|
1
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 ClassFinder {
45 public static final String  DEFAULT_INCLUDES = "//";
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 }
59
60 public static void showVersion() throws IOException {
61 Version version = new Version();
62
63 System.err.print(version.getImplementationTitle());
64 System.err.print(" ");
65 System.err.print(version.getImplementationVersion());
66 System.err.print(" (c) ");
67 System.err.print(version.getCopyrightDate());
68 System.err.print(" ");
69 System.err.print(version.getCopyrightHolder());
70 System.err.println();
71
72 System.err.print(version.getImplementationURL());
73 System.err.println();
74
75 System.err.print("Compiled on ");
76 System.err.print(version.getImplementationDate());
77 System.err.println();
78 }
79
80 public static void main(String [] args) throws Exception {
81 CommandLine commandLine = new CommandLine();
83 commandLine.addMultipleValuesSwitch("includes", DEFAULT_INCLUDES);
84 commandLine.addMultipleValuesSwitch("excludes");
85 commandLine.addToggleSwitch("time");
86 commandLine.addSingleValueSwitch("out");
87 commandLine.addToggleSwitch("help");
88 commandLine.addOptionalValueSwitch("verbose", DEFAULT_LOGFILE);
89 commandLine.addToggleSwitch("version");
90
91 CommandLineUsage usage = new CommandLineUsage("ClassFinder");
92 commandLine.accept(usage);
93
94 try {
95 commandLine.parse(args);
96 } catch (IllegalArgumentException ex) {
97 showError(usage, ex.toString());
98 System.exit(1);
99 } catch (CommandLineException ex) {
100 showError(usage, ex.toString());
101 System.exit(1);
102 }
103
104 if (commandLine.getToggleSwitch("help")) {
105 showError(usage);
106 }
107
108 if (commandLine.getToggleSwitch("version")) {
109 showVersion();
110 }
111
112 if (commandLine.getToggleSwitch("help") || commandLine.getToggleSwitch("version")) {
113 System.exit(1);
114 }
115
116 VerboseListener verboseListener = new VerboseListener();
117 if (commandLine.isPresent("verbose")) {
118 if ("System.out".equals(commandLine.getOptionalSwitch("verbose"))) {
119 verboseListener.setWriter(System.out);
120 } else {
121 verboseListener.setWriter(new FileWriter(commandLine.getOptionalSwitch("verbose")));
122 }
123 }
124
125
128
129 Date start = new Date();
130
131 PrintWriter out;
132 if (commandLine.isPresent("out")) {
133 out = new PrintWriter(new FileWriter(commandLine.getSingleSwitch("out")));
134 } else {
135 out = new PrintWriter(new OutputStreamWriter(System.out));
136 }
137
138 List parameters = commandLine.getParameters();
139 if (parameters.size() == 0) {
140 parameters.add(".");
141 }
142
143 ClassMatcher matcher = new ClassMatcher(commandLine.getMultipleSwitch("includes"), commandLine.getMultipleSwitch("excludes"));
144
145 ClassfileLoader loader = new TransientClassfileLoader();
146 loader.addLoadListener(matcher);
147 loader.addLoadListener(verboseListener);
148 loader.load(parameters);
149
150 Iterator i = matcher.getResults().entrySet().iterator();
151 while (i.hasNext()) {
152 Map.Entry entry = (Map.Entry) i.next();
153 out.print(entry.getKey());
154 out.print(": ");
155
156 Iterator j = ((List) entry.getValue()).iterator();
157 while (j.hasNext()) {
158 out.print(j.next());
159 if (j.hasNext()) {
160 out.print(", ");
161 }
162 }
163
164 out.println();
165 }
166
167 Date end = new Date();
168
169 if (commandLine.getToggleSwitch("time")) {
170 System.err.println(ClassFinder.class.getName() + ": " + ((end.getTime() - (double) start.getTime()) / 1000) + " secs.");
171 }
172
173 out.close();
174
175 verboseListener.close();
176 }
177 }
178 |
Popular Tags |
Java API By Example, From Geeks To Geeks.