content: /**
   * 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.ambari.view;
  
  import org.junit.Test;
  
  import javax.xml.XMLConstants;
  import javax.xml.transform.stream.StreamSource;
  import javax.xml.validation.Schema;
  import javax.xml.validation.SchemaFactory;
  import java.io.File;
  import java.util.LinkedList;
  import java.util.List;
  
  /**
   * view.xml related tests.
   */
  public class ViewXmlTest {
  
    @Test
    public void testValidateViewXmls() throws Exception {
  
      List<File> viewXmlFiles = new LinkedList<File>();
  
      File ambariViewsDir = new File("."); //ambari-views
      File xsdFile        = new File("./target/classes/view.xsd");
  
      // validate each of the view.xml files under ambari-views
      for (File file : getViewXmlFiles(viewXmlFiles, ambariViewsDir.listFiles())) {
        validateViewXml(file, xsdFile);
      }
    }
  
    private List<File> getViewXmlFiles(List<File> viewXmlFiles, File[] files) throws Exception{
  
      if (files != null) {
        for (File file : files) {
          if (file.isDirectory()) {
            getViewXmlFiles(viewXmlFiles, file.listFiles());
          } else {
            String absolutePath = file.getAbsolutePath();
  
            if (absolutePath.endsWith("/src/main/resources/view.xml")) {
              viewXmlFiles.add(file);
            }
          }
        }
      }
      return viewXmlFiles;
    }
  
    private void validateViewXml(File xmlFile, File xsdFile) throws Exception {
      SchemaFactory schemaFactory = SchemaFactory.newInstance(XMLConstants.W3C_XML_SCHEMA_NS_URI);
  
      Schema schema = schemaFactory.newSchema(xsdFile);
  
      schema.newValidator().validate(new StreamSource(xmlFile));
    }
  }
  