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Code Issues Projects Releases Wiki Activity

Match newly added RSS feeds to existing feeds.

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This commit is contained in:
akwizgran
2023-01-24 12:43:14 +00:00
parent 2eef34f424
commit dc220200b6
9 changed files with 286 additions and 112 deletions
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14
briar-android/src/main/java/org/briarproject/briar/android/blog/RssFeedActivity.java
View File

@@ -1,7 +1,6 @@
package org.briarproject.briar.android.blog;
import android.os.Bundle;
import android.widget.Toast;
import org.briarproject.briar.R;
import org.briarproject.briar.android.activity.ActivityComponent;
@@ -16,10 +15,6 @@ import androidx.annotation.Nullable;
import androidx.fragment.app.FragmentManager;
import androidx.lifecycle.ViewModelProvider;
import static org.briarproject.briar.android.blog.RssFeedViewModel.ImportResult.EXISTS;
import static org.briarproject.briar.android.blog.RssFeedViewModel.ImportResult.FAILED;
import static org.briarproject.briar.android.blog.RssFeedViewModel.ImportResult.IMPORTED;
@MethodsNotNullByDefault
@ParametersNotNullByDefault
public class RssFeedActivity extends BriarActivity
@@ -50,13 +45,13 @@ public class RssFeedActivity extends BriarActivity
viewModel.getImportResult().observeEvent(this, this::onImportResult);
}
private void onImportResult(RssFeedViewModel.ImportResult result) {
if (result == IMPORTED) {
private void onImportResult(boolean result) {
if (result) {
FragmentManager fm = getSupportFragmentManager();
if (fm.findFragmentByTag(RssFeedImportFragment.TAG) != null) {
onBackPressed();
}
} else if (result == FAILED) {
} else {
String url = viewModel.getUrlFailedImport();
if (url == null) {
throw new AssertionError();
@@ -65,9 +60,6 @@ public class RssFeedActivity extends BriarActivity
RssFeedImportFailedDialogFragment.newInstance(url);
dialog.show(getSupportFragmentManager(),
RssFeedImportFailedDialogFragment.TAG);
} else if (result == EXISTS) {
Toast.makeText(this, R.string.blogs_rss_feeds_import_exists,
Toast.LENGTH_LONG).show();
}
}
}

44
briar-android/src/main/java/org/briarproject/briar/android/blog/RssFeedViewModel.java
View File

@@ -22,6 +22,7 @@ import org.briarproject.nullsafety.NotNullByDefault;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Executor;
import java.util.logging.Logger;
@@ -37,13 +38,9 @@ import static java.util.logging.Logger.getLogger;
import static org.briarproject.bramble.util.LogUtils.logDuration;
import static org.briarproject.bramble.util.LogUtils.logException;
import static org.briarproject.bramble.util.LogUtils.now;
import static org.briarproject.briar.android.blog.RssFeedViewModel.ImportResult.EXISTS;
import static org.briarproject.briar.android.blog.RssFeedViewModel.ImportResult.FAILED;
import static org.briarproject.briar.android.blog.RssFeedViewModel.ImportResult.IMPORTED;
@NotNullByDefault
class RssFeedViewModel extends DbViewModel {
enum ImportResult {IMPORTED, FAILED, EXISTS}
private static final Logger LOG =
getLogger(RssFeedViewModel.class.getName());
@@ -59,7 +56,7 @@ class RssFeedViewModel extends DbViewModel {
private volatile String urlFailedImport = null;
private final MutableLiveData<Boolean> isImporting =
new MutableLiveData<>(false);
private final MutableLiveEvent<ImportResult> importResult =
private final MutableLiveEvent<Boolean> importResult =
new MutableLiveEvent<>();
@Inject
@@ -123,7 +120,7 @@ class RssFeedViewModel extends DbViewModel {
});
}
LiveEvent<ImportResult> getImportResult() {
LiveEvent<Boolean> getImportResult() {
return importResult;
}
@@ -136,20 +133,23 @@ class RssFeedViewModel extends DbViewModel {
urlFailedImport = null;
ioExecutor.execute(() -> {
try {
if (exists(url)) {
importResult.postEvent(EXISTS);
return;
}
Feed feed = feedManager.addFeed(url);
List<Feed> updated = addListItem(getList(feeds), feed);
if (updated != null) {
feeds.postValue(new LiveResult<>(updated));
// Update the feed if it was already present
List<Feed> feedList = getList(feeds);
if (feedList == null) feedList = new ArrayList<>();
List<Feed> updated = updateListItems(feedList,
f -> f.equals(feed), f -> feed);
// Add the feed if it wasn't already present
if (updated == null) {
feedList.add(feed);
updated = feedList;
}
importResult.postEvent(IMPORTED);
feeds.postValue(new LiveResult<>(updated));
importResult.postEvent(true);
} catch (DbException | IOException e) {
logException(LOG, WARNING, e);
urlFailedImport = url;
importResult.postEvent(FAILED);
importResult.postEvent(false);
} finally {
isImporting.postValue(false);
}
@@ -160,18 +160,4 @@ class RssFeedViewModel extends DbViewModel {
String getUrlFailedImport() {
return urlFailedImport;
}
private boolean exists(String url) {
List<Feed> list = getList(feeds);
if (list != null) {
for (Feed feed : list) {
// TODO: Fetch the feed and also match it against feeds that
// were imported from files?
if (url.equals(feed.getProperties().getUrl())) {
return true;
}
}
}
return false;
}
}