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      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.AttributeSet;
     24 import org.xmlpull.v1.XmlPullParser;
     25 import org.xmlpull.v1.XmlSerializer;
     26 import org.xmlpull.v1.XmlPullParserException;
     27 
     28 import java.io.IOException;
     29 
     30 /**
     31  * A cache of services that export the {@link android.content.ISyncAdapter} interface.
     32  * @hide
     33  */
     34 public class SyncAdaptersCache extends RegisteredServicesCache<SyncAdapterType> {
     35     private static final String TAG = "Account";
     36 
     37     private static final String SERVICE_INTERFACE = "android.content.SyncAdapter";
     38     private static final String SERVICE_META_DATA = "android.content.SyncAdapter";
     39     private static final String ATTRIBUTES_NAME = "sync-adapter";
     40     private static final MySerializer sSerializer = new MySerializer();
     41 
     42     public SyncAdaptersCache(Context context) {
     43         super(context, SERVICE_INTERFACE, SERVICE_META_DATA, ATTRIBUTES_NAME, sSerializer);
     44     }
     45 
     46     public SyncAdapterType parseServiceAttributes(Resources res,
     47             String packageName, AttributeSet attrs) {
     48         TypedArray sa = res.obtainAttributes(attrs,
     49                 com.android.internal.R.styleable.SyncAdapter);
     50         try {
     51             final String authority =
     52                     sa.getString(com.android.internal.R.styleable.SyncAdapter_contentAuthority);
     53             final String accountType =
     54                     sa.getString(com.android.internal.R.styleable.SyncAdapter_accountType);
     55             if (authority == null || accountType == null) {
     56                 return null;
     57             }
     58             final boolean userVisible =
     59                     sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_userVisible, true);
     60             final boolean supportsUploading =
     61                     sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_supportsUploading,
     62                             true);
     63             final boolean isAlwaysSyncable =
     64                     sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_isAlwaysSyncable,
     65                             false);
     66             final boolean allowParallelSyncs =
     67                     sa.getBoolean(com.android.internal.R.styleable.SyncAdapter_allowParallelSyncs,
     68                             false);
     69             final String settingsActivity =
     70                     sa.getString(com.android.internal.R.styleable
     71                             .SyncAdapter_settingsActivity);
     72             return new SyncAdapterType(authority, accountType, userVisible, supportsUploading,
     73                     isAlwaysSyncable, allowParallelSyncs, settingsActivity);
     74         } finally {
     75             sa.recycle();
     76         }
     77     }
     78 
     79     static class MySerializer implements XmlSerializerAndParser<SyncAdapterType> {
     80         public void writeAsXml(SyncAdapterType item, XmlSerializer out) throws IOException {
     81             out.attribute(null, "authority", item.authority);
     82             out.attribute(null, "accountType", item.accountType);
     83         }
     84 
     85         public SyncAdapterType createFromXml(XmlPullParser parser)
     86                 throws IOException, XmlPullParserException {
     87             final String authority = parser.getAttributeValue(null, "authority");
     88             final String accountType = parser.getAttributeValue(null, "accountType");
     89             return SyncAdapterType.newKey(authority, accountType);
     90         }
     91     }
     92 }
     93