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Allow config to set camel (default) or snake case for built-in meter …
…names (helidon-io#9429) * Allow config to set camel (default) or snake case for built-in meter names Signed-off-by: Tim Quinn <[email protected]> * Add an MP test for when the SNAKE choice is selected --------- Signed-off-by: Tim Quinn <[email protected]>
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metrics/api/src/main/java/io/helidon/metrics/api/BuiltInMeterNameFormat.java
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|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| /* | ||
| * Copyright (c) 2024 Oracle and/or its affiliates. | ||
| * | ||
| * 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.helidon.metrics.api; | ||
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| /** | ||
| * Choices for the output format for built-in meter names. | ||
| */ | ||
| public enum BuiltInMeterNameFormat { | ||
| /** | ||
| * Snake-case. | ||
| */ | ||
| SNAKE, | ||
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| /** | ||
| * Camel-case (which is compatible with the MicroProfile Metrics spec). | ||
| */ | ||
| CAMEL; | ||
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| static final String DEFAULT = "CAMEL"; | ||
| } |
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58 changes: 58 additions & 0 deletions
58
metrics/system-meters/src/test/java/io/helidon/metrics/systemmeters/MeterBuilderMatcher.java
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| /* | ||
| * Copyright (c) 2024 Oracle and/or its affiliates. | ||
| * | ||
| * 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.helidon.metrics.systemmeters; | ||
|
|
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| import io.helidon.metrics.api.Meter; | ||
|
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| import org.hamcrest.Description; | ||
| import org.hamcrest.Matcher; | ||
| import org.hamcrest.TypeSafeMatcher; | ||
|
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| /** | ||
| * Hamcrest matcher for unit tests involving {@link Meter.Builder} objects. | ||
| */ | ||
| class MeterBuilderMatcher { | ||
|
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| /** | ||
| * A matcher that checks the meter builder's name using the supplied string matcher. | ||
| * | ||
| * @param matcher string matcher to apply to the meter builder's name | ||
| * @return matcher applicable to a meter builder for checking the name | ||
| */ | ||
| static Matcher<Meter.Builder<?, ?>> withName(Matcher<String> matcher) { | ||
| return new WithName(matcher); | ||
| } | ||
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| private static class WithName extends TypeSafeMatcher<Meter.Builder<?, ?>> { | ||
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| private final Matcher<? super String> matcher; | ||
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| private WithName(Matcher<? super String> matcher) { | ||
| this.matcher = matcher; | ||
| } | ||
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| @Override | ||
| protected boolean matchesSafely(Meter.Builder<?, ?> item) { | ||
| return matcher.matches(item.name()); | ||
| } | ||
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| @Override | ||
| public void describeTo(Description description) { | ||
| description.appendText("with name "); | ||
| description.appendDescriptionOf(matcher); | ||
| } | ||
| } | ||
| } |
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