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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 
17 package com.android.bugreport;
18 
19 import com.android.bugreport.util.ArgParser;
20 
21 import java.io.File;
22 
23 /**
24  * Class to encapsulate the command line arguments.
25  */
26 public class Options {
27     /**
28      * The original raw args array.
29      */
30     public String[] args;
31 
32     /**
33      * If there was an error parsing, the index into the args array that
34      * had the error.
35      *
36      * Will be -1 if there was no error.
37      */
38     public int errorIndex;
39 
40     /**
41      * Human readable description of the problem encountered while parsing.
42      *
43      * Will be null if there was no error.
44      */
45     public String errorText;
46 
47     /**
48      * The bugreport file to parse.
49      */
50     public File bugreport;
51 
52     /**
53      * The monkey log file to parse.
54      *
55      * Will be used instead of searching the logcat for the problem.
56      */
57     public File monkey;
58 
59     /**
60      * The logcat file to parse.
61      *
62      * Will be used instead of the "SYSTEM LOG" section of the bugreport.
63      */
64     public File logcat;
65 
66     /**
67      * The html file to output.
68      */
69     public File html;
70 
71     /**
72      * Parse the arguments.
73      *
74      * Always returns an Options object.  It will either be a correctly formed one
75      * with all the arguments, or one with nothing set except for the args, errorText
76      * and errorIndex fields.
77      */
parseArgs(String[] args)78     public static Options parseArgs(String[] args) {
79         final Options result = new Options(args);
80 
81         String flag;
82         final ArgParser argParser = new ArgParser(args);
83         while ((flag = argParser.nextFlag()) != null) {
84             if ("--monkey".equals(flag)) {
85                 if (result.monkey != null || !argParser.hasData(1)) {
86                     return new Options(args, argParser.pos(),
87                             "--monkey flag requires an argument");
88                 }
89                 result.monkey = new File(argParser.nextData());
90             } else if ("--html".equals(flag)) {
91                 if (result.html != null || !argParser.hasData(1)) {
92                     return new Options(args, argParser.pos(),
93                             "--html flag requires an argument");
94                 }
95                 result.html = new File(argParser.nextData());
96             } else if ("--logcat".equals(flag)) {
97                 if (result.logcat != null || !argParser.hasData(1)) {
98                     return new Options(args, argParser.pos(),
99                             "--logcat flag requires an argument");
100                 }
101                 result.logcat = new File(argParser.nextData());
102             } else {
103                 return new Options(args, argParser.pos(),
104                         "Unknown flag: " + flag);
105             }
106         }
107         if ((!argParser.hasData(1)) || argParser.remaining() != 1) {
108             return new Options(args, argParser.pos(),
109                     "bugreport file name required");
110         }
111         result.bugreport = new File(argParser.nextData());
112 
113         return result;
114     }
115 
116     /**
117      * Construct a "successful" Options object.
118      */
Options(String[] args)119     private Options(String[] args) {
120         this.args = args;
121         this.errorIndex = -1;
122     }
123 
124     /**
125      * Construct an error Options object.
126      */
Options(String[] args, int errorIndex, String errorText)127     private Options(String[] args, int errorIndex, String errorText) {
128         this.args = args;
129         this.errorIndex = errorIndex;
130         this.errorText = errorText;
131     }
132 }
133 
134 
135 
136