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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "rpcservice.h"
#include "rpcnetwork.h"
namespace mbus {
RPCService::RPCService(const Mirror &mirror,
const string &pattern) :
_mirror(mirror),
_pattern(pattern),
_addressIdx(random()),
_addressGen(0),
_addressList()
{ }
RPCService::~RPCService() {}
RPCServiceAddress::UP
RPCService::resolve()
{
if (_pattern.find("tcp/") == 0) {
size_t pos = _pattern.find_last_of('/');
if (pos != string::npos && pos < _pattern.size() - 1) {
RPCServiceAddress::UP ret(new RPCServiceAddress(
_pattern,
_pattern.substr(0, pos)));
if (!ret->isMalformed()) {
return ret;
}
}
} else {
if (_addressGen != _mirror.updates()) {
_addressGen = _mirror.updates();
_addressList = _mirror.lookup(_pattern);
}
if (!_addressList.empty()) {
_addressIdx = (_addressIdx + 1) % _addressList.size();
const AddressList::value_type &entry = _addressList[_addressIdx];
return RPCServiceAddress::UP(new RPCServiceAddress(
entry.first,
entry.second));
}
}
return RPCServiceAddress::UP();
}
} // namespace mbus
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