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/*
* Copyright (c) 2014, 2016, 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
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*/
package com.sun.tools.sjavac.server;
import java.io.FileWriter;
import java.io.FilterOutputStream;
import java.io.FilterWriter;
import java.io.IOException;
import java.io.PrintStream;
import java.lang.Thread.UncaughtExceptionHandler;
import com.sun.tools.javac.main.Main;
import com.sun.tools.javac.main.Main.Result;
import com.sun.tools.sjavac.Log;
import com.sun.tools.sjavac.Log.Level;
import com.sun.tools.sjavac.server.log.LazyInitFileLog;
import com.sun.tools.sjavac.server.log.LoggingOutputStream;
import static com.sun.tools.sjavac.Log.Level.ERROR;
import static com.sun.tools.sjavac.Log.Level.INFO;
/**
* 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 ServerMain {
// For logging server internal (non request specific) errors.
private static LazyInitFileLog errorLog;
public static int run(String[] args) {
// Under normal operation, all logging messages generated server-side
// are due to compilation requests. These logging messages should
// be relayed back to the requesting client rather than written to the
// server log. The only messages that should be written to the server
// log (in production mode) should be errors,
Log.setLogForCurrentThread(errorLog = new LazyInitFileLog("server.log"));
Log.setLogLevel(ERROR); // should be set to ERROR.
// Make sure no exceptions go under the radar
Thread.setDefaultUncaughtExceptionHandler((t, e) -> {
Log.setLogForCurrentThread(errorLog);
Log.error(e);
});
// Inevitably someone will try to print messages using System.{out,err}.
// Make sure this output also ends up in the log.
System.setOut(new PrintStream(new LoggingOutputStream(System.out, INFO, "[stdout] ")));
System.setErr(new PrintStream(new LoggingOutputStream(System.err, ERROR, "[stderr] ")));
// Any options other than --startserver?
if (args.length > 1) {
Log.error("When spawning a background server, only a single --startserver argument is allowed.");
return Result.CMDERR.exitCode;
}
int exitCode;
try {
SjavacServer server = new SjavacServer(args[0]);
exitCode = server.startServer();
} catch (IOException | InterruptedException ex) {
ex.printStackTrace();
exitCode = Result.ERROR.exitCode;
}
return exitCode;
}
public static LazyInitFileLog getErrorLog() {
return errorLog;
}
}