Extract more methods to improve readability

Author: marcphilipp

junit-platform-suite-commons/src/main/java/org/junit/platform/suite/commons/SuiteLauncherDiscoveryRequestBuilder.java

@@ -338,6 +338,7 @@ public SuiteLauncherDiscoveryRequestBuilder applyConfigurationParametersFromSuit
 	 *   <li>{@link SelectModules}</li>
 	 *   <li>{@link SelectUris}</li>
 	 *   <li>{@link SelectPackages}</li>
+	 *   <li>{@link Select}</li>
 	 * </ul>
 	 *
 	 * @param suiteClass the class to apply the discovery selectors and filter
@@ -349,71 +350,84 @@ public SuiteLauncherDiscoveryRequestBuilder applyConfigurationParametersFromSuit
 	public SuiteLauncherDiscoveryRequestBuilder applySelectorsAndFiltersFromSuite(Class<?> suiteClass) {
 		Preconditions.notNull(suiteClass, "Suite class must not be null");
 
-		// Annotations in alphabetical order (except @SelectClasses)
-		// @formatter:off
-		findAnnotationValues(suiteClass, ExcludeClassNamePatterns.class, ExcludeClassNamePatterns::value)
-				.flatMap(SuiteLauncherDiscoveryRequestBuilder::trimmed)
-				.map(ClassNameFilter::excludeClassNamePatterns)
+		addExcludeFilters(suiteClass);
+		// Process @SelectClasses and @SelectMethod before @IncludeClassNamePatterns, since the names
+		// of selected classes get automatically added to the include filter.
+		addClassAndMethodSelectors(suiteClass);
+		addIncludeFilters(suiteClass);
+		addOtherSelectors(suiteClass);
+		return this;
+	}
+
+	private void addExcludeFilters(Class<?> suiteClass) {
+		findAnnotationValues(suiteClass, ExcludeClassNamePatterns.class, ExcludeClassNamePatterns::value) //
+				.flatMap(SuiteLauncherDiscoveryRequestBuilder::trimmed) //
+				.map(ClassNameFilter::excludeClassNamePatterns) //
 				.ifPresent(this::filters);
-		findAnnotationValues(suiteClass, ExcludeEngines.class, ExcludeEngines::value)
-				.map(EngineFilter::excludeEngines)
+		findAnnotationValues(suiteClass, ExcludeEngines.class, ExcludeEngines::value) //
+				.map(EngineFilter::excludeEngines) //
 				.ifPresent(this::filters);
-		findAnnotationValues(suiteClass, ExcludePackages.class, ExcludePackages::value)
-				.map(PackageNameFilter::excludePackageNames)
+		findAnnotationValues(suiteClass, ExcludePackages.class, ExcludePackages::value) //
+				.map(PackageNameFilter::excludePackageNames) //
 				.ifPresent(this::filters);
-		findAnnotationValues(suiteClass, ExcludeTags.class, ExcludeTags::value)
-				.map(TagFilter::excludeTags)
+		findAnnotationValues(suiteClass, ExcludeTags.class, ExcludeTags::value) //
+				.map(TagFilter::excludeTags) //
 				.ifPresent(this::filters);
-		// Process @SelectClasses before @IncludeClassNamePatterns, since the names
-		// of selected classes get automatically added to the include filter.
-		findAnnotation(suiteClass, SelectClasses.class)
-				.map(annotation -> selectClasses(suiteClass, annotation))
+	}
+
+	private void addClassAndMethodSelectors(Class<?> suiteClass) {
+		findAnnotation(suiteClass, SelectClasses.class) //
+				.map(annotation -> selectClasses(suiteClass, annotation)) //
 				.ifPresent(this::selectors);
-		findRepeatableAnnotations(suiteClass, SelectMethod.class)
-				.stream()
-				.map(annotation -> selectMethod(suiteClass, annotation))
+		findRepeatableAnnotations(suiteClass, SelectMethod.class) //
+				.stream() //
+				.map(annotation -> selectMethod(suiteClass, annotation)) //
 				.forEach(this::selectors);
-		findAnnotationValues(suiteClass, IncludeClassNamePatterns.class, IncludeClassNamePatterns::value)
-				.flatMap(SuiteLauncherDiscoveryRequestBuilder::trimmed)
-				.map(this::createIncludeClassNameFilter)
+	}
+
+	private void addIncludeFilters(Class<?> suiteClass) {
