Unify all of the sync adapter exception handling.

The exception handling was duplicated across every sync backend.
It was redundant and made it easy to not handle all of the exceptions correctly
everywhere.

app/src/main/java/com/etesync/syncadapter/syncadapter/AddressBooksSyncAdapterService.kt

@@ -40,14 +40,10 @@ class AddressBooksSyncAdapterService : SyncAdapterService() {
 
 
     private class AddressBooksSyncAdapter(context: Context) : SyncAdapterService.SyncAdapter(context) {
+        override val syncErrorTitle = R.string.sync_error_contacts
+        override val notificationManager = SyncNotification(context, "journals-contacts", Constants.NOTIFICATION_CONTACTS_SYNC)
 
-        override fun onPerformSync(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult) {
-            super.onPerformSync(account, extras, authority, provider, syncResult)
-
-            val notificationManager = SyncNotification(context, "journals-contacts", Constants.NOTIFICATION_CONTACTS_SYNC)
-            notificationManager.cancel()
-
-            try {
+        override fun onPerformSyncDo(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult) {
             val contactsProvider = context.contentResolver.acquireContentProviderClient(ContactsContract.AUTHORITY)
             if (contactsProvider == null) {
                 Logger.log.severe("Couldn't access contacts provider")
@@ -73,38 +69,6 @@ class AddressBooksSyncAdapterService : SyncAdapterService() {
                 syncExtras.putBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_BACKOFF, true)
                 ContentResolver.requestSync(addressBookAccount, ContactsContract.AUTHORITY, syncExtras)
             }
-            } catch (e: Exceptions.ServiceUnavailableException) {
-                syncResult.stats.numIoExceptions++
-                syncResult.delayUntil = if (e.retryAfter > 0) e.retryAfter else Constants.DEFAULT_RETRY_DELAY
-            } catch (e: Exceptions.IgnorableHttpException) {
-                // Ignore
-            } catch (e: Exception) {
-                if (e is ContactsStorageException || e is SQLiteException) {
-                    Logger.log.log(Level.SEVERE, "Couldn't prepare local address books", e)
-                    syncResult.databaseError = true
-                }
-
-                val syncPhase = R.string.sync_phase_journals
-                val title = context.getString(R.string.sync_error_contacts, account.name)
-
-                notificationManager.setThrowable(e)
-
-                val detailsIntent = notificationManager.detailsIntent
-                detailsIntent.putExtra(KEY_ACCOUNT, account)
-                if (e !is Exceptions.UnauthorizedException) {
-                    detailsIntent.putExtra(DebugInfoActivity.KEY_AUTHORITY, authority)
-                    detailsIntent.putExtra(DebugInfoActivity.KEY_PHASE, syncPhase)
-                }
-
-                notificationManager.notify(title, context.getString(syncPhase))
-            } catch (e: OutOfMemoryError) {
-                val syncPhase = R.string.sync_phase_journals
-                val title = context.getString(R.string.sync_error_contacts, account.name)
-                notificationManager.setThrowable(e)
-                val detailsIntent = notificationManager.detailsIntent
-                detailsIntent.putExtra(KEY_ACCOUNT, account)
-                notificationManager.notify(title, context.getString(syncPhase))
-            }
 
             Logger.log.info("Address book sync complete")
         }

app/src/main/java/com/etesync/syncadapter/syncadapter/CalendarsSyncAdapterService.kt

@@ -31,21 +31,16 @@ import java.util.*
 import java.util.logging.Level
 
 class CalendarsSyncAdapterService : SyncAdapterService() {
-
     override fun syncAdapter(): AbstractThreadedSyncAdapter {
         return SyncAdapter(this)
     }
 
 
     private class SyncAdapter(context: Context) : SyncAdapterService.SyncAdapter(context) {
+        override val syncErrorTitle = R.string.sync_error_calendar
+        override val notificationManager = SyncNotification(context, "journals-calendar", Constants.NOTIFICATION_CALENDAR_SYNC)
 
