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Commit 41d98ac1 authored by Chen Chen's avatar Chen Chen
Browse files

BluetoothMetrics: Add fallback solution for device names 

Bug: 264937355
Test: atest BluetoothInstrumentationTests
Change-Id: If7d8aa463decc99cf95437d7a608ed2612323560
parent 5a00b850

android/app/src/com/android/bluetooth/btservice/MetricsLogger.java

+17 −5
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ import com.android.internal.annotations.VisibleForTesting; 
import com.google.common.hash.BloomFilter;

import com.google.common.hash.Funnels;



import java.io.ByteArrayInputStream;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;
@@ -43,8 +44,8 @@ import java.util.HashMap; 
 */

public class MetricsLogger {

    private static final String TAG = "BluetoothMetricsLogger";

    private static final String BLOOMFILTER_PATH = "/data/misc/bluetooth/metrics";

    private static final String BLOOMFILTER_FILE = "/devices";

    private static final String BLOOMFILTER_PATH = "/data/misc/bluetooth";

    private static final String BLOOMFILTER_FILE = "/devices_for_metrics";

    public static final String BLOOMFILTER_FULL_PATH = BLOOMFILTER_PATH + BLOOMFILTER_FILE;



    public static final boolean DEBUG = false;
@@ -112,8 +113,19 @@ public class MetricsLogger { 
            FileInputStream in = new FileInputStream(new File(path));

            mBloomFilter = BloomFilter.readFrom(in, Funnels.byteArrayFunnel());

            mBloomFilterInitialized = true;

        } catch (IOException e) {

            Log.w(TAG, "MetricsLogger can't read the BloomFilter file");

        } catch (IOException e1) {

            Log.w(TAG, "MetricsLogger can't read the BloomFilter file.");

            byte[] bloomfilterData = DeviceBloomfilterGenerator.hexStringToByteArray(

                    DeviceBloomfilterGenerator.BLOOM_FILTER_DEFAULT);

            try {

                mBloomFilter = BloomFilter.readFrom(

                        new ByteArrayInputStream(bloomfilterData), Funnels.byteArrayFunnel());

                mBloomFilterInitialized = true;

                Log.i(TAG, "The default bloomfilter is used");

                return true;

            } catch (IOException e2) {

                Log.w(TAG, "The default bloomfilter can't be used.");

            }

            return false;

        }

        return true;
@@ -253,7 +265,7 @@ public class MetricsLogger { 
    }



    protected boolean logSanitizedBluetoothDeviceName(int metricId, String deviceName) {

        if (!mBloomFilterInitialized) {

        if (!mBloomFilterInitialized || deviceName == null) {

            return false;

        }