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      1 /* Copyright (C) 2010 The Android Open Source Project.
      2  *
      3  * Licensed under the Apache License, Version 2.0 (the "License");
      4  * you may not use this file except in compliance with the License.
      5  * You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software
     10  * distributed under the License is distributed on an "AS IS" BASIS,
     11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12  * See the License for the specific language governing permissions and
     13  * limitations under the License.
     14  */
     15 
     16 package com.android.exchange.adapter;
     17 
     18 import com.android.exchange.EasSyncService;
     19 
     20 import java.io.IOException;
     21 import java.io.InputStream;
     22 
     23 /**
     24  * Parse the result of a MoveItems command.
     25  */
     26 public class MoveItemsParser extends Parser {
     27     private final EasSyncService mService;
     28     private int mStatusCode = 0;
     29     private String mNewServerId;
     30 
     31     // These are the EAS status codes for MoveItems
     32     private static final int STATUS_NO_SOURCE_FOLDER = 1;
     33     private static final int STATUS_NO_DESTINATION_FOLDER = 2;
     34     private static final int STATUS_SUCCESS = 3;
     35     private static final int STATUS_SOURCE_DESTINATION_SAME = 4;
     36     private static final int STATUS_INTERNAL_ERROR = 5;
     37     private static final int STATUS_ALREADY_EXISTS = 6;
     38     private static final int STATUS_LOCKED = 7;
     39 
     40     // These are the status values we return to callers
     41     public static final int STATUS_CODE_SUCCESS = 1;
     42     public static final int STATUS_CODE_REVERT = 2;
     43     public static final int STATUS_CODE_RETRY = 3;
     44 
     45     public MoveItemsParser(InputStream in, EasSyncService service) throws IOException {
     46         super(in);
     47         mService = service;
     48     }
     49 
     50     public int getStatusCode() {
     51         return mStatusCode;
     52     }
     53 
     54     public String getNewServerId() {
     55         return mNewServerId;
     56     }
     57 
     58     public void parseResponse() throws IOException {
     59         while (nextTag(Tags.MOVE_RESPONSE) != END) {
     60             if (tag == Tags.MOVE_STATUS) {
     61                 int status = getValueInt();
     62                 // Convert the EAS status code with our external codes
     63                 switch(status) {
     64                     case STATUS_SUCCESS:
     65                     case STATUS_SOURCE_DESTINATION_SAME:
     66                     case STATUS_ALREADY_EXISTS:
     67                         // Same destination and already exists are ok with us; we'll continue as
     68                         // if the move succeeded
     69                         mStatusCode = STATUS_CODE_SUCCESS;
     70                         break;
     71                     case STATUS_LOCKED:
     72                         // This sounds like a transient error, so we can safely retry
     73                         mStatusCode = STATUS_CODE_RETRY;
     74                         break;
     75                     case STATUS_NO_SOURCE_FOLDER:
     76                     case STATUS_NO_DESTINATION_FOLDER:
     77                     case STATUS_INTERNAL_ERROR:
     78                     default:
     79                         // These are non-recoverable, so we'll revert the message to its original
     80                         // mailbox.  If there's an unknown response, revert
     81                         mStatusCode = STATUS_CODE_REVERT;
     82                         break;
     83                 }
     84                 if (status != STATUS_SUCCESS) {
     85                     // There's not much to be done if this fails
     86                     mService.userLog("Error in MoveItems: " + status);
     87                 }
     88             } else if (tag == Tags.MOVE_DSTMSGID) {
     89                 mNewServerId = getValue();
     90                 mService.userLog("Moved message id is now: " + mNewServerId);
     91             } else {
     92                 skipTag();
     93             }
     94         }
     95     }
     96 
     97     @Override
     98     public boolean parse() throws IOException {
     99         boolean res = false;
    100         if (nextTag(START_DOCUMENT) != Tags.MOVE_MOVE_ITEMS) {
    101             throw new IOException();
    102         }
    103         while (nextTag(START_DOCUMENT) != END_DOCUMENT) {
    104             if (tag == Tags.MOVE_RESPONSE) {
    105                 parseResponse();
    106             } else {
    107                 skipTag();
    108             }
    109         }
    110         return res;
    111     }
    112 }
    113 
    114