| 427 | StringPiece field_name, |
| 428 | ObjectWriter* ow) { |
| 429 | uint32 tag = os->stream_->ReadTag(); |
| 430 | uint32 buffer32; |
| 431 | string str; // default value of empty for String wrapper |
| 432 | if (tag != 0) { |
| 433 | os->stream_->ReadVarint32(&buffer32); // string size. |
| 434 | os->stream_->ReadString(&str, buffer32); |
| 435 | os->stream_->ReadTag(); |
| 436 | } |
| 437 | ow->RenderString(field_name, str); |
| 438 | return Status::OK; |
| 439 | } |
| 440 | |
| 441 | Status ProtoStreamObjectSource::RenderBytes(const ProtoStreamObjectSource* os, |
| 442 | const google::protobuf::Type& type, |
| 443 | StringPiece field_name, |
| 444 | ObjectWriter* ow) { |
| 445 | uint32 tag = os->stream_->ReadTag(); |
| 446 | uint32 buffer32; |
| 447 | string str; |
| 448 | if (tag != 0) { |
| 449 | os->stream_->ReadVarint32(&buffer32); |
| 450 | os->stream_->ReadString(&str, buffer32); |
| 451 | os->stream_->ReadTag(); |
| 452 | } |
| 453 | ow->RenderBytes(field_name, str); |
| 454 | return Status::OK; |
| 455 | } |
| 456 | |
| 457 | Status ProtoStreamObjectSource::RenderStruct(const ProtoStreamObjectSource* os, |
| 458 | const google::protobuf::Type& type, |
| 459 | StringPiece field_name, |
| 460 | ObjectWriter* ow) { |
| 461 | const google::protobuf::Field* field = NULL; |
| 462 | uint32 tag = os->stream_->ReadTag(); |
| 463 | ow->StartObject(field_name); |
| 464 | while (tag != 0) { |
| 465 | field = os->FindAndVerifyField(type, tag); |
| 466 | // google.protobuf.Struct has only one field that is a map. Hence we use |
| 467 | // RenderMap to render that field. |
| 468 | if (os->IsMap(*field)) { |
| 469 | ASSIGN_OR_RETURN(tag, os->RenderMap(field, field_name, tag, ow)); |
| 470 | } |
| 471 | } |
| 472 | ow->EndObject(); |
| 473 | return Status::OK; |
| 474 | } |
| 475 | |
| 476 | Status ProtoStreamObjectSource::RenderStructValue( |
| 477 | const ProtoStreamObjectSource* os, const google::protobuf::Type& type, |
| 478 | StringPiece field_name, ObjectWriter* ow) { |
| 479 | const google::protobuf::Field* field = NULL; |
| 480 | for (uint32 tag = os->stream_->ReadTag(); tag != 0; |
| 481 | tag = os->stream_->ReadTag()) { |
| 482 | field = os->FindAndVerifyField(type, tag); |
| 483 | if (field == NULL) { |
| 484 | WireFormat::SkipField(os->stream_, tag, NULL); |
| 485 | continue; |
| 486 | } |
| 487 | RETURN_IF_ERROR(os->RenderField(field, field_name, ow)); |
| 488 | } |
| 489 | return Status::OK; |
| 490 | } |
| 491 | |
| 492 | // TODO(skarvaje): Avoid code duplication of for loops and SkipField logic. |
| 493 | Status ProtoStreamObjectSource::RenderStructListValue( |
| 494 | const ProtoStreamObjectSource* os, const google::protobuf::Type& type, |
| 495 | StringPiece field_name, ObjectWriter* ow) { |
| 496 | uint32 tag = os->stream_->ReadTag(); |
| 497 | |
| 498 | // Render empty list when we find empty ListValue message. |
| 499 | if (tag == 0) { |
| 500 | ow->StartList(field_name); |
| 501 | ow->EndList(); |
| 502 | return Status::OK; |
| 503 | } |
| 504 | |
| 505 | while (tag != 0) { |
| 506 | const google::protobuf::Field* field = os->FindAndVerifyField(type, tag); |
| 507 | if (field == NULL) { |
| 508 | WireFormat::SkipField(os->stream_, tag, NULL); |
| 509 | tag = os->stream_->ReadTag(); |
| 510 | continue; |
| 511 | } |
| 512 | ASSIGN_OR_RETURN(tag, os->RenderList(field, field_name, tag, ow)); |
| 513 | } |
| 514 | return Status::OK; |
| 515 | } |
| 516 | |
| 517 | Status ProtoStreamObjectSource::RenderAny(const ProtoStreamObjectSource* os, |
| 518 | const google::protobuf::Type& type, |
| 519 | StringPiece field_name, |
| 520 | ObjectWriter* ow) { |