-        override fun onPerformSync(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult) {
-            super.onPerformSync(account, extras, authority, provider, syncResult)
-
-            val notificationManager = SyncNotification(context, "journals-calendar", Constants.NOTIFICATION_CALENDAR_SYNC)
-            notificationManager.cancel()
-
-            try {
+        override fun onPerformSyncDo(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult) {
             val settings = AccountSettings(context, account)
             if (!extras.containsKey(ContentResolver.SYNC_EXTRAS_MANUAL) && !checkSyncConditions(settings))
                 return
@@ -62,38 +57,6 @@ class CalendarsSyncAdapterService : SyncAdapterService() {
                     it.performSync()
                 }
             }
-            } catch (e: Exceptions.ServiceUnavailableException) {
-                syncResult.stats.numIoExceptions++
-                syncResult.delayUntil = if (e.retryAfter > 0) e.retryAfter else Constants.DEFAULT_RETRY_DELAY
-            } catch (e: Exceptions.IgnorableHttpException) {
-                // Ignore
-            } catch (e: Exception) {
-                if (e is CalendarStorageException || e is SQLiteException) {
-                    Logger.log.log(Level.SEVERE, "Couldn't prepare local calendars", e)
-                    syncResult.databaseError = true
-                }
-
-                val syncPhase = R.string.sync_phase_journals
-                val title = context.getString(R.string.sync_error_calendar, account.name)
-
-                notificationManager.setThrowable(e)
-
-                val detailsIntent = notificationManager.detailsIntent
-                detailsIntent.putExtra(KEY_ACCOUNT, account)
-                if (e !is Exceptions.UnauthorizedException) {
-                    detailsIntent.putExtra(DebugInfoActivity.KEY_AUTHORITY, authority)
-                    detailsIntent.putExtra(DebugInfoActivity.KEY_PHASE, syncPhase)
-                }
-
-                notificationManager.notify(title, context.getString(syncPhase))
-            } catch (e: OutOfMemoryError) {
-                val syncPhase = R.string.sync_phase_journals
-                val title = context.getString(R.string.sync_error_calendar, account.name)
-                notificationManager.setThrowable(e)
-                val detailsIntent = notificationManager.detailsIntent
-                detailsIntent.putExtra(KEY_ACCOUNT, account)
-                notificationManager.notify(title, context.getString(syncPhase))
-            }
 
             Logger.log.info("Calendar sync complete")
         }

app/src/main/java/com/etesync/syncadapter/syncadapter/ContactsSyncAdapterService.kt

@@ -30,13 +30,10 @@ class ContactsSyncAdapterService : SyncAdapterService() {
 
 
     private class ContactsSyncAdapter(context: Context) : SyncAdapterService.SyncAdapter(context) {
+        override val syncErrorTitle = R.string.sync_error_contacts
+        override val notificationManager = SyncNotification(context, "journals-contacts", Constants.NOTIFICATION_CONTACTS_SYNC)
 
-        override fun onPerformSync(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult) {
-            super.onPerformSync(account, extras, authority, provider, syncResult)
-            val notificationManager = SyncNotification(context, "journals-contacts", Constants.NOTIFICATION_CONTACTS_SYNC)
-            notificationManager.cancel()
-
-            try {
+        override fun onPerformSyncDo(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult) {
             val addressBook = LocalAddressBook(context, account, provider)
 
