Index: third_party/protobuf/src/google/protobuf/util/internal/protostream_objectwriter.cc |
diff --git a/third_party/protobuf/src/google/protobuf/util/internal/protostream_objectwriter.cc b/third_party/protobuf/src/google/protobuf/util/internal/protostream_objectwriter.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..f9ddbf326d4c58b7b84c82dac2d24e2b9c0ef203 |
--- /dev/null |
+++ b/third_party/protobuf/src/google/protobuf/util/internal/protostream_objectwriter.cc |
@@ -0,0 +1,1557 @@ |
+// 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. |
+ |
+#include <google/protobuf/util/internal/protostream_objectwriter.h> |
+ |
+#include <functional> |
+#include <stack> |
+ |
+#include <google/protobuf/stubs/time.h> |
+#include <google/protobuf/wire_format_lite.h> |
+#include <google/protobuf/util/internal/field_mask_utility.h> |
+#include <google/protobuf/util/internal/object_location_tracker.h> |
+#include <google/protobuf/util/internal/constants.h> |
+#include <google/protobuf/util/internal/utility.h> |
+#include <google/protobuf/stubs/strutil.h> |
+#include <google/protobuf/stubs/map_util.h> |
+#include <google/protobuf/stubs/statusor.h> |
+ |
+ |
+namespace google { |
+namespace protobuf { |
+namespace util { |
+namespace converter { |
+ |
+using google::protobuf::internal::WireFormatLite; |
+using google::protobuf::io::CodedOutputStream; |
+using util::error::INVALID_ARGUMENT; |
+using util::Status; |
+using util::StatusOr; |
+ |
+ |
+ProtoStreamObjectWriter::ProtoStreamObjectWriter( |
+ TypeResolver* type_resolver, const google::protobuf::Type& type, |
+ strings::ByteSink* output, ErrorListener* listener) |
+ : master_type_(type), |
+ typeinfo_(TypeInfo::NewTypeInfo(type_resolver)), |
+ own_typeinfo_(true), |
+ done_(false), |
+ element_(NULL), |
+ size_insert_(), |
+ output_(output), |
+ buffer_(), |
+ adapter_(&buffer_), |
+ stream_(new CodedOutputStream(&adapter_)), |
+ listener_(listener), |
+ invalid_depth_(0), |
+ tracker_(new ObjectLocationTracker()) {} |
+ |
+ProtoStreamObjectWriter::ProtoStreamObjectWriter( |
+ TypeInfo* typeinfo, const google::protobuf::Type& type, |
+ strings::ByteSink* output, ErrorListener* listener) |
+ : master_type_(type), |
+ typeinfo_(typeinfo), |
+ own_typeinfo_(false), |
+ done_(false), |
+ element_(NULL), |
+ size_insert_(), |
+ output_(output), |
+ buffer_(), |
+ adapter_(&buffer_), |
+ stream_(new CodedOutputStream(&adapter_)), |
+ listener_(listener), |
+ invalid_depth_(0), |
+ tracker_(new ObjectLocationTracker()) {} |
+ |
+ProtoStreamObjectWriter::~ProtoStreamObjectWriter() { |
+ // Cleanup explicitly in order to avoid destructor stack overflow when input |
+ // is deeply nested. |
+ while (element_ != NULL) { |
+ element_.reset(element_->pop()); |
+ } |
+ if (own_typeinfo_) { |
+ delete typeinfo_; |
+ } |
+} |
+ |
+namespace { |
+ |
+// Writes an INT32 field, including tag to the stream. |
+inline Status WriteInt32(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<int32> i32 = data.ToInt32(); |
+ if (i32.ok()) { |
+ WireFormatLite::WriteInt32(field_number, i32.ValueOrDie(), stream); |
+ } |
+ return i32.status(); |
+} |
+ |
+// writes an SFIXED32 field, including tag, to the stream. |
+inline Status WriteSFixed32(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<int32> i32 = data.ToInt32(); |
+ if (i32.ok()) { |
+ WireFormatLite::WriteSFixed32(field_number, i32.ValueOrDie(), stream); |
+ } |
+ return i32.status(); |
+} |
+ |
+// Writes an SINT32 field, including tag, to the stream. |
+inline Status WriteSInt32(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<int32> i32 = data.ToInt32(); |
+ if (i32.ok()) { |
+ WireFormatLite::WriteSInt32(field_number, i32.ValueOrDie(), stream); |
+ } |
+ return i32.status(); |
+} |
+ |
+// Writes a FIXED32 field, including tag, to the stream. |
+inline Status WriteFixed32(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<uint32> u32 = data.ToUint32(); |
+ if (u32.ok()) { |
+ WireFormatLite::WriteFixed32(field_number, u32.ValueOrDie(), stream); |
+ } |
+ return u32.status(); |
+} |
+ |
+// Writes a UINT32 field, including tag, to the stream. |
+inline Status WriteUInt32(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<uint32> u32 = data.ToUint32(); |
+ if (u32.ok()) { |
+ WireFormatLite::WriteUInt32(field_number, u32.ValueOrDie(), stream); |
+ } |
+ return u32.status(); |
+} |
+ |
+// Writes an INT64 field, including tag, to the stream. |
+inline Status WriteInt64(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<int64> i64 = data.ToInt64(); |
+ if (i64.ok()) { |
+ WireFormatLite::WriteInt64(field_number, i64.ValueOrDie(), stream); |
+ } |
+ return i64.status(); |
+} |
+ |
+// Writes an SFIXED64 field, including tag, to the stream. |
+inline Status WriteSFixed64(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<int64> i64 = data.ToInt64(); |
+ if (i64.ok()) { |
+ WireFormatLite::WriteSFixed64(field_number, i64.ValueOrDie(), stream); |
+ } |
+ return i64.status(); |
+} |
+ |
+// Writes an SINT64 field, including tag, to the stream. |
+inline Status WriteSInt64(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<int64> i64 = data.ToInt64(); |
+ if (i64.ok()) { |
+ WireFormatLite::WriteSInt64(field_number, i64.ValueOrDie(), stream); |
+ } |
+ return i64.status(); |
+} |
+ |
+// Writes a FIXED64 field, including tag, to the stream. |
+inline Status WriteFixed64(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<uint64> u64 = data.ToUint64(); |
+ if (u64.ok()) { |
+ WireFormatLite::WriteFixed64(field_number, u64.ValueOrDie(), stream); |
+ } |
+ return u64.status(); |
+} |
+ |
+// Writes a UINT64 field, including tag, to the stream. |
+inline Status WriteUInt64(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<uint64> u64 = data.ToUint64(); |
+ if (u64.ok()) { |
+ WireFormatLite::WriteUInt64(field_number, u64.ValueOrDie(), stream); |
+ } |
+ return u64.status(); |
+} |
+ |
+// Writes a DOUBLE field, including tag, to the stream. |
+inline Status WriteDouble(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<double> d = data.ToDouble(); |
+ if (d.ok()) { |
+ WireFormatLite::WriteDouble(field_number, d.ValueOrDie(), stream); |
+ } |
+ return d.status(); |
+} |
+ |
+// Writes a FLOAT field, including tag, to the stream. |
+inline Status WriteFloat(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<float> f = data.ToFloat(); |
+ if (f.ok()) { |
+ WireFormatLite::WriteFloat(field_number, f.ValueOrDie(), stream); |
+ } |
+ return f.status(); |
+} |
+ |
+// Writes a BOOL field, including tag, to the stream. |
+inline Status WriteBool(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<bool> b = data.ToBool(); |
+ if (b.ok()) { |
