* @param page The HTML page
     * @return The base path for the virtual host
     */
    protected String getVirtualHostBasePath(final String s, final HtmlNext page) {
        return StringUtil.isBlank(s) ? StringUtil.EMPTY : "/" + s;
    }

    /**
     * Gets the virtual host key from the current request.
     * The key is determined by matching HTTP headers against configured virtual hosts.
     *

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.opensearch.config.exentity;

import java.util.Map;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.exception.JobNotFoundException;
import org.codelibs.fess.opensearch.config.bsentity.BsScheduledJob;
import org.codelibs.fess.util.ComponentUtil;

        assertEquals("Empty maxKey should be empty string", "", emptyKeysAnnotation.maxKey());
        assertTrue("Empty minKey should match StringUtil.EMPTY", StringUtil.EMPTY.equals(emptyKeysAnnotation.minKey()));
        assertTrue("Empty maxKey should match StringUtil.EMPTY", StringUtil.EMPTY.equals(emptyKeysAnnotation.maxKey()));
    }

    // Test annotation with multiple groups and payloads
    @Test

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.text.DecimalFormatUtil;

/**
 * Utility class for conversions related to {@link Float}.
 *
 * @author higa
 */
public abstract class FloatConversionUtil {

    /**

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.text.DecimalFormatUtil;

/**
 * Utility class for conversions related to {@link Integer}.
 *
 * @author higa
 */
public abstract class IntegerConversionUtil {

    /**

        final String url = DocumentUtil.getValue(doc, fessConfig.getIndexFieldThumbnail(), String.class);
        if (StringUtil.isBlank(form.queryId) || StringUtil.isBlank(url) || !thumbnailSupport) {
            // 404
            throw responseManager.new404("Thumbnail for " + form.docId + " is not found.");
        }

 * governing permissions and limitations under the License.
 */
package org.codelibs.core.convert;

import java.text.SimpleDateFormat;

import org.codelibs.core.lang.StringUtil;
import org.codelibs.core.text.DecimalFormatUtil;

/**
 * Utility class for conversions related to {@link Double}.
 *
 * @author higa
 */
public abstract class DoubleConversionUtil {

    /**

                    }
                    String virtualHost = keyMatch.getVirtualHost();
                    if (StringUtil.isBlank(virtualHost)) {
                        virtualHost = StringUtil.EMPTY;
                    }
                    Map<String, List<Tuple3<String, QueryBuilder, ScoreFunctionBuilder<?>>>> queryMap = keyMatchQueryMap.get(virtualHost);

                return false;
            }

            @Override
            public String getHttpProxyHost() {
                return StringUtil.EMPTY;
            }

            @Override
            public String getHttpProxyPort() {
                return StringUtil.EMPTY;
            }
        };
        ComponentUtil.setFessConfig(fessConfig);
        SystemHelper systemHelper = new SystemHelper() {

            return;
        }

        final Method httpMethod = Method.valueOf(request.getMethod().toUpperCase(Locale.ROOT));
        final CurlRequest curlRequest = ComponentUtil.getCurlHelper().request(httpMethod, path);

        final String contentType = request.getHeader("Content-Type");
        if (StringUtil.isNotEmpty(contentType)) {