Issue-243 Updated HealthCheckResponse state property to status

Signed-off-by: Prashanth G <pgunapal@ca.ibm.com>

README.adoc

@@ -1,5 +1,5 @@
 //
-// Copyright (c) 2016-2019 Contributors to the Eclipse Foundation
+// Copyright (c) 2016-2020 Contributors to the Eclipse Foundation
 //
 // See the NOTICES file(s) distributed with this work for additional
 // information regarding copyright ownership.
@@ -60,11 +60,11 @@ The runtime will _call()_ the _HealthCheck_ which in turn creates a _HealthCheck
 ```java
 public class HealthCheckResponse {
 
-    public enum State { UP, DOWN }
+    public enum Status { UP, DOWN }
 
     private final String name;
 
-    private final State state;
+    private final Status status;
 
     private final Optional<Map<String, Object>> data;
 
@@ -149,13 +149,13 @@ class MyChecks {
   @Produces
   @Liveness
   HealthCheck check1() {
-    return () -> HealthCheckResponse.named("heap-memory").state(getMemUsage() < 0.9).build();
+    return () -> HealthCheckResponse.named("heap-memory").status(getMemUsage() < 0.9).build();
   }
 
   @Produces
   @Readiness
   HealthCheck check2() {
-    return () -> HealthCheckResponse.named("cpu-usage").state(getCpuUsage() < 0.9).build();
+    return () -> HealthCheckResponse.named("cpu-usage").status(getCpuUsage() < 0.9).build();
   }
 }
 ```

api/src/main/java/org/eclipse/microprofile/health/HealthCheckResponse.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 Contributors to the Eclipse Foundation
+ * Copyright (c) 2017-2020 Contributors to the Eclipse Foundation
  *
  * See the NOTICES file(s) distributed with this work for additional
  * information regarding copyright ownership.
@@ -49,19 +49,19 @@ public class HealthCheckResponse {
 
     private final String name;
 
-    private final State state;
+    private final Status status;
 
     private final Optional<Map<String, Object>> data;
 
     /**
      * Constructor allowing instantiation from 3rd party framework like MicroProfile Rest client
      * @param name Health Check procedure's name
-     * @param state Health Check procedure's state
+     * @param status Health Check procedure's status
      * @param data additional data for Health Check procedure
      */
-    public HealthCheckResponse(String name, State state, Optional<Map<String, Object>> data) {
+    public HealthCheckResponse(String name, Status status, Optional<Map<String, Object>> data) {
         this.name = name;
-        this.state = state;
+        this.status = status;
         this.data = data;
     }
 
@@ -70,7 +70,7 @@ public HealthCheckResponse(String name, State state, Optional<Map<String, Object
      */
     public HealthCheckResponse() {
         name = null;
-        state = null;
+        status = null;
         data = null;
     }
 
@@ -146,14 +146,14 @@ private static HealthCheckResponseProvider getProvider() {
 
     // the actual contract
 
-    public enum State {UP, DOWN}
+    public enum Status {UP, DOWN}
 
     public String getName(){
         return name;
     }
 
-    public State getState(){
-        return state;
+    public Status getStatus(){
+        return status;
     }
 
     public Optional<Map<String, Object>> getData() {

api/src/main/java/org/eclipse/microprofile/health/HealthCheckResponseBuilder.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 Contributors to the Eclipse Foundation
+ * Copyright (c) 2017, 2020 Contributors to the Eclipse Foundation
  *
  * See the NOTICES file(s) distributed with this work for additional
  * information regarding copyright ownership.
@@ -75,15 +75,15 @@ public abstract class HealthCheckResponseBuilder {
     public abstract HealthCheckResponseBuilder withData(String key, boolean value);
 
     /**
-     * Sets the status of the health check response to {@link HealthCheckResponse.State#UP}.
+     * Sets the status of the health check response to {@link HealthCheckResponse.Status#UP}.
      * This implies that the health check was successful.
      *
      * @return this builder
      */
     public abstract HealthCheckResponseBuilder up();
 
     /**
-     * Sets the status of the health check response to {@link HealthCheckResponse.State#DOWN}.
+     * Sets the status of the health check response to {@link HealthCheckResponse.Status#DOWN}.
      * This implies that the health check was <i>not</i> successful.
      *
      * @return this builder
@@ -96,7 +96,7 @@ public abstract class HealthCheckResponseBuilder {
      * @param up the status
      * @return this builder
      */
-    public abstract HealthCheckResponseBuilder state(boolean up);
+    public abstract HealthCheckResponseBuilder status(boolean up);
 
     /**
      * Creates a {@link HealthCheckResponse} from the current builder.

api/src/main/java/org/eclipse/microprofile/health/package-info.java

@@ -1,6 +1,6 @@
 /*
  *******************************************************************************
- * Copyright (c) 2016-2017 Contributors to the Eclipse Foundation
+ * Copyright (c) 2016-2020 Contributors to the Eclipse Foundation
  *
  * See the NOTICE file(s) distributed with this work for additional
  * information regarding copyright ownership.
@@ -21,6 +21,6 @@
 /**
  * <p>Microprofile Health</p>
  **/
-@org.osgi.annotation.versioning.Version("1.2")
+@org.osgi.annotation.versioning.Version("2.0")
 package org.eclipse.microprofile.health;
 