+ WireFormatLite::WriteBool(field_number, b.ValueOrDie(), stream); |
+ } |
+ return b.status(); |
+} |
+ |
+// Writes a BYTES field, including tag, to the stream. |
+inline Status WriteBytes(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<string> c = data.ToBytes(); |
+ if (c.ok()) { |
+ WireFormatLite::WriteBytes(field_number, c.ValueOrDie(), stream); |
+ } |
+ return c.status(); |
+} |
+ |
+// Writes a STRING field, including tag, to the stream. |
+inline Status WriteString(int field_number, const DataPiece& data, |
+ CodedOutputStream* stream) { |
+ StatusOr<string> s = data.ToString(); |
+ if (s.ok()) { |
+ WireFormatLite::WriteString(field_number, s.ValueOrDie(), stream); |
+ } |
+ return s.status(); |
+} |
+ |
+// Writes an ENUM field, including tag, to the stream. |
+inline Status WriteEnum(int field_number, const DataPiece& data, |
+ const google::protobuf::Enum* enum_type, |
+ CodedOutputStream* stream) { |
+ StatusOr<int> e = data.ToEnum(enum_type); |
+ if (e.ok()) { |
+ WireFormatLite::WriteEnum(field_number, e.ValueOrDie(), stream); |
+ } |
+ return e.status(); |
+} |
+ |
+// Given a google::protobuf::Type, returns the set of all required fields. |
+std::set<const google::protobuf::Field*> GetRequiredFields( |
+ const google::protobuf::Type& type) { |
+ std::set<const google::protobuf::Field*> required; |
+ for (int i = 0; i < type.fields_size(); i++) { |
+ const google::protobuf::Field& field = type.fields(i); |
+ if (field.cardinality() == |
+ google::protobuf::Field_Cardinality_CARDINALITY_REQUIRED) { |
+ required.insert(&field); |
+ } |
+ } |
+ return required; |
+} |
+ |
+// Utility method to split a string representation of Timestamp or Duration and |
+// return the parts. |
+void SplitSecondsAndNanos(StringPiece input, StringPiece* seconds, |
+ StringPiece* nanos) { |
+ size_t idx = input.rfind('.'); |
+ if (idx != string::npos) { |
+ *seconds = input.substr(0, idx); |
+ *nanos = input.substr(idx + 1); |
+ } else { |
+ *seconds = input; |
+ *nanos = StringPiece(); |
+ } |
+} |
+ |
+} // namespace |
+ |
+ProtoStreamObjectWriter::AnyWriter::AnyWriter(ProtoStreamObjectWriter* parent) |
+ : parent_(parent), |
+ ow_(), |
+ invalid_(false), |
+ data_(), |
+ output_(&data_), |
+ depth_(0), |
+ has_injected_value_message_(false) {} |
+ |
+ProtoStreamObjectWriter::AnyWriter::~AnyWriter() {} |
+ |
+void ProtoStreamObjectWriter::AnyWriter::StartObject(StringPiece name) { |
+ ++depth_; |
+ // If an object writer is absent, that means we have not called StartAny() |
+ // before reaching here. This is an invalid state. StartAny() gets called |
+ // whenever we see an "@type" being rendered (see AnyWriter::RenderDataPiece). |
+ if (ow_ == NULL) { |
+ // Make sure we are not already in an invalid state. This avoids making |
+ // multiple unnecessary InvalidValue calls. |
+ if (!invalid_) { |
+ parent_->InvalidValue("Any", |
+ StrCat("Missing or invalid @type for any field in ", |
+ parent_->master_type_.name())); |
+ invalid_ = true; |
+ } |
+ } else if (!has_injected_value_message_ || depth_ != 1 || name != "value") { |
+ // We don't propagate to ow_ StartObject("value") calls for nested Anys or |
+ // Struct at depth 1 as they are nested one level deep with an injected |
+ // "value" field. |
+ ow_->StartObject(name); |
+ } |
+} |
+ |
+bool ProtoStreamObjectWriter::AnyWriter::EndObject() { |
+ --depth_; |
+ // As long as depth_ >= 0, we know we haven't reached the end of Any. |
+ // Propagate these EndObject() calls to the contained ow_. If we are in a |
+ // nested Any or Struct type, ignore the second to last EndObject call (depth_ |
+ // == -1) |
+ if (ow_ != NULL && (!has_injected_value_message_ || depth_ >= 0)) { |
+ ow_->EndObject(); |
+ } |
+ // A negative depth_ implies that we have reached the end of Any |
+ // object. Now we write out its contents. |
+ if (depth_ < 0) { |
+ WriteAny(); |
+ return false; |
+ } |
+ return true; |
+} |
+ |
+void ProtoStreamObjectWriter::AnyWriter::StartList(StringPiece name) { |
+ ++depth_; |
+ // We expect ow_ to be present as this call only makes sense inside an Any. |
+ if (ow_ == NULL) { |
+ if (!invalid_) { |
+ parent_->InvalidValue("Any", |
+ StrCat("Missing or invalid @type for any field in ", |
+ parent_->master_type_.name())); |
+ invalid_ = true; |
+ } |
+ } else { |
+ ow_->StartList(name); |
+ } |
+} |
+ |
+void ProtoStreamObjectWriter::AnyWriter::EndList() { |
+ --depth_; |
+ if (depth_ < 0) { |
+ GOOGLE_LOG(DFATAL) << "Mismatched EndList found, should not be possible"; |
+ depth_ = 0; |
+ } |
+ // We don't write an error on the close, only on the open |
+ if (ow_ != NULL) { |
+ ow_->EndList(); |
+ } |
+} |
+ |
+void ProtoStreamObjectWriter::AnyWriter::RenderDataPiece( |
+ StringPiece name, const DataPiece& value) { |
+ // Start an Any only at depth_ 0. Other RenderDataPiece calls with "@type" |
+ // should go to the contained ow_ as they indicate nested Anys. |
+ if (depth_ == 0 && ow_ == NULL && name == "@type") { |
+ StartAny(value); |
+ } else if (ow_ == NULL) { |
+ if (!invalid_) { |
+ parent_->InvalidValue("Any", |
+ StrCat("Missing or invalid @type for any field in ", |
+ parent_->master_type_.name())); |
+ invalid_ = true; |
+ } |
+ } else { |
+ // Check to see if the data needs to be rendered with well-known-type |
+ // renderer. |
+ const TypeRenderer* type_renderer = |
+ FindTypeRenderer(GetFullTypeWithUrl(ow_->master_type_.name())); |
+ if (type_renderer) { |
+ // TODO(rikka): Don't just ignore the util::Status object! |
+ (*type_renderer)(ow_.get(), value); |
+ } else { |
+ ow_->RenderDataPiece(name, value); |
+ } |
+ } |
+} |
+ |
+void ProtoStreamObjectWriter::AnyWriter::StartAny(const DataPiece& value) { |
+ // Figure out the type url. This is a copy-paste from WriteString but we also |
+ // need the value, so we can't just call through to that. |
+ if (value.type() == DataPiece::TYPE_STRING) { |
+ type_url_ = value.str().ToString(); |
+ } else { |
+ StatusOr<string> s = value.ToString(); |
+ if (!s.ok()) { |
+ parent_->InvalidValue("String", s.status().error_message()); |
+ invalid_ = true; |
+ return; |
+ } |
+ type_url_ = s.ValueOrDie(); |
+ } |
+ // Resolve the type url, and report an error if we failed to resolve it. |
+ StatusOr<const google::protobuf::Type*> resolved_type = |
+ parent_->typeinfo_->ResolveTypeUrl(type_url_); |
+ if (!resolved_type.ok()) { |
+ parent_->InvalidValue("Any", resolved_type.status().error_message()); |
+ invalid_ = true; |
+ return; |
+ } |
+ // At this point, type is never null. |
+ const google::protobuf::Type* type = resolved_type.ValueOrDie(); |
+ |
+ // If this is the case of an Any in an Any or Struct in an Any, we need to |
