Change recent chapters query, now it shows last month updates. Download manager now uses a thread pool.

app/src/main/java/eu/kanade/tachiyomi/data/database/DatabaseHelper.java

@@ -162,11 +162,11 @@ public class DatabaseHelper {
                 .prepare();
     }
 
-    public PreparedGetListOfObjects<MangaChapter> getRecentChapters() {
+    public PreparedGetListOfObjects<MangaChapter> getRecentChapters(Date date) {
         return db.get()
                 .listOfObjects(MangaChapter.class)
                 .withQuery(RawQuery.builder()
-                        .query(MangaChapterGetResolver.RECENT_CHAPTERS_QUERY)
+                        .query(MangaChapterGetResolver.getRecentChaptersQuery(date))
                         .observesTables(ChapterTable.TABLE)
                         .build())
                 .withGetResolver(MangaChapterGetResolver.INSTANCE)

app/src/main/java/eu/kanade/tachiyomi/data/database/resolvers/MangaChapterGetResolver.java

@@ -5,6 +5,8 @@ import android.support.annotation.NonNull;
 
 import com.pushtorefresh.storio.sqlite.operations.get.DefaultGetResolver;
 
+import java.util.Date;
+
 import eu.kanade.tachiyomi.data.database.models.Chapter;
 import eu.kanade.tachiyomi.data.database.models.ChapterStorIOSQLiteGetResolver;
 import eu.kanade.tachiyomi.data.database.models.Manga;
@@ -24,10 +26,12 @@ public class MangaChapterGetResolver extends DefaultGetResolver<MangaChapter> {
             MangaTable.COLUMN_ID,
             ChapterTable.COLUMN_MANGA_ID);
 
-    public static final String RECENT_CHAPTERS_QUERY = String.format(
-            QUERY + " WHERE %1$s = 1 ORDER BY %2$s DESC LIMIT 100",
-            MangaTable.COLUMN_FAVORITE,
-            ChapterTable.COLUMN_DATE_UPLOAD);
+    public static String getRecentChaptersQuery(Date date) {
+        return QUERY + String.format(" WHERE %1$s = 1 AND %2$s > %3$d ORDER BY %2$s DESC",
+                MangaTable.COLUMN_FAVORITE,
+                ChapterTable.COLUMN_DATE_UPLOAD,
+                date.getTime());
+    }
 
     @NonNull
     private final MangaStorIOSQLiteGetResolver mangaGetResolver;

app/src/main/java/eu/kanade/tachiyomi/data/download/DownloadManager.java

@@ -15,6 +15,8 @@ import java.io.IOException;
 import java.lang.reflect.Type;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
 
 import eu.kanade.tachiyomi.data.database.models.Chapter;
 import eu.kanade.tachiyomi.data.database.models.Manga;
@@ -48,6 +50,8 @@ public class DownloadManager {
     private DownloadQueue queue;
     private volatile boolean isRunning;
 
+    private ExecutorService threadPool;
+
     public static final String PAGE_LIST_FILE = "index.json";
 
     public DownloadManager(Context context, SourceManager sourceManager, PreferencesHelper preferences) {
@@ -66,10 +70,11 @@ public class DownloadManager {
         if (downloadsSubscription != null && !downloadsSubscription.isUnsubscribed())
             downloadsSubscription.unsubscribe();
 
+        threadPool = Executors.newFixedThreadPool(preferences.downloadThreads());
+
         downloadsSubscription = downloadsQueueSubject
-                .concatMap(downloads -> Observable.from(downloads)
-                        .flatMap(this::downloadChapter, preferences.downloadThreads()))
-                .onBackpressureBuffer()
+                .flatMap(Observable::from)
+                .flatMap(c -> downloadChapter(c).subscribeOn(Schedulers.from(threadPool)))
                 .observeOn(AndroidSchedulers.mainThread())
                 .map(download -> areAllDownloadsFinished())
                 .subscribe(finished -> {
@@ -94,6 +99,10 @@ public class DownloadManager {
             downloadsSubscription.unsubscribe();
             downloadsSubscription = null;
         }
+
+        if (threadPool != null && !threadPool.isShutdown()) {
+            threadPool.shutdown();
+        }
     }
 
     // Create a download object for every chapter in the event and add them to the downloads queue
@@ -181,8 +190,7 @@ public class DownloadManager {
                 // Or if the page list already exists, start from the file
                 Observable.just(download.pages);
 
-        return pageListObservable
-                .subscribeOn(Schedulers.io())
+        return Observable.defer(() -> pageListObservable
                 .doOnNext(pages -> {
                     download.downloadedImages = 0;
                     download.setStatus(Download.DOWNLOADING);
@@ -199,7 +207,7 @@ public class DownloadManager {
                 .onErrorResumeNext(error -> {
                     download.setStatus(Download.ERROR);
                     return Observable.just(download);
-                });
+                }));
     }
 
     // Get the image from the filesystem if it exists or download from network

app/src/main/java/eu/kanade/tachiyomi/ui/recent/RecentChaptersPresenter.java

@@ -42,7 +42,11 @@ public class RecentChaptersPresenter extends BasePresenter<RecentChaptersFragmen
     }
 
     private Observable<List<Object>> getRecentChaptersObservable() {
-        return db.getRecentChapters().asRxObservable()
+        Calendar cal = Calendar.getInstance();
+        cal.setTime(new Date());
+        cal.add(Calendar.MONTH, -1);
+
+        return db.getRecentChapters(cal.getTime()).asRxObservable()
                 // group chapters by the date they were fetched on a ordered map
                 .flatMap(recents -> Observable.from(recents)
                         .toMultimap(