com.novell.ldap.LDAPConstraints Maven / Gradle / Ivy
/* **************************************************************************
* $OpenLDAP: pkg/jldap/com/novell/ldap/LDAPConstraints.java,v 1.34 2004/01/16 04:46:25 sunilk Exp $
*
* Copyright (C) 1999 - 2002 Novell, Inc. All Rights Reserved.
*
* THIS WORK IS SUBJECT TO U.S. AND INTERNATIONAL COPYRIGHT LAWS AND
* TREATIES. USE, MODIFICATION, AND REDISTRIBUTION OF THIS WORK IS SUBJECT
* TO VERSION 2.0.1 OF THE OPENLDAP PUBLIC LICENSE, A COPY OF WHICH IS
* AVAILABLE AT HTTP://WWW.OPENLDAP.ORG/LICENSE.HTML OR IN THE FILE "LICENSE"
* IN THE TOP-LEVEL DIRECTORY OF THE DISTRIBUTION. ANY USE OR EXPLOITATION
* OF THIS WORK OTHER THAN AS AUTHORIZED IN VERSION 2.0.1 OF THE OPENLDAP
* PUBLIC LICENSE, OR OTHER PRIOR WRITTEN CONSENT FROM NOVELL, COULD SUBJECT
* THE PERPETRATOR TO CRIMINAL AND CIVIL LIABILITY.
******************************************************************************/
package com.novell.ldap;
import java.util.Hashtable;
import com.novell.ldap.client.Debug;
/**
* Defines options controlling LDAP operations on the directory.
*
* An LDAPConstraints object is always associated with an LDAPConnection
* object; its values can be changed with LDAPConnection.setConstraints, or
* overridden by passing an LDAPConstraints object to an operation.
*
* @see LDAPConnection#setConstraints(LDAPConstraints)
*/
public class LDAPConstraints implements Cloneable, java.io.Serializable {
private int msLimit = 0;
private int hopLimit = 10;
private boolean doReferrals = false;
private LDAPReferralHandler refHandler = null;
private LDAPControl[] controls = null;
private static Object nameLock = new Object();// protect agentNum
private static int lConsNum = 0; // Debug, LDAPConstraints num
private String name; // String name for debug
private Hashtable properties = null; // Properties
/**
* Constructs a new LDAPConstraints object that specifies the default
* set of constraints.
*/
public LDAPConstraints()
{
// Get a unique constraints name for debug
if( Debug.LDAP_DEBUG) {
synchronized( nameLock) {
name = "LDAPConstraints(" + ++lConsNum + "): ";
}
Debug.trace( Debug.apiRequests, name +
"Created, follow referrals = " + doReferrals);
}
return;
}
/**
* Constructs a new LDAPConstraints object specifying constraints that
* control wait time, and referral handling.
*
* @param msLimit The maximum time in milliseconds to wait for results.
* The default is 0, which means that there is no
* maximum time limit. This limit is enforced for an
* operation by the API, not by the server.
* The operation will be abandoned and terminated by the
* API with a result code of LDAPException.LDAP_TIMEOUT
* if the operation exceeds the time limit.
*
* @param doReferrals Determines whether to automatically follow
* referrals or not. Specify true to follow
* referrals automatically, and false to throw
* an LDAPReferralException if the server responds
* with a referral. False is the default value.
* The way referrals are followed automatically is
* determined by the setting of the handler parameter.
* It is ignored for asynchronous operations.
*
* @param handler The custom authentication handler called when
* LDAPConnection needs to authenticate, typically on
* following a referral. A null may be specified to
* indicate default authentication processing, i.e.
* referrals are followed with anonymous authentication.
* The handler object may be an implemention of either the
* LDAPBindHandler or LDAPAuthHandler interface.
* The implementation of these interfaces determines how
* authentication is performed when following referrals.
* It is ignored for asynchronous operations.
*
* @param hop_limit The maximum number of referrals to follow in a
* sequence during automatic referral following.
* The default value is 10. A value of 0 means no limit.
