org.apache.reef.util

Class EnvironmentUtils

java.lang.Object

org.apache.reef.util.EnvironmentUtils

public final class EnvironmentUtils
extends Object

Utils which detect environment settings.

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	areAssertionsEnabled() Check whether assert() statements are evaluated.
static Set<String>	getAllClasspathJars() Get a set of all classpath entries EXCEPT of those under $JAVA_HOME, $YARN_HOME, and $HADOOP_HOME.
static Set<String>	getAllClasspathJars(String... excludeEnv) Get a set of all classpath entries EXCEPT of those under excludeEnv directories.
static String	getClassLocation(Class<?> clazz)

Methods inherited from class java.lang.Object

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

Method Detail

getAllClasspathJars

public static Set<String> getAllClasspathJars()

Get a set of all classpath entries EXCEPT of those under $JAVA_HOME, $YARN_HOME, and $HADOOP_HOME.

Returns:

A set of classpath entries as strings.

getAllClasspathJars

public static Set<String> getAllClasspathJars(String... excludeEnv)

Get a set of all classpath entries EXCEPT of those under excludeEnv directories. Every excludeEnv entry is an environment variable name.

Parameters:

excludeEnv - A set of environments to be excluded.

Returns:

A set of classpath entries as strings.

areAssertionsEnabled

public static boolean areAssertionsEnabled()

Check whether assert() statements are evaluated.

Returns:

true, if assertions are enabled. False otherwise.

getClassLocation

public static String getClassLocation(Class<?> clazz)

Parameters:

clazz - class

Returns:

the location (JAR or .class file) where the given class is located.