content: /*
   * Copyright 2018-2024 adorsys GmbH & Co KG
   *
   * This program is free software: you can redistribute it and/or modify it
   * under the terms of the GNU Affero General Public License as published
   * by the Free Software Foundation, either version 3 of the License, or (at
   * your option) any later version. This program is distributed in the hope that
   * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
   * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   * See the GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with this program. If not, see https://www.gnu.org/licenses/.
   *
   * This project is also available under a separate commercial license. You can
   * contact us at sales@adorsys.com.
   */
  
  package de.adorsys.psd2.xs2a.web.filter;
  
  import de.adorsys.psd2.xs2a.web.error.TppErrorMessageWriter;
  import jakarta.servlet.FilterChain;
  import jakarta.servlet.ServletException;
  import jakarta.servlet.http.HttpServletRequest;
  import jakarta.servlet.http.HttpServletResponse;
  import org.jetbrains.annotations.NotNull;
  import org.springframework.web.client.ResourceAccessException;
  import org.springframework.web.filter.OncePerRequestFilter;
  
  import java.io.IOException;
  
  public abstract class GlobalAbstractExceptionFilter extends OncePerRequestFilter {
      private final TppErrorMessageWriter tppErrorMessageWriter;
  
      protected GlobalAbstractExceptionFilter(TppErrorMessageWriter tppErrorMessageWriter) {
          this.tppErrorMessageWriter = tppErrorMessageWriter;
      }
  
      //This method is final to prevent it's overriding in child classes. Please override doFilterInternalCustom instead.
      @Override
      protected final void doFilterInternal(@NotNull HttpServletRequest request, @NotNull HttpServletResponse response, @NotNull FilterChain filterChain) throws ServletException, IOException {
          try {
              doFilterInternalCustom(request, response, filterChain);
          } catch (ResourceAccessException e) {
              tppErrorMessageWriter.writeServiceUnavailableError(response, e.getMessage());
          }
      }
  
      protected abstract void doFilterInternalCustom(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException;
  }
  