import org.codelibs.core.exception.IORuntimeException;

/**
 * Utility class for {@link InputStream}.
 *
 * @author higa
 */
public abstract class InputStreamUtil {

    /**
     * Do not instantiate.
     */
    protected InputStreamUtil() {
    }

    /** Default buffer size. */
    private static final int BUF_SIZE = 4096;

    /**
     * Creates a {@link FileInputStream}.
     *

                        return new String(InputStreamUtil.getBytes(is), Constants.UTF_8);
                    } catch (IOException e) {
                        throw new IORuntimeException(e);
                    }
                } else if (url.contains("plugin/repo2")) {
                    try (InputStream is = ResourceUtil.getResourceAsStream(url)) {
                        return new String(InputStreamUtil.getBytes(is), Constants.UTF_8);

    public void testGetBytes() throws Exception {
        final InputStream is = ResourceUtil.getResourceAsStream(StringUtil.replace(getClass().getName(), ".", "/") + ".class");
        try {
            assertNotNull("1", InputStreamUtil.getBytes(is));
        } finally {
            is.close();
        }
    }

     * @return A byte array containing the contents of the file.
     */
    public static byte[] readBytes(final File file) {
        assertArgumentNotNull("file", file);

        final FileInputStream is = InputStreamUtil.create(file);
        try {
            final FileChannel channel = is.getChannel();
            final ByteBuffer buffer = ByteBuffer.allocate((int) ChannelUtil.size(channel));

 */
package org.codelibs.fess.helper;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import org.codelibs.core.io.InputStreamUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.unit.UnitFessTestCase;
import org.codelibs.fess.util.ComponentUtil;

                final String filePath = FileUtil.getCanonicalPath(file);
                final String resourcePath = filePath.substring(pos + 1).replace('\\', '/');
                final InputStream is = InputStreamUtil.create(file);
                try {
                    handler.processResource(resourcePath, is);
                } finally {
                    CloseableUtil.close(is);
                }
            }

Properties props = PropertiesUtil.load(resource);

// File operations with proper resource handling
try (InputStream input = ResourceUtil.getResourceAsStream("data.txt")) {
    String content = InputStreamUtil.getUTF8String(input);
}

// Resource traversal for processing multiple files
ResourceTraversalUtil.forEach("META-INF", (resource, is) -> {
    // Process each resource in the META-INF directory

import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathNodes;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.io.InputStreamUtil;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.misc.Pair;
import org.codelibs.core.misc.ValueHolder;
import org.codelibs.fess.Constants;
import org.codelibs.fess.crawler.builder.RequestDataBuilder;

     */
    public static int copy(final File in, final OutputStream out) {
        assertArgumentNotNull("in", in);
        assertArgumentNotNull("out", out);

        final FileInputStream is = InputStreamUtil.create(in);
        try {
            if (out instanceof FileOutputStream) {
                return copyInternal(is, (FileOutputStream) out);
            }
            return copyInternal(is, wrap(out));