try {
            return XContentHelper.toXContent(xContent, mediaType, ToXContent.EMPTY_PARAMS, false).utf8ToString();
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Functional interface for building XContent with custom logic.

        assertNotNull(outputStream);
        assertTrue(outputStream instanceof ByteArrayOutputStream);
    }

    public void test_getXContentOutputStream_withException() {
        ToXContent xContent = new ToXContent() {
            @Override
            public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {

import org.codelibs.fess.util.ComponentUtil;
import org.opensearch.action.admin.cluster.node.stats.NodesStatsResponse;
import org.opensearch.common.xcontent.XContentFactory;
import org.opensearch.core.xcontent.ToXContent;
import org.opensearch.core.xcontent.XContentBuilder;
import org.opensearch.monitor.jvm.JvmStats;
import org.opensearch.monitor.jvm.JvmStats.BufferPool;
import org.opensearch.monitor.jvm.JvmStats.Classes;

    public void visit(final QueryBuilderVisitor visitor) {
        queryBuilder.visit(visitor);
    }

    @Override
    public XContentBuilder toXContent(final XContentBuilder builder, final Params params) throws IOException {
        return queryBuilder.toXContent(builder, params);
    }

    @Override
    public void writeTo(final StreamOutput out) throws IOException {
        queryBuilder.writeTo(out);
    }

import org.opensearch.core.ParseField;
import org.opensearch.core.common.io.stream.NamedWriteable;
import org.opensearch.core.common.io.stream.StreamOutput;
import org.opensearch.core.xcontent.ObjectParser;
import org.opensearch.core.xcontent.XContentBuilder;
import org.opensearch.core.xcontent.XContentParser;
import org.opensearch.index.query.AbstractQueryBuilder;
import org.opensearch.index.query.QueryBuilder;
import org.opensearch.index.query.QueryShardContext;

        assertEquals("output", item.getOutput());
    }

    // Helper method to write content to test file
    private void writeTestFile(String content) throws IOException {
        Writer writer = null;
        try {
            writer = new OutputStreamWriter(new FileOutputStream(testFile), Constants.UTF_8);
            writer.write(content);
            writer.flush();
        } finally {

        Map<String, List<String>> headers = new HashMap<>();
        headers.put("Content-Type", Arrays.asList("application/json"));
        headers.put("Content-Length", Arrays.asList("100"));
        response.setHeaders(headers);

        String contentType = response.getHeaderValue("Content-Type");
        String contentLength = response.getHeaderValue("content-length"); // Test case insensitive

        return this;
    }

    public void setContent_Equal(String content) {
        setContent_Term(content, null);
    }

    public void setContent_Equal(String content, ConditionOptionCall<TermQueryBuilder> opLambda) {
        setContent_Term(content, opLambda);
    }

    public void setContent_Term(String content) {
        setContent_Term(content, null);
    }

import jakarta.annotation.PostConstruct;

/**
 * Helper class for managing related content configurations.
 * This class provides functionality to load, cache, and retrieve related content
 * based on search queries and virtual host configurations. It supports both exact
 * term matching and regex pattern matching for flexible content association.
 */
public class RelatedContentHelper extends AbstractConfigHelper {

    /**

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.