public void cancel() {
if (currentProgress != null) {
currentProgress.setCanceled(true);
}
if (overallProgress != null) {
overallProgress.setCanceled(true);
}
super.cancel();
}
public void execute() {
LogManager.logEntry("getting all installation data");
final Registry registry = Registry.getInstance();
final List<Product> products = registry.getProductsToInstall();
final int percentageChunk = Progress.COMPLETE / products.size();
final int percentageLeak = Progress.COMPLETE % products.size();
overallProgress = new CompositeProgress();
overallProgress.setPercentage(percentageLeak);
overallProgress.synchronizeDetails(true);
getWizardUi().setProgress(overallProgress);
for (int i = 0; i < products.size(); i++) {
// get the handle of the current item
final Product product = products.get(i);
// initiate the progress for the current element
currentProgress = new Progress();
overallProgress.addChild(currentProgress, percentageChunk);
try {
String prop =
product.getRegistryType() == RegistryType.REMOTE
? PROGRESS_TITLE_REMOTE_PROPERTY
: PROGRESS_TITLE_LOCAL_PROPERTY;
String overallProgressTitle =
StringUtils.format(getProperty(prop), product.getDisplayName());
overallProgress.setTitle(overallProgressTitle);
product.downloadData(currentProgress);
// check for cancel status
if (isCanceled()) return;
// sleep a little so that the user can perceive that something
// is happening
SystemUtils.sleep(200);
} catch (DownloadException e) {
// wrap the download exception with a more user-friendly one
InstallationException error =
new InstallationException(
StringUtils.format(
getProperty(DOWNLOAD_FAILED_EXCEPTION_PROPERTY), product.getDisplayName()),
e);
// adjust the product's status and save this error - it will
// be reused later at the PostInstallSummary
product.setStatus(Status.NOT_INSTALLED);
product.setInstallationError(error);
// since the installation data for the current product failed to
// be downloaded, we should cancel the installation of the products
// that may require this one
for (Product dependent : registry.getProducts()) {
if ((dependent.getStatus() == Status.TO_BE_INSTALLED)
&& registry.satisfiesRequirement(product, dependent)) {
String exString =
StringUtils.format(
getProperty(DEPENDENT_FAILED_EXCEPTION_PROPERTY),
dependent.getDisplayName(),
product.getDisplayName());
final InstallationException dependentError = new InstallationException(exString, error);
dependent.setStatus(Status.NOT_INSTALLED);
dependent.setInstallationError(dependentError);
products.remove(dependent);
}
}
// finally notify the user of what has happened
LogManager.log(ErrorLevel.ERROR, error);
}
}
LogManager.logExit("... finished getting of the installation data");
}