Annotate

teal-src/util/datamapper.tl @ 12564:36e769c64054

util.hashes: Add SHA3 bindings
author Kim Alvefur <zash@zash.se>
date Thu, 10 Sep 2020 21:58:24 +0200
parent 12133:11060c8919b6
child 12580:a9dbf657c894
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 -- Copyright (C) 2021 Kim Alvefur
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2 --
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3 -- This project is MIT/X11 licensed. Please see the
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4 -- COPYING file in the source package for more information.
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5 --
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6 -- Based on
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7 -- https://json-schema.org/draft/2020-12/json-schema-core.html
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8 -- https://json-schema.org/draft/2020-12/json-schema-validation.html
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9 -- http://spec.openapis.org/oas/v3.0.1#xmlObject
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10 -- https://github.com/OAI/OpenAPI-Specification/issues/630 (text:true)
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11 --
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12 -- XML Object Extensions:
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13 -- text to refer to the text content at the same time as attributes
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14 -- x_name_is_value for enum fields where the <tag-name/> is the value
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15 -- x_single_attribute for <tag attr="this"/>
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16 --
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17 -- TODO pointers
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18 -- TODO cleanup / refactor
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19 -- TODO s/number/integer/ once we have appropriate math.type() compat
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20 --
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21
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22 local st = require "util.stanza";
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23 local json = require"util.json"
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24 local pointer = require"util.jsonpointer";
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25
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26 local json_type_name = json.json_type_name;
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27 local json_schema_object = require "util.jsonschema"
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28 local type schema_t = boolean | json_type_name | json_schema_object
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29
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30 local function toboolean ( s : string ) : boolean
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31 if s == "true" or s == "1" then
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32 return true
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33 elseif s == "false" or s == "0" then
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34 return false
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35 elseif s then
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36 return true
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37 end
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38 end
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39
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40 local function totype(t : json_type_name, s : string) : any
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41 if not s then return nil end
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42 if t == "string" then
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43 return s;
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44 elseif t == "boolean" then
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45 return toboolean(s)
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46 elseif t == "number" or t == "integer" then
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47 return tonumber(s)
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48 end
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49 end
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50
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51 local enum value_goes
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52 "in_tag_name"
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53 "in_text"
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54 "in_text_tag"
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55 "in_attribute"
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56 "in_single_attribute"
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57 "in_children"
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58 "in_wrapper"
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59 end
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60
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61 local function resolve_schema(schema : schema_t, root : json_schema_object) : schema_t
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62 if schema is json_schema_object and schema["$ref"] and schema["$ref"]:sub(1, 1) == "#" then
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63 local referenced = pointer.resolve(root as table, schema["$ref"]:sub(2)) as schema_t;
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64 if referenced ~= nil then
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65 return referenced
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66 end
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67 end
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68 return schema;
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69 end
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70
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71 local function unpack_propschema( propschema : schema_t, propname : string, current_ns : string )
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72 : json_type_name, value_goes, string, string, string, string, { any }
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73 local proptype : json_type_name = "string"
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74 local value_where : value_goes = propname and "in_text_tag" or "in_text"
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75 local name = propname
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76 local namespace : string
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77 local prefix : string
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78 local single_attribute : string
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79 local enums : { any }
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80
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81 if propschema is json_schema_object then
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82 proptype = propschema.type
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83 elseif propschema is json_type_name then
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84 proptype = propschema
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85 end
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86
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87 if proptype == "object" or proptype == "array" then
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88 value_where = "in_children"
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89 end
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90
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91 if propschema is json_schema_object then
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92 local xml = propschema.xml
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93 if xml then
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94 if xml.name then
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95 name = xml.name
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96 end
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97 if xml.namespace and xml.namespace ~= current_ns then
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98 namespace = xml.namespace
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99 end
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100 if xml.prefix then
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101 prefix = xml.prefix
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102 end
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103 if proptype == "array" and xml.wrapped then
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104 value_where = "in_wrapper"
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105 elseif xml.attribute then
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106 value_where = "in_attribute"
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107 elseif xml.text then
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108 value_where = "in_text"
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109 elseif xml.x_name_is_value then
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110 value_where = "in_tag_name"
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111 elseif xml.x_single_attribute then
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112 single_attribute = xml.x_single_attribute
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113 value_where = "in_single_attribute"
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114 end
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115 end
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116 if propschema["const"] then
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117 enums = { propschema["const"] }
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118 elseif propschema["enum"] then
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119 enums = propschema["enum"]
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120 end
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121 end
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122
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123 return proptype, value_where, name, namespace, prefix, single_attribute, enums
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124 end
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125
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126 local parse_object : function (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { string : any }
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127 local parse_array : function (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { any }
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128
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129 local function extract_value (s : st.stanza_t, value_where : value_goes, proptype : json.json_type_name, name : string, namespace : string, prefix : string, single_attribute : string, enums : { any }) : string
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130 if value_where == "in_tag_name" then
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131 local c : st.stanza_t
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132 if proptype == "boolean" then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
133 c = s:get_child(name, namespace);
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Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
134 elseif enums and proptype == "string" then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
135 -- XXX O(n²) ?