             val settings: AccountSettings
@@ -62,32 +59,6 @@ class ContactsSyncAdapterService : SyncAdapterService() {
             ContactsSyncManager(context, account, settings, extras, authority, provider, syncResult, addressBook, principal).use {
                 it.performSync()
             }
-            } catch (e: Exceptions.ServiceUnavailableException) {
-                syncResult.stats.numIoExceptions++
-                syncResult.delayUntil = if (e.retryAfter > 0) e.retryAfter else Constants.DEFAULT_RETRY_DELAY
-            } catch (e: Exceptions.IgnorableHttpException) {
-                // Ignore
-            } catch (e: Exception) {
-                val syncPhase = R.string.sync_phase_journals
-                val title = context.getString(R.string.sync_error_contacts, account.name)
-
-                notificationManager.setThrowable(e)
-
-                val detailsIntent = notificationManager.detailsIntent
-                detailsIntent.putExtra(KEY_ACCOUNT, account)
-                if (e !is Exceptions.UnauthorizedException) {
-                    detailsIntent.putExtra(DebugInfoActivity.KEY_AUTHORITY, authority)
-                    detailsIntent.putExtra(DebugInfoActivity.KEY_PHASE, syncPhase)
-                }
-                notificationManager.notify(title, context.getString(syncPhase))
-            } catch (e: OutOfMemoryError) {
-                val syncPhase = R.string.sync_phase_journals
-                val title = context.getString(R.string.sync_error_contacts, account.name)
-                notificationManager.setThrowable(e)
-                val detailsIntent = notificationManager.detailsIntent
-                detailsIntent.putExtra(KEY_ACCOUNT, account)
-                notificationManager.notify(title, context.getString(syncPhase))
-            }
 
             Logger.log.info("Contacts sync complete")
         }

app/src/main/java/com/etesync/syncadapter/syncadapter/SyncAdapterService.kt

@@ -12,6 +12,7 @@ import android.accounts.Account
 import android.app.PendingIntent
 import android.app.Service
 import android.content.*
+import android.database.sqlite.SQLiteException
 import android.net.ConnectivityManager
 import android.net.wifi.WifiManager
 import android.os.Bundle
@@ -19,6 +20,8 @@ import android.os.IBinder
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
 import androidx.core.util.Pair
+import at.bitfire.ical4android.CalendarStorageException
+import at.bitfire.vcard4android.ContactsStorageException
 import com.etesync.syncadapter.*
 import com.etesync.syncadapter.journalmanager.Crypto
 import com.etesync.syncadapter.journalmanager.Exceptions
@@ -27,6 +30,7 @@ import com.etesync.syncadapter.log.Logger
 import com.etesync.syncadapter.model.CollectionInfo
 import com.etesync.syncadapter.model.JournalEntity
 import com.etesync.syncadapter.model.JournalModel
+import com.etesync.syncadapter.ui.DebugInfoActivity
 import com.etesync.syncadapter.ui.PermissionsActivity
 import com.etesync.syncadapter.utils.NotificationUtils
 import okhttp3.HttpUrl
@@ -45,12 +49,53 @@ abstract class SyncAdapterService : Service() {
 
 
     abstract class SyncAdapter(context: Context) : AbstractThreadedSyncAdapter(context, false) {
+        abstract val syncErrorTitle: Int
+        abstract val notificationManager: SyncNotification
+
+        abstract fun onPerformSyncDo(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult)
 
         override fun onPerformSync(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult) {
             Logger.log.log(Level.INFO, "$authority sync of $account has been initiated.", extras.keySet().toTypedArray())
 
             // required for dav4android (ServiceLoader)
             Thread.currentThread().contextClassLoader = context.classLoader
+
+            notificationManager.cancel()
+
+            try {
+                onPerformSyncDo(account, extras, authority, provider, syncResult)
+            } catch (e: Exceptions.ServiceUnavailableException) {
+                syncResult.stats.numIoExceptions++
+                syncResult.delayUntil = if (e.retryAfter > 0) e.retryAfter else Constants.DEFAULT_RETRY_DELAY
+            } catch (e: Exceptions.IgnorableHttpException) {
+                // Ignore
+            } catch (e: Exception) {
+                if (e is ContactsStorageException || e is CalendarStorageException || e is SQLiteException) {
+                    Logger.log.log(Level.SEVERE, "Couldn't prepare local journals", e)
+                    syncResult.databaseError = true
+                }
+
+                val syncPhase = R.string.sync_phase_journals
+                val title = context.getString(syncErrorTitle, account.name)
+
+                notificationManager.setThrowable(e)
+
+                val detailsIntent = notificationManager.detailsIntent
+                detailsIntent.putExtra(Constants.KEY_ACCOUNT, account)
+                if (e !is Exceptions.UnauthorizedException) {
+                    detailsIntent.putExtra(DebugInfoActivity.KEY_AUTHORITY, authority)
+                    detailsIntent.putExtra(DebugInfoActivity.KEY_PHASE, syncPhase)
+                }
+
+                notificationManager.notify(title, context.getString(syncPhase))
+            } catch (e: OutOfMemoryError) {
+                val syncPhase = R.string.sync_phase_journals
+                val title = context.getString(syncErrorTitle, account.name)
+                notificationManager.setThrowable(e)
+                val detailsIntent = notificationManager.detailsIntent
+                detailsIntent.putExtra(Constants.KEY_ACCOUNT, account)
+                notificationManager.notify(title, context.getString(syncPhase))
+            }
         }
 