| 521 | // An Any is of the form { string type_url = 1; bytes value = 2; } |
| 522 | uint32 tag; |
| 523 | string type_url; |
| 524 | string value; |
| 525 | |
| 526 | // First read out the type_url and value from the proto stream |
| 527 | for (tag = os->stream_->ReadTag(); tag != 0; tag = os->stream_->ReadTag()) { |
| 528 | const google::protobuf::Field* field = os->FindAndVerifyField(type, tag); |
| 529 | if (field == NULL) { |
| 530 | WireFormat::SkipField(os->stream_, tag, NULL); |
| 531 | continue; |
| 532 | } |
| 533 | // 'type_url' has field number of 1 and 'value' has field number 2 |
| 534 | // //google/protobuf/any.proto |
| 535 | if (field->number() == 1) { |
| 536 | // read type_url |
| 537 | uint32 type_url_size; |
| 538 | os->stream_->ReadVarint32(&type_url_size); |
| 539 | os->stream_->ReadString(&type_url, type_url_size); |
| 540 | } else if (field->number() == 2) { |
| 541 | // read value |
| 542 | uint32 value_size; |
| 543 | os->stream_->ReadVarint32(&value_size); |
| 544 | os->stream_->ReadString(&value, value_size); |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | // If there is no value, we don't lookup the type, we just output it (if |
| 549 | // present). If both type and value are empty we output an empty object. |
| 550 | if (value.empty()) { |
| 551 | ow->StartObject(field_name); |
| 552 | if (!type_url.empty()) { |
| 553 | ow->RenderString("@type", type_url); |
| 554 | } |
| 555 | ow->EndObject(); |
| 556 | return util::Status::OK; |
| 557 | } |
| 558 | |
| 559 | // If there is a value but no type, we cannot render it, so report an error. |
| 560 | if (type_url.empty()) { |
| 561 | // TODO(sven): Add an external message once those are ready. |
| 562 | return util::Status(util::error::INTERNAL, |
| 563 | "Invalid Any, the type_url is missing."); |
| 564 | } |
| 565 | |
| 566 | util::StatusOr<const google::protobuf::Type*> resolved_type = |
| 567 | os->typeinfo_->ResolveTypeUrl(type_url); |
| 568 | |
| 569 | if (!resolved_type.ok()) { |
| 570 | // Convert into an internal error, since this means the backend gave us |
| 571 | // an invalid response (missing or invalid type information). |
| 572 | return util::Status(util::error::INTERNAL, |
| 573 | resolved_type.status().error_message()); |
| 574 | } |
| 575 | // nested_type cannot be null at this time. |
| 576 | const google::protobuf::Type* nested_type = resolved_type.ValueOrDie(); |
| 577 | |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 578 | google::protobuf::io::ArrayInputStream zero_copy_stream(value.data(), value.size()); |
| 579 | google::protobuf::io::CodedInputStream in_stream(&zero_copy_stream); |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 580 | // We know the type so we can render it. Recursively parse the nested stream |
| 581 | // using a nested ProtoStreamObjectSource using our nested type information. |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 582 | ProtoStreamObjectSource nested_os(&in_stream, os->typeinfo_, *nested_type); |
| 583 | |
| 584 | // We manually call start and end object here so we can inject the @type. |
| 585 | ow->StartObject(field_name); |
| 586 | ow->RenderString("@type", type_url); |
| 587 | util::Status result = |
| 588 | nested_os.WriteMessage(nested_os.type_, "value", 0, false, ow); |
| 589 | ow->EndObject(); |
| 590 | return result; |
| 591 | } |
| 592 | |
| 593 | Status ProtoStreamObjectSource::RenderFieldMask( |
| 594 | const ProtoStreamObjectSource* os, const google::protobuf::Type& type, |
| 595 | StringPiece field_name, ObjectWriter* ow) { |
| 596 | string combined; |
| 597 | uint32 buffer32; |
