1 files changed, 57 insertions, 0 deletions
diff --git a/rest-services/cbs-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/cbs/client/api/streams/DataStreams.java b/rest-services/cbs-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/cbs/client/api/streams/DataStreams.java
new file mode 100644
index 00000000..4fdb31b1
--- /dev/null
+++ b/rest-services/cbs-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/cbs/client/api/streams/DataStreams.java
@@ -0,0 +1,57 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 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.dcaegen2.services.sdk.rest.services.cbs.client.api.streams;
+
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import io.vavr.collection.Stream;
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.impl.streams.gson.DataStreamUtils;
+import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.streams.DataStreamDirection;
+import org.onap.dcaegen2.services.sdk.rest.services.cbs.client.model.streams.RawDataStream;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+public final class DataStreams {
+
+    private DataStreams() {
+    }
+
+    public static Stream<RawDataStream<JsonObject>> namedSources(JsonObject rootJson) {
+        return createCollectionOfStreams(rootJson, DataStreamDirection.SOURCE);
+    }
+
+    public static Stream<RawDataStream<JsonObject>> namedSinks(JsonObject rootJson) {
+        return createCollectionOfStreams(rootJson, DataStreamDirection.SINK);
+    }
+
+    private static Stream<RawDataStream<JsonObject>> createCollectionOfStreams(JsonObject rootJson, DataStreamDirection direction) {
+        final JsonElement streamsJson = rootJson.get(direction.configurationKey());
+        return streamsJson == null
+                ? Stream.empty()
+                : DataStreamUtils.mapJsonToStreams(streamsJson, direction);
+    }
+
+
+}