import java.util.function.Consumer;

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

/**
 * A thread that reads from an input stream line by line and maintains a buffer of recent lines.
 * This class provides functionality to read input stream data asynchronously,
 * optionally process each line with a callback function, and maintain a circular buffer
 * of recent lines for retrieval.
 */

  }

  /**
   * Concatenates multiple {@link ByteSource} instances into a single source. Streams returned from
   * the source will contain the concatenated data from the streams of the underlying sources.
   *
   * <p>Only one underlying stream will be open at a time. Closing the concatenated stream will
   * close the open underlying stream.
   *
   * @param sources the sources to concatenate

        body.permissions = stream(entity.getPermissions()).get(stream -> stream.map(s -> permissionHelper.decode(s))
                .filter(StringUtil::isNotBlank)
                .distinct()
                .collect(Collectors.joining("\n")));
        body.virtualHosts = stream(entity.getVirtualHosts())

  /**
   * Copies all bytes from the input stream to the output stream. Does not close or flush either
   * stream.
   *
   * <p><b>Java 9 users and later:</b> this method should be treated as deprecated; use the
   * equivalent {@link InputStream#transferTo} method instead.
   *
   * @param from the input stream to read from
   * @param to the output stream to write to
   * @return the number of bytes copied

            queryBuf.append(escapeQuery(query));
        }

        stream(params.getExtraQueries())
                .of(stream -> stream.filter(q -> StringUtil.isNotBlank(q) && q.length() <= maxQueryLength).forEach(q -> {
                    appendQuery(queryBuf, q);
                }));

        stream(params.getFields()).of(stream -> stream.forEach(entry -> {
            final String key = entry.getKey();

/**
 * MimeTypeHelper provides methods to determine the content type of a given input stream or file.
 * It allows content type detection based on the stream's content and/or filename.
 */
public interface MimeTypeHelper {
    /**
     * Determines the content type of the given input stream and filename.
     * @param is the input stream to analyze
     * @param filename the filename to help determine the content type

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.app.web.admin.labeltype;

import static org.codelibs.core.stream.StreamUtil.stream;

import java.util.stream.Collectors;
import java.util.stream.Stream;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;

  /**
   * A collector that converts a stream of zero or one elements to an {@code Optional}.
   *
   * @throws IllegalArgumentException if the stream consists of two or more elements.
   * @throws NullPointerException if any element in the stream is {@code null}.
   * @return {@code Optional.of(onlyElement)} if the stream has exactly one element (must not be

                final Set<String> permissionSet = new HashSet<>();
                permissionSet.add(systemHelper.getSearchRoleByUser(name));
                stream(groups).of(stream -> stream.forEach(s -> permissionSet.add(systemHelper.getSearchRoleByGroup(s))));
                stream(roles).of(stream -> stream.forEach(s -> permissionSet.add(systemHelper.getSearchRoleByRole(s))));
                permissions = permissionSet.toArray(new String[permissionSet.size()]);

    }

    /**
     * Method write.
     *
     * @param stream a stream object.
     * @param persistedToolchains a persistedToolchains object.
     * @throws IOException java.io.IOException if any.
     */
    public void write(OutputStream stream, PersistedToolchains persistedToolchains) throws IOException {
        try {
            delegate.write(stream, persistedToolchains.getDelegate());
        } catch (XMLStreamException e) {