Examples of javax.naming.ldap.LdapContext

javax.naming.ldap.LdapContext
An LdapContext is used when LDAPv3 extended operations and/or controls are required.
Extended operations are dealt with by the extendedOperation method. All other methods relate to the use of controls. Controls are extra information provided to or from an LDAP v3 server. Controls are either of the type Request or Reponse. There is a special type of request controls known as connection controls.

Connection controls are used by a service provider when connecting or reconnecting to an LDAP server. These are associated with connections and are inherited by derived Context. It should be noted however that subsequent changes to a derived Context's own connection controls has no impact on the Context from which it inherited. There are a number of environment properties which relate specifically to LDAP service providers. The one which is important here is: java.naming.ldap.control.connect which holds the array of connection controls for a Context. Service providers rely on this to pass on the connection controls to derived Context.

Request controls are used by a service provider when performing operations other than connecting or reconnecting. These are referred to as Context Request Controls as they relate to the specific Context instance. It must be noted that, unlike connection controls, they are not inherited. Connection and request controls being split like this allows service provider implementations to pool connections.

Response controls are generated by an LDAPv3 server.
@see DirContext

        controls.setSearchScope( SearchControls.OBJECT_SCOPE );
        controls.setDerefLinkFlag( false );
        controls.setReturningAttributes( new String[]
            { "*", "+" } );


        LdapContext nullRootCtx = getRootContext( getService() );


        NamingEnumeration<SearchResult> list = nullRootCtx.search( "", "(objectClass=*)", controls );
        Attributes rootDse = null;


        while ( list.hasMore() )
        {
            SearchResult result = list.next();

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    {
        SearchControls controls = new SearchControls();
        controls.setSearchScope( SearchControls.ONELEVEL_SCOPE );
        controls.setDerefLinkFlag( false );


        LdapContext nullRootCtx = getRootContext( getService() );


        NamingEnumeration<SearchResult> list = nullRootCtx.search( "", "(cn=*)", controls );
        HashMap<String, Attributes> map = new HashMap<String, Attributes>();


        while ( list.hasMore() )
        {
            SearchResult result = list.next();

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        controls.setSearchScope( SearchControls.SUBTREE_SCOPE );
        controls.setDerefLinkFlag( false );
        controls.setReturningAttributes( new String[]
            { "*", "+" } );


        LdapContext nullRootCtx = getRootContext( getService() );


        NamingEnumeration<SearchResult> list = nullRootCtx.search( "", "(ou=testing01)", controls );
        Attributes rootDse = null;


        while ( list.hasMore() )
        {
            SearchResult result = list.next();

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      String groupDN = ldapAttrMapping.groupDNKey + "=" + child.getGroupName() + "," + searchBase;
      String filter = ldapAttrMapping.groupNameAttr + "=" + child.getGroupName();


      SearchControls constraints = new SearchControls();
      constraints.setSearchScope(SearchControls.ONELEVEL_SCOPE);
      LdapContext ctx = ldapService.getLdapContext();
      try
      {
         NamingEnumeration<SearchResult> results = null;
         for (int err = 0;; err++)
         {
            try
            {
               results = ctx.search(searchBase, filter, constraints);


               if (results.hasMore())
               {
                  if (LOG.isDebugEnabled())
                  {
                     LOG.debug("Group " + child + ", parent  " + parent + " already exists. ");
                  }
                  throw new Exception("Group " + child + ", parent  " + parent + " already exists. ");
               }


               GroupImpl group = (GroupImpl)child;
               if (broadcast)
               {
                  preSave(group, true);
               }


               ctx.createSubcontext(groupDN, ldapAttrMapping.groupToAttributes(child));
               cacheHandler.put(child.getId(), group, CacheType.GROUP);


               if (broadcast)
               {
                  postSave(group, true);

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   /**
    * {@inheritDoc}
    */
   public void saveGroup(Group group, boolean broadcast) throws Exception
   {
      LdapContext ctx = ldapService.getLdapContext();
      try
      {
         for (int err = 0;; err++)
         {
            try
            {
               Group parent = findGroupById(ctx, group.getParentId());
               setId(parent, group);
               String groupDN = ldapAttrMapping.groupDNKey + "=" + group.getGroupName() + "," + createSubDN(parent);


               ArrayList<ModificationItem> modifications = new ArrayList<ModificationItem>();
               ModificationItem mod =
                  new ModificationItem(DirContext.REPLACE_ATTRIBUTE, new BasicAttribute(
                     ldapAttrMapping.ldapDescriptionAttr, group.getDescription()));
               modifications.add(mod);


               mod =
                  new ModificationItem(DirContext.REPLACE_ATTRIBUTE, new BasicAttribute(ldapAttrMapping.groupLabelAttr,
                     group.getLabel()));
               modifications.add(mod);


