forked from fangq/jsonlab
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savebj.m
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savebj.m
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function output = savebj(rootname, obj, varargin)
%
% bjd=savebj(obj)
% or
% bjd=savebj(rootname,obj,filename)
% bjd=savebj(rootname,obj,opt)
% bjd=savebj(rootname,obj,'param1',value1,'param2',value2,...)
%
% Convert a MATLAB object (cell, struct, array, table, map, handles ...)
% into a Binary JData (BJData v1 Draft-2), Universal Binary JSON (UBJSON,
% Draft-12) or a MessagePack binary stream
%
% author: Qianqian Fang (q.fang <at> neu.edu)
% initially created on 2013/08/17
%
% By default, this function creates BJD-compliant output. The BJD
% specification is largely similar to UBJSON, with additional data types
% including uint16(u), uint32(m), uint64(M) and half-precision float (h).
% Starting from BJD Draft-2 (JSONLab 3.0 beta or later), all integer and
% floating-point numbers are stored in Little-Endian as opposed to
% Big-Endian form as in BJD Draft-1/UBJSON Draft-12 (JSONLab 2.1 or older)
%
% Format specifications:
% Binary JData (BJD): https://github.com/NeuroJSON/bjdata
% UBJSON: https://github.com/ubjson/universal-binary-json
% MessagePack: https://github.com/msgpack/msgpack
%
% input:
% rootname: the name of the root-object, when set to '', the root name
% is ignored, however, when opt.ForceRootName is set to 1 (see below),
% the MATLAB variable name will be used as the root name.
% obj: a MATLAB object (array, cell, cell array, struct, struct array,
% class instance)
% filename: a string for the file name to save the output UBJSON data
% opt: a struct for additional options, ignore to use default values.
% opt can have the following fields (first in [.|.] is the default)
%
% FileName [''|string]: a file name to save the output JSON data
% ArrayToStruct[0|1]: when set to 0, savebj outputs 1D/2D
% array in JSON array format; if sets to 1, an
% array will be shown as a struct with fields
% "_ArrayType_", "_ArraySize_" and "_ArrayData_"; for
% sparse arrays, the non-zero elements will be
% saved to "_ArrayData_" field in triplet-format i.e.
% (ix,iy,val) and "_ArrayIsSparse_":true will be added
% with a value of 1; for a complex array, the
% "_ArrayData_" array will include two rows
% (4 for sparse) to record the real and imaginary
% parts, and also "_ArrayIsComplex_":true is added.
% Other annotations include "_ArrayShape_" and
% "_ArrayOrder_", "_ArrayZipLevel_" etc.
% NestArray [0|1]: If set to 1, use nested array constructs
% to store N-dimensional arrays (compatible with
% UBJSON specification Draft 12); if set to 0,
% use the JData (v0.5) optimized N-D array header;
% NestArray is automatically set to 1 when
% MessagePack is set to 1
% ParseLogical [1|0]: if this is set to 1, logical array elem
% will use true/false rather than 1/0.
% SingletArray [0|1]: if this is set to 1, arrays with a single
% numerical element will be shown without a square
% bracket, unless it is the root object; if 0, square
% brackets are forced for any numerical arrays.
% SingletCell [1|0]: if 1, always enclose a cell with "[]"
% even it has only one element; if 0, brackets
% are ignored when a cell has only 1 element.
% ForceRootName [0|1]: when set to 1 and rootname is empty, savebj
% will use the name of the passed obj variable as the
% root object name; if obj is an expression and
% does not have a name, 'root' will be used; if this
% is set to 0 and rootname is empty, the root level
% will be merged down to the lower level.
% JSONP [''|string]: to generate a JSONP output (JSON with padding),
% for example, if opt.JSON='foo', the JSON data is
% wrapped inside a function call as 'foo(...);'
% UnpackHex [1|0]: convert the 0x[hex code] output by loadjson
% back to the string form
% Compression 'zlib', 'gzip', 'lzma', 'lzip', 'lz4' or 'lz4hc': specify array
% compression method; currently only supports 6 methods. The
% data compression only applicable to numerical arrays
% in 3D or higher dimensions, or when ArrayToStruct
% is 1 for 1D or 2D arrays. If one wants to
% compress a long string, one must convert
% it to uint8 or int8 array first. The compressed
% array uses three extra fields
% "_ArrayZipType_": the opt.Compression value.
% "_ArrayZipSize_": a 1D integer array to
% store the pre-compressed (but post-processed)
% array dimensions, and
% "_ArrayZipData_": the binary stream of
% the compressed binary array data WITHOUT
% 'base64' encoding
% CompressArraySize [100|int]: only to compress an array if the total
% element count is larger than this number.