| 598 | uint32 paths_field_tag = 0; |
| 599 | for (uint32 tag = os->stream_->ReadTag(); tag != 0; |
| 600 | tag = os->stream_->ReadTag()) { |
| 601 | if (paths_field_tag == 0) { |
| 602 | const google::protobuf::Field* field = os->FindAndVerifyField(type, tag); |
| 603 | if (field != NULL && field->number() == 1 && |
| 604 | field->name() == "paths") { |
| 605 | paths_field_tag = tag; |
| 606 | } |
| 607 | } |
| 608 | if (paths_field_tag != tag) { |
| 609 | return util::Status(util::error::INTERNAL, |
| 610 | "Invalid FieldMask, unexpected field."); |
| 611 | } |
| 612 | string str; |
| 613 | os->stream_->ReadVarint32(&buffer32); // string size. |
| 614 | os->stream_->ReadString(&str, buffer32); |
| 615 | if (!combined.empty()) { |
| 616 | combined.append(","); |
| 617 | } |
| 618 | combined.append(ConvertFieldMaskPath(str, &ToCamelCase)); |
| 619 | } |
| 620 | ow->RenderString(field_name, combined); |
| 621 | return Status::OK; |
| 622 | } |
| 623 | |
Jisi Liu | 46e8ff6 | 2015-10-05 11:59:43 -0700 | [diff] [blame] | 624 | |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 625 | hash_map<string, ProtoStreamObjectSource::TypeRenderer>* |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 626 | ProtoStreamObjectSource::renderers_ = NULL; |
| 627 | GOOGLE_PROTOBUF_DECLARE_ONCE(source_renderers_init_); |
| 628 | |
| 629 | void ProtoStreamObjectSource::InitRendererMap() { |
| 630 | renderers_ = new hash_map<string, ProtoStreamObjectSource::TypeRenderer>(); |
| 631 | (*renderers_)["google.protobuf.Timestamp"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 632 | &ProtoStreamObjectSource::RenderTimestamp; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 633 | (*renderers_)["google.protobuf.Duration"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 634 | &ProtoStreamObjectSource::RenderDuration; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 635 | (*renderers_)["google.protobuf.DoubleValue"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 636 | &ProtoStreamObjectSource::RenderDouble; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 637 | (*renderers_)["google.protobuf.FloatValue"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 638 | &ProtoStreamObjectSource::RenderFloat; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 639 | (*renderers_)["google.protobuf.Int64Value"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 640 | &ProtoStreamObjectSource::RenderInt64; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 641 | (*renderers_)["google.protobuf.UInt64Value"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 642 | &ProtoStreamObjectSource::RenderUInt64; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 643 | (*renderers_)["google.protobuf.Int32Value"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 644 | &ProtoStreamObjectSource::RenderInt32; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 645 | (*renderers_)["google.protobuf.UInt32Value"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 646 | &ProtoStreamObjectSource::RenderUInt32; |
Jisi Liu | 46e8ff6 | 2015-10-05 11:59:43 -0700 | [diff] [blame] | 647 | (*renderers_)["google.protobuf.BoolValue"] = |
| 648 | &ProtoStreamObjectSource::RenderBool; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 649 | (*renderers_)["google.protobuf.StringValue"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 650 | &ProtoStreamObjectSource::RenderString; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 651 | (*renderers_)["google.protobuf.BytesValue"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 652 | &ProtoStreamObjectSource::RenderBytes; |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 653 | (*renderers_)["google.protobuf.Any"] = &ProtoStreamObjectSource::RenderAny; |