+ // expect a StartObject call with "value" while we're at depth_ 0, which we |
+ // should ignore (not propagate to our nested object writer). We also need to |
+ // ignore the second-to-last EndObject call, and not propagate that either. |
+ if (type->name() == kAnyType || type->name() == kStructType) { |
+ has_injected_value_message_ = true; |
+ } |
+ |
+ // Create our object writer and initialize it with the first StartObject |
+ // call. |
+ ow_.reset(new ProtoStreamObjectWriter(parent_->typeinfo_, *type, &output_, |
+ parent_->listener_)); |
+ ow_->StartObject(""); |
+} |
+ |
+void ProtoStreamObjectWriter::AnyWriter::WriteAny() { |
+ if (ow_ == NULL) { |
+ // If we had no object writer, we never got any content, so just return |
+ // immediately, which is equivalent to writing an empty Any. |
+ return; |
+ } |
+ // Render the type_url and value fields directly to the stream. |
+ // type_url has tag 1 and value has tag 2. |
+ WireFormatLite::WriteString(1, type_url_, parent_->stream_.get()); |
+ if (!data_.empty()) { |
+ WireFormatLite::WriteBytes(2, data_, parent_->stream_.get()); |
+ } |
+} |
+ |
+ProtoStreamObjectWriter::ProtoElement::ProtoElement( |
+ TypeInfo* typeinfo, const google::protobuf::Type& type, |
+ ProtoStreamObjectWriter* enclosing) |
+ : BaseElement(NULL), |
+ ow_(enclosing), |
+ any_(), |
+ field_(NULL), |
+ typeinfo_(typeinfo), |
+ type_(type), |
+ required_fields_(GetRequiredFields(type)), |
+ is_repeated_type_(false), |
+ size_index_(-1), |
+ array_index_(-1), |
+ element_type_(GetElementType(type_)) { |
+ if (element_type_ == ANY) { |
+ any_.reset(new AnyWriter(ow_)); |
+ } |
+} |
+ |
+ProtoStreamObjectWriter::ProtoElement::ProtoElement( |
+ ProtoStreamObjectWriter::ProtoElement* parent, |
+ const google::protobuf::Field* field, const google::protobuf::Type& type, |
+ ElementType element_type) |
+ : BaseElement(parent), |
+ ow_(this->parent()->ow_), |
+ any_(), |
+ field_(field), |
+ typeinfo_(this->parent()->typeinfo_), |
+ type_(type), |
+ is_repeated_type_(element_type == ProtoElement::LIST || |
+ element_type == ProtoElement::STRUCT_LIST || |
+ element_type == ProtoElement::MAP || |
+ element_type == ProtoElement::STRUCT_MAP), |
+ size_index_(!is_repeated_type_ && |
+ field->kind() == |
+ google::protobuf::Field_Kind_TYPE_MESSAGE |
+ ? ow_->size_insert_.size() |
+ : -1), |
+ array_index_(is_repeated_type_ ? 0 : -1), |
+ element_type_(element_type) { |
+ if (!is_repeated_type_) { |
+ if (field->cardinality() == |
+ google::protobuf::Field_Cardinality_CARDINALITY_REPEATED) { |
+ // Update array_index_ if it is an explicit list. |
+ if (this->parent()->array_index_ >= 0) this->parent()->array_index_++; |
+ } else { |
+ this->parent()->RegisterField(field); |
+ } |
+ if (field->kind() == google::protobuf::Field_Kind_TYPE_MESSAGE) { |
+ required_fields_ = GetRequiredFields(type_); |
+ int start_pos = ow_->stream_->ByteCount(); |
+ // length of serialized message is the final buffer position minus |
+ // starting buffer position, plus length adjustments for size fields |
+ // of any nested messages. We start with -start_pos here, so we only |
+ // need to add the final buffer position to it at the end. |
+ SizeInfo info = {start_pos, -start_pos}; |
+ ow_->size_insert_.push_back(info); |
+ } |
+ } |
+ if (element_type == ANY) { |
+ any_.reset(new AnyWriter(ow_)); |
+ } |
+} |
+ |
+ProtoStreamObjectWriter::ProtoElement* |
+ProtoStreamObjectWriter::ProtoElement::pop() { |
+ // Calls the registered error listener for any required field(s) not yet |
+ // seen. |
+ for (set<const google::protobuf::Field*>::iterator it = |
+ required_fields_.begin(); |
+ it != required_fields_.end(); ++it) { |
+ ow_->MissingField((*it)->name()); |
+ } |
+ // Computes the total number of proto bytes used by a message, also adjusts |
+ // the size of all parent messages by the length of this size field. |
+ // If size_index_ < 0, this is not a message, so no size field is added. |
+ if (size_index_ >= 0) { |
+ // Add the final buffer position to compute the total length of this |
+ // serialized message. The stored value (before this addition) already |
+ // contains the total length of the size fields of all nested messages |
+ // minus the initial buffer position. |
+ ow_->size_insert_[size_index_].size += ow_->stream_->ByteCount(); |
+ // Calculate the length required to serialize the size field of the |
+ // message, and propagate this additional size information upward to |
+ // all enclosing messages. |
+ int size = ow_->size_insert_[size_index_].size; |
+ int length = CodedOutputStream::VarintSize32(size); |
+ for (ProtoElement* e = parent(); e != NULL; e = e->parent()) { |
+ // Only nested messages have size field, lists do not have size field. |
+ if (e->size_index_ >= 0) { |
+ ow_->size_insert_[e->size_index_].size += length; |
+ } |
+ } |
+ } |
+ return BaseElement::pop<ProtoElement>(); |
+} |
+ |
+void ProtoStreamObjectWriter::ProtoElement::RegisterField( |
+ const google::protobuf::Field* field) { |
+ if (!required_fields_.empty() && |
+ field->cardinality() == |
+ google::protobuf::Field_Cardinality_CARDINALITY_REQUIRED) { |
+ required_fields_.erase(field); |
+ } |
+} |
+ |
+string ProtoStreamObjectWriter::ProtoElement::ToString() const { |
+ if (parent() == NULL) return ""; |
+ string loc = parent()->ToString(); |
+ if (field_->cardinality() != |
+ google::protobuf::Field_Cardinality_CARDINALITY_REPEATED || |
+ parent()->field_ != field_) { |
+ string name = field_->name(); |
+ int i = 0; |
+ while (i < name.size() && (ascii_isalnum(name[i]) || name[i] == '_')) ++i; |
+ if (i > 0 && i == name.size()) { // safe field name |
+ if (loc.empty()) { |
+ loc = name; |
+ } else { |
+ StrAppend(&loc, ".", name); |
+ } |
+ } else { |
+ StrAppend(&loc, "[\"", CEscape(name), "\"]"); |
+ } |
+ } |
+ if (field_->cardinality() == |
+ google::protobuf::Field_Cardinality_CARDINALITY_REPEATED && |
+ array_index_ > 0) { |
+ StrAppend(&loc, "[", array_index_ - 1, "]"); |
+ } |
+ return loc.empty() ? "." : loc; |
+} |
+ |
+inline void ProtoStreamObjectWriter::InvalidName(StringPiece unknown_name, |
+ StringPiece message) { |
+ listener_->InvalidName(location(), ToSnakeCase(unknown_name), message); |
+} |
+ |
+inline void ProtoStreamObjectWriter::InvalidValue(StringPiece type_name, |
+ StringPiece value) { |
+ listener_->InvalidValue(location(), type_name, value); |
+} |
+ |
+inline void ProtoStreamObjectWriter::MissingField(StringPiece missing_name) { |
+ listener_->MissingField(location(), missing_name); |
+} |
+ |
+ProtoStreamObjectWriter* ProtoStreamObjectWriter::StartObject( |
+ StringPiece name) { |
+ // Starting the root message. Create the root ProtoElement and return. |