+		findAnnotationValues(suiteClass, IncludeClassNamePatterns.class, IncludeClassNamePatterns::value) //
+				.flatMap(SuiteLauncherDiscoveryRequestBuilder::trimmed) //
+				.map(this::createIncludeClassNameFilter) //
 				.ifPresent(filters -> {
 					this.includeClassNamePatternsUsed = true;
 					filters(filters);
 				});
-		findAnnotationValues(suiteClass, IncludeEngines.class, IncludeEngines::value)
-				.map(EngineFilter::includeEngines)
+		findAnnotationValues(suiteClass, IncludeEngines.class, IncludeEngines::value) //
+				.map(EngineFilter::includeEngines) //
 				.ifPresent(this::filters);
-		findAnnotationValues(suiteClass, IncludePackages.class, IncludePackages::value)
-				.map(PackageNameFilter::includePackageNames)
+		findAnnotationValues(suiteClass, IncludePackages.class, IncludePackages::value) //
+				.map(PackageNameFilter::includePackageNames) //
 				.ifPresent(this::filters);
-		findAnnotationValues(suiteClass, IncludeTags.class, IncludeTags::value)
-				.map(TagFilter::includeTags)
+		findAnnotationValues(suiteClass, IncludeTags.class, IncludeTags::value) //
+				.map(TagFilter::includeTags) //
 				.ifPresent(this::filters);
-		findRepeatableAnnotations(suiteClass, SelectClasspathResource.class)
-				.stream()
-				.map(annotation -> selectClasspathResource(annotation.value(), annotation.line(), annotation.column()))
+	}
+
+	private void addOtherSelectors(Class<?> suiteClass) {
+		findRepeatableAnnotations(suiteClass, SelectClasspathResource.class) //
+				.stream() //
+				.map(annotation -> selectClasspathResource(annotation.value(), annotation.line(), annotation.column())) //
 				.forEach(this::selectors);
-		findAnnotationValues(suiteClass, SelectDirectories.class, SelectDirectories::value)
-				.map(AdditionalDiscoverySelectors::selectDirectories)
+		findAnnotationValues(suiteClass, SelectDirectories.class, SelectDirectories::value) //
+				.map(AdditionalDiscoverySelectors::selectDirectories) //
 				.ifPresent(this::selectors);
-		findRepeatableAnnotations(suiteClass, SelectFile.class)
-				.stream()
-				.map(annotation -> selectFile(annotation.value(), annotation.line(), annotation.column()))
+		findRepeatableAnnotations(suiteClass, SelectFile.class) //
+				.stream() //
+				.map(annotation -> selectFile(annotation.value(), annotation.line(), annotation.column())) //
 				.forEach(this::selectors);
-		findAnnotationValues(suiteClass, SelectModules.class, SelectModules::value)
-				.map(AdditionalDiscoverySelectors::selectModules)
+		findAnnotationValues(suiteClass, SelectModules.class, SelectModules::value) //
+				.map(AdditionalDiscoverySelectors::selectModules) //
 				.ifPresent(this::selectors);
-		findAnnotationValues(suiteClass, SelectUris.class, SelectUris::value)
-				.map(AdditionalDiscoverySelectors::selectUris)
+		findAnnotationValues(suiteClass, SelectUris.class, SelectUris::value) //
+				.map(AdditionalDiscoverySelectors::selectUris) //
 				.ifPresent(this::selectors);
-		findAnnotationValues(suiteClass, SelectPackages.class, SelectPackages::value)
-				.map(AdditionalDiscoverySelectors::selectPackages)
+		findAnnotationValues(suiteClass, SelectPackages.class, SelectPackages::value) //
+				.map(AdditionalDiscoverySelectors::selectPackages) //
 				.ifPresent(this::selectors);
-		findAnnotationValues(suiteClass, Select.class, Select::value)
-				.map(AdditionalDiscoverySelectors::parseIdentifiers)
+		findAnnotationValues(suiteClass, Select.class, Select::value) //
+				.map(AdditionalDiscoverySelectors::parseIdentifiers) //
 				.ifPresent(this::selectors);
-		// @formatter:on
-		return this;
 	}
 
 	/**