Description of writefile

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writefile

PURPOSE

WRITEFILE Writes a dataset to a DSDML file

SYNOPSIS

function writefile(DS, filename)

DESCRIPTION

WRITEFILE Writes a dataset to a DSDML file

 $ Syntax $
   - writefile(DS, filename)

 $ Arguments $
   - DS:           the dataset object
   - filename:     the name of the file to be written to

 $ Description $
   - writefile(DS, filename) writes a dataset object to the DSDML file
     with the filename specified.

 $ History $
   - Created by Dahua Lin on Jul 23rd, 2006

CROSS-REFERENCE INFORMATION

This function calls:

This function is called by:

SUBFUNCTIONS

• function sampleNode = CreateSampleNode(xdoc, sample)
• function groupNode = CreateSampleGroupNode(xdoc, grp)

SOURCE CODE

0001 function writefile(DS, filename)
0002 %WRITEFILE Writes a dataset to a DSDML file
0003 %
0004 % $ Syntax $
0005 %   - writefile(DS, filename)
0006 %
0007 % $ Arguments $
0008 %   - DS:           the dataset object
0009 %   - filename:     the name of the file to be written to
0010 %
0011 % $ Description $
0012 %   - writefile(DS, filename) writes a dataset object to the DSDML file
0013 %     with the filename specified.
0014 %
0015 % $ History $
0016 %   - Created by Dahua Lin on Jul 23rd, 2006
0017 %
0018 
0019 import com.mathworks.xml.*;
0020 
0021 %% Initialize the document
0022 
0023 xdoc = XMLUtils.createDocument('DataSet');
0024 xdoc.setVersion('1.0');
0025 xdoc.setEncoding('UTF-8');
0026 
0027 S = struct(DS);
0028 
0029 
0030 %% Set headers
0031 
0032 docelem = xdoc.getDocumentElement;
0033 docelem.setAttribute('version', char(S.version));
0034 docelem.setAttribute('name', char(S.name));
0035 docelem.setAttribute('unit', char(S.unittype));
0036 docelem.setAttribute('format', char(S.format));
0037 if ~isempty(S.author)
0038     docelem.setAttribute('author', char(S.author));
0039 end
0040 if ~isempty(S.description)
0041     docelem.setAttribute('description', char(S.description));
0042 end
0043 if ~isempty(S.attribs)
0044     attrnames = fieldnames(S.attribs);
0045     nattrs = length(attrnames);
0046     for i = 1 : nattrs
0047         docelem.setAttribute(attrnames{i}, S.attribs.(attrnames{i}));
0048     end
0049 end
0050 
0051 
0052 %% Create unit nodes
0053 
0054 switch S.unittype
0055     case 'Sample'
0056         n = length(S.units);
0057         for i = 1 : n
0058             docelem.appendChild(CreateSampleNode(xdoc, S.units(i)));
0059         end
0060         
0061     case 'SampleGroup'
0062         n = length(S.units);
0063         for i = 1 : n
0064             docelem.appendChild(CreateSampleGroupNode(xdoc, S.units(i)));
0065         end
0066         
0067     otherwise
0068         error('dsdml:invalidutype', ...
0069             'Invalid unit type %s', DS.unittype);
0070 end
0071     
0072 
0073 %% Write document
0074 xmlwrite(filename, xdoc);
0075 
0076 
0077 
0078 %% Node Creating functions
0079 
0080 function sampleNode = CreateSampleNode(xdoc, sample)
0081 
0082 sampleNode = xdoc.createElement('Sample');
0083 sampleNode.setAttribute('class_id', int2str(sample.class_id));
0084 if ~isempty(sample.filename)
0085     sampleNode.setAttribute('filename', sample.filename);
0086 end
0087 if ~isempty(sample.attribs)
0088     attrnames = fieldnames(sample.attribs);
0089     nattrs = length(attrnames);
0090     for i = 1 : nattrs
0091         sampleNode.setAttribute(attrnames{i}, sample.attribs.(attrnames{i}));
0092     end
0093 end
0094 
0095 
0096 function groupNode = CreateSampleGroupNode(xdoc, grp)
0097 
0098 groupNode = xdoc.createElement('SampleGroup');
0099 groupNode.setAttribute('class_id', int2str(grp.class_id));
0100 if ~isempty(grp.attribs)
0101     attrnames = fieldnames(grp.attribs);
0102     nattrs = length(attrnames);
0103     for i = 1 : nattrs
0104         sampleNode.setAttribute(attrnames{i}, grp.attribs.(attrnames{i}));
0105     end
0106 end
0107 nsamples = length(grp.samples);
0108 for i = 1 : nsamples
0109     groupNode.appendChild(CreateSampleNode(xdoc, grp.samples(i)));
0110 end
0111 
0112 
0113 
0114 
0115 
0116

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