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/*
* This file is part of IPAACA, the
* "Incremental Processing Architecture
* for Artificial Conversational Agents".
*
* Copyright (c) 2009-2015 Social Cognitive Systems Group
* (formerly the Sociable Agents Group)
* CITEC, Bielefeld University
*
* http://opensource.cit-ec.de/projects/ipaaca/
* http://purl.org/net/ipaaca
*
* This file may be licensed under the terms of of the
* GNU Lesser General Public License Version 3 (the ``LGPL''),
* or (at your option) any later version.
*
* Software distributed under the License is distributed
* on an ``AS IS'' basis, WITHOUT WARRANTY OF ANY KIND, either
* express or implied. See the LGPL for the specific language
* governing rights and limitations.
*
* You should have received a copy of the LGPL along with this
* program. If not, go to http://www.gnu.org/licenses/lgpl.html
* or write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The development of this software was supported by the
* Excellence Cluster EXC 277 Cognitive Interaction Technology.
* The Excellence Cluster EXC 277 is a grant of the Deutsche
* Forschungsgemeinschaft (DFG) in the context of the German
* Excellence Initiative.
*/
#include <ipaaca/ipaaca.h>
#define VERBOSE_HANDLERS 0 // remove later
namespace ipaaca {
using namespace rsb;
using namespace rsb::filter;
using namespace rsb::converter;
using namespace rsb::patterns;
IPAACA_EXPORT std::ostream& operator<<(std::ostream& os, const IUPayloadUpdate& obj)//{{{
{
os << "PayloadUpdate(uid=" << obj.uid << ", revision=" << obj.revision;
os << ", writer_name=" << obj.writer_name << ", is_delta=" << (obj.is_delta?"True":"False");
os << ", new_items = {";
bool first = true;
for (auto& newit: obj.new_items) {
if (first) { first=false; } else { os << ", "; }
//os << "'" << it->first << "':'" << it->second << "'";
os << "'" << newit.first << "': " << newit.second;
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}
os << "}, keys_to_remove = [";
first = true;
for (std::vector<std::string>::const_iterator it=obj.keys_to_remove.begin(); it!=obj.keys_to_remove.end(); ++it) {
if (first) { first=false; } else { os << ", "; }
os << "'" << *it << "'";
}
os << "])";
return os;
}
//}}}
IPAACA_EXPORT std::ostream& operator<<(std::ostream& os, const IULinkUpdate& obj)//{{{
{
os << "LinkUpdate(uid=" << obj.uid << ", revision=" << obj.revision;
os << ", writer_name=" << obj.writer_name << ", is_delta=" << (obj.is_delta?"True":"False");
os << ", new_links = {";
bool first = true;
for (std::map<std::string, std::set<std::string> >::const_iterator it=obj.new_links.begin(); it!=obj.new_links.end(); ++it) {
if (first) { first=false; } else { os << ", "; }
os << "'" << it->first << "': [";
bool ffirst = true;
for (std::set<std::string>::const_iterator it2=it->second.begin(); it2!=it->second.end(); ++it2) {
if (ffirst) { ffirst=false; } else { os << ", "; }
os << "'" << *it2 << "'";
}
os << "]";
}
os << "}, links_to_remove = {";
first = true;
for (std::map<std::string, std::set<std::string> >::const_iterator it=obj.links_to_remove.begin(); it!=obj.links_to_remove.end(); ++it) {
if (first) { first=false; } else { os << ", "; }
os << "'" << it->first << "': [";
bool ffirst = true;
for (std::set<std::string>::const_iterator it2=it->second.begin(); it2!=it->second.end(); ++it2) {
if (ffirst) { ffirst=false; } else { os << ", "; }
os << "'" << *it2 << "'";
}
os << "]";
}
os << "})";
return os;
}
//}}}
// IUEventHandler//{{{
IPAACA_EXPORT IUEventHandler::IUEventHandler(IUEventHandlerFunction function, IUEventType event_mask, const std::string& category)
