Jmx input plugin

    {
      //Required, JMX listening host/ip
      "host" : "192.168.1.2",
      //Required, JMX listening port
      "port" : 1335,
      //Optional, the username to connect to JMX
      "username" : "user",
      //Optional, the password to connect to JMX
      "password": "pass",
      //Optional, use this alias as a prefix in the metric name. If not set use <host>_<port>
      "alias" : "test.homeserver.elasticsearch",
      //Required, list of JMX metrics to retrieve
      "queries" : [
      {
        //Required, the object name of Mbean to request
        "object_name" : "java.lang:type=Memory",
        //Optional, use this alias in the metrics value instead of the object_name
        "object_alias" : "Memory"
      }, {
        "object_name" : "java.lang:type=Runtime",
        //Optional, set of attributes to retrieve. If not set retrieve
        //all metrics available on the configured object_name.
        "attributes" : [ "Uptime", "StartTime" ],
        "object_alias" : "Runtime"
      }, {
        //object_name can be configured with * to retrieve all matching Mbeans
        "object_name" : "java.lang:type=GarbageCollector,name=*",
        "attributes" : [ "CollectionCount", "CollectionTime" ],
        //object_alias can be based on specific value from the object_name thanks to ${<varname>}.
        //In this case ${type} will be replaced by GarbageCollector...
        "object_alias" : "${type}.${name}"
      }, {
        "object_name" : "java.nio:type=BufferPool,name=*",
        "object_alias" : "${type}.${name}"
      } ]
    }