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-rw-r--r--src/kube2msb/vendor/github.com/emicklei/go-restful/entity_accessors.go163
1 files changed, 163 insertions, 0 deletions
diff --git a/src/kube2msb/vendor/github.com/emicklei/go-restful/entity_accessors.go b/src/kube2msb/vendor/github.com/emicklei/go-restful/entity_accessors.go
new file mode 100644
index 0000000..6ecf6c7
--- /dev/null
+++ b/src/kube2msb/vendor/github.com/emicklei/go-restful/entity_accessors.go
@@ -0,0 +1,163 @@
+package restful
+
+// Copyright 2015 Ernest Micklei. All rights reserved.
+// Use of this source code is governed by a license
+// that can be found in the LICENSE file.
+
+import (
+ "encoding/json"
+ "encoding/xml"
+ "strings"
+ "sync"
+)
+
+// EntityReaderWriter can read and write values using an encoding such as JSON,XML.
+type EntityReaderWriter interface {
+ // Read a serialized version of the value from the request.
+ // The Request may have a decompressing reader. Depends on Content-Encoding.
+ Read(req *Request, v interface{}) error
+
+ // Write a serialized version of the value on the response.
+ // The Response may have a compressing writer. Depends on Accept-Encoding.
+ // status should be a valid Http Status code
+ Write(resp *Response, status int, v interface{}) error
+}
+
+// entityAccessRegistry is a singleton
+var entityAccessRegistry = &entityReaderWriters{
+ protection: new(sync.RWMutex),
+ accessors: map[string]EntityReaderWriter{},
+}
+
+// entityReaderWriters associates MIME to an EntityReaderWriter
+type entityReaderWriters struct {
+ protection *sync.RWMutex
+ accessors map[string]EntityReaderWriter
+}
+
+func init() {
+ RegisterEntityAccessor(MIME_JSON, NewEntityAccessorJSON(MIME_JSON))
+ RegisterEntityAccessor(MIME_XML, NewEntityAccessorXML(MIME_XML))
+}
+
+// RegisterEntityAccessor add/overrides the ReaderWriter for encoding content with this MIME type.
+func RegisterEntityAccessor(mime string, erw EntityReaderWriter) {
+ entityAccessRegistry.protection.Lock()
+ defer entityAccessRegistry.protection.Unlock()
+ entityAccessRegistry.accessors[mime] = erw
+}
+
+// NewEntityAccessorJSON returns a new EntityReaderWriter for accessing JSON content.
+// This package is already initialized with such an accessor using the MIME_JSON contentType.
+func NewEntityAccessorJSON(contentType string) EntityReaderWriter {
+ return entityJSONAccess{ContentType: contentType}
+}
+
+// NewEntityAccessorXML returns a new EntityReaderWriter for accessing XML content.
+// This package is already initialized with such an accessor using the MIME_XML contentType.
+func NewEntityAccessorXML(contentType string) EntityReaderWriter {
+ return entityXMLAccess{ContentType: contentType}
+}
+
+// accessorAt returns the registered ReaderWriter for this MIME type.
+func (r *entityReaderWriters) accessorAt(mime string) (EntityReaderWriter, bool) {
+ r.protection.RLock()
+ defer r.protection.RUnlock()
+ er, ok := r.accessors[mime]
+ if !ok {
+ // retry with reverse lookup
+ // more expensive but we are in an exceptional situation anyway
+ for k, v := range r.accessors {
+ if strings.Contains(mime, k) {
+ return v, true
+ }
+ }
+ }
+ return er, ok
+}
+
+// entityXMLAccess is a EntityReaderWriter for XML encoding
+type entityXMLAccess struct {
+ // This is used for setting the Content-Type header when writing
+ ContentType string
+}
+
+// Read unmarshalls the value from XML
+func (e entityXMLAccess) Read(req *Request, v interface{}) error {
+ return xml.NewDecoder(req.Request.Body).Decode(v)
+}
+
+// Write marshalls the value to JSON and set the Content-Type Header.
+func (e entityXMLAccess) Write(resp *Response, status int, v interface{}) error {
+ return writeXML(resp, status, e.ContentType, v)
+}
+
+// writeXML marshalls the value to JSON and set the Content-Type Header.
+func writeXML(resp *Response, status int, contentType string, v interface{}) error {
+ if v == nil {
+ resp.WriteHeader(status)
+ // do not write a nil representation
+ return nil
+ }
+ if resp.prettyPrint {
+ // pretty output must be created and written explicitly
+ output, err := xml.MarshalIndent(v, " ", " ")
+ if err != nil {
+ return err
+ }
+ resp.Header().Set(HEADER_ContentType, contentType)
+ resp.WriteHeader(status)
+ _, err = resp.Write([]byte(xml.Header))
+ if err != nil {
+ return err
+ }
+ _, err = resp.Write(output)
+ return err
+ }
+ // not-so-pretty
+ resp.Header().Set(HEADER_ContentType, contentType)
+ resp.WriteHeader(status)
+ return xml.NewEncoder(resp).Encode(v)
+}
+
+// entityJSONAccess is a EntityReaderWriter for JSON encoding
+type entityJSONAccess struct {
+ // This is used for setting the Content-Type header when writing
+ ContentType string
+}
+
+// Read unmarshalls the value from JSON
+func (e entityJSONAccess) Read(req *Request, v interface{}) error {
+ decoder := json.NewDecoder(req.Request.Body)
+ decoder.UseNumber()
+ return decoder.Decode(v)
+}
+
+// Write marshalls the value to JSON and set the Content-Type Header.
+func (e entityJSONAccess) Write(resp *Response, status int, v interface{}) error {
+ return writeJSON(resp, status, e.ContentType, v)
+}
+
+// write marshalls the value to JSON and set the Content-Type Header.
+func writeJSON(resp *Response, status int, contentType string, v interface{}) error {
+ if v == nil {
+ resp.WriteHeader(status)
+ // do not write a nil representation
+ return nil
+ }
+ if resp.prettyPrint {
+ // pretty output must be created and written explicitly
+ output, err := json.MarshalIndent(v, " ", " ")
+ if err != nil {
+ return err
+ }
+ resp.Header().Set(HEADER_ContentType, contentType)
+ resp.WriteHeader(status)
+ _, err = resp.Write(output)
+ return err
+ }
+ // not-so-pretty
+ resp.Header().Set(HEADER_ContentType, contentType)
+ resp.WriteHeader(status)
+ return json.NewEncoder(resp).Encode(v)
+}