Squashed 'src/rocksdb/' content from commit 78b8a7d

git-subtree-dir: src/rocksdb
git-subtree-split: 78b8a7d908d7e67cc6664398e39560b76c965773

java/org/rocksdb/test/StatisticsCollectorTest.java

@@ -0,0 +1,40 @@
+// Copyright (c) 2014, Facebook, Inc.  All rights reserved.
+// This source code is licensed under the BSD-style license found in the
+// LICENSE file in the root directory of this source tree. An additional grant
+// of patent rights can be found in the PATENTS file in the same directory.
+
+package org.rocksdb.test;
+
+import org.rocksdb.*;
+
+public class StatisticsCollectorTest {
+  static final String db_path = "/tmp/backupablejni_db";
+  static {
+    RocksDB.loadLibrary();
+  }
+
+  public static void main(String[] args) 
+      throws InterruptedException, RocksDBException {
+    Options opt = new Options().createStatistics().setCreateIfMissing(true);
+    Statistics stats = opt.statisticsPtr();
+
+    RocksDB db = RocksDB.open(db_path);
+
+    StatsCallbackMock callback = new StatsCallbackMock();
+    StatisticsCollector statsCollector = new StatisticsCollector(stats, 100,
+        callback);
+    statsCollector.start();
+
+    Thread.sleep(1000);
+
+    assert(callback.tickerCallbackCount > 0);
+    assert(callback.histCallbackCount > 0);
+
+    statsCollector.shutDown();
+
+    db.close();
+    opt.dispose();
+
+    System.out.println("Stats collector test passed.!");
+  }
+}