Merge "Integrate OTA emergency number database with EmergencyNumberTracker" (f0dce34c) · Commits · e / os / android_frameworks_opt_telephony

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

+125 −10

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.os.AsyncResult;
		import android.os.Environment;
		import android.os.Handler;
		import android.os.Message;
		import android.os.PersistableBundle;
		@@ -49,11 +50,11 @@ import com.android.internal.util.IndentingPrintWriter;
		import com.android.phone.ecc.nano.ProtobufEccData;
		import com.android.phone.ecc.nano.ProtobufEccData.EccInfo;

		import libcore.io.IoUtils;

		import java.io.BufferedInputStream;
		import java.io.ByteArrayOutputStream;
		import java.io.File;
		import java.io.FileDescriptor;
		import java.io.FileInputStream;
		import java.io.IOException;
		import java.io.InputStream;
		import java.io.PrintWriter;
		@@ -70,6 +71,12 @@ import java.util.zip.GZIPInputStream;
		public class EmergencyNumberTracker extends Handler {
		private static final String TAG = EmergencyNumberTracker.class.getSimpleName();

		private static final int INVALID_DATABASE_VERSION = -1;
		private static final String EMERGENCY_NUMBER_DB_OTA_FILE_NAME = "emergency_number_db";
		private static final String EMERGENCY_NUMBER_DB_OTA_FILE_PATH =
		"misc/emergencynumberdb/" + EMERGENCY_NUMBER_DB_OTA_FILE_NAME;


		/** @hide */
		public static boolean DBG = false;
		/** @hide */
		@@ -82,6 +89,7 @@ public class EmergencyNumberTracker extends Handler {
		private final CommandsInterface mCi;
		private final Phone mPhone;
		private String mCountryIso;
		private int mCurrentDatabaseVersion = INVALID_DATABASE_VERSION;
		/**
		* Indicates if the country iso is set by another subscription.
		* @hide
		@@ -114,6 +122,8 @@ public class EmergencyNumberTracker extends Handler {
		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;
		/** Event indicating the update for the OTA emergency number database. */
		private static final int EVENT_UPDATE_OTA_EMERGENCY_NUMBER_DB = 5;

		private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
		@Override
		@@ -133,7 +143,7 @@ public class EmergencyNumberTracker extends Handler {
		// Sometimes the country is updated as an empty string when the network signal
		// is lost; though we may not call emergency when there is no signal, we want
		// to keep the old country iso to provide country-related emergency numbers,
		// because they think they are still in that country. So we do need to update
		// because they think they are still in that country. We don't need to update
		// country change in this case.
		if (TextUtils.isEmpty(countryIso)) {
		return;
		@@ -143,6 +153,11 @@ public class EmergencyNumberTracker extends Handler {
		updateEmergencyCountryIsoAllPhones(countryIso);
		}
		return;
		} else if (intent.getAction().equals(
		TelephonyManager.ACTION_OTA_EMERGENCY_NUMBER_DB_INSTALLED)) {
		logd("ACTION_OTA_EMERGENCY_NUMBER_DB_INSTALLED: triggered");
		updateOtaEmergencyNumberDatabase();
		return;
		}
		}
		};
		@@ -168,6 +183,8 @@ public class EmergencyNumberTracker extends Handler {
		CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED);
		// Receive Telephony Network Country Changes
		filter.addAction(TelephonyManager.ACTION_NETWORK_COUNTRY_CHANGED);
		// Receive Emergency Number OTA Update Changes
		filter.addAction(TelephonyManager.ACTION_OTA_EMERGENCY_NUMBER_DB_INSTALLED);

		mPhone.getContext().registerReceiver(mIntentReceiver, filter);
		} else {
		@@ -223,7 +240,10 @@ public class EmergencyNumberTracker extends Handler {
		} else {
		updateEmergencyNumberPrefixAndNotify((String[]) msg.obj);
		}

		break;
		case EVENT_UPDATE_OTA_EMERGENCY_NUMBER_DB:
		updateOtaEmergencyNumberListDatabaseAndNotify();
		break;
		}
		}

		@@ -312,6 +332,15 @@ public class EmergencyNumberTracker extends Handler {
		this.obtainMessage(EVENT_UPDATE_DB_COUNTRY_ISO_CHANGED, countryIso).sendToTarget();
		}

		/**
		* Update changed OTA Emergency Number database.
		*
		* @hide
		*/
		public void updateOtaEmergencyNumberDatabase() {
		this.obtainMessage(EVENT_UPDATE_OTA_EMERGENCY_NUMBER_DB).sendToTarget();
		}

		private EmergencyNumber convertEmergencyNumberFromEccInfo(EccInfo eccInfo, String countryIso) {
		String phoneNumber = eccInfo.phoneNumber.trim();
		if (phoneNumber.isEmpty()) {
		@@ -351,25 +380,29 @@ public class EmergencyNumberTracker extends Handler {
		private void cacheEmergencyDatabaseByCountry(String countryIso) {
		BufferedInputStream inputStream = null;
		ProtobufEccData.AllInfo allEccMessages = null;
		List<EmergencyNumber> updatedEmergencyNumberList = new ArrayList<>();
		int assetsDatabaseVersion = INVALID_DATABASE_VERSION;