+ if (element_ == NULL) { |
+ if (!name.empty()) { |
+ InvalidName(name, "Root element should not be named."); |
+ } |
+ element_.reset(new ProtoElement(typeinfo_, master_type_, this)); |
+ |
+ // If master type is a special type that needs extra values to be written to |
+ // stream, we write those values. |
+ if (master_type_.name() == kStructType) { |
+ StartStruct(NULL); |
+ } else if (master_type_.name() == kStructValueType) { |
+ // We got a StartObject call with google.protobuf.Value field. This means |
+ // we are starting an object within google.protobuf.Value type. The only |
+ // object within that type is a struct type. So start a struct. |
+ const google::protobuf::Field* field = StartStructValueInStruct(NULL); |
+ StartStruct(field); |
+ } |
+ return this; |
+ } |
+ |
+ const google::protobuf::Field* field = NULL; |
+ if (element_ != NULL && element_->IsAny()) { |
+ element_->any()->StartObject(name); |
+ return this; |
+ } else if (element_ != NULL && |
+ (element_->IsMap() || element_->IsStructMap())) { |
+ field = StartMapEntry(name); |
+ if (element_->IsStructMapEntry()) { |
+ // If the top element is a map entry, this means we are starting another |
+ // struct within a struct. |
+ field = StartStructValueInStruct(field); |
+ } |
+ } else if (element_ != NULL && element_->IsStructList()) { |
+ // If the top element is a list, then we are starting a list field within a |
+ // struct. |
+ field = Lookup(name); |
+ field = StartStructValueInStruct(field); |
+ } else { |
+ field = BeginNamed(name, false); |
+ } |
+ if (field == NULL) { |
+ return this; |
+ } |
+ |
+ const google::protobuf::Type* type = LookupType(field); |
+ if (type == NULL) { |
+ ++invalid_depth_; |
+ InvalidName(name, |
+ StrCat("Missing descriptor for field: ", field->type_url())); |
+ return this; |
+ } |
+ |
+ if (field->type_url() == GetFullTypeWithUrl(kStructType)) { |
+ // Start a struct object. |
+ StartStruct(field); |
+ } else if (field->type_url() == GetFullTypeWithUrl(kStructValueType)) { |
+ // We got a StartObject call with google.protobuf.Value field. This means we |
+ // are starting an object within google.protobuf.Value type. The only object |
+ // within that type is a struct type. So start a struct. |
+ field = StartStructValueInStruct(field); |
+ StartStruct(field); |
+ } else if (field->type_url() == GetFullTypeWithUrl(kAnyType)) { |
+ // Begin an Any. We can't do the real work till we get the @type field. |
+ WriteTag(*field); |
+ element_.reset( |
+ new ProtoElement(element_.release(), field, *type, ProtoElement::ANY)); |
+ } else if (IsMap(*field)) { |
+ // Begin a map. |
+ // A map is triggered by a StartObject() call if the current field has a map |
+ // type. Map values are written to proto in a manner detailed in comments |
+ // above StartMapEntry() function. |
+ element_.reset( |
+ new ProtoElement(element_.release(), field, *type, ProtoElement::MAP)); |
+ } else { |
+ WriteTag(*field); |
+ element_.reset(new ProtoElement(element_.release(), field, *type, |
+ ProtoElement::MESSAGE)); |
+ } |
+ return this; |
+} |
+ |
+// Proto3 maps are represented on the wire as a message with |
+// "key" and a "value". |
+// |
+// For example, the syntax: |
+// map<key_type, value_type> map_field = N; |
+// |
+// is represented as: |
+// message MapFieldEntry { |
+// option map_entry = true; // marks the map construct in the descriptor |
+// |
+// key_type key = 1; |
+// value_type value = 2; |
+// } |
+// repeated MapFieldEntry map_field = N; |
+// |
+// See go/proto3-maps for more information. |
+const google::protobuf::Field* ProtoStreamObjectWriter::StartMapEntry( |
+ StringPiece name) { |
+ // top of stack is already a map field |
+ const google::protobuf::Field* field = element_->field(); |
+ const google::protobuf::Type& type = element_->type(); |
+ // If we come from a regular map, use MAP_ENTRY or if we come from a struct, |
+ // use STRUCT_MAP_ENTRY. These values are used later in StartObject/StartList |
+ // or RenderDataPiece for making appropriate decisions. |
+ ProtoElement::ElementType element_type = element_->IsStructMap() |
+ ? ProtoElement::STRUCT_MAP_ENTRY |
+ : ProtoElement::MAP_ENTRY; |
+ WriteTag(*field); |
+ element_.reset( |
+ new ProtoElement(element_.release(), field, type, element_type)); |
+ RenderDataPiece("key", DataPiece(name)); |
+ return BeginNamed("value", false); |
+} |
+ |
+// Starts a google.protobuf.Struct. |
+// 'field' represents a field in a message of type google.protobuf.Struct. A |
+// struct contains a map with name 'fields'. This function starts this map as |
+// well. |
+// When 'field' is NULL, it means that the top level message is of struct |
+// type. |
+void ProtoStreamObjectWriter::StartStruct( |
+ const google::protobuf::Field* field) { |
+ const google::protobuf::Type* type = NULL; |
+ if (field) { |
+ type = LookupType(field); |
+ WriteTag(*field); |
+ element_.reset(new ProtoElement(element_.release(), field, *type, |
+ ProtoElement::STRUCT)); |
+ } |
+ const google::protobuf::Field* struct_field = BeginNamed("fields", false); |
+ |
+ if (!struct_field) { |
+ // It is a programmatic error if this happens. Log an error. |
+ GOOGLE_LOG(ERROR) << "Invalid internal state. Cannot find 'fields' within " |
+ << (field ? field->type_url() : "google.protobuf.Struct"); |
+ return; |
+ } |
+ |
+ type = LookupType(struct_field); |
+ element_.reset(new ProtoElement(element_.release(), struct_field, *type, |
+ ProtoElement::STRUCT_MAP)); |
+} |
+ |
+// Starts a "struct_value" within struct.proto's google.protobuf.Value type. |
+// 'field' should be of the type google.protobuf.Value. |
+// Returns the field identifying "struct_value" within the given field. |
+// |
+// If field is NULL, then we are starting struct_value at the top-level, in |
+// this case skip writing any tag information for the passed field. |
+const google::protobuf::Field* |
+ProtoStreamObjectWriter::StartStructValueInStruct( |
+ const google::protobuf::Field* field) { |
+ if (field) { |
+ const google::protobuf::Type* type = LookupType(field); |
+ WriteTag(*field); |
+ element_.reset(new ProtoElement(element_.release(), field, *type, |
+ ProtoElement::STRUCT_VALUE)); |
+ } |
+ return BeginNamed("struct_value", false); |
+} |
+ |
+// Starts a "list_value" within struct.proto's google.protobuf.Value type. |
+// 'field' should be of the type google.protobuf.Value. |
+// Returns the field identifying "list_value" within the given field. |
+// |
+// If field is NULL, then we are starting list_value at the top-level, in |
+// this case skip writing any tag information for the passed field. |
