fetching configuration from CBS at application bootstrap

Change-Id: Ibaa56c38b87fc8b8cfa858f74b7bc201bd507b37
Issue-ID: DCAEGEN2-1544
Signed-off-by: grabinsk <maciej.grabinski@nokia.com>

1 files changed, 46 insertions, 0 deletions

diff --git a/prh-app-server/src/main/java/org/onap/dcaegen2/services/bootstrap/CbsClientConfigurationResolver.java b/prh-app-server/src/main/java/org/onap/dcaegen2/services/bootstrap/CbsClientConfigurationResolver.java
new file mode 100644
index 00000000..41389980
--- /dev/null
+++ b/prh-app-server/src/main/java/org/onap/dcaegen2/services/bootstrap/CbsClientConfigurationResolver.java
@@ -0,0 +1,46 @@
+/*
+ * ============LICENSE_START=======================================================
+ * PNF-REGISTRATION-HANDLER
+ * ================================================================================
+ * Copyright (C) 2019 NOKIA 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.dcaegen2.services.bootstrap;
+
+import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.CbsClientConfiguration;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+class CbsClientConfigurationResolver {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(CbsClientConfigurationResolver.class);
+    private final CbsProperties cbsProperties;
+
+    CbsClientConfigurationResolver(CbsProperties cbsProperties) {
+        this.cbsProperties = cbsProperties;
+    }
+
+    CbsClientConfiguration resolveCbsClientConfiguration() {
+        try {
+            return CbsClientConfiguration.fromEnvironment();
+        } catch (Exception e) {
+            LOGGER.warn("Failed resolving CBS client configuration from system environments: " + e);
+        }
+        LOGGER.info("Falling back to use default CBS client configuration properties");
+        return cbsProperties.toCbsClientConfiguration();
+    }
+
+}