437 lines
17 KiB
Java
437 lines
17 KiB
Java
/*
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* Copyright (C) 2008-2009 Marc Blank
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* Licensed to The Android Open Source Project.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.exchange.adapter;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.ArrayList;
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import java.util.GregorianCalendar;
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import java.util.TimeZone;
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import android.content.ContentProviderOperation;
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import android.content.ContentResolver;
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import android.content.ContentUris;
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import android.content.ContentValues;
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import android.content.OperationApplicationException;
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import android.database.Cursor;
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import android.os.RemoteException;
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import com.android.email.provider.EmailProvider;
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import com.android.exchange.EasSyncService;
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import com.android.exchange.EmailContent.Attachment;
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import com.android.exchange.EmailContent.Mailbox;
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import com.android.exchange.EmailContent.Message;
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import com.android.exchange.EmailContent.MessageColumns;
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import com.android.exchange.EmailContent.SyncColumns;
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/**
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* Sync adapter for EAS email
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*
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*/
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public class EasEmailSyncAdapter extends EasSyncAdapter {
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private static final String[] UPDATES_PROJECTION = {MessageColumns.FLAG_READ};
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ArrayList<Long> mDeletedIdList = new ArrayList<Long>();
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ArrayList<Long> mUpdatedIdList = new ArrayList<Long>();
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public EasEmailSyncAdapter(Mailbox mailbox) {
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super(mailbox);
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}
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@Override
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public boolean parse(ByteArrayInputStream is, EasSyncService service) throws IOException {
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EasEmailSyncParser p = new EasEmailSyncParser(is, service);
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return p.parse();
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}
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class EasEmailSyncParser extends EasContentParser {
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private static final String WHERE_SERVER_ID_AND_MAILBOX_KEY =
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SyncColumns.SERVER_ID + "=? and " + MessageColumns.MAILBOX_KEY + "=?";
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private String mMailboxIdAsString;
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String[] bindArguments = new String[2];
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public EasEmailSyncParser(InputStream in, EasSyncService service) throws IOException {
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super(in, service);
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mMailboxIdAsString = Long.toString(mMailbox.mId);
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//setDebug(true); // DON'T CHECK IN WITH THIS
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}
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public void wipe() {
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mContentResolver.delete(Message.CONTENT_URI,
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Message.MAILBOX_KEY + "=" + mMailbox.mId, null);
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mContentResolver.delete(Message.DELETED_CONTENT_URI,
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Message.MAILBOX_KEY + "=" + mMailbox.mId, null);
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mContentResolver.delete(Message.UPDATED_CONTENT_URI,
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Message.MAILBOX_KEY + "=" + mMailbox.mId, null);
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}
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public void addData (Message msg) throws IOException {
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String to = "";
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String from = "";
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String cc = "";
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String replyTo = "";
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int size = 0;
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ArrayList<Attachment> atts = new ArrayList<Attachment>();
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while (nextTag(EasTags.SYNC_APPLICATION_DATA) != END) {
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switch (tag) {
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case EasTags.EMAIL_ATTACHMENTS:
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break;
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case EasTags.EMAIL_ATTACHMENT:
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attachmentParser(atts, msg);
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break;
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case EasTags.EMAIL_TO:
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to = getValue();
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break;
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case EasTags.EMAIL_FROM:
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from = getValue();
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String sender = from;
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int q = from.indexOf('\"');
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if (q >= 0) {
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int qq = from.indexOf('\"', q + 1);
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if (qq > 0) {
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sender = from.substring(q + 1, qq);
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}
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}
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msg.mDisplayName = sender;
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break;
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case EasTags.EMAIL_CC:
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cc = getValue();
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break;
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case EasTags.EMAIL_REPLY_TO:
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replyTo = getValue();
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break;
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case EasTags.EMAIL_DATE_RECEIVED:
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String date = getValue();
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// 2009-02-11T18:03:03.627Z
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GregorianCalendar cal = new GregorianCalendar();
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cal.set(Integer.parseInt(date.substring(0, 4)), Integer.parseInt(date
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.substring(5, 7)) - 1, Integer.parseInt(date.substring(8, 10)),
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Integer.parseInt(date.substring(11, 13)), Integer.parseInt(date
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.substring(14, 16)), Integer.parseInt(date
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.substring(17, 19)));
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cal.setTimeZone(TimeZone.getTimeZone("GMT"));
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msg.mTimeStamp = cal.getTimeInMillis();
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break;
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case EasTags.EMAIL_SUBJECT:
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msg.mSubject = getValue();
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break;
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case EasTags.EMAIL_READ:
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msg.mFlagRead = getValueInt() == 1;
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break;
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case EasTags.EMAIL_BODY:
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msg.mTextInfo = "X;X;8;" + size; // location;encoding;charset;size
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msg.mText = getValue();
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// For now...
