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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.dependency.*;
43 import com.jeantessier.dependencyfinder.*;
44 import com.jeantessier.diff.*;
45
46 public class JarJarDiff {
47 public static final String  DEFAULT_OLD_DOCUMENTATION = "old_documentation.txt";
48 public static final String DEFAULT_NEW_DOCUMENTATION = "new_documentation.txt";
49 public static final String DEFAULT_LOGFILE = "System.out";
50
51 public static void showError(CommandLineUsage clu, String msg) {
52 System.err.println(msg);
53 showError(clu);
54 }
55
56 public static void showError(CommandLineUsage clu) {
57 System.err.println(clu);
58 System.err.println();
59 System.err.println("Defaults is text output to the console.");
60 System.err.println();
61 }
62
63 public static void showVersion() throws IOException {
64 Version version = new Version();
65
66 System.err.print(version.getImplementationTitle());
67 System.err.print(" ");
68 System.err.print(version.getImplementationVersion());
69 System.err.print(" (c) ");
70 System.err.print(version.getCopyrightDate());
71 System.err.print(" ");
72 System.err.print(version.getCopyrightHolder());
73 System.err.println();
74
75 System.err.print(version.getImplementationURL());
76 System.err.println();
77
78 System.err.print("Compiled on ");
79 System.err.print(version.getImplementationDate());
80 System.err.println();
81 }
82
83 public static void main(String [] args) throws Exception {
84 CommandLine commandLine = new CommandLine(new NullParameterStrategy());
86 commandLine.addSingleValueSwitch("name");
87 commandLine.addMultipleValuesSwitch("old", true);
88 commandLine.addSingleValueSwitch("old-label");
89 commandLine.addSingleValueSwitch("old-documentation", DEFAULT_OLD_DOCUMENTATION);
90 commandLine.addMultipleValuesSwitch("new", true);
91 commandLine.addSingleValueSwitch("new-label");
92 commandLine.addSingleValueSwitch("new-documentation", DEFAULT_NEW_DOCUMENTATION);
93 commandLine.addSingleValueSwitch("encoding", Report.DEFAULT_ENCODING);
94 commandLine.addSingleValueSwitch("dtd-prefix", Report.DEFAULT_DTD_PREFIX);
95 commandLine.addSingleValueSwitch("indent-text");
96 commandLine.addToggleSwitch("time");
97 commandLine.addSingleValueSwitch("out");
98 commandLine.addToggleSwitch("help");
99 commandLine.addOptionalValueSwitch("verbose", DEFAULT_LOGFILE);
100 commandLine.addToggleSwitch("version");
101
102 CommandLineUsage usage = new CommandLineUsage("JarJarDiff");
103 commandLine.accept(usage);
104
105 try {
106 commandLine.parse(args);
107 } catch (IllegalArgumentException ex) {
108 showError(usage, ex.toString());
109 System.exit(1);
110 } catch (CommandLineException ex) {
111 showError(usage, ex.toString());
112 System.exit(1);
113 }
114
115 if (commandLine.getToggleSwitch("help")) {
116 showError(usage);
117 }
118
119 if (commandLine.getToggleSwitch("version")) {
120 showVersion();
121 }
122
123 if (commandLine.getToggleSwitch("help") || commandLine.getToggleSwitch("version")) {
124 System.exit(1);
125 }
126
127 VerboseListener verboseListener = new VerboseListener();
128 if (commandLine.isPresent("verbose")) {
129 if ("System.out".equals(commandLine.getOptionalSwitch("verbose"))) {
130 verboseListener.setWriter(System.out);
131 } else {
132 verboseListener.setWriter(new FileWriter(commandLine.getOptionalSwitch("verbose")));
133 }
134 }
135
136
139
140 Date start = new Date();
141
142
145 Validator oldValidator = new ListBasedValidator(commandLine.getSingleSwitch("old-documentation"));
146 ClassfileLoader oldJar = new AggregatingClassfileLoader();
147 oldJar.addLoadListener(verboseListener);
148 oldJar.load(commandLine.getMultipleSwitch("old"));
149
150 Validator newValidator = new ListBasedValidator(commandLine.getSingleSwitch("new-documentation"));
151 ClassfileLoader newJar = new AggregatingClassfileLoader();
152 newJar.addLoadListener(verboseListener);
153 newJar.load(commandLine.getMultipleSwitch("new"));
154
155
159 Logger.getLogger(JarJarDiff.class).info("Comparing ...");
160 verboseListener.print("Comparing ...");
161
162 String name = commandLine.getSingleSwitch("name");
163 String oldLabel = commandLine.isPresent("old-label") ? commandLine.getSingleSwitch("old-label") : commandLine.getSwitch("old").toString();
164 String newLabel = commandLine.isPresent("new-label") ? commandLine.getSingleSwitch("new-label") : commandLine.getSwitch("new").toString();
165
166 DifferencesFactory factory = new DifferencesFactory(oldValidator, newValidator);
167 Differences differences = factory.createJarDifferences(name, oldLabel, oldJar, newLabel, newJar);
168
169 Logger.getLogger(JarJarDiff.class).info("Printing results ...");
170 verboseListener.print("Printing results ...");
171
172 PrintWriter out;
173 if (commandLine.isPresent("out")) {
174 out = new PrintWriter(new FileWriter(commandLine.getSingleSwitch("out")));
175 } else {
176 out = new PrintWriter(new OutputStreamWriter(System.out));
177 }
178
179 com.jeantessier.diff.Printer printer = new Report(commandLine.getSingleSwitch("encoding"), commandLine.getSingleSwitch("dtd-prefix"));
180 if (commandLine.isPresent("indent-text")) {
181 printer.setIndentText(commandLine.getSingleSwitch("indent-text"));
182 }
183
184 differences.accept(printer);
185 out.print(printer);
186
187 Date end = new Date();
188
189 if (commandLine.getToggleSwitch("time")) {
190 System.err.println(JarJarDiff.class.getName() + ": " + ((end.getTime() - (double) start.getTime()) / 1000) + " secs.");
191 }
192
193 out.close();
194
195 verboseListener.close();
196 }
197 }
198 |
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