prosody
245ffbb06f55
teal-src/util/datamapper.tl

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teal-src/util/datamapper.tl @ 12929:245ffbb06f55

util.jwt: Import definition of key from util.crypto Turns out we had a definition of that already
author Kim Alvefur <zash@zash.se>
date Fri, 10 Mar 2023 13:58:43 +0100
parent 12782:8815d3090928
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 if not math.type then require "util.mathcompat" end
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23
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24 local st = require "util.stanza";
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25 local json = require"util.json"
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26 local pointer = require"util.jsonpointer";
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27
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28 local json_type_name = json.json_type_name;
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29 local json_schema_object = require "util.jsonschema"
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30 local type schema_t = boolean | json_schema_object
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31
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32 local function toboolean ( s : string ) : boolean
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33 if s == "true" or s == "1" then
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34 return true
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35 elseif s == "false" or s == "0" then
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36 return false
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37 elseif s then
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38 return true
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39 end
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40 end
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41
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42 local function totype(t : json_type_name, s : string) : any
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43 if not s then return nil end
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44 if t == "string" then
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45 return s;
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46 elseif t == "boolean" then
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47 return toboolean(s)
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48 elseif t == "number" or t == "integer" then
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49 return tonumber(s)
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50 end
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51 end
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52
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53 local enum value_goes
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54 "in_tag_name"
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55 "in_text"
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56 "in_text_tag"
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57 "in_attribute"
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58 "in_single_attribute"
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59 "in_children"
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60 "in_wrapper"
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61 end
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62
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63 local function resolve_schema(schema : schema_t, root : json_schema_object) : schema_t
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64 if schema is json_schema_object then
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65 if schema["$ref"] and schema["$ref"]:sub(1, 1) == "#" then
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66 return pointer.resolve(root as table, schema["$ref"]:sub(2)) as schema_t;
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67 end
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68 end
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69 return schema;
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70 end
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71
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72 local function guess_schema_type(schema : json_schema_object) : json_type_name
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73 local schema_types = schema.type
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74 if schema_types is json_type_name then
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75 return schema_types
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76 elseif schema_types ~= nil then
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77 error "schema has unsupported 'type' property"
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78 elseif schema.properties then
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79 return "object"
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80 elseif schema.items then
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81 return "array"
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82 end
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83 return "string" -- default assumption
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84 end
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85
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86 local function unpack_propschema( propschema : schema_t, propname : string, current_ns : string )
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87 : json_type_name, value_goes, string, string, string, string, { any }
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88 local proptype : json_type_name = "string"
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89 local value_where : value_goes = propname and "in_text_tag" or "in_text"
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90 local name = propname
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91 local namespace : string
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92 local prefix : string
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93 local single_attribute : string
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94 local enums : { any }
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95
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96 if propschema is json_schema_object then
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97 proptype = guess_schema_type(propschema);
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98 elseif propschema is string then -- Teal says this can never be a string, but it could before so best be sure
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99 error("schema as string is not supported: "..propschema.." {"..current_ns.."}"..propname)
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100 end
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101
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102 if proptype == "object" or proptype == "array" then
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103 value_where = "in_children"
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104 end
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105
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106 if propschema is json_schema_object then
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107 local xml = propschema.xml
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108 if xml then
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109 if xml.name then
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110 name = xml.name
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111 end
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112 if xml.namespace and xml.namespace ~= current_ns then
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113 namespace = xml.namespace
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114 end
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115 if xml.prefix then
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116 prefix = xml.prefix
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117 end
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118 if proptype == "array" and xml.wrapped then
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119 value_where = "in_wrapper"
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120 elseif xml.attribute then
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121 value_where = "in_attribute"
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122 elseif xml.text then
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123 value_where = "in_text"
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124 elseif xml.x_name_is_value then
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125 value_where = "in_tag_name"
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126 elseif xml.x_single_attribute then
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127 single_attribute = xml.x_single_attribute
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128 value_where = "in_single_attribute"
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129 end
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130 end
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131 if propschema["const"] then
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132 enums = { propschema["const"] }
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133 elseif propschema["enum"] then
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134 enums = propschema["enum"]
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135 end
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Kim Alvefur <zash@zash.se>
parents: 11455
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136 end
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parents: 11455
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137
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138 return proptype, value_where, name, namespace, prefix, single_attribute, enums
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139 end
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Kim Alvefur <zash@zash.se>
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140
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141 local parse_object : function (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { string : any }
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142 local parse_array : function (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { any }
11456
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143
11465
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144 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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145 if value_where == "in_tag_name" then
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146 local c : st.stanza_t
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diff changeset
147 if proptype == "boolean" then
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148 c = s:get_child(name, namespace);
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149 elseif enums and proptype == "string" then
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150 -- XXX O(n²) ?
