* </p>
 *
 * <p>
 * The conversion process involves iterating through the input string, identifying Katakana characters,
 * and replacing them with their corresponding Alphabet representations based on the internal mapping.
 * When a Katakana character has multiple Alphabet representations, the converter generates multiple
 * possible readings.
 * </p>
 *
 * <p>

import jakarta.mail.Message;
import jakarta.mail.MessagingException;
import jakarta.mail.Multipart;
import jakarta.mail.Part;
import jakarta.mail.Session;
import jakarta.mail.internet.MailDateFormat;
import jakarta.mail.internet.MimeMessage;
import jakarta.mail.internet.MimeUtility;

/**
 * Gets a text from .eml file.
 *
 * @author shinsuke
 *
 */
public class EmlExtractor extends AbstractExtractor {

         * @throws IllegalArgumentException If the arguments are invalid
         * @throws InsufficientDataException If insufficient data is available
         * @throws InternalException If an internal error occurs
         * @throws InvalidResponseException If the response is invalid
         * @throws NoSuchAlgorithmException If the algorithm is not available
         * @throws XmlParserException If XML parsing fails

        assertNotNull(suggestItem);
        assertEquals(word, suggestItem.getText());

        // Check tags and roles are not null (they might not be empty due to internal processing)
        assertNotNull(suggestItem.getTags());
        assertNotNull(suggestItem.getRoles());
    }

    @Test
    public void testToSuggestItemWithLargeBoost() {

                    writer.write('\n');
                } catch (final Exception e) {
                    if (logger.isDebugEnabled()) {
                        logger.debug("Exception in an internal extractor.", e);
                    }
                }
            }
        }
    }

    /**
     * Extracts text from embedded documents in the PDF.
     * @param document the PDF document

        SuggestSettings settings = builder.build(client, id);

        assertNotNull(settings);
        // Verify that the settings object was created with the correct parameters
        // Note: We can't directly verify internal state of SuggestSettings without getters,
        // but we can verify it was created successfully
    }

    @Test
    public void testBuildWithCustomSettings() {
        // Test building with all custom settings

    }

    /**
     * Gets the active external host IP address for active mode FTP.
     *
     * @return The active external host IP address
     */
    public String getActiveExternalHost() {
        return activeExternalHost;
    }

    /**
     * Sets the active external host IP address for active mode FTP.
     *
     * @param activeExternalHost The active external host IP address
     */

        this.ruleManager = ruleManager;
    }

    /**
     * Returns the interval controller.
     * @return The IntervalController instance.
     */
    public IntervalController getIntervalController() {
        return intervalController;
    }

    /**
     * Sets the interval controller.
     * @param intervalController The IntervalController instance to set.
     */

- **Flexible Configuration**: XML-based dependency injection with LastaFlute DI
- **Extensible Architecture**: Plugin system for custom extractors, transformers, and clients
- **Rate Limiting**: Politeness policies and interval controllers
- **URL Filtering**: Regex-based inclusion/exclusion patterns
- **Data Persistence**: Multiple backend options including OpenSearch integration

## Technology Stack

        final FaultTolerantClient client = new FaultTolerantClient();
        client.setRetryInterval(100);
        final TestClient testClient = new TestClient();
        testClient.exceptionCount = 4;
        testClient.interval = 100;
        final TestListener testListener = new TestListener();
        client.setCrawlerClient(testClient);
        client.setRequestListener(testListener);
        final String url = "http://test.com/";