| /* |
| * Copyright (C) 2011 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.contacts.model.account; |
| |
| import android.content.Context; |
| import android.database.Cursor; |
| import android.net.Uri; |
| import android.provider.BaseColumns; |
| import android.provider.ContactsContract; |
| import android.provider.ContactsContract.RawContacts; |
| import android.text.TextUtils; |
| |
| import com.google.common.base.Objects; |
| |
| |
| /** |
| * Encapsulates an "account type" string and a "data set" string. |
| */ |
| public class AccountTypeWithDataSet { |
| |
| private static final String[] ID_PROJECTION = new String[] {BaseColumns._ID}; |
| private static final Uri RAW_CONTACTS_URI_LIMIT_1 = RawContacts.CONTENT_URI.buildUpon() |
| .appendQueryParameter(ContactsContract.LIMIT_PARAM_KEY, "1").build(); |
| |
| /** account type. Can be null for fallback type. */ |
| public final String accountType; |
| |
| /** dataSet may be null, but never be "". */ |
| public final String dataSet; |
| |
| private AccountTypeWithDataSet(String accountType, String dataSet) { |
| this.accountType = TextUtils.isEmpty(accountType) ? null : accountType; |
| this.dataSet = TextUtils.isEmpty(dataSet) ? null : dataSet; |
| } |
| |
| public static AccountTypeWithDataSet get(String accountType, String dataSet) { |
| return new AccountTypeWithDataSet(accountType, dataSet); |
| } |
| |
| /** |
| * Return true if there are any contacts in the database with this account type and data set. |
| * Touches DB. Don't use in the UI thread. |
| */ |
| public boolean hasData(Context context) { |
| final String BASE_SELECTION = RawContacts.ACCOUNT_TYPE + " = ?"; |
| final String selection; |
| final String[] args; |
| if (TextUtils.isEmpty(dataSet)) { |
| selection = BASE_SELECTION + " AND " + RawContacts.DATA_SET + " IS NULL"; |
| args = new String[] {accountType}; |
| } else { |
| selection = BASE_SELECTION + " AND " + RawContacts.DATA_SET + " = ?"; |
| args = new String[] {accountType, dataSet}; |
| } |
| |
| final Cursor c = context.getContentResolver().query(RAW_CONTACTS_URI_LIMIT_1, |
| ID_PROJECTION, selection, args, null); |
| if (c == null) return false; |
| try { |
| return c.moveToFirst(); |
| } finally { |
| c.close(); |
| } |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (!(o instanceof AccountTypeWithDataSet)) return false; |
| |
| AccountTypeWithDataSet other = (AccountTypeWithDataSet) o; |
| return Objects.equal(accountType, other.accountType) |
| && Objects.equal(dataSet, other.dataSet); |
| } |
| |
| @Override |
| public int hashCode() { |
| return (accountType == null ? 0 : accountType.hashCode()) |
| ^ (dataSet == null ? 0 : dataSet.hashCode()); |
| } |
| |
| @Override |
| public String toString() { |
| return "[" + accountType + "/" + dataSet + "]"; |
| } |
| } |