Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit b18cdf9e authored by sqian's avatar sqian
Browse files

Add Prefix per Carrier requirement 

Some carrier requires if users dial an emergency number address with
some prefix, the combination of the prefix and the address is also a
valid emergency number to dial.

Bug: 122429213
Test: Treehugger
Change-Id: I8f71e412554881ba3ade2f97c241c6aecddd0b64
parent aeee86d3

src/java/com/android/internal/telephony/emergency/EmergencyNumberTracker.java

+120 −1
Original line number Diff line number Diff line
@@ -16,14 +16,19 @@ 


package com.android.internal.telephony.emergency;



import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.IntentFilter;

import android.location.Country;

import android.location.CountryDetector;

import android.location.CountryListener;

import android.os.AsyncResult;

import android.os.Handler;

import android.os.Message;

import android.os.PersistableBundle;

import android.os.SystemProperties;

import android.telephony.CarrierConfigManager;

import android.telephony.PhoneNumberUtils;

import android.telephony.Rlog;

import android.telephony.emergency.EmergencyNumber;
@@ -76,16 +81,19 @@ public class EmergencyNumberTracker extends Handler { 
    private final Phone mPhone;

    private CountryDetector mCountryDetector;

    private String mCountryIso;

    private String[] mEmergencyNumberPrefix = new String[0];



    private static final String EMERGENCY_NUMBER_DB_ASSETS_FILE = "eccdata";



    private List<EmergencyNumber> mEmergencyNumberListFromDatabase = new ArrayList<>();

    private List<EmergencyNumber> mEmergencyNumberListFromRadio = new ArrayList<>();

    private List<EmergencyNumber> mEmergencyNumberListWithPrefix = new ArrayList<>();

    private List<EmergencyNumber> mEmergencyNumberListFromTestMode = new ArrayList<>();

    private List<EmergencyNumber> mEmergencyNumberList = new ArrayList<>();



    private final LocalLog mEmergencyNumberListDatabaseLocalLog = new LocalLog(20);

    private final LocalLog mEmergencyNumberListRadioLocalLog = new LocalLog(20);

    private final LocalLog mEmergencyNumberListPrefixLocalLog = new LocalLog(20);

    private final LocalLog mEmergencyNumberListTestModeLocalLog = new LocalLog(20);

    private final LocalLog mEmergencyNumberListLocalLog = new LocalLog(20);
@@ -98,11 +106,38 @@ public class EmergencyNumberTracker extends Handler { 
    private static final int EVENT_UPDATE_DB_COUNTRY_ISO_CHANGED = 2;

    /** Event indicating the update for the emergency number list in the testing mode. */

    private static final int EVENT_UPDATE_EMERGENCY_NUMBER_TEST_MODE = 3;

    /** Event indicating the update for the emergency number prefix from carrier config. */

    private static final int EVENT_UPDATE_EMERGENCY_NUMBER_PREFIX = 4;



    private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {

        @Override

        public void onReceive(Context context, Intent intent) {

            if (intent.getAction().equals(

                    CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED)) {

                onCarrierConfigChanged();

                return;

            }

        }

    };



    public EmergencyNumberTracker(Phone phone, CommandsInterface ci) {

        mPhone = phone;

        mCi = ci;

        if (mPhone != null) {

            CarrierConfigManager configMgr = (CarrierConfigManager)

                    mPhone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);

            if (configMgr != null) {

                PersistableBundle b = configMgr.getConfigForSubId(mPhone.getSubId());

                if (b != null) {

                    mEmergencyNumberPrefix = b.getStringArray(

                            CarrierConfigManager.KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY);

                }

            }



            // Receive Carrier Config changes

            mPhone.getContext().registerReceiver(mIntentReceiver, new IntentFilter(

                    CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED));



            mCountryDetector = (CountryDetector) mPhone.getContext().getSystemService(

                    Context.COUNTRY_DETECTOR);

            if (mCountryDetector != null) {
@@ -155,6 +190,14 @@ public class EmergencyNumberTracker extends Handler { 
                            msg.arg1, (EmergencyNumber) msg.obj);

                }

                break;

            case EVENT_UPDATE_EMERGENCY_NUMBER_PREFIX:

                if (msg.obj == null) {

                    loge("EVENT_UPDATE_EMERGENCY_NUMBER_PREFIX: Result from"

                            + " onCarrierConfigChanged is null.");

                } else {

                    updateEmergencyNumberPrefixAndNotify((String[]) msg.obj);

                }



        }

    }
@@ -167,6 +210,26 @@ public class EmergencyNumberTracker extends Handler { 
        }

    }



    private void onCarrierConfigChanged() {

        if (mPhone != null) {

            CarrierConfigManager configMgr = (CarrierConfigManager)

                    mPhone.getContext().getSystemService(Context.CARRIER_CONFIG_SERVICE);

            if (configMgr != null) {

                PersistableBundle b = configMgr.getConfigForSubId(mPhone.getSubId());

                if (b != null) {

                    String[] emergencyNumberPrefix = b.getStringArray(

                            CarrierConfigManager.KEY_EMERGENCY_NUMBER_PREFIX_STRING_ARRAY);

                    if (!mEmergencyNumberPrefix.equals(emergencyNumberPrefix)) {

                        this.obtainMessage(EVENT_UPDATE_EMERGENCY_NUMBER_PREFIX,

                                emergencyNumberPrefix).sendToTarget();

                    }

                }

            }

        } else {

            loge("onCarrierConfigChanged mPhone is null.");

        }

    }



    private String getInitialCountryIso() {

        Country country = null;

        if (mCountryDetector != null) {
@@ -281,7 +344,6 @@ public class EmergencyNumberTracker extends Handler { 
            List<EmergencyNumber> emergencyNumberListRadio) {

