/**
* Finds all apks from the repo we are currently updating, that belong to the specified app, and
* delete them as they are no longer provided by that repo.
*/
@Nullable
private ContentProviderOperation deleteOrphanedApks(
List<App> apps, Map<String, List<Apk>> packages) {
String[] projection =
new String[] {ApkProvider.DataColumns.PACKAGE_NAME, ApkProvider.DataColumns.VERSION_CODE};
List<Apk> existing = ApkProvider.Helper.find(context, repo, apps, projection);
List<Apk> toDelete = new ArrayList<>();
for (Apk existingApk : existing) {
boolean shouldStay = false;
if (packages.containsKey(existingApk.packageName)) {
for (Apk newApk : packages.get(existingApk.packageName)) {
if (newApk.vercode == existingApk.vercode) {
shouldStay = true;
break;
}
}
}
if (!shouldStay) {
toDelete.add(existingApk);
}
}
if (toDelete.size() == 0) {
return null;
}
Uri uri = TempApkProvider.getApksUri(repo, toDelete);
return ContentProviderOperation.newDelete(uri).build();
}
/**
* Depending on whether the .apks have been added to the database previously, this will queue up
* an update or an insert {@link ContentProviderOperation} for each package.
*/
private ArrayList<ContentProviderOperation> insertOrUpdateApks(List<Apk> packages) {
String[] projection =
new String[] {
ApkProvider.DataColumns.PACKAGE_NAME, ApkProvider.DataColumns.VERSION_CODE,
};
List<Apk> existingApks = ApkProvider.Helper.knownApks(context, packages, projection);
ArrayList<ContentProviderOperation> operations = new ArrayList<>(packages.size());
for (Apk apk : packages) {
boolean exists = false;
for (Apk existing : existingApks) {
if (existing.packageName.equals(apk.packageName) && existing.vercode == apk.vercode) {
exists = true;
break;
}
}
if (exists) {
operations.add(updateExistingApk(apk));
} else {
operations.add(insertNewApk(apk));
}
}
return operations;
}