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Issue ReactiveX#72: Created a resilience4j-metrics module for Dropwiz…
…ard metri… (ReactiveX#80) Issue ReactiveX#72: Created a resilience4j-metrics module for Dropwizard metrics and moved the Stopwatch class into a new resilience4j-core module.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| dependencies { | ||
| compile (libraries.metrics) | ||
| testCompile project(':resilience4j-test') | ||
| } |
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resilience4j-metrics/src/main/java/io/github/resilience4j/metrics/Metrics.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| /* | ||
| * | ||
| * Copyright 2017: Robert Winkler | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| * | ||
| */ | ||
| package io.github.resilience4j.metrics; | ||
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| import com.codahale.metrics.Timer; | ||
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| import java.util.function.Function; | ||
| import java.util.function.Supplier; | ||
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| import javaslang.control.Try; | ||
|
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| public interface Metrics { | ||
|
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| /** | ||
| * Creates a timed checked supplier. | ||
| * @param timer the timer to use | ||
| * @param supplier the original supplier | ||
| * @return a timed supplier | ||
| */ | ||
| static <T> Try.CheckedSupplier<T> decorateCheckedSupplier(Timer timer, Try.CheckedSupplier<T> supplier){ | ||
| return () -> { | ||
| try (Timer.Context context = timer.time()) { | ||
| return supplier.get(); | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| /** | ||
| * Creates a timed runnable. | ||
| * @param timer the timer to use | ||
| * @param runnable the original runnable | ||
| * @return a timed runnable | ||
| */ | ||
| static Try.CheckedRunnable decorateCheckedRunnable(Timer timer, Try.CheckedRunnable runnable){ | ||
| return () -> { | ||
| try (Timer.Context context = timer.time()) { | ||
| runnable.run(); | ||
| } | ||
| }; | ||
| } | ||
|
|
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| /** | ||
| * Creates a timed checked supplier. | ||
| * @param timer the timer to use | ||
| * @param supplier the original supplier | ||
| * @return a timed supplier | ||
| */ | ||
| static <T> Supplier<T> decorateSupplier(Timer timer, Supplier<T> supplier){ | ||
| return () -> { | ||
| try (Timer.Context context = timer.time()) { | ||
| return supplier.get(); | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| /** | ||
| * Creates a timed runnable. | ||
| * @param timer the timer to use | ||
| * @param runnable the original runnable | ||
| * @return a timed runnable | ||
| */ | ||
| static Runnable decorateRunnable(Timer timer, Runnable runnable){ | ||
| return () -> { | ||
| try (Timer.Context context = timer.time()) { | ||
| runnable.run(); | ||
| } | ||
| }; | ||
| } | ||
|
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|
|
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| /** | ||
| * Creates a timed function. | ||
| * @param timer the timer to use | ||
| * @param function the original function | ||
| * @return a timed function | ||
| */ | ||
| static <T, R> Function<T, R> decorateFunction(Timer timer, Function<T, R> function){ | ||
| return (T t) -> { | ||
| try (Timer.Context context = timer.time()) { | ||
| return function.apply(t); | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| /** | ||
| * Creates a timed function. | ||
| * @param timer the timer to use | ||
| * @param function the original function | ||
| * @return a timed function | ||
| */ | ||
| static <T, R> Try.CheckedFunction<T, R> decorateCheckedFunction(Timer timer, Try.CheckedFunction<T, R> function){ | ||
| return (T t) -> { | ||
| try (Timer.Context context = timer.time()) { | ||
| return function.apply(t); | ||
| } | ||
| }; | ||
| } | ||
| } |
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