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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "simplemessagehandler.h"
#include "persistenceutil.h"
#include "testandsethelper.h"
#include <vespa/persistence/spi/persistenceprovider.h>
#include <vespa/persistence/spi/docentry.h>
#include <vespa/storageapi/message/bucket.h>
#include <vespa/document/base/exceptions.h>
#include <vespa/document/fieldset/fieldsetrepo.h>
#include <vespa/log/log.h>
LOG_SETUP(".persistence.simplemessagehandler");
using vespalib::make_string_short::fmt;
using to_str = vespalib::string;
namespace storage {
namespace {
spi::ReadConsistency
api_read_consistency_to_spi(api::InternalReadConsistency consistency) noexcept {
switch (consistency) {
case api::InternalReadConsistency::Strong:
return spi::ReadConsistency::STRONG;
case api::InternalReadConsistency::Weak:
return spi::ReadConsistency::WEAK;
default:
abort();
}
}
document::FieldSet::SP
getFieldSet(const document::FieldSetRepo & repo, vespalib::stringref name, MessageTracker & tracker) {
try {
return repo.getFieldSet(name);
} catch (document::FieldNotFoundException & e) {
tracker.fail(storage::api::ReturnCode::ILLEGAL_PARAMETERS,
fmt("Field %s in fieldset %s not found in document", e.getFieldName().c_str(), to_str(name).c_str()));
} catch (const vespalib::Exception & e) {
tracker.fail(storage::api::ReturnCode::ILLEGAL_PARAMETERS,
fmt("Failed parsing fieldset %s with : %s", to_str(name).c_str(), e.getMessage().c_str()));
}
return document::FieldSet::SP();
}
}
SimpleMessageHandler::SimpleMessageHandler(const PersistenceUtil& env,
spi::PersistenceProvider& spi,
const document::BucketIdFactory& bucket_id_factory)
: _env(env),
_spi(spi),
_bucket_id_factory(bucket_id_factory)
{
}
MessageTracker::UP
SimpleMessageHandler::handle_conditional_get(api::GetCommand& cmd, MessageTracker::UP tracker) const
{
if (cmd.getFieldSet() == document::NoFields::NAME) {
TestAndSetHelper tas_helper(_env, _spi, _bucket_id_factory, cmd.condition(),
cmd.getBucket(), cmd.getDocumentId(), nullptr);
auto result = tas_helper.fetch_and_match_raw(tracker->context());
tracker->setReply(std::make_shared<api::GetReply>(cmd, nullptr, result.timestamp, false,
result.is_tombstone(), result.is_match()));
} else {
tracker->fail(api::ReturnCode::ILLEGAL_PARAMETERS, "Conditional Get operations must be metadata-only");
}
return tracker;
}
MessageTracker::UP
SimpleMessageHandler::handleGet(api::GetCommand& cmd, MessageTracker::UP tracker) const
{
auto& metrics = _env._metrics.get;
tracker->setMetric(metrics);
metrics.request_size.addValue(cmd.getApproxByteSize());
if (cmd.has_condition()) {
return handle_conditional_get(cmd, std::move(tracker));
}
auto fieldSet = getFieldSet(_env.getFieldSetRepo(), cmd.getFieldSet(), *tracker);
if (!fieldSet) {
return tracker;
}
tracker->context().setReadConsistency(api_read_consistency_to_spi(cmd.internal_read_consistency()));
spi::GetResult result = _spi.get(_env.getBucket(cmd.getDocumentId(), cmd.getBucket()),
*fieldSet, cmd.getDocumentId(), tracker->context());
if (tracker->checkForError(result)) {
if (!result.hasDocument() && (document::FieldSet::Type::NONE != fieldSet->getType())) {
metrics.notFound.inc();
}
tracker->setReply(std::make_shared<api::GetReply>(cmd, result.getDocumentPtr(), result.getTimestamp(),
false, result.is_tombstone(), false));
}
return tracker;
}
MessageTracker::UP
SimpleMessageHandler::handleGetIter(GetIterCommand& cmd, MessageTracker::UP tracker) const
{
tracker->setMetric(_env._metrics.visit);
spi::IterateResult result(_spi.iterate(cmd.getIteratorId(), cmd.getMaxByteSize()));
if (tracker->checkForError(result)) {
auto reply = std::make_shared<GetIterReply>(cmd);
reply->getEntries() = result.steal_entries();
_env._metrics.visit.documentsPerIterate.addValue(reply->getEntries().size());
if (result.isCompleted()) {
reply->setCompleted();
}
tracker->setReply(reply);
}
return tracker;
}
MessageTracker::UP
SimpleMessageHandler::handleCreateIterator(CreateIteratorCommand& cmd, MessageTracker::UP tracker) const
{
tracker->setMetric(_env._metrics.createIterator);
auto fieldSet = getFieldSet(_env.getFieldSetRepo(), cmd.getFields(), *tracker);
if ( ! fieldSet) { return tracker; }
tracker->context().setReadConsistency(cmd.getReadConsistency());
spi::CreateIteratorResult result(_spi.createIterator(
spi::Bucket(cmd.getBucket()),
std::move(fieldSet), cmd.getSelection(), cmd.getIncludedVersions(), tracker->context()));
if (tracker->checkForError(result)) {
tracker->setReply(std::make_shared<CreateIteratorReply>(cmd, spi::IteratorId(result.getIteratorId())));
}
return tracker;
}
} // storage
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