1 files changed, 57 insertions, 0 deletions
diff --git a/src/main/java/org/onap/dcae/configuration/ConfigParsing.java b/src/main/java/org/onap/dcae/configuration/ConfigParsing.java
new file mode 100644
index 00000000..13deff73
--- /dev/null
+++ b/src/main/java/org/onap/dcae/configuration/ConfigParsing.java
@@ -0,0 +1,57 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dcaegen2.collectors.ves
+ * ================================================================================
+ * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright (C) 2020 Nokia. 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.dcae.configuration;
+
+import static io.vavr.API.Try;
+import static io.vavr.API.Tuple;
+import static org.onap.dcae.common.publishing.VavrUtils.f;
+import static org.onap.dcae.configuration.Conversions.toList;
+
+import io.vavr.collection.Map;
+import io.vavr.control.Option;
+import org.json.JSONObject;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+interface ConfigParsing {
+
+    Logger log = LoggerFactory.getLogger(ConfigParsing.class);
+
+    static Option<JSONObject> getDMaaPConfig(JSONObject configuration) {
+        log.info(f("Getting DMaaP configuration from app configuration: '%s'", configuration));
+        return toList(configuration.toMap().entrySet().iterator())
+            .filter(t -> t.getKey().startsWith("streams_publishes"))
+            .headOption()
+            .flatMap(e -> Try(() -> configuration.getJSONObject(e.getKey())).toOption())
+            .onEmpty(() -> log.warn(f("App configuration '%s' is missing DMaaP configuration ('streams_publishes' key) "
+                + "or DMaaP configuration is not a valid json document", configuration)))
+            .peek(dMaaPConf -> log.info(f("Found following DMaaP configuration: '%s'", dMaaPConf)));
+    }
+
+    static Map<String, String> getProperties(JSONObject configuration) {
+        log.info(f("Getting properties configuration from app configuration: '%s'", configuration));
+        Map<String, String> confEntries = toList(configuration.toMap().entrySet().iterator())
+            .toMap(e -> Tuple(e.getKey(), String.valueOf(e.getValue())))
+            .filterKeys(e -> !e.startsWith("streams_publishes"));
+        log.info(f("Found following app properties: '%s'", confEntries));
+        return confEntries;
+    }
+}
+\ No newline at end of file