diff options
Diffstat (limited to 'src/google/protobuf/util/internal/json_objectwriter.h')
| -rw-r--r-- | src/google/protobuf/util/internal/json_objectwriter.h | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/src/google/protobuf/util/internal/json_objectwriter.h b/src/google/protobuf/util/internal/json_objectwriter.h deleted file mode 100644 index cb7e2fb3..00000000 --- a/src/google/protobuf/util/internal/json_objectwriter.h +++ /dev/null @@ -1,215 +0,0 @@ -// Protocol Buffers - Google's data interchange format -// Copyright 2008 Google Inc. All rights reserved. -// https://developers.google.com/protocol-buffers/ -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -#ifndef GOOGLE_PROTOBUF_UTIL_CONVERTER_JSON_OBJECTWRITER_H__ -#define GOOGLE_PROTOBUF_UTIL_CONVERTER_JSON_OBJECTWRITER_H__ - -#include <memory> -#ifndef _SHARED_PTR_H -#include <google/protobuf/stubs/shared_ptr.h> -#endif -#include <string> - -#include <google/protobuf/io/coded_stream.h> -#include <google/protobuf/util/internal/structured_objectwriter.h> -#include <google/protobuf/stubs/bytestream.h> - -namespace google { -namespace protobuf { -namespace util { -namespace converter { - -// An ObjectWriter implementation that outputs JSON. This ObjectWriter -// supports writing a compact form or a pretty printed form. -// -// Sample usage: -// string output; -// StringOutputStream* str_stream = new StringOutputStream(&output); -// CodedOutputStream* out_stream = new CodedOutputStream(str_stream); -// JsonObjectWriter* ow = new JsonObjectWriter(" ", out_stream); -// ow->StartObject("") -// ->RenderString("name", "value") -// ->RenderString("emptystring", string()) -// ->StartObject("nested") -// ->RenderInt64("light", 299792458); -// ->RenderDouble("pi", 3.141592653589793); -// ->EndObject() -// ->StartList("empty") -// ->EndList() -// ->EndObject(); -// -// And then the output string would become: -// { -// "name": "value", -// "emptystring": "", -// "nested": { -// "light": "299792458", -// "pi": 3.141592653589793 -// }, -// "empty": [] -// } -// -// JsonObjectWriter does not validate if calls actually result in valid JSON. -// For example, passing an empty name when one would be required won't result -// in an error, just an invalid output. -// -// Note that all int64 and uint64 are rendered as strings instead of numbers. -// This is because JavaScript parses numbers as 64-bit float thus int64 and -// uint64 would lose precision if rendered as numbers. -// -// JsonObjectWriter is thread-unsafe. -class LIBPROTOBUF_EXPORT JsonObjectWriter : public StructuredObjectWriter { - public: - JsonObjectWriter(StringPiece indent_string, - google::protobuf::io::CodedOutputStream* out) - : element_(new Element(NULL)), - stream_(out), - sink_(out), - indent_string_(indent_string.ToString()), - use_websafe_base64_for_bytes_(false) {} - virtual ~JsonObjectWriter(); - - // ObjectWriter methods. - virtual JsonObjectWriter* StartObject(StringPiece name); - virtual JsonObjectWriter* EndObject(); - virtual JsonObjectWriter* StartList(StringPiece name); - virtual JsonObjectWriter* EndList(); - virtual JsonObjectWriter* RenderBool(StringPiece name, bool value); - virtual JsonObjectWriter* RenderInt32(StringPiece name, int32 value); - virtual JsonObjectWriter* RenderUint32(StringPiece name, uint32 value); - virtual JsonObjectWriter* RenderInt64(StringPiece name, int64 value); - virtual JsonObjectWriter* RenderUint64(StringPiece name, uint64 value); - virtual JsonObjectWriter* RenderDouble(StringPiece name, double value); - virtual JsonObjectWriter* RenderFloat(StringPiece name, float value); - virtual JsonObjectWriter* RenderString(StringPiece name, StringPiece value); - virtual JsonObjectWriter* RenderBytes(StringPiece name, StringPiece value); - virtual JsonObjectWriter* RenderNull(StringPiece name); - - void set_use_websafe_base64_for_bytes(bool value) { - use_websafe_base64_for_bytes_ = value; - } - - protected: - class LIBPROTOBUF_EXPORT Element : public BaseElement { - public: - explicit Element(Element* parent) : BaseElement(parent), is_first_(true) {} - - // Called before each field of the Element is to be processed. - // Returns true if this is the first call (processing the first field). - bool is_first() { - if (is_first_) { - is_first_ = false; - return true; - } - return false; - } - - private: - bool is_first_; - - GOOGLE_DISALLOW_IMPLICIT_CONSTRUCTORS(Element); - }; - - virtual Element* element() { return element_.get(); } - - private: - class LIBPROTOBUF_EXPORT ByteSinkWrapper : public strings::ByteSink { - public: - explicit ByteSinkWrapper(google::protobuf::io::CodedOutputStream* stream) - : stream_(stream) {} - virtual ~ByteSinkWrapper() {} - - // ByteSink methods. - virtual void Append(const char* bytes, size_t n) { - stream_->WriteRaw(bytes, n); - } - - private: - google::protobuf::io::CodedOutputStream* stream_; - - GOOGLE_DISALLOW_EVIL_CONSTRUCTORS(ByteSinkWrapper); - }; - - // Renders a simple value as a string. By default all non-string Render - // methods convert their argument to a string and call this method. This - // method can then be used to render the simple value without escaping it. - JsonObjectWriter* RenderSimple(StringPiece name, const string& value) { - WritePrefix(name); - stream_->WriteString(value); - return this; - } - - // Pushes a new element to the stack. - void Push() { element_.reset(new Element(element_.release())); } - - // Pops an element off of the stack and deletes the popped element. - void Pop() { - bool needs_newline = !element_->is_first(); - element_.reset(element_->pop<Element>()); - if (needs_newline) NewLine(); - } - - // If pretty printing is enabled, this will write a newline to the output, - // followed by optional indentation. Otherwise this method is a noop. - void NewLine() { - if (!indent_string_.empty()) { - WriteChar('\n'); - for (int i = 0; i < element()->level(); i++) { - stream_->WriteString(indent_string_); - } - } - } - - // Writes a prefix. This will write out any pretty printing and - // commas that are required, followed by the name and a ':' if - // the name is not null. - void WritePrefix(StringPiece name); - - // Writes an individual character to the output. - void WriteChar(const char c) { stream_->WriteRaw(&c, sizeof(c)); } - - google::protobuf::scoped_ptr<Element> element_; - google::protobuf::io::CodedOutputStream* stream_; - ByteSinkWrapper sink_; - const string indent_string_; - - // Whether to use regular or websafe base64 encoding for byte fields. Defaults - // to regular base64 encoding. - bool use_websafe_base64_for_bytes_; - - GOOGLE_DISALLOW_IMPLICIT_CONSTRUCTORS(JsonObjectWriter); -}; - -} // namespace converter -} // namespace util -} // namespace protobuf - -} // namespace google -#endif // GOOGLE_PROTOBUF_UTIL_CONVERTER_JSON_OBJECTWRITER_H__ |