/**
     * Preprocesses a URI to ensure it has the correct GCS protocol prefix.
     * @param uri the URI to preprocess
     * @return the preprocessed URI with gcs:// prefix
     * @throws CrawlerSystemException if the URI is empty
     */
    protected String preprocessUri(final String uri) {
        if (StringUtil.isEmpty(uri)) {

            // base href
            final String baseHref = getBaseHref(document);
            URI uri;
            try {
                uri = new URI(baseHref == null ? responseData.getUrl() : baseHref);
            } catch (final Exception e) {
                uri = new URI(responseData.getUrl());
            }
            final URI baseUri = uri;
            getChildUrlRules(responseData, resultData).forEach(entry -> {

    }

    /**
     * Preprocesses a URI to ensure it has the correct S3 protocol prefix.
     * @param uri the URI to preprocess
     * @return the preprocessed URI with s3:// prefix
     * @throws CrawlerSystemException if the URI is empty
     */
    protected String preprocessUri(final String uri) {
        if (StringUtil.isEmpty(uri)) {

    }

    /**
     * Preprocesses the URI before processing the request.
     *
     * @param uri the URI to preprocess
     * @return the preprocessed URI
     * @throws CrawlerSystemException if the URI is empty
     */
    protected String preprocessUri(final String uri) {
        if (StringUtil.isEmpty(uri)) {
            throw new CrawlerSystemException("SMB URI is empty. Please provide a valid SMB URI (smb://...).");

        } else if (urlStr.startsWith("//")) {
            value = "http:" + urlStr;
        } else {
            value = urlStr;
        }
        try {
            final URI uri = URI.create(value);
            final String host = uri.getHost();
            if (StringUtil.isBlank(host) || "http".equalsIgnoreCase(host) || "https".equalsIgnoreCase(host)) {
                return false;
            }

    }

    /**
     * Preprocesses the URI before processing the request.
     *
     * @param uri the URI to preprocess
     * @return the preprocessed URI
     * @throws CrawlerSystemException if the URI is empty
     */
    protected String preprocessUri(final String uri) {
        if (StringUtil.isEmpty(uri)) {
            throw new CrawlerSystemException("SMB1 URI is empty. Please provide a valid SMB1 URI (smb1://...).");

        // Test that accessTimeoutTask null check prevents NPE
        S3Client client = new S3Client() {
            @Override
            protected ResponseData processRequest(final String uri, final boolean includeContent) {
                // Skip init() and directly test timeout handling
                org.codelibs.fess.crawler.client.AccessTimeoutTarget accessTimeoutTarget = null;

    }

    /**
     * SAX event handler called when an XML start element is encountered.
     * Processes collection definitions and tracks the element hierarchy.
     *
     * @param uri the namespace URI, or empty string if none
     * @param localName the local name without prefix, or empty string if namespace processing is not performed

        // Test that accessTimeoutTask null check prevents NPE
        GcsClient client = new GcsClient() {
            @Override
            protected ResponseData processRequest(final String uri, final boolean includeContent) {
                // Skip init() and directly test timeout handling
                org.codelibs.fess.crawler.client.AccessTimeoutTarget accessTimeoutTarget = null;

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.net.protocol.s3;

import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLDecoder;
import java.net.URLStreamHandler;
import java.nio.charset.StandardCharsets;

import org.codelibs.core.lang.StringUtil;