# Зависимости

**FastAPI** имеет очень мощную и интуитивную систему **<abbr title="also known as components, resources, providers, services, injectables">Dependency Injection</abbr>**.

Она проектировалась таким образом, чтобы быть простой в использовании и облегчить любому разработчику интеграцию других компонентов с **FastAPI**.

## Что такое "Dependency Injection" (инъекция зависимости)

import org.codelibs.fess.crawler.exception.CrawlerSystemException;

/**
 * <p>
 * FileTransformer stores the content of a crawled resource as a file on the file system.
 * It extends HtmlTransformer and provides functionality to:
 * </p>
 * <ul>
 *     <li>Specify a base directory for storing files.</li>
 *     <li>Generate file paths from URLs, replacing special characters.</li>

          responseBuilder
        }
        else -> {
          state = STATE_OPEN_RESPONSE_BODY
          responseBuilder
        }
      }
    } catch (e: EOFException) {
      // Provide more context if the server ends the stream before sending a response.
      val address =
        carrier.route.address.url
          .redact()
      throw IOException("unexpected end of stream on $address", e)
    }

/**
 * Manages a dictionary file for stopwords.
 * This class handles reading, parsing, and updating files that contain
 * a list of stopwords. Each line in the file represents a single stopword.
 *
 * The class provides methods for retrieving, adding, updating, and
 * deleting stopword items, as well as reloading the dictionary
 * from its source file.
 */
public class StopwordsFile extends DictionaryFile<StopwordsItem> {

import org.codelibs.fess.helper.RelatedQueryHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;

/**
 * A utility class for building query strings with proper escaping and parameters.
 * This class provides methods to construct search queries from various parameters,
 * handle special characters, and format the final query string for search operations.
 */
public class QueryStringBuilder {

import java.io.UnsupportedEncodingException;
import java.util.HashMap;

import jcifs.smb1.util.Encdec;

/**
 * NDR (Network Data Representation) buffer for encoding and decoding DCE/RPC messages.
 * This class provides methods for reading and writing primitive types and strings
 * in NDR format for DCE/RPC communication.
 */
public class NdrBuffer {
    int referent;
    HashMap referents;

    static class Entry {

 * A response list that extends List functionality and includes pagination and search metadata.
 * This class wraps search results with pagination information, facet responses, and query statistics.
 * It implements the List interface to provide standard list operations while adding search-specific
 * functionality such as page navigation, record counts, and query execution times.
 */
public class QueryResponseList implements List<Map<String, Object>> {

// https://www.iana.org/domains/root/db/pid.html
pid

// pin : Amazon Registry Services, Inc.
// https://www.iana.org/domains/root/db/pin.html
pin

// ping : Ping Registry Provider, Inc.
// https://www.iana.org/domains/root/db/ping.html
ping

// pink : Identity Digital Limited
// https://www.iana.org/domains/root/db/pink.html
pink

// pioneer : Pioneer Corporation

    expectContents(asList(elements));
  }

  /**
   * Asserts that the collection under test contains exactly the given elements, respecting
   * cardinality but not order. Subclasses may override this method to provide stronger assertions,
   * e.g., to check ordering in lists, but realize that <strong>unless a test extends {@link
   * com.google.common.collect.testing.testers.AbstractListTester AbstractListTester}, a call to

func (sys *NotificationSys) StartProfiling(ctx context.Context, profiler string) []NotificationPeerErr {
	ng := WithNPeers(len(sys.peerClients))
	for idx, client := range sys.peerClients {
		if client == nil {
			continue
		}
		client := client
		ng.Go(ctx, func() error {
			return client.StartProfiling(ctx, profiler)
		}, idx, *client.host)
	}
	return ng.Wait()
}