Setup cache for getNovaClient

Setup cache for getNovaClient

Issue-ID: SO-2946
Signed-off-by: Benjamin, Max (mb388a) <mb388a@att.com>
Change-Id: I2031c684fee65d73c1528ec6a60c95c1c60de1d5

4 files changed, 116 insertions, 28 deletions

diff --git a/adapters/mso-adapter-utils/pom.xml b/adapters/mso-adapter-utils/pom.xml
index b8dec73f80..a121d2d89b 100644
--- a/adapters/mso-adapter-utils/pom.xml
+++ b/adapters/mso-adapter-utils/pom.xml
@@ -152,5 +152,13 @@
       <artifactId>mso-requests-db</artifactId>
       <version>${project.version}</version>
     </dependency>
+    <dependency>
+      <groupId>org.springframework.boot</groupId>
+      <artifactId>spring-boot-starter-cache</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.github.ben-manes.caffeine</groupId>
+      <artifactId>caffeine</artifactId>
+    </dependency>
   </dependencies>
 </project>
diff --git a/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaCacheConfig.java b/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaCacheConfig.java
new file mode 100644
index 0000000000..2f7d19ff1d
--- /dev/null
+++ b/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaCacheConfig.java
@@ -0,0 +1,42 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 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.so.openstack.utils;
+
+import java.util.concurrent.TimeUnit;
+import org.springframework.cache.CacheManager;
+import org.springframework.cache.caffeine.CaffeineCacheManager;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import com.github.benmanes.caffeine.cache.Caffeine;
+
+@Configuration
+public class NovaCacheConfig {
+
+    @Bean
+    public CacheManager cacheManager() {
+        CaffeineCacheManager cacheManager = new CaffeineCacheManager("novaClient");
+        cacheManager.setCaffeine(caffeineCacheBuilder());
+        return cacheManager;
+    }
+
+    private Caffeine<Object, Object> caffeineCacheBuilder() {
+        return Caffeine.newBuilder().initialCapacity(100).maximumSize(500).expireAfterWrite(90, TimeUnit.MINUTES);
+    }
+}
diff --git a/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaClient.java b/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaClient.java
new file mode 100644
index 0000000000..c5eeb34157
--- /dev/null
+++ b/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaClient.java
@@ -0,0 +1,52 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2020 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.so.openstack.utils;
+
+import org.onap.so.cloud.authentication.KeystoneAuthHolder;
+import org.onap.so.openstack.exceptions.MsoException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.cache.annotation.Cacheable;
+import org.springframework.stereotype.Component;
+import com.woorea.openstack.nova.Nova;
+
+
+@Component
+public class NovaClient extends MsoCommonUtils {
+
+    private static final Logger logger = LoggerFactory.getLogger(NovaClient.class);
+
+    /**
+     * Gets the Nova client
+     *
+     * @param cloudSiteId id of the cloud site
+     * @param tenantId the tenant id
+     * @return the Nova client
+     * @throws MsoException the mso exception
+     */
+    @Cacheable(value = "novaClient")
+    public Nova getNovaClient(String cloudSiteId, String tenantId) throws MsoException {
+        KeystoneAuthHolder keystone = getKeystoneAuthHolder(cloudSiteId, tenantId, "compute");
+        Nova novaClient = new Nova(keystone.getServiceUrl());
+        novaClient.token(keystone.getId());
+        return novaClient;
+    }
+}
diff --git a/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaClientImpl.java b/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaClientImpl.java
index 5d28eaaf71..dc276d9b8f 100644
--- a/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaClientImpl.java
+++ b/adapters/mso-adapter-utils/src/main/java/org/onap/so/openstack/utils/NovaClientImpl.java
@@ -21,11 +21,11 @@
 package org.onap.so.openstack.utils;
 
 import java.io.IOException;
-import org.onap.so.cloud.authentication.KeystoneAuthHolder;
 import org.onap.so.openstack.exceptions.MsoCloudSiteNotFound;
 import org.onap.so.openstack.exceptions.MsoException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 import com.fasterxml.jackson.databind.JsonNode;
 import com.fasterxml.jackson.databind.ObjectMapper;
@@ -50,21 +50,8 @@ public class NovaClientImpl extends MsoCommonUtils {
     /** The logger. */
     private static final Logger logger = LoggerFactory.getLogger(NovaClientImpl.class);
 
-    /**
-     * Gets the Nova client
-     *
-     * @param cloudSiteId id of the cloud site
-     * @param tenantId the tenant id
-     * @return the Nova client
-     * @throws MsoException the mso exception
-     */
-    private Nova getNovaClient(String cloudSiteId, String tenantId) throws MsoException {
-        KeystoneAuthHolder keystone = getKeystoneAuthHolder(cloudSiteId, tenantId, "compute");
-        Nova novaClient = new Nova(keystone.getServiceUrl());
-        novaClient.token(keystone.getId());
-        return novaClient;
-    }
-
+    @Autowired
+    private NovaClient client;
 
