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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.dependencyfinder.cli.*;
45 import com.jeantessier.diff.*;
46
47 public class ClassClassDiff {
48 public static final String  DEFAULT_OLD_DOCUMENTATION = "old_documentation.txt";
49 public static final String DEFAULT_NEW_DOCUMENTATION = "new_documentation.txt";
50 public static final String DEFAULT_LOGFILE = "System.out";
51
52 public static void showError(CommandLineUsage clu, String msg) {
53 System.err.println(msg);
54 showError(clu);
55 }
56
57 public static void showError(CommandLineUsage clu) {
58 System.err.println(clu);
59 System.err.println();
60 System.err.println("Defaults is text output to the console.");
61 System.err.println();
62 }
63
64 public static void showVersion() throws IOException {
65 Version version = new Version();
66
67 System.err.print(version.getImplementationTitle());
68 System.err.print(" ");
69 System.err.print(version.getImplementationVersion());
70 System.err.print(" (c) ");
71 System.err.print(version.getCopyrightDate());
72 System.err.print(" ");
73 System.err.print(version.getCopyrightHolder());
74 System.err.println();
75
76 System.err.print(version.getImplementationURL());
77 System.err.println();
78
79 System.err.print("Compiled on ");
80 System.err.print(version.getImplementationDate());
81 System.err.println();
82 }
83
84 public static void main(String [] args) throws Exception {
85 CommandLine commandLine = new CommandLine(new NullParameterStrategy());
87 commandLine.addSingleValueSwitch("name");
88 commandLine.addMultipleValuesSwitch("old", true);
89 commandLine.addSingleValueSwitch("old-documentation", DEFAULT_OLD_DOCUMENTATION);
90 commandLine.addMultipleValuesSwitch("new", true);
91 commandLine.addSingleValueSwitch("new-documentation", DEFAULT_NEW_DOCUMENTATION);
92 commandLine.addSingleValueSwitch("encoding", Report.DEFAULT_ENCODING);
93 commandLine.addSingleValueSwitch("dtd-prefix", Report.DEFAULT_DTD_PREFIX);
94 commandLine.addSingleValueSwitch("indent-text");
95 commandLine.addToggleSwitch("time");
96 commandLine.addSingleValueSwitch("out");
97 commandLine.addToggleSwitch("help");
98 commandLine.addOptionalValueSwitch("verbose", DEFAULT_LOGFILE);
99 commandLine.addToggleSwitch("version");
100
101 CommandLineUsage usage = new CommandLineUsage("ClassClassDiff");
102 commandLine.accept(usage);
103
104 try {
105 commandLine.parse(args);
106 } catch (IllegalArgumentException ex) {
107 showError(usage, ex.toString());
108 System.exit(1);
109 } catch (CommandLineException ex) {
110 showError(usage, ex.toString());
111 System.exit(1);
112 }
113
114 if (commandLine.getToggleSwitch("help")) {
115 showError(usage);
116 }
117
118 if (commandLine.getToggleSwitch("version")) {
119 showVersion();
120 }
121
122 if (commandLine.getToggleSwitch("help") || commandLine.getToggleSwitch("version")) {
123 System.exit(1);
124 }
125
126 VerboseListener verboseListener = new VerboseListener();
127 if (commandLine.isPresent("verbose")) {
128 if ("System.out".equals(commandLine.getOptionalSwitch("verbose"))) {
129 verboseListener.setWriter(System.out);
130 } else {
131 verboseListener.setWriter(new FileWriter(commandLine.getOptionalSwitch("verbose")));
132 }
133 }
134
135
138
139 Date start = new Date();
140
141
144 Validator oldValidator = new ListBasedValidator(commandLine.getSingleSwitch("old-documentation"));
145 ClassfileLoader oldJar = new AggregatingClassfileLoader();
146 oldJar.addLoadListener(verboseListener);
147 oldJar.load(commandLine.getMultipleSwitch("old"));
148
149 Validator newValidator = new ListBasedValidator(commandLine.getSingleSwitch("new-documentation"));
150 ClassfileLoader newJar = new AggregatingClassfileLoader();
151 newJar.addLoadListener(verboseListener);
152 newJar.load(commandLine.getMultipleSwitch("new"));
153
154
158 Logger.getLogger(JarJarDiff.class).info("Comparing ...");
159 verboseListener.print("Comparing ...");
160
161 String name = commandLine.getSingleSwitch("name");
162 Classfile oldClass = (Classfile) oldJar.getAllClassfiles().iterator().next();
163 Classfile newClass = (Classfile) newJar.getAllClassfiles().iterator().next();
164
165 DifferencesFactory factory = new DifferencesFactory(oldValidator, newValidator);
166 Differences differences = factory.createClassDifferences(name, oldClass, newClass);
167
168 Logger.getLogger(JarJarDiff.class).info("Printing results ...");
169 verboseListener.print("Printing results ...");
170
171 PrintWriter out;
172 if (commandLine.isPresent("out")) {
173 out = new PrintWriter(new FileWriter(commandLine.getSingleSwitch("out")));
174 } else {
175 out = new PrintWriter(new OutputStreamWriter(System.out));
176 }
177
178 com.jeantessier.diff.Printer printer = new Report(commandLine.getSingleSwitch("encoding"), commandLine.getSingleSwitch("dtd-prefix"));
179 if (commandLine.isPresent("indent-text")) {
180 printer.setIndentText(commandLine.getSingleSwitch("indent-text"));
181 }
182
183 differences.accept(printer);
184 out.print(printer);
185
186 Date end = new Date();
187
188 if (commandLine.getToggleSwitch("time")) {
189 System.err.println(JarJarDiff.class.getName() + ": " + ((end.getTime() - (double) start.getTime()) / 1000) + " secs.");
190 }
191
192 out.close();
193
194 verboseListener.close();
195 }
196 }
197 |
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