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      1 /*
      2  * Copyright (C) 2015 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 
     17 package com.android.preload;
     18 
     19 import java.util.Date;
     20 import java.util.HashMap;
     21 import java.util.HashSet;
     22 import java.util.Map;
     23 import java.util.Set;
     24 
     25 /**
     26  * Holds the collected data for a process.
     27  */
     28 public class DumpData {
     29     /**
     30      * Name of the package (=application).
     31      */
     32     String packageName;
     33 
     34     /**
     35      * A map of class name to a string for the classloader. This may be a toString equivalent,
     36      * or just a unique ID.
     37      */
     38     Map<String, String> dumpData;
     39 
     40     /**
     41      * The Date when this data was captured. Mostly for display purposes.
     42      */
     43     Date date;
     44 
     45     /**
     46      * A cached value for the number of boot classpath classes (classloader value in dumpData is
     47      * null).
     48      */
     49     int bcpClasses;
     50 
     51     public DumpData(String packageName, Map<String, String> dumpData, Date date) {
     52         this.packageName = packageName;
     53         this.dumpData = dumpData;
     54         this.date = date;
     55 
     56         countBootClassPath();
     57     }
     58 
     59     public String getPackageName() {
     60         return packageName;
     61     }
     62 
     63     public Date getDate() {
     64         return date;
     65     }
     66 
     67     public Map<String, String> getDumpData() {
     68         return dumpData;
     69     }
     70 
     71     public void countBootClassPath() {
     72         bcpClasses = 0;
     73         for (Map.Entry<String, String> e : dumpData.entrySet()) {
     74             if (e.getValue() == null) {
     75                 bcpClasses++;
     76             }
     77         }
     78     }
     79 
     80     // Return an inverted mapping.
     81     public Map<String, Set<String>> invertData() {
     82         Map<String, Set<String>> ret = new HashMap<>();
     83         for (Map.Entry<String, String> e : dumpData.entrySet()) {
     84             if (!ret.containsKey(e.getValue())) {
     85                 ret.put(e.getValue(), new HashSet<String>());
     86             }
     87             ret.get(e.getValue()).add(e.getKey());
     88         }
     89         return ret;
     90     }
     91 }