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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.loganalysis.parser;
     17 
     18 import com.android.loganalysis.item.LocationDumpsItem;
     19 import com.android.loganalysis.util.NumberFormattingUtil;
     20 
     21 import java.util.List;
     22 import java.util.regex.Matcher;
     23 import java.util.regex.Pattern;
     24 
     25 /**
     26  * A {@link IParser} to handle the parsing of location request information
     27  */
     28 public class LocationServiceParser implements IParser {
     29     /**
     30      * Match a valid line such as:
     31      * "Interval effective/min/max 1/0/0[s] Duration: 140[minutes] [com.google.android.gms,
     32      * PRIORITY_NO_POWER, UserLocationProducer] Num requests: 2 Active: true"
     33      */
     34     private static final Pattern LOCATION_PAT = Pattern.compile(
     35             "^\\s*Interval effective/min/max (\\d+)/(\\d+)/(\\d+)\\[s\\] Duration: (\\d+)"
     36             + "\\[minutes\\]\\s*\\[([\\w.]+), (\\w+)(,.*)?\\] Num requests: \\d+ Active: \\w*");
     37 
     38     private LocationDumpsItem mItem = new LocationDumpsItem();
     39 
     40     /**
     41      * {@inheritDoc}
     42      */
     43     @Override
     44     public LocationDumpsItem parse(List<String> lines) {
     45         Matcher m = null;
     46         for (String line : lines) {
     47             m = LOCATION_PAT.matcher(line);
     48             if (m.matches()) {
     49                 mItem.addLocationClient(m.group(5), NumberFormattingUtil.parseIntOrZero(m.group(1)),
     50                         NumberFormattingUtil.parseIntOrZero(m.group(2)),
     51                         NumberFormattingUtil.parseIntOrZero(m.group(3)), m.group(6),
     52                         NumberFormattingUtil.parseIntOrZero(m.group(4)));
     53                 continue;
     54             }
     55         }
     56         return mItem;
     57     }
     58 
     59     /**
     60      * Get the {@link LocationDumpsItem}.
     61      * <p>
     62      * Exposed for unit testing.
     63      * </p>
     64      */
     65     LocationDumpsItem getItem() {
     66         return mItem;
     67     }
     68 }
     69