Examples with ProcFileReader com.android.internal.util.ProcFileReader used on opensource projects

Example 16 with ProcFileReader

use of com.android.internal.util.ProcFileReader in project android_frameworks_base by DirtyUnicorns.

the class NetworkStatsFactory method readNetworkStatsSummaryXt.

/**
     * Parse and return interface-level summary {@link NetworkStats}. Designed
     * to return only IP layer traffic. Values monotonically increase since
     * device boot, and may include details about inactive interfaces.
     *
     * @throws IllegalStateException when problem parsing stats.
     */
public NetworkStats readNetworkStatsSummaryXt() throws IOException {
    final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
    // return null when kernel doesn't support
    if (!mStatsXtIfaceFmt.exists())
        return null;
    final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 6);
    final NetworkStats.Entry entry = new NetworkStats.Entry();
    ProcFileReader reader = null;
    try {
        // open and consume header line
        reader = new ProcFileReader(new FileInputStream(mStatsXtIfaceFmt));
        reader.finishLine();
        while (reader.hasMoreData()) {
            entry.iface = reader.nextString();
            entry.uid = UID_ALL;
            entry.set = SET_ALL;
            entry.tag = TAG_NONE;
            entry.rxBytes = reader.nextLong();
            entry.rxPackets = reader.nextLong();
            entry.txBytes = reader.nextLong();
            entry.txPackets = reader.nextLong();
            stats.addValues(entry);
            reader.finishLine();
        }
    } catch (NullPointerException e) {
        throw new ProtocolException("problem parsing stats", e);
    } catch (NumberFormatException e) {
        throw new ProtocolException("problem parsing stats", e);
    } finally {
        IoUtils.closeQuietly(reader);
        StrictMode.setThreadPolicy(savedPolicy);
    }
    return stats;
}

Example 17 with ProcFileReader

use of com.android.internal.util.ProcFileReader in project android_frameworks_base by crdroidandroid.

the class NetworkStatsFactory method readNetworkStatsSummaryXt.

/**
     * Parse and return interface-level summary {@link NetworkStats}. Designed
     * to return only IP layer traffic. Values monotonically increase since
     * device boot, and may include details about inactive interfaces.
     *
     * @throws IllegalStateException when problem parsing stats.
     */
public NetworkStats readNetworkStatsSummaryXt() throws IOException {
    final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
    // return null when kernel doesn't support
    if (!mStatsXtIfaceFmt.exists())
        return null;
    final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 6);
    final NetworkStats.Entry entry = new NetworkStats.Entry();
    ProcFileReader reader = null;
    try {
        // open and consume header line
        reader = new ProcFileReader(new FileInputStream(mStatsXtIfaceFmt));
        reader.finishLine();
        while (reader.hasMoreData()) {
            entry.iface = reader.nextString();
            entry.uid = UID_ALL;
            entry.set = SET_ALL;
            entry.tag = TAG_NONE;
            entry.rxBytes = reader.nextLong();
            entry.rxPackets = reader.nextLong();
            entry.txBytes = reader.nextLong();
            entry.txPackets = reader.nextLong();
            stats.addValues(entry);
            reader.finishLine();
        }
    } catch (NullPointerException e) {
        throw new ProtocolException("problem parsing stats", e);
    } catch (NumberFormatException e) {
        throw new ProtocolException("problem parsing stats", e);
    } finally {
        IoUtils.closeQuietly(reader);
        StrictMode.setThreadPolicy(savedPolicy);
    }
    return stats;
}

Example 18 with ProcFileReader

use of com.android.internal.util.ProcFileReader in project android_frameworks_base by crdroidandroid.

the class NetworkStatsFactory method javaReadNetworkStatsDetail.

/**
     * Parse and return {@link NetworkStats} with UID-level details. Values are
     * expected to monotonically increase since device boot.
     */
@VisibleForTesting
public static NetworkStats javaReadNetworkStatsDetail(File detailPath, int limitUid, String[] limitIfaces, int limitTag) throws IOException {
    final StrictMode.ThreadPolicy savedPolicy = StrictMode.allowThreadDiskReads();
    final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 24);
    final NetworkStats.Entry entry = new NetworkStats.Entry();
    int idx = 1;
    int lastIdx = 1;
    ProcFileReader reader = null;
    try {
        // open and consume header line
        reader = new ProcFileReader(new FileInputStream(detailPath));
        reader.finishLine();
        while (reader.hasMoreData()) {
            idx = reader.nextInt();
            if (idx != lastIdx + 1) {
                throw new ProtocolException("inconsistent idx=" + idx + " after lastIdx=" + lastIdx);
            }
            lastIdx = idx;
            entry.iface = reader.nextString();
            entry.tag = kernelToTag(reader.nextString());
            entry.uid = reader.nextInt();
            entry.set = reader.nextInt();
            entry.rxBytes = reader.nextLong();
            entry.rxPackets = reader.nextLong();
            entry.txBytes = reader.nextLong();
            entry.txPackets = reader.nextLong();
            if ((limitIfaces == null || ArrayUtils.contains(limitIfaces, entry.iface)) && (limitUid == UID_ALL || limitUid == entry.uid) && (limitTag == TAG_ALL || limitTag == entry.tag)) {
                stats.addValues(entry);
            }
            reader.finishLine();
        }
    } catch (NullPointerException e) {
        throw new ProtocolException("problem parsing idx " + idx, e);
    } catch (NumberFormatException e) {
        throw new ProtocolException("problem parsing idx " + idx, e);
    } finally {
        IoUtils.closeQuietly(reader);
        StrictMode.setThreadPolicy(savedPolicy);
    }
    return stats;
}