		// Read the Asset emergency number database
		List<EmergencyNumber> updatedAssetEmergencyNumberList = new ArrayList<>();
		try {
		inputStream = new BufferedInputStream(
		mPhone.getContext().getAssets().open(EMERGENCY_NUMBER_DB_ASSETS_FILE));
		allEccMessages = ProtobufEccData.AllInfo.parseFrom(readInputStreamToByteArray(
		new GZIPInputStream(inputStream)));
		logd(countryIso + " emergency database is loaded. ");
		assetsDatabaseVersion = allEccMessages.revision;
		logd(countryIso + " asset emergency database is loaded. Ver: " + assetsDatabaseVersion
		+ " Phone Id: " + mPhone.getPhoneId());
		for (ProtobufEccData.CountryInfo countryEccInfo : allEccMessages.countries) {
		if (countryEccInfo.isoCode.equals(countryIso.toUpperCase())) {
		for (ProtobufEccData.EccInfo eccInfo : countryEccInfo.eccs) {
		updatedEmergencyNumberList.add(convertEmergencyNumberFromEccInfo(
		updatedAssetEmergencyNumberList.add(convertEmergencyNumberFromEccInfo(
		eccInfo, countryIso));
		}
		}
		}
		EmergencyNumber.mergeSameNumbersInEmergencyNumberList(updatedEmergencyNumberList);
		mEmergencyNumberListFromDatabase = updatedEmergencyNumberList;
		EmergencyNumber.mergeSameNumbersInEmergencyNumberList(updatedAssetEmergencyNumberList);
		} catch (IOException ex) {
		loge("Cache emergency database failure: " + ex);
		loge("Cache asset emergency database failure: " + ex);
		} finally {
		// close quietly by catching non-runtime exceptions.
		if (inputStream != null) {
		@@ -381,6 +414,69 @@ public class EmergencyNumberTracker extends Handler {
		}
		}
		}

		// Cache OTA emergency number database
		int otaDatabaseVersion = cacheOtaEmergencyNumberDatabase();

		// Use a valid database that has higher version.
		if (otaDatabaseVersion == INVALID_DATABASE_VERSION
		&& assetsDatabaseVersion == INVALID_DATABASE_VERSION) {
		loge("No database available. Phone Id: " + mPhone.getPhoneId());
		return;
		} else if (assetsDatabaseVersion > otaDatabaseVersion) {
		logd("Using Asset Emergency database. Version: " + assetsDatabaseVersion);
		mCurrentDatabaseVersion = assetsDatabaseVersion;
		mEmergencyNumberListFromDatabase = updatedAssetEmergencyNumberList;
		} else {
		logd("Using Ota Emergency database. Version: " + otaDatabaseVersion);
		}
		}

		private int cacheOtaEmergencyNumberDatabase() {
		BufferedInputStream inputStream = null;
		ProtobufEccData.AllInfo allEccMessages = null;
		int otaDatabaseVersion = INVALID_DATABASE_VERSION;

		// Read the OTA emergency number database
		List<EmergencyNumber> updatedOtaEmergencyNumberList = new ArrayList<>();
		try {
		inputStream = new BufferedInputStream(
		new FileInputStream(new File(Environment.getDataDirectory(),
		EMERGENCY_NUMBER_DB_OTA_FILE_PATH)));
		allEccMessages = ProtobufEccData.AllInfo.parseFrom(readInputStreamToByteArray(
		new GZIPInputStream(inputStream)));
		logd(mCountryIso + " ota emergency database is loaded. Ver: " + otaDatabaseVersion);
		otaDatabaseVersion = allEccMessages.revision;
		for (ProtobufEccData.CountryInfo countryEccInfo : allEccMessages.countries) {
		if (countryEccInfo.isoCode.equals(mCountryIso.toUpperCase())) {
		for (ProtobufEccData.EccInfo eccInfo : countryEccInfo.eccs) {
		updatedOtaEmergencyNumberList.add(convertEmergencyNumberFromEccInfo(
		eccInfo, mCountryIso));
		}
		}
		}
		EmergencyNumber.mergeSameNumbersInEmergencyNumberList(updatedOtaEmergencyNumberList);
		} catch (IOException ex) {
		loge("Cache ota emergency database failure: " + ex);
		} finally {
		// close quietly by catching non-runtime exceptions.
		if (inputStream != null) {
		try {
		inputStream.close();
		} catch (RuntimeException rethrown) {
		throw rethrown;
		} catch (Exception ignored) {
		}
		}
		}

		// Use a valid database that has higher version.
		if (otaDatabaseVersion != INVALID_DATABASE_VERSION
		&& mCurrentDatabaseVersion < otaDatabaseVersion) {
		mCurrentDatabaseVersion = otaDatabaseVersion;
		mEmergencyNumberListFromDatabase = updatedOtaEmergencyNumberList;
		}
		return otaDatabaseVersion;
		}

		/**
		@@ -443,6 +539,25 @@ public class EmergencyNumberTracker extends Handler {
		notifyEmergencyNumberList();
		}

		private void updateOtaEmergencyNumberListDatabaseAndNotify() {
		logd("updateOtaEmergencyNumberListDatabaseAndNotify():"
		+ " receiving Emegency Number database OTA update");
		if (cacheOtaEmergencyNumberDatabase() != INVALID_DATABASE_VERSION) {
		writeUpdatedEmergencyNumberListMetrics(mEmergencyNumberListFromDatabase);
		if (!DBG) {
		mEmergencyNumberListDatabaseLocalLog.log(
		"updateOtaEmergencyNumberListDatabaseAndNotify:"
		+ mEmergencyNumberListFromDatabase);
		}
		updateEmergencyNumberList();
		if (!DBG) {
		mEmergencyNumberListLocalLog.log("updateOtaEmergencyNumberListDatabaseAndNotify:"
		+ mEmergencyNumberList);
		}
		notifyEmergencyNumberList();
		}
		}

		private void updateEmergencyNumberPrefixAndNotify(String[] emergencyNumberPrefix) {
		logd("updateEmergencyNumberPrefixAndNotify(): receiving emergencyNumberPrefix: "
		+ Arrays.toString(emergencyNumberPrefix));