1/* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.server.pm; 18 19import com.android.internal.util.XmlUtils; 20 21import org.xmlpull.v1.XmlPullParser; 22import org.xmlpull.v1.XmlPullParserException; 23import org.xmlpull.v1.XmlSerializer; 24 25import android.content.ComponentName; 26import android.content.IntentFilter; 27import android.util.Log; 28 29import java.io.IOException; 30 31class PersistentPreferredActivity extends IntentFilter { 32 private static final String ATTR_NAME = "name"; // component name 33 private static final String ATTR_FILTER = "filter"; // filter 34 35 private static final String TAG = "PersistentPreferredActivity"; 36 37 private static final boolean DEBUG_FILTERS = false; 38 39 final ComponentName mComponent; 40 41 PersistentPreferredActivity(IntentFilter filter, ComponentName activity) { 42 super(filter); 43 mComponent = activity; 44 } 45 46 PersistentPreferredActivity(XmlPullParser parser) throws XmlPullParserException, IOException { 47 String shortComponent = parser.getAttributeValue(null, ATTR_NAME); 48 mComponent = ComponentName.unflattenFromString(shortComponent); 49 if (mComponent == null) { 50 PackageManagerService.reportSettingsProblem(Log.WARN, 51 "Error in package manager settings: " + 52 "Bad activity name " + shortComponent + 53 " at " + parser.getPositionDescription()); 54 } 55 int outerDepth = parser.getDepth(); 56 String tagName = parser.getName(); 57 int type; 58 while ((type = parser.next()) != XmlPullParser.END_DOCUMENT 59 && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) { 60 tagName = parser.getName(); 61 if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) { 62 continue; 63 } else if (type == XmlPullParser.START_TAG) { 64 if (tagName.equals(ATTR_FILTER)) { 65 break; 66 } else { 67 PackageManagerService.reportSettingsProblem(Log.WARN, 68 "Unknown element: " + tagName + 69 " at " + parser.getPositionDescription()); 70 XmlUtils.skipCurrentTag(parser); 71 } 72 } 73 } 74 if (tagName.equals(ATTR_FILTER)) { 75 readFromXml(parser); 76 } else { 77 PackageManagerService.reportSettingsProblem(Log.WARN, 78 "Missing element filter at " + 79 parser.getPositionDescription()); 80 XmlUtils.skipCurrentTag(parser); 81 } 82 } 83 84 public void writeToXml(XmlSerializer serializer) throws IOException { 85 serializer.attribute(null, ATTR_NAME, mComponent.flattenToShortString()); 86 serializer.startTag(null, ATTR_FILTER); 87 super.writeToXml(serializer); 88 serializer.endTag(null, ATTR_FILTER); 89 } 90 91 @Override 92 public String toString() { 93 return "PersistentPreferredActivity{0x" + Integer.toHexString(System.identityHashCode(this)) 94 + " " + mComponent.flattenToShortString() + "}"; 95 } 96} 97