Fix sonar issues

The Cyclomatic Complexity of this method is greater than 10 authorized
Remove unused fields

Issue-ID: SO-1841
Change-Id: I792e02a3843623b1a93d5a272946ad79a07373f8
Signed-off-by: Parshad Patel <pars.patel@samsung.com>

3 files changed, 107 insertions, 97 deletions

diff --git a/adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/sdncrest/SDNCConnector.java b/adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/sdncrest/SDNCConnector.java
index 431e9db87b..ea24a0ce3e 100644
--- a/adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/sdncrest/SDNCConnector.java
+++ b/adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/sdncrest/SDNCConnector.java
@@ -11,9 +11,9 @@
  * 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.
@@ -27,6 +27,8 @@ package org.onap.so.adapters.sdnc.sdncrest;
 import java.io.StringReader;
 import java.net.HttpURLConnection;
 import java.net.SocketTimeoutException;
+import java.util.Arrays;
+import java.util.List;
 import javax.xml.XMLConstants;
 import javax.xml.bind.DatatypeConverter;
 import javax.xml.parsers.DocumentBuilderFactory;
@@ -71,7 +73,6 @@ import org.springframework.core.env.Environment;
 public abstract class SDNCConnector {
     private static final Logger logger = LoggerFactory.getLogger(SDNCConnector.class);
 
-    private static final String MSO_INTERNAL_ERROR = "MsoInternalError";
     private static final String XPATH_EXCEPTION = "XPath Exception";
     @Autowired
     private Environment env;
@@ -84,32 +85,10 @@ public abstract class SDNCConnector {
         HttpResponse httpResponse = null;
 
         try {
-            int timeout = Integer.parseInt(rt.getTimeout());
-
-            RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(timeout).setConnectTimeout(timeout)
-                    .setConnectionRequestTimeout(timeout).build();
 
             HttpClient client = HttpClientBuilder.create().build();
 
-            if ("POST".equals(rt.getReqMethod())) {
-                HttpPost httpPost = new HttpPost(rt.getSdncUrl());
-                httpPost.setConfig(requestConfig);
-                httpPost.setEntity(new StringEntity(content, ContentType.APPLICATION_XML));
-                method = httpPost;
-            } else if ("PUT".equals(rt.getReqMethod())) {
-                HttpPut httpPut = new HttpPut(rt.getSdncUrl());
-                httpPut.setConfig(requestConfig);
-                httpPut.setEntity(new StringEntity(content, ContentType.APPLICATION_XML));
-                method = httpPut;
-            } else if ("GET".equals(rt.getReqMethod())) {
-                HttpGet httpGet = new HttpGet(rt.getSdncUrl());
-                httpGet.setConfig(requestConfig);
-                method = httpGet;
-            } else if ("DELETE".equals(rt.getReqMethod())) {
-                HttpDelete httpDelete = new HttpDelete(rt.getSdncUrl());
-                httpDelete.setConfig(requestConfig);
-                method = httpDelete;
-            }
+            method = getHttpRequestMethod(content, rt);
 
 
             String userCredentials = CryptoUtils.decrypt(env.getProperty(Constants.SDNC_AUTH_PROP),
@@ -122,8 +101,6 @@ public abstract class SDNCConnector {
                 logger.debug("method is NULL:");
             }
 
-
-
             httpResponse = client.execute(method);
 
             String responseContent = null;
@@ -141,7 +118,7 @@ public abstract class SDNCConnector {
                 String errMsg = "SDNC returned " + statusCode + " " + statusMessage;
 
                 String errors = analyzeErrors(responseContent);
-                if (errors != null) {
+                if (errors != null && !errors.isEmpty()) {
                     errMsg += " " + errors;
                 }
 
