[AAI] Export relevant key metrics for monitoring in Prometheus

Make the key metrics available to the monitoring system by
instrumenting the code.
The Key metrics are available via
/actuator/prometheus
/actuator/info
/actuator/health

Issue-ID: AAI-3343
Signed-off-by: Roger Yuan <roger.yuan@yoppworks.com>
Change-Id: I69f7eafb5105a04369526c70902ac7b676038c36

8 files changed, 74 insertions, 0 deletions

diff --git a/aai-resources/src/main/java/org/onap/aai/rest/BulkAddConsumer.java b/aai-resources/src/main/java/org/onap/aai/rest/BulkAddConsumer.java
index 0c316bf..e28cce9 100644
--- a/aai-resources/src/main/java/org/onap/aai/rest/BulkAddConsumer.java
+++ b/aai-resources/src/main/java/org/onap/aai/rest/BulkAddConsumer.java
@@ -21,9 +21,11 @@ package org.onap.aai.rest;
 
 import javax.ws.rs.Path;
 
+import io.micrometer.core.annotation.Timed;
 import org.onap.aai.restcore.HttpMethod;
 
 @Path("{version: v[1-9][0-9]*|latest}/bulkadd")
+@Timed
 public class BulkAddConsumer extends BulkConsumer {
 
 	@Override
diff --git a/aai-resources/src/main/java/org/onap/aai/rest/BulkProcessConsumer.java b/aai-resources/src/main/java/org/onap/aai/rest/BulkProcessConsumer.java
index aac2deb..1a03656 100644
--- a/aai-resources/src/main/java/org/onap/aai/rest/BulkProcessConsumer.java
+++ b/aai-resources/src/main/java/org/onap/aai/rest/BulkProcessConsumer.java
@@ -21,9 +21,11 @@ package org.onap.aai.rest;
 
 import javax.ws.rs.Path;
 
+import io.micrometer.core.annotation.Timed;
 import org.onap.aai.restcore.HttpMethod;
 
 @Path("{version: v[1-9][0-9]*|latest}/bulkprocess")
+@Timed
 public class BulkProcessConsumer extends BulkConsumer {
 
 	@Override
diff --git a/aai-resources/src/main/java/org/onap/aai/rest/ExampleConsumer.java b/aai-resources/src/main/java/org/onap/aai/rest/ExampleConsumer.java
index 74884e2..8541844 100644
--- a/aai-resources/src/main/java/org/onap/aai/rest/ExampleConsumer.java
+++ b/aai-resources/src/main/java/org/onap/aai/rest/ExampleConsumer.java
@@ -31,6 +31,7 @@ import javax.ws.rs.core.Response;
 import javax.ws.rs.core.Response.Status;
 import javax.ws.rs.core.UriInfo;
 
+import io.micrometer.core.annotation.Timed;
 import org.onap.aai.config.SpringContextAware;
 import org.onap.aai.exceptions.AAIException;
 import org.onap.aai.introspection.Introspector;
@@ -47,6 +48,7 @@ import org.onap.aai.restcore.RESTAPI;
  * The Class ExampleConsumer.
  */
 @Path("{version: v[1-9][0-9]*|latest}/examples")
+@Timed
 public class ExampleConsumer extends RESTAPI {
 
 	
diff --git a/aai-resources/src/main/java/org/onap/aai/rest/LegacyMoxyConsumer.java b/aai-resources/src/main/java/org/onap/aai/rest/LegacyMoxyConsumer.java
index c9991cc..3881b09 100644
--- a/aai-resources/src/main/java/org/onap/aai/rest/LegacyMoxyConsumer.java
+++ b/aai-resources/src/main/java/org/onap/aai/rest/LegacyMoxyConsumer.java
@@ -19,6 +19,7 @@
  */
 package org.onap.aai.rest;
 
+import io.micrometer.core.annotation.Timed;
 import io.swagger.jaxrs.PATCH;
 import org.apache.commons.lang3.ObjectUtils;
 import org.javatuples.Pair;
@@ -58,6 +59,7 @@ import java.util.stream.Collectors;
  */
 @Controller
 @Path("{version: v[1-9][0-9]*|latest}")
+@Timed
 public class LegacyMoxyConsumer extends RESTAPI {
 
 	private static final Logger logger = LoggerFactory.getLogger(LegacyMoxyConsumer.class.getName());
diff --git a/aai-resources/src/main/java/org/onap/aai/rest/URLFromVertexIdConsumer.java b/aai-resources/src/main/java/org/onap/aai/rest/URLFromVertexIdConsumer.java
index 9293569..acaec5e 100644
--- a/aai-resources/src/main/java/org/onap/aai/rest/URLFromVertexIdConsumer.java
+++ b/aai-resources/src/main/java/org/onap/aai/rest/URLFromVertexIdConsumer.java
@@ -19,6 +19,7 @@
  */
 package org.onap.aai.rest;
 
