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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/document/base/globalid.h>
#include <vespa/document/fieldvalue/document.h>
#include <vespa/document/util/bytebuffer.h>
#include <vespa/vespalib/objects/nbostream.h>
#include <vespa/vespalib/util/growablebytebuffer.h>
namespace storage::mbusprot {
class SerializationHelper
{
public:
static int32_t getInt(document::ByteBuffer& buf) {
int32_t tmp;
buf.getIntNetwork(tmp);
return tmp;
}
static int16_t getShort(document::ByteBuffer& buf) {
int16_t tmp;
buf.getShortNetwork(tmp);
return tmp;
}
static uint8_t getByte(document::ByteBuffer& buf) {
uint8_t tmp;
buf.getByte(tmp);
return tmp;
}
static vespalib::stringref getString(document::ByteBuffer& buf) {
uint32_t tmp;
buf.getIntNetwork((int32_t&) tmp);
const char * p = buf.getBufferAtPos();
buf.incPos(tmp);
vespalib::stringref s(p, tmp);
return s;
}
static document::GlobalId getGlobalId(document::ByteBuffer& buf) {
std::vector<char> buffer(getShort(buf));
for (uint32_t i=0; i<buffer.size(); ++i) {
buffer[i] = getByte(buf);
}
return document::GlobalId(&buffer[0]);
}
static document::Document::UP getDocument(document::ByteBuffer& buf, const document::DocumentTypeRepo& repo)
{
uint32_t size = getInt(buf);
if (size == 0) {
return document::Document::UP();
} else {
vespalib::nbostream stream(buf.getBufferAtPos(), size);
buf.incPos(size);
return std::make_unique<document::Document>(repo, stream);
}
}
static void putDocument(document::Document* doc, vespalib::GrowableByteBuffer& buf)
{
if (doc) {
vespalib::nbostream stream;
doc->serialize(stream);
buf.putInt(stream.size());
buf.putBytes(stream.peek(), stream.size());
} else {
buf.putInt(0);
}
}
};
}
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