JavaCompilerHelper.java

/*
 * Copyright (c) 1997, 2014, 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.internal.ws.wscompile;

import com.sun.istack.internal.tools.ParallelWorldClassLoader;
import com.sun.tools.internal.ws.resources.JavacompilerMessages;

import javax.tools.JavaCompiler;
import javax.tools.ToolProvider;
import java.io.File;
import java.io.OutputStream;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;

/**
 * A helper class to invoke javac.
 *
 * @author WS Development Team
 */
class JavaCompilerHelper{
    static File getJarFile(Class clazz) {
        URL url = null;
        try {
            url = ParallelWorldClassLoader.toJarUrl(clazz.getResource('/'+clazz.getName().replace('.','/')+".class"));
            return new File(url.toURI());
        } catch (ClassNotFoundException e) {
            // if we can't figure out where JAXB/JAX-WS API are, we couldn't have been executing this code.
            throw new Error(e);
        } catch (MalformedURLException e) {
            // if we can't figure out where JAXB/JAX-WS API are, we couldn't have been executing this code.
            throw new Error(e);
        } catch (URISyntaxException e) {
            // url.toURI() is picky and doesn't like ' ' in URL, so this is the fallback
            return new File(url.getPath());
        }
    }

    static boolean compile(String[] args, OutputStream out, ErrorReceiver receiver){
        try {
            JavaCompiler comp = ToolProvider.getSystemJavaCompiler();
            if (comp == null) {
                receiver.error(JavacompilerMessages.NO_JAVACOMPILER_ERROR(), null);
                return false;
            }
            return 0 == comp.run(null, out, out, args);
        } catch (SecurityException e) {
            receiver.error(e);
        }
        return false;
    }

}