/*

 * Copyright (c) 2006, 2010, 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 6412669 6997958

 * @summary Should be able to get SourcePositions from 269 world

 */

import java.io.*;

import java.net.*;

import java.util.*;

import javax.annotation.*;

import javax.annotation.processing.*;

import javax.lang.model.*;

import javax.lang.model.element.*;

import javax.tools.*;

import com.sun.source.util.*;

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

@SupportedAnnotationTypes("*")

public class T6412669 extends AbstractProcessor {

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

        File testSrc = new File(System.getProperty("test.src", "."));

        File testClasses = new File(System.getProperty("test.classes", "."));

        // Determine location of necessary tools classes. Assume all in one place.

        // Likely candidates are typically tools.jar (when testing JDK build)

        // or build/classes or dist/javac.jar (when testing langtools, using -Xbootclasspath/p:)

        File toolsClasses;

        URL u = T6412669.class.getClassLoader().getResource("com/sun/source/util/JavacTask.class");

        switch (u.getProtocol()) {

            case "file":

                toolsClasses = new File(u.toURI());

                break;

            case "jar":

                String s = u.getFile(); // will be file:path!/entry

                int sep = s.indexOf("!");

                toolsClasses = new File(new URI(s.substring(0, sep)));

                break;

            default:

                throw new AssertionError("Cannot locate tools classes");

        }

        //System.err.println("toolsClasses: " + toolsClasses);

        JavacTool tool = JavacTool.create();

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

        fm.setLocation(StandardLocation.CLASS_PATH, Arrays.asList(testClasses, toolsClasses));

        Iterable<? extends JavaFileObject> files =

            fm.getJavaFileObjectsFromFiles(Arrays.asList(new File(testSrc, T6412669.class.getName()+".java")));

        String[] opts = { "-proc:only", "-processor", T6412669.class.getName()};

        StringWriter sw = new StringWriter();

        JavacTask task = tool.getTask(sw, fm, null, Arrays.asList(opts), null, files);

        boolean ok = task.call();

        String out = sw.toString();

        if (!out.isEmpty())

            System.err.println(out);

        if (!ok)

            throw new AssertionError("compilation of test program failed");

        // verify we found an annotated element to exercise the SourcePositions API

        if (!out.contains("processing element"))

            throw new AssertionError("expected text not found in compilation output");

    }

    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {

        Trees trees = Trees.instance(processingEnv);

        SourcePositions sp = trees.getSourcePositions();

        Messager m = processingEnv.getMessager();

        m.printMessage(Diagnostic.Kind.NOTE, "processing annotations");

        int count = 0;

        for (TypeElement anno: annotations) {

            count++;

            m.printMessage(Diagnostic.Kind.NOTE, "  processing annotation " + anno);

            for (Element e: roundEnv.getElementsAnnotatedWith(anno)) {

                m.printMessage(Diagnostic.Kind.NOTE, "    processing element " + e);

                TreePath p = trees.getPath(e);

                long start = sp.getStartPosition(p.getCompilationUnit(), p.getLeaf());

                long end = sp.getEndPosition(p.getCompilationUnit(), p.getLeaf());

                Diagnostic.Kind k = (start > 0 && end > 0 && start < end

                                     ? Diagnostic.Kind.NOTE : Diagnostic.Kind.ERROR);

                m.printMessage(k, "test [" + start + "," + end + "]", e);

            }

        }

        if (count == 0)

            m.printMessage(Diagnostic.Kind.NOTE, "no annotations found");

        return true;

    }

    @Override

    public SourceVersion getSupportedSourceVersion() {

        return SourceVersion.latest();

    }

}