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Library for performing common LDAP operations
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/*
  $Id: CompareLdapValidator.java 1330 2010-05-23 22:10:53Z dfisher $

  Copyright (C) 2003-2010 Virginia Tech.
  All rights reserved.

  SEE LICENSE FOR MORE INFORMATION

  Author:  Middleware Services
  Email:   [email protected]
  Version: $Revision: 1330 $
  Updated: $Date: 2010-05-23 18:10:53 -0400 (Sun, 23 May 2010) $
*/
package edu.vt.middleware.ldap.pool;

import javax.naming.NamingException;
import edu.vt.middleware.ldap.Ldap;
import edu.vt.middleware.ldap.SearchFilter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * CompareLdapValidator validates an ldap connection is healthy by
 * performing a compare operation.
 *
 * @author  Middleware Services
 * @version  $Revision: 1330 $ $Date: 2010-05-23 18:10:53 -0400 (Sun, 23 May 2010) $
 */
public class CompareLdapValidator implements LdapValidator
{

  /** Log for this class. */
  protected final Log logger = LogFactory.getLog(this.getClass());

  /** DN for validating connections. Default value is {@value}. */
  private String validateDn = "";

  /** Filter for validating connections. Default value is {@value}. */
  private SearchFilter validateFilter = new SearchFilter("(objectClass=*)");


  /** Default constructor. */
  public CompareLdapValidator() {}


  /**
   * Creates a new CompareLdapValidator with the supplied compare
   * dn and filter.
   *
   * @param  dn  to use for compares
   * @param  filter  to use for compares
   */
  public CompareLdapValidator(final String dn, final SearchFilter filter)
  {
    this.validateDn = dn;
    this.validateFilter = filter;
  }


  /**
   * Returns the validate DN.
   *
   * @return  validate DN
   */
  public String getValidateDn()
  {
    return this.validateDn;
  }


  /**
   * Returns the validate filter.
   *
   * @return  validate filter
   */
  public SearchFilter getValidateFilter()
  {
    return this.validateFilter;
  }


  /**
   * Sets the validate DN.
   *
   * @param  s  DN
   */
  public void setValidateDn(final String s)
  {
    this.validateDn = s;
  }


  /**
   * Sets the validate filter.
   *
   * @param  filter  to compare with
   */
  public void setValidateFilter(final SearchFilter filter)
  {
    this.validateFilter = filter;
  }


  /** {@inheritDoc} */
  public boolean validate(final Ldap l)
  {
    boolean success = false;
    if (l != null) {
      try {
        success = l.compare(this.validateDn, this.validateFilter);
      } catch (NamingException e) {
        if (this.logger.isDebugEnabled()) {
          this.logger.debug(
            "validation failed for compare " + this.validateFilter,
            e);
        }
      }
    }
    return success;
  }
}