[#9623] Remove private pinpoint error data on PinpointErrorAttributes

Author: ga-ram

web/src/main/java/com/navercorp/pinpoint/web/view/error/PinpointErrorAttributes.java

@@ -4,31 +4,20 @@
 import org.springframework.boot.web.servlet.error.DefaultErrorAttributes;
 import org.springframework.stereotype.Component;
 import org.springframework.web.context.request.WebRequest;
-import org.springframework.web.servlet.ModelAndView;
-
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
 import java.util.Map;
 
 @Component
 public class PinpointErrorAttributes extends DefaultErrorAttributes {
 
-    private PinpointErrorData pinpointErrorData;
-
-    @Override
-    public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
-        this.pinpointErrorData = new PinpointErrorData(request);
-        return super.resolveException(request, response, handler, ex);
-    }
-
     @Override
     public Map<String, Object> getErrorAttributes(WebRequest webRequest, ErrorAttributeOptions options) {
         Map<String, Object> errorAttributes = super.getErrorAttributes(webRequest, options);
-        this.addCustomData(errorAttributes);
+        this.addCustomData(webRequest, errorAttributes);
         return errorAttributes;
     }
 
-    private void addCustomData(Map<String, Object> errorAttributes) {
+    private void addCustomData(WebRequest webRequest, Map<String, Object> errorAttributes) {
+        PinpointErrorData pinpointErrorData = new PinpointErrorData(webRequest);
         errorAttributes.put("data", pinpointErrorData);
     }
 }

web/src/main/java/com/navercorp/pinpoint/web/view/error/PinpointErrorData.java

@@ -1,20 +1,17 @@
 package com.navercorp.pinpoint.web.view.error;
 
 import com.fasterxml.jackson.annotation.JsonInclude;
+import org.springframework.web.context.request.ServletWebRequest;
+import org.springframework.web.context.request.WebRequest;
 
 import javax.servlet.http.HttpServletRequest;
-import java.util.List;
-import java.util.ArrayList;
-import java.util.Map;
-import java.util.HashMap;
-import java.util.Enumeration;
-import java.util.Collections;
+import java.util.*;
 
 @JsonInclude(JsonInclude.Include.NON_NULL)
 public class PinpointErrorData {
     private final RequestInfo requestInfo;
 
-    public PinpointErrorData(HttpServletRequest request) {
+    public PinpointErrorData(WebRequest request) {
         this.requestInfo = new RequestInfo(request);
     }
 
@@ -26,14 +23,22 @@ public static class RequestInfo {
         private static final String UNKNOWN = "UNKNOWN";
         private final String method;
         private final String url;
-        private final Map<String, List<String>> headers;
-        private final Map<String, String[]> parameters;
-
-        public RequestInfo(HttpServletRequest request) {
-            this.method = request.getMethod();
-            this.url = getRequestUrl(request);
-            this.headers = getRequestHeaders(request);
-            this.parameters = request.getParameterMap();;
+        private  Map<String, List<String>> headers;
+        private  Map<String, String[]> parameters;
+
+        public RequestInfo(WebRequest request) {
+            if (request instanceof ServletWebRequest) {
+                ServletWebRequest webRequest = (ServletWebRequest) request;
+                this.method = webRequest.getRequest().getMethod();
+                this.url = String.valueOf(webRequest.getRequest().getRequestURL());
+                this.headers = getRequestHeader(webRequest);
+                this.parameters = request.getParameterMap();
+            } else {
+                this.method = "UNKNOWN";
+                this.url = "UNKNOWN";
+                this.headers = null;
+                this.parameters = null;
+            }
         }
 
         public String getMethod() {
@@ -52,49 +57,23 @@ public Map<String, String[]> getParameters() {
             return parameters;
         }
 
-        private String getRequestUrl(HttpServletRequest request) {
-            if (request.getRequestURL() == null) {
-                return UNKNOWN;
-            }
-            return request.getRequestURL().toString();
-        }
-
-        private Map<String, List<String>> getRequestHeaders(HttpServletRequest request) {
-            Enumeration<String> keys = request.getHeaderNames();
+        private Map<String, List<String>> getRequestHeader(ServletWebRequest webRequest) {
+            Iterator<String> keys = webRequest.getHeaderNames();
             if (keys == null) {
                 return Collections.emptyMap();
             }
 
             Map<String, List<String>> result = new HashMap<>();
-            while (keys.hasMoreElements()) {
-                String key = keys.nextElement();
+            while(keys.hasNext()) {
+                String key = keys.next();
                 if (key == null) {
                     continue;
                 }
-
-                result.put(key, getRequestHeaderValueList(request, key));
+                result.put(key, List.of(webRequest.getHeaderValues(key)));
             }
 
             return result;
-        }
-
-        private List<String> getRequestHeaderValueList(HttpServletRequest request, String key) {
-            Enumeration<String> headerValues = request.getHeaders(key);
-            if (headerValues == null) {
-                return Collections.emptyList();
-            }
-
-            List<String> headerValueList = new ArrayList<>();
-            while (headerValues.hasMoreElements()) {
-                String headerValue = headerValues.nextElement();
-                if (headerValue == null) {
-                    headerValueList.add("null");
-                } else {
-                    headerValueList.add(headerValue);
-                }
-            }
 
-            return headerValueList;
         }
 
         @Override