1 files changed, 86 insertions, 0 deletions
diff --git a/src/main/java/org/onap/avcnmanager/message/forwarders/RestForwarder.java b/src/main/java/org/onap/avcnmanager/message/forwarders/RestForwarder.java
new file mode 100644
index 0000000..6f1e6a8
--- /dev/null
+++ b/src/main/java/org/onap/avcnmanager/message/forwarders/RestForwarder.java
@@ -0,0 +1,86 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * Simulator
+ * ================================================================================
+ * Copyright (C) 2021 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.avcnmanager.message.forwarders;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.onap.avcnmanager.message.processing.ParsingResult;
+import org.onap.avcnmanager.utils.JsonUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.stereotype.Component;
+import org.springframework.web.client.RestTemplate;
+
+@Component
+public class RestForwarder implements Forwarder {
+    private static final Logger LOGGER = LoggerFactory.getLogger(RestForwarder.class);
+    private static final String PNF_PAYLOAD_TEMPLATE = "pnfsim_payload_notification.json";
+    private final String pnfSimulatorEndpoint;
+    private final RestTemplate restTemplate;
+    private final String vesEndpoint;
+    private final HttpHeaders headers;
+    private final JsonNode pnfSimJson;
+    private final JsonUtils jsonUtils;
+
+    public RestForwarder(@Value("${rest.client.pnfsimulator.endpoint}") String pnfSimulatorEndpoint,
+                         @Value("${rest.client.ves.endpoint}") String vesEndpoint,
+                         RestTemplate restTemplate,
+                         JsonUtils jsonUtils) {
+        this.pnfSimulatorEndpoint = pnfSimulatorEndpoint;
+        this.restTemplate = restTemplate;
+        this.vesEndpoint = vesEndpoint;
+        this.jsonUtils = jsonUtils;
+        this.headers = new HttpHeaders();
+        this.pnfSimJson = jsonUtils.jsonNodeFromResourceFile(PNF_PAYLOAD_TEMPLATE);
+        headers.setContentType(MediaType.APPLICATION_JSON);
+    }
+
+    @Override
+    public void send(ParsingResult message) {
+        String resultAsJson = jsonUtils.convertToJsonString(message);
+        JsonNode node = jsonUtils.convertToJsonNode(resultAsJson);
+        String payload = fillSimulatorRequest(node);
+        LOGGER.info("Will send payload: " + payload);
+        sendPayload(payload);
+    }
+
+
+    private String fillSimulatorRequest(JsonNode node) {
+        ObjectNode root = pnfSimJson.deepCopy();
+        ((ObjectNode)root.get("simulatorParams")).put("vesServerUrl", vesEndpoint);
+        root.set("variables", node);
+        return root.toString();
+    }
+
+    private void sendPayload(String payload) {
+        try {
+            HttpEntity<String> requestEntity = new HttpEntity<>(payload, headers);
+            restTemplate.postForObject(pnfSimulatorEndpoint, requestEntity, String.class);
+        } catch (Throwable e) {
+            LOGGER.error("Exception occurred: " + e.getMessage() + ", while sending: " + payload + ", the payload is skipped");
+            LOGGER.debug("Exception details: ", e);
+        }
+    }
+}