+/*-
+ * ========================LICENSE_START=================================
+ * O-RAN-SC
+ * %%
+ * Copyright (C) 2019 AT&T Intellectual Property
+ * %%
+ * 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.oransc.ric.portal.dashboard.config;
+
+import java.lang.invoke.MethodHandles;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.oransc.ric.portal.dashboard.k8sapi.SimpleKubernetesClient;
+import org.oransc.ric.portal.dashboard.model.RicInstance;
+import org.oransc.ric.portal.dashboard.model.RicRegionList;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.web.util.DefaultUriBuilderFactory;
+
+/**
+ * Creates, caches and serves out instances of SimpleKubernetesClient for a
+ * given instance. That class seems to be thread safe.
+ */
+public class SimpleKubernetesClientBuilder {
+
+ private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
+ private Map<String, SimpleKubernetesClient> cache = new ConcurrentHashMap<>();
+
+ private final String urlSuffix;
+ private final RicRegionList instanceConfig;
+
+ public SimpleKubernetesClientBuilder(final RicRegionList instanceConfig, final String urlSuffix) {
+ logger.debug("ctor: suffix {}", urlSuffix);
+ this.instanceConfig = instanceConfig;
+ this.urlSuffix = urlSuffix;
+ }
+
+ public SimpleKubernetesClient getSimpleKubernetesClient(String instanceKey) {
+ logger.debug("getSimpleKubernetesClient instance {}", instanceKey);
+ if (cache.containsKey(instanceKey))
+ return cache.get(instanceKey);
+ RicInstance instance = instanceConfig.getInstance(instanceKey);
+ String url = new DefaultUriBuilderFactory(instance.getCaasUrlPrefix().trim()).builder()
+ .path(this.urlSuffix.trim()).build().normalize().toString();
+ SimpleKubernetesClient client = new SimpleKubernetesClient(url);
+ cache.put(instanceKey, client);
+ return client;
+ }
+
+}