[COST] add ClusterBean to MigrationCost and revise Balancer#Plan

Author: qoo332001

app/src/main/java/org/astraea/app/web/BalancerHandler.java

@@ -186,7 +186,8 @@ private PlanExecutionProgress progress(String taskId) {
                         solution ->
                             new PlanReport(
                                 changes.apply(solution),
-                                MigrationCost.migrationCosts(contextCluster, solution.proposal())))
+                                MigrationCost.migrationCosts(
+                                    contextCluster, solution.proposal(), solution.clusterBean())))
                     .orElse(null);
     var phase = balancerConsole.taskPhase(taskId).orElseThrow();
     return new PlanExecutionProgress(

common/src/main/java/org/astraea/common/balancer/Balancer.java

@@ -24,6 +24,7 @@
 import org.astraea.common.balancer.algorithms.GreedyBalancer;
 import org.astraea.common.balancer.algorithms.SingleStepBalancer;
 import org.astraea.common.cost.ClusterCost;
+import org.astraea.common.metrics.ClusterBean;
 
 public interface Balancer {
 
@@ -32,41 +33,24 @@ public interface Balancer {
    */
   Optional<Plan> offer(AlgorithmConfig config);
 
-  class Plan {
-    private final ClusterInfo initialClusterInfo;
-    private final ClusterCost initialClusterCost;
-
-    private final ClusterInfo proposal;
-    private final ClusterCost proposalClusterCost;
-
-    public Plan(
-        ClusterInfo initialClusterInfo,
-        ClusterCost initialClusterCost,
-        ClusterInfo proposal,
-        ClusterCost proposalClusterCost) {
-      this.initialClusterInfo = initialClusterInfo;
-      this.initialClusterCost = initialClusterCost;
-      this.proposal = proposal;
-      this.proposalClusterCost = proposalClusterCost;
-    }
-
-    public ClusterInfo initialClusterInfo() {
-      return initialClusterInfo;
-    }
+  record Plan(
+      ClusterBean clusterBean,
+      ClusterInfo initialClusterInfo,
+      ClusterCost initialClusterCost,
+      ClusterInfo proposal,
+      ClusterCost proposalClusterCost) {
 
     /**
      * The {@link ClusterCost} score of the original {@link ClusterInfo} when this plan is start
      * generating.
      */
+    @Override
     public ClusterCost initialClusterCost() {
       return initialClusterCost;
     }
 
-    public ClusterInfo proposal() {
-      return proposal;
-    }
-
     /** The {@link ClusterCost} score of the proposed new allocation. */
+    @Override
     public ClusterCost proposalClusterCost() {
       return proposalClusterCost;
     }

common/src/main/java/org/astraea/common/balancer/algorithms/GreedyBalancer.java

@@ -209,6 +209,7 @@ public Optional<Plan> offer(AlgorithmConfig config) {
                 .map(
                     newAllocation ->
                         new Plan(
+                            config.clusterBean(),
                             config.clusterInfo(),
                             initialCost,
                             newAllocation,
@@ -254,6 +255,7 @@ public Optional<Plan> offer(AlgorithmConfig config) {
                   .overflow()) {
             return Optional.of(
                 new Plan(
+                    config.clusterBean(),
                     config.clusterInfo(),
                     config.clusterCostFunction().clusterCost(config.clusterInfo(), clusterBean),
                     currentClusterInfo,

common/src/main/java/org/astraea/common/balancer/algorithms/SingleStepBalancer.java

@@ -136,6 +136,7 @@ public Optional<Plan> offer(AlgorithmConfig config) {
         .map(
             newAllocation ->
                 new Plan(
+                    config.clusterBean(),
                     config.clusterInfo(),
                     currentCost,
                     newAllocation,
@@ -155,6 +156,7 @@ public Optional<Plan> offer(AlgorithmConfig config) {
                       .overflow()) {
                 return Optional.of(
                     new Plan(
+                        config.clusterBean(),
                         config.clusterInfo(),
                         config.clusterCostFunction().clusterCost(config.clusterInfo(), clusterBean),
                         currentClusterInfo,

common/src/main/java/org/astraea/common/cost/MigrationCost.java

@@ -25,6 +25,7 @@
 import org.astraea.common.admin.Broker;
 import org.astraea.common.admin.ClusterInfo;
 import org.astraea.common.admin.Replica;
+import org.astraea.common.metrics.ClusterBean;
 
 public class MigrationCost {
 
@@ -37,7 +38,8 @@ public class MigrationCost {
   public static final String REPLICA_LEADERS_TO_REMOVE = "leader number to remove";
   public static final String CHANGED_REPLICAS = "changed replicas";
 
-  public static List<MigrationCost> migrationCosts(ClusterInfo before, ClusterInfo after) {
+  public static List<MigrationCost> migrationCosts(
+      ClusterInfo before, ClusterInfo after, ClusterBean clusterBean) {
     var migrateInBytes = recordSizeToSync(before, after);
     var migrateOutBytes = recordSizeToFetch(before, after);
     var migrateReplicaNum = replicaNumChanged(before, after);

common/src/test/java/org/astraea/common/balancer/BalancerConsoleTest.java

@@ -400,7 +400,12 @@ public Optional<Plan> offer(AlgorithmConfig config) {
                   costFunction,
                   Duration.ofMillis(sampleTimeMs - (System.currentTimeMillis() - startMs)));
             return Optional.of(
-                new Plan(config.clusterInfo(), () -> 0, config.clusterInfo(), () -> 0));
+                new Plan(
+                    config.clusterBean(),
+                    config.clusterInfo(),
+                    () -> 0,
+                    config.clusterInfo(),
+                    () -> 0));
           }
         };
 

gui/src/main/java/org/astraea/gui/tab/health/BalancerNode.java

@@ -105,7 +105,9 @@ static List<Map<String, Object>> costResult(Balancer.Plan plan) {
                                     })
                                 .put(migrationCost.name, count)));
 
-    process.accept(MigrationCost.migrationCosts(plan.initialClusterInfo(), plan.proposal()));
+    process.accept(
+        MigrationCost.migrationCosts(
+            plan.initialClusterInfo(), plan.proposal(), plan.clusterBean()));
     return List.copyOf(map.values());
   }
 

gui/src/test/java/org/astraea/gui/tab/health/BalancerNodeTest.java

@@ -30,6 +30,7 @@
 import org.astraea.common.admin.Replica;
 import org.astraea.common.balancer.Balancer;
 import org.astraea.common.cost.ReplicaLeaderSizeCost;
+import org.astraea.common.metrics.ClusterBean;
 import org.astraea.gui.Context;
 import org.astraea.gui.pane.Argument;
 import org.astraea.it.Service;
@@ -150,6 +151,7 @@ void testResult() {
     var results =
         BalancerNode.assignmentResult(
             new Balancer.Plan(
+                ClusterBean.EMPTY,
                 beforeClusterInfo,
                 () -> 1.0D,
                 ClusterInfo.of("fake", allNodes, Map.of(), afterReplicas),