1 /* 2 * Copyright (C) 2006 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.internal.telephony.dataconnection; 18 19 import android.app.PendingIntent; 20 import android.content.Context; 21 import android.telephony.Rlog; 22 23 import com.android.internal.R; 24 import com.android.internal.telephony.DctConstants; 25 import com.android.internal.telephony.Phone; 26 27 import java.io.FileDescriptor; 28 import java.io.PrintWriter; 29 import java.util.ArrayList; 30 import java.util.concurrent.atomic.AtomicBoolean; 31 import java.util.concurrent.atomic.AtomicInteger; 32 33 /** 34 * Maintain the Apn context 35 */ 36 public class ApnContext { 37 38 public final String LOG_TAG; 39 40 protected static final boolean DBG = false; 41 42 private final Context mContext; 43 44 private final String mApnType; 45 46 private DctConstants.State mState; 47 48 private ArrayList<ApnSetting> mWaitingApns = null; 49 50 /** A zero indicates that all waiting APNs had a permanent error */ 51 private AtomicInteger mWaitingApnsPermanentFailureCountDown; 52 53 private ApnSetting mApnSetting; 54 55 DcAsyncChannel mDcAc; 56 57 String mReason; 58 59 PendingIntent mReconnectAlarmIntent; 60 61 /** 62 * user/app requested connection on this APN 63 */ 64 AtomicBoolean mDataEnabled; 65 66 /** 67 * carrier requirements met 68 */ 69 AtomicBoolean mDependencyMet; 70 71 public ApnContext(Context context, String apnType, String logTag) { 72 mContext = context; 73 mApnType = apnType; 74 mState = DctConstants.State.IDLE; 75 setReason(Phone.REASON_DATA_ENABLED); 76 mDataEnabled = new AtomicBoolean(false); 77 mDependencyMet = new AtomicBoolean(true); 78 mWaitingApnsPermanentFailureCountDown = new AtomicInteger(0); 79 LOG_TAG = logTag; 80 } 81 82 public String getApnType() { 83 return mApnType; 84 } 85 86 public synchronized DcAsyncChannel getDcAc() { 87 return mDcAc; 88 } 89 90 public synchronized void setDataConnectionAc(DcAsyncChannel dcac) { 91 if (DBG) { 92 log("setDataConnectionAc: old dcac=" + mDcAc + " new dcac=" + dcac 93 + " this=" + this); 94 } 95 mDcAc = dcac; 96 } 97 98 public synchronized PendingIntent getReconnectIntent() { 99 return mReconnectAlarmIntent; 100 } 101 102 public synchronized void setReconnectIntent(PendingIntent intent) { 103 mReconnectAlarmIntent = intent; 104 } 105 106 public synchronized ApnSetting getApnSetting() { 107 log("getApnSetting: apnSetting=" + mApnSetting); 108 return mApnSetting; 109 } 110 111 public synchronized void setApnSetting(ApnSetting apnSetting) { 112 log("setApnSetting: apnSetting=" + apnSetting); 113 mApnSetting = apnSetting; 114 } 115 116 public synchronized void setWaitingApns(ArrayList<ApnSetting> waitingApns) { 117 mWaitingApns = waitingApns; 118 mWaitingApnsPermanentFailureCountDown.set(mWaitingApns.size()); 119 } 120 121 public int getWaitingApnsPermFailCount() { 122 return mWaitingApnsPermanentFailureCountDown.get(); 123 } 124 125 public void decWaitingApnsPermFailCount() { 126 mWaitingApnsPermanentFailureCountDown.decrementAndGet(); 127 } 128 129 public synchronized ApnSetting getNextWaitingApn() { 130 ArrayList<ApnSetting> list = mWaitingApns; 131 ApnSetting apn = null; 132 133 if (list != null) { 134 if (!list.isEmpty()) { 135 apn = list.get(0); 136 } 137 } 138 return apn; 139 } 140 141 public synchronized void removeWaitingApn(ApnSetting apn) { 142 if (mWaitingApns != null) { 143 mWaitingApns.remove(apn); 144 } 145 } 146 147 public synchronized ArrayList<ApnSetting> getWaitingApns() { 148 return mWaitingApns; 149 } 150 151 public synchronized void setState(DctConstants.State s) { 152 if (DBG) { 153 log("setState: " + s + ", previous state:" + mState); 154 } 155 156 mState = s; 157 158 if (mState == DctConstants.State.FAILED) { 159 if (mWaitingApns != null) { 160 mWaitingApns.clear(); // when teardown the connection and set to IDLE 161 } 162 } 163 } 164 165 public synchronized DctConstants.State getState() { 166 return mState; 167 } 168 169 public boolean isDisconnected() { 170 DctConstants.State currentState = getState(); 171 return ((currentState == DctConstants.State.IDLE) || 172 currentState == DctConstants.State.FAILED); 173 } 174 175 public synchronized void setReason(String reason) { 176 if (DBG) { 177 log("set reason as " + reason + ",current state " + mState); 178 } 179 mReason = reason; 180 } 181 182 public synchronized String getReason() { 183 return mReason; 184 } 185 186 public boolean isReady() { 187 return mDataEnabled.get() && mDependencyMet.get(); 188 } 189 190 public boolean isConnectable() { 191 return isReady() && ((mState == DctConstants.State.IDLE) 192 || (mState == DctConstants.State.SCANNING) 193 || (mState == DctConstants.State.RETRYING) 194 || (mState == DctConstants.State.FAILED)); 195 } 196 197 public boolean isConnectedOrConnecting() { 198 return isReady() && ((mState == DctConstants.State.CONNECTED) 199 || (mState == DctConstants.State.CONNECTING) 200 || (mState == DctConstants.State.SCANNING) 201 || (mState == DctConstants.State.RETRYING)); 202 } 203 204 public void setEnabled(boolean enabled) { 205 if (DBG) { 206 log("set enabled as " + enabled + ", current state is " + mDataEnabled.get()); 207 } 208 mDataEnabled.set(enabled); 209 } 210 211 public boolean isEnabled() { 212 return mDataEnabled.get(); 213 } 214 215 public void setDependencyMet(boolean met) { 216 if (DBG) { 217 log("set mDependencyMet as " + met + " current state is " + mDependencyMet.get()); 218 } 219 mDependencyMet.set(met); 220 } 221 222 public boolean getDependencyMet() { 223 return mDependencyMet.get(); 224 } 225 226 public boolean isProvisioningApn() { 227 String provisioningApn = mContext.getResources() 228 .getString(R.string.mobile_provisioning_apn); 229 if ((mApnSetting != null) && (mApnSetting.apn != null)) { 230 return (mApnSetting.apn.equals(provisioningApn)); 231 } else { 232 return false; 233 } 234 } 235 236 @Override 237 public synchronized String toString() { 238 // We don't print mDataConnection because its recursive. 239 return "{mApnType=" + mApnType + " mState=" + getState() + " mWaitingApns={" + mWaitingApns + 240 "} mWaitingApnsPermanentFailureCountDown=" + mWaitingApnsPermanentFailureCountDown + 241 " mApnSetting={" + mApnSetting + "} mReason=" + mReason + 242 " mDataEnabled=" + mDataEnabled + " mDependencyMet=" + mDependencyMet + "}"; 243 } 244 245 protected void log(String s) { 246 Rlog.d(LOG_TAG, "[ApnContext:" + mApnType + "] " + s); 247 } 248 249 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 250 pw.println("ApnContext: " + this.toString()); 251 } 252 } 253