Thu, 15 Nov 2012 09:18:36 -0800
8000800: javadoc uses static non-final fields
Reviewed-by: bpatel
1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.tools.javadoc;
28 import java.io.PrintWriter; // Access to 'javac' output streams
29 import java.text.MessageFormat;
30 import java.util.MissingResourceException;
31 import java.util.ResourceBundle;
33 import com.sun.javadoc.*;
34 import com.sun.tools.javac.util.Context;
35 import com.sun.tools.javac.util.Log;
37 /**
38 * Utility for integrating with javadoc tools and for localization.
39 * Handle Resources. Access to error and warning counts.
40 * Message formatting.
41 * <br>
42 * Also provides implementation for DocErrorReporter.
43 *
44 * <p><b>This is NOT part of any supported API.
45 * If you write code that depends on this, you do so at your own risk.
46 * This code and its internal interfaces are subject to change or
47 * deletion without notice.</b>
48 *
49 * @see java.util.ResourceBundle
50 * @see java.text.MessageFormat
51 * @author Neal Gafter (rewrite)
52 */
53 public class Messager extends Log implements DocErrorReporter {
55 /** Get the current messager, which is also the compiler log. */
56 public static Messager instance0(Context context) {
57 Log instance = context.get(logKey);
58 if (instance == null || !(instance instanceof Messager))
59 throw new InternalError("no messager instance!");
60 return (Messager)instance;
61 }
63 public static void preRegister(Context context,
64 final String programName) {
65 context.put(logKey, new Context.Factory<Log>() {
66 public Log make(Context c) {
67 return new Messager(c,
68 programName);
69 }
70 });
71 }
72 public static void preRegister(Context context,
73 final String programName,
74 final PrintWriter errWriter,
75 final PrintWriter warnWriter,
76 final PrintWriter noticeWriter) {
77 context.put(logKey, new Context.Factory<Log>() {
78 public Log make(Context c) {
79 return new Messager(c,
80 programName,
81 errWriter,
82 warnWriter,
83 noticeWriter);
84 }
85 });
86 }
88 public class ExitJavadoc extends Error {
89 private static final long serialVersionUID = 0;
90 }
92 final String programName;
94 private ResourceBundle messageRB = null;
96 /** The default writer for diagnostics
97 */
98 static final PrintWriter defaultErrWriter = new PrintWriter(System.err);
99 static final PrintWriter defaultWarnWriter = new PrintWriter(System.err);
100 static final PrintWriter defaultNoticeWriter = new PrintWriter(System.out);
102 /**
103 * Constructor
104 * @param programName Name of the program (for error messages).
105 */
106 protected Messager(Context context, String programName) {
107 this(context, programName, defaultErrWriter, defaultWarnWriter, defaultNoticeWriter);
108 }
110 /**
111 * Constructor
112 * @param programName Name of the program (for error messages).
113 * @param errWriter Stream for error messages
114 * @param warnWriter Stream for warnings
115 * @param noticeWriter Stream for other messages
116 */
117 @SuppressWarnings("deprecation")
118 protected Messager(Context context,
119 String programName,
120 PrintWriter errWriter,
121 PrintWriter warnWriter,
122 PrintWriter noticeWriter) {
123 super(context, errWriter, warnWriter, noticeWriter);
124 this.programName = programName;
125 }
127 @Override
128 protected int getDefaultMaxErrors() {
129 return Integer.MAX_VALUE;
130 }
132 @Override
133 protected int getDefaultMaxWarnings() {
134 return Integer.MAX_VALUE;
135 }
137 /**
138 * Reset resource bundle, eg. locale has changed.
139 */
140 public void reset() {
141 messageRB = null;
142 }
144 /**
145 * Get string from ResourceBundle, initialize ResourceBundle
146 * if needed.