+const google::protobuf::Field* ProtoStreamObjectWriter::StartListValueInStruct( |
+ const google::protobuf::Field* field) { |
+ if (field) { |
+ const google::protobuf::Type* type = LookupType(field); |
+ WriteTag(*field); |
+ element_.reset(new ProtoElement(element_.release(), field, *type, |
+ ProtoElement::STRUCT_VALUE)); |
+ } |
+ const google::protobuf::Field* list_value = BeginNamed("list_value", false); |
+ |
+ if (!list_value) { |
+ // It is a programmatic error if this happens. Log an error. |
+ GOOGLE_LOG(ERROR) << "Invalid internal state. Cannot find 'list_value' within " |
+ << (field ? field->type_url() : "google.protobuf.Value"); |
+ return field; |
+ } |
+ |
+ return StartRepeatedValuesInListValue(list_value); |
+} |
+ |
+// Starts the repeated "values" field in struct.proto's |
+// google.protobuf.ListValue type. 'field' should be of type |
+// google.protobuf.ListValue. |
+// |
+// If field is NULL, then we are starting ListValue at the top-level, in |
+// this case skip writing any tag information for the passed field. |
+const google::protobuf::Field* |
+ProtoStreamObjectWriter::StartRepeatedValuesInListValue( |
+ const google::protobuf::Field* field) { |
+ if (field) { |
+ const google::protobuf::Type* type = LookupType(field); |
+ WriteTag(*field); |
+ element_.reset(new ProtoElement(element_.release(), field, *type, |
+ ProtoElement::STRUCT_LIST_VALUE)); |
+ } |
+ return BeginNamed("values", true); |
+} |
+ |
+void ProtoStreamObjectWriter::SkipElements() { |
+ if (element_ == NULL) return; |
+ |
+ ProtoElement::ElementType element_type = element_->element_type(); |
+ while (element_type == ProtoElement::STRUCT || |
+ element_type == ProtoElement::STRUCT_LIST_VALUE || |
+ element_type == ProtoElement::STRUCT_VALUE || |
+ element_type == ProtoElement::STRUCT_MAP_ENTRY || |
+ element_type == ProtoElement::MAP_ENTRY) { |
+ element_.reset(element_->pop()); |
+ element_type = |
+ element_ != NULL ? element_->element_type() : ProtoElement::MESSAGE; |
+ } |
+} |
+ |
+ProtoStreamObjectWriter* ProtoStreamObjectWriter::EndObject() { |
+ if (invalid_depth_ > 0) { |
+ --invalid_depth_; |
+ return this; |
+ } |
+ if (element_ != NULL && element_->IsAny()) { |
+ if (element_->any()->EndObject()) { |
+ return this; |
+ } |
+ } |
+ if (element_ != NULL) { |
+ element_.reset(element_->pop()); |
+ } |
+ |
+ // Skip sentinel elements added to keep track of new proto3 types - map, |
+ // struct. |
+ SkipElements(); |
+ |
+ // If ending the root element, |
+ // then serialize the full message with calculated sizes. |
+ if (element_ == NULL) { |
+ WriteRootMessage(); |
+ } |
+ return this; |
+} |
+ |
+ProtoStreamObjectWriter* ProtoStreamObjectWriter::StartList(StringPiece name) { |
+ const google::protobuf::Field* field = NULL; |
+ // Since we cannot have a top-level repeated item in protobuf, the only way |
+ // element_ can be null when here is when we start a top-level list |
+ // google.protobuf.ListValue. |
+ if (element_ == NULL) { |
+ if (!name.empty()) { |
+ InvalidName(name, "Root element should not be named."); |
+ } |
+ element_.reset(new ProtoElement(typeinfo_, master_type_, this)); |
+ |
+ // If master type is a special type that needs extra values to be written to |
+ // stream, we write those values. |
+ if (master_type_.name() == kStructValueType) { |
+ // We got a StartList with google.protobuf.Value master type. This means |
+ // we have to start the "list_value" within google.protobuf.Value. |
+ field = StartListValueInStruct(NULL); |
+ } else if (master_type_.name() == kStructListValueType) { |
+ // We got a StartList with google.protobuf.ListValue master type. This |
+ // means we have to start the "values" within google.protobuf.ListValue. |
+ field = StartRepeatedValuesInListValue(NULL); |
+ } |
+ |
+ // field is NULL when master_type_ is anything other than |
+ // google.protobuf.Value or google.protobuf.ListValue. |
+ if (field) { |
+ const google::protobuf::Type* type = LookupType(field); |
+ element_.reset(new ProtoElement(element_.release(), field, *type, |
+ ProtoElement::STRUCT_LIST)); |
+ } |
+ return this; |
+ } |
+ |
+ if (element_->IsAny()) { |
+ element_->any()->StartList(name); |
+ return this; |
+ } |
+ // The type of element we push to stack. |
+ ProtoElement::ElementType element_type = ProtoElement::LIST; |
+ |
+ // Check if we need to start a map. This can heppen when there is either a map |
+ // or a struct type within a list. |
+ if (element_->IsMap() || element_->IsStructMap()) { |
+ field = StartMapEntry(name); |
+ if (field == NULL) return this; |
+ |
+ if (element_->IsStructMapEntry()) { |
+ // If the top element is a map entry, this means we are starting a list |
+ // within a struct or a map. |
+ // An example sequence of calls would be |
+ // StartObject -> StartList |
+ field = StartListValueInStruct(field); |
+ if (field == NULL) return this; |
+ } |
+ |
+ element_type = ProtoElement::STRUCT_LIST; |
+ } else if (element_->IsStructList()) { |
+ // If the top element is a STRUCT_LIST, this means we are starting a list |
+ // within the current list (inside a struct). |
+ // An example call sequence would be |
+ // StartObject -> StartList -> StartList |
+ // with StartObject starting a struct. |
+ |
+ // Lookup the last list type in element stack as we are adding an element of |
+ // the same type. |
+ field = Lookup(name); |
+ if (field == NULL) return this; |
+ |
+ field = StartListValueInStruct(field); |
+ if (field == NULL) return this; |
+ |
+ element_type = ProtoElement::STRUCT_LIST; |
+ } else { |
+ // Lookup field corresponding to 'name'. If it is a google.protobuf.Value |
+ // or google.protobuf.ListValue type, then StartList is a valid call, start |
+ // this list. |
+ // We cannot use Lookup() here as it will produce InvalidName() error if the |
+ // field is not found. We do not want to error here as it would cause us to |
+ // report errors twice, once here and again later in BeginNamed() call. |
+ // Also we ignore if the field is not found here as it is caught later. |
+ field = typeinfo_->FindField(&element_->type(), name); |
+ |
+ // It is an error to try to bind to map, which behind the scenes is a list. |
+ if (field && IsMap(*field)) { |
+ // Push field to stack for error location tracking & reporting. |
+ element_.reset(new ProtoElement(element_.release(), field, |
+ *LookupType(field), |
+ ProtoElement::MESSAGE)); |
+ InvalidValue("Map", "Cannot bind a list to map."); |
+ ++invalid_depth_; |
+ element_->pop(); |
+ return this; |
+ } |
+ |
+ if (field && field->type_url() == GetFullTypeWithUrl(kStructValueType)) { |
+ // There are 2 cases possible: |
+ // a. g.p.Value is repeated |