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
136 -- Probably better to flip the table and loop over :childtags(nil, ns), should be 2xO(n)
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
137 -- BUT works first, optimize later
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
138 for i = 1, #enums do
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
139 c = s:get_child(enums[i] as string, namespace);
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
140 if c then break end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
141 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
142 else
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
143 c = s:get_child(nil, namespace);
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
144 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
145 if c then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
146 return c.name;
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
147 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
148 elseif value_where == "in_attribute" then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
149 local attr = name
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
150 if prefix then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
151 attr = prefix .. ':' .. name
11476
83e127eb91f9 util.datamapper: Deal with locally built stanzas missing xmlns
Kim Alvefur <zash@zash.se>
parents: 11475
diff changeset
152 elseif namespace and namespace ~= s.attr.xmlns then
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
153 attr = namespace .. "\1" .. name
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
154 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
155 return s.attr[attr]
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
156
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
157 elseif value_where == "in_text" then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
158 return s:get_text()
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
159
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
160 elseif value_where == "in_single_attribute" then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
161 local c = s:get_child(name, namespace)
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
162 return c and c.attr[single_attribute]
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
163 elseif value_where == "in_text_tag" then
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
164 return s:get_child_text(name, namespace)
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
165 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
166 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
167
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
168 function parse_object (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { string : any }
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
169 local out : { string : any } = {}
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
170 schema = resolve_schema(schema, root)
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
171 if schema is json_schema_object and schema.properties then
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
172 for prop, propschema in pairs(schema.properties) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
173 propschema = resolve_schema(propschema, root)
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
174
11456
4e376a43fe40 util.datamapper: Factor out common schema unpacking
Kim Alvefur <zash@zash.se>
parents: 11455
diff changeset
175 local proptype, value_where, name, namespace, prefix, single_attribute, enums = unpack_propschema(propschema, prop, s.attr.xmlns)
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
176
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
177 if value_where == "in_children" and propschema is json_schema_object then
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
178 if proptype == "object" then
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
179 local c = s:get_child(name, namespace)
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
180 if c then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
181 out[prop] = parse_object(propschema, c, root);
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
182 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
183 elseif proptype == "array" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
184 local a = parse_array(propschema, s, root);
11481
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
185 if a and a[1] ~= nil then
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
186 out[prop] = a;
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
187 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
188 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
189 error "unreachable"
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
190 end
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
191 elseif value_where == "in_wrapper" and propschema is json_schema_object and proptype == "array" then
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
192 local wrapper = s:get_child(name, namespace);
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
193 if wrapper then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
194 out[prop] = parse_array(propschema, wrapper, root);
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
195 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
196 else
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
197 local value : string = extract_value (s, value_where, proptype, name, namespace, prefix, single_attribute, enums)
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
198
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
199 out[prop] = totype(proptype, value)
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
200 end
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
201 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
202 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
203
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
204 return out
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
205 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
206
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
207 function parse_array (schema : json_schema_object, s : st.stanza_t, root : json_schema_object) : { any }
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
208 local itemschema : schema_t = resolve_schema(schema.items, root);
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
209 local proptype, value_where, child_name, namespace, prefix, single_attribute, enums = unpack_propschema(itemschema, nil, s.attr.xmlns)
11466
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
210 local attr_name : string
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
211 if value_where == "in_single_attribute" then -- FIXME this shouldn't be needed
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
212 value_where = "in_attribute";
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
213 attr_name = single_attribute;
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
214 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
215 local out : { any } = {}
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
216
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
217 if proptype == "object" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
218 if itemschema is json_schema_object then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
219 for c in s:childtags(child_name, namespace) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
220 table.insert(out, parse_object(itemschema, c, root));
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
221 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
222 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
223 error "array items must be schema object"
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
224 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
225 elseif proptype == "array" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
226 if itemschema is json_schema_object then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
227 for c in s:childtags(child_name, namespace) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
228 table.insert(out, parse_array(itemschema, c, root));
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
229 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
230 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
231 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
232 for c in s:childtags(child_name, namespace) do
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
233 local value : string = extract_value (c, value_where, proptype, attr_name or child_name, namespace, prefix, single_attribute, enums)
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
234
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
235 table.insert(out, totype(proptype, value));
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
236 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
237 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
238 return out;
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
239 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
240
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
241 local function parse (schema : json_schema_object, s : st.stanza_t) : table
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
242 if schema.type == "object" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
243 return parse_object(schema, s, schema)
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
244 elseif schema.type == "array" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
245 return parse_array(schema, s, schema)
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
246 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
247 error "top-level scalars unsupported"
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
248 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
249 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
250
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
251 local function toxmlstring(proptype : json_type_name, v : any) : string
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
252 if proptype == "string" and v is string then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
253 return v
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
254 elseif proptype == "number" and v is number then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
255 return string.format("%g", v)