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msg.mPreview = "Fake preview"; // Messages.previewFromText(body);
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break;
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default:
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skipTag();
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}
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}
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msg.mTo = to;
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msg.mFrom = from;
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msg.mCc = cc;
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msg.mReplyTo = replyTo;
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if (atts.size() > 0) {
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msg.mAttachments = atts;
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}
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}
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public void addParser(ArrayList<Message> emails) throws IOException {
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Message msg = new Message();
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msg.mAccountKey = mAccount.mId;
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msg.mMailboxKey = mMailbox.mId;
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msg.mFlagLoaded = Message.LOADED;
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while (nextTag(EasTags.SYNC_ADD) != END) {
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switch (tag) {
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case EasTags.SYNC_SERVER_ID:
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msg.mServerId = getValue();
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break;
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case EasTags.SYNC_APPLICATION_DATA:
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addData(msg);
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break;
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default:
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skipTag();
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}
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}
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// Tell the provider that this is synced back
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msg.mServerVersion = mMailbox.mSyncKey;
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emails.add(msg);
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}
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public void attachmentParser(ArrayList<Attachment> atts, Message msg) throws IOException {
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String fileName = null;
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String length = null;
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String lvl = null;
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while (nextTag(EasTags.EMAIL_ATTACHMENT) != END) {
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switch (tag) {
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case EasTags.EMAIL_DISPLAY_NAME:
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fileName = getValue();
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break;
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case EasTags.EMAIL_ATT_NAME:
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lvl = getValue();
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break;
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case EasTags.EMAIL_ATT_SIZE:
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length = getValue();
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break;
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default:
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skipTag();
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}
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}
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if (fileName != null && length != null && lvl != null) {
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Attachment att = new Attachment();
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att.mEncoding = "base64";
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att.mSize = Long.parseLong(length);
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att.mFileName = fileName;
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atts.add(att);
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msg.mFlagAttachment = true;
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}
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}
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private Cursor getServerIdCursor(String serverId, String[] projection) {
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bindArguments[0] = serverId;
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bindArguments[1] = mMailboxIdAsString;
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return mContentResolver.query(Message.CONTENT_URI, projection,
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WHERE_SERVER_ID_AND_MAILBOX_KEY, bindArguments, null);
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}
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public void deleteParser(ArrayList<Long> deletes) throws IOException {
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while (nextTag(EasTags.SYNC_DELETE) != END) {
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switch (tag) {
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case EasTags.SYNC_SERVER_ID:
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String serverId = getValue();
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// Find the message in this mailbox with the given serverId
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Cursor c = getServerIdCursor(serverId, Message.ID_COLUMN_PROJECTION);
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try {
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if (c.moveToFirst()) {
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mService.userLog("Deleting " + serverId);
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deletes.add(c.getLong(Message.ID_COLUMNS_ID_COLUMN));
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}
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} finally {
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c.close();
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}
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break;
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default:
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skipTag();
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}
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}
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}
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class ServerChange {
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long id;
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boolean read;
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ServerChange(long _id, boolean _read) {
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id = _id;
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read = _read;
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}
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}
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public void changeParser(ArrayList<ServerChange> changes) throws IOException {
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String serverId = null;
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boolean oldRead = false;
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boolean read = true;
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long id = 0;
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while (nextTag(EasTags.SYNC_CHANGE) != END) {
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switch (tag) {
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case EasTags.SYNC_SERVER_ID:
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serverId = getValue();
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Cursor c = getServerIdCursor(serverId, Message.LIST_PROJECTION);
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try {
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if (c.moveToFirst()) {
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mService.userLog("Changing " + serverId);
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oldRead = c.getInt(Message.LIST_READ_COLUMN) == Message.READ;
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id = c.getLong(Message.LIST_ID_COLUMN);
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}
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} finally {
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c.close();
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}
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break;
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case EasTags.EMAIL_READ:
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read = getValueInt() == 1;
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break;
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case EasTags.SYNC_APPLICATION_DATA:
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break;
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default:
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skipTag();
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}
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}
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if (oldRead != read) {
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changes.add(new ServerChange(id, read));
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}
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}
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public void commandsParser() throws IOException {
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ArrayList<Message> newEmails = new ArrayList<Message>();
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ArrayList<Long> deletedEmails = new ArrayList<Long>();
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ArrayList<ServerChange> changedEmails = new ArrayList<ServerChange>();
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while (nextTag(EasTags.SYNC_COMMANDS) != END) {
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if (tag == EasTags.SYNC_ADD) {
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addParser(newEmails);
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} else if (tag == EasTags.SYNC_DELETE) {
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deleteParser(deletedEmails);
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} else if (tag == EasTags.SYNC_CHANGE) {
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changeParser(changedEmails);
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} else
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skipTag();
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}
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// Use a batch operation to handle the changes
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// TODO New mail notifications? Who looks for these?
