org.apache.nifi.prioritizer

Class PriorityAttributePrioritizer

java.lang.Object

org.apache.nifi.prioritizer.PriorityAttributePrioritizer

All Implemented Interfaces:

java.util.Comparator<FlowFile>, FlowFilePrioritizer

public class PriorityAttributePrioritizer
extends java.lang.Object
implements FlowFilePrioritizer

This prioritizer checks each FlowFile for a "priority" attribute and lets that attribute determine the priority. 1. if neither FlowFile has a "priority" attribute then order will be FirstInFirstOut 2. if one FlowFile has a "priority" attribute and the other does not, then the one with the attribute wins 3. if one or both "priority" attributes is an integer, then the lowest number wins 4. the "priority" attributes are compared lexicographically and the lowest wins

Constructor Summary

Constructors

Constructor and Description
PriorityAttributePrioritizer()

Method Summary

Modifier and Type	Method and Description
int	compare(FlowFile o1, FlowFile o2)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

PriorityAttributePrioritizer

public PriorityAttributePrioritizer()

Method Detail

compare

public int compare(FlowFile o1,
                   FlowFile o2)

Specified by:

compare in interface java.util.Comparator<FlowFile>