1 /*

     2  * Copyright 2005-2006 Sun Microsystems, Inc.  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.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 package com.sun.tools.javac;

    27 

    28 import com.sun.tools.javac.main.JavacOption.Option;

    29 import com.sun.tools.javac.main.RecognizedOptions.GrumpyHelper;

    30 import com.sun.tools.javac.main.RecognizedOptions;

    31 import java.io.*;

    32 import java.net.*;

    33 import java.util.*;

    34 import java.util.concurrent.*;

    35 import java.util.logging.Logger;

    36 import javax.tools.*;

    37 

    38 /**

    39  * Java Compiler Server.  Can be used to speed up a set of (small)

    40  * compilation tasks by caching jar files between compilations.

    41  *

    42  * <p><b>This is NOT part of any API supported by Sun Microsystems.

    43  * If you write code that depends on this, you do so at your own

    44  * risk.  This code and its internal interfaces are subject to change

    45  * or deletion without notice.</b></p>

    46  *

    47  * @author Peter von der Ahé

    48  * @since 1.6

    49  */

    50 class Server implements Runnable {

    51     private final BufferedReader in;

    52     private final OutputStream out;

    53     private final boolean isSocket;

    54     private static final JavaCompiler tool = ToolProvider.getSystemJavaCompiler();

    55     private static Logger logger = Logger.getLogger("com.sun.tools.javac");

    56     static class CwdFileManager extends ForwardingJavaFileManager<JavaFileManager> {

    57         String cwd;

    58         CwdFileManager(JavaFileManager fileManager) {

    59             super(fileManager);

    60         }

    61         String getAbsoluteName(String name) {

    62             if (new File(name).isAbsolute()) {

    63                 return name;

    64             } else {

    65                 return new File(cwd,name).getPath();

    66             }

    67         }

    68 //      public JavaFileObject getFileForInput(String name)

    69 //          throws IOException

    70 //      {

    71 //          return super.getFileForInput(getAbsoluteName(name));

    72 //      }

    73     }

    74     // static CwdFileManager fm = new CwdFileManager(tool.getStandardFileManager());

    75     static StandardJavaFileManager fm = tool.getStandardFileManager(null, null, null);

    76     static {

    77         // Use the same file manager for all compilations.  This will

    78         // cache jar files in the standard file manager.  Use

    79         // tool.getStandardFileManager().close() to release.

    80         // FIXME tool.setFileManager(fm);

    81         logger.setLevel(java.util.logging.Level.SEVERE);

    82     }

    83     private Server(BufferedReader in, OutputStream out, boolean isSocket) {

    84         this.in = in;

    85         this.out = out;

    86         this.isSocket = isSocket;

    87     }

    88     private Server(BufferedReader in, OutputStream out) {

    89         this(in, out, false);

    90     }

    91     private Server(Socket socket) throws IOException, UnsupportedEncodingException {

    92         this(new BufferedReader(new InputStreamReader(socket.getInputStream(), "utf-8")),

    93              socket.getOutputStream(),

    94              true);

    95     }

    96     public void run() {

    97         List<String> args = new ArrayList<String>();

    98         int res = -1;

    99         try {

   100             String line = null;

   101             try {

   102                 line = in.readLine();

   103             } catch (IOException e) {

   104                 System.err.println(e.getLocalizedMessage());

   105                 System.exit(0);

   106                 line = null;

   107             }

   108             // fm.cwd=null;

   109             String cwd = null;

   110             while (line != null) {

   111                 if (line.startsWith("PWD:")) {

   112                     cwd = line.substring(4);

   113                 } else if (line.equals("END")) {

   114                     break;

   115                 } else if (!"-XDstdout".equals(line)) {

   116                     args.add(line);

   117                 }

   118                 try {

   119                     line = in.readLine();

   120                 } catch (IOException e) {

   121                     System.err.println(e.getLocalizedMessage());

   122                     System.exit(0);

   123                     line = null;

   124                 }

   125             }

   126             Iterable<File> path = cwd == null ? null : Arrays.<File>asList(new File(cwd));

   127             // try { in.close(); } catch (IOException e) {}

   128             long msec = System.currentTimeMillis();

   129             try {

   130                 synchronized (tool) {

   131                     for (StandardLocation location : StandardLocation.values())

   132                         fm.setLocation(location, path);

   133                     res = compile(out, fm, args);

   134                     // FIXME res = tool.run((InputStream)null, null, out, args.toArray(new String[args.size()]));

   135                 }

   136             } catch (Throwable ex) {

   137                 logger.log(java.util.logging.Level.SEVERE, args.toString(), ex);

   138                 PrintWriter p = new PrintWriter(out, true);

   139                 ex.printStackTrace(p);

   140                 p.flush();

   141             }

   142             if (res >= 3) {

   143                 logger.severe(String.format("problem: %s", args));

   144             } else {

   145                 logger.info(String.format("success: %s", args));

   146             }

   147             // res = compile(args.toArray(new String[args.size()]), out);

   148             msec -= System.currentTimeMillis();

   149             logger.info(String.format("Real time: %sms", -msec));

   150         } finally {

   151             if (!isSocket) {

   152                 try { in.close(); } catch (IOException e) {}

   153             }

   154             try {

   155                 out.write(String.format("EXIT: %s%n", res).getBytes());

   156             } catch (IOException ex) {

   157                 logger.log(java.util.logging.Level.SEVERE, args.toString(), ex);

   158             }

   159             try {

   160                 out.flush();

   161                 out.close();

   162             } catch (IOException ex) {

   163                 logger.log(java.util.logging.Level.SEVERE, args.toString(), ex);

   164             }

   165             logger.info(String.format("EXIT: %s", res));

   166         }

   167     }

   168     public static void main(String... args) throws FileNotFoundException {

   169         if (args.length == 2) {

   170             for (;;) {

   171                 throw new UnsupportedOperationException("TODO");

   172 //              BufferedReader in = new BufferedReader(new FileReader(args[0]));

   173 //              PrintWriter out = new PrintWriter(args[1]);

   174 //              new Server(in, out).run();

   175 //              System.out.flush();

   176 //              System.err.flush();

   177             }

   178         } else {

   179             ExecutorService pool = Executors.newCachedThreadPool();

   180             try

   181                 {

   182                 ServerSocket socket = new ServerSocket(0xcafe, -1, null);

   183                 for (;;) {

   184                     pool.execute(new Server(socket.accept()));

   185                 }

   186             }

   187             catch (IOException e) {

   188                 System.err.format("Error: %s%n", e.getLocalizedMessage());

   189                 pool.shutdown();

   190             }

   191         }

   192     }

   193 

   194     private int compile(OutputStream out, StandardJavaFileManager fm, List<String> args) {

   195         // FIXME parse args and use getTask

   196         // System.err.println("Running " + args);

   197         return tool.run(null, null, out, args.toArray(new String[args.size()]));

   198     }

   199 }