Jisi Liu | 46e8ff6 | 2015-10-05 11:59:43 -0700 | [diff] [blame] | 654 | (*renderers_)["google.protobuf.Struct"] = |
| 655 | &ProtoStreamObjectSource::RenderStruct; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 656 | (*renderers_)["google.protobuf.Value"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 657 | &ProtoStreamObjectSource::RenderStructValue; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 658 | (*renderers_)["google.protobuf.ListValue"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 659 | &ProtoStreamObjectSource::RenderStructListValue; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 660 | (*renderers_)["google.protobuf.FieldMask"] = |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 661 | &ProtoStreamObjectSource::RenderFieldMask; |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 662 | ::google::protobuf::internal::OnShutdown(&DeleteRendererMap); |
| 663 | } |
| 664 | |
| 665 | void ProtoStreamObjectSource::DeleteRendererMap() { |
| 666 | delete ProtoStreamObjectSource::renderers_; |
| 667 | renderers_ = NULL; |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 668 | } |
| 669 | |
| 670 | // static |
| 671 | ProtoStreamObjectSource::TypeRenderer* |
| 672 | ProtoStreamObjectSource::FindTypeRenderer(const string& type_url) { |
Jisi Liu | 0977815 | 2015-08-25 22:01:12 -0700 | [diff] [blame] | 673 | ::google::protobuf::GoogleOnceInit(&source_renderers_init_, &InitRendererMap); |
| 674 | return FindOrNull(*renderers_, type_url); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 675 | } |
| 676 | |
| 677 | Status ProtoStreamObjectSource::RenderField( |
| 678 | const google::protobuf::Field* field, StringPiece field_name, |
| 679 | ObjectWriter* ow) const { |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 680 | // Short-circuit message types as it tends to call WriteMessage recursively |
| 681 | // and ends up using a lot of stack space. Keep the stack usage of this |
| 682 | // message small in order to preserve stack space and not crash. |
| 683 | if (field->kind() == google::protobuf::Field_Kind_TYPE_MESSAGE) { |
| 684 | uint32 buffer32; |
| 685 | stream_->ReadVarint32(&buffer32); // message length |
| 686 | int old_limit = stream_->PushLimit(buffer32); |
| 687 | // Get the nested message type for this field. |
| 688 | const google::protobuf::Type* type = |
| 689 | typeinfo_->GetTypeByTypeUrl(field->type_url()); |
| 690 | if (type == NULL) { |
| 691 | return Status(util::error::INTERNAL, |
| 692 | StrCat("Invalid configuration. Could not find the type: ", |
| 693 | field->type_url())); |
| 694 | } |
| 695 | |
| 696 | // Short-circuit any special type rendering to save call-stack space. |
| 697 | const TypeRenderer* type_renderer = FindTypeRenderer(type->name()); |
| 698 | |
| 699 | bool use_type_renderer = type_renderer != NULL; |
| 700 | |
| 701 | if (use_type_renderer) { |
| 702 | RETURN_IF_ERROR((*type_renderer)(this, *type, field_name, ow)); |
| 703 | } else { |
| 704 | RETURN_IF_ERROR(WriteMessage(*type, field_name, 0, true, ow)); |
| 705 | } |
| 706 | if (!stream_->ConsumedEntireMessage()) { |
| 707 | return Status(util::error::INVALID_ARGUMENT, |
| 708 | "Nested protocol message not parsed in its entirety."); |
| 709 | } |
| 710 | stream_->PopLimit(old_limit); |
| 711 | } else { |
| 712 | // Render all other non-message types. |
| 713 | return RenderNonMessageField(field, field_name, ow); |
| 714 | } |
| 715 | return Status::OK; |
| 716 | } |
| 717 | |
| 718 | Status ProtoStreamObjectSource::RenderNonMessageField( |