% CompressStringSize [inf|int]: only to compress a string if the total
% element count is larger than this number.
% MessagePack [0|1]: output MessagePack (https://msgpack.org/)
% binary stream instead of BJD/UBJSON
% UBJSON [0|1]: 0: (default)-encode data based on BJData Draft 1
% (supports uint16(u)/uint32(m)/uint64(M)/half(h) markers)
% 1: encode data based on UBJSON Draft 12 (without
% u/m/M/h markers);all numeric values are stored in
% the Big-Endian byte order according to Draft-12
% FormatVersion [2|float]: set the JSONLab output version; since
% v2.0, JSONLab uses JData specification Draft 3
% for output format, it is incompatible with releases
% older than v1.9.8; if old output is desired,
% please set FormatVersion to 1.9 or earlier.
% KeepType [0|1]: if set to 1, use the original data type to store
% integers instead of converting to the integer type
% of the minimum length without losing accuracy (default)
% Debug [0|1]: output binary numbers in <%g> format for debugging
% Append [0|1]: if set to 1, append a new object at the end of the file.
% Endian ['L'|'B']: specify the endianness of the numbers
% in the BJData/UBJSON input data. Default: 'L'.
%
% Starting from JSONLab 2.9, BJData by default uses
% [L] Little-Endian for both integers and floating
% point numbers. This is a major departure from the
% UBJSON specification, where 'B' - Big-Endian -
% format is used for integer fields. UBJSON does
% not specifically define Endianness for
% floating-point numbers, resulting in mixed
% implementations. JSONLab 2.0-2.1 used 'B' for
% integers and floating-points; JSONLab 1.x uses
% 'B' for integers and native-endianness for
% floating-point numbers.
% FileEndian ['n'|'b','l']: Endianness of the output file ('n': native,
% 'b': big endian, 'l': little-endian)
% PreEncode [1|0]: if set to 1, call jdataencode first to preprocess
% the input data before saving
%
% opt can be replaced by a list of ('param',value) pairs. The param
% string is equivalent to a field in opt and is case sensitive.
% output:
% bjd: a binary string in the UBJSON format (see http://ubjson.org)
%
% examples:
% jsonmesh=struct('MeshVertex3',[0 0 0;1 0 0;0 1 0;1 1 0;0 0 1;1 0 1;0 1 1;1 1 1],...
% 'MeshTet4',[1 2 4 8;1 3 4 8;1 2 6 8;1 5 6 8;1 5 7 8;1 3 7 8],...
% 'MeshTri3',[1 2 4;1 2 6;1 3 4;1 3 7;1 5 6;1 5 7;...
% 2 8 4;2 8 6;3 8 4;3 8 7;5 8 6;5 8 7],...
% 'MeshCreator','FangQ','MeshTitle','T6 Cube',...
% 'SpecialData',[nan, inf, -inf]);
% savebj(jsonmesh)
% savebj('',jsonmesh,'debug',1)
% savebj('',jsonmesh,'meshdata.bjd')
% savebj('mesh1',jsonmesh,'FileName','meshdata.msgpk','MessagePack',1)
% savebj('',jsonmesh,'ubjson',1)
%
% license:
% BSD or GPL version 3, see LICENSE_{BSD,GPLv3}.txt files for details
%
% -- this function is part of JSONLab toolbox (http://iso2mesh.sf.net/cgi-bin/index.cgi?jsonlab)
%
if (nargin == 1)
varname = inputname(1);
obj = rootname;
rootname = varname;
else
varname = inputname(2);
end
if (length(varargin) == 1 && ischar(varargin{1}))
opt = struct('filename', varargin{1});
else
opt = varargin2struct(varargin{:});
end
opt.isoctave = isoctavemesh;
opt.compression = jsonopt('Compression', '', opt);
opt.nestarray = jsonopt('NestArray', 0, opt);
opt.formatversion = jsonopt('FormatVersion', 2, opt);
opt.compressarraysize = jsonopt('CompressArraySize', 100, opt);
opt.compressstringsize = jsonopt('CompressStringSize', inf, opt);
opt.singletcell = jsonopt('SingletCell', 1, opt);
opt.singletarray = jsonopt('SingletArray', 0, opt);
opt.arraytostruct = jsonopt('ArrayToStruct', 0, opt);
opt.debug = jsonopt('Debug', 0, opt);
opt.messagepack = jsonopt('MessagePack', 0, opt);
opt.num2cell_ = 0;
