diff options
Diffstat (limited to 'util')
| -rw-r--r-- | util/datamapper.lua | 57 |
1 files changed, 39 insertions, 18 deletions
diff --git a/util/datamapper.lua b/util/datamapper.lua index 00c75a25..25c4c986 100644 --- a/util/datamapper.lua +++ b/util/datamapper.lua @@ -1,4 +1,5 @@ local st = require("util.stanza"); +local pointer = require("util.jsonpointer"); local schema_t = {} @@ -27,6 +28,16 @@ end local value_goes = {} +local function resolve_schema(schema, root) + if type(schema) == "table" and schema["$ref"] and schema["$ref"]:sub(1, 1) == "#" then + local referenced = pointer.resolve(root, schema["$ref"]:sub(2)); + if referenced ~= nil then + return referenced + end + end + return schema +end + local function unpack_propschema(propschema, propname, current_ns) local proptype = "string" @@ -124,10 +135,12 @@ local function extract_value(s, value_where, proptype, name, namespace, prefix, end end -function parse_object(schema, s) +function parse_object(schema, s, root) local out = {} + schema = resolve_schema(schema, root) if type(schema) == "table" 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) @@ -135,10 +148,10 @@ function parse_object(schema, s) 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 @@ -148,7 +161,7 @@ function parse_object(schema, s) elseif value_where == "in_wrapper" and type(propschema) == "table" 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 = extract_value(s, value_where, proptype, name, namespace, prefix, single_attribute, enums) @@ -161,8 +174,8 @@ function parse_object(schema, s) return out end -function parse_array(schema, s) - local itemschema = schema.items; +function parse_array(schema, s, root) + local itemschema = 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 if value_where == "in_single_attribute" then @@ -174,7 +187,7 @@ function parse_array(schema, s) if proptype == "object" then if type(itemschema) == "table" 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") @@ -182,7 +195,7 @@ function parse_array(schema, s) elseif proptype == "array" then if type(itemschema) == "table" 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 @@ -197,9 +210,9 @@ end local function parse(schema, s) 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 @@ -219,7 +232,9 @@ end local unparse -local function unparse_property(out, v, proptype, propschema, value_where, name, namespace, current_ns, prefix, single_attribute) +local function unparse_property(out, v, proptype, propschema, value_where, name, namespace, current_ns, prefix, + single_attribute, root) + if value_where == "in_attribute" then local attr = name if prefix then @@ -254,18 +269,18 @@ local function unparse_property(out, v, proptype, propschema, value_where, name, out:tag(name, propattr):up(); end elseif proptype == "object" and type(propschema) == "table" and type(v) == "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 type(propschema) == "table" and type(v) == "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) @@ -273,7 +288,11 @@ local function unparse_property(out, v, proptype, propschema, value_where, name, end end -function unparse(schema, t, current_name, current_ns, ctx) +function unparse(schema, t, current_name, current_ns, ctx, root) + + if root == nil then + root = schema + end if schema.xml then if schema.xml.name then @@ -290,19 +309,21 @@ function unparse(schema, t, current_name, current_ns, ctx) 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) 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 |