# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS or "Cross-Origin Resource Sharing"</a> refers to the situations when a frontend running in a browser has JavaScript code that communicates with a backend, and the backend is in a different "origin" than the frontend.

## Origin { #origin }

    /**
     * Enumeration representing HTTP methods.
     * <ul>
     *   <li>GET - Requests data from a specified resource.</li>
     *   <li>POST - Submits data to be processed to a specified resource.</li>
     *   <li>PUT - Updates a current resource with new data.</li>
     *   <li>DELETE - Deletes the specified resource.</li>
     *   <li>HEAD - Same as GET but returns only HTTP headers and no document body.</li>

import org.codelibs.fess.crawler.exception.CrawlingAccessException;
import org.codelibs.fess.crawler.extractor.Extractor;
import org.codelibs.fess.crawler.extractor.ExtractorFactory;

import jakarta.annotation.Resource;

/**
 * TextTransformer is a class that transforms a ResponseData object into a ResultData object containing the extracted text content.
 * It uses an Extractor to extract the text from the response body based on the MIME type.

    /**
     * Creates a directory entry enumeration iterator.
     *
     * @param th the SMB tree handle for the connection
     * @param parent the parent resource being enumerated
     * @param wildcard the wildcard pattern for filtering entries
     * @param filter additional resource name filter to apply
     * @param searchAttributes the file attributes to search for
     * @throws CIFSException if an error occurs during initialization
     */

# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

        return messageCode.substring(1, Math.max(1, messageCode.length() - CODE_NUMBER_LENGTH));
    }

    /**
     * Returns the resource bundle.
     *
     * @param systemName
     *            System name
     * @return Resource bundle
     */
    protected static ResourceBundle getResourceBundle(final String systemName) {
        if (!initialized) {
            initialize();
        }

import org.codelibs.fess.crawler.exception.MaxLengthExceededException;
import org.codelibs.fess.crawler.helper.ContentLengthHelper;
import org.codelibs.fess.crawler.helper.MimeTypeHelper;

import jakarta.annotation.Resource;

/**
 * FileSystemClient is CrawlerClient implementation to crawl files on a file
 * system.
 *
 * @author shinsuke
 *
 */
public class FileSystemClient extends AbstractCrawlerClient {

            handleNodeAvailable(notification);
            break;
    }
}

private void handleResourceChange(WitnessNotification notification) {
    // Resource state changed - may need to reconnect
    log.info("Resource change detected for: {}", notification.getResourceName());
    
    // Schedule reconnection attempt
    scheduleReconnection(1000);  // 1 second delay
}

 *   <li>Dynamic passwords provided through extraction parameters</li>
 * </ul>
 *
 * <p>Passwords are matched against URLs or resource names using regular expression patterns.
 * The extractor first tries to match against the URL, then falls back to the resource name if available.
 *
 * @author shinsuke
 */
public abstract class PasswordBasedExtractor extends AbstractExtractor {

        // Default constructor
    }

    /**
     * Behavior class for file authentication database operations.
     */
    @Resource
    protected FileAuthenticationBhv fileAuthenticationBhv;

    /**
     * Configuration settings for the Fess application.
     */
    @Resource
    protected FessConfig fessConfig;

    /**
     * Retrieves a paginated list of file authentication configurations.
     *