opt.ubjson = bitand(jsonopt('UBJSON', 0, opt), ~opt.messagepack);
opt.keeptype = jsonopt('KeepType', 0, opt);
opt.nosubstruct_ = 0;
[os, maxelem, systemendian] = computer;
opt.flipendian_ = (systemendian ~= upper(jsonopt('Endian', 'L', opt)));
if (jsonopt('PreEncode', 1, opt))
obj = jdataencode(obj, 'Base64', 0, 'UseArrayZipSize', opt.messagepack, opt);
end
dozip = opt.compression;
if (~isempty(dozip))
if (~ismember(dozip, {'zlib', 'gzip', 'lzma', 'lzip', 'lz4', 'lz4hc'}) && isempty(regexp(dozip, '^blosc2', 'once')))
error('compression method "%s" is not supported', dozip);
end
if (exist('zmat', 'file') ~= 2 && exist('zmat', 'file') ~= 3)
try
error(javachk('jvm'));
try
base64decode('test');
catch
matlab.net.base64decode('test');
end
catch
error('java-based compression is not supported');
end
end
end
if (~opt.messagepack)
if (~opt.ubjson)
opt.IM_ = 'UiuImlML';
opt.IType_ = {'uint8', 'int8', 'uint16', 'int16', 'uint32', 'int32', 'uint64', 'int64'};
opt.IByte_ = [1, 1, 2, 2, 4, 4, 8, 8];
opt.FM_ = 'hdD';
opt.FType_ = {'half', 'single', 'double'};
opt.FByte_ = [2, 4, 8];
else
opt.IM_ = 'UiIlL';
opt.IType_ = {'uint8', 'int8', 'int16', 'int32', 'int64'};
opt.IByte_ = [1, 1, 2, 4, 8];
opt.FM_ = 'IdD';
opt.FType_ = {'int16', 'single', 'double'};
opt.FByte_ = [2, 4, 8];
end
opt.FTM_ = 'FT';
opt.SM_ = 'CS';
opt.ZM_ = 'Z';
opt.OM_ = {'{', '}'};
opt.AM_ = {'[', ']'};
else
opt.IM_ = char([hex2dec('cc') hex2dec('d0') hex2dec('cd') hex2dec('d1') hex2dec('ce') hex2dec('d2') hex2dec('cf') hex2dec('d3')]);
opt.IType_ = {'uint8', 'int8', 'uint16', 'int16', 'uint32', 'int32', 'uint64', 'int64'};
opt.IByte_ = [1, 1, 2, 2, 4, 4, 8, 8];
opt.FM_ = char([hex2dec('cd') hex2dec('ca') hex2dec('cb')]); % MsgPack does not have half-precision, map to uint16
opt.FType_ = {'int16', 'single', 'double'};
opt.FByte_ = [2, 4, 8];
opt.FTM_ = char([hex2dec('c2') hex2dec('c3')]);
opt.SM_ = char([hex2dec('a1') hex2dec('db')]);
opt.ZM_ = char(hex2dec('c0'));
opt.OM_ = {char(hex2dec('df')), ''};
opt.AM_ = {char(hex2dec('dd')), ''};
end
rootisarray = 0;
rootlevel = 1;
forceroot = jsonopt('ForceRootName', 0, opt);
if ((isnumeric(obj) || islogical(obj) || ischar(obj) || isstruct(obj) || ...
iscell(obj) || isobject(obj)) && isempty(rootname) && forceroot == 0)
rootisarray = 1;
rootlevel = 0;
else
if (isempty(rootname))
rootname = varname;
end
end
if ((isstruct(obj) || iscell(obj)) && isempty(rootname) && forceroot)
rootname = 'root';
end
json = obj2ubjson(rootname, obj, rootlevel, opt);
if (~rootisarray)
if (opt.messagepack)
json = [char(129) json opt.OM_{2}];
else
json = [opt.OM_{1} json opt.OM_{2}];
end
end
jsonp = jsonopt('JSONP', '', opt);
if (~isempty(jsonp))
json = [jsonp '(' json ')'];
end
% save to a file if FileName is set, suggested by Patrick Rapin
filename = jsonopt('FileName', '', opt);
if (~isempty(filename))
encoding = jsonopt('Encoding', '', opt);
fileendian = jsonopt('FileEndian', 'n', opt);
writemode = 'w';
if (jsonopt('Append', 0, opt))
writemode = 'a';
end
if (~exist('OCTAVE_VERSION', 'builtin'))
fid = fopen(filename, writemode, fileendian, encoding);
else
fid = fopen(filename, writemode, fileendian);
end
fwrite(fid, uint8(json));
fclose(fid);
end
if (nargout > 0 || isempty(filename))
output = json;
end
%% -------------------------------------------------------------------------
function txt = obj2ubjson(name, item, level, varargin)
if (iscell(item) || isa(item, 'string'))
txt = cell2ubjson(name, item, level, varargin{:});
elseif (isstruct(item))
txt = struct2ubjson(name, item, level, varargin{:});
elseif (isnumeric(item) || islogical(item))
txt = mat2ubjson(name, item, level, varargin{:});
elseif (ischar(item))
if (numel(item) >= varargin{1}.compressstringsize)
