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76 lines
2.2 KiB
Go
76 lines
2.2 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package assign
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import (
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"fmt"
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"math"
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)
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// NodeItem represents a node with score information for assignment
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type NodeItem struct {
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BaseItem
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fmt.Stringer
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NodeID int64
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AssignedScore float64
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CurrentScore float64
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}
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// NewNodeItem creates a new NodeItem with the given current score and node ID
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func NewNodeItem(currentScore int, nodeID int64) NodeItem {
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return NodeItem{
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BaseItem: BaseItem{},
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NodeID: nodeID,
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CurrentScore: float64(currentScore),
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}
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}
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func (b *NodeItem) getPriority() int {
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// if node lacks more score between assignedScore and currentScore, then higher priority
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return int(math.Ceil(b.CurrentScore - b.AssignedScore))
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}
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func (b *NodeItem) setPriority(priority int) {
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panic("not supported, use updatePriority instead")
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}
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func (b *NodeItem) GetPriorityWithCurrentScoreDelta(delta float64) int {
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return int(math.Ceil((b.CurrentScore + delta) - b.AssignedScore))
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}
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func (b *NodeItem) GetCurrentScore() float64 {
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return b.CurrentScore
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}
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func (b *NodeItem) AddCurrentScoreDelta(delta float64) {
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b.CurrentScore += delta
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b.priority = b.getPriority()
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}
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func (b *NodeItem) GetAssignedScore() float64 {
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return b.AssignedScore
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}
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func (b *NodeItem) AddAssignedScore(delta float64) {
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b.AssignedScore += delta
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b.priority = b.getPriority()
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}
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func (b *NodeItem) String() string {
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return fmt.Sprintf("{NodeID: %d, AssignedScore: %f, CurrentScore: %f, Priority: %d}", b.NodeID, b.AssignedScore, b.CurrentScore, b.priority)
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}
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