public static Builder named ( String name ) { /* A name can contain either a pure metric name, or a string returned by encodeTagsInName(). If it's the latter, it looks like "TAG(tag1=value1 tag2=value2)metricname". */ if ( ! hasEncodedTagInName ( name ) ) { return new Builder ( name ) ; } // parse out the tags int tagEnd = name . lastIndexOf ( ' ' ) ; if ( tagEnd == - 1 ) { throw new IllegalArgumentException ( "Tag definition missing closing parenthesis for metric '" + name + "'" ) ; } String tagString = name . substring ( 4 , tagEnd ) ; name = name . substring ( tagEnd + 1 ) ; return new Builder ( name ) . withTags ( parseTags ( tagString ) ) ; }
Creates a Builder for a metric name .