txt = mat2ubjson(name, item, level, varargin{:});
else
txt = str2ubjson(name, item, level, varargin{:});
end
elseif (isa(item, 'function_handle'))
txt = struct2ubjson(name, functions(item), level, varargin{:});
elseif (isa(item, 'containers.Map') || isa(item, 'dictionary'))
txt = map2ubjson(name, item, level, varargin{:});
elseif (isa(item, 'categorical'))
txt = cell2ubjson(name, cellstr(item), level, varargin{:});
elseif (isa(item, 'table'))
txt = matlabtable2ubjson(name, item, level, varargin{:});
elseif (isa(item, 'graph') || isa(item, 'digraph'))
txt = struct2ubjson(name, jdataencode(item), level, varargin{:});
elseif (isobject(item))
txt = matlabobject2ubjson(name, item, level, varargin{:});
else
txt = any2ubjson(name, item, level, varargin{:});
end
%% -------------------------------------------------------------------------
function txt = cell2ubjson(name, item, level, varargin)
txt = '';
if (~iscell(item) && ~isa(item, 'string'))
error('input is not a cell');
end
isnum2cell = varargin{1}.num2cell_;
if (isnum2cell)
item = squeeze(item);
else
format = varargin{1}.formatversion;
if (format > 1.9 && ~isvector(item))
item = permute(item, ndims(item):-1:1);
end
end
dim = size(item);
if (ndims(squeeze(item)) > 2) % for 3D or higher dimensions, flatten to 2D for now
item = reshape(item, dim(1), numel(item) / dim(1));
dim = size(item);
end
bracketlevel = ~varargin{1}.singletcell;
Zmarker = varargin{1}.ZM_;
Imarker = varargin{1}.IM_;
Amarker = varargin{1}.AM_;
if (~strcmp(Amarker{1}, '['))
am0 = Imsgpk_(dim(2), 220, 144, varargin{:});
else
am0 = Amarker{1};
end
len = numel(item); % let's handle 1D cell first
if (len > bracketlevel)
if (~isempty(name))
txt = [N_(decodevarname(name, varargin{:}), varargin{:}) am0];
name = '';
else
txt = am0;
end
elseif (len == 0)
if (~isempty(name))
txt = [N_(decodevarname(name, varargin{:}), varargin{:}) Zmarker];
name = '';
else
txt = Zmarker;
end
end
if (~strcmp(Amarker{1}, '['))
am0 = Imsgpk_(dim(1), 220, 144, varargin{:});
end
for j = 1:dim(2)
if (dim(1) > 1)
txt = [txt am0];
end
for i = 1:dim(1)
txt = [txt char(obj2ubjson(name, item{i, j}, level + (len > bracketlevel), varargin{:}))];
end
if (dim(1) > 1)
txt = [txt Amarker{2}];
end
end
if (len > bracketlevel)
txt = [txt Amarker{2}];
end
%% -------------------------------------------------------------------------
function txt = struct2ubjson(name, item, level, varargin)
txt = '';
if (~isstruct(item))
error('input is not a struct');
end
dim = size(item);
if (ndims(squeeze(item)) > 2) % for 3D or higher dimensions, flatten to 2D for now
item = reshape(item, dim(1), numel(item) / dim(1));
dim = size(item);
end
len = numel(item);
forcearray = (len > 1 || (varargin{1}.singletarray == 1 && level > 0));
Imarker = varargin{1}.IM_;
Amarker = varargin{1}.AM_;
Omarker = varargin{1}.OM_;
if (isfield(item, encodevarname('_ArrayType_', varargin{:})))
varargin{1}.nosubstruct_ = 1;
end
if (~strcmp(Amarker{1}, '['))
am0 = Imsgpk_(dim(2), 220, 144, varargin{:});
else
am0 = Amarker{1};
end
if (~isempty(name))
if (forcearray)
txt = [N_(decodevarname(name, varargin{:}), varargin{:}) am0];
end
else
if (forcearray)
txt = am0;
end
end
if (~strcmp(Amarker{1}, '['))
am0 = Imsgpk_(dim(1), 220, 144, varargin{:});
end
for j = 1:dim(2)
if (dim(1) > 1)
txt = [txt am0];
end
for i = 1:dim(1)
names = fieldnames(item(i, j));
if (~strcmp(Omarker{1}, '{'))
om0 = Imsgpk_(length(names), 222, 128, varargin{:});
else
om0 = Omarker{1};
end
if (~isempty(name) && len == 1 && ~forcearray)
txt = [txt N_(decodevarname(name, varargin{:}), varargin{:}) om0];
else
txt = [txt om0];
end
if (~isempty(names))
for e = 1:length(names)
txt = [txt obj2ubjson(names{e}, item(i, j).(names{e}), ...