| 719 | const google::protobuf::Field* field, StringPiece field_name, |
| 720 | ObjectWriter* ow) const { |
| 721 | // Temporary buffers of different types. |
| 722 | uint32 buffer32; |
| 723 | uint64 buffer64; |
| 724 | string strbuffer; |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 725 | switch (field->kind()) { |
| 726 | case google::protobuf::Field_Kind_TYPE_BOOL: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 727 | stream_->ReadVarint64(&buffer64); |
| 728 | ow->RenderBool(field_name, buffer64 != 0); |
| 729 | break; |
| 730 | } |
| 731 | case google::protobuf::Field_Kind_TYPE_INT32: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 732 | stream_->ReadVarint32(&buffer32); |
| 733 | ow->RenderInt32(field_name, bit_cast<int32>(buffer32)); |
| 734 | break; |
| 735 | } |
| 736 | case google::protobuf::Field_Kind_TYPE_INT64: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 737 | stream_->ReadVarint64(&buffer64); |
| 738 | ow->RenderInt64(field_name, bit_cast<int64>(buffer64)); |
| 739 | break; |
| 740 | } |
| 741 | case google::protobuf::Field_Kind_TYPE_UINT32: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 742 | stream_->ReadVarint32(&buffer32); |
| 743 | ow->RenderUint32(field_name, bit_cast<uint32>(buffer32)); |
| 744 | break; |
| 745 | } |
| 746 | case google::protobuf::Field_Kind_TYPE_UINT64: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 747 | stream_->ReadVarint64(&buffer64); |
| 748 | ow->RenderUint64(field_name, bit_cast<uint64>(buffer64)); |
| 749 | break; |
| 750 | } |
| 751 | case google::protobuf::Field_Kind_TYPE_SINT32: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 752 | stream_->ReadVarint32(&buffer32); |
| 753 | ow->RenderInt32(field_name, WireFormatLite::ZigZagDecode32(buffer32)); |
| 754 | break; |
| 755 | } |
| 756 | case google::protobuf::Field_Kind_TYPE_SINT64: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 757 | stream_->ReadVarint64(&buffer64); |
| 758 | ow->RenderInt64(field_name, WireFormatLite::ZigZagDecode64(buffer64)); |
| 759 | break; |
| 760 | } |
| 761 | case google::protobuf::Field_Kind_TYPE_SFIXED32: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 762 | stream_->ReadLittleEndian32(&buffer32); |
| 763 | ow->RenderInt32(field_name, bit_cast<int32>(buffer32)); |
| 764 | break; |
| 765 | } |
| 766 | case google::protobuf::Field_Kind_TYPE_SFIXED64: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 767 | stream_->ReadLittleEndian64(&buffer64); |
| 768 | ow->RenderInt64(field_name, bit_cast<int64>(buffer64)); |
| 769 | break; |
| 770 | } |
| 771 | case google::protobuf::Field_Kind_TYPE_FIXED32: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 772 | stream_->ReadLittleEndian32(&buffer32); |
| 773 | ow->RenderUint32(field_name, bit_cast<uint32>(buffer32)); |
| 774 | break; |
| 775 | } |
| 776 | case google::protobuf::Field_Kind_TYPE_FIXED64: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 777 | stream_->ReadLittleEndian64(&buffer64); |
| 778 | ow->RenderUint64(field_name, bit_cast<uint64>(buffer64)); |
| 779 | break; |
| 780 | } |
| 781 | case google::protobuf::Field_Kind_TYPE_FLOAT: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 782 | stream_->ReadLittleEndian32(&buffer32); |
| 783 | ow->RenderFloat(field_name, bit_cast<float>(buffer32)); |
| 784 | break; |
| 785 | } |
| 786 | case google::protobuf::Field_Kind_TYPE_DOUBLE: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 787 | stream_->ReadLittleEndian64(&buffer64); |
| 788 | ow->RenderDouble(field_name, bit_cast<double>(buffer64)); |
| 789 | break; |
| 790 | } |
