hadoop SseWrapper 源码
haddop SseWrapper 代码
文件路径：/hadoop-cloud-storage-project/hadoop-huaweicloud/src/main/java/org/apache/hadoop/fs/obs/SseWrapper.java
/*
* 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.fs.obs;
import static org.apache.hadoop.fs.obs.OBSConstants.SSE_KEY;
import static org.apache.hadoop.fs.obs.OBSConstants.SSE_TYPE;
import com.obs.services.model.SseCHeader;
import com.obs.services.model.SseKmsHeader;
import org.apache.hadoop.conf.Configuration;
/**
* Wrapper for Server-Side Encryption (SSE).
*/
class SseWrapper {
/**
* SSE-KMS: Server-Side Encryption with Key Management Service.
*/
private static final String SSE_KMS = "sse-kms";
/**
* SSE-C: Server-Side Encryption with Customer-Provided Encryption Keys.
*/
private static final String SSE_C = "sse-c";
/**
* SSE-C header.
*/
private SseCHeader sseCHeader;
/**
* SSE-KMS header.
*/
private SseKmsHeader sseKmsHeader;
@SuppressWarnings("deprecation")
SseWrapper(final Configuration conf) {
String sseType = conf.getTrimmed(SSE_TYPE);
if (null != sseType) {
String sseKey = conf.getTrimmed(SSE_KEY);
if (sseType.equalsIgnoreCase(SSE_C) && null != sseKey) {
sseCHeader = new SseCHeader();
sseCHeader.setSseCKeyBase64(sseKey);
sseCHeader.setAlgorithm(
com.obs.services.model.ServerAlgorithm.AES256);
} else if (sseType.equalsIgnoreCase(SSE_KMS)) {
sseKmsHeader = new SseKmsHeader();
sseKmsHeader.setEncryption(
com.obs.services.model.ServerEncryption.OBS_KMS);
sseKmsHeader.setKmsKeyId(sseKey);
}
}
}
boolean isSseCEnable() {
return sseCHeader != null;
}
boolean isSseKmsEnable() {
return sseKmsHeader != null;
}
SseCHeader getSseCHeader() {
return sseCHeader;
}
SseKmsHeader getSseKmsHeader() {
return sseKmsHeader;
}
}
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