1/*
2 * Copyright (C) 2008 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
17import java.io.BufferedReader;
18import java.io.FileInputStream;
19import java.io.IOException;
20import java.io.InputStreamReader;
21import java.util.ArrayList;
22import java.util.List;
23
24/**
25 * Parses and analyzes a log, pulling our PRELOAD information. If you have
26 * an emulator or device running in the background, this class will use it
27 * to measure and record the memory usage of each class.
28 *
29 * TODO: Should analyze lines and select substring dynamically (instead of hardcoded 19)
30 */
31public class Compile {
32
33    public static void main(String[] args) throws IOException {
34        if (args.length != 2) {
35            System.err.println("Usage: Compile [log file] [output file]");
36            System.exit(0);
37        }
38
39        Root root = new Root();
40
41        List<Record> records = new ArrayList<Record>();
42
43        BufferedReader in = new BufferedReader(new InputStreamReader(
44                new FileInputStream(args[0])));
45
46        String line;
47        int lineNumber = 0;
48        while ((line = in.readLine()) != null) {
49            lineNumber++;
50            if (line.startsWith("I/PRELOAD")) {
51                try {
52                    String clipped = line.substring(19);
53                    records.add(new Record(clipped, lineNumber));
54                } catch (RuntimeException e) {
55                    throw new RuntimeException(
56                            "Exception while recording line " + lineNumber + ": " + line, e);
57                }
58            }
59        }
60
61        for (Record record : records) {
62            root.indexProcess(record);
63        }
64
65        for (Record record : records) {
66            root.indexClassOperation(record);
67        }
68
69        in.close();
70
71        root.toFile(args[1]);
72    }
73}
74