: _function(function), _event_mask(event_mask), _for_all_categories(false)
{
if (category=="") {
_for_all_categories = true;
} else {
_categories.insert(category);
}
}
IPAACA_EXPORT IUEventHandler::IUEventHandler(IUEventHandlerFunction function, IUEventType event_mask, const std::set<std::string>& categories)
: _function(function), _event_mask(event_mask), _for_all_categories(false)
{
if (categories.size()==0) {
_for_all_categories = true;
} else {
_categories = categories;
}
}
IPAACA_EXPORT void IUEventHandler::call(Buffer* buffer, boost::shared_ptr<IUInterface> iu, bool local, IUEventType event_type, const std::string& category)
{
if (_condition_met(event_type, category)) {
#if VERBOSE_HANDLERS == 1
std::cout << "[" << pthread_self() << " handler ENTER]" << std::endl;
#endif
_function(iu, event_type, local);
#if VERBOSE_HANDLERS == 1
std::cout << "[" << pthread_self() << " handler EXIT]" << std::endl;
#endif
}
}
//}}}
// Buffer//{{{
IPAACA_EXPORT void Buffer::_allocate_unique_name(const std::string& basename, const std::string& function) {
std::string uuid = ipaaca::generate_uuid_string();
_basename = basename;
_uuid = uuid.substr(0,8);
_unique_name = "/ipaaca/component/" + _basename + "ID" + _uuid + "/" + function;
}
IPAACA_EXPORT void Buffer::register_handler(IUEventHandlerFunction function, IUEventType event_mask, const std::set<std::string>& categories)
{
IPAACA_DEBUG("register_handler " << function << " " << event_mask << " " << categories)
IUEventHandler::ptr handler = IUEventHandler::ptr(new IUEventHandler(function, event_mask, categories));
_event_handlers.push_back(handler);
}
IPAACA_EXPORT void Buffer::register_handler(IUEventHandlerFunction function, IUEventType event_mask, const std::string& category)
{
IPAACA_DEBUG("register_handler " << function << " " << event_mask << " " << category)
IUEventHandler::ptr handler = IUEventHandler::ptr(new IUEventHandler(function, event_mask, category));
_event_handlers.push_back(handler);
}
IPAACA_EXPORT void Buffer::call_iu_event_handlers(boost::shared_ptr<IUInterface> iu, bool local, IUEventType event_type, const std::string& category)
{
//IPAACA_DEBUG("handling an event " << ipaaca::iu_event_type_to_str(event_type) << " for IU " << iu->uid())
for (std::vector<IUEventHandler::ptr>::iterator it = _event_handlers.begin(); it != _event_handlers.end(); ++it) {
(*it)->call(this, iu, local, event_type, category);
}
}
//}}}
// Callbacks for OutputBuffer//{{{
IPAACA_EXPORT CallbackIUPayloadUpdate::CallbackIUPayloadUpdate(Buffer* buffer): _buffer(buffer) { }
IPAACA_EXPORT CallbackIULinkUpdate::CallbackIULinkUpdate(Buffer* buffer): _buffer(buffer) { }
IPAACA_EXPORT CallbackIUCommission::CallbackIUCommission(Buffer* buffer): _buffer(buffer) { }
IPAACA_EXPORT CallbackIUResendRequest::CallbackIUResendRequest(Buffer* buffer): _buffer(buffer) { }
IPAACA_EXPORT boost::shared_ptr<int> CallbackIUPayloadUpdate::call(const std::string& methodName, boost::shared_ptr<IUPayloadUpdate> update)
{
IUInterface::ptr iui = _buffer->get(update->uid);
if (! iui) {
IPAACA_WARNING("Remote InBuffer tried to spuriously write non-existent IU " << update->uid)
return boost::shared_ptr<int>(new int(0));
}
IU::ptr iu = boost::static_pointer_cast<IU>(iui);
iu->_revision_lock.lock();
if ((update->revision != 0) && (update->revision != iu->_revision)) {
IPAACA_WARNING("Remote write operation failed because request was out of date; IU " << update->uid)
IPAACA_WARNING(" Referred-to revision was " << update->revision << " while local one is " << iu->_revision)
