gnu.inet.ldap

Class LDAPConnection

java.lang.Object

gnu.inet.ldap.LDAPConnection

public class LDAPConnection
extends Object

An LDAPv3 client. This client is still experimental, please contact Chris Burdess if you want to help out with it.

Author:

Chris Burdess

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_PORT The default LDAP port.
static int	DEREF_ALWAYS Dereference aliases both in searching and in locating the base object of the search.
static int	DEREF_FINDING_BASE_OBJ Dereference aliases in locating the base object of the search, but not when searching subordinates of the base object.
static int	DEREF_IN_SEARCHING Dereference aliases in subordinates of the base object in searching, but not in locating the base object of the search.
static int	DEREF_NEVER Do not dereference aliases in searching or in locating the base object of the search.
protected String	host
protected int	port
static int	SCOPE_BASE_OBJECT
static int	SCOPE_SINGLE_LEVEL
static int	SCOPE_WHOLE_SUBTREE
protected int	version

Constructor Summary

Constructors

Constructor and Description
LDAPConnection(String host) Creates a new LDAP connection to the specified host, using the default LDAP port.
LDAPConnection(String host, int port) Creates a new LDAP connection to the specified host and port.
LDAPConnection(String host, int port, int connectionTimeout, int timeout) Creates a new LDAP connection to the specified host, port, and timeouts.

Method Summary

Modifier and Type	Method and Description
LDAPResult	add(String name, AttributeValues[] attributes) Requests the addition of a new entry into the directory.
LDAPResult	bind(String name, String mechanism, byte[] credentials, Control[] controls) Initiates a bind operation to authenticate the client to the server.
LDAPResult	delete(String name) Requests the removal of an entry from the directory.
LDAPResult	modify(String name, Modification[] modifications) Issues a modify request.
LDAPResult	modifyDN(String name, String newRDN, boolean deleteOldRDN, String newSuperior) Changes the leftmost(least significant) component of the name of an entry in the directory, or move a subtree of entries to a new location in the directory.
LDAPResult	search(String name, int scope, int derefAliases, int sizeLimit, int timeLimit, boolean typesOnly, String filter, String[] attributes, Control[] controls, ResultHandler handler) Issues a search request.
void	setVersion(int version) Sets the version of LDAP to use.
void	unbind() Issues an unbind request.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_PORT

public static final int DEFAULT_PORT

The default LDAP port.

See Also:

Constant Field Values

SCOPE_BASE_OBJECT

public static final int SCOPE_BASE_OBJECT

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Constant Field Values

SCOPE_SINGLE_LEVEL

public static final int SCOPE_SINGLE_LEVEL

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Constant Field Values

SCOPE_WHOLE_SUBTREE

public static final int SCOPE_WHOLE_SUBTREE

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Constant Field Values

DEREF_NEVER

public static final int DEREF_NEVER

Do not dereference aliases in searching or in locating the base object of the search.

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Constant Field Values

DEREF_IN_SEARCHING

public static final int DEREF_IN_SEARCHING

Dereference aliases in subordinates of the base object in searching, but not in locating the base object of the search.

See Also:

Constant Field Values

DEREF_FINDING_BASE_OBJ

public static final int DEREF_FINDING_BASE_OBJ

Dereference aliases in locating the base object of the search, but not when searching subordinates of the base object.

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Constant Field Values

DEREF_ALWAYS

public static final int DEREF_ALWAYS

Dereference aliases both in searching and in locating the base object of the search.

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Constant Field Values

host

protected String host

port

protected int port

version

protected int version

Constructor Detail

LDAPConnection

public LDAPConnection(String host)
               throws IOException

Creates a new LDAP connection to the specified host, using the default LDAP port.

Parameters:

host - the host

Throws:

IOException

LDAPConnection

public LDAPConnection(String host,
                      int port)
               throws IOException

Creates a new LDAP connection to the specified host and port.

Parameters:

host - the host

port - the port

Throws:

IOException

LDAPConnection

public LDAPConnection(String host,
                      int port,
                      int connectionTimeout,
                      int timeout)
               throws IOException

Creates a new LDAP connection to the specified host, port, and timeouts.

Parameters:

host - the host

port - the port

connectionTimeout - the connection timeout in ms

timeout - the socket I/O timeout in ms

Throws:

IOException

Method Detail

setVersion

public void setVersion(int version)

Sets the version of LDAP to use. This implementation supports versions 2 and 3.

Parameters:

version - the LDAP version

bind

public LDAPResult bind(String name,
                       String mechanism,
                       byte[] credentials,
                       Control[] controls)
                throws IOException

Initiates a bind operation to authenticate the client to the server.

Parameters:

name - the LDAP DN to authenticate to, or null for anonymous binding

mechanism - the SASL mechanism to use, or null for simple authentication

credentials - the security credentials to use

Returns:

the LDAP result

Throws:

IOException

unbind

public void unbind()
            throws IOException

Issues an unbind request. This indicates to the server that the client has no more requests to issue and will terminate the connection. After invoking this method, no further methods may be invoked.

Throws:

IOException

search

public LDAPResult search(String name,
                         int scope,
                         int derefAliases,
                         int sizeLimit,
                         int timeLimit,
                         boolean typesOnly,
                         String filter,
                         String[] attributes,
                         Control[] controls,
                         ResultHandler handler)
                  throws IOException

Issues a search request.

Parameters:

name - the LDAP DN that is the base object entry relative to which the search is to be performed

scope - the search scope, one of the SCOPE_* constants

derefAliases - whether to dereference aliases, one of the DEREF_* constants

sizeLimit - the maximum number of entries to return, or 0 for no restriction

timeLimit - the maximum time in seconds permitted for the search, or 0 for no restriction

typesOnly - whether to return only attribute types(true) or both attribute types and values(false)

filter - the search filter in RFC2254 format

attributes - the IDs of the attributes to return

controls - the request controls

handler - the result handler to receive notification of results

Returns:

the LDAP result

Throws:

IOException

modify

public LDAPResult modify(String name,
                         Modification[] modifications)
                  throws IOException

Issues a modify request.

Parameters:

name - the LDAP DN of the object to be modified(alias dereferencing will not be performed)

modifications - a sequence of modifications to be executed to be executed

Throws:

IOException

See Also:

Modification

add

public LDAPResult add(String name,
                      AttributeValues[] attributes)
               throws IOException

Requests the addition of a new entry into the directory.

Parameters:

name - the LDAP DN of the new entry

attributes - a sequence of attributes to assign to the new entry

Throws:

IOException

delete

public LDAPResult delete(String name)
                  throws IOException

Requests the removal of an entry from the directory.

Parameters:

name - the LDAP DN of the entry to remove

Throws:

IOException

modifyDN

public LDAPResult modifyDN(String name,
                           String newRDN,
                           boolean deleteOldRDN,
                           String newSuperior)
                    throws IOException

Changes the leftmost(least significant) component of the name of an entry in the directory, or move a subtree of entries to a new location in the directory.

Parameters:

name - the LDAP DN of the entry to be changed

newRDN - the RDN that will form the leftmost component of the new name of the entry

deleteOldRDN - if false, the old RDN values will be retained as attributes of the entry, otherwise they are deleted from the entry

newSuperior - if non-null, the DN of the entry to become the immediate superior of the existing entry

Throws:

IOException