Implemented blocked numbers migration

+ After upgrading to N, users need to be able to migrate their
blocked number list from the Dialer solution to the framework
solution. Prior to migrating, when a user attempts to block a number,
a Dialog is shown prompting them to migrate their numbers. Users
must migrate to continue adding numbers to their block list. Users
that decide not to migrate will still have calls and voicemails
blocked for numbers that are currently on their block list.
+ This CL implements the logic which copies users' blocked numbers
lists to the framework solution.

Bug: 26664600
Change-Id: I44dee1306b5daca6f558c81b2b58252b35013e09

5 files changed, 154 insertions, 38 deletions

diff --git a/src/com/android/dialer/CallDetailActivity.java b/src/com/android/dialer/CallDetailActivity.java
index d2cda92b1..6c8d7708a 100644
--- a/src/com/android/dialer/CallDetailActivity.java
+++ b/src/com/android/dialer/CallDetailActivity.java
@@ -375,8 +375,9 @@ public class CallDetailActivity extends AppCompatActivity
         int resId = view.getId();
         if (resId == R.id.call_detail_action_block) {
             FilteredNumberCompat
-                    .showBlockNumberDialogFlow(mBlockedNumberId, mNumber, mDetails.countryIso,
-                            mDisplayNumber, R.id.call_detail, getFragmentManager(), this);
+                    .showBlockNumberDialogFlow(mContext.getContentResolver(), mBlockedNumberId,
+                            mNumber, mDetails.countryIso, mDisplayNumber, R.id.call_detail,
+                            getFragmentManager(), this);
         } else if (resId == R.id.call_detail_action_copy) {
             ClipboardUtils.copyText(mContext, null, mNumber, true);
         } else if (resId == R.id.call_detail_action_edit_before_call) {
diff --git a/src/com/android/dialer/calllog/CallLogListItemViewHolder.java b/src/com/android/dialer/calllog/CallLogListItemViewHolder.java
index de9bf7739..750914bdf 100644
--- a/src/com/android/dialer/calllog/CallLogListItemViewHolder.java
+++ b/src/com/android/dialer/calllog/CallLogListItemViewHolder.java
@@ -373,8 +373,8 @@ public final class CallLogListItemViewHolder extends RecyclerView.ViewHolder
         int resId = item.getItemId();
         if (resId == R.id.context_menu_block_number) {
             FilteredNumberCompat
-                    .showBlockNumberDialogFlow(blockId, number, countryIso, displayNumber,
-                            R.id.floating_action_button_container,
+                    .showBlockNumberDialogFlow(mContext.getContentResolver(), blockId, number,
+                            countryIso, displayNumber, R.id.floating_action_button_container,
                             ((Activity) mContext).getFragmentManager(),
                             mFilteredNumberDialogCallback);
             return true;
diff --git a/src/com/android/dialer/compat/FilteredNumberCompat.java b/src/com/android/dialer/compat/FilteredNumberCompat.java
index 743bf28b9..c74ff9d1d 100644
--- a/src/com/android/dialer/compat/FilteredNumberCompat.java
+++ b/src/com/android/dialer/compat/FilteredNumberCompat.java
@@ -19,6 +19,7 @@
 import com.google.common.base.Preconditions;
 