+import io.micrometer.core.annotation.Timed;
 import org.apache.tinkerpop.gremlin.structure.Vertex;
 import org.onap.aai.config.SpringContextAware;
 import org.onap.aai.exceptions.AAIException;
@@ -45,6 +46,7 @@ import java.util.Iterator;
  * The Class URLFromVertexIdConsumer.
  */
 @Path("{version: v[1-9][0-9]*|latest}/generateurl")
+@Timed
 public class URLFromVertexIdConsumer extends RESTAPI {
 	private ModelType introspectorFactoryType = ModelType.MOXY;
 
diff --git a/aai-resources/src/main/java/org/onap/aai/rest/VertexIdConsumer.java b/aai-resources/src/main/java/org/onap/aai/rest/VertexIdConsumer.java
index 6637d41..61853e3 100644
--- a/aai-resources/src/main/java/org/onap/aai/rest/VertexIdConsumer.java
+++ b/aai-resources/src/main/java/org/onap/aai/rest/VertexIdConsumer.java
@@ -19,6 +19,7 @@
  */
 package org.onap.aai.rest;
 
+import io.micrometer.core.annotation.Timed;
 import org.apache.tinkerpop.gremlin.structure.Vertex;
 import org.javatuples.Pair;
 import org.onap.aai.config.SpringContextAware;
@@ -48,6 +49,7 @@ import java.util.List;
  * The Class VertexIdConsumer.
  */
 @Path("{version: v[1-9][0-9]*|latest}/resources")
+@Timed
 public class VertexIdConsumer extends RESTAPI {
 
 	private ModelType introspectorFactoryType = ModelType.MOXY;
diff --git a/aai-resources/src/main/java/org/onap/aai/rest/bulk/BulkSingleTransactionConsumer.java b/aai-resources/src/main/java/org/onap/aai/rest/bulk/BulkSingleTransactionConsumer.java
index b7b4873..a5e5d7c 100644
--- a/aai-resources/src/main/java/org/onap/aai/rest/bulk/BulkSingleTransactionConsumer.java
+++ b/aai-resources/src/main/java/org/onap/aai/rest/bulk/BulkSingleTransactionConsumer.java
@@ -23,6 +23,7 @@ import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonParser;
+import io.micrometer.core.annotation.Timed;
 import org.javatuples.Pair;
 import org.onap.aai.config.SpringContextAware;
 import org.onap.aai.exceptions.AAIException;
@@ -55,6 +56,7 @@ import java.net.URI;
 import java.util.*;
 
 @Path(value = "{version: v[1-9][0-9]*|latest}/bulk/single-transaction")
+@Timed
 public class BulkSingleTransactionConsumer extends RESTAPI {
 
 	private static final Set<String> validOperations = Collections.unmodifiableSet(new HashSet<>(Arrays.asList("put", "patch", "delete")));
diff --git a/aai-resources/src/main/java/org/onap/aai/web/MicrometerConfiguration.java b/aai-resources/src/main/java/org/onap/aai/web/MicrometerConfiguration.java
new file mode 100644
index 0000000..0be4e0b
--- /dev/null
+++ b/aai-resources/src/main/java/org/onap/aai/web/MicrometerConfiguration.java
@@ -0,0 +1,60 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.aai.web;
+import io.micrometer.core.instrument.Tag;
+import io.micrometer.core.instrument.Tags;
+import io.micrometer.jersey2.server.JerseyTags;
+import io.micrometer.jersey2.server.JerseyTagsProvider;
+import org.glassfish.jersey.server.ContainerResponse;
+import org.glassfish.jersey.server.monitoring.RequestEvent;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * Configuration Class to add customized tags to http metrics scraped in /actuator/prometheus endpoint
+ */
+@Configuration
+public class MicrometerConfiguration {
+    private static final String TAG_AAI_URI = "aai_uri";
+    private static final String NOT_AVAILABLE = "NOT AVAILABLE";
+
+    @Bean
+    public JerseyTagsProvider jerseyTagsProvider() {
+        return new JerseyTagsProvider() {
+            @Override
+            public Iterable httpRequestTags(RequestEvent event) {
+                ContainerResponse response = event.getContainerResponse();
+                return Tags.of(JerseyTags.method(event.getContainerRequest()),
+                        JerseyTags.exception(event), JerseyTags.status(response), JerseyTags.outcome(response), getAaiUriTag(event));
+            }
+            private Tag getAaiUriTag(RequestEvent event) {
+                String aai_uri = event.getUriInfo().getRequestUri().toString();
+                if (aai_uri == null) {
+                    aai_uri = NOT_AVAILABLE;
+                }
+                return Tag.of(TAG_AAI_URI, aai_uri);
+            }
+            @Override
+            public Iterable<Tag> httpLongRequestTags(RequestEvent event) {
+                return Tags.of(JerseyTags.method(event.getContainerRequest()), JerseyTags.uri(event));
+            }
+        };
+    }
+}
\ No newline at end of file