public interface ToolchainPrivate extends Toolchain {

    /**
     * Let the toolchain decide if it matches requirements defined
     * in the toolchain plugin configuration.
     * @param requirements Map<String, String> key value pair, may not be {@code null}
     * @return {@code true} if the requirements match, otherwise {@code false}
     */
    boolean matchesRequirements(Map<String, String> requirements);

    /**
     *

   * waited for other threads to finish loading. It is thus the case that {@code missCount >=
   * loadSuccessCount + loadExceptionCount}. Multiple concurrent misses for the same key will result
   * in a single load operation.
   */
  public double missRate() {
    long requestCount = requestCount();
    return (requestCount == 0) ? 0.0 : (double) missCount / requestCount;
  }

  /**

		return auth.Credentials{}, s3Err
	}

	r := &http.Request{Header: formValues}
	cred, _, s3Err := checkKeyValid(r, credHeader.accessKey)
	if s3Err != ErrNone {
		return cred, s3Err
	}

	// Get signing key.
	signingKey := getSigningKey(cred.SecretKey, credHeader.scope.date, credHeader.scope.region, serviceS3)

	// Get signature.
	newSignature := getSignature(signingKey, formValues.Get("Policy"))

	// Verify signature.

                return queryType;
            }

            // Delegate all other methods to base config
            @Override
            public String get(String key) {
                return baseConfig.get(key);
            }

            @Override
            public String getIndexFieldTitle() {
                return baseConfig.getIndexFieldTitle();
            }

            @Override

* The *path* can contain an <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md#key-expression" class="external-link" target="_blank">OpenAPI 3 expression</a> (see more below) where it can use variables with parameters and parts of the original request sent to *your API*.

### A expressão do caminho do callback

        // parameters
        for (final Map.Entry<String, String> entry : paramMap.entrySet()) {
            final String key = entry.getKey();
            if (key.startsWith(CRAWLER_PARAM_PREFIX)) {
                factoryParamMap.put(key.substring(CRAWLER_PARAM_PREFIX.length()), entry.getValue());
            }
        }

        // user agent

                Artifact artifact, ArtifactRepository localRepository, List<ArtifactRepository> remoteRepositories)
                throws ArtifactMetadataRetrievalException {
            String key = getKey(artifact);

            ArtifactSpec a = artifacts.get(key);
            try {
                return new ResolutionGroup(
                        artifact,
                        createArtifacts(

     * Stores a document in the search index with the specified parameters and data.
     *
     * @param paramMap the data store parameters containing configuration and metadata
     * @param dataMap the document data to be indexed as key-value pairs
     */
    void store(DataStoreParams paramMap, Map<String, Object> dataMap);

    /**
     * Returns the total number of documents processed by this callback.
     *
     * @return the document count

  public int hashCode() {
    K k = getKey();
    V v = getValue();
    return ((k == null) ? 0 : k.hashCode()) ^ ((v == null) ? 0 : v.hashCode());
  }

  /** Returns a string representation of the form {@code {key}={value}}. */
  @Override
  public String toString() {
    return getKey() + "=" + getValue();
  }