/*
* Copyright (c) 1997, 2004, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.javadoc;
import java.io.PrintWriter;
import java.text.MessageFormat;
import java.util.ResourceBundle;
import java.util.MissingResourceException;
import com.sun.javadoc.*;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Log; // Access to 'javac' output streams
/**
* Utility for integrating with javadoc tools and for localization.
* Handle Resources. Access to error and warning counts.
* Message formatting.
* <br>
* Also provides implementation for DocErrorReporter.
*
* @see java.util.ResourceBundle
* @see java.text.MessageFormat
* @author Neal Gafter (rewrite)
*/
public class Messager extends Log implements DocErrorReporter {
/** Get the current messager, which is also the compiler log. */
public static Messager instance0(Context context) {
Log instance = context.get(logKey);
if (instance == null || !(instance instanceof Messager))
throw new InternalError("no messager instance!");
return (Messager)instance;
}
public static void preRegister(final Context context,
final String programName) {
context.put(logKey, new Context.Factory<Log>() {
public Log make() {
return new Messager(context,
programName);
}
});
}
public static void preRegister(final Context context,
final String programName,
final PrintWriter errWriter,
final PrintWriter warnWriter,
final PrintWriter noticeWriter) {
context.put(logKey, new Context.Factory<Log>() {
public Log make() {
return new Messager(context,
programName,
errWriter,
warnWriter,
noticeWriter);
}
});
}
public class ExitJavadoc extends Error {
private static final long serialVersionUID = 0;
}
private final String programName;
private ResourceBundle messageRB = null;
/** The default writer for diagnostics
*/
static final PrintWriter defaultErrWriter = new PrintWriter(System.err);
static final PrintWriter defaultWarnWriter = new PrintWriter(System.err);
static final PrintWriter defaultNoticeWriter = new PrintWriter(System.out);
/**
* Constructor
* @param programName Name of the program (for error messages).
*/
protected Messager(Context context, String programName) {
this(context, programName, defaultErrWriter, defaultWarnWriter, defaultNoticeWriter);
}
/**
* Constructor
* @param programName Name of the program (for error messages).
* @param errWriter Stream for error messages
* @param warnWriter Stream for warnings
* @param noticeWriter Stream for other messages
*/
protected Messager(Context context,
String programName,
PrintWriter errWriter,
PrintWriter warnWriter,
PrintWriter noticeWriter) {
super(context, errWriter, warnWriter, noticeWriter);
this.programName = programName;
}
/**
* Reset resource bundle, eg. locale has changed.
*/
public void reset() {
messageRB = null;
}
/**
* Get string from ResourceBundle, initialize ResourceBundle
* if needed.
*/
private String getString(String key) {
ResourceBundle messageRB = this.messageRB;
if (messageRB == null) {
try {
this.messageRB = messageRB =
ResourceBundle.getBundle(
"com.sun.tools.javadoc.resources.javadoc");
} catch (MissingResourceException e) {
throw new Error("Fatal: Resource for javadoc is missing");
}
}
return messageRB.getString(key);
}
/**
* get and format message string from resource
*
* @param key selects message from resource
*/
String getText(String key) {
return getText(key, (String)null);
}
/**
* get and format message string from resource
*
* @param key selects message from resource
* @param a1 first argument
*/
String getText(String key, String a1) {
return getText(key, a1, null);
}
/**
* get and format message string from resource
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
*/
String getText(String key, String a1, String a2) {
return getText(key, a1, a2, null);
}
/**
* get and format message string from resource
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
* @param a3 third argument
*/
String getText(String key, String a1, String a2, String a3) {
return getText(key, a1, a2, a3, null);
}
/**
* get and format message string from resource
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
* @param a3 third argument
* @param a4 fourth argument
*/
String getText(String key, String a1, String a2, String a3,
String a4) {
try {
String message = getString(key);
String[] args = new String[4];
args[0] = a1;
args[1] = a2;
args[2] = a3;
args[3] = a4;
return MessageFormat.format(message, (Object[])args);
} catch (MissingResourceException e) {
return "********** Resource for javadoc is broken. There is no " +
key + " key in resource.";
}
}
/**
* Print error message, increment error count.
* Part of DocErrorReporter.
*
* @param msg message to print
*/
public void printError(String msg) {
printError(null, msg);
}
/**
* Print error message, increment error count.
* Part of DocErrorReporter.