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->committed()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->retracted()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->committed()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->retracted()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
}
if (update->is_delta) {
// FIXME TODO this is an unsolved problem atm: deletions in a delta update are
// sent individually. We should have something like _internal_merge_and_remove
for (std::vector<std::string>::const_iterator it=update->keys_to_remove.begin(); it!=update->keys_to_remove.end(); ++it) {
iu->payload()._internal_remove(*it, update->writer_name); //_buffer->unique_name());
}
// but it is solved for pure merges:
iu->payload()._internal_merge(update->new_items, update->writer_name);
} else {
iu->payload()._internal_replace_all(update->new_items, update->writer_name); //_buffer->unique_name());
}
_buffer->call_iu_event_handlers(iu, true, IU_UPDATED, iu->category());
revision_t revision = iu->revision();
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(revision));
}
IPAACA_EXPORT boost::shared_ptr<int> CallbackIULinkUpdate::call(const std::string& methodName, boost::shared_ptr<IULinkUpdate> update)
{
IUInterface::ptr iui = _buffer->get(update->uid);
if (! iui) {
IPAACA_WARNING("Remote InBuffer tried to spuriously write non-existent IU " << update->uid)
return boost::shared_ptr<int>(new int(0));
}
IU::ptr iu = boost::static_pointer_cast<IU>(iui);
iu->_revision_lock.lock();
if ((update->revision != 0) && (update->revision != iu->_revision)) {
IPAACA_WARNING("Remote write operation failed because request was out of date; IU " << update->uid)
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->committed()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->retracted()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->committed()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->retracted()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
}
if (update->is_delta) {
iu->modify_links(update->new_links, update->links_to_remove, update->writer_name);
} else {
iu->set_links(update->new_links, update->writer_name);
}
_buffer->call_iu_event_handlers(iu, true, IU_LINKSUPDATED, iu->category());
revision_t revision = iu->revision();
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(revision));
}
IPAACA_EXPORT boost::shared_ptr<int> CallbackIUCommission::call(const std::string& methodName, boost::shared_ptr<protobuf::IUCommission> update)
{
IUInterface::ptr iui = _buffer->get(update->uid());
if (! iui) {
IPAACA_WARNING("Remote InBuffer tried to spuriously write non-existent IU " << update->uid())
return boost::shared_ptr<int>(new int(0));
}
IU::ptr iu = boost::static_pointer_cast<IU>(iui);
iu->_revision_lock.lock();
if ((update->revision() != 0) && (update->revision() != iu->_revision)) {
IPAACA_WARNING("Remote write operation failed because request was out of date; IU " << update->uid())
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->committed()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else if (iu->retracted()) {
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(0));
} else {
}
iu->_internal_commit(update->writer_name());
_buffer->call_iu_event_handlers(iu, true, IU_LINKSUPDATED, iu->category());
revision_t revision = iu->revision();
iu->_revision_lock.unlock();
return boost::shared_ptr<int>(new int(revision));
}
IPAACA_EXPORT boost::shared_ptr<int> CallbackIUResendRequest::call(const std::string& methodName, boost::shared_ptr<protobuf::IUResendRequest> update)
{
IUInterface::ptr iui = _buffer->get(update->uid());
if (! iui) {
IPAACA_WARNING("Remote InBuffer tried to spuriously write non-existent IU " << update->uid())
