67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
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#ifndef _PB_HELPER_H
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#define _PB_HELPER_H
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#include <google/protobuf/message.h>
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#include <google/protobuf/descriptor.h>
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#include <qDebug.h>
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class PbHelper
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{
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public:
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bool update(
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::google::protobuf::Message *target,
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::google::protobuf::Message *source)
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{
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::google::protobuf::Message::Reflection *sourceRef;
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::google::protobuf::Message::Reflection *targetRef;
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std::vector<const ::google::protobuf::FieldDescriptor*> srcFieldList;
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qDebug("In %s", __FUNCTION__);
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if (source->GetDescriptor()->full_name() !=
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target->GetDescriptor()->full_name())
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goto _error_exit;
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sourceRef = source->GetReflection();
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targetRef = target->GetReflection();
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sourceRef->ListFields(&srcFieldList);
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for (uint i=0; i < srcFieldList.size(); i++)
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{
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const ::google::protobuf::FieldDescriptor *srcField, *targetField;
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srcField = srcFieldList[i];
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targetField = target->GetDescriptor()->FindFieldByName(
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srcField->name());
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switch(targetField->type())
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{
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case ::google::protobuf::FieldDescriptor::TYPE_UINT32:
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targetRef->SetUInt32(targetField,
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sourceRef->GetUInt32(srcField));
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break;
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case ::google::protobuf::FieldDescriptor::TYPE_BOOL:
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targetRef->SetBool(targetField,
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sourceRef->GetBool(srcField));
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break;
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case ::google::protobuf::FieldDescriptor::TYPE_STRING:
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targetRef->SetString(targetField,
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sourceRef->GetString(srcField));
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break;
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default:
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qDebug("unhandled Field Type");
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break;
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}
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}
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return true;
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_error_exit:
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qDebug("%s: error!", __FUNCTION__);
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return false;
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}
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};
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#endif
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