+ // b. g.p.Value is not repeated |
+ // |
+ // For case (a), the StartList should bind to the repeated g.p.Value. |
+ // For case (b), the StartList should bind to g.p.ListValue within the |
+ // g.p.Value. |
+ // |
+ // This means, for case (a), we treat it just like any other repeated |
+ // message, except we would apply an appropriate element_type so future |
+ // Start or Render calls are routed appropriately. |
+ if (field->cardinality() != |
+ google::protobuf::Field_Cardinality_CARDINALITY_REPEATED) { |
+ field = StartListValueInStruct(field); |
+ } |
+ element_type = ProtoElement::STRUCT_LIST; |
+ } else if (field && |
+ field->type_url() == GetFullTypeWithUrl(kStructListValueType)) { |
+ // We got a StartList with google.protobuf.ListValue master type. This |
+ // means we have to start the "values" within google.protobuf.ListValue. |
+ field = StartRepeatedValuesInListValue(field); |
+ } else { |
+ // If no special types are to be bound, fall back to normal processing of |
+ // StartList. |
+ field = BeginNamed(name, true); |
+ } |
+ if (field == NULL) return this; |
+ } |
+ |
+ const google::protobuf::Type* type = LookupType(field); |
+ if (type == NULL) { |
+ ++invalid_depth_; |
+ InvalidName(name, |
+ StrCat("Missing descriptor for field: ", field->type_url())); |
+ return this; |
+ } |
+ |
+ element_.reset( |
+ new ProtoElement(element_.release(), field, *type, element_type)); |
+ return this; |
+} |
+ |
+ProtoStreamObjectWriter* ProtoStreamObjectWriter::EndList() { |
+ if (invalid_depth_ > 0) { |
+ --invalid_depth_; |
+ } else if (element_ != NULL) { |
+ if (element_->IsAny()) { |
+ element_->any()->EndList(); |
+ } else { |
+ element_.reset(element_->pop()); |
+ // Skip sentinel elements added to keep track of new proto3 types - map, |
+ // struct. |
+ SkipElements(); |
+ } |
+ } |
+ |
+ // When element_ is NULL, we have reached the root message type. Write out |
+ // the bytes. |
+ if (element_ == NULL) { |
+ WriteRootMessage(); |
+ } |
+ return this; |
+} |
+ |
+Status ProtoStreamObjectWriter::RenderStructValue(ProtoStreamObjectWriter* ow, |
+ const DataPiece& data) { |
+ string struct_field_name; |
+ switch (data.type()) { |
+ // Our JSON parser parses numbers as either int64, uint64, or double. |
+ case DataPiece::TYPE_INT64: |
+ case DataPiece::TYPE_UINT64: |
+ case DataPiece::TYPE_DOUBLE: { |
+ struct_field_name = "number_value"; |
+ break; |
+ } |
+ case DataPiece::TYPE_STRING: { |
+ struct_field_name = "string_value"; |
+ break; |
+ } |
+ case DataPiece::TYPE_BOOL: { |
+ struct_field_name = "bool_value"; |
+ break; |
+ } |
+ case DataPiece::TYPE_NULL: { |
+ struct_field_name = "null_value"; |
+ break; |
+ } |
+ default: { |
+ return Status(INVALID_ARGUMENT, |
+ "Invalid struct data type. Only number, string, boolean or " |
+ "null values are supported."); |
+ } |
+ } |
+ ow->RenderDataPiece(struct_field_name, data); |
+ return Status::OK; |
+} |
+ |
+Status ProtoStreamObjectWriter::RenderTimestamp(ProtoStreamObjectWriter* ow, |
+ const DataPiece& data) { |
+ if (data.type() != DataPiece::TYPE_STRING) { |
+ return Status(INVALID_ARGUMENT, |
+ StrCat("Invalid data type for timestamp, value is ", |
+ data.ValueAsStringOrDefault(""))); |
+ } |
+ |
+ StringPiece value(data.str()); |
+ |
+ int64 seconds; |
+ int32 nanos; |
+ if (!::google::protobuf::internal::ParseTime(value.ToString(), &seconds, |
+ &nanos)) { |
+ return Status(INVALID_ARGUMENT, StrCat("Invalid time format: ", value)); |
+ } |
+ |
+ |
+ ow->RenderDataPiece("seconds", DataPiece(seconds)); |
+ ow->RenderDataPiece("nanos", DataPiece(nanos)); |
+ return Status::OK; |
+} |
+ |
+static inline util::Status RenderOneFieldPath(ProtoStreamObjectWriter* ow, |
+ StringPiece path) { |
+ ow->RenderDataPiece("paths", |
+ DataPiece(ConvertFieldMaskPath(path, &ToSnakeCase))); |
+ return Status::OK; |
+} |
+ |
+Status ProtoStreamObjectWriter::RenderFieldMask(ProtoStreamObjectWriter* ow, |
+ const DataPiece& data) { |
+ if (data.type() != DataPiece::TYPE_STRING) { |
+ return Status(INVALID_ARGUMENT, |
+ StrCat("Invalid data type for field mask, value is ", |
+ data.ValueAsStringOrDefault(""))); |
+ } |
+ |
+ // TODO(tsun): figure out how to do proto descriptor based snake case |
+ // conversions as much as possible. Because ToSnakeCase sometimes returns the |
+ // wrong value. |
+ google::protobuf::scoped_ptr<ResultCallback1<util::Status, StringPiece> > callback( |
+ NewPermanentCallback(&RenderOneFieldPath, ow)); |
+ return DecodeCompactFieldMaskPaths(data.str(), callback.get()); |
+} |
+ |
+Status ProtoStreamObjectWriter::RenderDuration(ProtoStreamObjectWriter* ow, |
+ const DataPiece& data) { |
+ if (data.type() != DataPiece::TYPE_STRING) { |
+ return Status(INVALID_ARGUMENT, |
+ StrCat("Invalid data type for duration, value is ", |
+ data.ValueAsStringOrDefault(""))); |
+ } |
+ |
+ StringPiece value(data.str()); |
+ |
+ if (!value.ends_with("s")) { |
+ return Status(INVALID_ARGUMENT, |
+ "Illegal duration format; duration must end with 's'"); |
+ } |
+ value = value.substr(0, value.size() - 1); |
+ int sign = 1; |
+ if (value.starts_with("-")) { |
+ sign = -1; |
+ value = value.substr(1); |
+ } |
+ |
+ StringPiece s_secs, s_nanos; |
+ SplitSecondsAndNanos(value, &s_secs, &s_nanos); |
+ uint64 unsigned_seconds; |
+ if (!safe_strtou64(s_secs, &unsigned_seconds)) { |
+ return Status(INVALID_ARGUMENT, |
+ "Invalid duration format, failed to parse seconds"); |
+ } |
+ |
+ double d_nanos = 0; |
+ if (!safe_strtod("0." + s_nanos.ToString(), &d_nanos)) { |
+ return Status(INVALID_ARGUMENT, |
+ "Invalid duration format, failed to parse nanos seconds"); |
+ } |
+ |
+ int32 nanos = sign * static_cast<int32>(d_nanos * kNanosPerSecond); |
+ int64 seconds = sign * unsigned_seconds; |
+ |
+ if (seconds > kMaxSeconds || seconds < kMinSeconds || |
+ nanos <= -kNanosPerSecond || nanos >= kNanosPerSecond) { |
+ return Status(INVALID_ARGUMENT, "Duration value exceeds limits"); |
+ } |
+ |
+ ow->RenderDataPiece("seconds", DataPiece(seconds)); |
+ ow->RenderDataPiece("nanos", DataPiece(nanos)); |
+ return Status::OK; |
+} |
+ |
+Status ProtoStreamObjectWriter::RenderWrapperType(ProtoStreamObjectWriter* ow, |
+ const DataPiece& data) { |
+ ow->RenderDataPiece("value", data); |
+ return Status::OK; |
+} |
+ |
+ProtoStreamObjectWriter* ProtoStreamObjectWriter::RenderDataPiece( |
+ StringPiece name, const DataPiece& data) { |
+ Status status; |
+ if (invalid_depth_ > 0) return this; |
+ if (element_ != NULL && element_->IsAny()) { |
+ element_->any()->RenderDataPiece(name, data); |
+ return this; |
+ } |
+ |
+ const google::protobuf::Field* field = NULL; |
+ string type_url; |
+ bool is_map_entry = false; |
