認証コード

@AuthorizationCode(
    authorizationUrl = "https://login.salesforce.com/services/oauth2/authorize",
    accessTokenUrl = "https://login.salesforce.com/services/oauth2/token")
public class SalesforceOAuthConnectionProvider<C> implements ConnectionProvider<SalesforceClient> {

   @Parameter
   @Optional(defaultValue = "34.0")
   private Double apiVersion;

  /**
   * Tailors the login page to the user's device type.
   */
  @OAuthParameter
  private String display;

  /**
   * Avoid interacting with the user
   */
  @OAuthParameter
  @Optional(defaultValue = "false")
  private boolean immediate;

  /**
   * Specifies how the authorization server prompts the user for reauthentication and reapproval
   */
  @OAuthParameter
  @Optional(defaultValue = "true")
  private boolean prompt;

  @OAuthCallbackValue(expression = "#[payload.instance_url]")
  private String instanceId;

  @OAuthCallbackValue(expression = "#[payload.id]")
  private String userId;

  private AuthorizationCodeState state;

  @Override
  public SalesforceClient connect() throws ConnectionException {
    if (state.getAccessToken() == null) {
      throw new SalesforceException(MessageFormat.format(COULD_NOT_EXTRACT_FIELD, "accessToken"));
    }

    if (instanceId == null) {
      throw new SalesforceException(MessageFormat.format(COULD_NOT_EXTRACT_FIELD, "instanceId"));
    }

    return new SalesforceClient(state, instanceId, apiVersion); (1)
  }

  public void disconnect(SalesforceClient connection) {
    connection.close();
  }

  @Override
  public ConnectionValidationResult validate(SalesforceClient connection) {
    return success();
  }
}
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public @interface AuthorizationCode {

  /**
   * @return The Url of the endpoint which provides the access tokens
   */
  String accessTokenUrl();

  /**
   * @return The url of the authorization endpoint which starts the OAuth dance
   */
  String authorizationUrl();

  /**
   * @return Expression to be used on the response of {@link #accessTokenUrl()} to extract the access token
   */
  String accessTokenExpr() default "#[payload.access_token]";

  /**
   * @return Expression to be used on the response of {@link #accessTokenUrl()} to extract the access token expiration
   */
  String expirationExpr() default "#[payload.expires_in]";

  /**
   * @return Expression to be used on the response of {@link #accessTokenUrl()} to extract the refresh token
   */
  String refreshTokenExpr() default "#[payload.refresh_token]";

  /**
   * @return The default set of scopes to be requested, as a comma separated list. Empty string means no default scopes.
   */
  String defaultScopes() default "";
}
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public interface AuthorizationCodeState {

  /**
   * @return The obtained access token
   */
  String getAccessToken();

  /**
   * @return The obtained refresh token
   */
  Optional<String> getRefreshToken();

  /**
   * @return The id of the user that was authenticated
   */
  String getResourceOwnerId();

  /**
   * @return The access token's expiration. The actual format of it depends on the OAuth provider
   */
  Optional<String> getExpiresIn();

  /**
   * @return The OAuth state that was originally sent
   */
  Optional<String> getState();

  /**
   * @return The url of the authorization endpoint that was used in the authorization process
   */
  String getAuthorizationUrl();

  /**
   * @return The url of the access token endpoint that was used in the authorization process
   */
  String getAccessTokenUrl();

  /**
   * @return The OAuth consumer key that was used in the authorization process
   */
  String getConsumerKey();

  /**
   * @return The OAuth consumer secret that was used in the authorization process
   */
  String getConsumerSecret();

  /**
   * @return The external callback url that the user configured or {@link Optional#empty()} if none was provided
   */
  Optional<String> getExternalCallbackUrl();

  /**
   * Customizes the placement of the client credentials in the request.
   *
   * @Since 1.4
   *
   * @return the selected {@link CredentialsPlacement}. Defaults to {@link CredentialsPlacement#BODY}.
   */
  CredentialsPlacement credentialsPlacement() default BODY;

  /**
   * Whether the redirect_uri parameter should be included in the refresh token request. Defaults to {@code true}
   *
   * @since 1.4.0
   */
  boolean includeRedirectUriInRefreshTokenRequest() default true;
}
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