/*

 * Copyright 2010 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

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

 * have any questions.

 */

import java.io.*;

import java.util.*;

import javax.annotation.processing.*;

import javax.lang.model.element.*;

import javax.lang.model.SourceVersion;

import javax.tools.Diagnostic.Kind;

/*

 * @test

 * @bug 6499119

 * @summary Created package-info class file modeled improperly

 * @compile ClassProcessor.java package-info.java

 * @compile/process -cp . -processor ClassProcessor -Akind=java  java.lang.Object

 * @compile/process -cp . -processor ClassProcessor -Akind=class java.lang.Object

 */

@SupportedOptions({ "gen", "expect" })

@SupportedAnnotationTypes({"*"})

public class ClassProcessor extends AbstractProcessor {

    int round = 1;

    public SourceVersion getSupportedSourceVersion() {

        return SourceVersion.latest();

    }

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

        if (round == 1) {

            System.out.println("-- Round 1 --");

            createPackageFile();

        } else if (round == 2) {

            boolean found_foo_A = false;

            System.out.println("-- Round 2 --");

            for(Element e: roundEnv.getRootElements()) {

                System.out.println("ElementKind: " + e.getKind());

                System.out.println("Modifiers:   " + e.getModifiers());

                System.out.println("Annotations: " + e.getAnnotationMirrors());

                if (e.getAnnotationMirrors().toString().equals("@foo.A")) {

                    found_foo_A = true;

                    checkEqual("ElementKind", e.getKind().toString(), "PACKAGE");

                    checkEqual("Modifiers",   e.getModifiers().toString(), "[]");

                }

            }

            if (!found_foo_A)

                error("did not find @foo.A");

        }

        round++;

        return true;

    }

    private void createPackageFile() {

        Filer filer = processingEnv.getFiler();

        String kind = processingEnv.getOptions().get("kind");

        File pkgInfo;

        if (kind.equals("java"))

            pkgInfo = new File(System.getProperty("test.src"),     "package-info.java");

        else

            pkgInfo = new File(System.getProperty("test.classes"), "foo/package-info.class");

        byte[] bytes = new byte[(int) pkgInfo.length()];

        DataInputStream in = null;

        try {

            in = new DataInputStream(new FileInputStream(pkgInfo));

            in.readFully(bytes);

        } catch (IOException ioe) {

            error("Couldn't read package info file: " + ioe);

        } finally {

            if(in != null) {

                try {

                    in.close();

                } catch (IOException e) {

                    error("InputStream closing failed: " + e);

                }

            }

        }

        OutputStream out = null;

        try {

            if (kind.equals("java"))

                out = filer.createSourceFile("foo.package-info").openOutputStream();

            else

                out = filer.createClassFile("foo.package-info").openOutputStream();

            out.write(bytes, 0, bytes.length);

        } catch (IOException ioe) {

            error("Couldn't create package info file: " + ioe);

        } finally {

            if(out != null) {

                try {

                    out.close();

                } catch (IOException e) {

                    error("OutputStream closing failed: " + e);

                }

            }

        }

    }

    private void checkEqual(String label, String actual, String expect) {

        if (!actual.equals(expect)) {

            error("Unexpected value for " + label + "; actual=" + actual + ", expected=" + expect);

        }

    }

    private void error(String msg) {

        Messager messager = processingEnv.getMessager();

        messager.printMessage(Kind.ERROR, msg);

    }

}