content: package act.apidoc.sampledata;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2018 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 act.apidoc.SampleDataProvider;
  import org.osgl.$;
  import org.osgl.util.C;
  import org.osgl.util.IO;
  import org.osgl.util.S;
  
  import java.net.URL;
  import java.util.List;
  
  public abstract class StringListProvider<T> extends SampleDataProvider<T> {
  
      private List<String> stringList;
  
      protected String listName() {
          String fileName = getClass().getSimpleName().toLowerCase();
          if (fileName.endsWith("provider")) {
              fileName = fileName.substring(0, fileName.length() - 8);
          }
          return fileName;
      }
  
      public StringListProvider() {
          if (Act.isProd()) {
              return;
          }
          String fileName = listName() + ".list";
          ClassLoader cl = Act.app().classLoader();
          URL url = cl.getResource("sampledata/" + fileName);
          if (null != url) {
              stringList = readUrl(url);
          } else {
              // try built-in resource
              url = cl.getResource("sampledata/~act/" + fileName);
              if (null != url) {
                  stringList = readUrl(url);
              } else {
                  warn("Cannot find the string list: " + fileName.toLowerCase() + ".list");
              }
          }
      }
  
      private List<String> readUrl(URL url) {
          return C.list(IO.read(url).toLines()).filter(S.F.NOT_BLANK);
      }
  
      protected String randomStr() {
          return null == stringList || stringList.isEmpty() ? S.random() : $.random(stringList);
      }
  }
  