content: package act.util;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * #L%
   */
  
  import act.Act;
  import org.osgl.http.H;
  import org.osgl.util.S;
  
  import static org.osgl.http.H.Format.*;
  
  public interface ErrorTemplatePathResolver {
      String resolve(int code, H.Format format);
  
      class DefaultErrorTemplatePathResolver implements ErrorTemplatePathResolver {
          @Override
          public String resolve(int code, H.Format fmt) {
              String suffix;
              if (JSON == fmt || HTML == fmt || XML == fmt) {
                  suffix = fmt.name();
              } else {
                  suffix = TXT.name();
              }
              return Act.isProd() || "json".equals(suffix) ? S.fmt("/error/e%s.%s", code, suffix) : S.fmt("/error/dev/e%s.%s", code, suffix);
          }
      }
  }
  