147 */
148 private String getString(String key) {
149 if (messageRB == null) {
150 try {
151 messageRB = ResourceBundle.getBundle(
152 "com.sun.tools.javadoc.resources.javadoc");
153 } catch (MissingResourceException e) {
154 throw new Error("Fatal: Resource for javadoc is missing");
155 }
156 }
157 return messageRB.getString(key);
158 }
160 /**
161 * get and format message string from resource
162 *
163 * @param key selects message from resource
164 */
165 String getText(String key) {
166 return getText(key, (String)null);
167 }
169 /**
170 * get and format message string from resource
171 *
172 * @param key selects message from resource
173 * @param a1 first argument
174 */
175 String getText(String key, String a1) {
176 return getText(key, a1, null);
177 }
179 /**
180 * get and format message string from resource
181 *
182 * @param key selects message from resource
183 * @param a1 first argument
184 * @param a2 second argument
185 */
186 String getText(String key, String a1, String a2) {
187 return getText(key, a1, a2, null);
188 }
190 /**
191 * get and format message string from resource
192 *
193 * @param key selects message from resource
194 * @param a1 first argument
195 * @param a2 second argument
196 * @param a3 third argument
197 */
198 String getText(String key, String a1, String a2, String a3) {
199 return getText(key, a1, a2, a3, null);
200 }
202 /**
203 * get and format message string from resource
204 *
205 * @param key selects message from resource
206 * @param a1 first argument
207 * @param a2 second argument
208 * @param a3 third argument
209 * @param a4 fourth argument
210 */
211 String getText(String key, String a1, String a2, String a3,
212 String a4) {
213 try {
214 String message = getString(key);
215 String[] args = new String[4];
216 args[0] = a1;
217 args[1] = a2;
218 args[2] = a3;
219 args[3] = a4;
220 return MessageFormat.format(message, (Object[])args);
221 } catch (MissingResourceException e) {
222 return "********** Resource for javadoc is broken. There is no " +
223 key + " key in resource.";
224 }
225 }
227 /**
228 * Print error message, increment error count.
229 * Part of DocErrorReporter.
230 *
231 * @param msg message to print
232 */
233 public void printError(String msg) {
234 printError(null, msg);
235 }
237 /**
238 * Print error message, increment error count.
239 * Part of DocErrorReporter.
240 *
241 * @param pos the position where the error occurs
242 * @param msg message to print
243 */
244 public void printError(SourcePosition pos, String msg) {
245 if (nerrors < MaxErrors) {
246 String prefix = (pos == null) ? programName : pos.toString();
247 errWriter.println(prefix + ": " + getText("javadoc.error") + " - " + msg);
248 errWriter.flush();
249 prompt();
250 nerrors++;
251 }
252 }
254 /**
255 * Print warning message, increment warning count.
256 * Part of DocErrorReporter.
257 *
258 * @param msg message to print
259 */
260 public void printWarning(String msg) {
261 printWarning(null, msg);
262 }
264 /**
265 * Print warning message, increment warning count.
266 * Part of DocErrorReporter.
267 *
268 * @param pos the position where the error occurs
269 * @param msg message to print
270 */
271 public void printWarning(SourcePosition pos, String msg) {
272 if (nwarnings < MaxWarnings) {
273 String prefix = (pos == null) ? programName : pos.toString();
274 warnWriter.println(prefix + ": " + getText("javadoc.warning") +" - " + msg);
275 warnWriter.flush();
276 nwarnings++;
277 }
278 }
280 /**
281 * Print a message.
282 * Part of DocErrorReporter.
283 *
284 * @param msg message to print
285 */
286 public void printNotice(String msg) {
287 printNotice(null, msg);
288 }
290 /**
291 * Print a message.
292 * Part of DocErrorReporter.
293 *
294 * @param pos the position where the error occurs
295 * @param msg message to print
296 */
297 public void printNotice(SourcePosition pos, String msg) {
298 if (pos == null)
299 noticeWriter.println(msg);
300 else
301 noticeWriter.println(pos + ": " + msg);
302 noticeWriter.flush();
303 }
305 /**
306 * Print error message, increment error count.
307 *
308 * @param key selects message from resource
309 */
310 public void error(SourcePosition pos, String key) {
311 printError(pos, getText(key));
312 }
314 /**
315 * Print error message, increment error count.
