Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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 | |
Tyler Gunn | 7cc70b4 | 2014-09-12 22:17:27 -0700 | [diff] [blame] | 17 | package com.android.server.telecom; |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 18 | |
Santos Cordon | 4bc0245 | 2014-11-19 15:51:12 -0800 | [diff] [blame] | 19 | import android.util.ArrayMap; |
| 20 | |
| 21 | import java.util.Map; |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 22 | |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 23 | /** Utility to map {@link Call} objects to unique IDs. IDs are generated when a call is added. */ |
| 24 | class CallIdMapper { |
Santos Cordon | 4bc0245 | 2014-11-19 15:51:12 -0800 | [diff] [blame] | 25 | /** |
| 26 | * A very basic bidirectional map. |
| 27 | */ |
| 28 | static class BiMap<K, V> { |
| 29 | private Map<K, V> mPrimaryMap = new ArrayMap<>(); |
| 30 | private Map<V, K> mSecondaryMap = new ArrayMap<>(); |
| 31 | |
| 32 | public boolean put(K key, V value) { |
| 33 | if (key == null || value == null || mPrimaryMap.containsKey(key) || |
| 34 | mSecondaryMap.containsKey(value)) { |
| 35 | return false; |
| 36 | } |
| 37 | |
| 38 | mPrimaryMap.put(key, value); |
| 39 | mSecondaryMap.put(value, key); |
| 40 | return true; |
| 41 | } |
| 42 | |
| 43 | public boolean remove(K key) { |
| 44 | if (key == null) { |
| 45 | return false; |
| 46 | } |
| 47 | if (mPrimaryMap.containsKey(key)) { |
| 48 | V value = getValue(key); |
| 49 | mPrimaryMap.remove(key); |
| 50 | mSecondaryMap.remove(value); |
| 51 | return true; |
| 52 | } |
| 53 | return false; |
| 54 | } |
| 55 | |
| 56 | public boolean removeValue(V value) { |
| 57 | if (value == null) { |
| 58 | return false; |
| 59 | } |
| 60 | return remove(getKey(value)); |
| 61 | } |
| 62 | |
| 63 | public V getValue(K key) { |
| 64 | return mPrimaryMap.get(key); |
| 65 | } |
| 66 | |
| 67 | public K getKey(V value) { |
| 68 | return mSecondaryMap.get(value); |
| 69 | } |
| 70 | |
| 71 | public void clear() { |
| 72 | mPrimaryMap.clear(); |
| 73 | mSecondaryMap.clear(); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | private final BiMap<String, Call> mCalls = new BiMap<>(); |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 78 | private final String mCallIdPrefix; |
Sailesh Nepal | e2ea653 | 2014-04-01 19:45:45 -0700 | [diff] [blame] | 79 | private static int sIdCount; |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 80 | |
| 81 | CallIdMapper(String callIdPrefix) { |
| 82 | ThreadUtil.checkOnMainThread(); |
| 83 | mCallIdPrefix = callIdPrefix + "@"; |
| 84 | } |
| 85 | |
Sailesh Nepal | 0e5410a | 2014-04-04 01:20:58 -0700 | [diff] [blame] | 86 | void replaceCall(Call newCall, Call callToReplace) { |
| 87 | ThreadUtil.checkOnMainThread(); |
| 88 | |
| 89 | // Use the old call's ID for the new call. |
| 90 | String callId = getCallId(callToReplace); |
| 91 | mCalls.put(callId, newCall); |
| 92 | } |
| 93 | |
Santos Cordon | a161070 | 2014-06-04 20:22:56 -0700 | [diff] [blame] | 94 | void addCall(Call call, String id) { |
Jay Shrauner | 969755a | 2014-08-11 20:34:43 -0700 | [diff] [blame] | 95 | if (call == null) { |
| 96 | return; |
| 97 | } |
Santos Cordon | a161070 | 2014-06-04 20:22:56 -0700 | [diff] [blame] | 98 | ThreadUtil.checkOnMainThread(); |
| 99 | mCalls.put(id, call); |
| 100 | } |
| 101 | |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 102 | void addCall(Call call) { |
| 103 | ThreadUtil.checkOnMainThread(); |
Santos Cordon | a161070 | 2014-06-04 20:22:56 -0700 | [diff] [blame] | 104 | addCall(call, getNewId()); |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | void removeCall(Call call) { |
Jay Shrauner | 969755a | 2014-08-11 20:34:43 -0700 | [diff] [blame] | 108 | if (call == null) { |
| 109 | return; |
| 110 | } |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 111 | ThreadUtil.checkOnMainThread(); |
Santos Cordon | 4bc0245 | 2014-11-19 15:51:12 -0800 | [diff] [blame] | 112 | mCalls.removeValue(call); |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 113 | } |
| 114 | |
Santos Cordon | 682fe6b | 2014-05-20 08:56:39 -0700 | [diff] [blame] | 115 | void removeCall(String callId) { |
| 116 | ThreadUtil.checkOnMainThread(); |
| 117 | mCalls.remove(callId); |
| 118 | } |
| 119 | |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 120 | String getCallId(Call call) { |
Jay Shrauner | 969755a | 2014-08-11 20:34:43 -0700 | [diff] [blame] | 121 | if (call == null) { |
| 122 | return null; |
| 123 | } |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 124 | ThreadUtil.checkOnMainThread(); |
Santos Cordon | 4bc0245 | 2014-11-19 15:51:12 -0800 | [diff] [blame] | 125 | return mCalls.getKey(call); |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 126 | } |
| 127 | |
| 128 | Call getCall(Object objId) { |
| 129 | ThreadUtil.checkOnMainThread(); |
| 130 | |
| 131 | String callId = null; |
| 132 | if (objId instanceof String) { |
| 133 | callId = (String) objId; |
| 134 | } |
Santos Cordon | 0fbe632 | 2014-08-14 04:04:25 -0700 | [diff] [blame] | 135 | if (!isValidCallId(callId) && !isValidConferenceId(callId)) { |
Jay Shrauner | 969755a | 2014-08-11 20:34:43 -0700 | [diff] [blame] | 136 | return null; |
| 137 | } |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 138 | |
Santos Cordon | 4bc0245 | 2014-11-19 15:51:12 -0800 | [diff] [blame] | 139 | return mCalls.getValue(callId); |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 140 | } |
| 141 | |
Santos Cordon | 682fe6b | 2014-05-20 08:56:39 -0700 | [diff] [blame] | 142 | void clear() { |
| 143 | mCalls.clear(); |
| 144 | } |
| 145 | |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 146 | boolean isValidCallId(String callId) { |
| 147 | // Note, no need for thread check, this method is thread safe. |
| 148 | return callId != null && callId.startsWith(mCallIdPrefix); |
| 149 | } |
Santos Cordon | a161070 | 2014-06-04 20:22:56 -0700 | [diff] [blame] | 150 | |
Santos Cordon | 0fbe632 | 2014-08-14 04:04:25 -0700 | [diff] [blame] | 151 | boolean isValidConferenceId(String callId) { |
| 152 | return callId != null; |
| 153 | } |
| 154 | |
Santos Cordon | a161070 | 2014-06-04 20:22:56 -0700 | [diff] [blame] | 155 | String getNewId() { |
| 156 | sIdCount++; |
| 157 | return mCallIdPrefix + sIdCount; |
| 158 | } |
Sailesh Nepal | e59bb19 | 2014-04-01 18:33:59 -0700 | [diff] [blame] | 159 | } |