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/**
* Copyright (C) 2020-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/db/catalog/index_build_oplog_entry.h"
#include "mongo/bson/util/bson_extract.h"
#include "mongo/logv2/redaction.h"
#include "mongo/rpc/get_status_from_command_result.h"
namespace mongo {
StatusWith<IndexBuildOplogEntry> IndexBuildOplogEntry::parse(const repl::OplogEntry& entry) {
// Example 'o' field which takes the same form for all three oplog entries.
// {
// < "startIndexBuild" | "commitIndexBuild" | "abortIndexBuild" > : "coll",
// "indexBuildUUID" : <UUID>,
// "indexes" : [
// {
// "key" : {
// "x" : 1
// },
// "name" : "x_1",
// ...
// },
// {
// "key" : {
// "k" : 1
// },
// "name" : "k_1",
// ...
// }
// ],
// "cause" : <Object> // Only required for 'abortIndexBuild'.
// }
//
//
// Ensure the collection name is specified
invariant(entry.getOpType() == repl::OpTypeEnum::kCommand);
auto commandType = entry.getCommandType();
invariant(commandType == repl::OplogEntry::CommandType::kStartIndexBuild ||
commandType == repl::OplogEntry::CommandType::kCommitIndexBuild ||
commandType == repl::OplogEntry::CommandType::kAbortIndexBuild);
BSONObj obj = entry.getObject();
BSONElement first = obj.firstElement();
auto commandName = first.fieldNameStringData();
uassert(ErrorCodes::InvalidNamespace,
str::stream() << commandName << " value must be a string",
first.type() == mongo::String);
auto buildUUIDElem = obj.getField("indexBuildUUID");
if (buildUUIDElem.eoo()) {
return {ErrorCodes::BadValue, str::stream() << "Missing required field 'indexBuildUUID'"};
}
auto swBuildUUID = UUID::parse(buildUUIDElem);
if (!swBuildUUID.isOK()) {
return swBuildUUID.getStatus().withContext("Error parsing 'indexBuildUUID'");
}
auto indexesElem = obj.getField("indexes");
if (indexesElem.eoo()) {
return {ErrorCodes::BadValue, str::stream() << "Missing required field 'indexes'"};
}
if (indexesElem.type() != Array) {
return {ErrorCodes::BadValue,
str::stream() << "Field 'indexes' must be an array of index spec objects"};
}
std::vector<std::string> indexNames;
std::vector<BSONObj> indexSpecs;
for (auto& indexElem : indexesElem.Array()) {
if (!indexElem.isABSONObj()) {
return {ErrorCodes::BadValue,
str::stream() << "Element of 'indexes' must be an object"};
}
std::string indexName;
auto status = bsonExtractStringField(indexElem.Obj(), "name", &indexName);
if (!status.isOK()) {
return status.withContext("Error extracting 'name' from index spec");
}
indexNames.push_back(indexName);
indexSpecs.push_back(indexElem.Obj().getOwned());
}
// Get the reason this index build was aborted on the primary.
boost::optional<Status> cause;
if (repl::OplogEntry::CommandType::kAbortIndexBuild == commandType) {
auto causeElem = obj.getField("cause");
if (causeElem.eoo()) {
return {ErrorCodes::BadValue, "Missing required field 'cause'."};
}
if (causeElem.type() != Object) {
return {ErrorCodes::BadValue, "Field 'cause' must be an object."};
}
auto causeStatusObj = causeElem.Obj();
cause = getStatusFromCommandResult(causeStatusObj);
}
auto collUUID = entry.getUuid();
invariant(collUUID, str::stream() << redact(entry.toBSONForLogging()));
return IndexBuildOplogEntry{*collUUID,
commandType,
commandName.toString(),
swBuildUUID.getValue(),
indexNames,
indexSpecs,
cause};
}
} // namespace mongo
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