Define canary config classifiers model. (#26)

kayenta-core/src/main/java/com/netflix/kayenta/canary/CanaryClassifierConfig.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright 2017 Google, Inc.
+ *
+ * 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.netflix.kayenta.canary;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Singular;
+import lombok.ToString;
+
+import javax.validation.constraints.NotNull;
+import java.util.Map;
+
+@Builder
+@ToString
+@NoArgsConstructor
+@AllArgsConstructor
+@JsonInclude(JsonInclude.Include.NON_NULL)
+public class CanaryClassifierConfig {
+
+  @NotNull
+  @Singular
+  @Getter
+  private Map<String, Double> groupWeights;
+
+  @NotNull
+  @Getter
+  private CanaryClassifierThresholdsConfig scoreThresholds;
+}
+
+@Builder
+@ToString
+@NoArgsConstructor
+@AllArgsConstructor
+@JsonInclude(JsonInclude.Include.NON_NULL)
+class CanaryClassifierThresholdsConfig {
+
+  @NotNull
+  @Getter
+  private Double pass;
+
+  @NotNull
+  @Getter
+  private Double marginal;
+}

kayenta-core/src/main/java/com/netflix/kayenta/canary/CanaryConfig.java

@@ -34,7 +34,6 @@
 @NoArgsConstructor
 @AllArgsConstructor
 @JsonInclude(JsonInclude.Include.NON_NULL)
-// TODO(duftler): Define canary config 'classifiers' model class.
 public class CanaryConfig {
 
   @NotNull
@@ -79,4 +78,8 @@ public class CanaryConfig {
   @Singular
   @Getter
   private Map<String, CanaryServiceConfig> services;
+
+  @NotNull
+  @Getter
+  private CanaryClassifierConfig classifier;
 }