anon.platform

Class WindowsRegistry

java.lang.Object

anon.platform.WindowsRegistry

public class WindowsRegistry
extends java.lang.Object

Simple wrapper class to access the windows registy. The trick is to access a hidden java class inside the JDK which is available at JDK 1.4

Author:

Christian Banse

Field Summary

Fields

Modifier and Type	Field and Description
static int	DELETE
static int	ERROR_ACCESS_DENIED
private static int	ERROR_CODE
static int	ERROR_FILE_NOT_FOUND
static int	ERROR_SUCCESS
static int	HKEY_CLASSES_ROOT
static int	HKEY_CURRENT_USER
static int	HKEY_LOCAL_MACHINE
static int	KEY_ALL_ACCESS
static int	KEY_CREATE_SUB_KEY
static int	KEY_ENUMERATE_SUB_KEYS
static int	KEY_QUERY_VALUE
static int	KEY_READ
static int	KEY_SET_VALUE
static int	KEY_WRITE
private boolean	m_bClosed
private java.util.Vector	m_vecHandles
private static java.lang.reflect.Method	ms_closeKeyMethod
private static java.lang.reflect.Method	ms_openKeyMethod
private static java.lang.reflect.Method	ms_queryValueMethod
private static java.lang.Class	ms_windowsPreferencesClass
private static int	NATIVE_HANDLE

Constructor Summary

Constructors

Constructor and Description
WindowsRegistry(int a_handleHome, java.lang.String a_path, int a_securityMask)

Method Summary

Modifier and Type	Method and Description
void	close()
private static int	closeKey(int a_hKey) Closes the handle to an opened key.
boolean	isClosed()
private static int	openKey(int a_hKey, java.lang.String a_subKey, int a_securityMask) Opens a registry key for further processing.
private static java.lang.String	queryValue(int a_hKey, java.lang.String a_valueName) Queries a certain value of an opened registry key.
java.lang.String	read(java.lang.String a_key)

Methods inherited from class java.lang.Object

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

Field Detail

HKEY_CLASSES_ROOT

public static final int HKEY_CLASSES_ROOT

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Constant Field Values

HKEY_CURRENT_USER

public static final int HKEY_CURRENT_USER

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Constant Field Values

HKEY_LOCAL_MACHINE

public static final int HKEY_LOCAL_MACHINE

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Constant Field Values

DELETE

public static final int DELETE

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Constant Field Values

KEY_QUERY_VALUE

public static final int KEY_QUERY_VALUE

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Constant Field Values

KEY_SET_VALUE

public static final int KEY_SET_VALUE

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Constant Field Values

KEY_CREATE_SUB_KEY

public static final int KEY_CREATE_SUB_KEY

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Constant Field Values

KEY_ENUMERATE_SUB_KEYS

public static final int KEY_ENUMERATE_SUB_KEYS

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Constant Field Values

KEY_READ

public static final int KEY_READ

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Constant Field Values

KEY_WRITE

public static final int KEY_WRITE

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Constant Field Values

KEY_ALL_ACCESS

public static final int KEY_ALL_ACCESS

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Constant Field Values

ERROR_SUCCESS

public static final int ERROR_SUCCESS

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Constant Field Values

ERROR_FILE_NOT_FOUND

public static final int ERROR_FILE_NOT_FOUND

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Constant Field Values

ERROR_ACCESS_DENIED

public static final int ERROR_ACCESS_DENIED

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Constant Field Values

NATIVE_HANDLE

private static final int NATIVE_HANDLE

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Constant Field Values

ERROR_CODE

private static final int ERROR_CODE

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Constant Field Values

ms_windowsPreferencesClass

private static java.lang.Class ms_windowsPreferencesClass

ms_openKeyMethod

private static java.lang.reflect.Method ms_openKeyMethod

ms_queryValueMethod

private static java.lang.reflect.Method ms_queryValueMethod

ms_closeKeyMethod

private static java.lang.reflect.Method ms_closeKeyMethod

m_vecHandles

private java.util.Vector m_vecHandles

m_bClosed

private boolean m_bClosed

Constructor Detail

WindowsRegistry

public WindowsRegistry(int a_handleHome,
                       java.lang.String a_path,
                       int a_securityMask)
                throws java.lang.Exception

Throws:

java.lang.Exception

Method Detail

read

public java.lang.String read(java.lang.String a_key)

isClosed

public boolean isClosed()

close

public void close()

openKey

private static int openKey(int a_hKey,
                           java.lang.String a_subKey,
                           int a_securityMask)
                    throws java.lang.Exception

Opens a registry key for further processing.

Parameters:

a_hKey - The key to open (for example WindowsOS#HKEY_CLASSES_ROOT.

a_subKey - The sub key.

a_securityMask - The security mask (for example WindowsOS#KEY_ALL_ACCESS.

Returns:

the native handle to the registry key.

Throws:

java.lang.Exception

queryValue

private static java.lang.String queryValue(int a_hKey,
                                           java.lang.String a_valueName)

Queries a certain value of an opened registry key. This only works if the value is REG_SZ

Parameters:

a_hKey - The native handle to the key.

a_valueName - The value name.

Returns:

the value of the specified value name.

closeKey

private static int closeKey(int a_hKey)

Closes the handle to an opened key.

Parameters:

a_hKey - The native handle of the key.

Returns:

a windows error code. Returns WindowsOS#ERROR_SUCCESS on success.