               ModificationItem[] mods = new ModificationItem[modifications.size()];
               modifications.toArray(mods);
               if (broadcast)
                  preSave(group, true);
               ctx.modifyAttributes(groupDN, mods);
               if (broadcast)
                  postSave(group, true);


               cacheHandler.put(group.getId(), group, CacheType.GROUP);
               return;

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            buffer.append(ldapAttrMapping.groupDNKey + "=" + dnParts[x] + ", ");
         }
      }
      buffer.append(groupsBaseDN);


      LdapContext ctx = ldapService.getLdapContext();
      String searchBase = buffer.toString();
      String filter = ldapAttrMapping.groupObjectClassFilter;
      SearchControls constraints = new SearchControls();
      constraints.setSearchScope(SearchControls.ONELEVEL_SCOPE);
      try
      {
         NamingEnumeration<SearchResult> results = null;
         for (int err = 0;; err++)
         {
            try
            {
               try
               {
                  results = ctx.search(searchBase, filter, constraints);
               }
               catch (NamingException e1)
               {
                  // if connection error let process it in common way
                  if (isConnectionError(e1))

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   {
      String filter = ldapAttrMapping.groupNameAttr + "=" + group.getGroupName();
      String searchBase = this.createSubDN(group.getParentId());
      SearchControls constraints = new SearchControls();
      constraints.setSearchScope(SearchControls.ONELEVEL_SCOPE);
      LdapContext ctx = ldapService.getLdapContext();


      try
      {
         NamingEnumeration<SearchResult> results = null;
         for (int err = 0;; err++)
         {
            try
            {
               results = ctx.search(searchBase, filter, constraints);


               if (!results.hasMoreElements())
               {
                  if (LOG.isDebugEnabled())
                  {

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    * {@inheritDoc}
    */
   public Collection<Group> findGroupByMembership(String userName, String membershipType) throws Exception
   {
      List<Group> groups = new ArrayList<Group>();
      LdapContext ctx = ldapService.getLdapContext();
      try
      {
         NamingEnumeration<SearchResult> results = null;
         for (int err = 0;; err++)
         {
            groups.clear();
            try
            {
               String userDN = getDNFromUsername(ctx, userName);
               if (userDN == null)
               {
                  return groups;
               }
               String filter =
                  "(&(" + ldapAttrMapping.membershipTypeMemberValue + "=" + userDN + ")("
                     + ldapAttrMapping.membershipTypeRoleNameAttr + "=" + membershipType + "))";
               SearchControls constraints = new SearchControls();
               constraints.setSearchScope(SearchControls.SUBTREE_SCOPE);


               results = ctx.search(ldapAttrMapping.groupsURL, filter, constraints);
               while (results.hasMoreElements())
               {
                  SearchResult sr = results.next();
                  NameParser parser = ctx.getNameParser("");
                  Name entryNameName = parser.parse(new CompositeName(sr.getName()).get(0));
                  String entryName =
                     String.valueOf(entryNameName).substring(entryNameName.getSuffix(1).toString().length() + 1);
                  String groupDN = entryName + "," + ldapAttrMapping.groupsURL;
                  Group group = getGroupByDN(ctx, groupDN);

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         buffer.append("/" + groupIdParts[x]);
         if (x == (groupIdParts.length - 2))
            parentId = buffer.toString();
      }
      String groupDN = getGroupDNFromGroupId(groupId);
      LdapContext ctx = ldapService.getLdapContext();
      try
      {
         for (int err = 0;; err++)
         {
            try
            {
               Attributes attrs = ctx.getAttributes(groupDN);
               group = ldapAttrMapping.attributesToGroup(attrs);
               ((GroupImpl)group).setId(groupId);
               ((GroupImpl)group).setParentId(parentId);


               if (group != null)

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      List<Group> groups = new ArrayList<Group>();


      SearchControls constraints = new SearchControls();
      constraints.setSearchScope(SearchControls.SUBTREE_SCOPE);


      LdapContext ctx = ldapService.getLdapContext();
      String groupName = "*";
      try
      {
         NamingEnumeration<SearchResult> results = null;
         for (int err = 0;; err++)
         {
            groups.clear();
            try
            {
               try
               {
                  results =
                     ctx.search(ldapAttrMapping.groupsURL, "(" + ldapAttrMapping.groupNameAttr + "=" + groupName + ")",
                        constraints);
               }
               catch (NamingException e1)
               {
                  // if connection error let process it in common way
                  if (isConnectionError(e1))
                     throw e1;
                  if (LOG.isDebugEnabled())
                     LOG.debug("Failed to get all groups. ", e1);
                  return groups;
               }
               while (results.hasMoreElements())
               {
                  SearchResult sr = results.next();
                  NameParser parser = ctx.getNameParser("");
                  CompositeName name = new CompositeName(sr.getName());
                  if (name.size() > 0)
                  {
                     Name entryName = parser.parse(name.get(0));
                     String groupDN = entryName + "," + ldapAttrMapping.groupsURL;

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