/*

 * Copyright (c) 2005, 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.

 *

 * 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.

 */

/*

 * @test

 * @bug     4813736 8015073

 * @summary Provide a basic test of access to the Java Model from javac, and error messages

 * @author  Peter von der Ah\u00e9

 * @run main TestJavacTask TestJavacTask.java

 */

import com.sun.tools.javac.api.JavacTaskImpl;

import java.io.File;

import java.io.IOException;

import java.util.Arrays;

import javax.lang.model.element.TypeElement;

import javax.tools.JavaCompiler;

import javax.tools.JavaFileObject;

import javax.tools.StandardJavaFileManager;

import javax.tools.ToolProvider;

public class TestJavacTask {

    static final JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();

    static final StandardJavaFileManager fm = compiler.getStandardFileManager(null, null, null);

    static JavacTaskImpl getTask(File... file) {

        Iterable<? extends JavaFileObject> files =

            fm.getJavaFileObjectsFromFiles(Arrays.asList(file));

        return (JavacTaskImpl)compiler.getTask(null, fm, null, null, null, files);

    }

    static void basicTest(String... args) throws IOException {

        String srcdir = System.getProperty("test.src");

        File file = new File(srcdir, args[0]);

        JavacTaskImpl task = getTask(file);

        for (TypeElement clazz : task.enter(task.parse()))

            System.out.println(clazz.getSimpleName());

    }

    static void checkKindError() {

        final File testFile = new File("Test.java "); // <-note trailing space!

        try {

            getTask(testFile);

        } catch (IllegalArgumentException iae) {

            // The following check is somewhat fragile, since the content of the ILA is not

            // formally specified. If we want to fix this, we should catch/rewrap ILA coming

            // from use of java.nio.file.Path inside javac's impl of JavaFileManager.

            if (!iae.getMessage().contains(testFile.getName())) {

                System.err.println("Got message: " + iae.getMessage());

                throw new RuntimeException("Error: expected string not found");

            }

        }

    }

    public static void main(String... args) throws IOException {

        try {

            basicTest(args);

            checkKindError();

        } finally {

            fm.close();

        }

    }

}