diff options
Diffstat (limited to 'teal-src/util/datamapper.tl')
| -rw-r--r-- | teal-src/util/datamapper.tl | 60 |
1 files changed, 39 insertions, 21 deletions
diff --git a/teal-src/util/datamapper.tl b/teal-src/util/datamapper.tl index ed7ce62c..78ca3035 100644 --- a/teal-src/util/datamapper.tl +++ b/teal-src/util/datamapper.tl @@ -21,6 +21,7 @@ local st = require "util.stanza"; local json = require"util.json" +local pointer = require"util.jsonpointer"; local json_type_name = json.json_type_name; local json_schema_object = require "util.jsonschema" @@ -57,6 +58,16 @@ local enum value_goes "in_wrapper" end +local function resolve_schema(schema : schema_t, root : json_schema_object) : schema_t + if schema is json_schema_object and schema["$ref"] and schema["$ref"]:sub(1, 1) == "#" then + local referenced = pointer.resolve(root as table, schema["$ref"]:sub(2)) as schema_t; + if referenced ~= nil then + return referenced + end + end + return schema; +end + local function unpack_propschema( propschema : schema_t, propname : string, current_ns : string ) : json_type_name, value_goes, string, string, string, string, { any } local proptype : json_type_name = "string" @@ -112,8 +123,8 @@ local function unpack_propschema( propschema : schema_t, propname : string, curr return proptype, value_where, name, namespace, prefix, single_attribute, enums end -local parse_object : function (schema : schema_t, s : st.stanza_t) : { string : any } -local parse_array : function (schema : schema_t, s : st.stanza_t) : { any } +local parse_object : function (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { string : any } +local parse_array : function (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { any } 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 if value_where == "in_tag_name" then @@ -154,10 +165,12 @@ local function extract_value (s : st.stanza_t, value_where : value_goes, proptyp end end -function parse_object (schema : schema_t, s : st.stanza_t) : { string : any } +function parse_object (schema : schema_t, s : st.stanza_t, root : json_schema_object) : { string : any } local out : { string : any } = {} + schema = resolve_schema(schema, root) if schema is json_schema_object and schema.properties then for prop, propschema in pairs(schema.properties) do + propschema = resolve_schema(propschema, root) local proptype, value_where, name, namespace, prefix, single_attribute, enums = unpack_propschema(propschema, prop, s.attr.xmlns) @@ -165,10 +178,10 @@ function parse_object (schema : schema_t, s : st.stanza_t) : { string : any } if proptype == "object" then local c = s:get_child(name, namespace) if c then - out[prop] = parse_object(propschema, c); + out[prop] = parse_object(propschema, c, root); end elseif proptype == "array" then - local a = parse_array(propschema, s); + local a = parse_array(propschema, s, root); if a and a[1] ~= nil then out[prop] = a; end @@ -178,7 +191,7 @@ function parse_object (schema : schema_t, s : st.stanza_t) : { string : any } elseif value_where == "in_wrapper" and propschema is json_schema_object and proptype == "array" then local wrapper = s:get_child(name, namespace); if wrapper then - out[prop] = parse_array(propschema, wrapper); + out[prop] = parse_array(propschema, wrapper, root); end else local value : string = extract_value (s, value_where, proptype, name, namespace, prefix, single_attribute, enums) @@ -191,8 +204,8 @@ function parse_object (schema : schema_t, s : st.stanza_t) : { string : any } return out end -function parse_array (schema : json_schema_object, s : st.stanza_t) : { any } - local itemschema : schema_t = schema.items; +function parse_array (schema : json_schema_object, s : st.stanza_t, root : json_schema_object) : { any } + local itemschema : schema_t = resolve_schema(schema.items, root); local proptype, value_where, child_name, namespace, prefix, single_attribute, enums = unpack_propschema(itemschema, nil, s.attr.xmlns) local attr_name : string if value_where == "in_single_attribute" then -- FIXME this shouldn't be needed @@ -204,7 +217,7 @@ function parse_array (schema : json_schema_object, s : st.stanza_t) : { any } if proptype == "object" then if itemschema is json_schema_object then for c in s:childtags(child_name, namespace) do - table.insert(out, parse_object(itemschema, c)); + table.insert(out, parse_object(itemschema, c, root)); end else error "array items must be schema object" @@ -212,7 +225,7 @@ function parse_array (schema : json_schema_object, s : st.stanza_t) : { any } elseif proptype == "array" then if itemschema is json_schema_object then for c in s:childtags(child_name, namespace) do - table.insert(out, parse_array(itemschema, c)); + table.insert(out, parse_array(itemschema, c, root)); end end else @@ -227,9 +240,9 @@ end local function parse (schema : json_schema_object, s : st.stanza_t) : table if schema.type == "object" then - return parse_object(schema, s) + return parse_object(schema, s, schema) elseif schema.type == "array" then - return parse_array(schema, s) + return parse_array(schema, s, schema) else error "top-level scalars unsupported" end @@ -247,9 +260,10 @@ local function toxmlstring(proptype : json_type_name, v : any) : string end end -local unparse : function (json_schema_object, table, string, string, st.stanza_t) : st.stanza_t +local unparse : function (json_schema_object, table, string, string, st.stanza_t, json_schema_object) : st.stanza_t + +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) -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) if value_where == "in_attribute" then local attr = name if prefix then @@ -284,18 +298,18 @@ local function unparse_property(out : st.stanza_t, v : any, proptype : json_type out:tag(name, propattr):up(); end elseif proptype == "object" and propschema is json_schema_object and v is table then - local c = unparse(propschema, v, name, namespace); + local c = unparse(propschema, v, name, namespace, nil, root); if c then out:add_direct_child(c); end elseif proptype == "array" and propschema is json_schema_object and v is table then if value_where == "in_wrapper" then - local c = unparse(propschema, v, name, namespace); + local c = unparse(propschema, v, name, namespace, nil, root); if c then out:add_direct_child(c); end else - unparse(propschema, v, name, namespace, out); + unparse(propschema, v, name, namespace, out, root); end else out:text_tag(name, toxmlstring(proptype, v), propattr) @@ -303,7 +317,9 @@ local function unparse_property(out : st.stanza_t, v : any, proptype : json_type end end -function unparse ( schema : json_schema_object, t : table, current_name : string, current_ns : string, ctx : st.stanza_t ) : st.stanza_t +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 + + if root == nil then root = schema end if schema.xml then if schema.xml.name then @@ -320,19 +336,21 @@ function unparse ( schema : json_schema_object, t : table, current_name : string if schema.type == "object" then for prop, propschema in pairs(schema.properties) do + propschema = resolve_schema(propschema, root) local v = t[prop] if v ~= nil then local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(propschema, prop, current_ns) - unparse_property(out, v, proptype, propschema, value_where, name, namespace, current_ns, prefix, single_attribute) + unparse_property(out, v, proptype, propschema, value_where, name, namespace, current_ns, prefix, single_attribute, root) end end return out; elseif schema.type == "array" then - local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(schema.items, current_name, current_ns) + local itemschema = resolve_schema(schema.items, root) + local proptype, value_where, name, namespace, prefix, single_attribute = unpack_propschema(itemschema, current_name, current_ns) for _, item in ipairs(t as { string }) do - unparse_property(out, item, proptype, schema.items, value_where, name, namespace, current_ns, prefix, single_attribute) + unparse_property(out, item, proptype, itemschema, value_where, name, namespace, current_ns, prefix, single_attribute, root) end return out; end |