return boost::shared_ptr<int>(new int(0));
}
IU::ptr iu = boost::static_pointer_cast<IU>(iui);
if ((update->has_hidden_scope_name() == true)&&(update->hidden_scope_name().compare("") != 0)){
revision_t revision = iu->revision();
_buffer->_publish_iu_resend(iu, update->hidden_scope_name());
return boost::shared_ptr<int>(new int(revision));
} else {
revision_t revision = 0;
return boost::shared_ptr<int>(new int(revision));
}
}
//}}}
// OutputBuffer//{{{
IPAACA_EXPORT OutputBuffer::OutputBuffer(const std::string& basename, const std::string& channel)
:Buffer(basename, "OB")
{
_id_prefix = _basename + "-" + _uuid + "-IU-";
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_channel = (channel=="") ? __ipaaca_static_option_default_channel: channel;
_initialize_server();
}
IPAACA_EXPORT void OutputBuffer::_initialize_server()
{
_server = getFactory().createLocalServer( Scope( _unique_name ) );
_server->registerMethod("updatePayload", Server::CallbackPtr(new CallbackIUPayloadUpdate(this)));
_server->registerMethod("updateLinks", Server::CallbackPtr(new CallbackIULinkUpdate(this)));
_server->registerMethod("commit", Server::CallbackPtr(new CallbackIUCommission(this)));
_server->registerMethod("resendRequest", Server::CallbackPtr(new CallbackIUResendRequest(this)));
}
IPAACA_EXPORT OutputBuffer::ptr OutputBuffer::create(const std::string& basename)
{
Initializer::initialize_backend();
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return OutputBuffer::ptr(new OutputBuffer(basename));
}
IPAACA_EXPORT IUInterface::ptr OutputBuffer::get(const std::string& iu_uid)
{
IUStore::iterator it = _iu_store.find(iu_uid);
if (it==_iu_store.end()) return IUInterface::ptr();
return it->second;
}
IPAACA_EXPORT std::set<IUInterface::ptr> OutputBuffer::get_ius()
{
std::set<IUInterface::ptr> set;
for (IUStore::iterator it=_iu_store.begin(); it!=_iu_store.end(); ++it) set.insert(it->second);
return set;
}
IPAACA_EXPORT void OutputBuffer::_send_iu_link_update(IUInterface* iu, bool is_delta, revision_t revision, const LinkMap& new_links, const LinkMap& links_to_remove, const std::string& writer_name)
{
IULinkUpdate* lup = new ipaaca::IULinkUpdate();
Informer<ipaaca::IULinkUpdate>::DataPtr ldata(lup);
lup->uid = iu->uid();
lup->is_delta = is_delta;
lup->revision = revision;
lup->is_delta = true;
lup->new_links = new_links;
if (is_delta) lup->links_to_remove = links_to_remove;
if (writer_name=="") lup->writer_name = _unique_name;
else lup->writer_name = writer_name;
Informer<AnyType>::Ptr informer = _get_informer(iu->category());
informer->publish(ldata);
}
IPAACA_EXPORT void OutputBuffer::_send_iu_payload_update(IUInterface* iu, bool is_delta, revision_t revision, const std::map<std::string, PayloadDocumentEntry::ptr>& new_items, const std::vector<std::string>& keys_to_remove, const std::string& writer_name)
{
IUPayloadUpdate* pup = new ipaaca::IUPayloadUpdate();
Informer<ipaaca::IUPayloadUpdate>::DataPtr pdata(pup);
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pup->uid = iu->uid();
pup->is_delta = is_delta;
pup->revision = revision;
pup->new_items = new_items;
if (is_delta) pup->keys_to_remove = keys_to_remove;
if (writer_name=="") pup->writer_name = _unique_name;
else pup->writer_name = writer_name;
Informer<AnyType>::Ptr informer = _get_informer(iu->category());
informer->publish(pdata);
}
IPAACA_EXPORT void OutputBuffer::_send_iu_commission(IUInterface* iu, revision_t revision, const std::string& writer_name)
{
Informer<protobuf::IUCommission>::DataPtr data(new protobuf::IUCommission());
data->set_uid(iu->uid());
data->set_revision(revision);
