Patch load(File file) throws IOException {
FileInputStream is = new FileInputStream(file);
try {
PatchImpl patch = doLoad(this, is);
File fr = new File(file.getParent(), file.getName() + ".result");
if (fr.isFile()) {
patch.setResult(loadResult(patch, fr));
}
return patch;
} finally {
close(is);
}
}
void rollback(Patch patch, boolean force) throws PatchException {
Result result = patch.getResult();
if (result == null) {
throw new PatchException("Patch " + patch.getId() + " is not installed");
}
Bundle[] allBundles = bundleContext.getBundles();
List<BundleUpdate> badUpdates = new ArrayList<BundleUpdate>();
for (BundleUpdate update : result.getUpdates()) {
boolean found = false;
Version v = Version.parseVersion(update.getNewVersion());
for (Bundle bundle : allBundles) {
if (stripSymbolicName(bundle.getSymbolicName())
.equals(stripSymbolicName(update.getSymbolicName()))
&& bundle.getVersion().equals(v)) {
found = true;
break;
}
}
if (!found) {
badUpdates.add(update);
}
}
if (!badUpdates.isEmpty() && !force) {
StringBuilder sb = new StringBuilder();
sb.append("Unable to rollback patch ")
.append(patch.getId())
.append(" because of the following missing bundles:\n");
for (BundleUpdate up : badUpdates) {
sb.append("\t")
.append(up.getSymbolicName())
.append("/")
.append(up.getNewVersion())
.append("\n");
}
throw new PatchException(sb.toString());
}
Map<Bundle, String> toUpdate = new HashMap<Bundle, String>();
for (BundleUpdate update : result.getUpdates()) {
Version v = Version.parseVersion(update.getNewVersion());
for (Bundle bundle : allBundles) {
if (stripSymbolicName(bundle.getSymbolicName())
.equals(stripSymbolicName(update.getSymbolicName()))
&& bundle.getVersion().equals(v)) {
toUpdate.put(bundle, update.getPreviousLocation());
}
}
}
try {
applyChanges(toUpdate);
writeFully(
new File(System.getProperty("karaf.base"), "etc/startup.properties"),
((ResultImpl) result).getStartup());
writeFully(
new File(System.getProperty("karaf.base"), "etc/overrides.properties"),
((ResultImpl) result).getOverrides());
} catch (Exception e) {
throw new PatchException(
"Unable to rollback patch " + patch.getId() + ": " + e.getMessage(), e);
}
((PatchImpl) patch).setResult(null);
File file = new File(patchDir, result.getPatch().getId() + ".patch.result");
file.delete();
}