     /**
      * Query Networks
@@ -83,7 +70,7 @@ public class NovaClientImpl extends MsoCommonUtils {
     public Flavors queryFlavors(String cloudSiteId, String tenantId, int limit, String marker)
             throws MsoCloudSiteNotFound, NovaClientException {
         try {
-            Nova novaClient = getNovaClient(cloudSiteId, tenantId);
+            Nova novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<Flavors> request =
                     novaClient.flavors().list(false).queryParam("limit", limit).queryParam("marker", marker);
             return executeAndRecordOpenstackRequest(request, false);
@@ -108,8 +95,7 @@ public class NovaClientImpl extends MsoCommonUtils {
     public Flavor queryFlavorById(String cloudSiteId, String tenantId, String id)
             throws MsoCloudSiteNotFound, NovaClientException {
         try {
-            Nova novaClient = getNovaClient(cloudSiteId, tenantId);
-            novaClient = getNovaClient(cloudSiteId, tenantId);
+            Nova novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<Flavor> request = novaClient.flavors().show(id);
             return executeAndRecordOpenstackRequest(request, false);
         } catch (MsoException e) {
@@ -133,7 +119,7 @@ public class NovaClientImpl extends MsoCommonUtils {
     public HostAggregates queryHostAggregates(String cloudSiteId, String tenantId, int limit, String marker)
             throws MsoCloudSiteNotFound, NovaClientException {
         try {
-            Nova novaClient = getNovaClient(cloudSiteId, tenantId);
+            Nova novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<HostAggregates> request =
                     novaClient.aggregates().list().queryParam("limit", limit).queryParam("marker", marker);
             return executeAndRecordOpenstackRequest(request, false);
@@ -158,7 +144,7 @@ public class NovaClientImpl extends MsoCommonUtils {
     public HostAggregate queryHostAggregateById(String cloudSiteId, String tenantId, String id)
             throws MsoCloudSiteNotFound, NovaClientException {
         try {
-            Nova novaClient = getNovaClient(cloudSiteId, tenantId);
+            Nova novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<HostAggregate> request = novaClient.aggregates().showAggregate(id);
             return executeAndRecordOpenstackRequest(request, false);
         } catch (MsoException e) {
@@ -182,7 +168,7 @@ public class NovaClientImpl extends MsoCommonUtils {
     public QuotaSet queryOSQuotaSet(String cloudSiteId, String tenantId)
             throws MsoCloudSiteNotFound, NovaClientException {
         try {
-            Nova novaClient = getNovaClient(cloudSiteId, tenantId);
+            Nova novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<QuotaSet> request = novaClient.quotaSets().showQuota(tenantId);
             return executeAndRecordOpenstackRequest(request, false);
         } catch (MsoException e) {
@@ -204,7 +190,7 @@ public class NovaClientImpl extends MsoCommonUtils {
     public void deleteKeyPair(String cloudSiteId, String tenantId, String keyPairName)
             throws MsoCloudSiteNotFound, NovaClientException {
         try {
-            Nova novaClient = getNovaClient(cloudSiteId, tenantId);
+            Nova novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<Void> request = novaClient.keyPairs().delete(keyPairName);
             executeAndRecordOpenstackRequest(request, false);
         } catch (MsoException e) {
@@ -215,7 +201,7 @@ public class NovaClientImpl extends MsoCommonUtils {
 
     public Server queryServerById(String cloudSiteId, String tenantId, String id) throws NovaClientException {
         try {
-            Nova novaClient = getNovaClient(cloudSiteId, tenantId);
+            Nova novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<Server> request = novaClient.servers().show(id);
             return executeAndRecordOpenstackRequest(request, false);
         } catch (MsoException e) {
@@ -230,7 +216,7 @@ public class NovaClientImpl extends MsoCommonUtils {
         JsonNode actualObj = mapper.readTree(request);
         Entity<JsonNode> openstackEntity = new Entity<>(actualObj, "application/json");
         CharSequence actionPath = "/servers/" + id + "/action";
-        Nova novaClient = getNovaClient(cloudSiteId, tenantId);
+        Nova novaClient = client.getNovaClient(cloudSiteId, tenantId);
         OpenStackRequest<Void> OSRequest =
                 new OpenStackRequest<>(novaClient, HttpMethod.POST, actionPath, openstackEntity, Void.class);
         executeAndRecordOpenstackRequest(OSRequest, false);
@@ -240,7 +226,7 @@ public class NovaClientImpl extends MsoCommonUtils {
             throws NovaClientException {
         Nova novaClient;
         try {
-            novaClient = getNovaClient(cloudSiteId, tenantId);
+            novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<Void> request = novaClient.servers().attachVolume(serverId, volumeAttachment.getVolumeId(),
                     volumeAttachment.getDevice());
             executeAndRecordOpenstackRequest(request, false);
@@ -254,7 +240,7 @@ public class NovaClientImpl extends MsoCommonUtils {
             throws NovaClientException {
         Nova novaClient;
         try {
-            novaClient = getNovaClient(cloudSiteId, tenantId);
+            novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<Void> request = novaClient.servers().detachVolume(serverId, volumeId);
             executeAndRecordOpenstackRequest(request, false);
         } catch (MsoException e) {
@@ -266,7 +252,7 @@ public class NovaClientImpl extends MsoCommonUtils {
     public Hypervisors getHypervisorDetails(String cloudSiteId, String tenantId) throws NovaClientException {
         Nova novaClient;
         try {
-            novaClient = getNovaClient(cloudSiteId, tenantId);
+            novaClient = client.getNovaClient(cloudSiteId, tenantId);
             OpenStackRequest<Hypervisors> request = novaClient.hypervisors().listDetail();
             return executeAndRecordOpenstackRequest(request, false);
         } catch (MsoException e) {