if (writer_name=="") data->set_writer_name(_unique_name);
else data->set_writer_name(writer_name);
Informer<AnyType>::Ptr informer = _get_informer(iu->category());
informer->publish(data);
}
IPAACA_EXPORT void OutputBuffer::add(IU::ptr iu)
{
if (_iu_store.count(iu->uid()) > 0) {
throw IUPublishedError();
}
if (iu->is_published()) {
throw IUPublishedError();
} else if (iu->retracted()) {
throw IURetractedError();
}
if (iu->access_mode() != IU_ACCESS_MESSAGE) {
// (for Message-type IUs: do not actually store them)
_iu_store[iu->uid()] = iu;
}
iu->_associate_with_buffer(this);
_publish_iu(iu);
}
IPAACA_EXPORT void OutputBuffer::_publish_iu(IU::ptr iu)
{
Informer<AnyType>::Ptr informer = _get_informer(iu->_category);
Informer<ipaaca::IU>::DataPtr iu_data(iu);
informer->publish(iu_data);
}
IPAACA_EXPORT void OutputBuffer::_publish_iu_resend(IU::ptr iu, const std::string& hidden_scope_name)
{
Informer<AnyType>::Ptr informer = _get_informer(hidden_scope_name);
Informer<ipaaca::IU>::DataPtr iu_data(iu);
informer->publish(iu_data);
}
IPAACA_EXPORT Informer<AnyType>::Ptr OutputBuffer::_get_informer(const std::string& category)
{
if (_informer_store.count(category) > 0) {
return _informer_store[category];
} else {
//IPAACA_INFO("Creating new informer for category " << category << " on channel " << _channel)
std::string scope_string = "/ipaaca/channel/" + _channel + "/category/" + category;
IPAACA_INFO("Creating new informer for " << scope_string)
Informer<AnyType>::Ptr informer = getFactory().createInformer<AnyType> ( Scope(scope_string));
_informer_store[category] = informer;
return informer;
}
}
IPAACA_EXPORT boost::shared_ptr<IU> OutputBuffer::remove(const std::string& iu_uid)
{
IUStore::iterator it = _iu_store.find(iu_uid);
if (it == _iu_store.end()) {
IPAACA_WARNING("Removal of IU " << iu_uid << " requested, but not present in our OutputBuffer")
//throw IUNotFoundError();
}
IU::ptr iu = it->second;
_retract_iu(iu);
_iu_store.erase(iu_uid);
return iu;
}
IPAACA_EXPORT boost::shared_ptr<IU> OutputBuffer::remove(IU::ptr iu)
{
return remove(iu->uid()); // to make sure it is in the store
}
IPAACA_EXPORT void OutputBuffer::_retract_iu(IU::ptr iu)
{
if (iu->_retracted) return; // ignore subsequent retractions
iu->_retracted = true;
Informer<protobuf::IURetraction>::DataPtr data(new protobuf::IURetraction());
data->set_uid(iu->uid());
data->set_revision(iu->revision());
Informer<AnyType>::Ptr informer = _get_informer(iu->category());
informer->publish(data);
}
IPAACA_EXPORT void OutputBuffer::_retract_all_internal()
{
for (IUStore::iterator it=_iu_store.begin(); it!=_iu_store.end(); ++it) {
if (!(it->second->_retracted)) {
_retract_iu(it->second);
}
}
}
IPAACA_EXPORT OutputBuffer::~OutputBuffer()
{
_retract_all_internal();
}
//}}}
// InputBuffer//{{{
IPAACA_EXPORT InputBuffer::InputBuffer(const BufferConfiguration& bufferconfiguration)
:Buffer(bufferconfiguration.get_basename(), "IB")
{
_channel = bufferconfiguration.get_channel();
for (std::vector<std::string>::const_iterator it=bufferconfiguration.get_category_interests().begin(); it!=bufferconfiguration.get_category_interests().end(); ++it) {
_create_category_listener_if_needed(*it);
}
_create_category_listener_if_needed(_uuid);
triggerResend = false;
}
IPAACA_EXPORT InputBuffer::InputBuffer(const std::string& basename, const std::set<std::string>& category_interests)
:Buffer(basename, "IB")
{
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_channel = __ipaaca_static_option_default_channel;
for (std::set<std::string>::const_iterator it=category_interests.begin(); it!=category_interests.end(); ++it) {
