| /** |
| * 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.hadoop.io.erasurecode.codec; |
| |
| import org.apache.hadoop.conf.Configurable; |
| import org.apache.hadoop.io.erasurecode.coder.ErasureCoder; |
| import org.apache.hadoop.io.erasurecode.grouper.BlockGrouper; |
| |
| /** |
| * Erasure Codec API that's to cover the essential specific aspects of a code. |
| * Currently it cares only block grouper and erasure coder. In future we may |
| * add more aspects here to make the behaviors customizable. |
| */ |
| public interface ErasureCodec extends Configurable { |
| |
| /** |
| * Create block grouper |
| * @return block grouper |
| */ |
| public BlockGrouper createBlockGrouper(); |
| |
| /** |
| * Create Erasure Encoder |
| * @return erasure encoder |
| */ |
| public ErasureCoder createEncoder(); |
| |
| /** |
| * Create Erasure Decoder |
| * @return erasure decoder |
| */ |
| public ErasureCoder createDecoder(); |
| |
| } |
