org.apache.nifi.bootstrap.util

Class OSUtils

java.lang.Object

org.apache.nifi.bootstrap.util.OSUtils

public final class OSUtils
extends Object

OS specific utilities with generic method interfaces

Constructor Summary

Constructors

Constructor and Description
OSUtils()

Method Summary

Modifier and Type	Method and Description
static Long	getProcessId(Process process, org.slf4j.Logger logger)
private static Long	getUnixPid(Process process, org.slf4j.Logger logger)
(package private) static int	parseJavaVersion(String version) Returns the major version parsed from the provided Java version string (e.g.

Methods inherited from class java.lang.Object

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

Constructor Detail

OSUtils

public OSUtils()

Method Detail

getProcessId

public static Long getProcessId(Process process,
                                org.slf4j.Logger logger)

Parameters:

process - NiFi Process Reference

logger - Logger Reference for Debug

Returns:

Returns pid or null in-case pid could not be determined This method takes Process and Logger and returns the platform specific ProcessId for Unix like systems or Handle for Win32 Systems, a.k.a pid In-case it fails to determine the pid, it will return Null. Purpose for the Logger is to log any interaction for debugging.

parseJavaVersion

static int parseJavaVersion(String version)

Returns the major version parsed from the provided Java version string (e.g. "1.8.0.231" -> 8).

Parameters:

version - the Java version string

Returns:

the major version as an int

getUnixPid

private static Long getUnixPid(Process process,
                               org.slf4j.Logger logger)

Parameters:

process - NiFi Process Reference

logger - Logger Reference for Debug

Returns:

Returns pid or null in-case pid could not be determined This method takes Process and Logger and returns the platform specific ProcessId for Unix like systems, a.k.a pid In-case it fails to determine the pid, it will return Null. Purpose for the Logger is to log any interaction for debugging.