/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.internal.telephony.cdma;
import com.android.internal.telephony.*;
import android.content.Context;
import android.os.AsyncResult;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.PowerManager;
import android.os.Registrant;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.util.Log;
import android.text.TextUtils;
import android.telephony.PhoneNumberUtils;
import android.telephony.ServiceState;
import com.android.internal.telephony.TelephonyProperties;
/**
* {@hide}
*/
public class CdmaConnection extends Connection {
static final String LOG_TAG = "CDMA";
//***** Instance Variables
CdmaCallTracker owner;
CdmaCall parent;
String address; // MAY BE NULL!!!
String dialString; // outgoing calls only
String postDialString; // outgoing calls only
boolean isIncoming;
boolean disconnected;
String cnapName;
int index; // index in CdmaCallTracker.connections[], -1 if unassigned
/*
* These time/timespan values are based on System.currentTimeMillis(),
* i.e., "wall clock" time.
*/
long createTime;
long connectTime;
long disconnectTime;
/*
* These time/timespan values are based on SystemClock.elapsedRealTime(),
* i.e., time since boot. They are appropriate for comparison and
* calculating deltas.
*/
long connectTimeReal;
long duration;
long holdingStartTime; // The time when the Connection last transitioned
// into HOLDING
int nextPostDialChar; // index into postDialString
DisconnectCause cause = DisconnectCause.NOT_DISCONNECTED;
PostDialState postDialState = PostDialState.NOT_STARTED;
int numberPresentation = Connection.PRESENTATION_ALLOWED;
int cnapNamePresentation = Connection.PRESENTATION_ALLOWED;
Handler h;
private PowerManager.WakeLock mPartialWakeLock;
//***** Event Constants
static final int EVENT_DTMF_DONE = 1;
static final int EVENT_PAUSE_DONE = 2;
static final int EVENT_NEXT_POST_DIAL = 3;
static final int EVENT_WAKE_LOCK_TIMEOUT = 4;
//***** Constants
static final int WAKE_LOCK_TIMEOUT_MILLIS = 60*1000;
static final int PAUSE_DELAY_MILLIS = 2 * 1000;
//***** Inner Classes
class MyHandler extends Handler {
MyHandler(Looper l) {super(l);}
public void
handleMessage(Message msg) {
switch (msg.what) {
case EVENT_NEXT_POST_DIAL:
case EVENT_DTMF_DONE:
case EVENT_PAUSE_DONE:
processNextPostDialChar();
break;
case EVENT_WAKE_LOCK_TIMEOUT:
releaseWakeLock();
break;
}
}
}
//***** Constructors
/** This is probably an MT call that we first saw in a CLCC response */
/*package*/
CdmaConnection (Context context, DriverCall dc, CdmaCallTracker ct, int index) {
createWakeLock(context);
acquireWakeLock();
owner = ct;
h = new MyHandler(owner.getLooper());
address = dc.number;
isIncoming = dc.isMT;
createTime = System.currentTimeMillis();
cnapName = dc.name;
cnapNamePresentation = dc.namePresentation;
numberPresentation = dc.numberPresentation;
this.index = index;
parent = parentFromDCState (dc.state);
parent.attach(this, dc);
}
/** This is an MO call/three way call, created when dialing */
/*package*/
CdmaConnection(Context context, String dialString, CdmaCallTracker ct, CdmaCall parent) {
createWakeLock(context);
acquireWakeLock();
owner = ct;
h = new MyHandler(owner.getLooper());
this.dialString = dialString;
Log.d(LOG_TAG, "[CDMAConn] CdmaConnection: dialString=" + dialString);
dialString = formatDialString(dialString);
Log.d(LOG_TAG, "[CDMAConn] CdmaConnection:formated dialString=" + dialString);
this.address = PhoneNumberUtils.extractNetworkPortionAlt(dialString);
this.postDialString = PhoneNumberUtils.extractPostDialPortion(dialString);
index = -1;
isIncoming = false;
cnapName = null;
cnapNamePresentation = Connection.PRESENTATION_ALLOWED;
numberPresentation = Connection.PRESENTATION_ALLOWED;
createTime = System.currentTimeMillis();
if (parent != null) {
this.parent = parent;
//for the three way call case, not change parent state
if (parent.state == CdmaCall.State.ACTIVE) {
parent.attachFake(this, CdmaCall.State.ACTIVE);
} else {
parent.attachFake(this, CdmaCall.State.DIALING);
}
}
}
/** This is a Call waiting call*/
CdmaConnection(Context context, CdmaCallWaitingNotification cw, CdmaCallTracker ct,
CdmaCall parent) {
createWakeLock(context);
acquireWakeLock();
owner = ct;
h = new MyHandler(owner.getLooper());
address = cw.number;
numberPresentation = cw.numberPresentation;
cnapName = cw.name;
cnapNamePresentation = cw.namePresentation;
index = -1;
isIncoming = true;
createTime = System.currentTimeMillis();
connectTime = 0;
this.parent = parent;
parent.attachFake(this, CdmaCall.State.WAITING);
}
public void dispose() {
}
static boolean
equalsHandlesNulls (Object a, Object b) {
return (a == null) ? (b == null) : a.equals (b);
}
/*package*/ boolean
compareTo(DriverCall c) {
// On mobile originated (MO) calls, the phone number may have changed
// due to a SIM Toolkit call control modification.
