import org.opensearch.monitor.process.ProcessProbe;

import jakarta.annotation.Resource;

/**
 * This class is a command-line application for creating and managing the suggest index.
 * It provides functionality to index words from documents and search logs, as well as
 * to purge old suggest data.
 */
public class SuggestCreator {

    /**
     * Constructs a new suggest creator.
     */

 * custom data transformation and enrichment during the crawling process.
 *
 * <p>It supports pluggable ingesters that can modify the result data
 * before it is stored in the search index.</p>
 */
public class FessResponseProcessor extends DefaultResponseProcessor {
    /**
     * Default constructor.
     */
    public FessResponseProcessor() {
        super();
    }

}
```

**Logging with Context:**
```java
if (logger.isInfoEnabled()) {
    logger.info("Creating suggest index: index={}, searchAlias={}, updateAlias={}",
                indexName, getSearchAlias(index), getUpdateAlias(index));
}
```

**Exception Handling:**
```java
try {
    converter.init();
} catch (Exception e) {

  /**
   * Returns the stripe at the specified index. Valid indexes are 0, inclusively, to {@code size()},
   * exclusively.
   *
   * @param index the index of the stripe to return; must be in {@code [0...size())}
   * @return the stripe at the specified index
   */
  public abstract L getAt(int index);

  /**
   * Returns the index to which the given key is mapped, so that getAt(indexFor(key)) == get(key).

  var index = 0
  val result = mutableListOf<Mapping>()

  while (index < mappings.size) {
    val mapping = mappings[index]
    val type = canonicalizeType(mapping.type)
    val mappedTo = mapping.mappedTo

    var unionWith: Mapping = mapping
    index++

    while (index < mappings.size) {
      val next = mappings[index]

    sink: BufferedSink,
  ): Boolean {
    val index =
      mappings.binarySearch {
        when {
          it.sourceCodePoint1 < codePoint -> -1
          it.sourceCodePoint0 > codePoint -> 1
          else -> 0
        }
      }

    // Code points must be in 0..0x10ffff.
    require(index in mappings.indices) { "unexpected code point: $codePoint" }

    val mapping = mappings[index]
    var result = true

    //                                                                      ==============
    /**
     * Show the index page.
     * @param form The search form.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE, ROLE + VIEW })
    public HtmlResponse index(final SearchForm form) {
        validate(form, messages -> {}, this::asDictIndexHtml);
        charMappingPager.clear();

  }

  @Override
  public @Nullable V get(@Nullable Object key) {
    Map<K, V> delegate = delegateOrNull();
    if (delegate != null) {
      return delegate.get(key);
    }
    int index = indexOf(key);
    if (index == -1) {
      return null;
    }
    accessEntry(index);
    return value(index);
  }

  @CanIgnoreReturnValue

 * This class manages the process of updating the search index with documents from
 * data stores, including bulk operations, document transformation, and error handling.
 */
public class IndexUpdateCallbackImpl implements IndexUpdateCallback {
    private static final Logger logger = LogManager.getLogger(IndexUpdateCallbackImpl.class);

    /**
     * Default constructor for index update callback implementation.

  }

  @Override
  public UnmodifiableListIterator<E> listIterator(int index) {
    return new AbstractIndexedListIterator<E>(size(), index) {
      @Override
      protected E get(int index) {
        return ImmutableList.this.get(index);
      }
    };
  }

  @Override
  public ImmutableList<E> asList() {
    return this;
  }

  @Override