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Java > Open Source Codes > org > netbeans > modules > j2ee > ddloaders > app > EarDDUtils


1 /*
2  * The contents of this file are subject to the terms of the Common Development
3  * and Distribution License (the License). You may not use this file except in
4  * compliance with the License.
5  *
6  * You can obtain a copy of the License at http://www.netbeans.org/cddl.html
7  * or http://www.netbeans.org/cddl.txt.
8  *
9  * When distributing Covered Code, include this CDDL Header Notice in each file
10  * and include the License file at http://www.netbeans.org/cddl.txt.
11  * If applicable, add the following below the CDDL Header, with the fields
12  * enclosed by brackets [] replaced by your own identifying information:
13  * "Portions Copyrighted [year] [name of copyright owner]"
14  *
15  * The Original Software is NetBeans. The Initial Developer of the Original
16  * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 package org.netbeans.modules.j2ee.ddloaders.app;
21
22 import java.io.IOException JavaDoc;
23 import java.io.InputStream JavaDoc;
24 import org.netbeans.modules.schema2beans.BaseBean;
25 import org.netbeans.modules.j2ee.dd.api.common.CommonDDBean;
26 import org.netbeans.modules.j2ee.dd.api.application.DDProvider;
27 import org.netbeans.modules.j2ee.dd.impl.application.ApplicationProxy;
28 import org.netbeans.modules.j2ee.dd.api.application.Application;
29 import org.xml.sax.InputSource JavaDoc;
30 import org.xml.sax.SAXException JavaDoc;
31
32
33 /**
34  *
35  * @author mkuchtiak
36  */
37 public class EarDDUtils {
38      private EarDDUtils() {}
39      
40     /** Finds a name similar to requested that uniquely identifies
41      * element between the other elements of the same name.
42      *
43      * @param elements checked elements
44      * @param identifier name of tag that contains identification value
45      * @param o object to be checked
46      * @return a free element name
47      */
48     public static String JavaDoc findFreeName (CommonDDBean[] elements, String JavaDoc identifier, String JavaDoc name) {
49         if (checkFreeName (elements, identifier, name)) {
50             return name;
51         }
52         for (int i = 1;;i++) {
53             String JavaDoc destName = name + "_"+i; // NOI18N
54 if (checkFreeName (elements, identifier, destName)) {
55                 return destName;
56             }
57         }
58     }
59     
60     /** Test if given name is free in given context.
61      * @param elements checked elements
62      * @param identifier name of tag that contains identification value
63      * @param o object to be checked
64      * @return true, if such name does not exists
65      */
66     private static boolean checkFreeName (CommonDDBean [] elements, String JavaDoc identifier, Object JavaDoc o) {
67         for (int i=0; i<elements.length; i++) {
68             Object JavaDoc val = elements[i].getValue (identifier);
69             if (val != null && val.equals (o)) {
70                 return false;
71             }
72         }
73         return true;
74     }
75
76     /** Convenient method for getting the BaseBean object from CommonDDBean object
77     */
78     public static BaseBean getBaseBean(CommonDDBean bean) {
79         if (bean instanceof BaseBean) return (BaseBean)bean;
80         else if (bean instanceof ApplicationProxy) return (BaseBean) ((ApplicationProxy)bean).getOriginal();
81         return null;
82     }
83     
84     public static Application createApplication(InputSource JavaDoc is) throws IOException JavaDoc, SAXException JavaDoc {
85         return DDProvider.getDefault().getDDRoot(is);
86     }
87 }
88
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