Package org.apache.hadoop.yarn.server.nodemanager.util

Class ProcessIdFileReader

java.lang.Object

org.apache.hadoop.yarn.server.nodemanager.util.ProcessIdFileReader

public class ProcessIdFileReader
extends Object

Helper functionality to read the pid from a file.

Constructor Summary

Constructors

Constructor	Description
ProcessIdFileReader()

Method Summary

Modifier and Type	Method	Description
static String	getProcessId(org.apache.hadoop.fs.Path path)	Get the process id from specified file path.

Methods inherited from class java.lang.Object

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

Constructor Details

ProcessIdFileReader

public ProcessIdFileReader()

Method Details

getProcessId

public static String getProcessId(org.apache.hadoop.fs.Path path)
                           throws IOException

Get the process id from specified file path. Parses each line to find a valid number and returns the first one found.

Returns:

Process Id if obtained from path specified else null

Throws:

IOException