com.groiss.ldap
Class LDAPUtils

java.lang.Object
  com.groiss.ldap.LDAPUtils

public class LDAPUtils
extends Object

Helper class for dealing with LDAP-Servers

Constructor Summary

LDAPUtils()

Method Summary

static DirContext	connect(DirectoryServer ds) Connect to a directory server.
Page	connectAndList(HttpServletRequest req) Connect to an LDAP Server and list its contents
static DirContext	createSubcontext(DirContext baseContext, ClassMapping cm) Create a subcontext of a basecontext, as specified by a class mapping.
static void	deleteSubtree(DirContext ctx) Recursivly delete a subtree in the LDAP-Server
static String	extractRDNVal(String dn) Extract the Value of the RDN from a String which is a DN
static Attribute	getAttribute(DirectoryServer ds, AttributeMapping am, Persistent o) Construct an Attribute from a Persistent and an Attribute Mapping
static Object	getAttValue(DirectoryServer ds, AttributeMapping am, Persistent o) Get an attribute value from an Persistent and an AttributeMapping
static String	getDN(ClassMapping cm, Persistent o) Get the distinguished name of an Persistent relative to the root
static String	getSearchExpression(Attributes attribs, Class<?> clazz, ClassMapping cm, DirContext objectCtx, Persistent parentObject, String parentField) Create a SQL search expression for an LDAP object.
static String	getSearchOid(Persistent o) Get a LDAP search expression for a Persistent based on Attribute entOid
static String	getSearchString(ClassMapping cm, DirContext ctx) Construct a LDAP search string for a dircontext based on the RDN attribute
static String	getSearchString(DirectoryServer ds, ClassMapping cm, Persistent o) Construct a LDAP search string for a Persistent based on the RDN attribute
static DirContext	getSubContext(DirContext baseContext, ClassMapping cm) Get a subcontext of a basecontext, as specified ba a class mapping
static void	setField(Field ff, Object o, Object val) Set a field of the given object to a value
static void	setNull(Field ff, Object o) Set the given field of an Object to an appropriate value for null
static void	setSQLAttributes(Persistent o, DirContext objectCtx, ClassMapping cm) Set the fields of the Persistent that corresponds to the given DirContext based on the ClassMapping
static void	sync(DirectoryServer ds, boolean throwEx) Synchronize with a directory server.
Page	sync(HttpServletRequest req) Synchronize with a directory Server

Methods inherited from class java.lang.Object

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

Constructor Detail

LDAPUtils

public LDAPUtils()

Method Detail

connectAndList

public Page connectAndList(HttpServletRequest req)
                    throws Exception

Connect to an LDAP Server and list its contents

Parameters:

req -

Returns:

a Page containing the content

Throws:

Exception

sync

public Page sync(HttpServletRequest req)
          throws Exception

Synchronize with a directory Server

Parameters:

req -

Returns:

a feedback page

Throws:

Exception

sync

public static void sync(DirectoryServer ds,
                        boolean throwEx)
                 throws Exception

Synchronize with a directory server.

Parameters:

ds - the server to synchronize with

Throws:

Exception

connect

public static DirContext connect(DirectoryServer ds)
                          throws NamingException

Connect to a directory server. Return the basic directory context

Parameters:

ds - the directory server to connect to

Returns:

the basic directory context as specified

Throws:

NamingException

getSubContext

public static DirContext getSubContext(DirContext baseContext,
                                       ClassMapping cm)
                                throws Exception

Get a subcontext of a basecontext, as specified ba a class mapping

Parameters:

baseContext - the case context

cm - the class mapping which specifies the subcontext

Returns:

a DirContext for the subcontext

Throws:

Exception

createSubcontext

public static DirContext createSubcontext(DirContext baseContext,
                                          ClassMapping cm)
                                   throws Exception

Create a subcontext of a basecontext, as specified by a class mapping. Types for the subcontext are top and organiationalUnit

Parameters:

baseContext - the case context

cm - the class mapping which specifies the subcontext

Returns:

a new DirContext for the subcontext

Throws:

