| /* |
| * Copyright (C) 2012 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.server.pm; |
| |
| import android.annotation.NonNull; |
| import android.content.IntentFilter; |
| |
| import com.android.server.utils.Snappable; |
| import com.android.server.utils.SnapshotCache; |
| |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| |
| public class PreferredIntentResolver |
| extends WatchedIntentResolver<PreferredActivity, PreferredActivity> |
| implements Snappable { |
| @Override |
| protected PreferredActivity[] newArray(int size) { |
| return new PreferredActivity[size]; |
| } |
| |
| @Override |
| protected boolean isPackageForFilter(String packageName, PreferredActivity filter) { |
| return packageName.equals(filter.mPref.mComponent.getPackageName()); |
| } |
| |
| @Override |
| protected void dumpFilter(PrintWriter out, String prefix, |
| PreferredActivity filter) { |
| filter.mPref.dump(out, prefix, filter); |
| } |
| |
| @Override |
| protected IntentFilter getIntentFilter(@NonNull PreferredActivity input) { |
| return input.getIntentFilter(); |
| } |
| |
| public boolean shouldAddPreferredActivity(PreferredActivity pa) { |
| ArrayList<PreferredActivity> pal = findFilters(pa); |
| if (pal == null || pal.isEmpty()) { |
| return true; |
| } |
| if (!pa.mPref.mAlways) { |
| return false; |
| } |
| final int activityCount = pal.size(); |
| for (int i = 0; i < activityCount; i++) { |
| PreferredActivity cur = pal.get(i); |
| if (cur.mPref.mAlways |
| && cur.mPref.mMatch == (pa.mPref.mMatch & IntentFilter.MATCH_CATEGORY_MASK) |
| && cur.mPref.sameSet(pa.mPref)) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| public PreferredIntentResolver() { |
| super(); |
| mSnapshot = makeCache(); |
| } |
| |
| // Take the snapshot of F |
| protected PreferredActivity snapshot(PreferredActivity f) { |
| return (f == null) ? null : f.snapshot(); |
| } |
| |
| // Copy constructor used only to create a snapshot. |
| private PreferredIntentResolver(PreferredIntentResolver f) { |
| copyFrom(f); |
| mSnapshot = new SnapshotCache.Sealed(); |
| } |
| |
| // The cache for snapshots, so they are not rebuilt if the base object has not |
| // changed. |
| final SnapshotCache<PreferredIntentResolver> mSnapshot; |
| |
| private SnapshotCache makeCache() { |
| return new SnapshotCache<PreferredIntentResolver>(this, this) { |
| @Override |
| public PreferredIntentResolver createSnapshot() { |
| return new PreferredIntentResolver(mSource); |
| }}; |
| } |
| |
| /** |
| * Return a snapshot of the current object. The snapshot is a read-only copy suitable |
| * for read-only methods. |
| * @return A snapshot of the current object. |
| */ |
| public PreferredIntentResolver snapshot() { |
| return mSnapshot.snapshot(); |
| } |
| } |