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1 package com.genimen.djeneric.tools.specifier.menusystem;
2
3 import java.io.BufferedInputStream  ;
4 import java.io.BufferedReader ;
5 import java.io.IOException ;
6 import java.io.InputStream ;
7 import java.io.InputStreamReader ;
8 import java.util.ArrayList ;
9
10 import javax.swing.JMenu ;
11 import javax.swing.JMenuItem ;
12 import javax.xml.parsers.DocumentBuilderFactory ;
13 import javax.xml.parsers.ParserConfigurationException ;
14 import javax.xml.transform.TransformerException ;
15
16 import org.apache.xpath.XPathAPI;
17 import org.w3c.dom.Document ;
18 import org.w3c.dom.Element ;
19 import org.w3c.dom.traversal.NodeIterator;
20 import org.xml.sax.InputSource ;
21 import org.xml.sax.SAXException ;
22
23 import com.genimen.djeneric.repository.exceptions.DjenericException;
24 import com.genimen.djeneric.tools.specifier.interfaces.DjenericEditorEnvironment;
25 import com.genimen.djeneric.tools.specifier.interfaces.MenuExtension;
26
27 public class MenuFactory
28 {
29 DjenericEditorEnvironment _environment;
30
31 public MenuFactory(DjenericEditorEnvironment environment)
32 {
33 _environment = environment;
34 }
35
36 public JMenu [] createMenus(InputStream stream) throws SAXException , IOException , ParserConfigurationException ,
37 TransformerException , DjenericException, ClassNotFoundException , InstantiationException , IllegalAccessException
38 {
39 ArrayList result = new ArrayList ();
40 InputSource is = new InputSource (new BufferedInputStream (stream));
41 DocumentBuilderFactory dfactory = DocumentBuilderFactory.newInstance();
42
43 Document xmlDoc = dfactory.newDocumentBuilder().parse(is);
44
45 NodeIterator menus = XPathAPI.selectNodeIterator(xmlDoc, "/menus/menu");
46
47 Element menu;
48 while ((menu = (Element ) menus.nextNode()) != null)
49 {
50 String menuTitle = menu.getAttribute("title");
51
52 JMenu jMenu = new JMenu (menuTitle);
53 result.add(jMenu);
54
55 NodeIterator items = XPathAPI.selectNodeIterator(menu, "menuitem");
56 Element item;
57 while ((item = (Element ) items.nextNode()) != null)
58 {
59 String itemTitle = item.getAttribute("title");
60 String extentName = item.getAttribute("somextent");
61 String classname = item.getAttribute("class");
62
63 if (extentName != null && extentName.trim().length() == 0) extentName = null;
64
65 JMenuItem jMenuItem = new JMenuItem (itemTitle);
66 jMenu.add(jMenuItem);
67
68 Class clazz = _environment.loadClass(classname);
69 MenuExtension ext = (MenuExtension) clazz.newInstance();
70 MenuExtensionDescr descr = new MenuExtensionDescr(itemTitle, ext, extentName);
71 jMenuItem.addActionListener(new MenuExtensionAction(ext, _environment, extentName));
72 }
73 }
74 return (JMenu []) result.toArray(new JMenu [result.size()]);
75 }
76
77 public ArrayList getExtensions(String typeName) throws IOException , InstantiationException , IllegalAccessException ,
78 ClassNotFoundException , DjenericException
79 {
80 ArrayList result = new ArrayList ();
81
82 InputStream is = _environment.getResourceAsStream(typeName + ".ext");
83 if (is == null) return result;
84
85 BufferedReader br = new BufferedReader (new InputStreamReader (is));
86 String ln;
87 while ((ln = br.readLine()) != null)
88 {
89 ln = ln.trim();
90 if (ln.length() > 0)
91 {
92 int idx = ln.indexOf("=");
93 if (idx != -1)
94 {
95 String title = ln.substring(0, idx).trim();
96 String className = ln.substring(idx + 1).trim();
97
98 Class clazz = _environment.loadClass(className);
99
100 MenuExtension menuExtension = (MenuExtension) clazz.newInstance();
101 menuExtension.init(_environment);
102 MenuExtensionDescr extension = new MenuExtensionDescr(title, menuExtension, typeName);
103 result.add(extension);
104 }
105 }
106 }
107 br.close();
108 return result;
109 }
110
111 }
112 |
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