# CORS (Cross-Origin Resource Sharing)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS o "Cross-Origin Resource Sharing"</a> se refiere a situaciones en las que un frontend que se ejecuta en un navegador tiene código JavaScript que se comunica con un backend, y el backend está en un "origen" diferente al frontend.

## Origen

            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
}

import jakarta.annotation.Resource;
import jakarta.servlet.http.HttpServletRequest;

/**
 * The service for access token.
 */
public class AccessTokenService {

    /**
     * Default constructor.
     */
    public AccessTokenService() {
        // nothing
    }

    /**
     * The behavior of access token.
     */
    @Resource
    protected AccessTokenBhv accessTokenBhv;

     * This provides database operations for RelatedQuery entities.
     */
    @Resource
    protected RelatedQueryBhv relatedQueryBhv;

    /**
     * Configuration properties for Fess application.
     * Used to access various configuration settings like paging parameters.
     */
    @Resource
    protected FessConfig fessConfig;

    /**

        }

        // Session should be automatically released
        assertFalse(session.isInUse(), "Session should be released after try-with-resources");
    }

    /**
     * Test resource cleanup behavior
     */
    @Test
    @Timeout(5)
    public void testResourceCleanup() throws Exception {

import org.apache.catalina.LifecycleException;
import org.apache.catalina.WebResource;
import org.apache.catalina.webresources.StandardRoot;

/**
 * Fess-specific web resource root implementation for Tomcat.
 * This class extends StandardRoot to provide custom web resource handling
 * for Fess plugins, including support for plugin JAR files in the WEB-INF/plugin directory.
 */
public class FessWebResourceRoot extends StandardRoot {

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.

    @Resource
    private FileConfigService fileConfigService;

    /** Pager for file configuration list pagination. */
    @Resource
    private FileConfigPager fileConfigPager;

    /** Service for role type operations. */
    @Resource
    private RoleTypeService roleTypeService;

    /** Service for label type operations. */
    @Resource
    private LabelTypeService labelTypeService;

    //                                                                           =========
    @Resource
    private FailureUrlService failureUrlService;
    @Resource
    private FailureUrlPager failureUrlPager;
    /** Helper for managing crawler processes */
    @Resource
    protected ProcessHelper processHelper;

    // ===================================================================================

    }

    /**
     * Searches for all resources with the specified name from the context class loader.
     *
     * @param name
     *            The resource name. Must not be {@literal null} or an empty string.
     * @return An iterator of URL objects for the resources. If no resources are found, the iterator will be empty.
     *         Resources that the class loader does not have access to will not be included.