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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "idealnodecalculatorimpl.h"
#include "distribution.h"
#include <vespa/vespalib/util/exceptions.h>
#include <ostream>
#include <cassert>
namespace storage::lib {
IdealNodeList::IdealNodeList() noexcept = default;
IdealNodeList::~IdealNodeList() = default;
void
IdealNodeList::print(std::ostream& out, bool , const std::string &) const
{
out << "[";
for (uint32_t i=0; i<_idealNodes.size(); ++i) {
if (i != 0) out << ", ";
out << _idealNodes[i];
}
out << "]";
}
IdealNodeCalculatorImpl::IdealNodeCalculatorImpl()
: _distribution(0),
_clusterState(0)
{
initUpStateMapping();
}
IdealNodeCalculatorImpl::~IdealNodeCalculatorImpl() = default;
void
IdealNodeCalculatorImpl::setDistribution(const Distribution& d) {
_distribution = &d;
}
void
IdealNodeCalculatorImpl::setClusterState(const ClusterState& cs) {
_clusterState = &cs;
}
IdealNodeList
IdealNodeCalculatorImpl::getIdealNodes(const NodeType& nodeType,
const document::BucketId& bucket,
UpStates upStates) const
{
assert(_clusterState != 0);
assert(_distribution != 0);
std::vector<uint16_t> nodes;
_distribution->getIdealNodes(nodeType, *_clusterState, bucket, nodes, _upStates[upStates]);
IdealNodeList list;
for (uint32_t i=0; i<nodes.size(); ++i) {
list.push_back(Node(nodeType, nodes[i]));
}
return list;
}
void
IdealNodeCalculatorImpl::initUpStateMapping() {
_upStates.clear();
_upStates.resize(UP_STATE_COUNT);
_upStates[UpInit] = "ui";
_upStates[UpInitMaintenance] = "uim";
for (uint32_t i=0; i<_upStates.size(); ++i) {
if (_upStates[i] == 0) {
throw vespalib::IllegalStateException("Failed to initialize up state. Code likely not updated "
"after another upstate was added.", VESPA_STRLOC);
}
}
}
}
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