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151 -- Probably better to flip the table and loop over :childtags(nil, ns), should be 2xO(n)
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152 -- BUT works first, optimize later
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153 for i = 1, #enums do
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154 c = s:get_child(enums[i] as string, namespace);
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155 if c then break end
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156 end
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157 else
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158 c = s:get_child(nil, namespace);
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159 end
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160 if c then
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161 return c.name;
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162 end
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163 elseif value_where == "in_attribute" then
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164 local attr = name
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diff changeset
165 if prefix then
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166 attr = prefix .. ':' .. name
11476
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167 elseif namespace and namespace ~= s.attr.xmlns then
11465
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diff changeset
168 attr = namespace .. "\1" .. name
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diff changeset
169 end
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diff changeset
170 return s.attr[attr]
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parents: 11464
diff changeset
171
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parents: 11464
diff changeset
172 elseif value_where == "in_text" then
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Kim Alvefur <zash@zash.se>
parents: 11464
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173 return s:get_text()
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Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
174
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Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
175 elseif value_where == "in_single_attribute" then
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176 local c = s:get_child(name, namespace)
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177 return c and c.attr[single_attribute]
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178 elseif value_where == "in_text_tag" then
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179 return s:get_child_text(name, namespace)
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
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180 end
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
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181 end
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Kim Alvefur <zash@zash.se>
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diff changeset
182
12133
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183 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
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parents:
diff changeset
184 local out : { string : any } = {}
12133
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diff changeset
185 schema = resolve_schema(schema, root)
11461
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Kim Alvefur <zash@zash.se>
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186 if schema is json_schema_object and schema.properties then
11435
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Kim Alvefur <zash@zash.se>
parents:
diff changeset
187 for prop, propschema in pairs(schema.properties) do
12133
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188 propschema = resolve_schema(propschema, root)
11435
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parents:
diff changeset
189
11456
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190 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
191
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
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diff changeset
192 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>
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diff changeset
193 if proptype == "object" then
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
194 local c = s:get_child(name, namespace)
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
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parents:
diff changeset
195 if c then
12133
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diff changeset
196 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
197 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
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198 elseif proptype == "array" then
12133
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diff changeset
199 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
200 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
201 out[prop] = a;
b2f9782497dd util.datamapper: Don't include empty unwrapped arrays
Kim Alvefur <zash@zash.se>
parents: 11479
diff changeset
202 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
203 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
204 error "unreachable"
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
205 end
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
206 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
207 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
208 if wrapper then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
209 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
210 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
211 else
11465
19a88b61ab4e util.datamapper: Factor out extraction of the XML part to use
Kim Alvefur <zash@zash.se>
parents: 11464
diff changeset
212 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
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parents: 11464
diff changeset
213
11455
a5050e21ab08 util.datamapper: Separate extraction of xml from coercion to target type
Kim Alvefur <zash@zash.se>
parents: 11454
diff changeset
214 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
215 end
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
216 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
217 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
218
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
219 return out
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
220 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
221
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
222 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
223 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
224 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
225 local attr_name : string
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
226 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
227 value_where = "in_attribute";
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
228 attr_name = single_attribute;
c098d07e6717 util.datamapper: Finally implement support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11465
diff changeset
229 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
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parents: 11456
diff changeset
230 local out : { any } = {}
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
231
11471
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
232 if proptype == "object" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
233 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
234 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
235 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
236 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
237 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
238 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
239 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
240 elseif proptype == "array" then
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
241 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
242 for c in s:childtags(child_name, namespace) do
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
243 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
244 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
245 end
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
246 else
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
247 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
248 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>
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diff changeset
249
ab03de8e503e util.datamapper: Handle nested arrays or objects in arrays
Kim Alvefur <zash@zash.se>
parents: 11470
diff changeset
250 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
251 end
11457
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
252 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
253 return out;
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
254 end
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
255
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
256 local function parse (schema : json_schema_object, s : st.stanza_t) : table
12580
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
257 local s_type = guess_schema_type(schema)
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
258 if s_type == "object" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
259 return parse_object(schema, s, schema)
12580
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
260 elseif s_type == "array" then
12133
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Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
261 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
262 else
