org.apache.hadoop.tools.rumen

类 Hadoop20JHParser

java.lang.Object

org.apache.hadoop.tools.rumen.Hadoop20JHParser

所有已实现的接口:

Closeable, AutoCloseable, JobHistoryParser

public class Hadoop20JHParser
extends Object
implements JobHistoryParser

JobHistoryParser to parse job histories for hadoop 0.20 (META=1).

构造器概要

构造器

构造器和说明
Hadoop20JHParser(InputStream input)
Hadoop20JHParser(LineReader reader)

方法概要

方法

限定符和类型	方法和说明
static boolean	canParse(InputStream input) Can this parser parse the input?
void	close()
HistoryEvent	nextEvent() Get the next HistoryEvent

从类继承的方法 java.lang.Object

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

构造器详细资料

Hadoop20JHParser

public Hadoop20JHParser(InputStream input)
                 throws IOException

抛出:

IOException

Hadoop20JHParser

public Hadoop20JHParser(LineReader reader)
                 throws IOException

抛出:

IOException

方法详细资料

canParse

public static boolean canParse(InputStream input)
                        throws IOException

Can this parser parse the input?

参数:

input -

返回:

Whether this parser can parse the input.

抛出:

IOException - We will deem a stream to be a good 0.20 job history stream if the first line is exactly "Meta VERSION=\"1\" ."

nextEvent

public HistoryEvent nextEvent()

从接口复制的说明: JobHistoryParser

Get the next HistoryEvent

指定者:

nextEvent 在接口中 JobHistoryParser

返回:

the next HistoryEvent. If no more events left, return null.

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

抛出:

IOException