org.springframework.boot.actuate.autoconfigure.health.IncludeExcludeGroupMemberPredicate Maven / Gradle / Ivy
/*
* Copyright 2012-2022 the original author or authors.
*
* 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
*
* https://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 org.springframework.boot.actuate.autoconfigure.health;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.function.Predicate;
import java.util.stream.Collectors;
/**
* Member predicate that matches based on {@code include} and {@code exclude} sets.
*
* @author Phillip Webb
* @author Madhura Bhave
*/
class IncludeExcludeGroupMemberPredicate implements Predicate {
private final Set include;
private final Set exclude;
IncludeExcludeGroupMemberPredicate(Set include, Set exclude) {
this.include = clean(include);
this.exclude = clean(exclude);
}
@Override
public boolean test(String name) {
name = clean(name);
return isIncluded(name) && !isExcluded(name);
}
private boolean isIncluded(String name) {
return this.include.isEmpty() || this.include.contains("*") || isIncludedName(name);
}
private boolean isIncludedName(String name) {
if (this.include.contains(name)) {
return true;
}
if (name.contains("/")) {
String parent = name.substring(0, name.lastIndexOf("/"));
return isIncludedName(parent);
}
return false;
}
private boolean isExcluded(String name) {
return this.exclude.contains("*") || isExcludedName(name);
}
private boolean isExcludedName(String name) {
if (this.exclude.contains(name)) {
return true;
}
if (name.contains("/")) {
String parent = name.substring(0, name.lastIndexOf("/"));
return isExcludedName(parent);
}
return false;
}
private Set clean(Set names) {
if (names == null) {
return Collections.emptySet();
}
Set cleaned = names.stream().map(this::clean).collect(Collectors.toCollection(LinkedHashSet::new));
return Collections.unmodifiableSet(cleaned);
}
private String clean(String name) {
return (name != null) ? name.trim() : null;
}
}