/**
* Constructs a <tt>RegistryUninstallerListener</tt>.
*
* @param handler the handler
* @param resources the resources
* @param messages the messages
*/
public RegistryUninstallerListener(
RegistryDefaultHandler handler, Resources resources, Messages messages) {
System.out.println("Cleaning the windows registry");
this.handler = handler.getInstance();
this.resources = resources;
this.messages = messages;
}
/**
* Invoked before files are deleted.
*
* @param files all files which should be deleted
* @throws IzPackException for any error
*/
@Override
public void beforeDelete(List<File> files) {
if (actions == null || actions.isEmpty()) {
return;
}
try {
RegistryHandler registryHandler = handler.getInstance();
if (registryHandler == null) {
return;
}
registryHandler.activateLogging();
registryHandler.setLoggingInfo(actions);
registryHandler.rewind();
} catch (NativeLibException e) {
throw new WrappedNativeLibException(e, messages);
}
}
/**
* Returns the path to the needed JDK if found in the registry. If there are more than one JDKs
* registered, that one with the highest allowd version will be returned. Works only on windows.
* On Unix an empty string returns.
*
* @return the path to the needed JDK if found in the windows registry
*/
private String resolveInRegistry() {
String retval = "";
int oldVal = 0;
RegistryHandler registryHandler = null;
badRegEntries = new HashSet<String>();
try {
// Get the default registry handler.
registryHandler = RegistryDefaultHandler.getInstance();
if (registryHandler == null)
// We are on a os which has no registry or the
// needed dll was not bound to this installation. In
// both cases we forget the try to get the JDK path from registry.
{
return (retval);
}
registryHandler.verify(this.installData);
oldVal = registryHandler.getRoot(); // Only for security...
registryHandler.setRoot(MSWinConstants.HKEY_LOCAL_MACHINE);
String[] keys = registryHandler.getSubkeys(JDK_ROOT_KEY);
if (keys == null || keys.length == 0) {
return (retval);
}
Arrays.sort(keys);
int i = keys.length - 1;
String min = getMinVersion();
String max = getMaxVersion();
// We search for the highest allowd version, therefore retrograde
while (i > 0) {
if (compareVersions(
keys[i],
max,
false,
4,
4,
"__NO_NOT_IDENTIFIER_")) { // First allowd version found, now we have to test that the
// min value
// also allows this version.
if (compareVersions(keys[i], min, true, 4, 4, "__NO_NOT_IDENTIFIER_")) {
String cv = JDK_ROOT_KEY + "\\" + keys[i];
String path = registryHandler.getValue(cv, JDK_VALUE_NAME).getStringData();
// Use it only if the path is valid.
// Set the path for method pathIsValid ...
pathSelectionPanel.setPath(path);
if (!pathIsValid()) {
badRegEntries.add(keys[i]);
} else if ("".equals(retval)) {
retval = path;
}
pathSelectionPanel.setPath(retval);
}
}
i--;
}
} catch (Exception e) { // Will only be happen if registry handler is good, but an
// exception at performing was thrown. This is an error...
e.printStackTrace();
} finally {
if (registryHandler != null && oldVal != 0) {
try {
registryHandler.setRoot(MSWinConstants.HKEY_LOCAL_MACHINE);
} catch (NativeLibException e) {
e.printStackTrace();
}
}
}
return (retval);
}