org.apache.hadoop.io.erasurecode.ErasureCodeConstants Maven / Gradle / Ivy
/**
* 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;
/**
* Constants related to the erasure code feature.
*/
public final class ErasureCodeConstants {
private ErasureCodeConstants() {
}
public static final String DUMMY_CODEC_NAME = "dummy";
public static final String RS_CODEC_NAME = "rs";
public static final String RS_LEGACY_CODEC_NAME = "rs-legacy";
public static final String XOR_CODEC_NAME = "xor";
public static final String HHXOR_CODEC_NAME = "hhxor";
public static final String REPLICATION_CODEC_NAME = "replication";
public static final ECSchema RS_6_3_SCHEMA = new ECSchema(
RS_CODEC_NAME, 6, 3);
public static final ECSchema RS_3_2_SCHEMA = new ECSchema(
RS_CODEC_NAME, 3, 2);
public static final ECSchema RS_6_3_LEGACY_SCHEMA = new ECSchema(
RS_LEGACY_CODEC_NAME, 6, 3);
public static final ECSchema XOR_2_1_SCHEMA = new ECSchema(
XOR_CODEC_NAME, 2, 1);
public static final ECSchema RS_10_4_SCHEMA = new ECSchema(
RS_CODEC_NAME, 10, 4);
public static final ECSchema REPLICATION_1_2_SCHEMA = new ECSchema(
REPLICATION_CODEC_NAME, 1, 2);
public static final byte MAX_POLICY_ID = Byte.MAX_VALUE;
public static final byte USER_DEFINED_POLICY_START_ID = (byte) 64;
public static final byte REPLICATION_POLICY_ID = (byte) 0;
public static final String REPLICATION_POLICY_NAME = REPLICATION_CODEC_NAME;
}