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Java > Open Source Codes > org > netbeans > modules > xml > wsdl > ui > spi > WSDLLookupProviderFactory


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 1997-2007 Sun
17  * Microsystems, Inc. All Rights Reserved.
18  */
19
20 package org.netbeans.modules.xml.wsdl.ui.spi;
21
22 import java.util.ArrayList JavaDoc;
23 import java.util.List JavaDoc;
24
25 import org.openide.util.Lookup;
26
27 public class WSDLLookupProviderFactory {
28     private static List JavaDoc<WSDLLookupProvider> providers;
29
30     public static <T> T getObject(String JavaDoc namespace, Class JavaDoc<T> className ) {
31         if (providers == null) {
32             lookupFactories();
33         }
34
35         for (WSDLLookupProvider provider : providers) {
36             if (provider.getProvider(namespace) != null) {
37                 return className.cast(provider.getProvider(namespace).getLookup().lookup(className));
38             }
39         }
40
41         return null;
42     }
43
44     private static synchronized void lookupFactories() {
45         if(providers != null)
46             return;
47         
48         providers = new ArrayList JavaDoc<WSDLLookupProvider>();
49         
50         Lookup.Result result = Lookup.getDefault().lookup(
51                 new Lookup.Template(WSDLLookupProvider.class));
52         
53         for(Object JavaDoc obj: result.allInstances()) {
54             WSDLLookupProvider factory = (WSDLLookupProvider) obj;
55             providers.add(factory);
56         }
57         
58     }
59 }
60
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