server/util/VizCache.cs

@@ -0,0 +1,68 @@
+using System;
+using System.Collections.Generic;
+
+namespace Sockeye.Util
+{
+    //Viz cache - used by biz objects during get report data to temporarily cache values from database for single request
+    //saves db calls and formatting
+    internal class VizCache
+    {
+        private Dictionary<string, string> _vizCache = new Dictionary<string, string>();
+        // internal VizCache()
+        // {
+        //     System.Diagnostics.Debug.WriteLine("constructing vizcache");
+        // }
+        internal void Clear()
+        {
+            _vizCache.Clear();
+        }
+        internal void Add(string value, string key, long? id = 0)
+        {
+            if (value == null) value = string.Empty;
+            _vizCache[$"{key}{id}"] = value;
+            // System.Diagnostics.Debug.WriteLine($"ADD {key}{id} - {value}");
+        }
+        internal string Get(string key, long? id = 0)
+        {
+            string value = null;
+            if (_vizCache.TryGetValue($"{key}{id}", out value))
+            {
+                //System.Diagnostics.Debug.WriteLine($"vizGet cache hit {key}{id}");
+                return value;
+            }
+            else
+            {
+                //System.Diagnostics.Debug.WriteLine($"vizGet cache miss {key}{id}");
+                return null;
+            }
+        }
+
+        internal bool Has(string key, long? id = 0)
+        {
+            return _vizCache.ContainsKey($"{key}{id}");
+        }
+
+        internal bool GetAsBool(string key, long? id = 0)
+        {
+            var s = Get(key, id);
+            if (string.IsNullOrWhiteSpace(s)) return false;
+            return bool.Parse(s);
+        }
+
+        internal decimal? GetAsDecimal(string key, long? id = 0)
+        {
+            var s = Get(key, id);
+            if (string.IsNullOrWhiteSpace(s)) return null;
+            return decimal.Parse(s);
+        }
+
+        internal long? GetAsLong(string key, long? id = 0)
+        {
+            var s = Get(key, id);
+            if (string.IsNullOrWhiteSpace(s)) return null;
+            return long.Parse(s);
+        }
+
+    }//eoc
+
+}//eons