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  */
  25 
  26 package com.sun.tools.internal.ws.wscompile;
  27 
  28 import com.sun.istack.internal.tools.ParallelWorldClassLoader;
  29 import com.sun.tools.internal.ws.resources.JavacompilerMessages;
  30 
  31 import java.io.File;
  32 import java.io.OutputStream;
  33 import java.io.PrintWriter;
  34 import java.lang.reflect.InvocationTargetException;
  35 import java.lang.reflect.Method;
  36 import java.net.MalformedURLException;
  37 import java.net.URL;
  38 import java.net.URISyntaxException;
  39 
  40 /**
  41  * A helper class to invoke javac.
  42  *
  43  * @author WS Development Team
  44  */
  45 class JavaCompilerHelper{
  46     static File getJarFile(Class clazz) {
  47         URL url = null;
  48         try {
  49             url = ParallelWorldClassLoader.toJarUrl(clazz.getResource('/'+clazz.getName().replace('.','/')+".class"));
  50             return new File(url.toURI());
  51         } catch (ClassNotFoundException e) {
  52             // if we can't figure out where JAXB/JAX-WS API are, we couldn't have been executing this code.
  53             throw new Error(e);
  54         } catch (MalformedURLException e) {
  55             // if we can't figure out where JAXB/JAX-WS API are, we couldn't have been executing this code.
  56             throw new Error(e);
  57         } catch (URISyntaxException e) {
  58             // url.toURI() is picky and doesn't like ' ' in URL, so this is the fallback
  59             return new File(url.getPath());
  60         }
  61     }
  62 
  63     static boolean compile(String[] args, OutputStream out, ErrorReceiver receiver){
  64         ClassLoader cl = Thread.currentThread().getContextClassLoader();
  65         try {
  66             /* try to use the new compiler */
  67             Class comSunToolsJavacMainClass =
  68                     cl.loadClass("com.sun.tools.javac.Main");
  69             try {
  70                 Method compileMethod =
  71                         comSunToolsJavacMainClass.getMethod(
  72                                 "compile",
  73                                 compileMethodSignature);
  74                     Object result =
  75                             compileMethod.invoke(
  76                                     null, args, new PrintWriter(out));
  77                     return result instanceof Integer && (Integer) result == 0;
  78             } catch (NoSuchMethodException e2) {
  79                 receiver.error(JavacompilerMessages.JAVACOMPILER_NOSUCHMETHOD_ERROR("getMethod(\"compile\", Class[])"), e2);
  80             } catch (IllegalAccessException e) {
  81                 receiver.error(e);
  82             } catch (InvocationTargetException e) {
  83                 receiver.error(e);
  84             }
  85         } catch (ClassNotFoundException e) {
  86             receiver.error(JavacompilerMessages.JAVACOMPILER_CLASSPATH_ERROR("com.sun.tools.javac.Main"), e);
  87         } catch (SecurityException e) {
  88             receiver.error(e);
  89         }
  90         return false;
  91     }
  92 
  93     private static final Class[] compileMethodSignature = {String[].class, PrintWriter.class};
  94 }