xlnt/source/serialization/relationship_serializer.cpp
2015-11-03 18:26:33 -05:00

89 lines
2.4 KiB
C++

#include <xlnt/serialization/relationship_serializer.hpp>
#include <xlnt/packaging/relationship.hpp>
#include <xlnt/packaging/zip_file.hpp>
#include <xlnt/serialization/xml_document.hpp>
#include <xlnt/serialization/xml_node.hpp>
#include "detail/constants.hpp"
namespace {
std::string make_rels_name(const std::string &target)
{
const char sep = '/';
if (target.empty() || target.back() == sep)
{
return target + "_rels/.rels";
}
auto sep_pos = target.find_last_of(sep);
auto first_part = target.substr(0, sep_pos + 1);
auto last_part = target.substr(sep_pos + 1);
return first_part + "_rels/" + last_part + ".rels";
}
}
namespace xlnt {
relationship_serializer::relationship_serializer(zip_file &archive) : archive_(archive)
{
}
std::vector<relationship> relationship_serializer::read_relationships(const std::string &target)
{
xml_document xml;
xml.from_string(archive_.read(make_rels_name(target)));
auto root_node = xml.get_child("Relationships");
std::vector<relationship> relationships;
for (auto relationship_node : root_node.get_children())
{
if (relationship_node.get_name() != "Relationship")
{
continue;
}
std::string id = relationship_node.get_attribute("Id");
std::string type = relationship_node.get_attribute("Type");
std::string rel_target = relationship_node.get_attribute("Target");
relationships.push_back(xlnt::relationship(type, id, rel_target));
}
return relationships;
}
bool relationship_serializer::write_relationships(const std::vector<relationship> &relationships,
const std::string &target)
{
xml_document xml;
auto root_node = xml.add_child("Relationships");
xml.add_namespace("", constants::Namespace("relationships"));
for (const auto &relationship : relationships)
{
auto relationship_node = root_node.add_child("Relationship");
relationship_node.add_attribute("Id", relationship.get_id());
relationship_node.add_attribute("Target", relationship.get_target_uri());
relationship_node.add_attribute("Type", relationship.get_type_string());
if (relationship.get_target_mode() == target_mode::external)
{
relationship_node.add_attribute("TargetMode", "External");
}
}
archive_.writestr(make_rels_name(target), xml.to_string());
return true;
}
}