spec/src/main/asciidoc/java-api.adoc

@@ -1,5 +1,5 @@
 //
-// Copyright (c) 2016-2019 Eclipse Microprofile Contributors:
+// Copyright (c) 2016-2020 Eclipse Microprofile Contributors:
 // See overview.adoc
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -78,11 +78,11 @@ The runtime will `call()` each `HealthCheck` which in turn creates a `HealthChec
 ```
 public class HealthCheckResponse {
 
-    public enum State { UP, DOWN }
+    public enum Status { UP, DOWN }
 
     public abstract String getName();
 
-    public abstract State getState();
+    public abstract Status getStatus();
 
     public abstract Optional<Map<String, Object>> getData();
 
@@ -177,13 +177,13 @@ class MyChecks {
   @Produces
   @Liveness
   HealthCheck check1() {
-    return () -> HealthCheckResponse.named("heap-memory").state(getMemUsage() < 0.9).build();
+    return () -> HealthCheckResponse.named("heap-memory").status(getMemUsage() < 0.9).build();
   }
 
   @Produces
   @Readiness
   HealthCheck check2() {
-    return () -> HealthCheckResponse.named("cpu-usage").state(getCpuUsage() < 0.9).build();
+    return () -> HealthCheckResponse.named("cpu-usage").status(getCpuUsage() < 0.9).build();
   }
 }
 ```

spec/src/main/asciidoc/protocol-wireformat.adoc

@@ -1,5 +1,5 @@
 //
-// Copyright (c) 2016-2017 Eclipse Microprofile Contributors:
+// Copyright (c) 2016-2020 Eclipse Microprofile Contributors:
 // See overview.adoc
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -120,11 +120,11 @@ Each provider MUST provide the REST/HTTP interaction, but MAY provide other prot
 
 === Wireformats
 
-* Producer MUST  support JSON encoded payload with simple UP/DOWN states
+* Producer MUST  support JSON encoded payload with simple UP/DOWN statuses
 * Producers MAY  support an additional information holder with key/value pairs to provide further context (i.e. disk.free.space=120mb).
 * The JSON response payload MUST be compatible with the one described in Appendix B
 * The JSON response MUST contain the `name` entry specifying the name of the check, to support protocols that support external identifier (i.e. URI)
-* The JSON response MUST contain the `status` entry specifying the state as String: “UP” or “DOWN”
+* The JSON response MUST contain the `status` entry specifying the status as String: “UP” or “DOWN”
 * The JSON MAY support an additional information holder to carry key value pairs that provide additional context
 
 [[health-check-procedures]]
@@ -205,7 +205,7 @@ Aspects regarding the secure access of health check information.
 The following table gives valid health check responses for all kinds of health checks:
 
 |===
-| Request | HTTP Status       | JSON Payload         | State  | Comment
+| Request | HTTP Status       | JSON Payload         | Status  | Comment
 | /health/live
   /health/ready
   /health

tck/src/main/java/org/eclipse/microprofile/health/tck/HealthCheckResponseValidationTest.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2020 Contributors to the Eclipse Foundation
+ *
+ * See the NOTICES file(s) distributed with this work for additional
+ * information regarding copyright ownership.
+ *
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ */
+
+package org.eclipse.microprofile.health.tck;
+
+import static org.eclipse.microprofile.health.tck.DeploymentUtils.createWarFileWithClasses;
+
+import java.util.List;
+
+import javax.json.JsonArray;
+import javax.json.JsonObject;
+
+import org.eclipse.microprofile.health.HealthCheckResponse;
+import org.eclipse.microprofile.health.tck.deployment.SuccessfulLiveness;
+import org.jboss.arquillian.container.test.api.Deployment;
+import org.jboss.arquillian.container.test.api.RunAsClient;
+import org.jboss.shrinkwrap.api.Archive;
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.ObjectMapper;
+
+/**
+ * @author Prashanth Gunapalasingam
+ */
+public class HealthCheckResponseValidationTest extends TCKBase {
+
+    @Deployment
+    public static Archive getDeployment() {
+        return createWarFileWithClasses(HealthCheckResponseValidationTest.class.getSimpleName(), SuccessfulLiveness.class);
+    }
+
+    /**
+     * Validates the HealthCheckResponse concrete class definition by verifying if its 
+     * deserialized properties correctly maps to the JSON schema protocol defined by the 
+     * specification and the JSON health check response returned by the implementation.
+     */
+    @Test
+    @RunAsClient
+    public void testValidateConcreteHealthCheckResponse() throws Exception {
+        Response response = getUrlHealthContents();
+
+        Assert.assertEquals(response.getStatus(), 200);
+
+        JsonObject json = readJson(response);
+        JsonArray checks = json.getJsonArray("checks");
+
+        ObjectMapper mapper = new ObjectMapper(); 
+        List<HealthCheckResponse> hcr = mapper.readValue(checks.toString(), new TypeReference<List<HealthCheckResponse>>() {});
+
+        // Validates the name property from the HealthCheckResponse class
+        Assert.assertEquals(
+                hcr.get(0).getName(),
+                "successful-check",
+                String.format("Unexpected value for the HealthCheckResponse \"name\" property : %s", hcr.get(0).getName())
+            );
+
+        // Validates the status property from the HealthCheckResponse class
+        Assert.assertEquals(hcr.get(0).getStatus(), HealthCheckResponse.Status.UP, 
+                "Expected a successful check status for the HealthCheckResponse \"status\" property.");
+    }
+}

tck/src/main/java/org/eclipse/microprofile/health/tck/deployment/DelegateHealth.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017 Contributors to the Eclipse Foundation
+ * Copyright (c) 2017-2020 Contributors to the Eclipse Foundation
  *
  * See the NOTICES file(s) distributed with this work for additional
  * information regarding copyright ownership.
@@ -40,6 +40,6 @@ public class DelegateHealth implements HealthCheck {
 
     @Override
     public HealthCheckResponse call() {
-        return HealthCheckResponse.named("delegate-check").state(delegate.isTheSystemHealthy()).build();
+        return HealthCheckResponse.named("delegate-check").status(delegate.isTheSystemHealthy()).build();
     }
 }