1 files changed, 128 insertions, 0 deletions
diff --git a/src/main/java/org/onap/nbi/commons/EWInterfaceUtils.java b/src/main/java/org/onap/nbi/commons/EWInterfaceUtils.java
new file mode 100644
index 0000000..24bf1fc
--- /dev/null
+++ b/src/main/java/org/onap/nbi/commons/EWInterfaceUtils.java
@@ -0,0 +1,128 @@
+/**
+ * Copyright (c) 2019 Vodafone Group
+ *
+ * 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.
+ */
+
+package org.onap.nbi.commons;
+import org.onap.nbi.exceptions.BackendFunctionalException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.*;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.ResourceAccessException;
+import org.springframework.web.client.RestTemplate;
+
+
+@Service
+public class EWInterfaceUtils {
+
+    public static final String RESPONSE_STATUS = "response status : ";
+    public static final String RETURNS = " returns ";
+    public static final String ERROR_ON_CALLING = "error on calling ";
+    private static final Logger LOGGER = LoggerFactory.getLogger( EWInterfaceUtils.class);
+    @Autowired
+    private RestTemplate restTemplate;
+    @Value("${so.host}")
+    private String soHostname;
+
+    @Value("${so.api.id}")
+    private String soApiId;
+
+    @Value("${so.header.authorization}")
+    private String soHeaderAuthorization;
+
+    private static final String HEADER_AUTHORIZATION = "Authorization";
+    private static final String X_FROM_APP_ID = "X-FromAppId";
+
+
+    public ResponseEntity<Object> callPostRequestTarget(Object obj, String targetUrl) {
+
+        try {
+            ResponseEntity<Object> response = restTemplate.exchange(targetUrl, HttpMethod.POST,
+                    new HttpEntity<>(obj, buildRequestHeader()), Object.class);
+
+            logResponseGet(targetUrl, response);
+            if (null == response) {
+                return null;
+            } else {
+                return response;
+            }
+
+        } catch (BackendFunctionalException | ResourceAccessException e) {
+            LOGGER.error(ERROR_ON_CALLING  + " ," + e.getMessage());
+            return new ResponseEntity<>(HttpStatus.INTERNAL_SERVER_ERROR);
+        }
+    }
+
+
+    public ResponseEntity<Object> callGetRequestTarget(String targetUrl) {
+        try {
+            ResponseEntity<Object> response = restTemplate.exchange(targetUrl, HttpMethod.GET,
+                    new HttpEntity<>(buildRequestHeader()), Object.class);
+            LOGGER.info("response status : {}", targetUrl);
+            logResponseGet(targetUrl, response);
+            if (null == response) {
+                return null;
+            } else {
+                return response;
+            }
+
+        } catch (BackendFunctionalException | ResourceAccessException e) {
+            LOGGER.error(ERROR_ON_CALLING + targetUrl + " ," + e);
+            return null;
+        }
+    }
+
+    public ResponseEntity<Object> callDeleteRequestTarget(String targetUrl) {
+        try {
+            ResponseEntity<Object> response = restTemplate.exchange(targetUrl, HttpMethod.DELETE,
+                    new HttpEntity<>(buildRequestHeader()), Object.class);
+            LOGGER.info("response status ewhost : {}", targetUrl);
+
+            if (null == response) {
+                return null;
+            } else {
+                return response;
+            }
+
+        } catch (BackendFunctionalException | ResourceAccessException e) {
+            LOGGER.error(ERROR_ON_CALLING + targetUrl + " ," + e);
+            return null;
+        }
+    }
+    private void logResponseGet(String url, ResponseEntity<Object> response) {
+        if (response != null) {
+            if (LOGGER.isDebugEnabled()) {
+                LOGGER.debug("response body : {}", response.getBody().toString());
+            }
+            if (LOGGER.isWarnEnabled() && !response.getStatusCode().equals( HttpStatus.OK)) {
+                LOGGER.warn("HTTP call EWInterface on {} returns {} , {}", url, response.getStatusCodeValue(),
+                        response.getBody().toString());
+            }
+        } else {
+            LOGGER.info("no response calling url {}", url);
+        }
+    }
+
+    private HttpHeaders buildRequestHeader() {
+        HttpHeaders httpHeaders = new HttpHeaders();
+        httpHeaders.add(HEADER_AUTHORIZATION, soHeaderAuthorization);
+        httpHeaders.add(X_FROM_APP_ID, soApiId);
+        httpHeaders.add("Accept", "application/json");
+        httpHeaders.add("Content-Type", "application/json");
+        return httpHeaders;
+    }
+}