OPENDJ-2655 Optimize Group implementations by lazily creating examined groups

Nicolas Capponi

17.22.2016 a381819e25430ccca6f3d5645d7422d1dda97c1c

 opendj-server-legacy/src/main/java/org/opends/server/api/Group.java

@@ -18,6 +18,7 @@

import java.util.List;
import java.util.Set;
import java.util.concurrent.atomic.AtomicReference;

import org.forgerock.i18n.LocalizableMessage;
import org.forgerock.opendj.config.server.ConfigException;
@@ -263,7 +264,7 @@
   */
  public boolean isMember(DN userDN) throws DirectoryException
  {
    return userDN != null && isMember(userDN, new HashSet<DN>());
    return userDN != null && isMember(userDN, new AtomicReference<Set<DN>>());
  }

  /**
@@ -297,7 +298,7 @@
   * @throws  DirectoryException  If a problem occurs while attempting
   *                              to make the determination.
   */
  public abstract boolean isMember(DN userDN, Set<DN> examinedGroups)
  public abstract boolean isMember(DN userDN, AtomicReference<Set<DN>> examinedGroups)
         throws DirectoryException;

  /**
@@ -317,7 +318,7 @@
  public boolean isMember(Entry userEntry)
         throws DirectoryException
  {
    return isMember(userEntry, new HashSet<DN>());
    return isMember(userEntry, new AtomicReference<Set<DN>>());
  }

  /**
@@ -351,8 +352,7 @@
   * @throws  DirectoryException  If a problem occurs while attempting
   *                              to make the determination.
   */
  public abstract boolean isMember(Entry userEntry,
                                   Set<DN> examinedGroups)
  public abstract boolean isMember(Entry userEntry, AtomicReference<Set<DN>> examinedGroups)
         throws DirectoryException;

  /**