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org.greenstone.gatherer.util
Class WinRegistry  

java.lang.Object
  org.greenstone.gatherer.util.WinRegistry

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public class WinRegistry

extends java.lang.Object

This class provides access to the Windows registry via the preferences modules of JDK1.4. But wouldn't you know it, it doesn't always read the windows key files correctly as they appear to have changed how they store keys between win98, win2000 and winNT. To combat this, this class will eventually be swallowed by the LauchProgramManager, and used only to attempt to determine the default launching commands.

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Field Summary
private static int	ERROR_CODE           A constant used to interpret the return of a native function as an error.
private static int	ERROR_SUCCESS           Windows error codes.
private static int	HKEY_LOCAL_MACHINE           HKEY_LOCAL_MACHINE address.
private static int	KEY_QUERY_VALUE           Windows security mask
private static int	NATIVE_HANDLE           A constant used to interpret the return of a native function as successful.

 

Constructor Summary

WinRegistry()

 

Method Summary
private static java.lang.String	byteArrayToString(byte[] array)
private static java.lang.String	getValue(java.lang.String path)           Attempts to retrieve the value at the location given from the registry using Reflection.
static java.lang.String	openCommand(java.lang.String filename)           Called to build a command string that will launch the given file in its associated program according to the windows registry.
static int[]	openKey(int hkey, byte[] windowsAbsolutePath, int securityMask)           Attempts to open a certain key-value pair from the windows registry, from within a certain region (or HKEY).
private static byte[]	stringToByteArray(java.lang.String str)           Converts a string to a byte array.
private static java.lang.String	toJavaValueString(byte[] windowsNameArray)
private static byte[]	toWindowsName(java.lang.String javaName)           Magics the name of a certain path component from a Java String to the unique string windows requires.
static int	WindowsRegCloseKey(int nativeHandle)           Closes the reference (and hence the instantiated objects) to a certain entry within the registry.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

KEY_QUERY_VALUE

private static final int KEY_QUERY_VALUE

Windows security mask

See Also:

Constant Field Values

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NATIVE_HANDLE

private static final int NATIVE_HANDLE

A constant used to interpret the return of a native function as successful.

See Also:

Constant Field Values

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ERROR_CODE

private static final int ERROR_CODE

A constant used to interpret the return of a native function as an error.

See Also:

Constant Field Values

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ERROR_SUCCESS

private static final int ERROR_SUCCESS

Windows error codes.

See Also:

Constant Field Values

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HKEY_LOCAL_MACHINE

private static final int HKEY_LOCAL_MACHINE

HKEY_LOCAL_MACHINE address.

See Also:

Constant Field Values

Constructor Detail

WinRegistry

public WinRegistry()

Method Detail

openCommand

public static java.lang.String openCommand(java.lang.String filename)

Called to build a command string that will launch the given file in its associated program according to the windows registry.

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getValue

private static java.lang.String getValue(java.lang.String path)
                                  throws java.lang.ClassNotFoundException,
                                         java.lang.Exception,
                                         java.lang.NoSuchMethodException

Attempts to retrieve the value at the location given from the registry using Reflection.

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WindowsRegCloseKey

public static int WindowsRegCloseKey(int nativeHandle)
                              throws java.lang.Exception

Closes the reference (and hence the instantiated objects) to a certain entry within the registry. Do this or suffer massive memory leaks.

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openKey

public static int[] openKey(int hkey,
                            byte[] windowsAbsolutePath,
                            int securityMask)
                     throws java.lang.Exception

Attempts to open a certain key-value pair from the windows registry, from within a certain region (or HKEY).

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stringToByteArray

private static byte[] stringToByteArray(java.lang.String str)

Converts a string to a byte array. Duh!

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toJavaValueString

private static java.lang.String toJavaValueString(byte[] windowsNameArray)

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byteArrayToString

private static java.lang.String byteArrayToString(byte[] array)

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toWindowsName

private static byte[] toWindowsName(java.lang.String javaName)

Magics the name of a certain path component from a Java String to the unique string windows requires.

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Home >> All >> org >> greenstone >> gatherer >> [ util overview ]	PREV CLASS  NEXT CLASS
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