本文整理汇总了Java中org.apache.hadoop.hbase.util.ByteBufferUtils.readLong方法的典型用法代码示例。如果您正苦于以下问题：Java ByteBufferUtils.readLong方法的具体用法？Java ByteBufferUtils.readLong怎么用？Java ByteBufferUtils.readLong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.util.ByteBufferUtils的用法示例。
在下文中一共展示了ByteBufferUtils.readLong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: getFirstKeyInBlock
import org.apache.hadoop.hbase.util.ByteBufferUtils; //导入方法依赖的package包/类
@Override
public ByteBuffer getFirstKeyInBlock(ByteBuffer block) {
block.mark();
block.position(Bytes.SIZEOF_INT);
byte familyLength = block.get();
ByteBufferUtils.skip(block, familyLength);
byte flag = block.get();
int keyLength = ByteBufferUtils.readCompressedInt(block);
ByteBufferUtils.readCompressedInt(block); // valueLength
ByteBufferUtils.readCompressedInt(block); // commonLength
ByteBuffer result = ByteBuffer.allocate(keyLength);
// copy row
int pos = result.arrayOffset();
block.get(result.array(), pos, Bytes.SIZEOF_SHORT);
pos += Bytes.SIZEOF_SHORT;
short rowLength = result.getShort();
block.get(result.array(), pos, rowLength);
pos += rowLength;
// copy family
int savePosition = block.position();
block.position(Bytes.SIZEOF_INT);
block.get(result.array(), pos, familyLength + Bytes.SIZEOF_BYTE);
pos += familyLength + Bytes.SIZEOF_BYTE;
// copy qualifier
block.position(savePosition);
int qualifierLength =
keyLength - pos + result.arrayOffset() - KeyValue.TIMESTAMP_TYPE_SIZE;
block.get(result.array(), pos, qualifierLength);
pos += qualifierLength;
// copy the timestamp and type
int timestampFitInBytes =
((flag & MASK_TIMESTAMP_LENGTH) >>> SHIFT_TIMESTAMP_LENGTH) + 1;
long timestamp = ByteBufferUtils.readLong(block, timestampFitInBytes);
if ((flag & FLAG_TIMESTAMP_SIGN) != 0) {
timestamp = -timestamp;
}
result.putLong(pos, timestamp);
pos += Bytes.SIZEOF_LONG;
block.get(result.array(), pos, Bytes.SIZEOF_BYTE);
block.reset();
return result;
}