throw new ExtractException("Failed to parse JSON content", e);
        }
    }

    /**
     * Recursively extracts content from JSON nodes.
     *
     * @param node the JSON node to extract from
     * @param parentKey the parent key path
     * @param textBuilder the string builder for text content
     * @param metadataMap the map for metadata extraction

    protected ExtractData createExtractData(final String content) {
        final DOMParser parser = getDomParser();
        try (final Reader reader = new StringReader(content)) {
            parser.parse(new InputSource(reader));
        } catch (final Exception e) {
            logger.warn("Failed to parse the content.", e);
            return new ExtractData(extractString(content));
        }

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.suggest.index.contents;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import org.apache.logging.log4j.LogManager;

<input name="files" type="file" multiple>
<input type="submit">
</form>
</body>
    """

import org.dbflute.cbean.result.PagingResultBean;
import org.dbflute.optional.OptionalEntity;

import jakarta.annotation.Resource;

/**
 * Service class for managing related content entities.
 * This service provides CRUD operations for related content, including
 * retrieval, storage, deletion, and search functionality.
 */
public class RelatedContentService extends FessAppService {

    /**
     * Default constructor.

 * governing permissions and limitations under the License.
 */
package org.codelibs.fess.suggest.index.contents.document;

import java.io.Closeable;
import java.util.Map;

/**
 * Interface for reading documents and extracting their contents into a map.
 * Implementations of this interface should provide the logic for reading
 * documents and converting them into a key-value structure.
 *

        // Test constructor with content
        String content = "Test content";
        ExtractData data = new ExtractData(content);

        assertNotNull(data);
        assertEquals(content, data.getContent());
        assertNotNull(data.getKeySet());
        assertTrue(data.getKeySet().isEmpty());
    }

    public void test_contentGetterSetter() {
        // Test content getter/setter

<input name="files" type="file" multiple>
<input type="submit">
</form>
</body>
    """

S3-Kms-Sealed-Key":"IAAfAJjZ2dY7iCAom9rP/UK/5mmg/gpSloOs8Xjy5gYKtTDfL==","X-Minio-Internal-Server-Side-Encryption-S3-Sealed-Key":"IAAfAN+0R4CsC3ibYvamkvm9KIg+hidIQ==","X-Minio-Internal-Server-Side-Encryption-Seal-Algorithm":"DAREv2-HMAC-SHA256","content-type":"text/plain"}},{"Bucket":"buck1","Name":"go_113/src/cmd/go/testdata/mod/rsc.io_breaker_v1.0.0.txt","UserDef":{"X-Minio-Internal-Server-Side-Encryption-Iv":"HaaoKKQdysUQRnLF1tKF+a0BiM=","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id"...

 * and cache file size to optimize the extraction process.
 *
 * <p>
 * The main purpose of this class is to simplify the extraction process by providing a fluent interface
 * for configuring the extraction parameters and handling the underlying complexities of content processing,
 * such as MIME type detection, extractor selection, and content length validation.
 * </p>
 *
 * <p>