org.astrogrid.samp
Class Platform

java.lang.Object
  org.astrogrid.samp.Platform

public abstract class Platform

extends Object

Platform-dependent features required by the SAMP implementation.

Since:

14 Jul 2008

Author:

Mark Taylor

Constructor Summary

protected

Platform(String name) Constructor.

Method Summary

abstract File	getHomeDirectory() Returns SAMP's definition of the "home" directory.
static Platform	getPlatform() Returns a Platform instance for the current system.
protected abstract String[]	getPrivateReadArgs(File file) Returns an array of words to Runtime.exec(java.lang.String[]) in order to set permissions on a given file so that it cannot be read by anyone other than its owner.
void	setPrivateRead(File file) Sets file permissions on a given file so that it cannot be read by anyone other than its owner.

Methods inherited from class java.lang.Object

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

Constructor Detail

Platform

protected Platform(String name)

Constructor.

Parameters:

name - platform name

Method Detail

getHomeDirectory

public abstract File getHomeDirectory()

Returns SAMP's definition of the "home" directory.

Returns:

directory containing SAMP lockfile

setPrivateRead

public void setPrivateRead(File file)
                    throws IOException

Sets file permissions on a given file so that it cannot be read by anyone other than its owner.

Parameters:

file - file whose permissions are to be altered

Throws:

IOException - if permissions cannot be changed

getPrivateReadArgs

protected abstract String[] getPrivateReadArgs(File file)
                                        throws IOException

Returns an array of words to Runtime.exec(java.lang.String[]) in order to set permissions on a given file so that it cannot be read by anyone other than its owner.

Parameters:

file - file to alter

Returns:

exec args

Throws:

IOException

getPlatform

public static Platform getPlatform()

Returns a Platform instance for the current system.

Returns:

platform instance