         override fun onSecurityException(account: Account, extras: Bundle, authority: String, syncResult: SyncResult) {

app/src/main/java/com/etesync/syncadapter/syncadapter/TasksSyncAdapterService.kt

@@ -45,14 +45,11 @@ class TasksSyncAdapterService: SyncAdapterService() {
 	class TasksSyncAdapter(
             context: Context
     ): SyncAdapter(context) {
+        override val syncErrorTitle = R.string.sync_error_tasks
+        override val notificationManager = SyncNotification(context, "journals-tasks", Constants.NOTIFICATION_TASK_SYNC)
 
-        override fun onPerformSync(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult) {
-            super.onPerformSync(account, extras, authority, provider, syncResult)
+        override fun onPerformSyncDo(account: Account, extras: Bundle, authority: String, provider: ContentProviderClient, syncResult: SyncResult) {
 
-            val notificationManager = SyncNotification(context, "journals-tasks", Constants.NOTIFICATION_TASK_SYNC)
-            notificationManager.cancel()
-
-            try {
             val taskProvider = TaskProvider.fromProviderClient(context, provider)
 
             // make sure account can be seen by OpenTasks
@@ -67,7 +64,6 @@ class TasksSyncAdapterService: SyncAdapterService() {
             if (!extras.containsKey(ContentResolver.SYNC_EXTRAS_MANUAL) && !checkSyncConditions(accountSettings))
                 return
 
-
             RefreshCollections(account, CollectionInfo.Type.TASKS).run()
 
             updateLocalTaskLists(taskProvider, account, accountSettings)
@@ -80,38 +76,6 @@ class TasksSyncAdapterService: SyncAdapterService() {
                     it.performSync()
                 }
             }
-            } catch (e: Exceptions.ServiceUnavailableException) {
-                syncResult.stats.numIoExceptions++
-                syncResult.delayUntil = if (e.retryAfter > 0) e.retryAfter else Constants.DEFAULT_RETRY_DELAY
-            } catch (e: Exceptions.IgnorableHttpException) {
-                // Ignore
-            } catch (e: Exception) {
-                if (e is SQLiteException) {
-                    Logger.log.log(Level.SEVERE, "Couldn't prepare local task list", e)
-                    syncResult.databaseError = true
-                }
-
-                val syncPhase = R.string.sync_phase_journals
-                val title = context.getString(R.string.sync_error_tasks, account.name)
-
-                notificationManager.setThrowable(e)
-
-                val detailsIntent = notificationManager.detailsIntent
-                detailsIntent.putExtra(Constants.KEY_ACCOUNT, account)
-                if (e !is Exceptions.UnauthorizedException) {
-                    detailsIntent.putExtra(DebugInfoActivity.KEY_AUTHORITY, authority)
-                    detailsIntent.putExtra(DebugInfoActivity.KEY_PHASE, syncPhase)
-                }
-
-                notificationManager.notify(title, context.getString(syncPhase))
-            } catch (e: OutOfMemoryError) {
-                val syncPhase = R.string.sync_phase_journals
-                val title = context.getString(R.string.sync_error_tasks, account.name)
-                notificationManager.setThrowable(e)
-                val detailsIntent = notificationManager.detailsIntent
-                detailsIntent.putExtra(Constants.KEY_ACCOUNT, account)
-                notificationManager.notify(title, context.getString(syncPhase))
-            }
 
             Logger.log.info("Task sync complete")
         }