content: /*
   * Copyright © 2018-2025 Commonwealth Scientific and Industrial Research
   * Organisation (CSIRO) ABN 41 687 119 230.
   *
   * 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.
   */
  
  package au.csiro.pathling.test;
  
  import static au.csiro.pathling.utilities.Preconditions.check;
  import static java.nio.charset.StandardCharsets.UTF_8;
  import static java.util.Objects.requireNonNull;
  
  import jakarta.annotation.Nonnull;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.StringWriter;
  import java.net.URL;
  import java.util.Objects;
  import lombok.extern.slf4j.Slf4j;
  import org.apache.commons.io.IOUtils;
  
  @Slf4j
  public abstract class TestResources {
  
    @Nonnull
    private static ClassLoader getClassLoader() {
      final ClassLoader object = Thread.currentThread().getContextClassLoader();
      return requireNonNull(object);
    }
  
    @Nonnull
    public static URL getResourceAsUrl(@Nonnull final String name) {
      final ClassLoader loader = getClassLoader();
      final URL object = loader.getResource(name);
      return requireNonNull(object);
    }
  
    @Nonnull
    public static InputStream getResourceAsStream(@Nonnull final String name) {
      final ClassLoader loader = getClassLoader();
      final InputStream inputStream = loader.getResourceAsStream(name);
      check(Objects.nonNull(inputStream), "Failed to load resource from : '%s'", name);
      return requireNonNull(inputStream);
    }
  
    @Nonnull
    public static String getResourceAsString(@Nonnull final String name) {
      try {
        final InputStream expectedStream = getResourceAsStream(name);
        final StringWriter writer = new StringWriter();
        IOUtils.copy(expectedStream, writer, UTF_8);
        return writer.toString();
      } catch (final IOException e) {
        throw new RuntimeException("Problem retrieving test resource", e);
      }
    }
  }
  