本文整理汇总了Java中org.apache.hadoop.hbase.util.ChecksumType.NULL属性的典型用法代码示例。如果您正苦于以下问题：Java ChecksumType.NULL属性的具体用法？Java ChecksumType.NULL怎么用？Java ChecksumType.NULL使用的例子？那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类org.apache.hadoop.hbase.util.ChecksumType的用法示例。
在下文中一共展示了ChecksumType.NULL属性的4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: generateChecksums
/**
* Generates a checksum for all the data in indata. The checksum is
* written to outdata.
* @param indata input data stream
* @param startOffset starting offset in the indata stream from where to
* compute checkums from
* @param endOffset ending offset in the indata stream upto
* which checksums needs to be computed
* @param outdata the output buffer where checksum values are written
* @param outOffset the starting offset in the outdata where the
* checksum values are written
* @param checksumType type of checksum
* @param bytesPerChecksum number of bytes per checksum value
*/
static void generateChecksums(byte[] indata, int startOffset, int endOffset,
byte[] outdata, int outOffset, ChecksumType checksumType,
int bytesPerChecksum) throws IOException {
if (checksumType == ChecksumType.NULL) {
return; // No checksum for this block.
}
DataChecksum checksum = DataChecksum.newDataChecksum(
checksumType.getDataChecksumType(), bytesPerChecksum);
checksum.calculateChunkedSums(
ByteBuffer.wrap(indata, startOffset, endOffset - startOffset),
ByteBuffer.wrap(outdata, outOffset, outdata.length - outOffset));
}
示例2: convertChecksum
public static ChecksumType convertChecksum(Checksum type) {
switch (type) {
case NONE: return ChecksumType.NULL;
default:
case CRC32: return ChecksumType.CRC32;
}
}
示例3: generateChecksums
/**
* Generates a checksum for all the data in indata. The checksum is
* written to outdata.
* @param indata input data stream
* @param startOffset starting offset in the indata stream from where to
* compute checkums from
* @param endOffset ending offset in the indata stream upto
* which checksums needs to be computed
* @param outData the output buffer where checksum values are written
* @param outOffset the starting offset in the outdata where the
* checksum values are written
* @param checksumType type of checksum
* @param bytesPerChecksum number of bytes per checksum value
*/
static void generateChecksums(byte[] indata,
int startOffset, int endOffset,
byte[] outdata, int outOffset,
ChecksumType checksumType,
int bytesPerChecksum) throws IOException {
if (checksumType == ChecksumType.NULL) {
return; // No checkums for this block.
}
Checksum checksum = checksumType.getChecksumObject();
int bytesLeft = endOffset - startOffset;
int chunkNum = 0;
while (bytesLeft > 0) {
// generate the checksum for one chunk
checksum.reset();
int count = Math.min(bytesLeft, bytesPerChecksum);
checksum.update(indata, startOffset, count);
// write the checksum value to the output buffer.
int cksumValue = (int)checksum.getValue();
outOffset = Bytes.putInt(outdata, outOffset, cksumValue);
chunkNum++;
startOffset += count;
bytesLeft -= count;
}
}
示例4: generateChecksums
/**
* Generates a checksum for all the data in indata. The checksum is
* written to outdata.
* @param indata input data stream
* @param startOffset starting offset in the indata stream from where to
* compute checkums from
* @param endOffset ending offset in the indata stream upto
* which checksums needs to be computed
* @param outdata the output buffer where checksum values are written
* @param outOffset the starting offset in the outdata where the
* checksum values are written
* @param checksumType type of checksum
* @param bytesPerChecksum number of bytes per checksum value
*/
static void generateChecksums(byte[] indata,
int startOffset, int endOffset,
byte[] outdata, int outOffset,
ChecksumType checksumType,
int bytesPerChecksum) throws IOException {
if (checksumType == ChecksumType.NULL) {
return; // No checkums for this block.
}
Checksum checksum = checksumType.getChecksumObject();
int bytesLeft = endOffset - startOffset;
int chunkNum = 0;
while (bytesLeft > 0) {
// generate the checksum for one chunk
checksum.reset();
int count = Math.min(bytesLeft, bytesPerChecksum);
checksum.update(indata, startOffset, count);
// write the checksum value to the output buffer.
int cksumValue = (int)checksum.getValue();
outOffset = Bytes.putInt(outdata, outOffset, cksumValue);
chunkNum++;
startOffset += count;
bytesLeft -= count;
}
}