 import android.app.FragmentManager;
+import android.content.ContentResolver;
 import android.content.ContentUris;
 import android.content.ContentValues;
 import android.net.Uri;
@@ -35,8 +36,8 @@ import com.android.dialer.database.FilteredNumberContract.FilteredNumberSources;
 import com.android.dialer.database.FilteredNumberContract.FilteredNumberTypes;
 import com.android.dialer.filterednumber.BlockNumberDialogFragment;
 import com.android.dialer.filterednumber.BlockNumberDialogFragment.Callback;
+import com.android.dialer.filterednumber.BlockedNumbersMigrator;
 import com.android.dialer.filterednumber.MigrateBlockedNumbersDialogFragment;
-import com.android.dialer.filterednumber.MigrateBlockedNumbersDialogFragment.Listener;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -239,20 +240,24 @@ public class FilteredNumberCompat {
      * @param callback (optional) The {@link Callback} to call when the block or unblock operation
      * is complete.
      */
-    public static void showBlockNumberDialogFlow(final Integer blockId, final String number,
-            final String countryIso, final String displayNumber, final Integer parentViewId,
+    public static void showBlockNumberDialogFlow(final ContentResolver contentResolver,
+            final Integer blockId, final String number, final String countryIso,
+            final String displayNumber, final Integer parentViewId,
             final FragmentManager fragmentManager, @Nullable final Callback callback) {
         // If the user is blocking a number and isn't using the framework solution when they
         // should be, show the migration dialog
         if (shouldShowMigrationDialog(blockId == null)) {
-            MigrateBlockedNumbersDialogFragment.newInstance(new Listener() {
-                @Override
-                public void onComplete() {
-                    BlockNumberDialogFragment
-                            .show(null, number, countryIso, displayNumber, parentViewId,
-                                    fragmentManager, callback);
-                }
-            }).show(fragmentManager, "MigrateBlockedNumbers");
+            MigrateBlockedNumbersDialogFragment
+                    .newInstance(new BlockedNumbersMigrator(contentResolver),
+                            new BlockedNumbersMigrator.Listener() {
+                                @Override
+                                public void onComplete() {
+                                    BlockNumberDialogFragment
+                                            .show(null, number, countryIso, displayNumber,
+                                                    parentViewId,
+                                                    fragmentManager, callback);
+                                }
+                            }).show(fragmentManager, "MigrateBlockedNumbers");
             return;
         }
         BlockNumberDialogFragment
diff --git a/src/com/android/dialer/filterednumber/BlockedNumbersMigrator.java b/src/com/android/dialer/filterednumber/BlockedNumbersMigrator.java
new file mode 100644
index 000000000..de201d98a
--- /dev/null
+++ b/src/com/android/dialer/filterednumber/BlockedNumbersMigrator.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.dialer.filterednumber;
+
+import com.google.common.base.Preconditions;
+
+import android.content.ContentResolver;
+import android.content.ContentValues;
+import android.database.Cursor;
+import android.os.AsyncTask;
+import android.support.annotation.Nullable;
+
+import com.android.dialer.compat.BlockedNumbersSdkCompat;
+import com.android.dialer.compat.FilteredNumberCompat;
+import com.android.dialer.database.FilteredNumberContract;
+import com.android.dialer.database.FilteredNumberContract.FilteredNumber;
+import com.android.dialer.database.FilteredNumberContract.FilteredNumberColumns;
+
+/**
+ * Class which should be used to migrate numbers from {@link FilteredNumberContract} blocking to
+ * {@link android.provider.BlockedNumberContract} blocking.
+ */
+public class BlockedNumbersMigrator {
+
+    /**
+     * Listener for the operation to migrate from {@link FilteredNumberContract} blocking to
+     * {@link android.provider.BlockedNumberContract} blocking.
+     */
+    public interface Listener {
+
+        /**
+         * Called when the migration operation is finished.
+         */
+        void onComplete();
+    }
+
+    private final ContentResolver mContentResolver;
+
+    /**
+     * Creates a new BlockedNumbersMigrate, using the given {@link ContentResolver} to perform
+     * queries against the blocked numbers tables.
+     *
+     * @param contentResolver The ContentResolver
+     * @throws NullPointerException if contentResolver is null
+     */
+    public BlockedNumbersMigrator(ContentResolver contentResolver) {
+        mContentResolver = Preconditions.checkNotNull(contentResolver);
+    }
+
+    /**
+     * Copies all of the numbers in the {@link FilteredNumberContract} block list to the
+     * {@link android.provider.BlockedNumberContract} block list.
+     *
+     * @param listener {@link Listener} called once the migration is complete.
+     * @return {@code true} if the migrate can be attempted, {@code false} otherwise.
+     * @throws NullPointerException if listener is null
+     */
+    public boolean migrate(final Listener listener) {
+        if (!FilteredNumberCompat.canUseNewFiltering()) {
+            return false;
+        }
+        Preconditions.checkNotNull(listener);
+        new AsyncTask<Void, Void, Boolean>() {
+            @Override
+            protected Boolean doInBackground(Void... params) {
+                return migrateToNewBlockingInBackground(mContentResolver);
+            }
+
+            @Override
+            protected void onPostExecute(Boolean isSuccessful) {
+                FilteredNumberCompat.setHasMigratedToNewBlocking(isSuccessful);
+                listener.onComplete();
+            }
+        }.execute();
+        return true;
+    }
+
+    private static boolean migrateToNewBlockingInBackground(ContentResolver resolver) {
+        try (Cursor cursor = resolver.query(FilteredNumber.CONTENT_URI,
+                new String[]{FilteredNumberColumns.NUMBER}, null, null, null)) {
+            if (cursor == null) {
+                return false;
+            }
+
+            while (cursor.moveToNext()) {
+                String originalNumber = cursor
+                        .getString(cursor.getColumnIndex(FilteredNumberColumns.NUMBER));
+                if (isNumberInNewBlocking(resolver, originalNumber)) {
+                    continue;
+                }
+                ContentValues values = new ContentValues();
+                values.put(BlockedNumbersSdkCompat.COLUMN_ORIGINAL_NUMBER, originalNumber);
+                resolver.insert(BlockedNumbersSdkCompat.CONTENT_URI, values);
+            }
+            return true;
+        }
+    }
+
+    private static boolean isNumberInNewBlocking(ContentResolver resolver, String originalNumber) {
+        try (Cursor cursor = resolver.query(BlockedNumbersSdkCompat.CONTENT_URI,
+                new String[]{BlockedNumbersSdkCompat._ID},
+                BlockedNumbersSdkCompat.COLUMN_ORIGINAL_NUMBER + " = ?",
+                new String[] {originalNumber}, null)) {
+            return cursor != null && cursor.getCount() != 0;
+        }
+    }
+}
diff --git a/src/com/android/dialer/filterednumber/MigrateBlockedNumbersDialogFragment.java b/src/com/android/dialer/filterednumber/MigrateBlockedNumbersDialogFragment.java
index 3783519e5..efcb50591 100644
--- a/src/com/android/dialer/filterednumber/MigrateBlockedNumbersDialogFragment.java
+++ b/src/com/android/dialer/filterednumber/MigrateBlockedNumbersDialogFragment.java
@@ -24,7 +24,6 @@ import android.app.DialogFragment;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
 import android.os.Bundle;
-import android.support.annotation.Nullable;
 
