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Code responsible for parsing the Neo4j configuration.
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/*
* Copyright (c) "Neo4j"
* Neo4j Sweden AB [https://neo4j.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
package org.neo4j.configuration.helpers;
import static org.neo4j.configuration.helpers.DatabaseNameValidator.validateDatabaseNamePattern;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
import java.util.function.Predicate;
import java.util.regex.Pattern;
import org.neo4j.kernel.database.NormalizedDatabaseName;
public class DatabaseNamePattern {
private final Optional regexPattern;
private final String databaseName;
private final String normalizedDatabaseName;
public DatabaseNamePattern(String name) {
validateDatabaseNamePattern(name);
this.regexPattern =
ConfigPatternBuilder.optionalPatternFromConfigString(name.toLowerCase(), Pattern.CASE_INSENSITIVE);
this.databaseName = name;
this.normalizedDatabaseName = new NormalizedDatabaseName(name).name();
}
public boolean matches(String value) {
return regexPattern.map(p -> p.matcher(value).matches()).orElse(normalizedDatabaseName.equals(value));
}
public boolean containsPattern() {
return regexPattern.isPresent();
}
public String getDatabaseName() {
return databaseName;
}
public String getNormalizedDatabaseName() {
return normalizedDatabaseName;
}
@Override
public String toString() {
if (containsPattern()) {
return "Database name pattern=" + databaseName;
} else {
return "Database name=" + databaseName;
}
}
public static Optional> exactNames(List patterns) {
Set exact = new HashSet<>();
for (var pattern : patterns) {
if (pattern.containsPattern()) {
return Optional.empty();
}
exact.add(pattern.getDatabaseName());
}
return Optional.of(exact);
}
public static Predicate matchAny(List patterns) {
return (string) -> patterns.stream().anyMatch(pattern -> pattern.matches(string));
}
public static List patternsOf(String... patterns) {
return Arrays.stream(patterns).map(DatabaseNamePattern::new).toList();
}
}
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