1 /*
2  * Copyright (C) 2023 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.adservices.service.signals;
18 
19 import android.adservices.common.AdTechIdentifier;
20 
21 import java.util.List;
22 import java.util.Map;
23 
24 /** Provides signals for a given buyer. */
25 public interface SignalsProvider {
26     /**
27      * Retrieves signals for a given buyer.
28      *
29      * @param buyer The buyer to retrieve signals for.
30      * @return A map from base 64 encoded signal key strings to objects with the signals' value,
31      *     creation time, and creator's package name.
32      */
getSignals(AdTechIdentifier buyer)33     Map<String, List<ProtectedSignal>> getSignals(AdTechIdentifier buyer);
34 }
35