code: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.
   *
   */
  
  package org.apache.skywalking.oap.server.starter;
  
  import com.fasterxml.jackson.core.JsonParser;
  import com.fasterxml.jackson.databind.JsonNode;
  import com.fasterxml.jackson.databind.ObjectMapper;
  import org.apache.skywalking.oap.server.core.management.ui.template.UITemplateInitializer;
  import org.apache.skywalking.oap.server.library.util.ResourceUtils;
  import org.apache.skywalking.oap.server.library.util.StringUtil;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.Test;
  
  import java.io.File;
  import java.io.IOException;
  import java.util.HashSet;
  import java.util.Locale;
  import java.util.Set;
  
  /**
   * @since 9.0.0 SkyWalking migrate to skywalking-booster-ui, the configs are changed. This test verifies whether the
   * config files are legal, otherwise would fail, in order to block the merge.
   */
  public class UITemplateCheckerTest {
      @Test
      public void validateUITemplate() throws IOException {
          ObjectMapper mapper = new ObjectMapper();
          mapper.enable(JsonParser.Feature.ALLOW_COMMENTS);
          Set<String> dashboardIds = new HashSet<>();
          Set<String> dashboardNames = new HashSet<>();
          for (String folder : UITemplateInitializer.UI_TEMPLATE_FOLDER) {
              File[] templateFiles = ResourceUtils.getPathFiles("ui-initialized-templates/" + folder.toLowerCase(
                  Locale.ROOT));
              for (File template : templateFiles) {
                  JsonNode jsonNode = mapper.readTree(template);
                  if (jsonNode == null || jsonNode.size() == 0) {
                      continue;
                  }
                  if (jsonNode.size() > 1) {
                      throw new IllegalArgumentException(
                          "File:  " + template.getName() + " should be only one dashboard setting json object.");
                  }
  
                  JsonNode configNode = jsonNode.get(0).get("configuration");
                  String inId = jsonNode.get(0).get("id").textValue();
                  String inName = configNode.get("name").textValue();
                  String inLayer = configNode.get("layer").textValue();
                  String inEntity = configNode.get("entity").textValue();
                  Assertions.assertFalse(dashboardIds.contains(inId), "File: " + template + " has duplicate id: " + inId);
                  dashboardIds.add(inId);
                  String nameKey = StringUtil.join('_', inLayer, inEntity, inName);
                  Assertions.assertFalse(dashboardNames.contains(nameKey), "File:" + template + " has duplicate name: " + inName);
                  dashboardNames.add(nameKey);
  
                  //Todo: implement more validation.
              }
          }
      }
  }
  