prosody
6a51749af7f4
util/datamapper.lua

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util/datamapper.lua @ 11457:6a51749af7f4

util.datamapper: Add initial support for parsing arrays
author Kim Alvefur <zash@zash.se>
date Thu, 18 Mar 2021 12:57:25 +0100
parent 11456:4e376a43fe40
child 11458:0e00fa518688
comparison
equal deleted inserted replaced
11456:4e376a43fe40 11457:6a51749af7f4
36 proptype = propschema.type 36 proptype = propschema.type
37 elseif type(propschema) == "string" then 37 elseif type(propschema) == "string" then
38 proptype = propschema 38 proptype = propschema
39 end 39 end
40 40
41 if proptype == "object" or proptype == "array" then
42 value_where = "in_children"
43 end
44
41 if type(propschema) == "table" then 45 if type(propschema) == "table" then
42 local xml = propschema.xml 46 local xml = propschema.xml
43 if xml then 47 if xml then
44 if xml.name then 48 if xml.name then
45 name = xml.name 49 name = xml.name
48 namespace = xml.namespace 52 namespace = xml.namespace
49 end 53 end
50 if xml.prefix then 54 if xml.prefix then
51 prefix = xml.prefix 55 prefix = xml.prefix
52 end 56 end
53 57 if proptype == "array" and xml.wrapped then
54 if xml.attribute then 58 value_where = "in_wrapper"
59 elseif xml.attribute then
55 value_where = "in_attribute" 60 value_where = "in_attribute"
56 elseif xml.text then 61 elseif xml.text then
57 value_where = "in_text" 62 value_where = "in_text"
58 elseif xml.x_name_is_value then 63 elseif xml.x_name_is_value then
59 value_where = "in_tag_name" 64 value_where = "in_tag_name"
67 elseif propschema["enum"] then 72 elseif propschema["enum"] then
68 enums = propschema["enum"] 73 enums = propschema["enum"]
69 end 74 end
70 end 75 end
71 76
72 if proptype == "object" or proptype == "array" then
73 value_where = "in_children"
74 end
75
76 return proptype, value_where, name, namespace, prefix, single_attribute, enums 77 return proptype, value_where, name, namespace, prefix, single_attribute, enums
77 end 78 end
78 79
79 local function parse_object(schema, s) 80 local parse_object
81 local parse_array
82
83 function parse_object(schema, s)
80 local out = {} 84 local out = {}
81 if schema.properties then 85 if schema.properties then
82 for prop, propschema in pairs(schema.properties) do 86 for prop, propschema in pairs(schema.properties) do
83 87
84 local proptype, value_where, name, namespace, prefix, single_attribute, enums = unpack_propschema(propschema, prop, s.attr.xmlns) 88 local proptype, value_where, name, namespace, prefix, single_attribute, enums = unpack_propschema(propschema, prop, s.attr.xmlns)
121 if proptype == "object" then 125 if proptype == "object" then
122 local c = s:get_child(name, namespace) 126 local c = s:get_child(name, namespace)
123 if c then 127 if c then
124 out[prop] = parse_object(propschema, c); 128 out[prop] = parse_object(propschema, c);
125 end 129 end
126 130 elseif proptype == "array" then
127 end 131 out[prop] = parse_array(propschema, s);
128 end 132 else
129 if value_where ~= "in_children" then 133 error("unreachable")
134 end
135 elseif value_where == "in_wrapper" and type(propschema) == "table" and proptype == "array" then
136 local wrapper = s:get_child(name, namespace);
137 if wrapper then
138 out[prop] = parse_array(propschema, wrapper);
139 else
140 error("unreachable")
141 end
142 else
143 error("unreachable")
144 end
145 if value_where ~= "in_children" and value_where ~= "in_wrapper" then
130 out[prop] = totype(proptype, value) 146 out[prop] = totype(proptype, value)
131 end 147 end
132 end 148 end
133 end 149 end
134 150
151 return out
152 end
153
154 function parse_array(schema, s)
155 local proptype, value_where, child_name, namespace = unpack_propschema(schema.items, nil, s.attr.xmlns)
156 local out = {}
157 for c in s:childtags(child_name, namespace) do
158 local value;
159 if value_where == "in_text_tag" then
160 value = c:get_text();
161 else
162 error("NYI")
163 end
164
165 if value ~= nil then
166 table.insert(out, value);
167 end
168 end
135 return out 169 return out
136 end 170 end
137 171
138 local function parse(schema, s) 172 local function parse(schema, s)
139 if schema.type == "object" then 173 if schema.type == "object" then
140 return parse_object(schema, s) 174 return parse_object(schema, s)
175 elseif schema.type == "array" then
176 return parse_array(schema, s)
177 else
178 error("top-level scalars unsupported")
141 end 179 end
142 end 180 end
143 181
144 local function unparse(schema, t, current_name, current_ns) 182 local function unparse(schema, t, current_name, current_ns)
145 if schema.type == "object" then 183 if schema.type == "object" then