Home | History | Annotate | Download | only in adapter 
      1 /*
      2  * Copyright (C) 2008-2009 Marc Blank
      3  * Licensed to The Android Open Source Project.
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 
     18 package com.android.exchange.adapter;
     19 
     20 import com.android.email.Email;
     21 import com.android.email.provider.EmailContent.Account;
     22 import com.android.email.provider.EmailContent.Mailbox;
     23 import com.android.exchange.EasSyncService;
     24 
     25 import android.content.Context;
     26 
     27 import java.io.IOException;
     28 import java.io.InputStream;
     29 
     30 /**
     31  * Parent class of all sync adapters (EasMailbox, EasCalendar, and EasContacts)
     32  *
     33  */
     34 public abstract class AbstractSyncAdapter {
     35 
     36     public static final int SECONDS = 1000;
     37     public static final int MINUTES = SECONDS*60;
     38     public static final int HOURS = MINUTES*60;
     39     public static final int DAYS = HOURS*24;
     40     public static final int WEEKS = DAYS*7;
     41 
     42     public Mailbox mMailbox;
     43     public EasSyncService mService;
     44     public Context mContext;
     45     public Account mAccount;
     46     public final android.accounts.Account mAccountManagerAccount;
     47 
     48     // Create the data for local changes that need to be sent up to the server
     49     public abstract boolean sendLocalChanges(Serializer s)
     50         throws IOException;
     51     // Parse incoming data from the EAS server, creating, modifying, and deleting objects as
     52     // required through the EmailProvider
     53     public abstract boolean parse(InputStream is)
     54         throws IOException;
     55     // The name used to specify the collection type of the target (Email, Calendar, or Contacts)
     56     public abstract String getCollectionName();
     57     public abstract void cleanup();
     58     public abstract boolean isSyncable();
     59 
     60     public boolean isLooping() {
     61         return false;
     62     }
     63 
     64     public AbstractSyncAdapter(Mailbox mailbox, EasSyncService service) {
     65         mMailbox = mailbox;
     66         mService = service;
     67         mContext = service.mContext;
     68         mAccount = service.mAccount;
     69         mAccountManagerAccount = new android.accounts.Account(mAccount.mEmailAddress,
     70                 Email.EXCHANGE_ACCOUNT_MANAGER_TYPE);
     71     }
     72 
     73     public void userLog(String ...strings) {
     74         mService.userLog(strings);
     75     }
     76 
     77     public void incrementChangeCount() {
     78         mService.mChangeCount++;
     79     }
     80 
     81     /**
     82      * Returns the current SyncKey; override if the SyncKey is stored elsewhere (as for Contacts)
     83      * @return the current SyncKey for the Mailbox
     84      * @throws IOException
     85      */
     86     public String getSyncKey() throws IOException {
     87         if (mMailbox.mSyncKey == null) {
     88             userLog("Reset SyncKey to 0");
     89             mMailbox.mSyncKey = "0";
     90         }
     91         return mMailbox.mSyncKey;
     92     }
     93 
     94     public void setSyncKey(String syncKey, boolean inCommands) throws IOException {
     95         mMailbox.mSyncKey = syncKey;
     96     }
     97 }
     98 
     99