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java.lang.Objectorg.apache.hadoop.hbase.replication.regionserver.ReplicationHLogReaderManager
@InterfaceAudience.Private public class ReplicationHLogReaderManager
Wrapper class around HLog to help manage the implementation details such as compression.
| Constructor Summary | |
|---|---|
ReplicationHLogReaderManager(org.apache.hadoop.fs.FileSystem fs,
org.apache.hadoop.conf.Configuration conf)
Creates the helper but doesn't open any file Use setInitialPosition after using the constructor if some content needs to be skipped |
|
| Method Summary | |
|---|---|
void |
closeReader()
Close the current reader |
long |
getPosition()
Get the position that we stopped reading at |
HLog.Reader |
openReader(org.apache.hadoop.fs.Path path)
Opens the file at the current position |
HLog.Entry |
readNextAndSetPosition(HLog.Entry[] entriesArray,
int currentNbEntries)
Get the next entry, returned and also added in the array |
void |
seek()
Advance the reader to the current position |
void |
setPosition(long pos)
|
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public ReplicationHLogReaderManager(org.apache.hadoop.fs.FileSystem fs,
org.apache.hadoop.conf.Configuration conf)
fs - conf - | Method Detail |
|---|
public HLog.Reader openReader(org.apache.hadoop.fs.Path path)
throws IOException
path -
IOException
public HLog.Entry readNextAndSetPosition(HLog.Entry[] entriesArray,
int currentNbEntries)
throws IOException
entriesArray - currentNbEntries -
IOException
public void seek()
throws IOException
IOExceptionpublic long getPosition()
public void setPosition(long pos)
public void closeReader()
throws IOException
IOException
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