1 /*
   2  * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import javax.naming.Context;
  25 import javax.naming.Name;
  26 import javax.naming.NamingException;
  27 import javax.naming.directory.Attribute;
  28 import javax.naming.directory.Attributes;
  29 import javax.naming.directory.DirContext;
  30 import javax.naming.spi.ObjectFactory;
  31 import java.util.Hashtable;
  32 
  33 public class TxtFactory implements ObjectFactory {
  34     @Override public Object getObjectInstance(Object obj, Name name,
  35             Context nameCtx, Hashtable<?, ?> environment) {
  36         System.out.println(
  37                 this.getClass().getName() + ".getObjectInstance(): " + name);
  38 
  39         // alternatively, could use ctx/name pair
  40 
  41         if (obj instanceof DirContext) {
  42             DirContext thisCtx = (DirContext) obj;
  43             try {
  44                 Attributes attrs = thisCtx.getAttributes("");
  45                 Attribute txt = attrs.get("TXT");
  46                 if (txt != null) {
  47                     return new TestDnsObject(txt);
  48                 }
  49             } catch (NamingException e) {
  50                 // debug
  51                 e.printStackTrace();
  52             }
  53         }
  54 
  55         // return null to indicate other factories should be tried
  56         return null;
  57     }
  58 }