Add new APIs for recommendations summary at Clusters and Namespaces level

src/main/java/com/autotune/analyzer/Analyzer.java

@@ -51,6 +51,8 @@ public static void addServlets(ServletContextHandler context) {
         context.addServlet(ListRecommendations.class, ServerContext.RECOMMEND_RESULTS);
         context.addServlet(PerformanceProfileService.class, ServerContext.CREATE_PERF_PROFILE);
         context.addServlet(PerformanceProfileService.class, ServerContext.LIST_PERF_PROFILES);
+        context.addServlet(ListClusters.class, ServerContext.LIST_CLUSTER_NAMES);
+        context.addServlet(Summarize.class, ServerContext.SUMMARIZE);
 
         // Adding UI support API's
         context.addServlet(ListNamespaces.class, ServerContext.LIST_NAMESPACES);

src/main/java/com/autotune/analyzer/recommendations/Recommendation.java

@@ -150,6 +150,8 @@ public String toString() {
                 ", confidence_level=" + confidence_level +
                 ", config=" + config +
                 ", current=" + currentConfig +
+                ", variation=" + variation +
+                ", notifications=" + notifications +
                 '}';
     }
 }

src/main/java/com/autotune/analyzer/recommendations/RecommendationConfigItem.java

@@ -33,6 +33,9 @@ public RecommendationConfigItem() {
 
     }
 
+    public RecommendationConfigItem(Double amount) {
+        this.amount = amount;
+    }
     public String getErrorMsg() {
         return errorMsg;
     }
@@ -48,4 +51,21 @@ public Double getAmount() {
     public String getFormat() {
         return format;
     }
+
+    public void setAmount(Double amount) {
+        this.amount = amount;
+    }
+
+    public void setFormat(String format) {
+        this.format = format;
+    }
+
+    @Override
+    public String toString() {
+        return "RecommendationConfigItem{" +
+                "amount=" + amount +
+                ", format='" + format + '\'' +
+                ", errorMsg='" + errorMsg + '\'' +
+                '}';
+    }
 }

src/main/java/com/autotune/analyzer/recommendations/summary/ActionSummary.java

@@ -0,0 +1,144 @@
+/*******************************************************************************
+ * Copyright (c) 2023 Red Hat, IBM Corporation and others.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *******************************************************************************/
+
+package com.autotune.analyzer.recommendations.summary;
+
+import com.autotune.analyzer.utils.AnalyzerConstants;
+import com.autotune.utils.KruizeConstants;
+import com.google.gson.annotations.SerializedName;
+
+import java.util.HashMap;
+
+public class ActionSummary {
+    @SerializedName(KruizeConstants.JSONKeys.IDLE)
+    private HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> idle;
+    @SerializedName(KruizeConstants.JSONKeys.OPTIMIZED)
+    private HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> optimized;
+    @SerializedName(KruizeConstants.JSONKeys.CRITICAL)
+    private HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> critical;
+    @SerializedName(KruizeConstants.JSONKeys.OPTIMIZABLE)
+    private HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> optimizable;
+    @SerializedName(KruizeConstants.JSONKeys.ERROR)
+    private HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> error;
+    @SerializedName(KruizeConstants.JSONKeys.INFO)
+    private HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> info;
+    @SerializedName(KruizeConstants.JSONKeys.TOTAL)
+    private HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> total;
+
+    public ActionSummary() {
+        this.idle = new HashMap<>();
+        this.optimized = new HashMap<>();
+        this.critical = new HashMap<>();
+        this.optimizable = new HashMap<>();
+        this.error = new HashMap<>();
+        this.info = new HashMap<>();
+        this.total = new HashMap<>();
+    }
+
+    public HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> getIdle() {
+        return idle;
+    }
+
+    public void setIdle(HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> idle) {
+        this.idle = idle;
+    }
+
+    public HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> getOptimized() {
+        return optimized;
+    }
+
+    public void setOptimized(HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> optimized) {
+        this.optimized = optimized;
+    }
+
+    public HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> getCritical() {
+        return critical;
+    }
+
+    public void setCritical(HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> critical) {
+        this.critical = critical;
+    }
+
+    public HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> getOptimizable() {
+        return optimizable;
+    }
+
+    public void setOptimizable(HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> optimizable) {
+        this.optimizable = optimizable;
+    }
+
+    public HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> getError() {
+        return error;
+    }
+
+    public void setError(HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> error) {
+        this.error = error;
+    }
+
+    public HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> getInfo() {
+        return info;
+    }
+
+    public void setInfo(HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> info) {
+        this.info = info;
+    }
+
+    public HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> getTotal() {
+        return total;
+    }
+
+    public void setTotal(HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> total) {
+        this.total = total;
+    }
+
+    public ActionSummary merge(ActionSummary other) {
+        mergeMap(idle, other.getIdle());
+        mergeMap(optimized, other.getOptimized());
+        mergeMap(critical, other.getCritical());
+        mergeMap(optimizable, other.getOptimizable());
+        mergeMap(error, other.getError());
+        mergeMap(info, other.getInfo());
+        mergeMap(total, other.getTotal());
+        return this;
+    }
+
+    private void mergeMap(HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> original, HashMap<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> toMerge) {
+        for (HashMap.Entry<AnalyzerConstants.ActionSummaryRecommendationItem, ResourceInfo> entry : toMerge.entrySet()) {
+            AnalyzerConstants.ActionSummaryRecommendationItem key = entry.getKey();
+            ResourceInfo value = entry.getValue();
+
+            ResourceInfo originalValue = original.get(key);
+            if (originalValue == null) {
+                original.put(key, value);
+            } else {
+                originalValue.setCount(originalValue.getCount() + value.getCount());
+                originalValue.getWorkloadNames().addAll(value.getWorkloadNames());
+            }
+        }
+    }
+    @Override
+    public String toString() {
+        return "ActionSummary{" +
+                "idle=" + idle +
+                ", optimized=" + optimized +
+                ", critical=" + critical +
+                ", optimizable=" + optimizable +
+                ", error=" + error +
+                ", info=" + info +
+                ", total=" + total +
+                '}';
+    }
+}

