| /* |
| * Copyright (C) 2014 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.content.ComponentName; |
| import android.content.IntentFilter; |
| import android.util.Log; |
| import android.util.TypedXmlPullParser; |
| import android.util.TypedXmlSerializer; |
| |
| import com.android.internal.util.XmlUtils; |
| import com.android.server.utils.SnapshotCache; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import java.io.IOException; |
| |
| class PersistentPreferredActivity extends WatchedIntentFilter { |
| private static final String ATTR_NAME = "name"; // component name |
| private static final String ATTR_FILTER = "filter"; // filter |
| private static final String ATTR_SET_BY_DPM = "set-by-dpm"; // set by DPM |
| |
| private static final String TAG = "PersistentPreferredActivity"; |
| |
| private static final boolean DEBUG_FILTERS = false; |
| |
| final ComponentName mComponent; |
| final boolean mIsSetByDpm; |
| |
| // The cache for snapshots, so they are not rebuilt if the base object has not |
| // changed. |
| final SnapshotCache<PersistentPreferredActivity> mSnapshot; |
| |
| private SnapshotCache makeCache() { |
| return new SnapshotCache<PersistentPreferredActivity>(this, this) { |
| @Override |
| public PersistentPreferredActivity createSnapshot() { |
| PersistentPreferredActivity s = new PersistentPreferredActivity(mSource); |
| s.seal(); |
| return s; |
| }}; |
| } |
| |
| PersistentPreferredActivity(IntentFilter filter, ComponentName activity, boolean isSetByDpm) { |
| super(filter); |
| mComponent = activity; |
| mIsSetByDpm = isSetByDpm; |
| mSnapshot = makeCache(); |
| } |
| |
| PersistentPreferredActivity(WatchedIntentFilter filter, ComponentName activity, |
| boolean isSetByDpm) { |
| this(filter.mFilter, activity, isSetByDpm); |
| } |
| |
| // Copy constructor used only to create a snapshot |
| private PersistentPreferredActivity(PersistentPreferredActivity f) { |
| super(f); |
| mComponent = f.mComponent; |
| mIsSetByDpm = f.mIsSetByDpm; |
| mSnapshot = new SnapshotCache.Sealed(); |
| } |
| |
| PersistentPreferredActivity(TypedXmlPullParser parser) |
| throws XmlPullParserException, IOException { |
| String shortComponent = parser.getAttributeValue(null, ATTR_NAME); |
| mComponent = ComponentName.unflattenFromString(shortComponent); |
| if (mComponent == null) { |
| PackageManagerService.reportSettingsProblem(Log.WARN, |
| "Error in package manager settings: " + |
| "Bad activity name " + shortComponent + |
| " at " + parser.getPositionDescription()); |
| } |
| mIsSetByDpm = parser.getAttributeBoolean(null, ATTR_SET_BY_DPM, false); |
| |
| int outerDepth = parser.getDepth(); |
| String tagName = parser.getName(); |
| int type; |
| while ((type = parser.next()) != XmlPullParser.END_DOCUMENT |
| && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { |
| tagName = parser.getName(); |
| if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { |
| continue; |
| } else if (type == XmlPullParser.START_TAG) { |
| if (tagName.equals(ATTR_FILTER)) { |
| break; |
| } else { |
| PackageManagerService.reportSettingsProblem(Log.WARN, |
| "Unknown element: " + tagName + |
| " at " + parser.getPositionDescription()); |
| XmlUtils.skipCurrentTag(parser); |
| } |
| } |
| } |
| if (tagName.equals(ATTR_FILTER)) { |
| mFilter.readFromXml(parser); |
| } else { |
| PackageManagerService.reportSettingsProblem(Log.WARN, |
| "Missing element filter at " + |
| parser.getPositionDescription()); |
| XmlUtils.skipCurrentTag(parser); |
| } |
| mSnapshot = makeCache(); |
| } |
| |
| public void writeToXml(TypedXmlSerializer serializer) throws IOException { |
| serializer.attribute(null, ATTR_NAME, mComponent.flattenToShortString()); |
| serializer.attributeBoolean(null, ATTR_SET_BY_DPM, mIsSetByDpm); |
| serializer.startTag(null, ATTR_FILTER); |
| mFilter.writeToXml(serializer); |
| serializer.endTag(null, ATTR_FILTER); |
| } |
| |
| public IntentFilter getIntentFilter() { |
| return mFilter; |
| } |
| |
| @Override |
| public String toString() { |
| return "PersistentPreferredActivity{0x" + Integer.toHexString(System.identityHashCode(this)) |
| + " " + mComponent.flattenToShortString() |
| + ", mIsSetByDpm=" + mIsSetByDpm + "}"; |
| } |
| |
| public PersistentPreferredActivity snapshot() { |
| return mSnapshot.snapshot(); |
| } |
| } |