FEATURE: Add CompletableFuture BTree insert/get API

Author: oliviarla

src/main/java/net/spy/memcached/ArcusClient.java

@@ -194,12 +194,12 @@ public class ArcusClient extends FrontCacheMemcachedClient implements ArcusClien
 
   private final Transcoder<Object> collectionTranscoder;
 
-  private static final int BOPGET_BULK_CHUNK_SIZE = 200;
-  private static final int SMGET_CHUNK_SIZE = 500;
+  public static final int BOPGET_BULK_CHUNK_SIZE = 200;
+  public static final int SMGET_CHUNK_SIZE = 500;
   private static final int NON_PIPED_BULK_INSERT_CHUNK_SIZE = 500;
 
-  private static final int MAX_GETBULK_ELEMENT_COUNT = 50;
-  private static final int MAX_SMGET_COUNT = 1000; // server configuration is 2000.
+  public static final int MAX_GETBULK_ELEMENT_COUNT = 50;
+  public static final int MAX_SMGET_COUNT = 1000; // server configuration is 2000.
 
   private static final int SHUTDOWN_TIMEOUT_MILLISECONDS = 2000;
   private static final AtomicInteger CLIENT_ID = new AtomicInteger(1);
@@ -3178,7 +3178,7 @@ public void complete() {
     return rv;
   }
 
-  private void checkDupKey(Collection<String> keyList) {
+  public void checkDupKey(Collection<String> keyList) {
     /*
      * Dup Check -> insure elements sequentially added to keyList
      * */

src/main/java/net/spy/memcached/collection/BTreeSMGetWithByteTypeBkey.java

@@ -31,7 +31,7 @@ public BTreeSMGetWithByteTypeBkey(MemcachedNode node, List<String> keyList,
         eFlagFilter, count, unique);
   }
 
-  private BTreeSMGetWithByteTypeBkey(MemcachedNode node, List<String> keyList,
+  public BTreeSMGetWithByteTypeBkey(MemcachedNode node, List<String> keyList,
                                      String range,
                                      ElementFlagFilter eFlagFilter,
                                      int count, boolean unique) {

src/main/java/net/spy/memcached/collection/BTreeSMGetWithLongTypeBkey.java

@@ -29,7 +29,7 @@ public BTreeSMGetWithLongTypeBkey(MemcachedNode node, List<String> keyList,
     super(node, keyList, from + ".." + to, eFlagFilter, count, unique);
   }
 
-  private BTreeSMGetWithLongTypeBkey(MemcachedNode node, List<String> keyList,
+  public BTreeSMGetWithLongTypeBkey(MemcachedNode node, List<String> keyList,
                                      String range,
                                      ElementFlagFilter eFlagFilter,
                                      int count, boolean unique) {