本文整理汇总了Java中org.apache.hadoop.hbase.io.ImmutableBytesWritable.copyBytes方法的典型用法代码示例。如果您正苦于以下问题：Java ImmutableBytesWritable.copyBytes方法的具体用法？Java ImmutableBytesWritable.copyBytes怎么用？Java ImmutableBytesWritable.copyBytes使用的例子？那么, 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.ImmutableBytesWritable的用法示例。
在下文中一共展示了ImmutableBytesWritable.copyBytes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: map
import org.apache.hadoop.hbase.io.ImmutableBytesWritable; //导入方法依赖的package包/类
/**
* Convert a line of TSV text into an HBase table row after transforming the
* values by multiplying them by 3.
*/
@Override
public void map(LongWritable offset, Text value, Context context)
throws IOException {
byte[] family = Bytes.toBytes("FAM");
final byte[][] qualifiers = { Bytes.toBytes("A"), Bytes.toBytes("B") };
// do some basic line parsing
byte[] lineBytes = value.getBytes();
String[] valueTokens = new String(lineBytes, "UTF-8").split("\u001b");
// create the rowKey and Put
ImmutableBytesWritable rowKey =
new ImmutableBytesWritable(Bytes.toBytes(valueTokens[0]));
Put put = new Put(rowKey.copyBytes());
put.setDurability(Durability.SKIP_WAL);
//The value should look like this: VALUE1 or VALUE2. Let's multiply
//the integer by 3
for(int i = 1; i < valueTokens.length; i++) {
String prefix = valueTokens[i].substring(0, "VALUE".length());
String suffix = valueTokens[i].substring("VALUE".length());
String newValue = prefix + Integer.parseInt(suffix) * 3;
KeyValue kv = new KeyValue(rowKey.copyBytes(), family,
qualifiers[i-1], Bytes.toBytes(newValue));
put.add(kv);
}
try {
context.write(rowKey, put);
} catch (InterruptedException e) {
e.printStackTrace();
}
}