//
// We assume we know when MO calls are created (since we created them)
// and therefore don't need to compare the phone number anyway.
if (! (isIncoming || c.isMT)) return true;
// ... but we can compare phone numbers on MT calls, and we have
// no control over when they begin, so we might as well
String cAddress = PhoneNumberUtils.stringFromStringAndTOA(c.number, c.TOA);
return isIncoming == c.isMT && equalsHandlesNulls(address, cAddress);
}
public String getOrigDialString(){
return dialString;
}
public String getAddress() {
return address;
}
public String getCnapName() {
return cnapName;
}
public int getCnapNamePresentation() {
return cnapNamePresentation;
}
public CdmaCall getCall() {
return parent;
}
public long getCreateTime() {
return createTime;
}
public long getConnectTime() {
return connectTime;
}
public long getDisconnectTime() {
return disconnectTime;
}
public long getDurationMillis() {
if (connectTimeReal == 0) {
return 0;
} else if (duration == 0) {
return SystemClock.elapsedRealtime() - connectTimeReal;
} else {
return duration;
}
}
public long getHoldDurationMillis() {
if (getState() != CdmaCall.State.HOLDING) {
// If not holding, return 0
return 0;
} else {
return SystemClock.elapsedRealtime() - holdingStartTime;
}
}
public DisconnectCause getDisconnectCause() {
return cause;
}
public boolean isIncoming() {
return isIncoming;
}
public CdmaCall.State getState() {
if (disconnected) {
return CdmaCall.State.DISCONNECTED;
} else {
return super.getState();
}
}
public void hangup() throws CallStateException {
if (!disconnected) {
owner.hangup(this);
} else {
throw new CallStateException ("disconnected");
}
}
public void separate() throws CallStateException {
if (!disconnected) {
owner.separate(this);
} else {
throw new CallStateException ("disconnected");
}
}
public PostDialState getPostDialState() {
return postDialState;
}
public void proceedAfterWaitChar() {
if (postDialState != PostDialState.WAIT) {
Log.w(LOG_TAG, "CdmaConnection.proceedAfterWaitChar(): Expected "
+ "getPostDialState() to be WAIT but was " + postDialState);
return;
}
setPostDialState(PostDialState.STARTED);
processNextPostDialChar();
}
public void proceedAfterWildChar(String str) {
if (postDialState != PostDialState.WILD) {
Log.w(LOG_TAG, "CdmaConnection.proceedAfterWaitChar(): Expected "
+ "getPostDialState() to be WILD but was " + postDialState);
return;
}
setPostDialState(PostDialState.STARTED);
if (false) {
boolean playedTone = false;
int len = (str != null ? str.length() : 0);
for (int i=0; i<len; i++) {
char c = str.charAt(i);
Message msg = null;
if (i == len-1) {
msg = h.obtainMessage(EVENT_DTMF_DONE);
}
if (PhoneNumberUtils.is12Key(c)) {
owner.cm.sendDtmf(c, msg);
playedTone = true;
}
}
if (!playedTone) {
processNextPostDialChar();
}
} else {
// make a new postDialString, with the wild char replacement string
// at the beginning, followed by the remaining postDialString.