| 791 | case google::protobuf::Field_Kind_TYPE_ENUM: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 792 | stream_->ReadVarint32(&buffer32); |
| 793 | |
| 794 | // If the field represents an explicit NULL value, render null. |
| 795 | if (field->type_url() == kStructNullValueTypeUrl) { |
| 796 | ow->RenderNull(field_name); |
| 797 | break; |
| 798 | } |
| 799 | |
| 800 | // Get the nested enum type for this field. |
| 801 | // TODO(skarvaje): Avoid string manipulation. Find ways to speed this |
| 802 | // up. |
Feng Xiao | eee38b0 | 2015-08-22 18:25:48 -0700 | [diff] [blame] | 803 | const google::protobuf::Enum* en = |
| 804 | typeinfo_->GetEnumByTypeUrl(field->type_url()); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 805 | // Lookup the name of the enum, and render that. Skips unknown enums. |
| 806 | if (en != NULL) { |
| 807 | const google::protobuf::EnumValue* enum_value = |
| 808 | FindEnumValueByNumber(*en, buffer32); |
| 809 | if (enum_value != NULL) { |
| 810 | ow->RenderString(field_name, enum_value->name()); |
| 811 | } |
| 812 | } else { |
Benjamin Barenblat | a2ce9cb | 2015-10-30 14:05:24 -0400 | [diff] [blame] | 813 | GOOGLE_LOG(INFO) << "Unknown enum skipped: " << field->type_url(); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 814 | } |
| 815 | break; |
| 816 | } |
| 817 | case google::protobuf::Field_Kind_TYPE_STRING: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 818 | stream_->ReadVarint32(&buffer32); // string size. |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 819 | stream_->ReadString(&strbuffer, buffer32); |
| 820 | ow->RenderString(field_name, strbuffer); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 821 | break; |
| 822 | } |
| 823 | case google::protobuf::Field_Kind_TYPE_BYTES: { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 824 | stream_->ReadVarint32(&buffer32); // bytes size. |
Feng Xiao | e841bac | 2015-12-11 17:09:20 -0800 | [diff] [blame] | 825 | stream_->ReadString(&strbuffer, buffer32); |
| 826 | ow->RenderBytes(field_name, strbuffer); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 827 | break; |
| 828 | } |
| 829 | default: |
| 830 | break; |
| 831 | } |
| 832 | return Status::OK; |
| 833 | } |
| 834 | |
| 835 | // TODO(skarvaje): Fix this to avoid code duplication. |
| 836 | const string ProtoStreamObjectSource::ReadFieldValueAsString( |
| 837 | const google::protobuf::Field& field) const { |
| 838 | string result; |
| 839 | switch (field.kind()) { |
| 840 | case google::protobuf::Field_Kind_TYPE_BOOL: { |
| 841 | uint64 buffer64; |
| 842 | stream_->ReadVarint64(&buffer64); |
| 843 | result = buffer64 != 0 ? "true" : "false"; |
| 844 | break; |
| 845 | } |
| 846 | case google::protobuf::Field_Kind_TYPE_INT32: { |
| 847 | uint32 buffer32; |
| 848 | stream_->ReadVarint32(&buffer32); |
| 849 | result = SimpleItoa(bit_cast<int32>(buffer32)); |
| 850 | break; |
| 851 | } |
| 852 | case google::protobuf::Field_Kind_TYPE_INT64: { |
| 853 | uint64 buffer64; |
| 854 | stream_->ReadVarint64(&buffer64); |
| 855 | result = SimpleItoa(bit_cast<int64>(buffer64)); |
| 856 | break; |
| 857 | } |
| 858 | case google::protobuf::Field_Kind_TYPE_UINT32: { |
| 859 | uint32 buffer32; |
| 860 | stream_->ReadVarint32(&buffer32); |
| 861 | result = SimpleItoa(bit_cast<uint32>(buffer32)); |
| 862 | break; |
| 863 | } |
| 864 | case google::protobuf::Field_Kind_TYPE_UINT64: { |
| 865 | uint64 buffer64; |
| 866 | stream_->ReadVarint64(&buffer64); |
| 867 | result = SimpleItoa(bit_cast<uint64>(buffer64)); |
| 868 | break; |
| 869 | } |
| 870 | case google::protobuf::Field_Kind_TYPE_SINT32: { |
| 871 | uint32 buffer32; |
