Package org.apache.kafka.common

Class MetricNameTemplate

java.lang.Object
org.apache.kafka.common.MetricNameTemplate
public class MetricNameTemplate extends Object
A template for a MetricName. It contains a name, group, and description, as well as all the tags that will be used to create the mBean name. Tag values are omitted from the template, but are filled in at runtime with their specified values. The order of the tags is maintained, if an ordered set is provided, so that the mBean names can be compared and sorted lexicographically.

  • Constructor Details

    • MetricNameTemplate

      public MetricNameTemplate(String name, String group, String description, Set<String> tagsNames)
      Create a new template. Note that the order of the tags will be preserved if the supplied tagsNames set has an order.
      Parameters:
      name - the name of the metric; may not be null
      group - the name of the group; may not be null
      description - the description of the metric; may not be null
      tagsNames - the set of metric tag names, which can/should be a set that maintains order; may not be null

    • MetricNameTemplate

      public MetricNameTemplate(String name, String group, String description, String... tagsNames)
      Create a new template. Note that the order of the tags will be preserved.
      Parameters:
      name - the name of the metric; may not be null
      group - the name of the group; may not be null
      description - the description of the metric; may not be null
      tagsNames - the names of the metric tags in the preferred order; none of the tag names should be null

  • Method Details

    • name

      public String name()
      Get the name of the metric.
      Returns:
      the metric name; never null

    • group

      public String group()
      Get the name of the group.
      Returns:
      the group name; never null

    • description

      public String description()
      Get the description of the metric.
      Returns:
      the metric description; never null

    • tags

      public Set<String> tags()
      Get the set of tag names for the metric.
      Returns:
      the ordered set of tag names; never null but possibly empty

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object o)
      Overrides:
      equals in class Object

    • toString

      public String toString()
      Overrides:
      toString in class Object