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A repackaged copy of javac for Error Prone to depend on
/*
* Copyright (c) 2002, 2013, 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.javah;
import java.io.PrintWriter;
import java.text.MessageFormat;
import java.util.Locale;
import java.util.ResourceBundle;
import java.util.MissingResourceException;
import javax.tools.Diagnostic;
import javax.tools.Diagnostic.Kind;
import javax.tools.DiagnosticListener;
import javax.tools.JavaFileObject;
import com.sun.tools.javac.util.DefinedBy;
import com.sun.tools.javac.util.DefinedBy.Api;
/**
* Messages, verbose and error handling support.
*
* For errors, the failure modes are:
* error -- User did something wrong
* bug -- Bug has occurred in javah
* fatal -- We can't even find resources, so bail fast, don't localize
*
* This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own
* risk. This code and its internal interfaces are subject to change
* or deletion without notice.
*/
public class Util {
/** Exit is used to replace the use of System.exit in the original javah.
*/
public static class Exit extends Error {
private static final long serialVersionUID = 430820978114067221L;
Exit(int exitValue) {
this(exitValue, null);
}
Exit(int exitValue, Throwable cause) {
super(cause);
this.exitValue = exitValue;
this.cause = cause;
}
Exit(Exit e) {
this(e.exitValue, e.cause);
}
public final int exitValue;
public final Throwable cause;
}
/*
* Help for verbosity.
*/
public boolean verbose = false;
public PrintWriter log;
public DiagnosticListener dl;
Util(PrintWriter log, DiagnosticListener dl) {
this.log = log;
this.dl = dl;
}
public void log(String s) {
log.println(s);
}
/*
* Help for loading localized messages.
*/
private ResourceBundle m;
private void initMessages() throws Exit {
try {
m = ResourceBundle.getBundle("com.sun.tools.javah.resources.l10n");
} catch (MissingResourceException mre) {
fatal("Error loading resources. Please file a bug report.", mre);
}
}
private String getText(String key, Object... args) throws Exit {
if (m == null)
initMessages();
try {
return MessageFormat.format(m.getString(key), args);
} catch (MissingResourceException e) {
fatal("Key " + key + " not found in resources.", e);
}
return null; /* dead code */
}
/*
* Usage message.
*/
public void usage() throws Exit {
log.println(getText("usage"));
}
public void version() throws Exit {
log.println(getText("javah.version",
System.getProperty("java.version"), null));
}
/*
* Failure modes.
*/
public void bug(String key) throws Exit {
bug(key, null);
}
public void bug(String key, Exception e) throws Exit {
dl.report(createDiagnostic(Diagnostic.Kind.ERROR, key));
dl.report(createDiagnostic(Diagnostic.Kind.NOTE, "bug.report"));
throw new Exit(11, e);
}
public void error(String key, Object... args) throws Exit {
dl.report(createDiagnostic(Diagnostic.Kind.ERROR, key, args));
throw new Exit(15);
}
private void fatal(String msg, Exception e) throws Exit {
dl.report(createDiagnostic(Diagnostic.Kind.ERROR, "", msg));
throw new Exit(10, e);
}
private Diagnostic createDiagnostic(
final Diagnostic.Kind kind, final String code, final Object... args) {
return new Diagnostic() {
@DefinedBy(Api.COMPILER)
public String getCode() {
return code;
}
@DefinedBy(Api.COMPILER)
public long getColumnNumber() {
return Diagnostic.NOPOS;
}
@DefinedBy(Api.COMPILER)
public long getEndPosition() {
return Diagnostic.NOPOS;
}
@DefinedBy(Api.COMPILER)
public Kind getKind() {
return kind;
}
@DefinedBy(Api.COMPILER)
public long getLineNumber() {
return Diagnostic.NOPOS;
}
@DefinedBy(Api.COMPILER)
public String getMessage(Locale locale) {
if (code.length() == 0)
return (String) args[0];
return getText(code, args); // FIXME locale
}
@DefinedBy(Api.COMPILER)
public long getPosition() {
return Diagnostic.NOPOS;
}
@DefinedBy(Api.COMPILER)
public JavaFileObject getSource() {
return null;
}
@DefinedBy(Api.COMPILER)
public long getStartPosition() {
return Diagnostic.NOPOS;
}
};
}
}