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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.jvm;
18  
19  import org.apache.commons.monitoring.reporting.web.handler.api.Regex;
20  import org.apache.commons.monitoring.reporting.web.handler.api.Template;
21  import org.apache.commons.monitoring.reporting.web.plugin.json.Jsons;
22  import org.apache.commons.monitoring.reporting.web.plugin.jvm.gauges.CPUGauge;
23  import org.apache.commons.monitoring.reporting.web.plugin.jvm.gauges.UsedMemoryGauge;
24  import org.apache.commons.monitoring.reporting.web.template.MapBuilder;
25  import org.apache.commons.monitoring.repositories.Repository;
26  
27  import java.lang.management.ManagementFactory;
28  import java.lang.management.MemoryMXBean;
29  import java.lang.management.OperatingSystemMXBean;
30  import java.util.Iterator;
31  import java.util.Map;
32  
33  public class JVMEndpoints {
34      @Regex
35      public Template home() {
36          final OperatingSystemMXBean os = ManagementFactory.getOperatingSystemMXBean();
37          final MemoryMXBean memory = ManagementFactory.getMemoryMXBean();
38  
39          return new Template("jvm/jvm.vm", new MapBuilder<String, Object>()
40              .set("architecture", os.getArch())
41              .set("name", os.getName())
42              .set("version", os.getVersion())
43              .set("numberProcessor", os.getAvailableProcessors())
44              .set("maxMemory", memory.getHeapMemoryUsage().getMax())
45              .set("initMemory", memory.getHeapMemoryUsage().getInit())
46              .build());
47      }
48  
49      @Regex("/cpu/([0-9]*)/([0-9]*)")
50      public String cpu(final long start, final long end) {
51          return "{ \"data\": " + Jsons.toJson(Repository.INSTANCE.getGaugeValues(start, end, CPUGauge.CPU)) + ", \"label\": \"CPU Usage\", \"color\": \"#317eac\" }";
52      }
53  
54      @Regex("/memory/([0-9]*)/([0-9]*)")
55      public String memory(final long start, final long end) {
56          return "{ \"data\": " + Jsons.toJson(Repository.INSTANCE.getGaugeValues(start, end, UsedMemoryGauge.USED_MEMORY)) + ", \"label\": \"Used Memory\", \"color\": \"#317eac\" }";
57      }
58  }