1 /* 2 * Copyright (C) 2015 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.messaging.datamodel.data; 18 19 import android.database.Cursor; 20 import androidx.collection.SimpleArrayMap; 21 22 import com.android.messaging.util.Assert; 23 24 import com.google.common.annotations.VisibleForTesting; 25 26 import java.util.ArrayList; 27 import java.util.Iterator; 28 import java.util.NoSuchElementException; 29 30 /** 31 * A class that contains the list of all participants potentially involved in a conversation. 32 * Includes both the participant records for each participant referenced in conversation 33 * participants table (i.e. "other" phone numbers) plus all participants representing self 34 * (i.e. one per sim recorded in the subscription manager db). 35 */ 36 public class ConversationParticipantsData implements Iterable<ParticipantData> { 37 // A map from a participant id to a participant 38 private final SimpleArrayMap<String, ParticipantData> mConversationParticipantsMap; 39 private int mParticipantCountExcludingSelf = 0; 40 ConversationParticipantsData()41 public ConversationParticipantsData() { 42 mConversationParticipantsMap = new SimpleArrayMap<String, ParticipantData>(); 43 } 44 bind(final Cursor cursor)45 public void bind(final Cursor cursor) { 46 mConversationParticipantsMap.clear(); 47 mParticipantCountExcludingSelf = 0; 48 if (cursor != null) { 49 while (cursor.moveToNext()) { 50 final ParticipantData newParticipant = ParticipantData.getFromCursor(cursor); 51 if (!newParticipant.isSelf()) { 52 mParticipantCountExcludingSelf++; 53 } 54 mConversationParticipantsMap.put(newParticipant.getId(), newParticipant); 55 } 56 } 57 } 58 59 @VisibleForTesting getParticipantById(final String participantId)60 ParticipantData getParticipantById(final String participantId) { 61 return mConversationParticipantsMap.get(participantId); 62 } 63 getParticipantListExcludingSelf()64 ArrayList<ParticipantData> getParticipantListExcludingSelf() { 65 final ArrayList<ParticipantData> retList = 66 new ArrayList<ParticipantData>(mConversationParticipantsMap.size()); 67 for (int i = 0; i < mConversationParticipantsMap.size(); i++) { 68 final ParticipantData participant = mConversationParticipantsMap.valueAt(i); 69 if (!participant.isSelf()) { 70 retList.add(participant); 71 } 72 } 73 return retList; 74 } 75 76 /** 77 * For a 1:1 conversation return the other (not self) participant 78 */ getOtherParticipant()79 public ParticipantData getOtherParticipant() { 80 if (mParticipantCountExcludingSelf == 1) { 81 for (int i = 0; i < mConversationParticipantsMap.size(); i++) { 82 final ParticipantData participant = mConversationParticipantsMap.valueAt(i); 83 if (!participant.isSelf()) { 84 return participant; 85 } 86 } 87 Assert.fail("Could not find other participant"); 88 } 89 return null; 90 } 91 getNumberOfParticipantsExcludingSelf()92 public int getNumberOfParticipantsExcludingSelf() { 93 return mParticipantCountExcludingSelf; 94 } 95 isLoaded()96 public boolean isLoaded() { 97 return !mConversationParticipantsMap.isEmpty(); 98 } 99 100 @Override iterator()101 public Iterator<ParticipantData> iterator() { 102 return new Iterator<ParticipantData>() { 103 private int mCurrentIndex = -1; 104 105 @Override 106 public boolean hasNext() { 107 return mCurrentIndex < mConversationParticipantsMap.size() - 1; 108 } 109 110 @Override 111 public ParticipantData next() { 112 mCurrentIndex++; 113 if (mCurrentIndex >= mConversationParticipantsMap.size()) { 114 throw new NoSuchElementException(); 115 } 116 return mConversationParticipantsMap.valueAt(mCurrentIndex); 117 } 118 119 @Override 120 public void remove() { 121 throw new UnsupportedOperationException(); 122 } 123 }; 124 } 125 } 126