| 872 | stream_->ReadVarint32(&buffer32); |
| 873 | result = SimpleItoa(WireFormatLite::ZigZagDecode32(buffer32)); |
| 874 | break; |
| 875 | } |
| 876 | case google::protobuf::Field_Kind_TYPE_SINT64: { |
| 877 | uint64 buffer64; |
| 878 | stream_->ReadVarint64(&buffer64); |
| 879 | result = SimpleItoa(WireFormatLite::ZigZagDecode64(buffer64)); |
| 880 | break; |
| 881 | } |
| 882 | case google::protobuf::Field_Kind_TYPE_SFIXED32: { |
| 883 | uint32 buffer32; |
| 884 | stream_->ReadLittleEndian32(&buffer32); |
| 885 | result = SimpleItoa(bit_cast<int32>(buffer32)); |
| 886 | break; |
| 887 | } |
| 888 | case google::protobuf::Field_Kind_TYPE_SFIXED64: { |
| 889 | uint64 buffer64; |
| 890 | stream_->ReadLittleEndian64(&buffer64); |
| 891 | result = SimpleItoa(bit_cast<int64>(buffer64)); |
| 892 | break; |
| 893 | } |
| 894 | case google::protobuf::Field_Kind_TYPE_FIXED32: { |
| 895 | uint32 buffer32; |
| 896 | stream_->ReadLittleEndian32(&buffer32); |
| 897 | result = SimpleItoa(bit_cast<uint32>(buffer32)); |
| 898 | break; |
| 899 | } |
| 900 | case google::protobuf::Field_Kind_TYPE_FIXED64: { |
| 901 | uint64 buffer64; |
| 902 | stream_->ReadLittleEndian64(&buffer64); |
| 903 | result = SimpleItoa(bit_cast<uint64>(buffer64)); |
| 904 | break; |
| 905 | } |
| 906 | case google::protobuf::Field_Kind_TYPE_FLOAT: { |
| 907 | uint32 buffer32; |
| 908 | stream_->ReadLittleEndian32(&buffer32); |
| 909 | result = SimpleFtoa(bit_cast<float>(buffer32)); |
| 910 | break; |
| 911 | } |
| 912 | case google::protobuf::Field_Kind_TYPE_DOUBLE: { |
| 913 | uint64 buffer64; |
| 914 | stream_->ReadLittleEndian64(&buffer64); |
| 915 | result = SimpleDtoa(bit_cast<double>(buffer64)); |
| 916 | break; |
| 917 | } |
| 918 | case google::protobuf::Field_Kind_TYPE_ENUM: { |
| 919 | uint32 buffer32; |
| 920 | stream_->ReadVarint32(&buffer32); |
| 921 | // Get the nested enum type for this field. |
| 922 | // TODO(skarvaje): Avoid string manipulation. Find ways to speed this |
| 923 | // up. |
Feng Xiao | eee38b0 | 2015-08-22 18:25:48 -0700 | [diff] [blame] | 924 | const google::protobuf::Enum* en = |
| 925 | typeinfo_->GetEnumByTypeUrl(field.type_url()); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 926 | // Lookup the name of the enum, and render that. Skips unknown enums. |
| 927 | if (en != NULL) { |
| 928 | const google::protobuf::EnumValue* enum_value = |
| 929 | FindEnumValueByNumber(*en, buffer32); |
| 930 | if (enum_value != NULL) { |
| 931 | result = enum_value->name(); |
| 932 | } |
| 933 | } |
| 934 | break; |
| 935 | } |
| 936 | case google::protobuf::Field_Kind_TYPE_STRING: { |
| 937 | uint32 buffer32; |
| 938 | stream_->ReadVarint32(&buffer32); // string size. |
| 939 | stream_->ReadString(&result, buffer32); |
| 940 | break; |
| 941 | } |
| 942 | case google::protobuf::Field_Kind_TYPE_BYTES: { |
| 943 | uint32 buffer32; |
| 944 | stream_->ReadVarint32(&buffer32); // bytes size. |
| 945 | stream_->ReadString(&result, buffer32); |
| 946 | break; |
| 947 | } |
| 948 | default: |
| 949 | break; |
| 950 | } |
| 951 | return result; |
| 952 | } |
| 953 | |
| 954 | // Field is a map if it is a repeated message and it has an option "map_type". |
| 955 | // TODO(skarvaje): Consider pre-computing the IsMap() into Field directly. |
| 956 | bool ProtoStreamObjectSource::IsMap( |
| 957 | const google::protobuf::Field& field) const { |
| 958 | const google::protobuf::Type* field_type = |
Feng Xiao | eee38b0 | 2015-08-22 18:25:48 -0700 | [diff] [blame] | 959 | typeinfo_->GetTypeByTypeUrl(field.type_url()); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 960 | |