 import com.android.dialer.R;
 
@@ -34,31 +33,23 @@ import com.android.dialer.R;
  */
 public class MigrateBlockedNumbersDialogFragment extends DialogFragment {
 
-    /**
-     * Listener for the operation to migrate from
-     * {@link com.android.dialer.database.FilteredNumberContract} blocking to
-     * {@link android.provider.BlockedNumberContract} blocking.
-     */
-    public interface Listener {
-
-        /**
-         * Callback called when the migration operation is finished.
-         */
-        void onComplete();
-    }
-
-    private Listener mMigrationListener;
+    private BlockedNumbersMigrator mBlockedNumbersMigrator;
+    private BlockedNumbersMigrator.Listener mMigrationListener;
 
     /**
      * Creates a new MigrateBlockedNumbersDialogFragment.
      *
-     * @param migrationListener The {@link Listener} to call when the
+     * @param blockedNumbersMigrator The {@link BlockedNumbersMigrator} which will be used to
+     * migrate the numbers.
+     * @param migrationListener The {@link BlockedNumbersMigrator.Listener} to call when the
      * migration is complete.
-     * @return the new MigrateBlockedNumbersDialogFragment.
-     * @throws NullPointerException if migrationListener is {@code null}.
+     * @return The new MigrateBlockedNumbersDialogFragment.
+     * @throws NullPointerException if blockedNumbersMigrator or migrationListener are {@code null}.
      */
-    public static DialogFragment newInstance(Listener migrationListener) {
+    public static DialogFragment newInstance(BlockedNumbersMigrator blockedNumbersMigrator,
+            BlockedNumbersMigrator.Listener migrationListener) {
         MigrateBlockedNumbersDialogFragment fragment = new MigrateBlockedNumbersDialogFragment();
+        fragment.mBlockedNumbersMigrator = Preconditions.checkNotNull(blockedNumbersMigrator);
         fragment.mMigrationListener = Preconditions.checkNotNull(migrationListener);
         return fragment;
     }
@@ -79,10 +70,7 @@ public class MigrateBlockedNumbersDialogFragment extends DialogFragment {
         return new OnClickListener() {
             @Override
             public void onClick(DialogInterface dialog, int which) {
-                // TODO(maxwelb): Perform actual migration, call
-                // FilteredNumberCompat#hasMigratedToNewBlocking
-
-                mMigrationListener.onComplete();
+                mBlockedNumbersMigrator.migrate(mMigrationListener);
             }
         };
     }
@@ -91,6 +79,7 @@ public class MigrateBlockedNumbersDialogFragment extends DialogFragment {
     public void onPause() {
         // The dialog is dismissed and state is cleaned up onPause, i.e. rotation.
         dismiss();
+        mBlockedNumbersMigrator = null;
         mMigrationListener = null;
         super.onPause();
     }