Check in the vendor directory

Travis seems to be having issues pulling deps, so we'll have to check in
the vendor directory and prevent the makefile from trying to regenerate
it normally.

vendor/github.com/emicklei/go-restful/entity_accessors.go

@@ -0,0 +1,169 @@
+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"
+	"io"
+	"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
+}
+
+// JSONNewDecoderFunc can be used to inject a different configration for the json Decoder instance.
+var JSONNewDecoderFunc = func(r io.Reader) *json.Decoder {
+	decoder := json.NewDecoder(r)
+	decoder.UseNumber()
+	return decoder
+}
+
+// Read unmarshalls the value from JSON
+func (e entityJSONAccess) Read(req *Request, v interface{}) error {
+	return JSONNewDecoderFunc(req.Request.Body).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)
+}