org.apache.ambari.server.state.alert

Class MetricSource.Value

java.lang.Object

org.apache.ambari.server.state.alert.MetricSource.Value

Enclosing class:

MetricSource

public static class MetricSource.Value
extends Object

Constructor Summary

Constructors

Constructor and Description
Value(String value)

Method Summary

Modifier and Type	Method and Description
Object	eval(List<Object> metrics) Evaluate an expression like "{0}/({0} + {1}) * 100.0" where each positional argument represent a metrics value.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Value

public Value(String value)

Method Detail

eval

public Object eval(List<Object> metrics)

Evaluate an expression like "{0}/({0} + {1}) * 100.0" where each positional argument represent a metrics value. The value is converted to SpEL syntax: #var0/(#var0 + #var1) * 100.0 then it is evaluated in the context of the metrics parameters.

toString

public String toString()

Overrides:

toString in class Object