StringBuilder buf = new StringBuilder(str);
buf.append(postDialString.substring(nextPostDialChar));
postDialString = buf.toString();
nextPostDialChar = 0;
if (Phone.DEBUG_PHONE) {
log("proceedAfterWildChar: new postDialString is " +
postDialString);
}
processNextPostDialChar();
}
}
public void cancelPostDial() {
setPostDialState(PostDialState.CANCELLED);
}
/**
* Called when this Connection is being hung up locally (eg, user pressed "end")
* Note that at this point, the hangup request has been dispatched to the radio
* but no response has yet been received so update() has not yet been called
*/
void
onHangupLocal() {
cause = DisconnectCause.LOCAL;
}
DisconnectCause
disconnectCauseFromCode(int causeCode) {
/**
* See 22.001 Annex F.4 for mapping of cause codes
* to local tones
*/
switch (causeCode) {
case CallFailCause.USER_BUSY:
return DisconnectCause.BUSY;
case CallFailCause.NO_CIRCUIT_AVAIL:
return DisconnectCause.CONGESTION;
case CallFailCause.ACM_LIMIT_EXCEEDED:
return DisconnectCause.LIMIT_EXCEEDED;
case CallFailCause.CALL_BARRED:
return DisconnectCause.CALL_BARRED;
case CallFailCause.FDN_BLOCKED:
return DisconnectCause.FDN_BLOCKED;
case CallFailCause.CDMA_LOCKED_UNTIL_POWER_CYCLE:
return DisconnectCause.CDMA_LOCKED_UNTIL_POWER_CYCLE;
case CallFailCause.CDMA_DROP:
return DisconnectCause.CDMA_DROP;
case CallFailCause.CDMA_INTERCEPT:
return DisconnectCause.CDMA_INTERCEPT;
case CallFailCause.CDMA_REORDER:
return DisconnectCause.CDMA_REORDER;
case CallFailCause.CDMA_SO_REJECT:
return DisconnectCause.CDMA_SO_REJECT;
case CallFailCause.CDMA_RETRY_ORDER:
return DisconnectCause.CDMA_RETRY_ORDER;
case CallFailCause.CDMA_ACCESS_FAILURE:
return DisconnectCause.CDMA_ACCESS_FAILURE;
case CallFailCause.CDMA_PREEMPTED:
return DisconnectCause.CDMA_PREEMPTED;
case CallFailCause.CDMA_NOT_EMERGENCY:
return DisconnectCause.CDMA_NOT_EMERGENCY;
case CallFailCause.CDMA_ACCESS_BLOCKED:
return DisconnectCause.CDMA_ACCESS_BLOCKED;
case CallFailCause.ERROR_UNSPECIFIED:
case CallFailCause.NORMAL_CLEARING:
default:
CDMAPhone phone = owner.phone;
int serviceState = phone.getServiceState().getState();
if (serviceState == ServiceState.STATE_POWER_OFF) {
return DisconnectCause.POWER_OFF;
} else if (serviceState == ServiceState.STATE_OUT_OF_SERVICE
|| serviceState == ServiceState.STATE_EMERGENCY_ONLY) {
return DisconnectCause.OUT_OF_SERVICE;
} else if (phone.mCM.getNvState() != CommandsInterface.RadioState.NV_READY
&& phone.getIccCard().getState() != RuimCard.State.READY) {
return DisconnectCause.ICC_ERROR;
} else if (causeCode==CallFailCause.NORMAL_CLEARING) {
return DisconnectCause.NORMAL;
} else {
return DisconnectCause.ERROR_UNSPECIFIED;
}
}
}
/*package*/ void
onRemoteDisconnect(int causeCode) {
onDisconnect(disconnectCauseFromCode(causeCode));
}
/** Called when the radio indicates the connection has been disconnected */
/*package*/ void
onDisconnect(DisconnectCause cause) {
this.cause = cause;
if (!disconnected) {
doDisconnect();
if (false) Log.d(LOG_TAG,
"[CDMAConn] onDisconnect: cause=" + cause);
owner.phone.notifyDisconnect(this);
if (parent != null) {
parent.connectionDisconnected(this);
}
}
releaseWakeLock();
}
/** Called when the call waiting connection has been hung up */
/*package*/ void
onLocalDisconnect() {
if (!disconnected) {
doDisconnect();
if (false) Log.d(LOG_TAG,
"[CDMAConn] onLoalDisconnect" );
if (parent != null) {
parent.detach(this);
}
}
releaseWakeLock();
}
// Returns true if state has changed, false if nothing changed
