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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "flush_engine_explorer.h"
#include "flushengine.h"
#include <vespa/vespalib/data/slime/cursor.h>
#include <vespa/vespalib/data/slime/inserter.h>
using vespalib::slime::Cursor;
using vespalib::slime::Inserter;
using vespalib::StateExplorer;
using searchcorespi::IFlushTarget;
namespace proton {
namespace {
void
convertToSlime(const FlushEngine::FlushMetaSet &flushingTargets, Cursor &array)
{
for (const auto &target : flushingTargets) {
Cursor &object = array.addObject();
object.setString("name", target.getName());
object.setString("startTime", vespalib::to_string(target.getStart()));
object.setDouble("elapsedTime", vespalib::to_s(target.elapsed()));
}
}
void
sortTargetList(FlushContext::List &allTargets)
{
std::sort(allTargets.begin(), allTargets.end(),
[](const FlushContext::SP &rhs, const FlushContext::SP &lhs) {
return rhs->getTarget()->getFlushedSerialNum() <
lhs->getTarget()->getFlushedSerialNum();
});
}
void
convertToSlime(const FlushContext::List &allTargets,
const vespalib::system_time &now,
Cursor &array)
{
for (const auto &ctx : allTargets) {
Cursor &object = array.addObject();
object.setString("name", ctx->getName());
const IFlushTarget::SP &target = ctx->getTarget();
object.setLong("flushedSerialNum", target->getFlushedSerialNum());
object.setLong("memoryGain", target->getApproxMemoryGain().gain());
object.setLong("diskGain", target->getApproxDiskGain().gain());
object.setString("lastFlushTime", vespalib::to_string(target->getLastFlushTime()));
vespalib::duration timeSinceLastFlush = now - target->getLastFlushTime();
object.setDouble("timeSinceLastFlush", vespalib::to_s(timeSinceLastFlush));
object.setBool("needUrgentFlush", target->needUrgentFlush());
}
}
}
FlushEngineExplorer::FlushEngineExplorer(const FlushEngine &engine)
: _engine(engine)
{
}
void
FlushEngineExplorer::get_state(const Inserter &inserter, bool full) const
{
Cursor &object = inserter.insertObject();
if (full) {
vespalib::system_time now = vespalib::system_clock::now();
convertToSlime(_engine.getCurrentlyFlushingSet(), object.setArray("flushingTargets"));
FlushContext::List allTargets = _engine.getTargetList(true);
sortTargetList(allTargets);
convertToSlime(allTargets, now, object.setArray("allTargets"));
}
}
} // namespace proton
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