content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.testutils.underfs;
  
  import alluxio.AlluxioURI;
  import alluxio.underfs.UnderFileSystem;
  import alluxio.underfs.UnderFileSystemConfiguration;
  import alluxio.underfs.UnderFileSystemFactory;
  import alluxio.underfs.local.LocalUnderFileSystem;
  
  import com.google.common.base.Preconditions;
  
  import java.util.Map;
  
  /**
   * A factory to create a {@link LocalUnderFileSystem} that requires expected conf, or throws
   * exceptions during creation. On success, a local under file system is created.
   */
  public final class ConfExpectingUnderFileSystemFactory implements UnderFileSystemFactory {
    /** The scheme of this UFS. */
    public final String mScheme;
    /** The conf expected to create the ufs. */
    private final Map<String, String> mExpectedConf;
  
    public ConfExpectingUnderFileSystemFactory(String scheme, Map<String, String> expectedConf) {
      mScheme = scheme;
      mExpectedConf = expectedConf;
    }
  
    @Override
    public UnderFileSystem create(String path, UnderFileSystemConfiguration conf) {
      Preconditions.checkNotNull(path, "path");
      Preconditions.checkArgument(mExpectedConf.equals(conf.getMountSpecificConf()),
          "ufs conf {} does not match expected {}", conf, mExpectedConf);
      return new LocalUnderFileSystem(new AlluxioURI(new AlluxioURI(path).getPath()), conf);
    }
  
    @Override
    public boolean supportsPath(String path) {
      return path != null && path.startsWith(mScheme + ":///");
    }
  }
  