org.apache.hadoop.yarn.logaggregation
Class AggregatedLogFormat.LogReader

java.lang.Object
  org.apache.hadoop.yarn.logaggregation.AggregatedLogFormat.LogReader

Enclosing class:

AggregatedLogFormat

@InterfaceAudience.Public
@InterfaceStability.Evolving
public static class AggregatedLogFormat.LogReader
extends Object

Constructor Summary

AggregatedLogFormat.LogReader(Configuration conf, Path remoteAppLogFile)

Method Summary

void	close()
Map<ApplicationAccessType,String>	getApplicationAcls() Returns ACLs for the application.
String	getApplicationOwner() Returns the owner of the application.
DataInputStream	next(AggregatedLogFormat.LogKey key) Read the next key and return the value-stream.
static void	readAcontainerLogs(DataInputStream valueStream, Writer writer) Writes all logs for a single container to the provided writer.
static void	readAContainerLogsForALogType(DataInputStream valueStream, PrintStream out) Keep calling this till you get a EOFException for getting logs of all types for a single container.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AggregatedLogFormat.LogReader

public AggregatedLogFormat.LogReader(Configuration conf,
                                     Path remoteAppLogFile)
                              throws IOException

Throws:

IOException

Method Detail

getApplicationOwner

public String getApplicationOwner()
                           throws IOException

Returns the owner of the application.

Returns:

the application owner.

Throws:

IOException

getApplicationAcls

public Map<ApplicationAccessType,String> getApplicationAcls()
                                                     throws IOException

Returns ACLs for the application. An empty map is returned if no ACLs are found.

Returns:

a map of the Application ACLs.

Throws:

IOException

next

public DataInputStream next(AggregatedLogFormat.LogKey key)
                     throws IOException

Read the next key and return the value-stream.

Parameters:

key -

Returns:

the valueStream if there are more keys or null otherwise.

Throws:

IOException

readAcontainerLogs

public static void readAcontainerLogs(DataInputStream valueStream,
                                      Writer writer)
                               throws IOException

Writes all logs for a single container to the provided writer.

Parameters:

valueStream -

writer -

Throws:

IOException

readAContainerLogsForALogType

public static void readAContainerLogsForALogType(DataInputStream valueStream,
                                                 PrintStream out)
                                          throws IOException

Keep calling this till you get a EOFException for getting logs of all types for a single container.

Parameters:

valueStream -

out -

Throws:

IOException

close

public void close()