level + (dim(1) > 1) + 1 + forcearray, varargin{:})];
end
end
txt = [txt Omarker{2}];
end
if (dim(1) > 1)
txt = [txt Amarker{2}];
end
end
if (forcearray)
txt = [txt Amarker{2}];
end
%% -------------------------------------------------------------------------
function txt = map2ubjson(name, item, level, varargin)
txt = '';
itemtype = isa(item, 'containers.Map');
dim = size(item);
if (isa(item, 'dictionary'))
itemtype = 2;
dim = item.numEntries;
end
if (itemtype == 0)
error('input is not a containers.Map or dictionary class');
end
names = keys(item);
val = values(item);
if (~iscell(names))
names = num2cell(names, ndims(names));
end
if (~iscell(val))
val = num2cell(val, ndims(val));
end
Omarker = varargin{1}.OM_;
if (~strcmp(Omarker{1}, '{'))
om0 = Imsgpk_(length(names), 222, 128, varargin{:});
else
om0 = Omarker{1};
end
if (~isempty(name))
txt = [N_(decodevarname(name, varargin{:}), varargin{:}) om0];
else
txt = om0;
end
for i = 1:dim(1)
if (~isempty(names{i}))
txt = [txt obj2ubjson(names{i}, val{i}, ...
level + (dim(1) > 1), varargin{:})];
end
end
txt = [txt Omarker{2}];
if (isa(txt, 'string') && length(txt) > 1)
txt = sprintf('%s', txt);
end
%% -------------------------------------------------------------------------
function txt = str2ubjson(name, item, level, varargin)
txt = '';
if (~ischar(item))
error('input is not a string');
end
item = reshape(item, max(size(item), [1 0]));
len = size(item, 1);
Amarker = varargin{1}.AM_;
if (~strcmp(Amarker{1}, '['))
am0 = Imsgpk_(len, 220, 144, varargin{:});
else
am0 = Amarker{1};
end
if (~isempty(name))
if (len > 1)
txt = [N_(decodevarname(name, varargin{:}), varargin{:}) am0];
end
else
if (len > 1)
txt = am0;
end
end
for e = 1:len
val = item(e, :);
if (len == 1)
obj = [N_(decodevarname(name, varargin{:}), varargin{:}) '' '', S_(val, varargin{:}), ''];
if (isempty(name))
obj = ['', S_(val, varargin{:}), ''];
end
txt = [txt, '', obj];
else
txt = [txt, '', ['', S_(val, varargin{:}), '']];
end
end
if (len > 1)
txt = [txt Amarker{2}];
end
%% -------------------------------------------------------------------------
function txt = mat2ubjson(name, item, level, varargin)
if (~isnumeric(item) && ~islogical(item) && ~ischar(item))
error('input is not an array');
end
dozip = varargin{1}.compression;
zipsize = varargin{1}.compressarraysize;
format = varargin{1}.formatversion;
Zmarker = varargin{1}.ZM_;
FTmarker = varargin{1}.FTM_;
Imarker = varargin{1}.IM_;
Omarker = varargin{1}.OM_;
isnest = varargin{1}.nestarray;
ismsgpack = varargin{1}.messagepack;
opt = varargin{1};
if (ismsgpack)
isnest = 1;
end
if (~varargin{1}.nosubstruct_ && ((length(size(item)) > 2 && isnest == 0) || ...
issparse(item) || ~isreal(item) || varargin{1}.arraytostruct || ...
(~isempty(dozip) && numel(item) > zipsize)))
cid = I_(uint32(max(size(item))), varargin{:});
if (isempty(name))
txt = [Omarker{1} N_('_ArrayType_', opt), S_(class(item), opt), N_('_ArraySize_', opt), I_a(size(item), cid(1), varargin{:})];
else
if (isempty(item))
txt = [N_(decodevarname(name, varargin{:}), opt), Zmarker];
return
else
txt = [N_(decodevarname(name, varargin{:}), opt), Omarker{1}, N_('_ArrayType_', opt), S_(class(item), opt), N_('_ArraySize_', opt), I_a(size(item), cid(1), varargin{:})];
end
end
childcount = 2;
else
if (isempty(name))
txt = matdata2ubjson(item, level + 1, varargin{:});
else
if (numel(item) == 1 && varargin{1}.singletarray == 0)
numtxt = matdata2ubjson(item, level + 1, varargin{:});
txt = [N_(decodevarname(name, varargin{:}), opt) char(numtxt)];
else
txt = [N_(decodevarname(name, varargin{:}), opt), char(matdata2ubjson(item, level + 1, varargin{:}))];
end
end
return
end
if (issparse(item))
[ix, iy] = find(item);
data = full(item(find(item)));
if (~isreal(item))
data = [real(data(:)), imag(data(:))];
if (size(item, 1) == 1)
% Kludge to have data's 'transposedness' match item's.
