Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 1 | // Protocol Buffers - Google's data interchange format |
| 2 | // Copyright 2008 Google Inc. All rights reserved. |
| 3 | // https://developers.google.com/protocol-buffers/ |
| 4 | // |
| 5 | // Redistribution and use in source and binary forms, with or without |
| 6 | // modification, are permitted provided that the following conditions are |
| 7 | // met: |
| 8 | // |
| 9 | // * Redistributions of source code must retain the above copyright |
| 10 | // notice, this list of conditions and the following disclaimer. |
| 11 | // * Redistributions in binary form must reproduce the above |
| 12 | // copyright notice, this list of conditions and the following disclaimer |
| 13 | // in the documentation and/or other materials provided with the |
| 14 | // distribution. |
| 15 | // * Neither the name of Google Inc. nor the names of its |
| 16 | // contributors may be used to endorse or promote products derived from |
| 17 | // this software without specific prior written permission. |
| 18 | // |
| 19 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 20 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 21 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 22 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 23 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 24 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 25 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 26 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 27 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 28 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 29 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | |
| 31 | #include <google/protobuf/util/internal/json_objectwriter.h> |
| 32 | |
| 33 | #include <math.h> |
| 34 | |
| 35 | #include <google/protobuf/stubs/casts.h> |
Feng Xiao | eee38b0 | 2015-08-22 18:25:48 -0700 | [diff] [blame] | 36 | #include <google/protobuf/stubs/logging.h> |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 37 | #include <google/protobuf/stubs/common.h> |
| 38 | #include <google/protobuf/util/internal/utility.h> |
| 39 | #include <google/protobuf/util/internal/json_escaping.h> |
| 40 | #include <google/protobuf/stubs/strutil.h> |
Jisi Liu | 46e8ff6 | 2015-10-05 11:59:43 -0700 | [diff] [blame] | 41 | #include <google/protobuf/stubs/mathlimits.h> |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 42 | |
| 43 | namespace google { |
| 44 | namespace protobuf { |
| 45 | namespace util { |
| 46 | namespace converter { |
| 47 | |
| 48 | using strings::ArrayByteSource; |
| 49 | |
| 50 | JsonObjectWriter::~JsonObjectWriter() { |
| 51 | if (!element_->is_root()) { |
| 52 | GOOGLE_LOG(WARNING) << "JsonObjectWriter was not fully closed."; |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | JsonObjectWriter* JsonObjectWriter::StartObject(StringPiece name) { |
| 57 | WritePrefix(name); |
| 58 | WriteChar('{'); |
| 59 | Push(); |
| 60 | return this; |
| 61 | } |
| 62 | |
| 63 | JsonObjectWriter* JsonObjectWriter::EndObject() { |
| 64 | Pop(); |
| 65 | WriteChar('}'); |
| 66 | if (element()->is_root()) NewLine(); |
| 67 | return this; |
| 68 | } |
| 69 | |
| 70 | JsonObjectWriter* JsonObjectWriter::StartList(StringPiece name) { |
| 71 | WritePrefix(name); |
| 72 | WriteChar('['); |
| 73 | Push(); |
| 74 | return this; |
| 75 | } |
| 76 | |
| 77 | JsonObjectWriter* JsonObjectWriter::EndList() { |
| 78 | Pop(); |
| 79 | WriteChar(']'); |
| 80 | if (element()->is_root()) NewLine(); |
| 81 | return this; |
| 82 | } |
| 83 | |
| 84 | JsonObjectWriter* JsonObjectWriter::RenderBool(StringPiece name, |
Feng Xiao | 818c5ee | 2015-06-15 21:42:57 -0700 | [diff] [blame] | 85 | bool value) { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 86 | return RenderSimple(name, value ? "true" : "false"); |
| 87 | } |
| 88 | |
| 89 | JsonObjectWriter* JsonObjectWriter::RenderInt32(StringPiece name, |
Feng Xiao | 818c5ee | 2015-06-15 21:42:57 -0700 | [diff] [blame] | 90 | int32 value) { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 91 | return RenderSimple(name, SimpleItoa(value)); |
| 92 | } |
