+
+ private static TransferableGraph1 readTG(URL url) throws Exception {
+ try (InputStream is = url.openStream()) {
+ return TransferableGraphFileReader.read(is);
+ }
+ }
+
+ private static DataContainer readHeader(URL url) throws IOException {
+ try (InputStream is = url.openStream()) {
+ return DataContainers.readHeader(new DataInputStream(new BufferedInputStream(is, 1 << 14)));
+ }
+ }
+
+ private static Integer readCachedHash(URL url) throws IOException, AdaptException {
+ DataContainer header = readHeader(url);
+ Variant hashCode = header.metadata.get(Extensions.CACHED_HASHCODE);
+ return hashCode != null ? (Integer) hashCode.getValue(Bindings.INTEGER) : null;
+ }
+
+ private static Version toP2Version(Bundle bundle) {
+ org.osgi.framework.Version osgiVersion = bundle.getVersion();
+ return Version.createOSGi(osgiVersion.getMajor(), osgiVersion.getMinor(), osgiVersion.getMicro(), osgiVersion.getQualifier());
+ }
+
+ private static String getBundleName(Bundle bundle, String id) {
+ String name = (String) bundle.getHeaders().get("Bundle-Name");
+ return name != null ? name : id;
+ }
+
+ private static boolean isImmutable(Bundle bundle) {
+ String immutable = (String) bundle.getHeaders().get("Immutable");
+ return immutable != null ? "true".equals(immutable) : true;
+ }
+