1 /*
   2  * Copyright (c) 1997, 2012, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.tools.internal.ws.wsdl.framework;
  27 
  28 import com.sun.tools.internal.ws.api.wsdl.TWSDLExtension;
  29 
  30 import java.util.ArrayList;
  31 import java.util.Iterator;
  32 import java.util.List;
  33 
  34 /**
  35  * A helper class for extensible entities.
  36  *
  37  * @author WS Development Team
  38  */
  39 public class ExtensibilityHelper {
  40 
  41     public ExtensibilityHelper() {
  42     }
  43 
  44     public void addExtension(TWSDLExtension e) {
  45         if (_extensions == null) {
  46             _extensions = new ArrayList();
  47         }
  48         _extensions.add(e);
  49     }
  50 
  51     public Iterable<TWSDLExtension> extensions() {
  52         if (_extensions == null) {
  53             return new ArrayList<TWSDLExtension>();
  54         } else {
  55             return _extensions;
  56         }
  57     }
  58 
  59     public void withAllSubEntitiesDo(EntityAction action) {
  60         if (_extensions != null) {
  61             for (Iterator iter = _extensions.iterator(); iter.hasNext();) {
  62                 action.perform((Entity) iter.next());
  63             }
  64         }
  65     }
  66 
  67     public void accept(ExtensionVisitor visitor) throws Exception {
  68         if (_extensions != null) {
  69             for (Iterator iter = _extensions.iterator(); iter.hasNext();) {
  70                 ((ExtensionImpl) iter.next()).accept(visitor);
  71             }
  72         }
  73     }
  74 
  75     private List<TWSDLExtension> _extensions;
  76 }