6a51749af7f4 util.datamapper: Add initial support for parsing arrays
Kim Alvefur <zash@zash.se>
parents: 11456
diff changeset
263 error "top-level scalars unsupported"
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
264 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
265 end
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
266
11475
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Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
267 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
268 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
269 return v
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
270 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
271 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
272 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
273 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
274 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
275 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
276 end
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
277 end
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
278
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
279 local unparse : function (json_schema_object, table, string, string, st.stanza_t, json_schema_object) : st.stanza_t
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
280
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
281 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)
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
282
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
283 if value_where == "in_attribute" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
284 local attr = name
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
285 if prefix then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
286 attr = prefix .. ':' .. name
11476
83e127eb91f9 util.datamapper: Deal with locally built stanzas missing xmlns
Kim Alvefur <zash@zash.se>
parents: 11475
diff changeset
287 elseif namespace and namespace ~= current_ns then
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
288 attr = namespace .. "\1" .. name
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
289 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
290
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
291 out.attr[attr] = toxmlstring(proptype, v)
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
292 elseif value_where == "in_text" then
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
293 out:text(toxmlstring(proptype, v))
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
294 elseif value_where == "in_single_attribute" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
295 assert(single_attribute)
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
296 local propattr : { string : string } = {}
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
297
11476
83e127eb91f9 util.datamapper: Deal with locally built stanzas missing xmlns
Kim Alvefur <zash@zash.se>
parents: 11475
diff changeset
298 if namespace and namespace ~= current_ns then
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
299 propattr.xmlns = namespace
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
300 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
301
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
302 propattr[single_attribute] = toxmlstring(proptype, v)
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
303 out:tag(name, propattr):up();
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
304
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
305 else
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
306 local propattr : { string : string }
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
307 if namespace ~= current_ns then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
308 propattr = { xmlns = namespace }
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
309 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
310 if value_where == "in_tag_name" then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
311 if proptype == "string" and v is string then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
312 out:tag(v, propattr):up();
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
313 elseif proptype == "boolean" and v == true then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
314 out:tag(name, propattr):up();
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
315 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
316 elseif proptype == "object" and propschema is json_schema_object and v is table then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
317 local c = unparse(propschema, v, name, namespace, nil, root);
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
318 if c then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
319 out:add_direct_child(c);
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
320 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
321 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
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
322 if value_where == "in_wrapper" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
323 local c = unparse(propschema, v, name, namespace, nil, root);
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
324 if c then
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
325 out:add_direct_child(c);
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
326 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
327 else
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
328 unparse(propschema, v, name, namespace, out, root);
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
329 end
11475
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
330 else
9bd36e871f05 util.datamapper: Factor out conversion from any value to XML string
Kim Alvefur <zash@zash.se>
parents: 11471
diff changeset
331 out:text_tag(name, toxmlstring(proptype, v), propattr)
11467
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
332 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
333 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
334 end
88792dd2bee9 util.datamapper: Factor out handling of object properties for array reuse
Kim Alvefur <zash@zash.se>
parents: 11466
diff changeset
335
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
336 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
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
337
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
338 if root == nil then root = schema end
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
339
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
340 if schema.xml then
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
341 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
342 current_name = schema.xml.name
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
343 end
11461
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
344 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
345 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
346 end
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
347 -- TODO prefix?
766b0eddd12c util.datamapper: Deal with type name changes in util.jsonschema
Kim Alvefur <zash@zash.se>
parents: 11459
diff changeset
348 end
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
349
11462
d1982b7eb00d util.datamapper: Fix arrays nesting one level too deep
Kim Alvefur <zash@zash.se>
parents: 11461
diff changeset
350 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
351
12580
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
352 local s_type = guess_schema_type(schema)
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
353 if s_type == "object" then
11458
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
354
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
355 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
356 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
357 local v = t[prop]
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
358
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
359 if v ~= nil then
11456
4e376a43fe40 util.datamapper: Factor out common schema unpacking
Kim Alvefur <zash@zash.se>
parents: 11455
diff changeset
360 local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(propschema, prop, current_ns)
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
361 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
362 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
363 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
364 return out;
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
365
12580
a9dbf657c894 util.datamapper: Improve handling of schemas with non-obvious "type"
Kim Alvefur <zash@zash.se>
parents: 12133
diff changeset
366 elseif s_type == "array" then
12133
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
367 local itemschema = resolve_schema(schema.items, root)
11060c8919b6 util.datamapper: Add support for $ref pointers
Kim Alvefur <zash@zash.se>
parents: 11481
diff changeset
368 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
369 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
370 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
371 end
0e00fa518688 util.datamapper: Limited support for unparsing simple arrays of strings
Kim Alvefur <zash@zash.se>
parents: 11457
diff changeset
372 return out;
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
373 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
374 end
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
375
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
376 return {
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
377 parse = parse,
11436
5df9ffc25bb4 util.datamapper: Add 'unparse' for turning tables into XML
Kim Alvefur <zash@zash.se>
parents: 11435
diff changeset
378 unparse = unparse,
11435
a1fa6202fa13 util.datamapper: Library for extracting data from stanzas
Kim Alvefur <zash@zash.se>
parents:
diff changeset
379 }