/*package*/ boolean
update (DriverCall dc) {
CdmaCall newParent;
boolean changed = false;
boolean wasConnectingInOrOut = isConnectingInOrOut();
boolean wasHolding = (getState() == CdmaCall.State.HOLDING);
newParent = parentFromDCState(dc.state);
if (Phone.DEBUG_PHONE) log("parent= " +parent +", newParent= " + newParent);
if (!equalsHandlesNulls(address, dc.number)) {
if (Phone.DEBUG_PHONE) log("update: phone # changed!");
address = dc.number;
changed = true;
}
// A null cnapName should be the same as ""
if (TextUtils.isEmpty(dc.name)) {
if (!TextUtils.isEmpty(cnapName)) {
changed = true;
cnapName = "";
}
} else if (!dc.name.equals(cnapName)) {
changed = true;
cnapName = dc.name;
}
if (Phone.DEBUG_PHONE) log("--dssds----"+cnapName);
cnapNamePresentation = dc.namePresentation;
numberPresentation = dc.numberPresentation;
if (newParent != parent) {
if (parent != null) {
parent.detach(this);
}
newParent.attach(this, dc);
parent = newParent;
changed = true;
} else {
boolean parentStateChange;
parentStateChange = parent.update (this, dc);
changed = changed || parentStateChange;
}
/** Some state-transition events */
if (Phone.DEBUG_PHONE) log(
"Update, wasConnectingInOrOut=" + wasConnectingInOrOut +
", wasHolding=" + wasHolding +
", isConnectingInOrOut=" + isConnectingInOrOut() +
", changed=" + changed);
if (wasConnectingInOrOut && !isConnectingInOrOut()) {
onConnectedInOrOut();
}
if (changed && !wasHolding && (getState() == CdmaCall.State.HOLDING)) {
// We've transitioned into HOLDING
onStartedHolding();
}
return changed;
}
/**
* Called when this Connection is in the foregroundCall
* when a dial is initiated.
* We know we're ACTIVE, and we know we're going to end up
* HOLDING in the backgroundCall
*/
void
fakeHoldBeforeDial() {
if (parent != null) {
parent.detach(this);
}
parent = owner.backgroundCall;
parent.attachFake(this, CdmaCall.State.HOLDING);
onStartedHolding();
}
/*package*/ int
getCDMAIndex() throws CallStateException {
if (index >= 0) {
return index + 1;
} else {
throw new CallStateException ("CDMA connection index not assigned");
}
}
/**
* An incoming or outgoing call has connected
*/
void
onConnectedInOrOut() {
connectTime = System.currentTimeMillis();
connectTimeReal = SystemClock.elapsedRealtime();
duration = 0;
// bug #678474: incoming call interpreted as missed call, even though
// it sounds like the user has picked up the call.
if (Phone.DEBUG_PHONE) {
log("onConnectedInOrOut: connectTime=" + connectTime);
}
if (!isIncoming) {
// outgoing calls only
processNextPostDialChar();
} else {
// Only release wake lock for incoming calls, for outgoing calls the wake lock
// will be released after any pause-dial is completed
releaseWakeLock();
}
}
private void
doDisconnect() {
index = -1;
disconnectTime = System.currentTimeMillis();
duration = SystemClock.elapsedRealtime() - connectTimeReal;
disconnected = true;
}
private void
onStartedHolding() {
holdingStartTime = SystemClock.elapsedRealtime();
}
/**
* Performs the appropriate action for a post-dial char, but does not
* notify application. returns false if the character is invalid and
* should be ignored
*/
private boolean
processPostDialChar(char c) {
if (PhoneNumberUtils.is12Key(c)) {
owner.cm.sendDtmf(c, h.obtainMessage(EVENT_DTMF_DONE));
} else if (c == PhoneNumberUtils.PAUSE) {
setPostDialState(PostDialState.PAUSE);
// Upon occurrences of the separator, the UE shall
// pause again for 2 seconds before sending any
// further DTMF digits.
