1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.monitoring.reporting.web.plugin.json;
18
19 import java.util.Iterator;
20 import java.util.Map;
21
22 public final class Jsons {
23 public static String toJson(final Map<Long, Double> data) { // helper for gauges
24 final StringBuilder builder = new StringBuilder().append("[");
25 final Iterator<Map.Entry<Long,Double>> iterator = data.entrySet().iterator();
26 while (iterator.hasNext()) {
27 final Map.Entry<Long, Double> entry = iterator.next();
28 builder.append("[").append(entry.getKey()).append(", ").append(entry.getValue()).append("]");
29 if (iterator.hasNext()) {
30 builder.append(", ");
31 }
32 }
33 return builder.append("]").toString();
34 }
35
36 private Jsons() {
37 // no-op
38 }
39 }