src/main/java/com/autotune/analyzer/recommendations/summary/NotificationsSummary.java

@@ -0,0 +1,97 @@
+/*******************************************************************************
+ * Copyright (c) 2023 Red Hat, IBM Corporation and others.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *******************************************************************************/
+
+package com.autotune.analyzer.recommendations.summary;
+
+public class NotificationsSummary {
+
+  private int info;
+
+  private int notice;
+
+  private int warning;
+
+  private int error;
+
+  private int critical;
+
+  public int getInfo() {
+    return info;
+  }
+
+  public void setInfo(int info) {
+    this.info = info;
+  }
+
+  public int getNotice() {
+    return notice;
+  }
+
+  public void setNotice(int notice) {
+    this.notice = notice;
+  }
+
+  public int getWarning() {
+    return warning;
+  }
+
+  public void setWarning(int warning) {
+    this.warning = warning;
+  }
+
+  public int getError() {
+    return error;
+  }
+
+  public void setError(int error) {
+    this.error = error;
+  }
+
+  public int getCritical() {
+    return critical;
+  }
+
+  public void setCritical(int critical) {
+    this.critical = critical;
+  }
+
+  public NotificationsSummary mergeNotificationsSummary(NotificationsSummary notifications1, NotificationsSummary notifications2) {
+
+    int infoCount = notifications1.getInfo() + notifications2.getInfo();
+    int noticeCount = notifications1.getNotice() + notifications2.getNotice();
+    int warningCount = notifications1.getWarning() + notifications2.getWarning();
+    int errorCount = notifications1.getError() + notifications2.getError();
+    int criticalCount = notifications1.getCritical() + notifications2.getCritical();
+
+    NotificationsSummary mergedSummary = new NotificationsSummary();
+    mergedSummary.setInfo(infoCount);
+    mergedSummary.setNotice(noticeCount);
+    mergedSummary.setWarning(warningCount);
+    mergedSummary.setError(errorCount);
+    mergedSummary.setCritical(criticalCount);
+    return mergedSummary;
+  }
+  @Override
+  public String toString() {
+    return "NotificationsSummary{" +
+            "info=" + info +
+            ", notice=" + notice +
+            ", warning=" + warning +
+            ", error=" + error +
+            ", critical=" + critical +
+            '}';
+  }
+}