* The operation will be abandoned and terminated by the
* API with a result code of
* LDAPException.REFERRAL_LIMIT_EXCEEDED if the
* number of referrals in a sequence exceeds the limit.
* It is ignored for asynchronous operations.
*
* @see LDAPException#LDAP_TIMEOUT
* @see LDAPException#REFERRAL_LIMIT_EXCEEDED
* @see LDAPException#REFERRAL
* @see LDAPReferralException
* @see LDAPBindHandler
* @see LDAPAuthHandler
*/
public LDAPConstraints(int msLimit,
boolean doReferrals,
LDAPReferralHandler handler,
int hop_limit)
{
this.msLimit = msLimit;
this.doReferrals = doReferrals;
this.refHandler = handler;
this.hopLimit = hop_limit;
// Get a unique constraints name for debug
if( Debug.LDAP_DEBUG) {
synchronized( nameLock) {
name = "LDAPConstraints(" + ++lConsNum + "): ";
}
Debug.trace( Debug.apiRequests, name +
"Created, follow referrals = " + doReferrals);
}
return;
}
/**
* Returns the controls to be sent to the server.
*
* @return The controls to be sent to the server, or null if none.
*
* @see #setControls(LDAPControl)
* @see #setControls(LDAPControl[])
*/
public LDAPControl[] getControls()
{
return controls;
}
/**
* Returns the maximum number of referrals to follow during automatic
* referral following. The operation will be abandoned and terminated by
* the API with a result code of LDAPException.REFERRAL_LIMIT_EXCEEDED
* if the number of referrals in a sequence exceeds the limit.
* It is ignored for asynchronous operations.
*
* @return The maximum number of referrals to follow in sequence
*
* @see #setHopLimit(int)
* @see LDAPException#REFERRAL_LIMIT_EXCEEDED
*/
public int getHopLimit()
{
return hopLimit;
}
/**
* Gets a property of the constraints object which has been
* assigned with {@link #setProperty(String, Object)}.
*
* @param name Name of the property to be returned.
*
* @return the object associated with the property,
* or null if the property is not set.
*
* @see #setProperty(String, Object)
* @see LDAPConnection#getProperty(String)
*/
public Object getProperty(String name)
{
if( properties == null) {
return null; // Requested property not available.
}
return properties.get( name);
}
/**
* Gets all the properties of the constraints object which has been
* assigned with {@link #setProperty(String, Object)}.
* A value of null is returned if no properties are defined.
*
* @see #setProperty(String, Object)
* @see LDAPConnection#getProperty(String)
*/
/* package */
Hashtable getProperties()
{
return properties;
}
/**
* Specified whether or not referrals are followed automatically.
*
* @return True if referrals are followed automatically, or
* false if referrals throw an LDAPReferralException.
*/
public boolean getReferralFollowing()
{
return doReferrals;
}
/**
* Returns an object that can process authentication for automatic
* referral handling.
*
* It may be null.
*
* @return An LDAPReferralHandler object that can process authentication.
*/
/*package*/
LDAPReferralHandler getReferralHandler()
{
return refHandler;
}
/**
* Returns the maximum number of milliseconds to wait for any operation
* under these constraints.
*
* If the value is 0, there is no maximum time limit on waiting
* for operation results. The actual granularity of the timeout depends
* platform. This limit is enforced the the API on an
* operation, not by the server.
* The operation will be abandoned and terminated by the
* API with a result code of LDAPException.LDAP_TIMEOUT if the
* operation exceeds the time limit.
*
* @return The maximum number of milliseconds to wait for the operation.
*
* @see LDAPException#LDAP_TIMEOUT
*/
public int getTimeLimit()
{
return msLimit;
}
/**
* Sets a single control to be sent to the server.
*
* @param control A single control to be sent to the server or
* null if none.
*/
public void setControls(LDAPControl control)
{
if( control == null) {
this.controls = null;
return;
}
this.controls = new LDAPControl[1];
this.controls[0] = (LDAPControl)control.clone();
return;
}
/**
* Sets controls to be sent to the server.