_create_category_listener_if_needed(*it);
}
_create_category_listener_if_needed(_uuid);
triggerResend = false;
}
IPAACA_EXPORT InputBuffer::InputBuffer(const std::string& basename, const std::vector<std::string>& category_interests)
:Buffer(basename, "IB")
{
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_channel = __ipaaca_static_option_default_channel;
for (std::vector<std::string>::const_iterator it=category_interests.begin(); it!=category_interests.end(); ++it) {
_create_category_listener_if_needed(*it);
}
_create_category_listener_if_needed(_uuid);
triggerResend = false;
}
IPAACA_EXPORT InputBuffer::InputBuffer(const std::string& basename, const std::string& category_interest1)
:Buffer(basename, "IB")
{
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_channel = __ipaaca_static_option_default_channel;
_create_category_listener_if_needed(category_interest1);
_create_category_listener_if_needed(_uuid);
triggerResend = false;
}
IPAACA_EXPORT InputBuffer::InputBuffer(const std::string& basename, const std::string& category_interest1, const std::string& category_interest2)
:Buffer(basename, "IB")
{
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_channel = __ipaaca_static_option_default_channel;
_create_category_listener_if_needed(category_interest1);
_create_category_listener_if_needed(category_interest2);
_create_category_listener_if_needed(_uuid);
triggerResend = false;
}
IPAACA_EXPORT InputBuffer::InputBuffer(const std::string& basename, const std::string& category_interest1, const std::string& category_interest2, const std::string& category_interest3)
:Buffer(basename, "IB")
{
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_channel = __ipaaca_static_option_default_channel;
_create_category_listener_if_needed(category_interest1);
_create_category_listener_if_needed(category_interest2);
_create_category_listener_if_needed(category_interest3);
_create_category_listener_if_needed(_uuid);
triggerResend = false;
}
IPAACA_EXPORT InputBuffer::InputBuffer(const std::string& basename, const std::string& category_interest1, const std::string& category_interest2, const std::string& category_interest3, const std::string& category_interest4)
:Buffer(basename, "IB")
{
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_channel = __ipaaca_static_option_default_channel;
_create_category_listener_if_needed(category_interest1);
_create_category_listener_if_needed(category_interest2);
_create_category_listener_if_needed(category_interest3);
_create_category_listener_if_needed(category_interest4);
_create_category_listener_if_needed(_uuid);
triggerResend = false;
}
IPAACA_EXPORT InputBuffer::ptr InputBuffer::create(const BufferConfiguration& bufferconfiguration)
{
Initializer::initialize_backend();
return InputBuffer::ptr(new InputBuffer(bufferconfiguration));
}
IPAACA_EXPORT InputBuffer::ptr InputBuffer::create(const std::string& basename, const std::set<std::string>& category_interests)
{
Initializer::initialize_backend();
return InputBuffer::ptr(new InputBuffer(basename, category_interests));
}
IPAACA_EXPORT InputBuffer::ptr InputBuffer::create(const std::string& basename, const std::vector<std::string>& category_interests)
{
Initializer::initialize_backend();
return InputBuffer::ptr(new InputBuffer(basename, category_interests));
}
IPAACA_EXPORT InputBuffer::ptr InputBuffer::create(const std::string& basename, const std::string& category_interest1)
{
Initializer::initialize_backend();
return InputBuffer::ptr(new InputBuffer(basename, category_interest1));
}
IPAACA_EXPORT InputBuffer::ptr InputBuffer::create(const std::string& basename, const std::string& category_interest1, const std::string& category_interest2)
