HBASE-4260 Expose a command to manually trigger an HLog roll

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1166740 13f79535-47bb-0310-9956-ffa450edef68

src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestHLogUtils.java

@@ -0,0 +1,45 @@
+/**
+ * Copyright 2011 The Apache Software Foundation
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.hadoop.hbase.regionserver.wal;
+
+import org.apache.hadoop.hbase.HBaseTestingUtility;
+import org.apache.hadoop.hbase.HConstants;
+
+/**
+ * An Utility testcase that returns the number of log files that
+ * were rolled to be accessed from outside packages.
+ * 
+ *
+ */
+public class TestHLogUtils {
+  
+  /**
+   * 
+   * @param log
+   * @return
+   */
+  public static int getNumLogFiles(HLog log) {
+    return log.getNumLogFiles();
+  }
+
+  public static int getNumEntries(HLog log) {
+    return log.getNumEntries();
+  }
+}