This JSON rule is equivalent to the following MinIO Client command:
```
mc ilm rule add --noncurrent-expire-days 30 --noncurrent-expire-newer 5 --prefix "user-uploads/" myminio/mydata
```

#### 3.2.a Automatic removal of noncurrent versions keeping only most recent ones immediately (MinIO only extension)

 */
package org.codelibs.fess.crawler.rule.impl;

import org.codelibs.fess.crawler.container.CrawlerContainer;
import org.codelibs.fess.crawler.processor.ResponseProcessor;
import org.codelibs.fess.crawler.rule.Rule;
import org.codelibs.fess.crawler.rule.RuleManager;

import jakarta.annotation.Resource;

/**
 * Abstract base class for implementing {@link Rule} interfaces.

    /**
     * Gets a boost document rule by its ID.
     * @param id The boost document rule ID.
     * @return Optional entity containing the boost document rule if found.
     */
    public OptionalEntity<BoostDocumentRule> getBoostDocumentRule(final String id) {
        return boostDocumentRuleBhv.selectByPK(id);
    }

    /**
     * Stores (inserts or updates) a boost document rule.

    val rule = findMatchingRule(domainLabels)
    if (domainLabels.size == rule.size && rule[0][0] != EXCEPTION_MARKER) {
      return null // The domain is a public suffix.
    }

    val firstLabelOffset =
      if (rule[0][0] == EXCEPTION_MARKER) {
        // Exception rules hold the effective TLD plus one.
        domainLabels.size - rule.size
      } else {

 * hostnames or URLs to be treated as equivalent for crawling and indexing purposes.
 * It maintains a list of DuplicateHost rules and applies them to URLs.
 *
 */
public class DuplicateHostHelper {
    private static final Logger logger = LogManager.getLogger(DuplicateHostHelper.class);

    /** List of duplicate host rules for URL conversion */

     */
    /**
     * Adds a rule to the specified index.
     *
     * @param index the position at which the rule should be added
     * @param rule the rule to be added
     */
    void addRule(int index, Rule rule);

    /**
     * Removes the specified rule from the rule manager.
     *
     * @param rule the rule to be removed
     * @return true if the rule was successfully removed, false otherwise

/**
 * Helper class for converting URLs based on a set of predefined rules.
 *
 * <p>This class provides functionality to convert URLs by replacing parts of the URL
 * based on a map of target strings and their corresponding replacements. It allows
 * adding new conversion rules, setting the entire conversion map, and converting
 * URLs using these rules.</p>
 *

        while (!source.exhausted()) {
          var rule: ByteString = source.readUtf8LineStrict().toRule() ?: continue

          if (rule.startsWith(EXCEPTION_RULE_MARKER)) {
            rule = rule.substring(1)
            // We use '\n' for end of value.
            totalExceptionRuleBytes += rule.size + 1
            sortedExceptionRules.add(rule)
          } else {
            totalRuleBytes += rule.size + 1 // We use '\n' for end of value.

        assertTrue(rule.isTarget(12, 30, 3)); // 12:30 on Tuesday
        assertTrue(rule.isTarget(12, 30, 5)); // 12:30 on Thursday

        // Within time range but not matching day
        assertFalse(rule.isTarget(12, 30, 2)); // 12:30 on Monday
        assertFalse(rule.isTarget(12, 30, 4)); // 12:30 on Wednesday
        assertFalse(rule.isTarget(12, 30, 6)); // 12:30 on Friday
        assertFalse(rule.isTarget(12, 30, 7)); // 12:30 on Saturday

            ThreadUtil.sleep(delay);
        }
    }

    /**
     * Calculates the delay in milliseconds based on current time and configured rules.
     * The method checks each rule to see if it applies to the current time and day.
     *
     * @return the delay in milliseconds, or 0 if no rules apply
     */
    protected long getDelay() {
        if (ruleList.isEmpty()) {
            return 0;
        }