1 /* 2 * Copyright (C) 2016 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 package com.android.contacts.model.account; 17 18 import com.google.common.base.Objects; 19 20 import java.util.Comparator; 21 22 /** 23 * Orders accounts for display such that the default account is first 24 */ 25 public class AccountComparator implements Comparator<AccountWithDataSet> { 26 private AccountWithDataSet mDefaultAccount; 27 28 public AccountComparator(AccountWithDataSet defaultAccount) { 29 mDefaultAccount = defaultAccount; 30 } 31 32 @Override 33 public int compare(AccountWithDataSet a, AccountWithDataSet b) { 34 if (Objects.equal(a.name, b.name) && Objects.equal(a.type, b.type) 35 && Objects.equal(a.dataSet, b.dataSet)) { 36 return 0; 37 } else if (b.name == null || b.type == null) { 38 return -1; 39 } else if (a.name == null || a.type == null) { 40 return 1; 41 } else if (isWritableGoogleAccount(a) && a.equals(mDefaultAccount)) { 42 return -1; 43 } else if (isWritableGoogleAccount(b) && b.equals(mDefaultAccount)) { 44 return 1; 45 } else if (isWritableGoogleAccount(a) && !isWritableGoogleAccount(b)) { 46 return -1; 47 } else if (isWritableGoogleAccount(b) && !isWritableGoogleAccount(a)) { 48 return 1; 49 } else { 50 int diff = a.name.compareToIgnoreCase(b.name); 51 if (diff != 0) { 52 return diff; 53 } 54 diff = a.type.compareToIgnoreCase(b.type); 55 if (diff != 0) { 56 return diff; 57 } 58 59 // Accounts without data sets get sorted before those that have them. 60 if (a.dataSet != null) { 61 return b.dataSet == null ? 1 : a.dataSet.compareToIgnoreCase(b.dataSet); 62 } else { 63 return -1; 64 } 65 } 66 } 67 68 private static boolean isWritableGoogleAccount(AccountWithDataSet account) { 69 return GoogleAccountType.ACCOUNT_TYPE.equals(account.type) && account.dataSet == null; 70 } 71 } 72