Exception

deleteSubtree

public static void deleteSubtree(DirContext ctx)
                          throws Exception

Recursivly delete a subtree in the LDAP-Server

Parameters:

ctx - the root of the tree to be deleted

Throws:

Exception

getSearchString

public static String getSearchString(ClassMapping cm,
                                     DirContext ctx)
                              throws Exception

Construct a LDAP search string for a dircontext based on the RDN attribute

Parameters:

cm - the appropriate class mapping for the dir context

ctx - the context to construct the search string for

Returns:

a search string for the diretory context

Throws:

Exception

getSearchString

public static String getSearchString(DirectoryServer ds,
                                     ClassMapping cm,
                                     Persistent o)
                              throws Exception

Construct a LDAP search string for a Persistent based on the RDN attribute

Parameters:

ds - the

cm -

o -

Returns:

the search string

Throws:

Exception

getSearchOid

public static String getSearchOid(Persistent o)
                           throws Exception

Get a LDAP search expression for a Persistent based on Attribute entOid

Parameters:

o - the Persistent for which the search expression is to be generated

Returns:

a string with the search expression

Throws:

Exception

getDN

public static String getDN(ClassMapping cm,
                           Persistent o)
                    throws Exception

Get the distinguished name of an Persistent relative to the root

Parameters:

cm - an appropriate class mapping for the persistent

o - the object to generate the DN for

Returns:

a DN identifying the object

Throws:

Exception

getAttribute

public static Attribute getAttribute(DirectoryServer ds,
                                     AttributeMapping am,
                                     Persistent o)
                              throws Exception

Construct an Attribute from a Persistent and an Attribute Mapping

Parameters:

ds - the directory server

am - the attribute mapping

o - the Persistent

Returns:

an Attribute object for the specified Persistent and AttributeMapping

Throws:

Exception

getAttValue

public static Object getAttValue(DirectoryServer ds,
                                 AttributeMapping am,
                                 Persistent o)
                          throws Exception

Get an attribute value from an Persistent and an AttributeMapping

Parameters:

ds - the directory server

am - the attribute mapping

o - the Persistent

Returns:

an value for the attribute for the specified Persistent and AttributeMapping combination

Throws:

Exception

setSQLAttributes

public static void setSQLAttributes(Persistent o,
                                    DirContext objectCtx,
                                    ClassMapping cm)
                             throws Exception

Set the fields of the Persistent that corresponds to the given DirContext based on the ClassMapping

Parameters:

o - the Persistent whose fields are to be filled

objectCtx - the directory context whose attribute values are to be filled into the Persistent

cm - an appropriate ClassMapping between o and objectCtx

Throws:

Exception

getSearchExpression

public static String getSearchExpression(Attributes attribs,
                                         Class<?> clazz,
                                         ClassMapping cm,
                                         DirContext objectCtx,
                                         Persistent parentObject,
                                         String parentField)
                                  throws Exception

Create a SQL search expression for an LDAP object.

Parameters:

attribs - the Attributes of the LDAP object

clazz - the class of the Persistent

cm - an appropriate class mapping

objectCtx - the LDAP object

parentObject - the SQL parent object of the LDAP object

parentField - the SQL field by which the parent object is linked to the Persistent (foreign key)

Returns:

an SQL search expression for the LDAP Object

Throws:

Exception

setNull

public static void setNull(Field ff,
                           Object o)
                    throws Exception

Set the given field of an Object to an appropriate value for null

Parameters:

ff - the Field to set

o - the Object whose field is to be set

Throws:

Exception

setField

public static void setField(Field ff,
                            Object o,
                            Object val)
                     throws Exception

Set a field of the given object to a value

Parameters:

ff - the field to set

o - the Object whose field is to be set

val - the value to set the field to

Throws:

Exception

extractRDNVal

public static String extractRDNVal(String dn)

Extract the Value of the RDN from a String which is a DN

Parameters:

dn - the distinguidhed name

Returns:

the RDN of the DN (the value of the first comma separated component of the dn)