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Simplified access to HystrixCommandMetrics #30

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merged 1 commit into from
Nov 30, 2012
Merged

Simplified access to HystrixCommandMetrics #30

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13 changes: 12 additions & 1 deletion hystrix-core/src/main/java/com/netflix/hystrix/HystrixCommandMetrics.java
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Original file line number Diff line number Diff line change
Expand Up @@ -47,7 +47,7 @@ public class HystrixCommandMetrics {
private static final ConcurrentHashMap<String, HystrixCommandMetrics> metrics = new ConcurrentHashMap<String, HystrixCommandMetrics>();

/**
* Get the {@link HystrixCommandMetrics} instance for a given {@link HystrixCommandKey}.
* Get or create the {@link HystrixCommandMetrics} instance for a given {@link HystrixCommandKey}.
* <p>
* This is thread-safe and ensures only 1 {@link HystrixCommandMetrics} per {@link HystrixCommandKey}.
*
Expand Down Expand Up @@ -82,6 +82,17 @@ public static HystrixCommandMetrics getInstance(HystrixCommandKey key, HystrixCo
}
}

/**
* Get the {@link HystrixCommandMetrics} instance for a given {@link HystrixCommandKey} or null if one does not exist.
*
* @param key
* {@link HystrixCommandKey} of {@link HystrixCommand} instance requesting the {@link HystrixCommandMetrics}
* @return {@link HystrixCommandMetrics}
*/
public static HystrixCommandMetrics getInstance(HystrixCommandKey key) {
return metrics.get(key.name());
}

private final HystrixCommandProperties properties;
private final HystrixRollingNumber counter;
private final HystrixRollingPercentile percentileExecution;
Expand Down