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-rw-r--r--Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/internal/protocol/xml/xmlutil/build.go262
1 files changed, 262 insertions, 0 deletions
diff --git a/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/internal/protocol/xml/xmlutil/build.go b/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/internal/protocol/xml/xmlutil/build.go
new file mode 100644
index 000000000..af2ce630b
--- /dev/null
+++ b/Godeps/_workspace/src/github.com/awslabs/aws-sdk-go/internal/protocol/xml/xmlutil/build.go
@@ -0,0 +1,262 @@
+package xmlutil
+
+import (
+ "encoding/base64"
+ "encoding/xml"
+ "fmt"
+ "reflect"
+ "sort"
+ "strconv"
+ "strings"
+ "time"
+)
+
+func BuildXML(params interface{}, e *xml.Encoder) error {
+ b := xmlBuilder{encoder: e, namespaces: map[string]string{}}
+ root := NewXMLElement(xml.Name{})
+ if err := b.buildValue(reflect.ValueOf(params), root, ""); err != nil {
+ return err
+ }
+ for _, c := range root.Children {
+ for _, v := range c {
+ return StructToXML(e, v, false)
+ }
+ }
+ return nil
+}
+
+func elemOf(value reflect.Value) reflect.Value {
+ for value.Kind() == reflect.Ptr {
+ value = value.Elem()
+ }
+ return value
+}
+
+type xmlBuilder struct {
+ encoder *xml.Encoder
+ namespaces map[string]string
+}
+
+func (b *xmlBuilder) buildValue(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
+ value = elemOf(value)
+ if !value.IsValid() { // no need to handle zero values
+ return nil
+ } else if tag.Get("location") != "" { // don't handle non-body location values
+ return nil
+ }
+
+ t := tag.Get("type")
+ if t == "" {
+ switch value.Kind() {
+ case reflect.Struct:
+ t = "structure"
+ case reflect.Slice:
+ t = "list"
+ case reflect.Map:
+ t = "map"
+ }
+ }
+
+ switch t {
+ case "structure":
+ if field, ok := value.Type().FieldByName("SDKShapeTraits"); ok {
+ tag = tag + reflect.StructTag(" ") + field.Tag
+ }
+ return b.buildStruct(value, current, tag)
+ case "list":
+ return b.buildList(value, current, tag)
+ case "map":
+ return b.buildMap(value, current, tag)
+ default:
+ return b.buildScalar(value, current, tag)
+ }
+}
+
+func (b *xmlBuilder) buildStruct(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
+ if !value.IsValid() {
+ return nil
+ }
+
+ fieldAdded := false
+
+ // unwrap payloads
+ if payload := tag.Get("payload"); payload != "" {
+ field, _ := value.Type().FieldByName(payload)
+ tag = field.Tag
+ value = elemOf(value.FieldByName(payload))
+
+ if !value.IsValid() {
+ return nil
+ }
+ }
+
+ child := NewXMLElement(xml.Name{Local: tag.Get("locationName")})
+
+ // there is an xmlNamespace associated with this struct
+ if prefix, uri := tag.Get("xmlPrefix"), tag.Get("xmlURI"); uri != "" {
+ ns := xml.Attr{
+ Name: xml.Name{Local: "xmlns"},
+ Value: uri,
+ }
+ if prefix != "" {
+ b.namespaces[prefix] = uri // register the namespace
+ ns.Name.Local = "xmlns:" + prefix
+ }
+
+ child.Attr = append(child.Attr, ns)
+ }
+
+ t := value.Type()
+ for i := 0; i < value.NumField(); i++ {
+ if c := t.Field(i).Name[0:1]; strings.ToLower(c) == c {
+ continue // ignore unexported fields
+ }
+
+ member := elemOf(value.Field(i))
+ field := t.Field(i)
+ mTag := field.Tag
+
+ if mTag.Get("location") != "" { // skip non-body members
+ continue
+ }
+
+ memberName := mTag.Get("locationName")
+ if memberName == "" {
+ memberName = field.Name
+ mTag = reflect.StructTag(string(mTag) + ` locationName:"` + memberName + `"`)