| 961 | // TODO(xiaofeng): Unify option names. |
| 962 | return field.kind() == google::protobuf::Field_Kind_TYPE_MESSAGE && |
| 963 | (GetBoolOptionOrDefault(field_type->options(), |
| 964 | "google.protobuf.MessageOptions.map_entry", false) || |
| 965 | GetBoolOptionOrDefault(field_type->options(), "map_entry", false)); |
| 966 | } |
| 967 | |
| 968 | std::pair<int64, int32> ProtoStreamObjectSource::ReadSecondsAndNanos( |
| 969 | const google::protobuf::Type& type) const { |
| 970 | uint64 seconds = 0; |
| 971 | uint32 nanos = 0; |
| 972 | uint32 tag = 0; |
| 973 | int64 signed_seconds = 0; |
Jisi Liu | 46e8ff6 | 2015-10-05 11:59:43 -0700 | [diff] [blame] | 974 | int32 signed_nanos = 0; |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 975 | |
| 976 | for (tag = stream_->ReadTag(); tag != 0; tag = stream_->ReadTag()) { |
| 977 | const google::protobuf::Field* field = FindAndVerifyField(type, tag); |
| 978 | if (field == NULL) { |
| 979 | WireFormat::SkipField(stream_, tag, NULL); |
| 980 | continue; |
| 981 | } |
| 982 | // 'seconds' has field number of 1 and 'nanos' has field number 2 |
| 983 | // //google/protobuf/timestamp.proto & duration.proto |
| 984 | if (field->number() == 1) { |
| 985 | // read seconds |
| 986 | stream_->ReadVarint64(&seconds); |
| 987 | signed_seconds = bit_cast<int64>(seconds); |
| 988 | } else if (field->number() == 2) { |
| 989 | // read nanos |
| 990 | stream_->ReadVarint32(&nanos); |
| 991 | signed_nanos = bit_cast<int32>(nanos); |
| 992 | } |
| 993 | } |
| 994 | return std::pair<int64, int32>(signed_seconds, signed_nanos); |
| 995 | } |
| 996 | |
| 997 | namespace { |
| 998 | // TODO(skarvaje): Speed this up by not doing a linear scan. |
| 999 | const google::protobuf::Field* FindFieldByNumber( |
| 1000 | const google::protobuf::Type& type, int number) { |
| 1001 | for (int i = 0; i < type.fields_size(); ++i) { |
| 1002 | if (type.fields(i).number() == number) { |
| 1003 | return &type.fields(i); |
| 1004 | } |
| 1005 | } |
| 1006 | return NULL; |
| 1007 | } |
| 1008 | |
| 1009 | // TODO(skarvaje): Replace FieldDescriptor by implementing IsTypePackable() |
| 1010 | // using tech Field. |
| 1011 | bool IsPackable(const google::protobuf::Field& field) { |
| 1012 | return field.cardinality() == |
| 1013 | google::protobuf::Field_Cardinality_CARDINALITY_REPEATED && |
| 1014 | google::protobuf::FieldDescriptor::IsTypePackable( |
| 1015 | static_cast<google::protobuf::FieldDescriptor::Type>(field.kind())); |
| 1016 | } |
| 1017 | |
| 1018 | // TODO(skarvaje): Speed this up by not doing a linear scan. |
| 1019 | const google::protobuf::EnumValue* FindEnumValueByNumber( |
| 1020 | const google::protobuf::Enum& tech_enum, int number) { |
| 1021 | for (int i = 0; i < tech_enum.enumvalue_size(); ++i) { |
| 1022 | const google::protobuf::EnumValue& ev = tech_enum.enumvalue(i); |
| 1023 | if (ev.number() == number) { |
| 1024 | return &ev; |
| 1025 | } |
| 1026 | } |
| 1027 | return NULL; |
| 1028 | } |
| 1029 | |
| 1030 | // TODO(skarvaje): Look into optimizing this by not doing computation on |
| 1031 | // double. |
| 1032 | const string FormatNanos(uint32 nanos) { |
| 1033 | const char* format = |
| 1034 | (nanos % 1000 != 0) ? "%.9f" : (nanos % 1000000 != 0) ? "%.6f" : "%.3f"; |
| 1035 | string formatted = |
| 1036 | StringPrintf(format, static_cast<double>(nanos) / kNanosPerSecond); |
| 1037 | // remove the leading 0 before decimal. |
| 1038 | return formatted.substr(1); |
| 1039 | } |
| 1040 | } // namespace |
| 1041 | |
| 1042 | } // namespace converter |
| 1043 | } // namespace util |
| 1044 | } // namespace protobuf |
| 1045 | } // namespace google |