/* * Copyright (C) 2016 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 com.google.common.base.Objects; import java.util.Comparator; /** * Orders accounts for display such that the default account is first */ public class AccountComparator implements Comparator { private AccountWithDataSet mDefaultAccount; public AccountComparator(AccountWithDataSet defaultAccount) { mDefaultAccount = defaultAccount; } @Override public int compare(AccountWithDataSet a, AccountWithDataSet b) { if (Objects.equal(a.name, b.name) && Objects.equal(a.type, b.type) && Objects.equal(a.dataSet, b.dataSet)) { return 0; } else if (b.name == null || b.type == null) { return -1; } else if (a.name == null || a.type == null) { return 1; } else if (isWritableGoogleAccount(a) && a.equals(mDefaultAccount)) { return -1; } else if (isWritableGoogleAccount(b) && b.equals(mDefaultAccount)) { return 1; } else if (isWritableGoogleAccount(a) && !isWritableGoogleAccount(b)) { return -1; } else if (isWritableGoogleAccount(b) && !isWritableGoogleAccount(a)) { return 1; } else { int diff = a.name.compareToIgnoreCase(b.name); if (diff != 0) { return diff; } diff = a.type.compareToIgnoreCase(b.type); if (diff != 0) { return diff; } // Accounts without data sets get sorted before those that have them. if (a.dataSet != null) { return b.dataSet == null ? 1 : a.dataSet.compareToIgnoreCase(b.dataSet); } else { return -1; } } } private static boolean isWritableGoogleAccount(AccountWithDataSet account) { return GoogleAccountType.ACCOUNT_TYPE.equals(account.type) && account.dataSet == null; } }