|
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.commandline.*;
41 import com.jeantessier.dependencyfinder.*;
42 import com.jeantessier.diff.*;
43
44 public class ListDiff {
45 public static void showError(CommandLineUsage clu, String  msg) {
46 System.err.println(msg);
47 showError(clu);
48 }
49
50 public static void showError(CommandLineUsage clu) {
51 System.err.println(clu);
52 System.err.println();
53 System.err.println("Defaults is text output to the console.");
54 System.err.println();
55 }
56
57 public static void showVersion() throws IOException {
58 Version version = new Version();
59
60 System.err.print(version.getImplementationTitle());
61 System.err.print(" ");
62 System.err.print(version.getImplementationVersion());
63 System.err.print(" (c) ");
64 System.err.print(version.getCopyrightDate());
65 System.err.print(" ");
66 System.err.print(version.getCopyrightHolder());
67 System.err.println();
68
69 System.err.print(version.getImplementationURL());
70 System.err.println();
71
72 System.err.print("Compiled on ");
73 System.err.print(version.getImplementationDate());
74 System.err.println();
75 }
76
77 public static void main(String [] args) throws Exception {
78 CommandLine commandLine = new CommandLine(new NullParameterStrategy());
80 commandLine.addSingleValueSwitch("name");
81 commandLine.addSingleValueSwitch("old-label");
82 commandLine.addSingleValueSwitch("old", true);
83 commandLine.addSingleValueSwitch("new-label");
84 commandLine.addSingleValueSwitch("new", true);
85 commandLine.addToggleSwitch("compress");
86 commandLine.addSingleValueSwitch("encoding", ListDiffPrinter.DEFAULT_ENCODING);
87 commandLine.addSingleValueSwitch("dtd-prefix", ListDiffPrinter.DEFAULT_DTD_PREFIX);
88 commandLine.addSingleValueSwitch("indent-text");
89 commandLine.addToggleSwitch("time");
90 commandLine.addSingleValueSwitch("out");
91 commandLine.addToggleSwitch("help");
92 commandLine.addToggleSwitch("version");
93
94 CommandLineUsage usage = new CommandLineUsage("ListDiff");
95 commandLine.accept(usage);
96
97 try {
98 commandLine.parse(args);
99 } catch (IllegalArgumentException ex) {
100 showError(usage, ex.toString());
101 System.exit(1);
102 } catch (CommandLineException ex) {
103 showError(usage, ex.toString());
104 System.exit(1);
105 }
106
107 if (commandLine.getToggleSwitch("help")) {
108 showError(usage);
109 }
110
111 if (commandLine.getToggleSwitch("version")) {
112 showVersion();
113 }
114
115 if (commandLine.getToggleSwitch("help") || commandLine.getToggleSwitch("version")) {
116 System.exit(1);
117 }
118
119
122
123 Date start = new Date();
124
125 String line;
126
127 Logger.getLogger(ListDiff.class).info("Loading data ...");
128
129 Collection oldAPI = new TreeSet();
130 BufferedReader oldIn = new BufferedReader(new FileReader(commandLine.getSingleSwitch("old")));
131 while((line = oldIn.readLine()) != null) {
132 oldAPI.add(line);
133 }
134
135 Collection newAPI = new TreeSet();
136 BufferedReader newIn = new BufferedReader(new FileReader(commandLine.getSingleSwitch("new")));
137 while((line = newIn.readLine()) != null) {
138 newAPI.add(line);
139 }
140
141 ListDiffPrinter printer = new ListDiffPrinter(commandLine.getToggleSwitch("compress"), commandLine.getSingleSwitch("encoding"), commandLine.getSingleSwitch("dtd-prefix"));
142 printer.setName(commandLine.getSingleSwitch("name"));
143 printer.setOldVersion(commandLine.getSingleSwitch("old-label"));
144 printer.setNewVersion(commandLine.getSingleSwitch("new-label"));
145 if (commandLine.isPresent("indent-text")) {
146 printer.setIndentText(commandLine.getSingleSwitch("indent-text"));
147 }
148
149 Iterator i;
150
151 i = oldAPI.iterator();
152 while (i.hasNext()) {
153 line = (String ) i.next();
154 if (!newAPI.contains(line)) {
155 printer.remove(line);
156 }
157 }
158
159 i = newAPI.iterator();
160 while (i.hasNext()) {
161 line = (String ) i.next();
162 if (!oldAPI.contains(line)) {
163 printer.add(line);
164 }
165 }
166
167 Logger.getLogger(ListDiff.class).info("Printing results ...");
168
169 PrintWriter out;
170 if (commandLine.isPresent("out")) {
171 out = new PrintWriter(new FileWriter(commandLine.getSingleSwitch("out")));
172 } else {
173 out = new PrintWriter(new OutputStreamWriter(System.out));
174 }
175 out.print(printer);
176 out.close();
177
178 Date end = new Date();
179
180 if (commandLine.getToggleSwitch("time")) {
181 System.err.println(ListDiff.class.getName() + ": " + ((end.getTime() - (double) start.getTime()) / 1000) + " secs.");
182 }
183 }
184 }
185 |
Popular Tags |
Java API By Example, From Geeks To Geeks.