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19 package org.netbeans.lib.jmi.util;
20
21 import java.io.InputStream  ;
22 import java.net.URL ;
23 import java.util.Arrays ;
24 import java.util.Collection ;
25 import java.util.Enumeration ;
26 import java.util.HashMap ;
27 import java.util.Iterator ;
28 import java.util.Map ;
29 import java.util.jar.Attributes ;
30 import java.util.jar.Manifest ;
31 import javax.jmi.model.ModelPackage;
32 import javax.jmi.model.MofPackage;
33 import javax.jmi.model.Tag;
34 import javax.jmi.reflect.RefPackage;
35 import javax.jmi.xmi.XmiReader;
36 import org.netbeans.api.mdr.MDRepository;
37 import org.openide.util.Lookup;
38
39
43 public class MetamodelManager {
44 protected final MDRepository repository;
45 private final Class cls;
46 private Map cache;
47 private ModelPackage extent;
48 private String extentName;
49 private String version;
50 private String fileName;
51
52
53 public MetamodelManager(MDRepository repository, Class cls) {
54 this.repository = repository;
55 this.cls = cls;
56 }
57
58 public synchronized MofPackage findRootPackage(String packageName) {
59 if (extent == null) {
60 update();
61 }
62 if (cache == null) {
63 cache = new HashMap ();
64 for (Iterator it = extent.getMofPackage().refAllOfClass().iterator(); it.hasNext();) {
65 MofPackage pkg = (MofPackage) it.next();
66 if (pkg.getContainer() == null) {
67 cache.put(pkg.getName(), pkg);
68 }
69 }
70 }
71
72 return (MofPackage) cache.get(packageName);
73 }
74
75 protected synchronized String getVersion() {
76 initCheck();
77 return version;
78 }
79
80 protected synchronized String getExtentName() {
81 initCheck();
82 return extentName;
83 }
84
85 private void initCheck() {
86 if (fileName == null) {
87 try {
88 Manifest mf = new Manifest (cls.getResourceAsStream("/META-INF/MANIFEST.MF"));
89 Attributes attrs = mf.getMainAttributes();
90 extentName = attrs.getValue("NBMDR-Metamodel");
91 if (extentName == null) {
92 Enumeration e = cls.getClassLoader().getResources("META-INF/MANIFEST.MF");
93 while (e.hasMoreElements() && extentName == null) {
94 URL u = (URL ) e.nextElement();
95 InputStream is = u.openStream();
96 mf = new Manifest (is);
97 attrs = mf.getMainAttributes();
98 extentName = attrs.getValue("NBMDR-Metamodel");
99 }
100 }
101 fileName = "/" + attrs.getValue("NBMDR-Metamodel-File");
102 version = attrs.getValue("NBMDR-Metamodel-Version");
103 } catch (java.io.IOException e) {
104 throw new RuntimeException (e.getMessage());
105 }
106 }
107 }
108
109 private void update() {
110 initCheck();
111 boolean fail = true;
112 repository.beginTrans(true);
113 try {
114
115 Logger.getDefault().log("Looking for extent " + extentName + " in repository " + repository);
117 extent = (ModelPackage) repository.getExtent(extentName);
118
119 if (extent != null) {
120 Tag tag = null;
122 for (Iterator it = extent.getTag().refAllOfClass().iterator(); it.hasNext();) {
123 Tag temp = (Tag) it.next();
124 if ("org.netbeans.version".equals(temp.getTagId())) {
125 tag = temp;
126 break;
127 }
128 }
129 if (tag == null || tag.getValues().isEmpty() ||
132 !tag.getValues().iterator().next().equals(version)) {
133 Logger.getDefault().log("Metamodel version is outdated - it needs to be reloaded.");
134 String names[] = repository.getExtentNames();
135 for (int i = 0; i < names.length; i++) {
136 RefPackage tmp = repository.getExtent(names[i]);
137 if (!(tmp instanceof ModelPackage)) {
138 tmp.refDelete();
139 }
140 }
141 extent.refDelete();
142 extent = null;
143 }
144 } else {
145 Logger.getDefault().log("Extent not found.");
146 }
147
148 if (extent == null) {
149 extent = (ModelPackage) repository.createExtent(extentName);
151 XmiReader xmr = (XmiReader) Lookup.getDefault().lookup(XmiReader.class);
152 Collection outermostElements = xmr.read(cls.getResource(fileName).toString(), extent);
153 extent.getTag().createTag("org.netbeans.version", "", "org.netbeans.version", Arrays.asList(new String [] {version}));
154 cache = new HashMap ();
156 for (Iterator it = outermostElements.iterator(); it.hasNext();) {
157 Object temp = it.next();
158 if (temp instanceof MofPackage) {
159 cache.put(((MofPackage) temp).getName(), temp);
160 }
161 }
162 }
163 fail = false;
164 } catch (Exception ex) {
165 throw (IllegalStateException ) Logger.getDefault().annotate(new IllegalStateException ("Metamodel XMI malformed."), ex);
166 } finally {
167 repository.endTrans(fail);
168 }
169 }
170 }
171 |
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