*
* @param pos the position where the error occurs
* @param msg message to print
*/
public void printError(SourcePosition pos, String msg) {
String prefix = (pos == null) ? programName : pos.toString();
errWriter.println(prefix + ": " + getText("javadoc.error") + " - " + msg);
errWriter.flush();
prompt();
nerrors++;
}
/**
* Print warning message, increment warning count.
* Part of DocErrorReporter.
*
* @param msg message to print
*/
public void printWarning(String msg) {
printWarning(null, msg);
}
/**
* Print warning message, increment warning count.
* Part of DocErrorReporter.
*
* @param pos the position where the error occurs
* @param msg message to print
*/
public void printWarning(SourcePosition pos, String msg) {
String prefix = (pos == null) ? programName : pos.toString();
warnWriter.println(prefix + ": " + getText("javadoc.warning") +" - " + msg);
warnWriter.flush();
nwarnings++;
}
/**
* Print a message.
* Part of DocErrorReporter.
*
* @param msg message to print
*/
public void printNotice(String msg) {
printNotice(null, msg);
}
/**
* Print a message.
* Part of DocErrorReporter.
*
* @param pos the position where the error occurs
* @param msg message to print
*/
public void printNotice(SourcePosition pos, String msg) {
if (pos == null)
noticeWriter.println(msg);
else
noticeWriter.println(pos + ": " + msg);
noticeWriter.flush();
}
/**
* Print error message, increment error count.
*
* @param key selects message from resource
*/
public void error(SourcePosition pos, String key) {
printError(pos, getText(key));
}
/**
* Print error message, increment error count.
*
* @param key selects message from resource
* @param a1 first argument
*/
public void error(SourcePosition pos, String key, String a1) {
printError(pos, getText(key, a1));
}
/**
* Print error message, increment error count.
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
*/
public void error(SourcePosition pos, String key, String a1, String a2) {
printError(pos, getText(key, a1, a2));
}
/**
* Print error message, increment error count.
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
* @param a3 third argument
*/
public void error(SourcePosition pos, String key, String a1, String a2, String a3) {
printError(pos, getText(key, a1, a2, a3));
}
/**
* Print warning message, increment warning count.
*
* @param key selects message from resource
*/
public void warning(SourcePosition pos, String key) {
printWarning(pos, getText(key));
}
/**
* Print warning message, increment warning count.
*
* @param key selects message from resource
* @param a1 first argument
*/
public void warning(SourcePosition pos, String key, String a1) {
printWarning(pos, getText(key, a1));
}
/**
* Print warning message, increment warning count.
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
*/
public void warning(SourcePosition pos, String key, String a1, String a2) {
printWarning(pos, getText(key, a1, a2));
}
/**
* Print warning message, increment warning count.
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
* @param a3 third argument
*/
public void warning(SourcePosition pos, String key, String a1, String a2, String a3) {
printWarning(pos, getText(key, a1, a2, a3));
}
/**
* Print warning message, increment warning count.
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
* @param a3 third argument
*/
public void warning(SourcePosition pos, String key, String a1, String a2, String a3,
String a4) {
printWarning(pos, getText(key, a1, a2, a3, a4));
}
/**
* Print a message.
*
* @param key selects message from resource
*/
public void notice(String key) {
printNotice(getText(key));
}
/**
* Print a message.
*
* @param key selects message from resource
* @param a1 first argument
*/
public void notice(String key, String a1) {
printNotice(getText(key, a1));
}
/**
* Print a message.
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
*/
public void notice(String key, String a1, String a2) {
printNotice(getText(key, a1, a2));
}
/**
* Print a message.
*
* @param key selects message from resource
* @param a1 first argument
* @param a2 second argument
* @param a3 third argument
*/
public void notice(String key, String a1, String a2, String a3) {
printNotice(getText(key, a1, a2, a3));
}
/**
* Return total number of errors, including those recorded
* in the compilation log.
*/
public int nerrors() { return nerrors; }
/**
* Return total number of warnings, including those recorded
* in the compilation log.
*/
public int nwarnings() { return nwarnings; }
/**
* Print exit message.
*/
public void exitNotice() {
int nerrors = nerrors();
int nwarnings = nwarnings();
if (nerrors > 0) {
notice((nerrors > 1) ? "main.errors" : "main.error",
"" + nerrors);
}
if (nwarnings > 0) {
notice((nwarnings > 1) ? "main.warnings" : "main.warning",
"" + nwarnings);
}
}
/**
* Force program exit, e.g., from a fatal error.
* <p>
* TODO: This method does not really belong here.
*/
public void exit() {
throw new ExitJavadoc();
}
}