@@ -192,6 +169,36 @@ public abstract class SDNCConnector {
         }
     }
 
+    private HttpRequestBase getHttpRequestMethod(String content, TypedRequestTunables rt) {
+
+        int timeout = Integer.parseInt(rt.getTimeout());
+        HttpRequestBase method = null;
+
+        RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(timeout).setConnectTimeout(timeout)
+                .setConnectionRequestTimeout(timeout).build();
+
+        if ("POST".equals(rt.getReqMethod())) {
+            HttpPost httpPost = new HttpPost(rt.getSdncUrl());
+            httpPost.setConfig(requestConfig);
+            httpPost.setEntity(new StringEntity(content, ContentType.APPLICATION_XML));
+            method = httpPost;
+        } else if ("PUT".equals(rt.getReqMethod())) {
+            HttpPut httpPut = new HttpPut(rt.getSdncUrl());
+            httpPut.setConfig(requestConfig);
+            httpPut.setEntity(new StringEntity(content, ContentType.APPLICATION_XML));
+            method = httpPut;
+        } else if ("GET".equals(rt.getReqMethod())) {
+            HttpGet httpGet = new HttpGet(rt.getSdncUrl());
+            httpGet.setConfig(requestConfig);
+            method = httpGet;
+        } else if ("DELETE".equals(rt.getReqMethod())) {
+            HttpDelete httpDelete = new HttpDelete(rt.getSdncUrl());
+            httpDelete.setConfig(requestConfig);
+            method = httpDelete;
+        }
+        return method;
+    }
+
     protected void logError(String errMsg) {
         logger.error(LoggingAnchor.FOUR, MessageEnum.RA_EXCEPTION_COMMUNICATE_SDNC.toString(), "SDNC",
                 ErrorCode.AvailabilityError.getValue(), errMsg);
@@ -205,7 +212,7 @@ public abstract class SDNCConnector {
     /**
      * Generates a response object from content received from SDNC. The response object may be a success response object
      * or an error response object. This method must be overridden by the subclass to return the correct object type.
-     * 
+     *
      * @param statusCode the response status code from SDNC (e.g. 200)
      * @param statusMessage the response status message from SDNC (e.g. "OK")
      * @param responseContent the body of the response from SDNC (possibly null)
@@ -218,7 +225,7 @@ public abstract class SDNCConnector {
     /**
      * Generates an error response object. This method must be overridden by the subclass to return the correct object
      * type.
-     * 
+     *
      * @param statusCode the response status code (from SDNC, or internally generated)
      * @param errMsg the error message (normally a verbose explanation of the error)
      * @param rt request tunables
@@ -229,17 +236,17 @@ public abstract class SDNCConnector {
     /**
      * Called by the send() method to analyze errors that may be encoded in the content of non-2XX responses. By
      * default, this method tries to parse the content as a restconf error.
-     * 
+     *
      * <pre>
      * xmlns = "urn:ietf:params:xml:ns:yang:ietf-restconf"
      * </pre>
-     * 
+     *
      * If an error (or errors) can be obtained from the content, then the result is a string in this format:
-     * 
+     *
      * <pre>
      * [error-type:TYPE, error-tag:TAG, error-message:MESSAGE] ...
      * </pre>
-     * 
+     *
      * If no error could be obtained from the content, then the result is null.
      * <p>
      * The subclass can override this method to provide another implementation.
@@ -262,7 +269,7 @@ public abstract class SDNCConnector {
         // </error>
         // </errors>
 
-        StringBuilder output = null;
+        String output = null;
 
         try {
             XPathFactory xpathFactory = XPathFactory.newInstance();
@@ -274,55 +281,47 @@ public abstract class SDNCConnector {
             InputSource source = new InputSource(new StringReader(content));
             Document doc = documentBuilderFactory.newDocumentBuilder().parse(source);
             NodeList errors = (NodeList) xpath.evaluate("errors/error", doc, XPathConstants.NODESET);
+            StringBuilder errorDetails = getErrorDetails(xpath, errors);
+            if (errorDetails != null) {
+                output = errorDetails.toString();
+            }
+        } catch (Exception e) {
+            logger.error(LoggingAnchor.FOUR, MessageEnum.RA_ANALYZE_ERROR_EXC.toString(), "SDNC",
+                    ErrorCode.DataError.getValue(), "Exception while analyzing errors", e);
+        }
 
-            for (int i = 0; i < errors.getLength(); i++) {
-                Element error = (Element) errors.item(i);
+        return output;
+    }
 
-                String info = "";
+    private StringBuilder getErrorDetails(XPath xpath, NodeList errors) {
 
