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#include "document_cache.h"
#include <stdexcept>
namespace InputXSLT {
DomDocumentCache::DomDocumentCache():
write_mutex_(),
map_() { }
DomDocumentCache::optional_item DomDocumentCache::get(const std::string& key) {
auto itemIter = this->map_.find(key);
if ( itemIter == this->map_.end() ) {
return optional_item(false, nullptr);
} else {
return optional_item(true, (*itemIter).second->getXalanDocument());
}
}
DomDocumentCache::optional_item DomDocumentCache::create(
const std::string& key,
xercesc::DOMDocument* document
) {
std::lock_guard<std::mutex> guard(this->write_mutex_);
auto result = this->map_.emplace(
std::make_pair(key, std::unique_ptr<item>(new item(document)))
);
if ( result.second ) {
return optional_item(true, (*(result.first)).second->getXalanDocument());
} else {
return optional_item(false, nullptr);
}
}
}
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