% (Necessary for complex row vector handling below.)
data = data';
end
txt = [txt, N_('_ArrayIsComplex_', opt), FTmarker(2)];
childcount = childcount + 1;
end
txt = [txt, N_('_ArrayIsSparse_', opt), FTmarker(2)];
childcount = childcount + 1;
if (~isempty(dozip) && numel(data * 2) > zipsize)
if (size(item, 1) == 1)
% Row vector, store only column indices.
fulldata = [iy(:), data'];
elseif (size(item, 2) == 1)
% Column vector, store only row indices.
fulldata = [ix, data];
else
% General case, store row and column indices.
fulldata = [ix, iy, data];
end
cid = I_(uint32(max(size(fulldata))), varargin{:});
txt = [txt, N_('_ArrayZipSize_', opt), I_a(size(fulldata), cid(1), varargin{:})];
txt = [txt, N_('_ArrayZipType_', opt), S_(dozip, opt)];
compfun = str2func([dozip 'encode']);
txt = [txt, N_('_ArrayZipData_', opt), I_a(compfun(typecast(fulldata(:), 'uint8')), Imarker(1), varargin{:})];
childcount = childcount + 3;
else
if (size(item, 1) == 1)
% Row vector, store only column indices.
fulldata = [iy(:), data'];
elseif (size(item, 2) == 1)
% Column vector, store only row indices.
fulldata = [ix, data];
else
% General case, store row and column indices.
fulldata = [ix, iy, data];
end
if (ismsgpack)
cid = I_(uint32(max(size(fulldata))), varargin{:});
txt = [txt, N_('_ArrayZipSize_', opt), I_a(size(fulldata), cid(1), varargin{:})];
childcount = childcount + 1;
end
varargin{:}.ArrayToStruct = 0;
txt = [txt, N_('_ArrayData_', opt), ...
cell2ubjson('', num2cell(fulldata', 2)', level + 2, varargin{:})];
childcount = childcount + 1;
end
else
if (format > 1.9)
item = permute(item, ndims(item):-1:1);
end
if (~isempty(dozip) && numel(item) > zipsize)
if (isreal(item))
fulldata = item(:)';
if (islogical(fulldata) || ischar(fulldata))
fulldata = uint8(fulldata);
end
else
txt = [txt, N_('_ArrayIsComplex_', opt), FTmarker(2)];
childcount = childcount + 1;
fulldata = [real(item(:)) imag(item(:))];
end
cid = I_(uint32(max(size(fulldata))), varargin{:});
txt = [txt, N_('_ArrayZipSize_', opt), I_a(size(fulldata), cid(1), varargin{:})];
txt = [txt, N_('_ArrayZipType_', opt), S_(dozip, opt)];
encodeparam = {};
if (~isempty(regexp(dozip, '^blosc2', 'once')))
compfun = @blosc2encode;
encodeparam = {dozip, 'nthread', jsonopt('nthread', 1, opt), 'shuffle', jsonopt('shuffle', 1, opt), 'typesize', jsonopt('typesize', length(typecast(fulldata(1), 'uint8')), opt)};
else
compfun = str2func([dozip 'encode']);
end
txt = [txt, N_('_ArrayZipData_', opt), I_a(compfun(typecast(fulldata(:), 'uint8'), encodeparam{:}), Imarker(1), varargin{:})];
childcount = childcount + 3;
else
if (ismsgpack)
cid = I_(uint32(length(item(:))), varargin{:});
txt = [txt, N_('_ArrayZipSize_', opt), I_a([~isreal(item) + 1 length(item(:))], cid(1), varargin{:})];
childcount = childcount + 1;
end
if (isreal(item))
txt = [txt, N_('_ArrayData_', opt), ...
matdata2ubjson(item(:)', level + 2, varargin{:})];
childcount = childcount + 1;
else
txt = [txt, N_('_ArrayIsComplex_', opt), FTmarker(2)];
txt = [txt, N_('_ArrayData_', opt), ...