{
Initializer::initialize_backend();
return InputBuffer::ptr(new InputBuffer(basename, category_interest1, category_interest2));
}
IPAACA_EXPORT InputBuffer::ptr InputBuffer::create(const std::string& basename, const std::string& category_interest1, const std::string& category_interest2, const std::string& category_interest3)
{
Initializer::initialize_backend();
return InputBuffer::ptr(new InputBuffer(basename, category_interest1, category_interest2, category_interest3));
}
IPAACA_EXPORT InputBuffer::ptr InputBuffer::create(const std::string& basename, const std::string& category_interest1, const std::string& category_interest2, const std::string& category_interest3, const std::string& category_interest4)
{
Initializer::initialize_backend();
return InputBuffer::ptr(new InputBuffer(basename, category_interest1, category_interest2, category_interest3, category_interest4));
}
IPAACA_EXPORT void InputBuffer::set_resend(bool resendActive)
{
triggerResend = resendActive;
}
IPAACA_EXPORT bool InputBuffer::get_resend()
{
return triggerResend;
}
IPAACA_EXPORT IUInterface::ptr InputBuffer::get(const std::string& iu_uid)
{
RemotePushIUStore::iterator it = _iu_store.find(iu_uid);
if (it==_iu_store.end()) return IUInterface::ptr();
return it->second;
}
IPAACA_EXPORT std::set<IUInterface::ptr> InputBuffer::get_ius()
{
std::set<IUInterface::ptr> set;
for (RemotePushIUStore::iterator it=_iu_store.begin(); it!=_iu_store.end(); ++it) set.insert(it->second);
return set;
}
IPAACA_EXPORT RemoteServerPtr InputBuffer::_get_remote_server(const std::string& unique_server_name)
{
std::map<std::string, RemoteServerPtr>::iterator it = _remote_server_store.find(unique_server_name);
if (it!=_remote_server_store.end()) return it->second;
RemoteServerPtr remote_server = getFactory().createRemoteServer(Scope(unique_server_name));
_remote_server_store[unique_server_name] = remote_server;
return remote_server;
}
IPAACA_EXPORT ListenerPtr InputBuffer::_create_category_listener_if_needed(const std::string& category)
{
std::map<std::string, ListenerPtr>::iterator it = _listener_store.find(category);
if (it!=_listener_store.end()) {
return it->second;
}
std::string scope_string = "/ipaaca/channel/" + _channel + "/category/" + category;
IPAACA_INFO("Creating new listener for " << scope_string)
ListenerPtr listener = getFactory().createListener( Scope(scope_string) );
HandlerPtr event_handler = HandlerPtr(
new EventFunctionHandler(
boost::bind(&InputBuffer::_handle_iu_events, this, _1)
)
);
listener->addHandler(event_handler);
_listener_store[category] = listener;
return listener;
}
IPAACA_EXPORT void InputBuffer::_trigger_resend_request(EventPtr event) {
if (!triggerResend) return;
std::string type = event->getType();
std::string uid = "";
std::string writerName = "";
if (type == "ipaaca::IUPayloadUpdate") {
boost::shared_ptr<IUPayloadUpdate> update = boost::static_pointer_cast<IUPayloadUpdate>(event->getData());
uid = update->uid;
writerName = update->writer_name;
} else if (type == "ipaaca::IULinkUpdate") {
boost::shared_ptr<IULinkUpdate> update = boost::static_pointer_cast<IULinkUpdate>(event->getData());
uid = update->uid;
writerName = update->writer_name;
} else if (type == "ipaaca::protobuf::IUCommission") {
boost::shared_ptr<protobuf::IUCommission> update = boost::static_pointer_cast<protobuf::IUCommission>(event->getData());
uid = update->uid();
writerName = update->writer_name();
} else {
IPAACA_ERROR("_trigger_resend_request: called for unhandled event type " << type)
return;
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}