*
* @param controls An array of controls to be sent to the server or
* null if none.
*/
public void setControls(LDAPControl[] controls)
{
if( (controls == null) || (controls.length == 0)) {
this.controls = null;
return;
}
this.controls = new LDAPControl[controls.length];
for( int i=0; iNo property names have been defined at this time, but the
* mechanism is in place in order to support revisional as well as
* dynamic and proprietary extensions to operation modifiers.
*
* @param name Name of the property to set.
*
* @param value Value to assign to the property.
* property is not supported.
*
* @throws NullPointerException if name or value are null
*
* @see #getProperty(String )
* @see LDAPConnection#getProperty(String)
*/
public void setProperty(String name, Object value)
throws LDAPException
{
if( properties == null) {
properties = new Hashtable();
}
properties.put( name, value);
return;
}
/**
* Sets all the properties of the constraints object.
*
* @param props the properties represented by the Hashtable object to set.
*/
/* package */ void setProperties(Hashtable props)
{
properties = (Hashtable)props.clone();
return;
}
/**
* Specifies whether referrals are followed automatically or if
* referrals throw an LDAPReferralException.
*
* Referrals of any type other than to an LDAP server (for example, a
* referral URL other than ldap://something) are ignored on automatic
* referral following.
*
* The default is false.
*
* @param doReferrals True to follow referrals automatically.
* False to throw an LDAPReferralException if
* the server returns a referral.
*/
public void setReferralFollowing(boolean doReferrals)
{
this.doReferrals = doReferrals;
if( Debug.LDAP_DEBUG) {
Debug.trace( Debug.apiRequests, name +
"Follow referrals = " + doReferrals);
}
return;
}
/**
* Specifies the object that will process authentication requests
* during automatic referral following.
*
* The default is null.
*
* @param handler An object that implements LDAPBindHandler or
* LDAPAuthHandler
*
* @see LDAPAuthHandler
* @see LDAPBindHandler
*/
public void setReferralHandler(LDAPReferralHandler handler)
{
refHandler = handler;
return;
}
/**
* Sets the maximum number of milliseconds the client waits for
* any operation under these constraints to complete.
*
* If the value is 0, there is no maximum time limit enforced by the
* API on waiting for the operation results. The actual granularity of
* the timeout depends on the platform.
* The operation will be abandoned and terminated by the
* API with a result code of LDAPException.LDAP_TIMEOUT if the
* operation exceeds the time limit.
*
* @param msLimit The maximum milliseconds to wait.
*
* @see LDAPException#LDAP_TIMEOUT
*/
public void setTimeLimit(int msLimit)
{
this.msLimit = msLimit;
return;
}
/**
* Clones an LDAPConstraints object.
*
* @return An LDAPConstraints object.
*/
public Object clone()
{
try {
Object newObj = super.clone();
if( controls != null) {
((LDAPConstraints)newObj).controls = (LDAPControl[])controls.clone();
}
if( properties != null) {
((LDAPConstraints)newObj).properties = (Hashtable)properties.clone();
}
return newObj;
} catch( CloneNotSupportedException ce) {
throw new RuntimeException("Internal error, cannot create clone");
}
}
/**
* Writes the object state to a stream in standard Default Binary format
* This function wraps ObjectOutputStream' s defaultWriteObject() to write
* the non-static and non-transient fields of the current class to the stream
*
* @param objectOStrm The OutputSteam where the Object need to be written
*/
private void writeObject(java.io.ObjectOutputStream objectOStrm)
throws java.io.IOException {
objectOStrm.defaultWriteObject();
}
/**
* Reads the serialized object from the underlying input stream.
* This function wraps ObjectInputStream's defaultReadObject() function
*
* @param objectIStrm InputStream used to recover those objects previously serialized.
*/
private void readObject(java.io.ObjectInputStream objectIStrm)
throws java.io.IOException, ClassNotFoundException
{
objectIStrm.defaultReadObject();
}
}
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