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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.dependency.*;
43 import com.jeantessier.dependencyfinder.*;
44
45 public class DependencyExtractor {
46 public static final String  DEFAULT_LOGFILE = "System.out";
47
48 public static void showError(CommandLineUsage clu, String msg) {
49 System.err.println(msg);
50 showError(clu);
51 }
52
53 public static void showError(CommandLineUsage clu) {
54 System.err.println(clu);
55 System.err.println();
56 System.err.println("If no files are specified, it processes the current directory.");
57 System.err.println();
58 System.err.println("If file is a directory, it is recusively scanned for files");
59 System.err.println("ending in \".class\".");
60 System.err.println();
61 System.err.println("Defaults is text output to the console.");
62 System.err.println();
63 }
64
65 public static void showVersion() throws IOException {
66 Version version = new Version();
67
68 System.err.print(version.getImplementationTitle());
69 System.err.print(" ");
70 System.err.print(version.getImplementationVersion());
71 System.err.print(" (c) ");
72 System.err.print(version.getCopyrightDate());
73 System.err.print(" ");
74 System.err.print(version.getCopyrightHolder());
75 System.err.println();
76
77 System.err.print(version.getImplementationURL());
78 System.err.println();
79
80 System.err.print("Compiled on ");
81 System.err.print(version.getImplementationDate());
82 System.err.println();
83 }
84
85 public static void main(String [] args) throws Exception {
86 CommandLine commandLine = new CommandLine();
88 commandLine.addToggleSwitch("xml");
89 commandLine.addToggleSwitch("maximize");
90 commandLine.addToggleSwitch("minimize");
91 commandLine.addSingleValueSwitch("encoding", com.jeantessier.dependency.XMLPrinter.DEFAULT_ENCODING);
92 commandLine.addSingleValueSwitch("dtd-prefix", com.jeantessier.dependency.XMLPrinter.DEFAULT_DTD_PREFIX);
93 commandLine.addSingleValueSwitch("indent-text");
94 commandLine.addToggleSwitch("time");
95 commandLine.addSingleValueSwitch("out");
96 commandLine.addToggleSwitch("help");
97 commandLine.addOptionalValueSwitch("verbose", DEFAULT_LOGFILE);
98 commandLine.addToggleSwitch("version");
99
100 CommandLineUsage usage = new CommandLineUsage("DependencyExtractor");
101 commandLine.accept(usage);
102
103 try {
104 commandLine.parse(args);
105 } catch (IllegalArgumentException ex) {
106 showError(usage, ex.toString());
107 System.exit(1);
108 } catch (CommandLineException ex) {
109 showError(usage, ex.toString());
110 System.exit(1);
111 }
112
113 if (commandLine.getToggleSwitch("help")) {
114 showError(usage);
115 }
116
117 if (commandLine.getToggleSwitch("version")) {
118 showVersion();
119 }
120
121 if (commandLine.getToggleSwitch("help") || commandLine.getToggleSwitch("version")) {
122 System.exit(1);
123 }
124
125 VerboseListener verboseListener = new VerboseListener();
126 if (commandLine.isPresent("verbose")) {
127 if ("System.out".equals(commandLine.getOptionalSwitch("verbose"))) {
128 verboseListener.setWriter(System.out);
129 } else {
130 verboseListener.setWriter(new FileWriter(commandLine.getOptionalSwitch("verbose")));
131 }
132 }
133
134
137
138 Date start = new Date();
139
140 List parameters = commandLine.getParameters();
141 if (parameters.size() == 0) {
142 parameters.add(".");
143 }
144
145 NodeFactory factory = new NodeFactory();
146 CodeDependencyCollector collector = new CodeDependencyCollector(factory);
147
148 ClassfileLoader loader = new TransientClassfileLoader();
149 loader.addLoadListener(new LoadListenerVisitorAdapter(collector));
150 loader.addLoadListener(verboseListener);
151 loader.load(parameters);
152
153 if (commandLine.isPresent("minimize")) {
154 LinkMinimizer minimizer = new LinkMinimizer();
155 minimizer.traverseNodes(factory.getPackages().values());
156 } else if (commandLine.isPresent("maximize")) {
157 LinkMaximizer maximizer = new LinkMaximizer();
158 maximizer.traverseNodes(factory.getPackages().values());
159 }
160
161 verboseListener.print("Printing the graph ...");
162
163 PrintWriter out;
164 if (commandLine.isPresent("out")) {
165 out = new PrintWriter(new FileWriter(commandLine.getSingleSwitch("out")));
166 } else {
167 out = new PrintWriter(System.out);
168 }
169
170 com.jeantessier.dependency.Printer printer;
171 if (commandLine.getToggleSwitch("xml")) {
172 printer = new com.jeantessier.dependency.XMLPrinter(out, commandLine.getSingleSwitch("encoding"), commandLine.getSingleSwitch("dtd-prefix"));
173 } else {
174 printer = new com.jeantessier.dependency.TextPrinter(out);
175 }
176
177 if (commandLine.isPresent("indent-text")) {
178 printer.setIndentText(commandLine.getSingleSwitch("indent-text"));
179 }
180
181 printer.traverseNodes(factory.getPackages().values());
182
183 out.close();
184
185 Date end = new Date();
186
187 if (commandLine.getToggleSwitch("time")) {
188 System.err.println(DependencyExtractor.class.getName() + ": " + ((end.getTime() - (double) start.getTime()) / 1000) + " secs.");
189 }
190
191 verboseListener.close();
192 }
193 }
194 |
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