1 /* 2 * Copyright (C) 2009 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 17 package android.content; 18 19 import android.content.pm.RegisteredServicesCache; 20 import android.content.pm.XmlSerializerAndParser; 21 import android.content.res.Resources; 22 import android.content.res.TypedArray; 23 import android.util.ArrayMap; 24 import android.util.AttributeSet; 25 import android.util.SparseArray; 26 27 import com.android.internal.annotations.GuardedBy; 28 29 import org.xmlpull.v1.XmlPullParser; 30 import org.xmlpull.v1.XmlSerializer; 31 import org.xmlpull.v1.XmlPullParserException; 32 33 import java.io.IOException; 34 import java.util.ArrayList; 35 import java.util.Collection; 36 37 /** 38 * A cache of services that export the {@link android.content.ISyncAdapter} interface. 39 * @hide 40 */ 41 public class SyncAdaptersCache extends RegisteredServicesCache<SyncAdapterType> { 42 private static final String TAG = "Account"; 43 44 private static final String SERVICE_INTERFACE = "android.content.SyncAdapter"; 45 private static final String SERVICE_META_DATA = "android.content.SyncAdapter"; 46 private static final String ATTRIBUTES_NAME = "sync-adapter"; 47 private static final MySerializer sSerializer = new MySerializer(); 48 49 @GuardedBy("mServicesLock") 50 private SparseArray<ArrayMap<String,String[]>> mAuthorityToSyncAdapters 51 = new SparseArray<>(); 52 SyncAdaptersCache(Context context)53 public SyncAdaptersCache(Context context) { 54 super(context, SERVICE_INTERFACE, SERVICE_META_DATA, ATTRIBUTES_NAME, sSerializer); 55 } 56 parseServiceAttributes(Resources res, String packageName, AttributeSet attrs)57 public SyncAdapterType parseServiceAttributes(Resources res, 58 String packageName, AttributeSet attrs) { 59 TypedArray sa = res.obtainAttributes(attrs, 60 com.android.internal.R.styleable.SyncAdapter); 61 try { 62 final String authority = 63 sa.getString(com.android.internal.R.styleable.SyncAdapter_contentAuthority); 64 final String accountType = 65 sa.getString(com.android.internal.R.styleable.SyncAdapter_accountType); 66 if (authority == null || accountType == null) { 67 return null; 68 } 69 final boolean userVisible = 70 sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_userVisible, true); 71 final boolean supportsUploading = 72 sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_supportsUploading, 73 true); 74 final boolean isAlwaysSyncable = 75 sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_isAlwaysSyncable, 76 false); 77 final boolean allowParallelSyncs = 78 sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_allowParallelSyncs, 79 false); 80 final String settingsActivity = 81 sa.getString(com.android.internal.R.styleable 82 .SyncAdapter_settingsActivity); 83 return new SyncAdapterType(authority, accountType, userVisible, supportsUploading, 84 isAlwaysSyncable, allowParallelSyncs, settingsActivity, packageName); 85 } finally { 86 sa.recycle(); 87 } 88 } 89 90 @Override onServicesChangedLocked(int userId)91 protected void onServicesChangedLocked(int userId) { 92 synchronized (mServicesLock) { 93 ArrayMap<String,String[]> adapterMap = mAuthorityToSyncAdapters.get(userId); 94 if (adapterMap != null) { 95 adapterMap.clear(); 96 } 97 } 98 99 super.onServicesChangedLocked(userId); 100 } 101 getSyncAdapterPackagesForAuthority(String authority, int userId)102 public String[] getSyncAdapterPackagesForAuthority(String authority, int userId) { 103 synchronized (mServicesLock) { 104 ArrayMap<String,String[]> adapterMap = mAuthorityToSyncAdapters.get(userId); 105 if (adapterMap == null) { 106 adapterMap = new ArrayMap<>(); 107 mAuthorityToSyncAdapters.put(userId, adapterMap); 108 } 109 // If the mapping exists, return it 110 if (adapterMap.containsKey(authority)) { 111 return adapterMap.get(authority); 112 } 113 // Create the mapping and cache it 114 String[] syncAdapterPackages; 115 final Collection<RegisteredServicesCache.ServiceInfo<SyncAdapterType>> serviceInfos; 116 serviceInfos = getAllServices(userId); 117 ArrayList<String> packages = new ArrayList<>(); 118 for (RegisteredServicesCache.ServiceInfo<SyncAdapterType> serviceInfo : serviceInfos) { 119 if (authority.equals(serviceInfo.type.authority) 120 && serviceInfo.componentName != null) { 121 packages.add(serviceInfo.componentName.getPackageName()); 122 } 123 } 124 syncAdapterPackages = new String[packages.size()]; 125 packages.toArray(syncAdapterPackages); 126 adapterMap.put(authority, syncAdapterPackages); 127 128 return syncAdapterPackages; 129 } 130 } 131 132 @Override onUserRemoved(int userId)133 protected void onUserRemoved(int userId) { 134 synchronized (mServicesLock) { 135 mAuthorityToSyncAdapters.remove(userId); 136 } 137 138 super.onUserRemoved(userId); 139 } 140 141 static class MySerializer implements XmlSerializerAndParser<SyncAdapterType> { writeAsXml(SyncAdapterType item, XmlSerializer out)142 public void writeAsXml(SyncAdapterType item, XmlSerializer out) throws IOException { 143 out.attribute(null, "authority", item.authority); 144 out.attribute(null, "accountType", item.accountType); 145 } 146 createFromXml(XmlPullParser parser)147 public SyncAdapterType createFromXml(XmlPullParser parser) 148 throws IOException, XmlPullParserException { 149 final String authority = parser.getAttributeValue(null, "authority"); 150 final String accountType = parser.getAttributeValue(null, "accountType"); 151 return SyncAdapterType.newKey(authority, accountType); 152 } 153 } 154 } 155