fix: updated javadoc

Signed-off-by: Matt Peterson <[email protected]>

server/src/main/java/com/hedera/block/server/config/BlockNodeContextFactory.java

@@ -36,8 +36,11 @@ public class BlockNodeContextFactory {
     private BlockNodeContextFactory() {}
 
     /**
+     * Use the create method to build a singleton block node context to manage system-wide metrics.
+     *
      * @return an instance of {@link BlockNodeContext} which holds {@link Configuration}, {@link
      *     Metrics} and {@link MetricsService} for the rest of the application to use.
+     * @throws IOException when the java libraries fail to read information from a configuration source.
      */
     public static BlockNodeContext create() throws IOException {
         final Configuration configuration = getConfiguration();

server/src/main/java/com/hedera/block/server/metrics/MetricsService.java

@@ -60,9 +60,24 @@ public class MetricsService {
     /** An example counter. */
     public final Counter exampleCounter;
 
+    /**
+     * Update the counter of live block items transiting via the live stream.
+     */
     public final Counter liveBlockItems;
+
+    /**
+     * Update the counter of blocks persisted to storage.
+     */
     public final Counter blocksPersisted;
+
+    /**
+     * Update the counter of single blocks retrieved from storage.
+     */
     public final Counter singleBlocksRetrieved;
+
+    /**
+     * Update the gauge of subscribers currently consuming to the live stream.
+     */
     public final LongGauge subscribers;
 
     /**