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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "resultpacker.h"
#include <vespa/searchcommon/common/undefinedvalues.h>
#include <vespa/log/log.h>
LOG_SETUP(".searchlib.docsummary.resultpacker");
namespace search {
namespace docsummary {
void
ResultPacker::WarnType(ResType type) const
{
LOG(debug,
"ResultPacker: got '%s', expected '%s' "
"(fields are binary compatible)",
GetResTypeName(type),
GetResTypeName(_cfgEntry->_type));
}
bool ResultPacker::CheckEntry(ResType type)
{
if (_error)
return false;
bool rc = (_cfgEntry != NULL &&
IsBinaryCompatible(_cfgEntry->_type, type));
if (rc) {
if (_cfgEntry->_type != type) {
WarnType(type);
}
_cfgEntry = _resClass->GetEntry(++_entryIdx);
} else {
SetFormatError(type);
}
return rc;
}
void
ResultPacker::SetFormatError(ResType type)
{
_error = true;
if (_cfgEntry != NULL) {
LOG(error,
"ResultPacker: format error: got '%s', expected '%s'",
GetResTypeName(type),
GetResTypeName(_cfgEntry->_type));
} else {
LOG(error,
"ResultPacker: format error: "
"got '%s', no more fields expected", GetResTypeName(type));
}
}
ResultPacker::ResultPacker(const ResultConfig *resConfig)
: _buf(32768),
_cbuf(32768),
_resConfig(resConfig),
_resClass(NULL),
_entryIdx(0),
_cfgEntry(NULL),
_error(true)
{
}
ResultPacker::~ResultPacker()
{
}
void
ResultPacker::InitPlain()
{
_buf.reset();
}
bool
ResultPacker::Init(uint32_t classID)
{
_buf.reset();
_resClass = (_resConfig != NULL) ?
_resConfig->LookupResultClass(classID) : NULL;
_entryIdx = 0;
if (_resClass != NULL) {
uint32_t id = _resClass->GetClassID();
_buf.append(&id, sizeof(id));
_cfgEntry = _resClass->GetEntry(_entryIdx);
_error = false;
} else {
_cfgEntry = NULL;
_error = true;
LOG(error, "ResultPacker: resultclass %d does not exist", classID);
}
return !_error;
}
bool
ResultPacker::AddEmpty()
{
if (!_error && _cfgEntry != NULL) {
switch (_cfgEntry->_type) {
case RES_INT: return AddInteger(search::attribute::getUndefined<int32_t>());
case RES_SHORT: return AddShort(search::attribute::getUndefined<int16_t>());
case RES_BYTE: return AddByte(search::attribute::getUndefined<int8_t>());
case RES_FLOAT: return AddFloat(search::attribute::getUndefined<float>());
case RES_DOUBLE: return AddDouble(search::attribute::getUndefined<double>());
case RES_INT64: return AddInt64(search::attribute::getUndefined<int64_t>());
case RES_STRING: return AddString(NULL, 0);
case RES_DATA: return AddData(NULL, 0);
case RES_XMLSTRING:
case RES_JSONSTRING:
case RES_FEATUREDATA:
case RES_LONG_STRING: return AddLongString(NULL, 0);
case RES_TENSOR: return AddSerializedTensor(NULL, 0);
case RES_LONG_DATA: return AddLongData(NULL, 0);
}
}
return AddInteger(0); // to provoke error condition
}
bool
ResultPacker::AddByte(uint8_t value)
{
if (CheckEntry(RES_BYTE))
AddByteForce(value);
return !_error;
}
void
ResultPacker::AddByteForce(uint8_t value)
{
_buf.append(&value, sizeof(value));
}
bool
ResultPacker::AddShort(uint16_t value)
{
if (CheckEntry(RES_SHORT))
AddShortForce(value);
return !_error;
}
void
ResultPacker::AddShortForce(uint16_t value)
{
_buf.append(&value, sizeof(value));
}
bool
ResultPacker::AddInteger(uint32_t value)
{
if (CheckEntry(RES_INT))
AddIntegerForce(value);
return !_error;
}
void
ResultPacker::AddIntegerForce(uint32_t value)
{
_buf.append(&value, sizeof(value));
}
bool
ResultPacker::AddFloat(float value)
{
if (CheckEntry(RES_FLOAT))
_buf.append(&value, sizeof(value));
return !_error;
}
bool
ResultPacker::AddDouble(double value)
{
if (CheckEntry(RES_DOUBLE))
_buf.append(&value, sizeof(value));
return !_error;
}
bool
ResultPacker::AddInt64(uint64_t value)
{
if (CheckEntry(RES_INT64))
_buf.append(&value, sizeof(value));
return !_error;
}
bool
ResultPacker::AddString(const char *str, uint32_t slen)
{
if (CheckEntry(RES_STRING))
AddStringForce(str, slen);
return !_error;
}
void
ResultPacker::AddStringForce(const char *str, uint32_t slen)
{
uint16_t len = slen;
_buf.append(&len, sizeof(len));
_buf.append(str, len);
}
bool
ResultPacker::AddData(const char *buf, uint32_t buflen)
{
if (CheckEntry(RES_DATA)) {
uint16_t len = buflen;
_buf.append(&len, sizeof(len));
_buf.append(buf, len);
}
return !_error;
}
bool
ResultPacker::AddLongString(const char *str, uint32_t slen)
{
if (CheckEntry(RES_LONG_STRING)) {
_buf.append(&slen, sizeof(slen));
_buf.append(str, slen);
}
return !_error;
}
bool
ResultPacker::AddLongData(const char *buf, uint32_t buflen)
{
if (CheckEntry(RES_LONG_DATA)) {
_buf.append(&buflen, sizeof(buflen));
_buf.append(buf, buflen);
}
return !_error;
}
bool
ResultPacker::AddSerializedTensor(const char *buf, uint32_t buflen)
{
if (CheckEntry(RES_TENSOR)) {
_buf.append(&buflen, sizeof(buflen));
_buf.append(buf, buflen);
}
return !_error;
}
bool
ResultPacker::GetDocsumBlob(const char **buf, uint32_t *buflen)
{
if (!_error &&
_entryIdx != _resClass->GetNumEntries())
{
_error = true;
LOG(error,
"ResultPacker: format error: %d fields are missing",
_resClass->GetNumEntries() - _entryIdx);
}
if (_error) {
*buf = NULL;
*buflen = 0;
return false;
} else {
*buf = _buf.GetDrainPos();
*buflen = _buf.GetUsedLen();
return true;
}
}
void
ResultPacker::GetDocsumBlobForce(const char **buf, uint32_t *buflen)
{
*buf = _buf.GetDrainPos();
*buflen = _buf.GetUsedLen();
}
}
}
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