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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "indexdisklayout.h"
#include "index_disk_dir.h"
#include <sstream>
namespace searchcorespi::index {
const vespalib::string
IndexDiskLayout::FlushDirPrefix = vespalib::string("index.flush.");
const vespalib::string
IndexDiskLayout::FusionDirPrefix = vespalib::string("index.fusion.");
const vespalib::string
IndexDiskLayout::SerialNumTag = vespalib::string("Serial num");
IndexDiskLayout::IndexDiskLayout(const vespalib::string &baseDir)
: _baseDir(baseDir)
{
}
vespalib::string
IndexDiskLayout::getFlushDir(uint32_t sourceId) const
{
std::ostringstream ost;
ost << _baseDir << "/" << FlushDirPrefix << sourceId;
return ost.str();
}
vespalib::string
IndexDiskLayout::getFusionDir(uint32_t sourceId) const
{
std::ostringstream ost;
ost << _baseDir << "/" << FusionDirPrefix << sourceId;
return ost.str();
}
vespalib::string
IndexDiskLayout::getSerialNumFileName(const vespalib::string &dir)
{
return dir + "/serial.dat";
}
vespalib::string
IndexDiskLayout::getSchemaFileName(const vespalib::string &dir)
{
return dir + "/schema.txt";
}
vespalib::string
IndexDiskLayout::getSelectorFileName(const vespalib::string &dir)
{
return dir + "/selector";
}
IndexDiskDir
IndexDiskLayout::get_index_disk_dir(const vespalib::string& dir)
{
auto name = dir.substr(dir.rfind('/') + 1);
const vespalib::string* prefix = nullptr;
bool fusion = false;
if (name.find(FlushDirPrefix) == 0) {
prefix = &FlushDirPrefix;
} else if (name.find(FusionDirPrefix) == 0) {
prefix = &FusionDirPrefix;
fusion = true;
} else {
return IndexDiskDir(); // invalid
}
std::istringstream ist(name.substr(prefix->size()));
uint32_t id = 0;
ist >> id;
return IndexDiskDir(id, fusion); // invalid if id == 0u
}
}
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