1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package org.apache.omid.metrics;
19
20 public class MetricsUtils {
21
22 private static final char DEFAULT_SEPARATOR = '.';
23
24 public static String name(String name, String... otherNames) {
25 return name(name, DEFAULT_SEPARATOR, otherNames);
26 }
27
28 public static String name(String name, char separator, String... otherNames) {
29 final StringBuffer builder = new StringBuffer(name);
30 if (otherNames != null) {
31 for (String otherName : otherNames) {
32 concat(builder, otherName, separator);
33 }
34 }
35 return builder.toString();
36 }
37
38 private static void concat(StringBuffer head, String tail, char separator) {
39 if (tail != null && !tail.isEmpty()) {
40 if (head.length() > 0) {
41 head.append(separator);
42 }
43 head.append(tail);
44 }
45 }
46
47 }