/**
* Stores a message before it has been enqueued
* (enqueueing automatically stores the message so this is
* only required if storage is required prior to that
* point).
*/
void
MessageStorePlugin::stage(const boost::intrusive_ptr<broker::PersistableMessage>& msg)
{
if (msg->getPersistenceId() == 0 && !msg->isContentReleased()) {
provider->second->stage(msg);
}
}
/**
* Appends content to a previously staged message
*/
void
MessageStorePlugin::appendContent
(const boost::intrusive_ptr<const broker::PersistableMessage>& msg,
const std::string& data)
{
if (msg->getPersistenceId())
provider->second->appendContent(msg, data);
else
THROW_STORE_EXCEPTION("Cannot append content. Message not known to store!");
}
/**
* Loads (a section) of content data for the specified
* message (previously stored through a call to stage or
* enqueue) into data. The offset refers to the content
* only (i.e. an offset of 0 implies that the start of the
* content should be loaded, not the headers or related
* meta-data).
*/
void
MessageStorePlugin::loadContent(const broker::PersistableQueue& queue,
const boost::intrusive_ptr<const broker::PersistableMessage>& msg,
std::string& data,
uint64_t offset,
uint32_t length)
{
if (msg->getPersistenceId())
provider->second->loadContent(queue, msg, data, offset, length);
else
THROW_STORE_EXCEPTION("Cannot load content. Message not known to store!");
}