本文整理汇总了Java中org.apache.hadoop.hbase.io.hfile.HFileContext.getEncryptionContext方法的典型用法代码示例。如果您正苦于以下问题：Java HFileContext.getEncryptionContext方法的具体用法？Java HFileContext.getEncryptionContext怎么用？Java HFileContext.getEncryptionContext使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hbase.io.hfile.HFileContext的用法示例。
在下文中一共展示了HFileContext.getEncryptionContext方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: HFileBlockDefaultEncodingContext
import org.apache.hadoop.hbase.io.hfile.HFileContext; //导入方法依赖的package包/类
/**
* @param encoding encoding used
* @param headerBytes dummy header bytes
* @param fileContext HFile meta data
*/
public HFileBlockDefaultEncodingContext(DataBlockEncoding encoding, byte[] headerBytes,
HFileContext fileContext) {
this.encodingAlgo = encoding;
this.fileContext = fileContext;
Compression.Algorithm compressionAlgorithm =
fileContext.getCompression() == null ? NONE : fileContext.getCompression();
if (compressionAlgorithm != NONE) {
compressor = compressionAlgorithm.getCompressor();
compressedByteStream = new ByteArrayOutputStream();
try {
compressionStream =
compressionAlgorithm.createPlainCompressionStream(
compressedByteStream, compressor);
} catch (IOException e) {
throw new RuntimeException(
"Could not create compression stream for algorithm "
+ compressionAlgorithm, e);
}
}
Encryption.Context cryptoContext = fileContext.getEncryptionContext();
if (cryptoContext != Encryption.Context.NONE) {
cryptoByteStream = new ByteArrayOutputStream();
iv = new byte[cryptoContext.getCipher().getIvLength()];
new SecureRandom().nextBytes(iv);
}
dummyHeader = Preconditions.checkNotNull(headerBytes,
"Please pass HConstants.HFILEBLOCK_DUMMY_HEADER instead of null for param headerBytes");
}