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.cassandra.sidecar.common;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import java.nio.file.Files;
  import java.nio.file.Path;
  
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.fail;
  
  /**
   * A utilities class to handle resources for tests
   */
  public final class ResourceUtils
  {
      /**
       * Writes a resource with {@code resourceName} loaded from the {@link ClassLoader classLoader} into the
       * {@code destinationPath}
       *
       * @param classLoader     the class loader for the resource
       * @param destinationPath the destination path to write the file
       * @param resourceName    the name of the resource to be loaded
       * @return the {@link Path} to the created resource
       */
      public static Path writeResourceToPath(ClassLoader classLoader, Path destinationPath, String resourceName)
      {
          try
          {
              Path resourcePath = destinationPath.resolve(resourceName);
  
              // ensure parent directory is created
              Files.createDirectories(resourcePath.getParent());
  
              try (InputStream inputStream = classLoader.getResourceAsStream(resourceName);
                   OutputStream outputStream = Files.newOutputStream(resourcePath))
              {
                  assertThat(inputStream).isNotNull();
  
                  int length;
                  byte[] buffer = new byte[1024];
                  while ((length = inputStream.read(buffer)) != -1)
                  {
                      outputStream.write(buffer, 0, length);
                  }
              }
              return resourcePath;
          }
          catch (IOException exception)
          {
              String failureMessage = "Unable to create resource " + resourceName;
              fail(failureMessage, exception);
              throw new RuntimeException(failureMessage, exception);
          }
      }
  }
  