public static void transform(URL url, OutputStream os) throws Exception {
// Build dom document
Document doc = parse(url);
// Heuristicly retrieve name and version
String name = getPath(url);
int idx = name.lastIndexOf('/');
if (idx >= 0) {
name = name.substring(idx + 1);
}
String[] str = DeployerUtils.extractNameVersionType(name);
// Create manifest
Manifest m = new Manifest();
m.getMainAttributes().putValue("Manifest-Version", "2");
m.getMainAttributes().putValue(Constants.BUNDLE_MANIFESTVERSION, "2");
m.getMainAttributes().putValue(Constants.BUNDLE_SYMBOLICNAME, str[0]);
m.getMainAttributes().putValue(Constants.BUNDLE_VERSION, str[1]);
String importPkgs = getImportPackages(analyze(new DOMSource(doc)));
if (importPkgs != null && importPkgs.length() > 0) {
m.getMainAttributes().putValue(Constants.IMPORT_PACKAGE, importPkgs);
}
m.getMainAttributes().putValue(Constants.DYNAMICIMPORT_PACKAGE, "*");
// Extract manifest entries from the DOM
NodeList l = doc.getElementsByTagName("manifest");
if (l != null) {
for (int i = 0; i < l.getLength(); i++) {
Element e = (Element) l.item(i);
String text = e.getTextContent();
Properties props = new Properties();
props.load(new ByteArrayInputStream(text.trim().getBytes()));
Enumeration en = props.propertyNames();
while (en.hasMoreElements()) {
String k = (String) en.nextElement();
String v = props.getProperty(k);
m.getMainAttributes().putValue(k, v);
}
e.getParentNode().removeChild(e);
}
}
JarOutputStream out = new JarOutputStream(os);
ZipEntry e = new ZipEntry(JarFile.MANIFEST_NAME);
out.putNextEntry(e);
m.write(out);
out.closeEntry();
e = new ZipEntry("OSGI-INF/");
out.putNextEntry(e);
e = new ZipEntry("OSGI-INF/blueprint/");
out.putNextEntry(e);
out.closeEntry();
// check .xml file extension
if (!name.endsWith(".xml")) {
name += ".xml";
}
e = new ZipEntry("OSGI-INF/blueprint/" + name);
out.putNextEntry(e);
// Copy the new DOM
XmlUtils.transform(new DOMSource(doc), new StreamResult(out));
out.closeEntry();
out.close();
}
public static Set<String> analyze(Source source) throws Exception {
Set<String> refers = new TreeSet<String>();
ByteArrayOutputStream bout = new ByteArrayOutputStream();
Result r = new StreamResult(bout);
XmlUtils.transform(
new StreamSource(BlueprintTransformer.class.getResourceAsStream("extract.xsl")), source, r);
ByteArrayInputStream bin = new ByteArrayInputStream(bout.toByteArray());
bout.close();
BufferedReader br = new BufferedReader(new InputStreamReader(bin));
String line = br.readLine();
while (line != null) {
line = line.trim();
if (line.length() > 0) {
String parts[] = line.split("\\s*,\\s*");
for (int i = 0; i < parts.length; i++) {
int n = parts[i].lastIndexOf('.');
if (n > 0) {
String pkg = parts[i].substring(0, n);
if (!pkg.startsWith("java.")) {
refers.add(pkg);
}
}
}
}
line = br.readLine();
}
br.close();
return refers;
}
protected static Document parse(URL url) throws Exception {
return XmlUtils.parse(url.toString());
}