matdata2ubjson([real(item(:)) imag(item(:))]', level + 2, varargin{:})];
childcount = childcount + 2;
end
end
end
if (Omarker{1} ~= '{')
idx = find(txt == Omarker{1}, 1, 'first');
if (~isempty(idx))
txt = [txt(1:idx - 1) Imsgpk_(childcount, 222, 128, varargin{:}) txt(idx + 1:end)];
end
end
txt = [txt, Omarker{2}];
%% -------------------------------------------------------------------------
function txt = matlabtable2ubjson(name, item, level, varargin)
st = containers.Map();
st('_TableRecords_') = table2cell(item);
st('_TableRows_') = item.Properties.RowNames';
st('_TableCols_') = item.Properties.VariableNames;
if (isempty(name))
txt = map2ubjson(name, st, level, varargin{:});
else
temp = struct(name, struct());
temp.(name) = st;
txt = map2ubjson(name, temp.(name), level, varargin{:});
end
%% -------------------------------------------------------------------------
function txt = matlabobject2ubjson(name, item, level, varargin)
try
if numel(item) == 0 % empty object
st = struct();
elseif numel(item) == 1 %
txt = str2ubjson(name, char(item), level, varargin{:});
return
else
propertynames = properties(item);
for p = 1:numel(propertynames)
for o = numel(item):-1:1 % array of objects
st(o).(propertynames{p}) = item(o).(propertynames{p});
end
end
end
txt = struct2ubjson(name, st, level, varargin{:});
catch
txt = any2ubjson(name, item, level, varargin{:});
end
%% -------------------------------------------------------------------------
function txt = matdata2ubjson(mat, level, varargin)
Zmarker = varargin{1}.ZM_;
if (isempty(mat))
txt = Zmarker;
return
end
FTmarker = varargin{1}.FTM_;
Imarker = varargin{1}.IM_;
Fmarker = varargin{1}.FM_;
Amarker = varargin{1}.AM_;
isnest = varargin{:}.nestarray;
ismsgpack = varargin{1}.messagepack;
format = varargin{1}.formatversion;
isnum2cell = varargin{1}.num2cell_;
if (ismsgpack)
isnest = 1;
end
if (~isvector(mat) && isnest == 1)
if (format > 1.9 && isnum2cell == 0)
mat = permute(mat, ndims(mat):-1:1);
end
varargin{1}.num2cell_ = 1;
end
if (isa(mat, 'integer') || isinteger(mat) || (~varargin{1}.keeptype && isfloat(mat) && all(mod(mat(:), 1) == 0)))
if (~isvector(mat) && isnest == 1)
txt = cell2ubjson('', num2cell(mat, 1), level, varargin{:});
elseif (~ismsgpack || size(mat, 1) == 1)
if (varargin{1}.keeptype)
itype = class(mat);
idx = find(ismember(varargin{1}.IType_, itype));
if (isempty(idx))
idx = find(ismember(varargin{1}.IType_, itype(2:end)));
end
type = Imarker(idx);
if (numel(mat) == 1)
varargin{1}.inttype_ = idx;
end
elseif (~any(mat < 0))
cid = varargin{1}.IType_;
type = Imarker(end);
maxdata = max(double(mat(:)));
for i = 1:length(cid)
if (maxdata == cast(maxdata, cid{i}))
type = Imarker(i);
break
end
end
else
cid = varargin{1}.IType_;
type = Imarker(end);
mindata = min(double(mat(:)));
maxdata = max(double(mat(:)));
for i = 1:length(cid)
if (maxdata == cast(maxdata, cid{i}) && mindata == cast(mindata, cid{i}))
type = Imarker(i);
break
end
end
end
if (numel(mat) == 1)
if (mat < 0)
txt = I_(int64(mat), varargin{:});
else
txt = I_(uint64(mat), varargin{:});
end
else
rowmat = permute(mat, ndims(mat):-1:1);
txt = I_a(rowmat(:), type, size(mat), varargin{:});
end
else
txt = cell2ubjson('', num2cell(mat, 2), level, varargin{:});
end
elseif (islogical(mat))
logicalval = FTmarker;
if (numel(mat) == 1)
txt = logicalval(mat + 1);
else
if (~isvector(mat) && isnest == 1)
txt = cell2ubjson('', num2cell(uint8(mat), 1), level, varargin{:});
else
rowmat = permute(mat, ndims(mat):-1:1);
txt = I_a(uint8(rowmat(:)), Imarker(1), size(mat), varargin{:});
end
end
else
am0 = Amarker{1};
if (Amarker{1} ~= '[')
am0 = char(145);
end
if (numel(mat) == 1)
if (varargin{1}.singletarray == 1)
txt = [am0 D_(mat, varargin{:}) Amarker{2}];
else
txt = D_(mat, varargin{:});
end
else
if (~isvector(mat) && isnest == 1)
txt = cell2ubjson('', num2cell(mat, 1), level, varargin{:});
