[AzDatalake] Blob swagger update to latest 2021-12-02 (#22178)

* blob swagger update to latest 2021-12-02

* Update sdk/storage/azdatalake/internal/generated_blob/autorest.md

Co-authored-by: Sourav Gupta <98318303+souravgupta-msft@users.noreply.github.com>

* unmarshall-xml list blobs

* unmarshall-xml list blobs

---------

Co-authored-by: Sourav Gupta <98318303+souravgupta-msft@users.noreply.github.com>

sdk/storage/azdatalake/internal/generated_blob/autorest.md

@@ -7,7 +7,7 @@ go: true
 clear-output-folder: false
 version: "^3.0.0"
 license-header: MICROSOFT_MIT_NO_VERSION
-input-file: "https://raw.githubusercontent.com/Azure/azure-rest-api-specs/e515b6251fdc21015282d2e84b85beec7c091763/specification/storage/data-plane/Microsoft.BlobStorage/preview/2020-10-02/blob.json"
+input-file: "https://raw.githubusercontent.com/Azure/azure-rest-api-specs/a32d0b2423d19835246bb2ef92941503bfd5e734/specification/storage/data-plane/Microsoft.BlobStorage/preview/2021-12-02/blob.json"
 credential-scope: "https://storage.azure.com/.default"
 output-folder: ../generated_blob
 file-prefix: "zz_"
@@ -475,6 +475,7 @@ directive:
         replace(/BlobItem/g, 'PathItem').
         replace(/BlobPrefix/g, 'PathPrefix').
         replace(/BlobPrefixes/g, 'PathPrefixes').
+        replace(/BlobName/g, 'PathName').
         replace(/BlobProperties/g, 'PathProperties').
         replace(/ContainerProperties/g, 'FileSystemProperties');
 ```

sdk/storage/azdatalake/internal/generated_blob/models.go

@@ -6,6 +6,12 @@
 
 package generated_blob
 
+import (
+	"encoding/xml"
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/to"
+	"net/url"
+)
+
 type TransactionalContentSetter interface {
 	SetCRC64([]byte)
 	SetMD5([]byte)
@@ -63,3 +69,64 @@ func (p *PageBlobClientUploadPagesFromURLOptions) SetSourceContentCRC64(v []byte
 func (p *PageBlobClientUploadPagesFromURLOptions) SetSourceContentMD5(v []byte) {
 	p.SourceContentMD5 = v
 }
+
+// Custom UnmarshalXML functions for types that need special handling.
+
+// UnmarshalXML implements the xml.Unmarshaller interface for type PathPrefix.
+func (p *PathPrefix) UnmarshalXML(dec *xml.Decoder, start xml.StartElement) error {
+	type alias PathPrefix
+	aux := &struct {
+		*alias
+		PathName *PathName `xml:"Name"`
+	}{
+		alias: (*alias)(p),
+	}
+	if err := dec.DecodeElement(aux, &start); err != nil {
+		return err
+	}
+	if aux.PathName != nil {
+		if aux.PathName.Encoded != nil && *aux.PathName.Encoded {
+			name, err := url.QueryUnescape(*aux.PathName.Content)
+
+			if err != nil {
+				return err
+			}
+			p.Name = to.Ptr(string(name))
+		} else {
+			p.Name = aux.PathName.Content
+		}
+	}
+	return nil
+}
+
+// UnmarshalXML implements the xml.Unmarshaller interface for type PathItem.
+func (p *PathItem) UnmarshalXML(dec *xml.Decoder, start xml.StartElement) error {
+	type alias PathItem
+	aux := &struct {
+		*alias
+		PathName   *PathName            `xml:"Name"`
+		Metadata   additionalProperties `xml:"Metadata"`
+		OrMetadata additionalProperties `xml:"OrMetadata"`
+	}{
+		alias: (*alias)(p),
+	}
+	if err := dec.DecodeElement(aux, &start); err != nil {
+		return err
+	}
+	p.Metadata = (map[string]*string)(aux.Metadata)
+	p.OrMetadata = (map[string]*string)(aux.OrMetadata)
+	if aux.PathName != nil {
+		if aux.PathName.Encoded != nil && *aux.PathName.Encoded {
+			name, err := url.QueryUnescape(*aux.PathName.Content)
+
+			// name, err := base64.StdEncoding.DecodeString(*aux.PathName.Content)
+			if err != nil {
+				return err
+			}
+			p.Name = to.Ptr(string(name))
+		} else {
+			p.Name = aux.PathName.Content
+		}
+	}
+	return nil
+}