List<Rule> rules = ruleManager.getRules();
        assertEquals(4, rules.size());
        assertEquals("rule1", rules.get(0).getRuleId());
        assertEquals("rule2", rules.get(1).getRuleId());
        assertEquals("rule3", rules.get(2).getRuleId());
        assertEquals("rule4", rules.get(3).getRuleId());
    }

    /**
     * Test adding duplicate rules
     */

        testRule.setRuleId("middle");
        testRule.register(1);

        List<Rule> rules = ruleManager.getRules();
        assertEquals(3, rules.size());
        assertEquals("rule1", rules.get(0).getRuleId());
        assertEquals("middle", rules.get(1).getRuleId());
        assertEquals("rule2", rules.get(2).getRuleId());
    }

    /**
     * Test register method with last index
     */

/**
 * 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>
 *

        List<Rule> rules = new ArrayList<>();

        // Create rules with unique IDs
        for (int i = 0; i < 100; i++) {
            TestRule rule = new TestRule("rule_" + i, new TestResponseProcessor("processor_" + i), true);
            rules.add(rule);
        }

        // Verify all IDs are unique
        for (int i = 0; i < rules.size(); i++) {

import jakarta.annotation.Resource;

/**
 * Abstract base class for implementing {@link Rule} interfaces.
 * Provides common functionality and properties for crawler rules.
 *
 * <p>
 * This class handles the registration of rules with the {@link RuleManager}
 * and provides getter and setter methods for common properties such as
 * {@code ruleId} and {@code responseProcessor}.
 * </p>
 *
 * <p>

import org.codelibs.fess.crawler.rule.RuleManager;

/**
 * Implementation of the {@link RuleManager} interface.
 * Manages a list of rules for the crawler.
 * Provides methods to add, remove, check, and retrieve rules.
 *
 */
public class RuleManagerImpl implements RuleManager {

    /** The list of rules managed by this rule manager. */
    protected final List<Rule> ruleList = new ArrayList<>();

    /**

        }

        Reader reader = null;
        if (settings.getAsList("synonyms", null) != null) {
            final List<String> rules = Analysis.parseWordList(env, settings, "synonyms", s -> s);
            final StringBuilder sb = new StringBuilder();
            for (final String line : rules) {
                sb.append(line).append(System.getProperty("line.separator"));
            }

    /**
     * Checks if access to a given path is allowed for a specific user agent according to robots.txt rules.
     *
     * @param path The path to check for access permission
     * @param userAgent The user agent string to check against robots.txt directives
     * @return true if access is allowed, false if access is disallowed by robots.txt rules.
     *         Returns true if no matching directive is found for the user agent.
     */

#### Content Processing Pipeline
- **Extractors**: Content extraction from various formats
- **Transformers**: Data transformation and enrichment
- **Filters**: URL filtering with regex patterns
- **Rules**: Content processing rules and validation

## Building and Testing

### Build Commands

```bash
# Build all modules
mvn clean install

# Build without tests
mvn clean install -DskipTests

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

import org.codelibs.fess.crawler.entity.ResponseData;

/**
 * The RuleManager interface provides methods to manage rules for processing response data.
 * It allows adding, retrieving, and removing rules, as well as checking for their existence.
 */
public interface RuleManager {

    /**
     * Retrieves the rule associated with the given response data.
     *