/*

 * Copyright (c) 2013, 2016, 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 8007320 8014709 8163231

 * @summary Test all optional fields in ConstMethod

 * @compile -g -parameters ConstMethodTest.java

 * @run main ConstMethodTest

 */

import java.util.*;

import java.lang.annotation.*;

import java.lang.reflect.*;

import java.io.Serializable;

@Retention(RetentionPolicy.RUNTIME)

@interface MyAnnotation {

    public String name();

    public String value();

    public String date() default "today";

}

@Target(ElementType.TYPE_USE)

@Retention(RetentionPolicy.RUNTIME)

@interface TypeAnno {

    String value();

}

@Target(ElementType.TYPE_USE)

@Retention(RetentionPolicy.RUNTIME)

@interface TypeAnno2 {

    String value();

}

@Retention(RetentionPolicy.RUNTIME)

@Target(ElementType.PARAMETER)

@interface Named {

  String value();

}

@Retention(RetentionPolicy.RUNTIME)

@interface ScalarTypesWithDefault {

    byte     b()    default 11;

    short    s()    default 12;

    int      i()    default 13;

    long     l()    default 14;

    char     c()    default 'V';

}

// Some exception class

class OkException extends RuntimeException {};

@MyAnnotation(name="someName", value = "Hello World")

public class ConstMethodTest {

    public @TypeAnno("constructor") ConstMethodTest() { }

    public ConstMethodTest(int i) {

        // needs a second unannotated constructor

    }

    private static void check(boolean b) {

        if (!b)

            throw new RuntimeException();

    }

    private static void fail(String msg) {

       System.err.println(msg);

       throw new RuntimeException();

    }

    private static void equal(Object x, Object y) {

        if (x == null ? y == null : x.equals(y)) {

        } else {

            fail(x + " not equal to " + y);

        }

    }

    private static final String[] parameter_names = {

        "parameter", "parameter2", "x"

    };

    // Declare a function with everything in it.

    @MyAnnotation(name="someName", value="Hello World")

    static <T> void kitchenSinkFunc(@Named(value="aName") String parameter,

              @Named("bName") String parameter2,

              @ScalarTypesWithDefault T x)

            throws @TypeAnno("RE") @TypeAnno2("RE2") RuntimeException,

                NullPointerException,

                @TypeAnno("AIOOBE") ArrayIndexOutOfBoundsException {

      int i, j, k;

      try {

        System.out.println("calling kitchenSinkFunc " + parameter);

        throw new OkException();  // to see stack trace with line numbers

      } catch (Exception e) {

       e.printStackTrace();

      }

    }

    private static void test1() throws Throwable {

        for (Method m : ConstMethodTest.class.getDeclaredMethods()) {

            if (m.getName().equals("kitchenSinkFunc")) {

                Annotation[][] ann = m.getParameterAnnotations();

                equal(ann.length, 3);

                Annotation foo = ann[0][0];

                Annotation bar = ann[1][0];

                equal(foo.toString(), "@Named(value=\"aName\")");

                equal(bar.toString(), "@Named(value=\"bName\")");

                check(foo.equals(foo));

                check(bar.equals(bar));

                check(! foo.equals(bar));

                // method annotations

                Annotation[] ann2 = m.getAnnotations();

                equal(ann2.length, 1);

                Annotation mann = ann2[0];

                equal(mann.toString(), "@MyAnnotation(date=\"today\", name=\"someName\", value=\"Hello World\")");

                // Test Method parameter names

                Parameter[] parameters = m.getParameters();

                if(parameters == null)

                    throw new Exception("getParameters should never be null");

                for(int i = 0; i < parameters.length; i++) {

                    Parameter p = parameters[i];

                    equal(parameters[i].getName(), parameter_names[i]);

                }

            }

        }

    }

    private static void testConstructor() throws Exception {

        for (Constructor c : ConstMethodTest.class.getDeclaredConstructors()) {

            Annotation[] aa = c.getAnnotatedReturnType().getAnnotations();

            if (c.getParameterTypes().length == 1) { // should be un-annotated

                check(aa.length == 0);

            } else if (c.getParameterTypes().length == 0) { //should be annotated

                check(aa.length == 1);

                check(((TypeAnno)aa[0]).value().equals("constructor"));

            } else {

                //should not happen

                check(false);

            }

        }

    }

    public static void main(java.lang.String[] unused) throws Throwable {

        // pass 5 so kitchenSinkFunc is instantiated with an int

        kitchenSinkFunc("parameter", "param2", 5);

        test1();

        testConstructor();

    }

};