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      1 /*
      2  * Copyright (C) 2017 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 
     17 package com.android.server.timezone;
     18 
     19 import android.annotation.IntDef;
     20 
     21 import java.lang.annotation.Retention;
     22 import java.lang.annotation.RetentionPolicy;
     23 
     24 /**
     25  * Information about the status of the time zone update / data packages that are persisted by the
     26  * Android system.
     27  */
     28 final class PackageStatus {
     29 
     30     @Retention(RetentionPolicy.SOURCE)
     31     @IntDef({ CHECK_STARTED, CHECK_COMPLETED_SUCCESS, CHECK_COMPLETED_FAILURE })
     32     @interface CheckStatus {}
     33 
     34     /** A time zone update check has been started but not yet completed. */
     35     static final int CHECK_STARTED = 1;
     36     /** A time zone update check has been completed and succeeded. */
     37     static final int CHECK_COMPLETED_SUCCESS = 2;
     38     /** A time zone update check has been completed and failed. */
     39     static final int CHECK_COMPLETED_FAILURE = 3;
     40 
     41     @CheckStatus
     42     final int mCheckStatus;
     43 
     44     // Non-null
     45     final PackageVersions mVersions;
     46 
     47     PackageStatus(@CheckStatus int checkStatus, PackageVersions versions) {
     48         this.mCheckStatus = checkStatus;
     49         if (checkStatus < 1 || checkStatus > 3) {
     50             throw new IllegalArgumentException("Unknown checkStatus " + checkStatus);
     51         }
     52         if (versions == null) {
     53             throw new NullPointerException("versions == null");
     54         }
     55         this.mVersions = versions;
     56     }
     57 
     58     @Override
     59     public boolean equals(Object o) {
     60         if (this == o) {
     61             return true;
     62         }
     63         if (o == null || getClass() != o.getClass()) {
     64             return false;
     65         }
     66 
     67         PackageStatus that = (PackageStatus) o;
     68 
     69         if (mCheckStatus != that.mCheckStatus) {
     70             return false;
     71         }
     72         return mVersions.equals(that.mVersions);
     73     }
     74 
     75     @Override
     76     public int hashCode() {
     77         int result = mCheckStatus;
     78         result = 31 * result + mVersions.hashCode();
     79         return result;
     80     }
     81 
     82     @Override
     83     public String toString() {
     84         return "PackageStatus{" +
     85                 "mCheckStatus=" + mCheckStatus +
     86                 ", mVersions=" + mVersions +
     87                 '}';
     88     }
     89 }
     90