K
- the key of the records from KafkaV
- the value of the records from Kafkapublic class KafkaRecordReader<K,V>
extends org.apache.hadoop.mapreduce.RecordReader<K,V>
RecordReader
for pulling data from Kafka.Constructor and Description |
---|
KafkaRecordReader() |
Modifier and Type | Method and Description |
---|---|
void |
close() |
K |
getCurrentKey() |
V |
getCurrentValue() |
float |
getProgress() |
void |
initialize(org.apache.hadoop.mapreduce.InputSplit inputSplit,
org.apache.hadoop.mapreduce.TaskAttemptContext taskAttemptContext) |
boolean |
nextKeyValue() |
public void initialize(org.apache.hadoop.mapreduce.InputSplit inputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext taskAttemptContext) throws IOException, InterruptedException
initialize
in class org.apache.hadoop.mapreduce.RecordReader<K,V>
IOException
InterruptedException
public boolean nextKeyValue() throws IOException, InterruptedException
nextKeyValue
in class org.apache.hadoop.mapreduce.RecordReader<K,V>
IOException
InterruptedException
public K getCurrentKey() throws IOException, InterruptedException
getCurrentKey
in class org.apache.hadoop.mapreduce.RecordReader<K,V>
IOException
InterruptedException
public V getCurrentValue() throws IOException, InterruptedException
getCurrentValue
in class org.apache.hadoop.mapreduce.RecordReader<K,V>
IOException
InterruptedException
public float getProgress() throws IOException, InterruptedException
getProgress
in class org.apache.hadoop.mapreduce.RecordReader<K,V>
IOException
InterruptedException
public void close() throws IOException
close
in interface Closeable
close
in interface AutoCloseable
close
in class org.apache.hadoop.mapreduce.RecordReader<K,V>
IOException
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