1 files changed, 53 insertions, 0 deletions
diff --git a/bpmn/MSOCommonBPMN/src/main/java/org/onap/so/client/cds/ExtractServiceFromUserParameters.java b/bpmn/MSOCommonBPMN/src/main/java/org/onap/so/client/cds/ExtractServiceFromUserParameters.java
new file mode 100644
index 0000000000..43fabd3253
--- /dev/null
+++ b/bpmn/MSOCommonBPMN/src/main/java/org/onap/so/client/cds/ExtractServiceFromUserParameters.java
@@ -0,0 +1,53 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * ONAP - SO
+ * ================================================================================
+ * Copyright (C) 2019 Bell Canada
+ * ================================================================================
+ * 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.so.client.cds;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.onap.so.client.exception.PayloadGenerationException;
+import org.onap.so.serviceinstancebeans.Service;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+import java.util.List;
+import java.util.Map;
+
+@Component
+public class ExtractServiceFromUserParameters {
+
+    private static final String SERVICE_KEY = "service";
+
+    @Autowired
+    private ObjectMapper objectMapper;
+
+    public Service getServiceFromRequestUserParams(List<Map<String, Object>> userParams) throws Exception {
+        Map<String, Object> serviceMap = userParams.stream().filter(key -> key.containsKey(SERVICE_KEY)).findFirst()
+                .orElseThrow(() -> new Exception("Can not find service in userParams section in generalBuildingBlock"));
+        return getServiceObjectFromServiceMap(serviceMap);
+    }
+
+    private Service getServiceObjectFromServiceMap(Map<String, Object> serviceMap) throws PayloadGenerationException {
+        try {
+            String serviceFromJson = objectMapper.writeValueAsString(serviceMap.get(SERVICE_KEY));
+            return objectMapper.readValue(serviceFromJson, Service.class);
+        } catch (Exception e) {
+            throw new PayloadGenerationException("An exception occurred while converting json object to Service object",
+                    e);
+        }
+    }
+}