1 files changed, 84 insertions, 0 deletions
diff --git a/prh-app-server/src/main/java/org/onap/dcaegen2/services/bootstrap/CbsPropertySourceLocator.java b/prh-app-server/src/main/java/org/onap/dcaegen2/services/bootstrap/CbsPropertySourceLocator.java
new file mode 100644
index 00000000..7b660202
--- /dev/null
+++ b/prh-app-server/src/main/java/org/onap/dcaegen2/services/bootstrap/CbsPropertySourceLocator.java
@@ -0,0 +1,84 @@
+/*
+ * ============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 com.google.gson.JsonObject;
+import org.onap.dcaegen2.services.prh.configuration.CbsConfiguration;
+import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.api.CbsRequests;
+import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.CbsClientConfiguration;
+import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.cloud.bootstrap.config.PropertySourceLocator;
+import org.springframework.core.env.Environment;
+import org.springframework.core.env.MapPropertySource;
+import org.springframework.core.env.PropertySource;
+
+import java.util.Map;
+
+public class CbsPropertySourceLocator implements PropertySourceLocator {
+    private static final Logger LOGGER = LoggerFactory.getLogger(CbsPropertySourceLocator.class);
+
+    private final CbsProperties cbsProperties;
+    private final CbsJsonToPropertyMapConverter cbsJsonToPropertyMapConverter;
+    private final CbsClientConfigurationResolver cbsClientConfigurationResolver;
+    private final CbsClientFactoryFacade cbsClientFactoryFacade;
+    private final CbsConfiguration cbsConfiguration;
+
+    public CbsPropertySourceLocator(CbsProperties cbsProperties,
+                                    CbsJsonToPropertyMapConverter cbsJsonToPropertyMapConverter,
+                                    CbsClientConfigurationResolver cbsClientConfigurationResolver,
+                                    CbsClientFactoryFacade cbsClientFactoryFacade,
+                                    CbsConfiguration cbsConfiguration) {
+        this.cbsProperties = cbsProperties;
+        this.cbsJsonToPropertyMapConverter = cbsJsonToPropertyMapConverter;
+        this.cbsClientConfigurationResolver = cbsClientConfigurationResolver;
+        this.cbsClientFactoryFacade = cbsClientFactoryFacade;
+        this.cbsConfiguration = cbsConfiguration;
+    }
+
+    @Override
+    public PropertySource<?> locate(Environment environment) {
+        CbsClientConfiguration cbsClientConfiguration = cbsClientConfigurationResolver.resolveCbsClientConfiguration();
+        LOGGER.info("Fetching configuration from Config Binding Service @ {}:{} for {}",
+                cbsClientConfiguration.hostname(), cbsClientConfiguration.port(), cbsClientConfiguration.appName());
+        Map<String, Object> properties = cbsClientFactoryFacade.createCbsClient(cbsClientConfiguration)
+                .flatMap(cbsClient -> cbsClient.get(CbsRequests.getAll(RequestDiagnosticContext.create())))
+                .doOnError(e -> LOGGER.warn("Failed fetching config properties from CBS - retrying...", e))
+                .retryBackoff(cbsProperties.getFetchRetries().getMaxAttempts(),
+                        cbsProperties.getFetchRetries().getFirstBackoff(),
+                        cbsProperties.getFetchRetries().getMaxBackoff())
+                .doOnNext(this::updateCbsConfig)
+                .map(cbsJsonToPropertyMapConverter::convertToMap)
+                .block();
+        return new MapPropertySource("cbs", properties);
+    }
+
+    private void updateCbsConfig(JsonObject jsonObject) {
+        try {
+            cbsConfiguration.parseCBSConfig(jsonObject);
+        } catch (Exception e) {
+            LOGGER.error("Failed parsing configuration from CBS", e);
+            throw e;
+        }
+    }
+
+}