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ArrayList<ContentProviderOperation> ops = new ArrayList<ContentProviderOperation>();
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for (Message content : newEmails) {
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content.addSaveOps(ops);
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}
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for (Long id : deletedEmails) {
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ops.add(ContentProviderOperation.newDelete(
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ContentUris.withAppendedId(Message.CONTENT_URI, id)).build());
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}
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if (!changedEmails.isEmpty()) {
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// Server wins in a conflict...
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for (ServerChange change : changedEmails) {
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// For now, don't handle read->unread
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ContentValues cv = new ContentValues();
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cv.put(MessageColumns.FLAG_READ, change.read);
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ops.add(ContentProviderOperation.newUpdate(
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ContentUris.withAppendedId(Message.CONTENT_URI, change.id))
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.withValues(cv)
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.build());
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}
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}
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ops.add(ContentProviderOperation.newUpdate(
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ContentUris.withAppendedId(Mailbox.CONTENT_URI, mMailbox.mId)).withValues(
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mMailbox.toContentValues()).build());
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// If we've sent local deletions, clear out the deleted table
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for (Long id: mDeletedIdList) {
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ops.add(ContentProviderOperation.newDelete(
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ContentUris.withAppendedId(Message.DELETED_CONTENT_URI, id)).build());
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}
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try {
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mService.mContext.getContentResolver()
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.applyBatch(EmailProvider.EMAIL_AUTHORITY, ops);
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} catch (RemoteException e) {
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// There is nothing to be done here; fail by returning null
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} catch (OperationApplicationException e) {
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// There is nothing to be done here; fail by returning null
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}
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mService.userLog("SyncKey confirmed as: " + mMailbox.mSyncKey);
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}
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}
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@Override
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public String getCollectionName() {
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return "Email";
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}
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@Override
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public boolean sendLocalChanges(EasSerializer s, EasSyncService service) throws IOException {
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ContentResolver cr = service.mContext.getContentResolver();
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// Find any of our deleted items
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Cursor c = cr.query(Message.DELETED_CONTENT_URI, Message.LIST_PROJECTION,
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MessageColumns.MAILBOX_KEY + '=' + mMailbox.mId, null, null);
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boolean first = true;
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// We keep track of the list of deleted item id's so that we can remove them from the
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// deleted table after the server receives our command
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mDeletedIdList.clear();
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try {
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while (c.moveToNext()) {
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if (first) {
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s.start("Commands");
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first = false;
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}
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// Send the command to delete this message
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s.start("Delete")
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.data("ServerId", c.getString(Message.LIST_SERVER_ID_COLUMN))
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.end("Delete");
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mDeletedIdList.add(c.getLong(Message.LIST_ID_COLUMN));
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}
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} finally {
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c.close();
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}
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// Do the same now for updated items
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c = cr.query(Message.UPDATED_CONTENT_URI, Message.LIST_PROJECTION,
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MessageColumns.MAILBOX_KEY + '=' + mMailbox.mId, null, null);
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// We keep track of the list of updated item id's so that we can remove them from the
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// deleted table after the server receives our command
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mUpdatedIdList.clear();
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try {
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while (c.moveToNext()) {
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long id = c.getLong(Message.LIST_ID_COLUMN);
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// Say we've handled this update
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mUpdatedIdList.add(id);
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// We have the id of the changed item. But first, we have to find out its current
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// state, since the updated table saves the opriginal state
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Cursor currentCursor = cr.query(ContentUris.withAppendedId(Message.CONTENT_URI, id),
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UPDATES_PROJECTION, null, null, null);
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try {
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// If this item no longer exists (shouldn't be possible), just move along
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if (!currentCursor.moveToFirst()) {
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continue;
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}
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int read = currentCursor.getInt(0);
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if (read == c.getInt(Message.LIST_READ_COLUMN)) {
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// The read state hasn't really changed, so move on...
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continue;
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}
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if (first) {
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s.start("Commands");
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first = false;
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}
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// Send the change to "read". We'll do "flagged" here eventually as well
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// TODO Add support for flags here (EAS 12.0 and above)
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s.start("Change")
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.data("ServerId", c.getString(Message.LIST_SERVER_ID_COLUMN))
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.start("ApplicationData")
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.data("Read", Integer.toString(read))
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.end("ApplicationData")
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.end("Change");
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} finally {
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currentCursor.close();
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}
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}
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} finally {
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c.close();
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}
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if (!first) {
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s.end("Commands");
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}
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return false;
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}
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}
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