} catch (final IOException e) {
            throw new ExtractException("Could not extract a content.", e);
        } finally {
            FileUtil.deleteInBackground(inputFile);
            FileUtil.deleteInBackground(outputFile);
        }
    }

    String getFileName(final String resourceName) {
        final String name = resourceName.replaceAll("/+$", "");
        final int pos = name.lastIndexOf('/');

package org.codelibs.fess.crawler.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;

import org.codelibs.core.io.FileUtil;

/**
 * A custom InputStream that wraps a temporary file. This class ensures that the temporary file
 * is deleted when the stream is closed.
 */
public class TemporaryFileInputStream extends InputStream {

 */
package org.codelibs.fess.crawler.util;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;

import org.codelibs.core.io.CopyUtil;
import org.codelibs.core.io.FileUtil;
import org.codelibs.fess.crawler.entity.ResponseData;
import org.codelibs.fess.crawler.exception.CrawlingAccessException;

/**
 * Utility class for handling response data.
 */
public final class ResponseDataUtil {

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Map;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.FileUtil;
import org.codelibs.curl.CurlResponse;
import org.codelibs.fess.Constants;
import org.codelibs.fess.util.ComponentUtil;
import org.codelibs.opensearch.runner.net.OpenSearchCurl;
import org.dbflute.optional.OptionalEntity;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.io.FileUtil;
import org.codelibs.core.log.Logger;
import org.codelibs.core.net.URLUtil;

/**
 * Utility class for handling {@link java.util.zip.ZipFile}.
 *
 * @author higa
 */
public abstract class ZipFileUtil {

import java.net.URL;
import java.net.URLConnection;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;

import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.io.FileUtil;
import org.codelibs.core.log.Logger;
import org.codelibs.core.net.JarURLConnectionUtil;
import org.codelibs.core.net.URLUtil;

/**
 * Utility class for handling {@link java.util.jar.JarFile}.
 *
 * @author higa

            assertEquals('t', stream.read());
            assertEquals('a', stream.read());
            assertEquals(-1, stream.read()); // EOF
        }

        // File should be deleted after close
        // Note: FileUtil.deleteInBackground() is async, so we can't reliably test this
    }

    public void test_available() throws Exception {
        // Create a temporary file with test data

import java.util.List;
import java.util.Locale;

import org.apache.commons.io.FileUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.FileUtil;
import org.codelibs.core.io.ResourceUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.misc.Pair;
import org.codelibs.fess.Constants;
import org.codelibs.fess.annotation.Secured;

import java.util.Date;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.Map;
import java.util.Set;

import org.codelibs.core.exception.IORuntimeException;
import org.codelibs.core.io.FileUtil;
import org.codelibs.fess.crawler.Constants;

/**
 * Represents the response data obtained from a crawled resource.
 * This class encapsulates various details of an HTTP response, including

import java.util.Set;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.CloseableUtil;
import org.codelibs.core.io.CopyUtil;
import org.codelibs.core.io.FileUtil;
import org.codelibs.core.io.InputStreamUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.timer.TimeoutManager;
import org.codelibs.core.timer.TimeoutTask;
import org.codelibs.fess.crawler.Constants;