-                try {
-                    String errorType = xpath.evaluate("error-type", error);
-                    info += "error-type:" + errorType;
-                } catch (XPathExpressionException e) {
-                    logger.error(LoggingAnchor.SIX, MessageEnum.RA_EVALUATE_XPATH_ERROR.toString(), "error-type",
-                            error.toString(), "SDNC", ErrorCode.DataError.getValue(), XPATH_EXCEPTION, e);
-                }
+        StringBuilder output = null;
 
-                try {
-                    String errorTag = xpath.evaluate("error-tag", error);
-                    if (!info.isEmpty()) {
-                        info += ", ";
-                    }
-                    info += "error-tag:" + errorTag;
-                } catch (XPathExpressionException e) {
-                    logger.error(LoggingAnchor.SIX, MessageEnum.RA_EVALUATE_XPATH_ERROR.toString(), "error-tag",
-                            error.toString(), "SDNC", ErrorCode.DataError.getValue(), XPATH_EXCEPTION, e);
-                }
+        for (int i = 0; i < errors.getLength(); i++) {
+            Element error = (Element) errors.item(i);
+
+            StringBuilder info = new StringBuilder();
 
+            List<String> errorAttributesList = Arrays.asList("error-type", "error-tag", "error-message");
+
+            for (String errorAttrib : errorAttributesList) {
                 try {
-                    String errorMessage = xpath.evaluate("error-message", error);
-                    if (!info.isEmpty()) {
-                        info += ", ";
-                    }
-                    info += "error-message:" + errorMessage;
-                } catch (Exception e) {
-                    logger.error(LoggingAnchor.SIX, MessageEnum.RA_EVALUATE_XPATH_ERROR.toString(), "error-message",
+                    String errorAttribValue = xpath.evaluate(errorAttrib, error);
+                    info.append(errorAttrib).append(":").append(errorAttribValue);
+                } catch (XPathExpressionException e) {
+                    logger.error(LoggingAnchor.SIX, MessageEnum.RA_EVALUATE_XPATH_ERROR.toString(), errorAttrib,
                             error.toString(), "SDNC", ErrorCode.DataError.getValue(), XPATH_EXCEPTION, e);
                 }
+            }
 
-                if (!info.isEmpty()) {
-                    if (output == null) {
-                        output = new StringBuilder("[" + info + "]");
-                    } else {
-                        output.append(" [").append(info).append("]");
-                    }
+            if (!info.toString().isEmpty()) {
+                if (output == null) {
+                    output = new StringBuilder("[" + info + "]");
+                } else {
+                    output.append(" [").append(info).append("]");
                 }
             }
-        } catch (Exception e) {
-            logger.error(LoggingAnchor.FOUR, MessageEnum.RA_ANALYZE_ERROR_EXC.toString(), "SDNC",
-                    ErrorCode.DataError.getValue(), "Exception while analyzing errors", e);
         }
-
-        return output.toString();
+        return output;
     }
 }
diff --git a/adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/sdncrest/SDNCServiceRequestConnector.java b/adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/sdncrest/SDNCServiceRequestConnector.java
index 6f76ea1eab..9dd95c6713 100644
--- a/adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/sdncrest/SDNCServiceRequestConnector.java
+++ b/adapters/mso-sdnc-adapter/src/main/java/org/onap/so/adapters/sdnc/sdncrest/SDNCServiceRequestConnector.java
@@ -11,9 +11,9 @@
  * 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.
@@ -59,9 +59,6 @@ public class SDNCServiceRequestConnector extends SDNCConnector {
             TypedRequestTunables rt) {
         try {
             return parseResponseContent(responseContent);
-        } catch (ParseException e) {
-            logger.error("Error occured:", e);
-            return createErrorResponse(HttpURLConnection.HTTP_INTERNAL_ERROR, e.getMessage(), rt);
         } catch (Exception e) {
             logger.error("Error occured:", e);
             return createErrorResponse(HttpURLConnection.HTTP_INTERNAL_ERROR, e.getMessage(), rt);
@@ -79,10 +76,10 @@ public class SDNCServiceRequestConnector extends SDNCConnector {
      * response code contained in the content. For 2XX response codes, an SDNCServiceResponse is returned. Otherwise, an
      * SDNCServiceError is returned. If the content cannot be parsed, or if the content does not contain all required
      * elements, a parse exception is thrown. This method performs no logging or alarming.
-     * 
+     *
      * @throws ParseException on error
      */
-    public static SDNCResponseCommon parseResponseContent(String responseContent)
+    public SDNCResponseCommon parseResponseContent(String responseContent)
             throws ParseException, ParserConfigurationException, SAXException, IOException {
 