h.sendMessageDelayed(h.obtainMessage(EVENT_PAUSE_DONE),
PAUSE_DELAY_MILLIS);
} else if (c == PhoneNumberUtils.WAIT) {
setPostDialState(PostDialState.WAIT);
} else if (c == PhoneNumberUtils.WILD) {
setPostDialState(PostDialState.WILD);
} else {
return false;
}
return true;
}
public String getRemainingPostDialString() {
if (postDialState == PostDialState.CANCELLED
|| postDialState == PostDialState.COMPLETE
|| postDialString == null
|| postDialString.length() <= nextPostDialChar) {
return "";
}
String subStr = postDialString.substring(nextPostDialChar);
if (subStr != null) {
int wIndex = subStr.indexOf(PhoneNumberUtils.WAIT);
int pIndex = subStr.indexOf(PhoneNumberUtils.PAUSE);
if (wIndex > 0 && (wIndex < pIndex || pIndex <= 0)) {
subStr = subStr.substring(0, wIndex);
} else if (pIndex > 0) {
subStr = subStr.substring(0, pIndex);
}
}
return subStr;
}
public void updateParent(CdmaCall oldParent, CdmaCall newParent){
if (newParent != oldParent) {
if (oldParent != null) {
oldParent.detach(this);
}
newParent.attachFake(this, CdmaCall.State.ACTIVE);
parent = newParent;
}
}
@Override
protected void finalize()
{
/**
* It is understood that This finializer is not guaranteed
* to be called and the release lock call is here just in
* case there is some path that doesn't call onDisconnect
* and or onConnectedInOrOut.
*/
if (mPartialWakeLock.isHeld()) {
Log.e(LOG_TAG, "[CdmaConn] UNEXPECTED; mPartialWakeLock is held when finalizing.");
}
releaseWakeLock();
}
void processNextPostDialChar() {
char c = 0;
Registrant postDialHandler;
if (postDialState == PostDialState.CANCELLED) {
releaseWakeLock();
//Log.v("CDMA", "##### processNextPostDialChar: postDialState == CANCELLED, bail");
return;
}
if (postDialString == null ||
postDialString.length() <= nextPostDialChar) {
setPostDialState(PostDialState.COMPLETE);
// We were holding a wake lock until pause-dial was complete, so give it up now
releaseWakeLock();
// notifyMessage.arg1 is 0 on complete
c = 0;
} else {
boolean isValid;
setPostDialState(PostDialState.STARTED);
c = postDialString.charAt(nextPostDialChar++);
isValid = processPostDialChar(c);
if (!isValid) {
// Will call processNextPostDialChar
h.obtainMessage(EVENT_NEXT_POST_DIAL).sendToTarget();
// Don't notify application
Log.e("CDMA", "processNextPostDialChar: c=" + c + " isn't valid!");
return;
}
}
postDialHandler = owner.phone.mPostDialHandler;
Message notifyMessage;
if (postDialHandler != null &&
(notifyMessage = postDialHandler.messageForRegistrant()) != null) {
// The AsyncResult.result is the Connection object
PostDialState state = postDialState;
AsyncResult ar = AsyncResult.forMessage(notifyMessage);
ar.result = this;
ar.userObj = state;
// arg1 is the character that was/is being processed
notifyMessage.arg1 = c;
notifyMessage.sendToTarget();
}
}
/** "connecting" means "has never been ACTIVE" for both incoming
* and outgoing calls
*/
private boolean
isConnectingInOrOut() {
return parent == null || parent == owner.ringingCall
|| parent.state == CdmaCall.State.DIALING
|| parent.state == CdmaCall.State.ALERTING;
}
private CdmaCall
parentFromDCState (DriverCall.State state) {
switch (state) {
case ACTIVE:
case DIALING:
case ALERTING:
return owner.foregroundCall;
//break;
case HOLDING:
return owner.backgroundCall;
//break;
case INCOMING:
case WAITING:
return owner.ringingCall;
//break;
default:
throw new RuntimeException("illegal call state: " + state);
}
}
/**
* Set post dial state and acquire wake lock while switching to "started" or "wait"
* state, the wake lock will be released if state switches out of "started" or "wait"
* state or after WAKE_LOCK_TIMEOUT_MILLIS.
* @param s new PostDialState
*/
private void setPostDialState(PostDialState s) {
if (s == PostDialState.STARTED ||
s == PostDialState.PAUSE) {
synchronized (mPartialWakeLock) {
if (mPartialWakeLock.isHeld()) {
h.removeMessages(EVENT_WAKE_LOCK_TIMEOUT);
} else {
acquireWakeLock();
}
Message msg = h.obtainMessage(EVENT_WAKE_LOCK_TIMEOUT);
h.sendMessageDelayed(msg, WAKE_LOCK_TIMEOUT_MILLIS);
}
} else {
h.removeMessages(EVENT_WAKE_LOCK_TIMEOUT);
releaseWakeLock();
}
postDialState = s;
}
private void createWakeLock(Context context) {
PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
mPartialWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, LOG_TAG);
}
private void acquireWakeLock() {
log("acquireWakeLock");
mPartialWakeLock.acquire();
}
private void releaseWakeLock() {
synchronized (mPartialWakeLock) {
if (mPartialWakeLock.isHeld()) {
log("releaseWakeLock");
mPartialWakeLock.release();
}
}
}
private static boolean isPause(char c) {
return c == PhoneNumberUtils.PAUSE;
}
private static boolean isWait(char c) {
return c == PhoneNumberUtils.WAIT;
}
// This function is to find the next PAUSE character index if
// multiple pauses in a row. Otherwise it finds the next non PAUSE or
// non WAIT character index.
