1 files changed, 92 insertions, 0 deletions
diff --git a/app/src/main/java/org/onap/portal/history/logging/WebExchangeUtils.java b/app/src/main/java/org/onap/portal/history/logging/WebExchangeUtils.java
new file mode 100644
index 0000000..8efda9c
--- /dev/null
+++ b/app/src/main/java/org/onap/portal/history/logging/WebExchangeUtils.java
@@ -0,0 +1,92 @@
+/*
+ *
+ * Copyright (c) 2023. Deutsche Telekom AG
+ *
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ *
+ */
+
+package org.onap.portal.history.logging;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import org.springframework.util.AntPathMatcher;
+import org.springframework.util.PathMatcher;
+import org.springframework.web.server.ServerWebExchange;
+
+import java.util.EnumMap;
+import java.util.List;
+import java.util.Map;
+
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+public class WebExchangeUtils {
+  private static final String DEFAULT_TRACE_ID = "REQUEST_ID_IS_NOT_SET";
+  private static final String DEFAULT_REQUEST_URL = "REQUEST_URL_IS_ABSENT";
+  private static final String DEFAULT_REQUEST_METHOD = "HTTP_METHOD_IS_ABSENT";
+
+  private static final PathMatcher pathMatcher = new AntPathMatcher();
+
+  public static String getRequestId(ServerWebExchange webExchange, String traceIdHeaderName) {
+    if (webExchange == null || traceIdHeaderName == null) {
+      return DEFAULT_TRACE_ID;
+    }
+
+    var requestIdHeaders = webExchange.getRequest().getHeaders().get(traceIdHeaderName);
+    if (requestIdHeaders != null) {
+      return requestIdHeaders.stream().findAny().orElse(DEFAULT_TRACE_ID);
+    } else {
+      return DEFAULT_TRACE_ID;
+    }
+  }
+
+  public static String getRequestUrl(ServerWebExchange webExchange) {
+    if (webExchange == null) {
+      return DEFAULT_REQUEST_URL;
+    }
+    return webExchange.getRequest().getURI().toString();
+  }
+
+  public static String getRequestHttpMethod(ServerWebExchange webExchange) {
+    if (webExchange == null) {
+      return DEFAULT_REQUEST_METHOD;
+    }
+    return webExchange.getRequest().getMethod().name();
+  }
+
+  public static boolean matchUrlPatternToPath(String pattern, String path) {
+    return pathMatcher.match(pattern, path);
+  }
+
+  public static boolean matchUrlsPatternsToPath(List<String> patterns, String path) {
+    return patterns != null
+        && patterns.stream().anyMatch(pathPattern -> matchUrlPatternToPath(pathPattern, path));
+  }
+
+  public static Map<LogContextVariable, String> getRequestMetadata(
+      ServerWebExchange exchange, String traceIdHeaderName) {
+    var traceId = WebExchangeUtils.getRequestId(exchange, traceIdHeaderName);
+    var requestMethod = WebExchangeUtils.getRequestHttpMethod(exchange);
+    var requestUrl = WebExchangeUtils.getRequestUrl(exchange);
+
+    var logMessageMetadata = new EnumMap<LogContextVariable, String>(LogContextVariable.class);
+    logMessageMetadata.put(LogContextVariable.TRACE_ID, traceId);
+    logMessageMetadata.put(LogContextVariable.STATUS, StatusCode.REQUEST.name());
+    logMessageMetadata.put(LogContextVariable.NORTHBOUND_METHOD, requestMethod);
+    logMessageMetadata.put(LogContextVariable.NORTHBOUND_URL, requestUrl);
+
+    return logMessageMetadata;
+  }
+}