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Merge pull request #6 from SylvainJuge/assertions-refactoring
Assertions refactoring
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60 changes: 60 additions & 0 deletions
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...rationTest/java/io/opentelemetry/contrib/jmxscraper/assertions/AttributeMatcherGroup.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| /* | ||
| * Copyright The OpenTelemetry Authors | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
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| package io.opentelemetry.contrib.jmxscraper.assertions; | ||
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| import java.util.Collection; | ||
| import java.util.Map; | ||
| import java.util.stream.Collectors; | ||
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| /** Group of attribute matchers */ | ||
| public class AttributeMatcherGroup { | ||
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| // stored as a Map for easy lookup by name | ||
| private final Map<String, AttributeMatcher> matchers; | ||
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| /** | ||
| * Constructor for a set of attribute matchers | ||
| * | ||
| * @param matchers collection of matchers to build a group from | ||
| * @throws IllegalStateException if there is any duplicate key | ||
| */ | ||
| AttributeMatcherGroup(Collection<AttributeMatcher> matchers) { | ||
| this.matchers = | ||
| matchers.stream().collect(Collectors.toMap(AttributeMatcher::getAttributeName, m -> m)); | ||
| } | ||
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| /** | ||
| * Checks if attributes match this attribute matcher group | ||
| * | ||
| * @param attributes attributes to check as map | ||
| * @return {@literal true} when the attributes match all attributes from this group | ||
| */ | ||
| public boolean matches(Map<String, String> attributes) { | ||
| if (attributes.size() != matchers.size()) { | ||
| return false; | ||
| } | ||
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| for (Map.Entry<String, String> entry : attributes.entrySet()) { | ||
| AttributeMatcher matcher = matchers.get(entry.getKey()); | ||
| if (matcher == null) { | ||
| // no matcher for this key: unexpected key | ||
| return false; | ||
| } | ||
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| if (!matcher.matchesValue(entry.getValue())) { | ||
| // value does not match: unexpected value | ||
| return false; | ||
| } | ||
| } | ||
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| return true; | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return matchers.values().toString(); | ||
| } | ||
| } |
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