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115 lines
4.3 KiB
C++
115 lines
4.3 KiB
C++
// Protocol Buffers - Google's data interchange format
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// Copyright 2008 Google Inc. All rights reserved.
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// https://developers.google.com/protocol-buffers/
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include <google/protobuf/any.h>
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#include <google/protobuf/generated_message_util.h>
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namespace google {
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namespace protobuf {
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namespace internal {
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namespace {
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string GetTypeUrl(const Descriptor* message,
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const string& type_url_prefix) {
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if (!type_url_prefix.empty() &&
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type_url_prefix[type_url_prefix.size() - 1] == '/') {
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return type_url_prefix + message->full_name();
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} else {
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return type_url_prefix + "/" + message->full_name();
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}
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}
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} // namespace
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const char kAnyFullTypeName[] = "google.protobuf.Any";
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const char kTypeGoogleApisComPrefix[] = "type.googleapis.com/";
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const char kTypeGoogleProdComPrefix[] = "type.googleprod.com/";
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AnyMetadata::AnyMetadata(UrlType* type_url, ValueType* value)
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: type_url_(type_url), value_(value) {
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}
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void AnyMetadata::PackFrom(const Message& message) {
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PackFrom(message, kTypeGoogleApisComPrefix);
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}
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void AnyMetadata::PackFrom(const Message& message,
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const string& type_url_prefix) {
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type_url_->SetNoArena(&::google::protobuf::internal::GetEmptyString(),
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GetTypeUrl(message.GetDescriptor(), type_url_prefix));
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message.SerializeToString(value_->MutableNoArena(
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&::google::protobuf::internal::GetEmptyStringAlreadyInited()));
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}
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bool AnyMetadata::UnpackTo(Message* message) const {
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if (!InternalIs(message->GetDescriptor())) {
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return false;
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}
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return message->ParseFromString(value_->GetNoArena());
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}
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bool AnyMetadata::InternalIs(const Descriptor* descriptor) const {
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const string type_url = type_url_->GetNoArena();
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string full_name;
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if (!ParseAnyTypeUrl(type_url, &full_name)) {
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return false;
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}
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return full_name == descriptor->full_name();
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}
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bool ParseAnyTypeUrl(const string& type_url, string* full_type_name) {
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size_t pos = type_url.find_last_of("/");
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if (pos == string::npos || pos + 1 == type_url.size()) {
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return false;
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}
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*full_type_name = type_url.substr(pos + 1);
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return true;
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}
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bool GetAnyFieldDescriptors(const Message& message,
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const FieldDescriptor** type_url_field,
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const FieldDescriptor** value_field) {
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const Descriptor* descriptor = message.GetDescriptor();
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if (descriptor->full_name() != kAnyFullTypeName) {
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return false;
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}
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*type_url_field = descriptor->FindFieldByNumber(1);
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*value_field = descriptor->FindFieldByNumber(2);
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return (*type_url_field != NULL &&
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(*type_url_field)->type() == FieldDescriptor::TYPE_STRING &&
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*value_field != NULL &&
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(*value_field)->type() == FieldDescriptor::TYPE_BYTES);
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}
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} // namespace internal
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} // namespace protobuf
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} // namespace google
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