Expose RequestLog's LogInfo objects.

-- Some customers want to be able to customize how the RequestLog is
logged. By exposing the LogInfo objects and the durations, we
effectively give customers full control over how they want to log
each component of the RequestLog.

fili-core/src/main/java/com/yahoo/bard/webservice/logging/RequestLog.java

@@ -350,6 +350,21 @@ public static LogInfo retrieve(Class cls) {
         return logInfo;
     }
 
+    /**
+     * Returns a map of all the LogInfo blocks currently registered with this thread's RequestLog.
+     *
+     * @return A map of all the LogInfo objects registered to this thread's RequestLog
+     */
+    public static Map<String, LogInfo> retrieveAll() {
+        RequestLog requestLog = RLOG.get();
+        if (requestLog == null) {
+            String message = String.format("Attempted to retrieve log info while request log object was uninitialized");
+            LOG.error(message);
+            throw new IllegalStateException(message);
+        }
+        return requestLog.info.any();
+    }
+
     /**
      * Write the request log object of the current thread as JSON.
      * The thread's request log is cleared after a call to this method.