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
256 elseif proptype == "integer" and v is number then -- TODO is integer
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
257 return string.format("%d", v)
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
258 elseif proptype == "boolean" then
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
259 return v and "1" or "0"
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
260 end
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
261 end
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
262
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
263 local unparse : function (json_schema_object, table, string, string, st.stanza_t, json_schema_object) : st.stanza_t
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264
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265 local function unparse_property(out : st.stanza_t, v : any, proptype : json_type_name, propschema : schema_t, value_where : value_goes, name : string, namespace : string, current_ns : string, prefix : string, single_attribute : string, root : json_schema_object)
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266
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267 if value_where == "in_attribute" then
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268 local attr = name
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269 if prefix then
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270 attr = prefix .. ':' .. name
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271 elseif namespace and namespace ~= current_ns then
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272 attr = namespace .. "\1" .. name
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273 end
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274
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275 out.attr[attr] = toxmlstring(proptype, v)
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276 elseif value_where == "in_text" then
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277 out:text(toxmlstring(proptype, v))
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278 elseif value_where == "in_single_attribute" then
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279 assert(single_attribute)
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280 local propattr : { string : string } = {}
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281
11476
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282 if namespace and namespace ~= current_ns then
11467
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283 propattr.xmlns = namespace
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284 end
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285
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286 propattr[single_attribute] = toxmlstring(proptype, v)
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287 out:tag(name, propattr):up();
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288
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289 else
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290 local propattr : { string : string }
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291 if namespace ~= current_ns then
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292 propattr = { xmlns = namespace }
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293 end
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294 if value_where == "in_tag_name" then
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295 if proptype == "string" and v is string then
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296 out:tag(v, propattr):up();
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297 elseif proptype == "boolean" and v == true then
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298 out:tag(name, propattr):up();
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299 end
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diff changeset
300 elseif proptype == "object" and propschema is json_schema_object and v is table then
12133
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301 local c = unparse(propschema, v, name, namespace, nil, root);
11467
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302 if c then
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diff changeset
303 out:add_direct_child(c);
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304 end
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305 elseif proptype == "array" and propschema is json_schema_object and v is table then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
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diff changeset
306 if value_where == "in_wrapper" then
12133
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diff changeset
307 local c = unparse(propschema, v, name, namespace, nil, root);
11467
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diff changeset
308 if c then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
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diff changeset
309 out:add_direct_child(c);
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
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diff changeset
310 end
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Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
311 else
12133
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diff changeset
312 unparse(propschema, v, name, namespace, out, root);
11467
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diff changeset
313 end
11475
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parents: 11471
diff changeset
314 else
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
315 out:text_tag(name, toxmlstring(proptype, v), propattr)
11467
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Kim Alvefur <zash@zash.se>
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316 end
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Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
317 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
318 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
319
12133
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Kim Alvefur <zash@zash.se>
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diff changeset
320 function unparse ( schema : json_schema_object, t : table, current_name : string, current_ns : string, ctx : st.stanza_t, root : json_schema_object ) : st.stanza_t
11060c8919b6 util.datamapper: Add support for $ref pointers
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diff changeset
321
11060c8919b6 util.datamapper: Add support for $ref pointers
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diff changeset
322 if root == nil then root = schema end
11436
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diff changeset
323
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
324 if schema.xml then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
325 if schema.xml.name then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
326 current_name = schema.xml.name
11436
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Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
327 end
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
328 if schema.xml.namespace then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
329 current_ns = schema.xml.namespace
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
330 end
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
331 -- TODO prefix?
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
332 end
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
333
11462
d1982b7eb00d util.datamapper: Fix arrays nesting one level too deep
Kim Alvefur <zash@zash.se>
parents: 11461
diff changeset
334 local out = ctx or st.stanza(current_name, { xmlns = current_ns })
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
335
11458
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
336 if schema.type == "object" then
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
337
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
338 for prop, propschema in pairs(schema.properties) do
12133
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parents: 11481
diff changeset
339 propschema = resolve_schema(propschema, root)
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
340 local v = t[prop]
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
341
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
342 if v ~= nil then
11456
4e376a43fe40 util.datamapper: Factor out common schema unpacking
Kim Alvefur <zash@zash.se>
parents: 11455
diff changeset
343 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(propschema, prop, current_ns)
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
344 unparse_property(out, v, proptype, propschema, value_where, name, namespace, current_ns, prefix, single_attribute, root)
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
345 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
346 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
347 return out;
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
348
11458
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Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
349 elseif schema.type == "array" then
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
350 local itemschema = resolve_schema(schema.items, root)
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
351 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(itemschema, current_name, current_ns)
11468
348b191cd850 util.datamapper: Complete array building support
Kim Alvefur <zash@zash.se>
parents: 11467
diff changeset
352 for _, item in ipairs(t as { string }) do
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
353 unparse_property(out, item, proptype, itemschema, value_where, name, namespace, current_ns, prefix, single_attribute, root)
11458
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
354 end
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
355 return out;
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
356 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
357 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
358
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
359 return {
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
360 parse = parse,
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
361 unparse = unparse,
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
362 }