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import java.io.IOException;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.cors.CorsHandler;
import org.codelibs.fess.cors.CorsHandlerFactory;
import org.codelibs.fess.util.ComponentUtil;

import jakarta.servlet.Filter;
import jakarta.servlet.FilterChain;
import jakarta.servlet.ServletException;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.cors;

import java.util.HashMap;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

/**
 * Factory for managing CORS handlers based on origin.
 * Maintains a registry of CORS handlers for different origins and provides lookup functionality.
 */
public class CorsHandlerFactory {

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.cors;

import jakarta.servlet.ServletRequest;
import jakarta.servlet.ServletResponse;

/**
 * Abstract base class for handling CORS (Cross-Origin Resource Sharing) requests.
 * Provides common CORS header constants and defines the processing interface.
 */
public abstract class CorsHandler {

    /**