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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "routablerepository.h"
#include <vespa/document/util/stringutil.h>
#include <sstream>
#include <algorithm>
#include <vespa/log/log.h>
LOG_SETUP(".routablerepository");
namespace documentapi {
RoutableRepository::VersionMap::VersionMap() :
_factoryVersions()
{ }
bool
RoutableRepository::VersionMap::putFactory(const vespalib::VersionSpecification &version, IRoutableFactory::SP factory)
{
bool ret = _factoryVersions.find(version) != _factoryVersions.end();
_factoryVersions[version] = factory;
return ret;
}
IRoutableFactory::SP
RoutableRepository::VersionMap::getFactory(const vespalib::Version &version) const
{
const vespalib::VersionSpecification versionSpec{version.getMajor(), version.getMinor(), version.getMicro()};
std::vector< std::pair<vespalib::VersionSpecification, IRoutableFactory::SP> > candidates;
for (auto & entry : _factoryVersions) {
if (entry.first.compareTo(versionSpec) <= 0) {
candidates.push_back(std::make_pair(entry.first, entry.second));
}
}
if (candidates.empty()) {
return IRoutableFactory::SP();
}
return std::max_element(candidates.begin(), candidates.end(),
[](auto & lhs, auto & rhs) { return lhs.first.compareTo(rhs.first) <= 0; })->second;
}
RoutableRepository::RoutableRepository() :
_lock(),
_factoryTypes(),
_cache()
{
}
mbus::Routable::UP
RoutableRepository::decode(const vespalib::Version &version, mbus::BlobRef data) const
{
if (data.size() == 0) {
LOG(error, "Received empty byte array for deserialization.");
return mbus::Routable::UP();
}
document::ByteBuffer in(data.data(), data.size());
int type;
in.getIntNetwork(type);
IRoutableFactory::SP factory = getFactory(version, type);
if (!factory) {
LOG(error, "No routable factory found for routable type %d (version %s).",
type, version.toString().c_str());
return mbus::Routable::UP();
}
mbus::Routable::UP ret = factory->decode(in);
if (!ret) {
LOG(error, "Routable factory failed to deserialize routable of type %d (version %s).",
type, version.toString().c_str());
std::ostringstream ost;
document::StringUtil::printAsHex(ost, data.data(), data.size());
LOG(error, "%s", ost.str().c_str());
return mbus::Routable::UP();
}
return ret;
}
mbus::Blob
RoutableRepository::encode(const vespalib::Version &version, const mbus::Routable &obj) const
{
uint32_t type = obj.getType();
IRoutableFactory::SP factory = getFactory(version, type);
if (!factory) {
LOG(error, "No routable factory found for routable type %d (version %s).",
type, version.toString().c_str());
return mbus::Blob(0);
}
vespalib::GrowableByteBuffer out;
out.putInt(obj.getType());
if (!factory->encode(obj, out)) {
LOG(error, "Routable factory failed to serialize routable of type %d (version %s).",
type, version.toString().c_str());
return mbus::Blob(0);
}
mbus::Blob ret(out.position());
memcpy(ret.data(), out.getBuffer(), out.position());
return ret;
}
void
RoutableRepository::putFactory(const vespalib::VersionSpecification &version,
uint32_t type, IRoutableFactory::SP factory)
{
std::lock_guard guard(_lock);
if (_factoryTypes[type].putFactory(version, factory)) {
_cache.clear();
}
}
IRoutableFactory::SP
RoutableRepository::getFactory(const vespalib::Version &version, uint32_t type) const
{
std::lock_guard guard(_lock);
CacheKey cacheKey(version, type);
FactoryCache::const_iterator cit = _cache.find(cacheKey);
if (cit != _cache.end()) {
return cit->second;
}
TypeMap::const_iterator vit = _factoryTypes.find(type);
if (vit == _factoryTypes.end()) {
return IRoutableFactory::SP();
}
IRoutableFactory::SP factory = vit->second.getFactory(version);
if (!factory) {
return IRoutableFactory::SP();
}
_cache[cacheKey] = factory;
return factory;
}
uint32_t
RoutableRepository::getRoutableTypes(const vespalib::Version &version, std::vector<uint32_t> &out) const
{
std::lock_guard guard(_lock);
for (const auto & type : _factoryTypes) {
if (type.second.getFactory(version)) {
out.push_back(type.first);
}
}
return _factoryTypes.size();
}
}
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