com.helger.commons.lang

Class CGStringHelper

java.lang.Object

com.helger.commons.lang.CGStringHelper

@Immutable
public final class CGStringHelper
extends Object

Special string helper especially for Java internal class name handling etc. CG = Code Generation.

Author:

Philip Helger

Method Summary

Methods

Modifier and Type	Method and Description
static String	getClassFromPath(String sPath) Get the class name of the passed path.
static String	getClassLocalName(Class<?> aClass) Get the name of the class without the package.
static String	getClassLocalName(Object aObject) Get the name of the object's class without the package.
static String	getClassLocalName(String sClassName) Get the name of the class without the package.
static String	getClassPackageName(Class<?> aClass) Get the name of the package the passed class resides in.
static String	getClassPackageName(String sClassName) Get the name of the package the passed class resides in.
static String	getDirectoryFromPackage(Package aPackage) Convert a package name to a relative directory name.
static String	getDirectoryFromPackage(String sPackage) Convert a package name to a relative directory name.
static String	getObjectAddress(Object aObject) Get the hex representation of the passed object's address.
static String	getPathFromClass(Class<?> aClass) Get the path representation of the passed class.
static String	getPathFromClass(String sClassName) Get the path representation of the passed class name.
static String	getSafeClassName(Object aObject) Get the class name of the passed object.

Methods inherited from class java.lang.Object

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

Method Detail

getClassLocalName

@Nonnull
public static String getClassLocalName(@Nonnull
                               Object aObject)

Get the name of the object's class without the package.

Parameters:

aObject - The object to get the information from. May not be null .

Returns:

The local name of the passed object's class.

getClassLocalName

@Nonnull
public static String getClassLocalName(@Nonnull
                               Class<?> aClass)

Get the name of the class without the package.

Parameters:

aClass - The class to get the information from. May not be null.

Returns:

The local name of the passed class.

getClassLocalName

@Nonnull
public static String getClassLocalName(@Nonnull
                               String sClassName)

Get the name of the class without the package.

Parameters:

sClassName - The fully qualified name of the class. May not be null.

Returns:

The local name of the passed class. Never null.

getClassPackageName

@Nonnull
public static String getClassPackageName(@Nonnull
                                 Class<?> aClass)

Get the name of the package the passed class resides in.

Parameters:

aClass - The class to get the information from. May not be null.

Returns:

The package name of the passed class.

getClassPackageName

@Nonnull
public static String getClassPackageName(@Nonnull
                                 String sClassName)

Get the name of the package the passed class resides in.

Parameters:

sClassName - The name class to get the information from. May not be null.

Returns:

The package name of the passed class.

getSafeClassName

@Nonnull
public static String getSafeClassName(@Nullable
                              Object aObject)

Get the class name of the passed object. If the object itself is of type Class, its name is retrieved, other Object.getClass() is called.

Parameters:

aObject - The object who's class name is to be retrieved.

Returns:

"null" for a null parameter

getDirectoryFromPackage

@Nonnull
public static String getDirectoryFromPackage(@Nonnull
                                     Package aPackage)

Convert a package name to a relative directory name.

Parameters:

aPackage - The package to be converted. May not be null.

Returns:

The directory name using forward slashes (/) instead of the dots.

getDirectoryFromPackage

@Nonnull
public static String getDirectoryFromPackage(@Nonnull
                                     String sPackage)

Convert a package name to a relative directory name.

Parameters:

sPackage - The name of the package to be converted. May not be null.

Returns:

The directory name using forward slashes (/) instead of the dots.

getPathFromClass

@Nonnull
public static String getPathFromClass(@Nonnull
                              Class<?> aClass)

Get the path representation of the passed class. The path representation is achieved by replacing all dots (.) with forward slashes (/) in the class name.

Parameters:

aClass - The class of which the path is to be retrieved. May not be null.

Returns:

The path representation. Never null.

getPathFromClass

@Nonnull
public static String getPathFromClass(@Nonnull
                              String sClassName)

Get the path representation of the passed class name. The path representation is achieved by replacing all dots (.) with forward slashes (/) in the class name.

Parameters:

sClassName - The class name of which the path is to be retrieved.

Returns:

The path representation

getClassFromPath

@Nonnull
public static String getClassFromPath(@Nonnull
                              String sPath)

Get the class name of the passed path. The class name is retrieved by replacing all path separators (\ and /) with dots (.). This method does not handle the file extension, so it's up to the caller to skip of any file extension!

Parameters:

sPath - The path to be converted. May not be null.

Returns:

The class name.

getObjectAddress

@Nonnull
@Nonempty
public static String getObjectAddress(@Nullable
                                       Object aObject)

Get the hex representation of the passed object's address. Note that this method makes no differentiation between 32 and 64 bit architectures. The result is always a hexadecimal value preceded by "0x" and followed by exactly 8 characters.

Parameters:

aObject - The object who's address is to be retrieved. May be null.

Returns:

Depending on the current architecture. Always starting with "0x" and than containing the address.

See Also:

System.identityHashCode(Object)