        Collections.sort(emergencyNumberListRadio);

        logd("updateRadioEmergencyNumberListAndNotify(): receiving " + emergencyNumberListRadio);



        if (!emergencyNumberListRadio.equals(mEmergencyNumberListFromRadio)) {

            try {

                EmergencyNumber.mergeSameNumbersInEmergencyNumberList(emergencyNumberListRadio);
@@ -322,6 +384,18 @@ public class EmergencyNumberTracker extends Handler { 
        notifyEmergencyNumberList();

    }



    private void updateEmergencyNumberPrefixAndNotify(String[] emergencyNumberPrefix) {

        logd("updateEmergencyNumberPrefixAndNotify(): receiving emergencyNumberPrefix: "

                + emergencyNumberPrefix.toString());

        mEmergencyNumberPrefix = emergencyNumberPrefix;

        updateEmergencyNumberList();

        if (!DBG) {

            mEmergencyNumberListLocalLog.log("updateEmergencyNumberPrefixAndNotify:"

                    + mEmergencyNumberList);

        }

        notifyEmergencyNumberList();

    }



    private void notifyEmergencyNumberList() {

        try {

            if (getEmergencyNumberList() != null) {
@@ -341,6 +415,23 @@ public class EmergencyNumberTracker extends Handler { 
        List<EmergencyNumber> mergedEmergencyNumberList =

                new ArrayList<>(mEmergencyNumberListFromDatabase);

        mergedEmergencyNumberList.addAll(mEmergencyNumberListFromRadio);

        // 'updateEmergencyNumberList' is called every time there is a change for emergency numbers

        // from radio indication, emergency numbers from database, emergency number prefix from

        // carrier config, or test mode emergency numbers, the emergency number prefix is changed

        // by carrier config, the emergency number list with prefix needs to be clear, and re-apply

        // the new prefix for the current emergency numbers.

        mEmergencyNumberListWithPrefix.clear();

        if (mEmergencyNumberPrefix.length != 0) {

            mEmergencyNumberListWithPrefix.addAll(getEmergencyNumberListWithPrefix(

                    mEmergencyNumberListFromRadio));

            mEmergencyNumberListWithPrefix.addAll(getEmergencyNumberListWithPrefix(

                    mEmergencyNumberListFromDatabase));

        }

        if (!DBG) {

            mEmergencyNumberListPrefixLocalLog.log("updateEmergencyNumberList:"

                    + mEmergencyNumberListWithPrefix);

        }

        mergedEmergencyNumberList.addAll(mEmergencyNumberListWithPrefix);

        mergedEmergencyNumberList.addAll(mEmergencyNumberListFromTestMode);

        EmergencyNumber.mergeSameNumbersInEmergencyNumberList(mergedEmergencyNumberList);

        mEmergencyNumberList = mergedEmergencyNumberList;
@@ -474,10 +565,31 @@ public class EmergencyNumberTracker extends Handler { 
        for (String emergencyNum : emergencyNumbers.split(",")) {

            emergencyNumberList.add(getLabeledEmergencyNumberForEcclist(emergencyNum));

        }

        if (mEmergencyNumberPrefix.length != 0) {

            emergencyNumberList.addAll(getEmergencyNumberListWithPrefix(emergencyNumberList));

        }

        EmergencyNumber.mergeSameNumbersInEmergencyNumberList(emergencyNumberList);

        return emergencyNumberList;

    }



    private List<EmergencyNumber> getEmergencyNumberListWithPrefix(

            List<EmergencyNumber> emergencyNumberList) {

        List<EmergencyNumber> emergencyNumberListWithPrefix = new ArrayList<>();

        for (EmergencyNumber num : emergencyNumberList) {

            for (String prefix : mEmergencyNumberPrefix) {

                // If an emergency number has started with the prefix, no need to apply the prefix.

                if (!num.getNumber().startsWith(prefix)) {

                    emergencyNumberListWithPrefix.add(new EmergencyNumber(

                            prefix + num.getNumber(), num.getCountryIso(),

                            num.getMnc(), num.getEmergencyServiceCategoryBitmask(),

                            num.getEmergencyUrns(), num.getEmergencyNumberSourceBitmask(),

                            num.getEmergencyCallRouting()));

                }

            }

        }

        return emergencyNumberListWithPrefix;

    }



    private boolean isEmergencyNumberForTest(String number) {

        for (EmergencyNumber num : mEmergencyNumberListFromTestMode) {

            if (num.getNumber().equals(number)) {
@@ -634,6 +746,7 @@ public class EmergencyNumberTracker extends Handler { 


    private List<EmergencyNumber> getEmergencyNumberListFromEccListAndTest() {

        List<EmergencyNumber> mergedEmergencyNumberList = getEmergencyNumberListFromEccList();

        mergedEmergencyNumberList.addAll(mEmergencyNumberListWithPrefix);

        mergedEmergencyNumberList.addAll(getEmergencyNumberListTestMode());

        return mergedEmergencyNumberList;

    }
@@ -679,6 +792,12 @@ public class EmergencyNumberTracker extends Handler { 
        ipw.decreaseIndent();

        ipw.println("   -   -   -   -   -   -   -   -");



        ipw.println("mEmergencyNumberListPrefixLocalLog:");

        ipw.increaseIndent();

        mEmergencyNumberListPrefixLocalLog.dump(fd, pw, args);

        ipw.decreaseIndent();

        ipw.println("   -   -   -   -   -   -   -   -");



        ipw.println("mEmergencyNumberListTestModeLocalLog:");

        ipw.increaseIndent();

        mEmergencyNumberListTestModeLocalLog.dump(fd, pw, args);