calculating and showing the number of files and the average size of a

file in the HTCACHE in ConfigHTCache_p.html

htroot/ConfigHTCache_p.html

@@ -19,7 +19,7 @@
           <dt><label for="HTCachePath">The path where the cache is stored</label></dt>
           <dd><input name="HTCachePath" id="HTCachePath" type="text" size="20" maxlength="300" value="#[HTCachePath]#" /></dd>
           <dt><label for="actualCacheSize">The current size of the cache</label></dt>
-          <dd><span id="actualCacheSize">#[actualCacheSize]# MB</span></dd>
+          <dd><span id="actualCacheSize">#[actualCacheSize]# MB for #[actualCacheDocCount]# files, #[docSizeAverage]# KB / file in average </span></dd>
           <dt><label for="maxCacheSize">The maximum size of the cache</label></dt>
           <dd><input name="maxCacheSize" id="maxCacheSize" type="text" size="8" maxlength="24" value="#[maxCacheSize]#" /> MB</dd>
           <dt>&nbsp;</dt>

htroot/ConfigHTCache_p.java

@@ -77,7 +77,9 @@ public class ConfigHTCache_p {
         }
 
         prop.put("HTCachePath", env.getConfig(SwitchboardConstants.HTCACHE_PATH, SwitchboardConstants.HTCACHE_PATH_DEFAULT));
-        prop.put("actualCacheSize", (Cache.getActualCacheSize() / 1024 / 1024));
+        prop.put("actualCacheSize", Cache.getActualCacheSize() / 1024 / 1024);
+        prop.put("actualCacheDocCount", Cache.getActualCacheDocCount());
+        prop.put("docSizeAverage", Cache.getActualCacheSize() / Cache.getActualCacheDocCount() / 1024);
         prop.put("maxCacheSize", env.getConfigLong(SwitchboardConstants.PROXY_CACHE_SIZE, 64));
         // return rewrite properties
         return prop;

source/net/yacy/crawler/data/Cache.java

@@ -183,6 +183,14 @@ public final class Cache {
         return fileDBunbuffered.length();
     }
     
+    /**
+     * get the current actual cache size
+     * @return
+     */
+    public static long getActualCacheDocCount() {
+        return fileDBunbuffered.size();
+    }
+
     /**
      * close the databases
      */