if (!writerName.empty()) {
RemoteServerPtr server = _get_remote_server(writerName);
if (!uid.empty()) {
boost::shared_ptr<protobuf::IUResendRequest> update = boost::shared_ptr<protobuf::IUResendRequest>(new protobuf::IUResendRequest());
update->set_uid(uid);
update->set_hidden_scope_name(_uuid);
boost::shared_ptr<int> result = server->call<int>("resendRequest", update, IPAACA_REMOTE_SERVER_TIMEOUT);
if (*result == 0) {
throw IUResendRequestFailedError();
}
}
}
}
IPAACA_EXPORT void InputBuffer::_handle_iu_events(EventPtr event)
{
std::string type = event->getType();
if (type == "ipaaca::RemotePushIU") {
boost::shared_ptr<RemotePushIU> iu = boost::static_pointer_cast<RemotePushIU>(event->getData());
if (_iu_store.count(iu->category()) > 0) {
// already got the IU... ignore
} else {
_iu_store[iu->uid()] = iu;
iu->_set_buffer(this);
call_iu_event_handlers(iu, false, IU_ADDED, iu->category() );
}
} else if (type == "ipaaca::RemoteMessage") {
boost::shared_ptr<RemoteMessage> iu = boost::static_pointer_cast<RemoteMessage>(event->getData());
call_iu_event_handlers(iu, false, IU_MESSAGE, iu->category() );
} else {
RemotePushIUStore::iterator it;
if (type == "ipaaca::IUPayloadUpdate") {
boost::shared_ptr<IUPayloadUpdate> update = boost::static_pointer_cast<IUPayloadUpdate>(event->getData());
if (update->writer_name == _unique_name) {
return;
}
it = _iu_store.find(update->uid);
if (it == _iu_store.end()) {
_trigger_resend_request(event);
IPAACA_INFO("UPDATED message for an IU that we did not fully receive before")
return;
}
it->second->_apply_update(update);
call_iu_event_handlers(it->second, false, IU_UPDATED, it->second->category() );
} else if (type == "ipaaca::IULinkUpdate") {
boost::shared_ptr<IULinkUpdate> update = boost::static_pointer_cast<IULinkUpdate>(event->getData());
if (update->writer_name == _unique_name) {
return;
}
it = _iu_store.find(update->uid);
if (it == _iu_store.end()) {
_trigger_resend_request(event);
IPAACA_INFO("LINKSUPDATED message for an IU that we did not fully receive before")
return;
}
it->second->_apply_link_update(update);
call_iu_event_handlers(it->second, false, IU_LINKSUPDATED, it->second->category() );
} else if (type == "ipaaca::protobuf::IUCommission") {
boost::shared_ptr<protobuf::IUCommission> update = boost::static_pointer_cast<protobuf::IUCommission>(event->getData());
if (update->writer_name() == _unique_name) {
return;
}
it = _iu_store.find(update->uid());
if (it == _iu_store.end()) {
_trigger_resend_request(event);
IPAACA_INFO("COMMITTED message for an IU that we did not fully receive before")
return;
}
it->second->_apply_commission();
it->second->_revision = update->revision();
call_iu_event_handlers(it->second, false, IU_COMMITTED, it->second->category() );
} else if (type == "ipaaca::protobuf::IURetraction") {
boost::shared_ptr<protobuf::IURetraction> update = boost::static_pointer_cast<protobuf::IURetraction>(event->getData());
it = _iu_store.find(update->uid());
if (it == _iu_store.end()) {
IPAACA_INFO("Ignoring RETRACTED message for an IU that we did not fully receive before")
return;
}
it->second->_revision = update->revision();
it->second->_apply_retraction();
auto final_iu_ref = it->second;
////// remove from InputBuffer? FIXME: unclear issue - resolve in ipaaca3
////_iu_store.erase(it->first);
// and call the handler. IU reference is still valid for this call, even if removed from buffer.
call_iu_event_handlers(final_iu_ref, false, IU_RETRACTED, it->second->category() );
//
} else {
IPAACA_WARNING("(Unhandled Event type " << type << " !)");
return;
}
}
}
//}}}
} // of namespace ipaaca