| /* |
| * Copyright (C) 2016 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.loganalysis.parser; |
| |
| import com.android.loganalysis.item.DumpsysWifiStatsItem; |
| |
| import java.util.List; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * A {@link IParser} to parse wifi stats and extract the number of disconnects and scans |
| */ |
| public class DumpsysWifiStatsParser implements IParser { |
| |
| /** |
| * Matches: 01-04 00:16:27.666 - Event [IFNAME=wlan0 CTRL-EVENT-SCAN-STARTED ] |
| */ |
| private static final Pattern WIFI_SCAN = Pattern.compile( |
| "^\\d+-\\d+ \\d+:\\d+:\\d+\\.\\d+ - Event \\[IFNAME=wlan0 CTRL-EVENT-SCAN-STARTED \\]"); |
| |
| /** |
| * Matches: 01-04 00:16:27.666 - Event [IFNAME=wlan0 CTRL-EVENT-DISCONNECTED |
| * bssid=6c:f3:7f:ae:89:92 reason=0 locally_generated=1] |
| */ |
| private static final Pattern WIFI_DISCONNECT = Pattern.compile( |
| "^\\d+-\\d+ \\d+:\\d+:\\d+\\.\\d+ - Event \\[IFNAME=wlan0 CTRL-EVENT-DISCONNECTED " |
| + "bssid=\\w+:\\w+:\\w+:\\w+:\\w+:\\w+ reason=\\d+(\\s*locally_generated=\\d+)?\\]"); |
| |
| /** |
| * {@inheritDoc} |
| * |
| * @return The {@link DumpsysWifiStatsItem}. |
| */ |
| @Override |
| public DumpsysWifiStatsItem parse(List<String> lines) { |
| DumpsysWifiStatsItem item = new DumpsysWifiStatsItem(); |
| int numWifiScans = 0; |
| int numWifiDisconnects = 0; |
| for (String line : lines) { |
| Matcher m = WIFI_SCAN.matcher(line); |
| if(m.matches()) { |
| numWifiScans++; |
| continue; |
| } |
| m = WIFI_DISCONNECT.matcher(line); |
| if (m.matches()) { |
| numWifiDisconnects++; |
| } |
| } |
| item.setNumWifiScan(numWifiScans); |
| item.setNumWifiDisconnect(numWifiDisconnects); |
| return item; |
| } |
| |
| } |