         // Note: this document builder is not namespace-aware, so namespaces are ignored.
@@ -119,16 +116,24 @@ public class SDNCServiceRequestConnector extends SDNCConnector {
         List<Element> responseParameters = new ArrayList<>();
 
         for (Element child : SDNCAdapterUtils.childElements(configurationResponseCommon)) {
-            if ("response-code".equals(child.getNodeName())) {
-                responseCode = child.getTextContent();
-            } else if ("response-message".equals(child.getNodeName())) {
-                responseMessage = child.getTextContent();
-            } else if ("svc-request-id".equals(child.getNodeName())) {
-                svcRequestId = child.getTextContent();
-            } else if ("ack-final-indicator".equals(child.getNodeName())) {
-                ackFinalIndicator = child.getTextContent();
-            } else if ("response-parameters".equals(child.getNodeName())) {
-                responseParameters.add(child);
+
+            switch (child.getNodeName()) {
+                case "response-code":
+                    responseCode = child.getTextContent();
+                    break;
+                case "response-message":
+                    responseMessage = child.getTextContent();
+                    break;
+                case "svc-request-id":
+                    svcRequestId = child.getTextContent();
+                    break;
+                case "ack-final-indicator":
+                    ackFinalIndicator = child.getTextContent();
+                    break;
+                case "response-parameters":
+                    responseParameters.add(child);
+                    break;
+                default:
             }
         }
 
@@ -167,8 +172,15 @@ public class SDNCServiceRequestConnector extends SDNCConnector {
             return new SDNCServiceError(svcRequestId, responseCode, responseMessage, ackFinalIndicator);
         }
 
-        // Create a success response object.
+        return createSDNCServiceResponse(responseCode, responseMessage, svcRequestId, ackFinalIndicator,
+                responseParameters);
+
+    }
+
+    private SDNCServiceResponse createSDNCServiceResponse(String responseCode, String responseMessage,
+            String svcRequestId, String ackFinalIndicator, List<Element> responseParameters) throws ParseException {
 
+        // Create a success response object.
         SDNCServiceResponse response =
                 new SDNCServiceResponse(svcRequestId, responseCode, responseMessage, ackFinalIndicator);
 
@@ -201,8 +213,6 @@ public class SDNCServiceRequestConnector extends SDNCConnector {
 
             response.addParam(tagName, tagValue);
         }
-
         return response;
-
     }
 }
diff --git a/adapters/mso-sdnc-adapter/src/test/java/org/onap/so/adapters/sdnc/sdncrest/SDNCServiceRequestConnectorTest.java b/adapters/mso-sdnc-adapter/src/test/java/org/onap/so/adapters/sdnc/sdncrest/SDNCServiceRequestConnectorTest.java
index 9911cae677..9adc6c52f5 100644
--- a/adapters/mso-sdnc-adapter/src/test/java/org/onap/so/adapters/sdnc/sdncrest/SDNCServiceRequestConnectorTest.java
+++ b/adapters/mso-sdnc-adapter/src/test/java/org/onap/so/adapters/sdnc/sdncrest/SDNCServiceRequestConnectorTest.java
@@ -7,9 +7,9 @@
  * 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.
@@ -31,7 +31,8 @@ public class SDNCServiceRequestConnectorTest {
     public void parseResponseContentTest() throws Exception {
 
         String content = FileUtil.readResourceFile("SdncServiceResponse.xml");
-        SDNCResponseCommon responseCommon = SDNCServiceRequestConnector.parseResponseContent(content);
+        SDNCServiceRequestConnector sdncServiceRequestConnector = new SDNCServiceRequestConnector();
+        SDNCResponseCommon responseCommon = sdncServiceRequestConnector.parseResponseContent(content);
 
         assertNotNull(responseCommon);
     }