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%%============================================================================== |
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%% Copyright 2014 Erlang Solutions Ltd. |
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%% |
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%% Licensed under the Apache License, Version 2.0 (the "License"); |
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%% you may not use this file except in compliance with the License. |
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%% You may obtain a copy of the License at |
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%% |
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%% http://www.apache.org/licenses/LICENSE-2.0 |
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%% |
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%% Unless required by applicable law or agreed to in writing, software |
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%% distributed under the License is distributed on an "AS IS" BASIS, |
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%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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%% See the License for the specific language governing permissions and |
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%% limitations under the License. |
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%%============================================================================== |
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-module(mongoose_api_xml). |
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-behaviour(mongoose_api_format). |
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-export([serialize/1, deserialize/1]). |
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-include("mongoose.hrl"). |
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-include_lib("exml/include/exml.hrl"). |
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%%-------------------------------------------------------------------- |
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%% mongoose_api_format callbacks |
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%%-------------------------------------------------------------------- |
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serialize(Data) -> |
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:-( |
do_serialize(Data). |
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deserialize(IOList) -> |
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:-( |
{ok, ParsedXML} = exml:parse(iolist_to_binary([IOList])), |
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:-( |
ParsedXML. |
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%%-------------------------------------------------------------------- |
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%% internal functions |
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%%-------------------------------------------------------------------- |
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do_serialize(Data) -> |
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:-( |
exml:to_iolist(prepare_xmlel(Data)). |
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prepare_xmlel(List) when is_list(List) -> |
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:-( |
prepare_xmlel({<<"list">>, List}); |
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prepare_xmlel({ElementName, List}) when is_list(List) -> |
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:-( |
{Attrs, Children} = lists:partition(fun is_attribute/1, List), |
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:-( |
#xmlel{name = to_iolist_compliant(ElementName), |
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:-( |
attrs = [prepare_xmlel(Attr) || Attr <- Attrs], |
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:-( |
children = [prepare_xmlel(Child) || Child <- Children]}; |
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prepare_xmlel({Key, Value}) -> |
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:-( |
{to_iolist_compliant(Key), to_iolist_compliant(Value)}; |
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prepare_xmlel(Other) -> |
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:-( |
#xmlel{name = to_iolist_compliant(Other)}. |
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is_attribute({_, List}) when is_list(List) -> |
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:-( |
false; |
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is_attribute({_, _}) -> |
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:-( |
true; |
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is_attribute(_) -> |
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:-( |
false. |
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to_iolist_compliant(Atom) when is_atom(Atom) -> |
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:-( |
atom_to_binary(Atom, utf8); |
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to_iolist_compliant(Int) when is_integer(Int) -> |
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:-( |
integer_to_binary(Int); |
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to_iolist_compliant(Other) -> |
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:-( |
Other. |