+ if (element_ == NULL) { |
+ type_url = GetFullTypeWithUrl(master_type_.name()); |
+ } else { |
+ if (element_->IsMap() || element_->IsStructMap()) { |
+ is_map_entry = true; |
+ field = StartMapEntry(name); |
+ } else { |
+ field = Lookup(name); |
+ } |
+ if (field == NULL) { |
+ return this; |
+ } |
+ type_url = field->type_url(); |
+ } |
+ |
+ // Check if there are any well known type renderers available for type_url. |
+ const TypeRenderer* type_renderer = FindTypeRenderer(type_url); |
+ if (type_renderer != NULL) { |
+ // Push the current element to stack so lookups in type_renderer will |
+ // find the fields. We do an EndObject soon after, which pops this. This is |
+ // safe because all well-known types are messages. |
+ if (element_ == NULL) { |
+ element_.reset(new ProtoElement(typeinfo_, master_type_, this)); |
+ } else { |
+ if (field) { |
+ WriteTag(*field); |
+ const google::protobuf::Type* type = LookupType(field); |
+ element_.reset(new ProtoElement(element_.release(), field, *type, |
+ ProtoElement::MESSAGE)); |
+ } |
+ } |
+ status = (*type_renderer)(this, data); |
+ if (!status.ok()) { |
+ InvalidValue(type_url, |
+ StrCat("Field '", name, "', ", status.error_message())); |
+ } |
+ EndObject(); |
+ return this; |
+ } else if (element_ == NULL) { // no message type found at root |
+ element_.reset(new ProtoElement(typeinfo_, master_type_, this)); |
+ InvalidName(name, "Root element must be a message."); |
+ return this; |
+ } |
+ |
+ if (field == NULL) { |
+ return this; |
+ } |
+ const google::protobuf::Type* type = LookupType(field); |
+ if (type == NULL) { |
+ InvalidName(name, |
+ StrCat("Missing descriptor for field: ", field->type_url())); |
+ return this; |
+ } |
+ |
+ // Whether we should pop at the end. Set to true if the data field is a |
+ // message type, which can happen in case of struct values. |
+ bool should_pop = false; |
+ |
+ RenderSimpleDataPiece(*field, *type, data); |
+ |
+ if (should_pop && element_ != NULL) { |
+ element_.reset(element_->pop()); |
+ } |
+ |
+ if (is_map_entry) { |
+ // Ending map is the same as ending an object. |
+ EndObject(); |
+ } |
+ return this; |
+} |
+ |
+void ProtoStreamObjectWriter::RenderSimpleDataPiece( |
+ const google::protobuf::Field& field, const google::protobuf::Type& type, |
+ const DataPiece& data) { |
+ // If we are rendering explicit null values and the backend proto field is not |
+ // of the google.protobuf.NullType type, we do nothing. |
+ if (data.type() == DataPiece::TYPE_NULL && |
+ field.type_url() != kStructNullValueTypeUrl) { |
+ return; |
+ } |
+ |
+ // Pushing a ProtoElement and then pop it off at the end for 2 purposes: |
+ // error location reporting and required field accounting. |
+ element_.reset(new ProtoElement(element_.release(), &field, type, |
+ ProtoElement::MESSAGE)); |
+ |
+ // Make sure that field represents a simple data type. |
+ if (field.kind() == google::protobuf::Field_Kind_TYPE_UNKNOWN || |
+ field.kind() == google::protobuf::Field_Kind_TYPE_MESSAGE) { |
+ InvalidValue(field.type_url().empty() |
+ ? google::protobuf::Field_Kind_Name(field.kind()) |
+ : field.type_url(), |
+ data.ValueAsStringOrDefault("")); |
+ return; |
+ } |
+ |
+ Status status; |
+ switch (field.kind()) { |
+ case google::protobuf::Field_Kind_TYPE_INT32: { |
+ status = WriteInt32(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_SFIXED32: { |
+ status = WriteSFixed32(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_SINT32: { |
+ status = WriteSInt32(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_FIXED32: { |
+ status = WriteFixed32(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_UINT32: { |
+ status = WriteUInt32(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_INT64: { |
+ status = WriteInt64(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_SFIXED64: { |
+ status = WriteSFixed64(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_SINT64: { |
+ status = WriteSInt64(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_FIXED64: { |
+ status = WriteFixed64(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_UINT64: { |
+ status = WriteUInt64(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_DOUBLE: { |
+ status = WriteDouble(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_FLOAT: { |
+ status = WriteFloat(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_BOOL: { |
+ status = WriteBool(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_BYTES: { |
+ status = WriteBytes(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_STRING: { |
+ status = WriteString(field.number(), data, stream_.get()); |
+ break; |
+ } |
+ case google::protobuf::Field_Kind_TYPE_ENUM: { |
+ status = WriteEnum(field.number(), data, |
+ typeinfo_->GetEnum(field.type_url()), stream_.get()); |
+ break; |
+ } |
+ default: // TYPE_GROUP or TYPE_MESSAGE |
+ status = Status(INVALID_ARGUMENT, data.ToString().ValueOrDie()); |
+ } |
+ if (!status.ok()) { |
+ InvalidValue(google::protobuf::Field_Kind_Name(field.kind()), |
+ status.error_message()); |
+ } |
+ element_.reset(element_->pop()); |
+} |
+ |
+// Map of functions that are responsible for rendering well known type |
+// represented by the key. |
+hash_map<string, ProtoStreamObjectWriter::TypeRenderer>* |
+ProtoStreamObjectWriter::CreateRendererMap() { |
+ google::protobuf::scoped_ptr<hash_map<string, ProtoStreamObjectWriter::TypeRenderer> > |
+ result(new hash_map<string, ProtoStreamObjectWriter::TypeRenderer>()); |
+ (*result)["type.googleapis.com/google.protobuf.Timestamp"] = |
+ &ProtoStreamObjectWriter::RenderTimestamp; |
+ (*result)["type.googleapis.com/google.protobuf.Duration"] = |
+ &ProtoStreamObjectWriter::RenderDuration; |
+ (*result)["type.googleapis.com/google.protobuf.FieldMask"] = |
+ &ProtoStreamObjectWriter::RenderFieldMask; |
+ (*result)["type.googleapis.com/google.protobuf.Double"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.Float"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.Int64"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.UInt64"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.Int32"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.UInt32"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.Bool"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.String"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.Bytes"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.DoubleValue"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.FloatValue"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.Int64Value"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.UInt64Value"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.Int32Value"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.UInt32Value"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.BoolValue"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.StringValue"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.BytesValue"] = |
