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.asterix.cloud;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  import org.apache.hyracks.api.io.FileReference;
  import org.apache.hyracks.api.io.IODeviceHandle;
  
  public class UncachedFileReference extends FileReference {
      private static final long serialVersionUID = -920468777697935759L;
      private final long size;
  
      public UncachedFileReference(IODeviceHandle dev, String path, long size) {
          super(dev, path);
          this.size = size;
      }
  
      private UncachedFileReference(FileReference fileReference) {
          this(fileReference.getDeviceHandle(), fileReference.getRelativePath(), fileReference.getFile().length());
      }
  
      public long getSize() {
          return size;
      }
  
      /**
       * Convert a collection of {@link FileReference} to a collection of {@link UncachedFileReference}
       * NOTE: Requires files to exist in the local drive
       *
       * @param files Collection of {@link FileReference} to convert to {@link UncachedFileReference}
       * @return converted collection of file references
       */
      public static Collection<FileReference> toUncached(Collection<FileReference> files) {
          List<FileReference> uncached = new ArrayList<>();
          for (FileReference fileReference : files) {
              if (!fileReference.getFile().exists()) {
                  throw new IllegalStateException(fileReference.getAbsolutePath() + " does not exist");
              }
              uncached.add(new UncachedFileReference(fileReference));
          }
  
          return uncached;
      }
  }
  