# CLAUDE.md

This file provides guidance to Claude Code when working with this repository.

## Project Overview

Fess is an Enterprise Search Server built on OpenSearch. It's a Java-based web application that crawls and indexes documents from various sources and provides full-text search capabilities.

## Development Commands

### Setup
```bash
# Download OpenSearch plugins (required before first build)
mvn antrun:run

 * the number of total, document, and query words.
 */
public class SuggestBody extends SuggestForm {
    /**
     * Constructs a new suggest body.
     */
    public SuggestBody() {
        // do nothing
    }

    /** The total number of words in the suggest index. */
    public Long totalWordsNum;

    /** The number of words from documents. */
    public Long documentWordsNum;

 * as well as the alt and title attributes.
 * </p>
 * <p>
 * The class uses {@link DOMParser} to parse HTML documents and {@link XPathAPI} to execute XPath queries.
 * It also provides methods to add custom features and properties to the {@link DOMParser}.
 * </p>
 * <p>

o conditionBeanMap.dfprop
o dependencyInjectionMap.dfprop
o littleAdjustmentMap.dfprop
o outsideSqlMap.dfprop
o sequenceMap.dfprop

Properties for ReplaceSchema:
o replaceSchemaMap.dfprop

Properties for documents:
o documentMap.dfprop

Properties for non-functional adjustments:
o sourceCopyright.dfprop
o infraMap.dfprop (manual making)

Properties for plug-ins:
o freeGenMap.dfprop (manual making)

    public String handlerScript;

    /** Boost value for documents from this data source */
    @Required
    @ValidateTypeFailure
    public Float boost;

    /** Whether this configuration is enabled (true/false) */
    @Required
    @Size(max = 5)
    public String available;

    /** Access permissions for documents from this data source */
    @CustomSize(maxKey = "form.admin.max.input.size")

TODO*
documents
coverage.txt
_book
.idea
vendor

  /**
   * As described in <a href="http://www.ietf.org/rfc/rfc3023.txt">RFC 3023</a>, this constant
   * ({@code text/xml}) is used for XML documents that are "readable by casual users." {@link
   * #APPLICATION_XML_UTF_8} is provided for documents that are intended for applications.
   */
  public static final MediaType XML_UTF_8 = createConstantUtf8(TEXT_TYPE, "xml");

  /**

        return this;
    }

    /**
     * Deletes documents matching the specified query using scroll and bulk delete.
     *
     * @param index The index to delete from.
     * @param type The document type (deprecated, no longer used).
     * @param queryBuilder The query to match documents for deletion.
     * @return The number of deleted documents.
     * @throws OpenSearchAccessException if the deletion fails.

 * and reduces code duplication across strategy implementations.
 *
 * <p>Strategies work with domtrip Documents for perfect formatting preservation.
 * Subclasses can create domtrip Editors from Documents as needed:
 * <pre>
 * Editor editor = new Editor(document);
 * // ... perform domtrip operations ...
 * // Document is automatically updated
 * </pre>
 */
public abstract class AbstractUpgradeStrategy implements UpgradeStrategy {

Directory for auto-generated documents