+ &ProtoStreamObjectWriter::RenderWrapperType; |
+ (*result)["type.googleapis.com/google.protobuf.Value"] = |
+ &ProtoStreamObjectWriter::RenderStructValue; |
+ return result.release(); |
+} |
+ |
+ProtoStreamObjectWriter::TypeRenderer* |
+ProtoStreamObjectWriter::FindTypeRenderer(const string& type_url) { |
+ static hash_map<string, TypeRenderer>* renderers = CreateRendererMap(); |
+ return FindOrNull(*renderers, type_url); |
+} |
+ |
+ProtoStreamObjectWriter::ProtoElement::ElementType |
+ProtoStreamObjectWriter::GetElementType(const google::protobuf::Type& type) { |
+ if (type.name() == kAnyType) { |
+ return ProtoElement::ANY; |
+ } else if (type.name() == kStructType) { |
+ return ProtoElement::STRUCT; |
+ } else if (type.name() == kStructValueType) { |
+ return ProtoElement::STRUCT_VALUE; |
+ } else if (type.name() == kStructListValueType) { |
+ return ProtoElement::STRUCT_LIST_VALUE; |
+ } else { |
+ return ProtoElement::MESSAGE; |
+ } |
+} |
+ |
+const google::protobuf::Field* ProtoStreamObjectWriter::BeginNamed( |
+ StringPiece name, bool is_list) { |
+ if (invalid_depth_ > 0) { |
+ ++invalid_depth_; |
+ return NULL; |
+ } |
+ const google::protobuf::Field* field = Lookup(name); |
+ if (field == NULL) { |
+ ++invalid_depth_; |
+ // InvalidName() already called in Lookup(). |
+ return NULL; |
+ } |
+ if (is_list && |
+ field->cardinality() != |
+ google::protobuf::Field_Cardinality_CARDINALITY_REPEATED) { |
+ ++invalid_depth_; |
+ InvalidName(name, "Proto field is not repeating, cannot start list."); |
+ return NULL; |
+ } |
+ return field; |
+} |
+ |
+const google::protobuf::Field* ProtoStreamObjectWriter::Lookup( |
+ StringPiece unnormalized_name) { |
+ ProtoElement* e = element(); |
+ if (e == NULL) { |
+ InvalidName(unnormalized_name, "Root element must be a message."); |
+ return NULL; |
+ } |
+ if (unnormalized_name.empty()) { |
+ // Objects in repeated field inherit the same field descriptor. |
+ if (e->field() == NULL) { |
+ InvalidName(unnormalized_name, "Proto fields must have a name."); |
+ } else if (e->field()->cardinality() != |
+ google::protobuf::Field_Cardinality_CARDINALITY_REPEATED) { |
+ InvalidName(unnormalized_name, "Proto fields must have a name."); |
+ return NULL; |
+ } |
+ return e->field(); |
+ } |
+ const google::protobuf::Field* field = |
+ typeinfo_->FindField(&e->type(), unnormalized_name); |
+ if (field == NULL) InvalidName(unnormalized_name, "Cannot find field."); |
+ return field; |
+} |
+ |
+const google::protobuf::Type* ProtoStreamObjectWriter::LookupType( |
+ const google::protobuf::Field* field) { |
+ return (field->kind() == google::protobuf::Field_Kind_TYPE_MESSAGE |
+ ? typeinfo_->GetType(field->type_url()) |
+ : &element_->type()); |
+} |
+ |
+// Looks up the oneof struct field based on the data type. |
+StatusOr<const google::protobuf::Field*> |
+ProtoStreamObjectWriter::LookupStructField(DataPiece::Type type) { |
+ const google::protobuf::Field* field = NULL; |
+ switch (type) { |
+ // Our JSON parser parses numbers as either int64, uint64, or double. |
+ case DataPiece::TYPE_INT64: |
+ case DataPiece::TYPE_UINT64: |
+ case DataPiece::TYPE_DOUBLE: { |
+ field = Lookup("number_value"); |
+ break; |
+ } |
+ case DataPiece::TYPE_STRING: { |
+ field = Lookup("string_value"); |
+ break; |
+ } |
+ case DataPiece::TYPE_BOOL: { |
+ field = Lookup("bool_value"); |
+ break; |
+ } |
+ case DataPiece::TYPE_NULL: { |
+ field = Lookup("null_value"); |
+ break; |
+ } |
+ default: { return Status(INVALID_ARGUMENT, "Invalid struct data type"); } |
+ } |
+ if (field == NULL) { |
+ return Status(INVALID_ARGUMENT, "Could not lookup struct field"); |
+ } |
+ return field; |
+} |
+ |
+void ProtoStreamObjectWriter::WriteRootMessage() { |
+ GOOGLE_DCHECK(!done_); |
+ int curr_pos = 0; |
+ // Calls the destructor of CodedOutputStream to remove any uninitialized |
+ // memory from the Cord before we read it. |
+ stream_.reset(NULL); |
+ const void* data; |
+ int length; |
+ google::protobuf::io::ArrayInputStream input_stream(buffer_.data(), buffer_.size()); |
+ while (input_stream.Next(&data, &length)) { |
+ if (length == 0) continue; |
+ int num_bytes = length; |
+ // Write up to where we need to insert the size field. |
+ // The number of bytes we may write is the smaller of: |
+ // - the current fragment size |
+ // - the distance to the next position where a size field needs to be |
+ // inserted. |
+ if (!size_insert_.empty() && |
+ size_insert_.front().pos - curr_pos < num_bytes) { |
+ num_bytes = size_insert_.front().pos - curr_pos; |
+ } |
+ output_->Append(static_cast<const char*>(data), num_bytes); |
+ if (num_bytes < length) { |
+ input_stream.BackUp(length - num_bytes); |
+ } |
+ curr_pos += num_bytes; |
+ // Insert the size field. |
+ // size_insert_.front(): the next <index, size> pair to be written. |
+ // size_insert_.front().pos: position of the size field. |
+ // size_insert_.front().size: the size (integer) to be inserted. |
+ if (!size_insert_.empty() && curr_pos == size_insert_.front().pos) { |
+ // Varint32 occupies at most 10 bytes. |
+ uint8 insert_buffer[10]; |
+ uint8* insert_buffer_pos = CodedOutputStream::WriteVarint32ToArray( |
+ size_insert_.front().size, insert_buffer); |
+ output_->Append(reinterpret_cast<const char*>(insert_buffer), |
+ insert_buffer_pos - insert_buffer); |
+ size_insert_.pop_front(); |
+ } |
+ } |
+ output_->Flush(); |
+ stream_.reset(new CodedOutputStream(&adapter_)); |
+ done_ = true; |
+} |
+ |
+bool ProtoStreamObjectWriter::IsMap(const google::protobuf::Field& field) { |
+ if (field.type_url().empty() || |
+ field.kind() != google::protobuf::Field_Kind_TYPE_MESSAGE || |
+ field.cardinality() != |
+ google::protobuf::Field_Cardinality_CARDINALITY_REPEATED) { |
+ return false; |
+ } |
+ const google::protobuf::Type* field_type = |
+ typeinfo_->GetType(field.type_url()); |
+ |
+ return GetBoolOptionOrDefault(field_type->options(), |
+ "google.protobuf.MessageOptions.map_entry", false); |
+} |
+ |
+void ProtoStreamObjectWriter::WriteTag(const google::protobuf::Field& field) { |
+ WireFormatLite::WireType wire_type = WireFormatLite::WireTypeForFieldType( |
+ static_cast<WireFormatLite::FieldType>(field.kind())); |
+ stream_->WriteTag(WireFormatLite::MakeTag(field.number(), wire_type)); |
+} |
+ |
+} // namespace converter |
+} // namespace util |
+} // namespace protobuf |
+} // namespace google |