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.cobalt.data; 18 19 import com.google.cobalt.SystemProfile; 20 import com.google.cobalt.UnencryptedObservationBatch; 21 import com.google.common.collect.ImmutableList; 22 import com.google.common.collect.ImmutableListMultimap; 23 24 /** A generator of observations from the event data in the database. */ 25 public interface ObservationGenerator { 26 /** 27 * Generate the observations that occurred for a single day and report. 28 * 29 * @param dayIndex the day index to generate observations for 30 * @param eventData the data for events that occurred that are relevant to the day and Report 31 * @return the observations to store in the DB for later sending, contained in 32 * UnencryptedObservationBatches with their metadata 33 */ generateObservations( int dayIndex, ImmutableListMultimap<SystemProfile, EventRecordAndSystemProfile> eventData)34 ImmutableList<UnencryptedObservationBatch> generateObservations( 35 int dayIndex, 36 ImmutableListMultimap<SystemProfile, EventRecordAndSystemProfile> eventData); 37 } 38