**Flow**: Poll URL → Validate → Get client → Delay → Check last-modified → Execute → Process → Extract children → Queue children → Delay

### CrawlerClientFactory

Pattern-based client selection using `LinkedHashMap<Pattern, CrawlerClient>`.

**Standard Patterns**:
```java
"^https?://.*"     → httpClient
"^file:.*"         → fileSystemClient
"^ftp://.*"        → ftpClient
"^smb://.*"        → smbClient

    init {
      require(
        (pattern.startsWith("*.") && pattern.indexOf("*", 1) == -1) ||
          (pattern.startsWith("**.") && pattern.indexOf("*", 2) == -1) ||
          pattern.indexOf("*") == -1,
      ) {
        "Unexpected pattern: $pattern"
      }

      this.pattern =
        pattern.toCanonicalHost() ?: throw IllegalArgumentException("Invalid pattern: $pattern")

      when {

        final Set<String> valueSet = new HashSet<>();
        for (final LabelTypePattern pattern : labelTypePatternList) {
            if (pattern.match(path)) {
                valueSet.add(pattern.getValue());
            }
        }
        return valueSet;
    }

    /**
     * Builds a list of label type patterns.
     *
     * @param labelTypeList The list of label types.
     */

### Key Architectural Patterns
- **Factory Pattern** - `BeanDescFactory` for creating bean descriptors, `ParameterizedClassDescFactory` for generic type handling
- **Builder Pattern** - `CopyOptions` for configuring bean copying operations with fluent API
- **Adapter Pattern** - Logging adapters (`JclLoggerAdapter`, `JulLoggerAdapter`) for different logging frameworks

1. Go to kibana home [http://localhost:5601/](http://localhost:5601/).
1. Click **Management**.
1. Click **Index Patterns**.
1. Click **Create index pattern** button
1. Input "fess\_log\*" to the textbox of **index pattern**.
1. Click **Next step**.
1. Set "requestedAt" to the **Time Filter field name**.
1. Click **Create index pattern**.
1. Click **Saved Objects**.
1. Click **Import** and select "fess\_log.ndjson" to import example settings.

      assertThat(messages).contains(failure!!.message)
    }

  fun assertFailureMatches(vararg patterns: String) =
    apply {
      val message = failure!!.message!!
      assertThat(
        patterns.firstOrNull { pattern ->
          message.matches(pattern.toRegex())
        },
      ).isNotNull()
    }

  fun assertSentRequestAtMillis(
    minimum: Long,

							<licenseFamilyName>GNU Lesser General Public License</licenseFamilyName>
							<notes />
							<patterns>
								<pattern>This library is free software; you can redistribute it</pattern>
								<pattern>GNU Lesser General Public License</pattern>
							</patterns>
						</license>
					</licenses>
					<licenseFamilies>

    /** Pattern used to match file paths that this creator can handle. */
    protected Pattern pattern;

    /** Manager for dictionary operations and lifecycle. */
    @Resource
    protected DictionaryManager dictionaryManager;

    /**
     * Creates a new DictionaryCreator with the specified pattern.
     *
     * @param pattern the regular expression pattern to match file paths
     */

     * </ul>
     *
     * @param originalRepository to compare for a match.
     * @param pattern used for match.
     * @return true if the repository is a match to this pattern.
     */
    static boolean matchPattern(ArtifactRepository originalRepository, String pattern) {
        boolean result = false;
        String originalId = originalRepository.getId();

    }

    @Test
    @DisplayName("Test with wildcard patterns")
    void testWildcardPatterns() {
        request = new Smb2QueryDirectoryRequest(mockConfig);

        // Test various wildcard patterns
        String[] patterns = { "*", "*.txt", "test*.*", "?test?.doc" };

        for (String pattern : patterns) {
            request.setFileName(pattern);

            byte[] buffer = new byte[1024];