else
rowmat = permute(mat, ndims(mat):-1:1);
txt = D_a(rowmat(:), Fmarker(isa(rowmat, 'double') + 2), size(mat), varargin{:});
end
end
end
%% -------------------------------------------------------------------------
function val = N_(str, varargin)
ismsgpack = varargin{1}.messagepack;
str = char(str);
if (~ismsgpack)
val = [I_(int32(length(str)), varargin{:}) str];
else
val = S_(str, varargin{:});
end
%% -------------------------------------------------------------------------
function val = S_(str, varargin)
ismsgpack = varargin{1}.messagepack;
Smarker = varargin{1}.SM_;
if (length(str) == 1)
val = [Smarker(1) str];
else
if (ismsgpack)
val = [Imsgpk_(length(str), 218, 160, varargin{:}) str];
else
val = ['S' I_(int32(length(str)), varargin{:}) str];
end
end
%% -------------------------------------------------------------------------
function val = Imsgpk_(num, base1, base0, varargin)
if (num < 16)
val = char(uint8(num) + uint8(base0));
return
end
val = I_(uint32(num), varargin{:});
if (val(1) > char(210))
num = uint32(num);
val = [char(210) data2byte(endiancheck(cast(num, 'uint32'), varargin{:}), 'uint8')];
elseif (val(1) < char(209))
num = uint16(num);
val = [char(209) data2byte(endiancheck(cast(num, 'uint16'), varargin{:}), 'uint8')];
end
val(1) = char(val(1) - 209 + base1);
%% -------------------------------------------------------------------------
function val = I_(num, varargin)
if (~isinteger(num))
error('input is not an integer');
end
Imarker = varargin{1}.IM_;
cid = varargin{1}.IType_;
isdebug = varargin{1}.debug;
if (isfield(varargin{1}, 'inttype_'))
if (isdebug)
val = [Imarker(varargin{1}.inttype_) sprintf('<%.0f>', num)];
else
val = [Imarker(varargin{1}.inttype_) data2byte(endiancheck(cast(num, cid{varargin{1}.inttype_}), varargin{:}), 'uint8')];
end
return
end
if (Imarker(1) ~= 'U')
if (num >= 0 && num < 127)
val = uint8(num);
return
end
if (num < 0 && num >= -31)
val = typecast(int8(num), 'uint8');
return
end
end
if (Imarker(1) ~= 'U' && num < 0 && num < 127)
val = data2byte((endiancheck(cast(num, 'uint8'), varargin{:}) & 127), 'uint8');
return
end
key = Imarker;
for i = 1:length(cid)
if (num == cast(num, cid{i}))
if (isdebug)
val = [key(i) sprintf('<%.0f>', num)];
else
val = [key(i) data2byte(endiancheck(cast(num, cid{i}), varargin{:}), 'uint8')];
end
return
end
end
val = S_(sprintf('%.0f', num), varargin{:});
if (Imarker(1) == 'U')
val(1) = 'H';
end
%% -------------------------------------------------------------------------
function val = D_(num, varargin)
if (~isfloat(num))
error('input is not a float');
end
isdebug = varargin{1}.debug;
if (isdebug)
output = sprintf('<%g>', num);
else
output = data2byte(endiancheck(num, varargin{:}), 'uint8');
end
Fmarker = varargin{1}.FM_;
if (isa(num, 'half'))
val = [Fmarker(1) output(:)'];
elseif (isa(num, 'single'))
val = [Fmarker(2) output(:)'];
else
val = [Fmarker(3) output(:)'];
end
%% -------------------------------------------------------------------------
function data = I_a(num, type, dim, varargin)
if (isstruct(dim))
varargin = {dim};
end
Imarker = varargin{1}.IM_;
Amarker = varargin{1}.AM_;
if (Imarker(1) ~= 'U' && type <= 127)
type = char(204);
end
id = find(ismember(Imarker, type));
if (id == 0)
error('unsupported integer array');
end
% based on UBJSON specs, all integer types are stored in big endian format
cid = varargin{1}.IType_;
data = data2byte(endiancheck(cast(num, cid{id}), varargin{:}), 'uint8');
blen = varargin{1}.IByte_(id);
isnest = varargin{1}.nestarray;
isdebug = varargin{1}.debug;
if (isdebug)
output = sprintf('<%g>', num);
else
output = data(:);
end
if (isnest == 0 && numel(num) > 1 && Imarker(1) == 'U')
if (nargin >= 4 && ~isstruct(dim) && (length(dim) == 1 || (length(dim) >= 2 && prod(dim) ~= dim(2))))
cid = I_(uint32(max(dim)), varargin{:});