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32
33 package com.jeantessier.dependencyfinder.cli;
34
35 import java.io.*;
36 import java.util.*;
37
38 import org.apache.log4j.*;
39
40 import com.jeantessier.classreader.*;
41 import com.jeantessier.commandline.*;
42 import com.jeantessier.dependencyfinder.*;
43
44 public class ListSymbols {
45 public static final String  DEFAULT_LOGFILE = "System.out";
46
47 public static void showError(CommandLineUsage clu, String msg) {
48 System.err.println(msg);
49 showError(clu);
50 }
51
52 public static void showError(CommandLineUsage clu) {
53 System.err.println(clu);
54 System.err.println();
55 System.err.println("If no files are specified, it processes the current directory.");
56 System.err.println();
57 }
58
59 public static void showVersion() throws IOException {
60 Version version = new Version();
61
62 System.err.print(version.getImplementationTitle());
63 System.err.print(" ");
64 System.err.print(version.getImplementationVersion());
65 System.err.print(" (c) ");
66 System.err.print(version.getCopyrightDate());
67 System.err.print(" ");
68 System.err.print(version.getCopyrightHolder());
69 System.err.println();
70
71 System.err.print(version.getImplementationURL());
72 System.err.println();
73
74 System.err.print("Compiled on ");
75 System.err.print(version.getImplementationDate());
76 System.err.println();
77 }
78
79 public static void main(String [] args) throws Exception {
80 CommandLine commandLine = new CommandLine();
82 commandLine.addToggleSwitch("class-names");
83 commandLine.addToggleSwitch("field-names");
84 commandLine.addToggleSwitch("method-names");
85 commandLine.addToggleSwitch("local-names");
86 commandLine.addToggleSwitch("time");
87 commandLine.addSingleValueSwitch("out");
88 commandLine.addToggleSwitch("help");
89 commandLine.addOptionalValueSwitch("verbose", DEFAULT_LOGFILE);
90 commandLine.addToggleSwitch("version");
91
92 CommandLineUsage usage = new CommandLineUsage("ListSymbols");
93 commandLine.accept(usage);
94
95 try {
96 commandLine.parse(args);
97 } catch (IllegalArgumentException ex) {
98 showError(usage, ex.toString());
99 System.exit(1);
100 } catch (CommandLineException ex) {
101 showError(usage, ex.toString());
102 System.exit(1);
103 }
104
105 if (commandLine.getToggleSwitch("help")) {
106 showError(usage);
107 }
108
109 if (commandLine.getToggleSwitch("version")) {
110 showVersion();
111 }
112
113 if (commandLine.getToggleSwitch("help") || commandLine.getToggleSwitch("version")) {
114 System.exit(1);
115 }
116
117 VerboseListener verboseListener = new VerboseListener();
118 if (commandLine.isPresent("verbose")) {
119 if ("System.out".equals(commandLine.getOptionalSwitch("verbose"))) {
120 verboseListener.setWriter(System.out);
121 } else {
122 verboseListener.setWriter(new FileWriter(commandLine.getOptionalSwitch("verbose")));
123 }
124 }
125
126
129
130 Date start = new Date();
131
132 List parameters = commandLine.getParameters();
133 if (parameters.size() == 0) {
134 parameters.add(".");
135 }
136
137 SymbolGatherer collector = new SymbolGatherer();
138
139 if (commandLine.isPresent("class-names") || commandLine.isPresent("field-names") || commandLine.isPresent("method-names") || commandLine.isPresent("local-names")) {
146 collector.setCollectingClassNames(false);
147 collector.setCollectingFieldNames(false);
148 collector.setCollectingMethodNames(false);
149 collector.setCollectingLocalNames(false);
150 }
151
152 if (commandLine.isPresent("class-names")) {
153 collector.setCollectingClassNames(true);
154 }
155
156 if (commandLine.isPresent("field-names")) {
157 collector.setCollectingFieldNames(true);
158 }
159
160 if (commandLine.isPresent("method-names")) {
161 collector.setCollectingMethodNames(true);
162 }
163
164 if (commandLine.isPresent("local-names")) {
165 collector.setCollectingLocalNames(true);
166 }
167
168 ClassfileLoader loader = new TransientClassfileLoader();
169 loader.addLoadListener(new LoadListenerVisitorAdapter(collector));
170 loader.addLoadListener(verboseListener);
171 loader.load(parameters);
172
173 PrintWriter out;
174 if (commandLine.isPresent("out")) {
175 out = new PrintWriter(new FileWriter(commandLine.getSingleSwitch("out")));
176 } else {
177 out = new PrintWriter(new OutputStreamWriter(System.out));
178 }
179
180 Iterator i = collector.getCollection().iterator();
181 while (i.hasNext()) {
182 out.println(i.next());
183 }
184
185 Date end = new Date();
186
187 if (commandLine.getToggleSwitch("time")) {
188 System.err.println(ListSymbols.class.getName() + ": " + ((end.getTime() - (double) start.getTime()) / 1000) + " secs.");
189 }
190
191 out.close();
192
193 verboseListener.close();
194 }
195 }
196 |
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