+ }
+ if err := b.buildValue(member, child, mTag); err != nil {
+ return err
+ }
+
+ fieldAdded = true
+ }
+
+ if fieldAdded { // only append this child if we have one ore more valid members
+ current.AddChild(child)
+ }
+
+ return nil
+}
+
+func (b *xmlBuilder) buildList(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
+ if value.IsNil() { // don't build omitted lists
+ return nil
+ }
+
+ // check for unflattened list member
+ flattened := tag.Get("flattened") != ""
+
+ xname := xml.Name{Local: tag.Get("locationName")}
+ if flattened {
+ for i := 0; i < value.Len(); i++ {
+ child := NewXMLElement(xname)
+ current.AddChild(child)
+ if err := b.buildValue(value.Index(i), child, ""); err != nil {
+ return err
+ }
+ }
+ } else {
+ list := NewXMLElement(xname)
+ current.AddChild(list)
+
+ for i := 0; i < value.Len(); i++ {
+ iname := tag.Get("locationNameList")
+ if iname == "" {
+ iname = "member"
+ }
+
+ child := NewXMLElement(xml.Name{Local: iname})
+ list.AddChild(child)
+ if err := b.buildValue(value.Index(i), child, ""); err != nil {
+ return err
+ }
+ }
+ }
+
+ return nil
+}
+
+func (b *xmlBuilder) buildMap(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
+ if value.IsNil() { // don't build omitted maps
+ return nil
+ }
+
+ maproot := NewXMLElement(xml.Name{Local: tag.Get("locationName")})
+ current.AddChild(maproot)
+ current = maproot
+
+ kname, vname := "key", "value"
+ if n := tag.Get("locationNameKey"); n != "" {
+ kname = n
+ }
+ if n := tag.Get("locationNameValue"); n != "" {
+ vname = n
+ }
+
+ // sorting is not required for compliance, but it makes testing easier
+ keys := make([]string, value.Len())
+ for i, k := range value.MapKeys() {
+ keys[i] = k.String()
+ }
+ sort.Strings(keys)
+
+ for _, k := range keys {
+ v := value.MapIndex(reflect.ValueOf(k))
+ fmt.Println(k, v.Interface())
+
+ mapcur := current
+ if tag.Get("flattened") == "" { // add "entry" tag to non-flat maps
+ child := NewXMLElement(xml.Name{Local: "entry"})
+ mapcur.AddChild(child)
+ mapcur = child
+ }
+
+ kchild := NewXMLElement(xml.Name{Local: kname})
+ kchild.Text = k
+ vchild := NewXMLElement(xml.Name{Local: vname})
+ mapcur.AddChild(kchild)
+ mapcur.AddChild(vchild)
+
+ if err := b.buildValue(v, vchild, ""); err != nil {
+ return err
+ }
+ }
+
+ return nil
+}
+
+func (b *xmlBuilder) buildScalar(value reflect.Value, current *XMLNode, tag reflect.StructTag) error {
+ var str string
+ switch converted := value.Interface().(type) {
+ case string:
+ str = converted
+ case []byte:
+ str = base64.StdEncoding.EncodeToString(converted)
+ case bool:
+ str = strconv.FormatBool(converted)
+ case int64:
+ str = strconv.FormatInt(converted, 10)
+ case int:
+ str = strconv.Itoa(converted)
+ case float64:
+ str = strconv.FormatFloat(converted, 'f', -1, 64)
+ case float32:
+ str = strconv.FormatFloat(float64(converted), 'f', -1, 32)
+ case time.Time:
+ const ISO8601UTC = "2006-01-02T15:04:05Z"
+ str = converted.UTC().Format(ISO8601UTC)
+ default:
+ return fmt.Errorf("unsupported value for param %s: %v (%s)",
+ tag.Get("locationName"), value.Interface(), value.Type().Name())
+ }
+
+ xname := xml.Name{Local: tag.Get("locationName")}
+ if tag.Get("xmlAttribute") != "" { // put into current node's attribute list
+ attr := xml.Attr{Name: xname, Value: str}
+ current.Attr = append(current.Attr, attr)
+ } else { // regular text node
+ current.AddChild(&XMLNode{Name: xname, Text: str})
+ }
+ return nil
+}