Source code

001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.io.storage.local;
020
021import org.apache.reef.exception.evaluator.StorageException;
022import org.apache.reef.io.Accumulable;
023import org.apache.reef.io.Accumulator;
024import org.apache.reef.io.serialization.Codec;
025
026import java.io.File;
027import java.io.IOException;
028
029public final class CodecFileAccumulable<T, C extends Codec<T>> implements Accumulable<T> {
030
031  private final File filename;
032  private final C codec;
033
034  public CodecFileAccumulable(final LocalStorageService s, final C codec) {
035    this.filename = s.getScratchSpace().newFile();
036    this.codec = codec;
037  }
038
039  public String getName() {
040    return this.filename.toString();
041  }
042
043  @Override
044  public Accumulator<T> accumulator() throws StorageException {
045    try {
046      return new CodecFileAccumulator<>(this.codec, this.filename);
047    } catch (final IOException e) {
048      throw new StorageException(e);
049    }
050  }
051
052}