316 *
317 * @param key selects message from resource
318 * @param a1 first argument
319 */
320 public void error(SourcePosition pos, String key, String a1) {
321 printError(pos, getText(key, a1));
322 }
324 /**
325 * Print error message, increment error count.
326 *
327 * @param key selects message from resource
328 * @param a1 first argument
329 * @param a2 second argument
330 */
331 public void error(SourcePosition pos, String key, String a1, String a2) {
332 printError(pos, getText(key, a1, a2));
333 }
335 /**
336 * Print error message, increment error count.
337 *
338 * @param key selects message from resource
339 * @param a1 first argument
340 * @param a2 second argument
341 * @param a3 third argument
342 */
343 public void error(SourcePosition pos, String key, String a1, String a2, String a3) {
344 printError(pos, getText(key, a1, a2, a3));
345 }
347 /**
348 * Print warning message, increment warning count.
349 *
350 * @param key selects message from resource
351 */
352 public void warning(SourcePosition pos, String key) {
353 printWarning(pos, getText(key));
354 }
356 /**
357 * Print warning message, increment warning count.
358 *
359 * @param key selects message from resource
360 * @param a1 first argument
361 */
362 public void warning(SourcePosition pos, String key, String a1) {
363 printWarning(pos, getText(key, a1));
364 }
366 /**
367 * Print warning message, increment warning count.
368 *
369 * @param key selects message from resource
370 * @param a1 first argument
371 * @param a2 second argument
372 */
373 public void warning(SourcePosition pos, String key, String a1, String a2) {
374 printWarning(pos, getText(key, a1, a2));
375 }
377 /**
378 * Print warning message, increment warning count.
379 *
380 * @param key selects message from resource
381 * @param a1 first argument
382 * @param a2 second argument
383 * @param a3 third argument
384 */
385 public void warning(SourcePosition pos, String key, String a1, String a2, String a3) {
386 printWarning(pos, getText(key, a1, a2, a3));
387 }
389 /**
390 * Print warning message, increment warning count.
391 *
392 * @param key selects message from resource
393 * @param a1 first argument
394 * @param a2 second argument
395 * @param a3 third argument
396 */
397 public void warning(SourcePosition pos, String key, String a1, String a2, String a3,
398 String a4) {
399 printWarning(pos, getText(key, a1, a2, a3, a4));
400 }
402 /**
403 * Print a message.
404 *
405 * @param key selects message from resource
406 */
407 public void notice(String key) {
408 printNotice(getText(key));
409 }
411 /**
412 * Print a message.
413 *
414 * @param key selects message from resource
415 * @param a1 first argument
416 */
417 public void notice(String key, String a1) {
418 printNotice(getText(key, a1));
419 }
421 /**
422 * Print a message.
423 *
424 * @param key selects message from resource
425 * @param a1 first argument
426 * @param a2 second argument
427 */
428 public void notice(String key, String a1, String a2) {
429 printNotice(getText(key, a1, a2));
430 }
432 /**
433 * Print a message.
434 *
435 * @param key selects message from resource
436 * @param a1 first argument
437 * @param a2 second argument
438 * @param a3 third argument
439 */
440 public void notice(String key, String a1, String a2, String a3) {
441 printNotice(getText(key, a1, a2, a3));
442 }
444 /**
445 * Return total number of errors, including those recorded
446 * in the compilation log.
447 */
448 public int nerrors() { return nerrors; }
450 /**
451 * Return total number of warnings, including those recorded
452 * in the compilation log.
453 */
454 public int nwarnings() { return nwarnings; }
456 /**
457 * Print exit message.
458 */
459 public void exitNotice() {
460 if (nerrors > 0) {
461 notice((nerrors > 1) ? "main.errors" : "main.error",
462 "" + nerrors);
463 }
464 if (nwarnings > 0) {
465 notice((nwarnings > 1) ? "main.warnings" : "main.warning",
466 "" + nwarnings);
467 }
468 }
470 /**
471 * Force program exit, e.g., from a fatal error.
472 * <p>
473 * TODO: This method does not really belong here.
474 */
475 public void exit() {
476 throw new ExitJavadoc();
477 }
479 }