org.spf4j.unix

Class JVMArguments

java.lang.Object

org.spf4j.unix.JVMArguments

public final class JVMArguments
extends Object

List of arguments for Java VM and application. based on class from akuma lib (http://akuma.kohsuke.org).

Constructor Summary

Constructors

Constructor and Description
JVMArguments(Collection<? extends String> c)
JVMArguments(int size)

Method Summary

Modifier and Type	Method and Description
void	add(String arg)
void	createOrUpdateSystemProperty(String pname, Function<String,String> replacer)
static JVMArguments	current() Gets the process argument list of the current process.
boolean	equals(Object obj)
String	getExecutable()
String	getSystemProperty(String pname)
int	hashCode()
boolean	hasSystemProperty(String pname)
boolean	hasVMArgument(String argument)
boolean	hasVMArgumentStartingWith(String argumentPrefix)
static JVMArguments	of(int pid) Gets the process argument list of the specified process ID.
int	removeAllSystemPropertiesStartingWith(String pname) remove all system properties starting with a prefix.
String	removeSystemProperty(String pname) Removes the first System property.
void	removeTail(int n) Removes the n items from the end.
boolean	removeVMArgument(String argument)
void	setSystemProperty(String name, String value)
void	setVMArgument(String argument)
String[]	toArray()
String	toString()
com.sun.jna.StringArray	toStringArray()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

JVMArguments

public JVMArguments(int size)

JVMArguments

public JVMArguments(Collection<? extends String> c)

Method Detail

getExecutable

public String getExecutable()

removeSystemProperty

@Nullable
public String removeSystemProperty(String pname)

Removes the first System property.

Parameters:

pname - the name of the system property to remove.

Returns:

the value of the removed system property. or null if there is no such property.

getSystemProperty

@Nullable
public String getSystemProperty(String pname)

createOrUpdateSystemProperty

@Nullable
public void createOrUpdateSystemProperty(String pname,
                                                   Function<String,String> replacer)

hasSystemProperty

public boolean hasSystemProperty(String pname)

removeAllSystemPropertiesStartingWith

public int removeAllSystemPropertiesStartingWith(String pname)

remove all system properties starting with a prefix.

Parameters:

pname - the prefix

Returns:

number of system properties removed.

setSystemProperty

public void setSystemProperty(String name,
                              String value)

setVMArgument

public void setVMArgument(String argument)

removeVMArgument

public boolean removeVMArgument(String argument)

hasVMArgument

public boolean hasVMArgument(String argument)

hasVMArgumentStartingWith

public boolean hasVMArgumentStartingWith(String argumentPrefix)

add

public void add(String arg)

removeTail

public void removeTail(int n)

Removes the n items from the end. Useful for removing all the Java arguments to rebuild them.

toStringArray

public com.sun.jna.StringArray toStringArray()

current

public static JVMArguments current()
                            throws IOException

Gets the process argument list of the current process.

Throws:

IOException

of

public static JVMArguments of(int pid)
                       throws IOException

Gets the process argument list of the specified process ID.

Parameters:

pid - -1 to indicate the current process.

Throws:

IOException

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toArray

public String[] toArray()