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#include "json_writer.h"
#include <util/charset/utf8.h>
#include <util/generic/algorithm.h>
#include <util/string/cast.h>
#include <util/system/yassert.h>
namespace NJson {
TJsonWriter::TJsonWriter(IOutputStream* out, bool formatOutput, bool sortkeys, bool validateUtf8)
: Out(out)
, Buf(NJsonWriter::HEM_UNSAFE)
, DoubleNDigits(TJsonWriterConfig::DefaultDoubleNDigits)
, FloatNDigits(TJsonWriterConfig::DefaultFloatNDigits)
, FloatToStringMode(TJsonWriterConfig::DefaultFloatToStringMode)
, SortKeys(sortkeys)
, ValidateUtf8(validateUtf8)
, DontEscapeStrings(false)
, DontFlushInDestructor(false)
{
Buf.SetIndentSpaces(formatOutput ? 2 : 0);
}
TJsonWriter::TJsonWriter(IOutputStream* out, const TJsonWriterConfig& config, bool DFID)
: Out(config.Unbuffered ? nullptr : out)
, Buf(NJsonWriter::HEM_UNSAFE, config.Unbuffered ? out : nullptr)
, DoubleNDigits(config.DoubleNDigits)
, FloatNDigits(config.FloatNDigits)
, FloatToStringMode(config.FloatToStringMode)
, SortKeys(config.SortKeys)
, ValidateUtf8(config.ValidateUtf8)
, DontEscapeStrings(config.DontEscapeStrings)
, DontFlushInDestructor(DFID)
{
Buf.SetIndentSpaces(config.FormatOutput ? 2 : 0);
Buf.SetWriteNanAsString(config.WriteNanAsString);
}
TJsonWriter::~TJsonWriter() {
// if we write to socket it's possible to get exception here
// don't use exceptions in destructors
if (!DontFlushInDestructor) {
try {
Flush();
} catch (...) {
}
}
}
void TJsonWriter::Flush() {
if (Out) {
Buf.FlushTo(Out);
}
}
void TJsonWriter::OpenMap() {
Buf.BeginObject();
}
void TJsonWriter::CloseMap() {
Buf.EndObject();
}
void TJsonWriter::OpenArray() {
Buf.BeginList();
}
void TJsonWriter::CloseArray() {
Buf.EndList();
}
void TJsonWriter::Write(const TStringBuf& value) {
if (ValidateUtf8 && !IsUtf(value))
throw yexception() << "JSON writer: invalid UTF-8";
if (Buf.KeyExpected()) {
Buf.WriteKey(value);
} else {
if (DontEscapeStrings) {
Buf.UnsafeWriteValue(TString("\"") + value + '"');
} else {
Buf.WriteString(value);
}
}
}
void TJsonWriter::WriteNull() {
Buf.WriteNull();
}
void TJsonWriter::Write(float value) {
Buf.WriteFloat(value, FloatToStringMode, FloatNDigits);
}
void TJsonWriter::Write(double value) {
Buf.WriteDouble(value, FloatToStringMode, DoubleNDigits);
}
void TJsonWriter::Write(long long value) {
Buf.WriteLongLong(value);
}
void TJsonWriter::Write(unsigned long long value) {
Buf.WriteULongLong(value);
}
void TJsonWriter::Write(bool value) {
Buf.WriteBool(value);
}
namespace {
struct TLessStrPtr {
bool operator()(const TString* a, const TString* b) const {
return *a < *b;
}
};
}
void TJsonWriter::Write(const TJsonValue* v) {
Buf.WriteJsonValue(v, SortKeys, FloatToStringMode, DoubleNDigits);
}
void TJsonWriter::Write(const TJsonValue& v) {
Buf.WriteJsonValue(&v, SortKeys, FloatToStringMode, DoubleNDigits);
}
TString WriteJson(const TJsonValue* value, bool formatOutput, bool sortkeys, bool validateUtf8) {
TStringStream ss;
WriteJson(&ss, value, formatOutput, sortkeys, validateUtf8);
return ss.Str();
}
TString WriteJson(const TJsonValue& value, bool formatOutput, bool sortkeys, bool validateUtf8) {
TStringStream ss;
WriteJson(&ss, &value, formatOutput, sortkeys, validateUtf8);
return ss.Str();
}
void WriteJson(IOutputStream* out, const TJsonValue* val, bool formatOutput, bool sortkeys, bool validateUtf8) {
TJsonWriter w(out, formatOutput, sortkeys, validateUtf8);
w.Write(val);
w.Flush();
}
void WriteJson(IOutputStream* out, const TJsonValue* val, const TJsonWriterConfig& config) {
TJsonWriter w(out, config, true);
w.Write(val);
w.Flush();
}
}
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