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impl.go
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impl.go
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package node
import (
"github.com/Filecoin-Titan/titan/api/types"
)
// GetAllValidCandidateNodes Get all valid candidate nodes
func (m *Manager) GetAllValidCandidateNodes() ([]string, []*Node) {
var ids []string
var nodes []*Node
m.candidateNodes.Range(func(key, value interface{}) bool {
nodeID := key.(string)
node := value.(*Node)
if node.IsAbnormal() {
return true
}
ids = append(ids, nodeID)
nodes = append(nodes, node)
return true
})
return ids, nodes
}
// GetCandidateNodes return n candidate node
func (m *Manager) GetCandidateNodes(num int, filterValidators bool) []*Node {
var out []*Node
m.candidateNodes.Range(func(key, value interface{}) bool {
node := value.(*Node)
if filterValidators {
isValidator, err := m.IsValidator(node.NodeID)
if err != nil {
return true
}
if isValidator {
return true
}
}
out = append(out, node)
return len(out) < num
})
return out
}
// GetNode retrieves a node with the given node ID
func (m *Manager) GetNode(nodeID string) *Node {
edge := m.GetEdgeNode(nodeID)
if edge != nil {
return edge
}
candidate := m.GetCandidateNode(nodeID)
if candidate != nil {
return candidate
}
return nil
}
// GetEdgeNode retrieves an edge node with the given node ID
func (m *Manager) GetEdgeNode(nodeID string) *Node {
nodeI, exist := m.edgeNodes.Load(nodeID)
if exist && nodeI != nil {
node := nodeI.(*Node)
return node
}
return nil
}
// GetCandidateNode retrieves a candidate node with the given node ID
func (m *Manager) GetCandidateNode(nodeID string) *Node {
nodeI, exist := m.candidateNodes.Load(nodeID)
if exist && nodeI != nil {
node := nodeI.(*Node)
return node
}
return nil
}
// GetOnlineNodeCount returns online node count of the given type
func (m *Manager) GetOnlineNodeCount(nodeType types.NodeType) int {
i := 0
if nodeType == types.NodeUnknown || nodeType == types.NodeCandidate {
i += m.Candidates
}
if nodeType == types.NodeUnknown || nodeType == types.NodeEdge {
i += m.Edges
}
return i
}
// NodeOnline registers a node as online
func (m *Manager) NodeOnline(node *Node, info *types.NodeInfo) error {
err := m.saveInfo(info)
if err != nil {
return err
}
switch node.Type {
case types.NodeEdge:
m.storeEdgeNode(node)
case types.NodeCandidate, types.NodeValidator:
m.storeCandidateNode(node)
}
// m.UpdateNodeDiskUsage(info.NodeID, info.DiskUsage)
return nil
}
// GetRandomCandidate returns a random candidate node
func (m *Manager) GetRandomCandidate() (*Node, int) {
nodeID, weight := m.weightMgr.getCandidateWeightRandom()
return m.GetCandidateNode(nodeID), weight
}
// GetRandomEdge returns a random edge node
func (m *Manager) GetRandomEdge() (*Node, int) {
nodeID, weight := m.weightMgr.getEdgeWeightRandom()
return m.GetEdgeNode(nodeID), weight
}