private static int
findNextPCharOrNonPOrNonWCharIndex(String phoneNumber, int currIndex) {
boolean wMatched = isWait(phoneNumber.charAt(currIndex));
int index = currIndex + 1;
int length = phoneNumber.length();
while (index < length) {
char cNext = phoneNumber.charAt(index);
// if there is any W inside P/W sequence,mark it
if (isWait(cNext)) {
wMatched = true;
}
// if any characters other than P/W chars after P/W sequence
// we break out the loop and append the correct
if (!isWait(cNext) && !isPause(cNext)) {
break;
}
index++;
}
// It means the PAUSE character(s) is in the middle of dial string
// and it needs to be handled one by one.
if ((index < length) && (index > (currIndex + 1)) &&
((wMatched == false) && isPause(phoneNumber.charAt(currIndex)))) {
return (currIndex + 1);
}
return index;
}
// This function returns either PAUSE or WAIT character to append.
// It is based on the next non PAUSE/WAIT character in the phoneNumber and the
// index for the current PAUSE/WAIT character
private static char
findPOrWCharToAppend(String phoneNumber, int currPwIndex, int nextNonPwCharIndex) {
char c = phoneNumber.charAt(currPwIndex);
char ret;
// Append the PW char
ret = (isPause(c)) ? PhoneNumberUtils.PAUSE : PhoneNumberUtils.WAIT;
// If the nextNonPwCharIndex is greater than currPwIndex + 1,
// it means the PW sequence contains not only P characters.
// Since for the sequence that only contains P character,
// the P character is handled one by one, the nextNonPwCharIndex
// equals to currPwIndex + 1.
// In this case, skip P, append W.
if (nextNonPwCharIndex > (currPwIndex + 1)) {
ret = PhoneNumberUtils.WAIT;
}
return ret;
}
/**
* format original dial string
* 1) convert international dialing prefix "+" to
* string specified per region
*
* 2) handle corner cases for PAUSE/WAIT dialing:
*
* If PAUSE/WAIT sequence at the end, ignore them.
*
* If consecutive PAUSE/WAIT sequence in the middle of the string,
* and if there is any WAIT in PAUSE/WAIT sequence, treat them like WAIT.
*/
public static String formatDialString(String phoneNumber) {
/**
* TODO(cleanup): This function should move to PhoneNumberUtils, and
* tests should be added.
*/
if (phoneNumber == null) {
return null;
}
int length = phoneNumber.length();
StringBuilder ret = new StringBuilder();
char c;
int currIndex = 0;
while (currIndex < length) {
c = phoneNumber.charAt(currIndex);
if (isPause(c) || isWait(c)) {
if (currIndex < length - 1) {
// if PW not at the end
int nextIndex = findNextPCharOrNonPOrNonWCharIndex(phoneNumber, currIndex);
// If there is non PW char following PW sequence
if (nextIndex < length) {
char pC = findPOrWCharToAppend(phoneNumber, currIndex, nextIndex);
ret.append(pC);
// If PW char sequence has more than 2 PW characters,
// skip to the last PW character since the sequence already be
// converted to WAIT character
if (nextIndex > (currIndex + 1)) {
currIndex = nextIndex - 1;
}
} else if (nextIndex == length) {
// It means PW characters at the end, ignore
currIndex = length - 1;
}
}
} else {
ret.append(c);
}
currIndex++;
}
return PhoneNumberUtils.cdmaCheckAndProcessPlusCode(ret.toString());
}
private void log(String msg) {
Log.d(LOG_TAG, "[CDMAConn] " + msg);
}
@Override
public int getNumberPresentation() {
return numberPresentation;
}
@Override
public UUSInfo getUUSInfo() {
// UUS information not supported in CDMA
return null;
}
}