com.codemercs.install
Class PlatformInstaller

java.lang.Object
  com.codemercs.install.PlatformInstaller

Direct Known Subclasses:

LinuxInstaller

abstract class PlatformInstaller
extends java.lang.Object

Base class for platform-specific installation classes.

Author:

Eberhard Fahle

Field Summary

protected java.io.File	jarFile The file for the jar
protected java.lang.String	jarName The name of the jar that contains the native-interface
protected java.io.File	libDir The directory where the iowkit is installed
protected java.lang.String	libFileName The is the plattform-specific name of the library
protected java.lang.String	libName The the name of the library we want to install
protected java.io.File	target The library

Constructor Summary

protected

PlatformInstaller(java.lang.String libLocation, java.lang.String libName, java.lang.String jarName) Creates a new PlatformInstaller.

Method Summary

boolean	copyJar(java.io.File javaExtDir) Copy the jar-file to the java.ext.dirs.
abstract boolean	copyLib(java.io.File javaLibDir) Copy the library to the java.library.path.
java.io.File	getJavaExtentionsDirectory() Gets the first entry of the java.ext.dirs.
java.io.File	getJavaLibraryDirectory() Gets the first entry of the java.library.path.
boolean	jarExists() Tests wether the jarfile to be installed exits.
boolean	libraryExists() Tests wether the library to be installed exits.

Methods inherited from class java.lang.Object

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

Field Detail

libName

protected final java.lang.String libName

The the name of the library we want to install

libFileName

protected final java.lang.String libFileName

The is the plattform-specific name of the library

libDir

protected java.io.File libDir

The directory where the iowkit is installed

target

protected java.io.File target

The library

jarName

protected java.lang.String jarName

The name of the jar that contains the native-interface

jarFile

protected java.io.File jarFile

The file for the jar

Constructor Detail

PlatformInstaller

protected PlatformInstaller(java.lang.String libLocation,
                            java.lang.String libName,
                            java.lang.String jarName)

Creates a new PlatformInstaller.

Parameters:

libLocation - a String that contains the directory where the lib ist to be installed.

libName - the name of the library that is to be installed

jarName - the name of the jar-file that contains the native interface-definitions

Method Detail

libraryExists

public boolean libraryExists()

Tests wether the library to be installed exits.

Returns:

boolean True if the library exist, false otherwise.

jarExists

public boolean jarExists()

Tests wether the jarfile to be installed exits.

Returns:

boolean True if the jarfile exists and can be read for copying, false otherwise.

getJavaLibraryDirectory

public java.io.File getJavaLibraryDirectory()

Gets the first entry of the java.library.path.

Returns:

File the filedescritptor for the first entry of the java.library.path. Return null :
If there are no entries in the system.property
If the directory does not exist
If we cannot write into the directory

getJavaExtentionsDirectory

public java.io.File getJavaExtentionsDirectory()

Gets the first entry of the java.ext.dirs.

Returns:

File the filedescriptor for the first entry of the java.ext.dirs. Return null :
If there are no entries in the system.property
If the directory does not exist
If we cannot write into the directory

copyLib

public abstract boolean copyLib(java.io.File javaLibDir)

Copy the library to the java.library.path. The implementation of this method is platform-specific.

Parameters:

javaLibDir - the directory for the library

Returns:

boolean true if the lib was sucessfully copied, false otherwise.

copyJar

public boolean copyJar(java.io.File javaExtDir)

Copy the jar-file to the java.ext.dirs.

Parameters:

javaExtDir - the directory for the jar-file

Returns:

boolean true if the jar was sucessfully copied, false otherwise.