| 93 | |
| 94 | JsonObjectWriter* JsonObjectWriter::RenderUint32(StringPiece name, |
Feng Xiao | 818c5ee | 2015-06-15 21:42:57 -0700 | [diff] [blame] | 95 | uint32 value) { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 96 | return RenderSimple(name, SimpleItoa(value)); |
| 97 | } |
| 98 | |
| 99 | JsonObjectWriter* JsonObjectWriter::RenderInt64(StringPiece name, |
Feng Xiao | 818c5ee | 2015-06-15 21:42:57 -0700 | [diff] [blame] | 100 | int64 value) { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 101 | WritePrefix(name); |
| 102 | WriteChar('"'); |
| 103 | stream_->WriteString(SimpleItoa(value)); |
| 104 | WriteChar('"'); |
| 105 | return this; |
| 106 | } |
| 107 | |
| 108 | JsonObjectWriter* JsonObjectWriter::RenderUint64(StringPiece name, |
Feng Xiao | 818c5ee | 2015-06-15 21:42:57 -0700 | [diff] [blame] | 109 | uint64 value) { |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 110 | WritePrefix(name); |
| 111 | WriteChar('"'); |
| 112 | stream_->WriteString(SimpleItoa(value)); |
| 113 | WriteChar('"'); |
| 114 | return this; |
| 115 | } |
| 116 | |
| 117 | JsonObjectWriter* JsonObjectWriter::RenderDouble(StringPiece name, |
Feng Xiao | 818c5ee | 2015-06-15 21:42:57 -0700 | [diff] [blame] | 118 | double value) { |
Jisi Liu | 46e8ff6 | 2015-10-05 11:59:43 -0700 | [diff] [blame] | 119 | if (MathLimits<double>::IsFinite(value)) { |
Bo Yang | ff7bdad | 2015-08-23 10:45:14 -0700 | [diff] [blame] | 120 | return RenderSimple(name, SimpleDtoa(value)); |
| 121 | } |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 122 | |
| 123 | // Render quoted with NaN/Infinity-aware DoubleAsString. |
| 124 | return RenderString(name, DoubleAsString(value)); |
| 125 | } |
| 126 | |
| 127 | JsonObjectWriter* JsonObjectWriter::RenderFloat(StringPiece name, |
Feng Xiao | 818c5ee | 2015-06-15 21:42:57 -0700 | [diff] [blame] | 128 | float value) { |
Jisi Liu | 46e8ff6 | 2015-10-05 11:59:43 -0700 | [diff] [blame] | 129 | if (MathLimits<float>::IsFinite(value)) { |
Bo Yang | ff7bdad | 2015-08-23 10:45:14 -0700 | [diff] [blame] | 130 | return RenderSimple(name, SimpleFtoa(value)); |
| 131 | } |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 132 | |
| 133 | // Render quoted with NaN/Infinity-aware FloatAsString. |
| 134 | return RenderString(name, FloatAsString(value)); |
| 135 | } |
| 136 | |
| 137 | JsonObjectWriter* JsonObjectWriter::RenderString(StringPiece name, |
| 138 | StringPiece value) { |
| 139 | WritePrefix(name); |
| 140 | WriteChar('"'); |
| 141 | ArrayByteSource source(value); |
| 142 | JsonEscaping::Escape(&source, &sink_); |
| 143 | WriteChar('"'); |
| 144 | return this; |
| 145 | } |
| 146 | |
| 147 | JsonObjectWriter* JsonObjectWriter::RenderBytes(StringPiece name, |
| 148 | StringPiece value) { |
| 149 | WritePrefix(name); |
| 150 | string base64; |
Feng Xiao | eee38b0 | 2015-08-22 18:25:48 -0700 | [diff] [blame] | 151 | Base64Escape(value, &base64); |
Feng Xiao | e96ff30 | 2015-06-15 18:21:48 -0700 | [diff] [blame] | 152 | WriteChar('"'); |
| 153 | // TODO(wpoon): Consider a ByteSink solution that writes the base64 bytes |
| 154 | // directly to the stream, rather than first putting them |
| 155 | // into a string and then writing them to the stream. |
| 156 | stream_->WriteRaw(base64.data(), base64.size()); |
| 157 | WriteChar('"'); |
| 158 | return this; |
| 159 | } |
| 160 | |
| 161 | JsonObjectWriter* JsonObjectWriter::RenderNull(StringPiece name) { |
| 162 | return RenderSimple(name, "null"); |
| 163 | } |
| 164 | |
| 165 | void JsonObjectWriter::WritePrefix(StringPiece name) { |
| 166 | bool not_first = !element()->is_first(); |
| 167 | if (not_first) WriteChar(','); |
| 168 | if (not_first || !element()->is_root()) NewLine(); |
| 169 | if (!name.empty()) { |
| 170 | WriteChar('"'); |
| 171 | ArrayByteSource source(name); |
| 172 | JsonEscaping::Escape(&source, &sink_); |
| 173 | stream_->WriteString("\":"); |
| 174 | if (!indent_string_.empty()) WriteChar(' '); |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | } // namespace converter |
| 179 | } // namespace util |
| 180 | } // namespace protobuf |
| 181 | } // namespace google |