/*

 * Copyright (c) 2006, 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 6398884

 * @summary Test that a method inherited from two different interfaces

 *          appears only once in MBeanInfo.

 * @author dfuchs

 * @run clean TooManyFooTest

 * @run build TooManyFooTest

 * @run main TooManyFooTest

 */

import java.lang.management.ManagementFactory;

import java.lang.reflect.Method;

import java.util.Arrays;

import java.util.HashMap;

import java.util.HashSet;

import java.util.Map;

import java.util.Set;

import java.util.logging.Logger;

import javax.management.Descriptor;

import javax.management.MBeanInfo;

import javax.management.MBeanOperationInfo;

import javax.management.MBeanServer;

import javax.management.ObjectName;

import javax.management.StandardMBean;

import javax.management.openmbean.OpenMBeanOperationInfo;

/**

 * Class TooManyFooTest

 * @author Sun Microsystems, 2005 - All rights reserved.

 */

public class TooManyFooTest {

    /**

     * A logger for this class.

     **/

    private static final Logger LOG =

            Logger.getLogger(TooManyFooTest.class.getName());

    public static class NumberHolder {

        public Integer getNumber() { return 0;}

        public void setNumber(Integer n) {};

    }

    public static class MyNumberHolder extends NumberHolder {

    }

    public interface Parent1 {

        public int foo(); // Both in Parent1 and Parent2

        public Integer barfoo(); // Subtype in Parent1, Super type in Parent2

        public Long    foobar(); // Subtype in Parent1 & MBean, Super type in

                                 // Parent2

        public Number  toofoo(); // Subtype in Parent1, Super type in Parent2

                                 // Concrete type in MBean

        public Object toofoofoo(); // Super type in Parent1, Subtype in Parent2,

        public NumberHolder toobarbar(); // toofoofoo reversed

    }

    public interface Parent2 {

        public int foo(); // Both in Parent1 and Parent2

        public Number barfoo();

        public Number foobar();

        public Object toofoo();

        public NumberHolder  toofoofoo();

        public Object toobarbar();

    }

    public interface ChildMBean extends Parent1, Parent2 {

        public Long foobar();

        public Long toofoo();

    }

    public interface ChildMXBean extends Parent1, Parent2 {

        public Long foobar();

        public Long toofoo();

    }

    public interface ChildMixMXBean extends ChildMBean, ChildMXBean {

    }

    public static class Child implements ChildMBean {

        public int foo() {return 0;}

        public Long foobar() {return 0L;}

        public Long toofoo() {return 0L;}

        public Integer barfoo() {return 0;}

        public MyNumberHolder toofoofoo() { return null;}

        public MyNumberHolder toobarbar() { return null;}

    }

    public static class ChildMix implements ChildMXBean {

        public int foo() {return 0;}

        public Long foobar() {return 0L;}

        public Long toofoo() {return 0L;}

        public Integer barfoo() {return 0;}

        public MyNumberHolder toofoofoo() { return null;}

        public MyNumberHolder toobarbar() { return null;}

    }

    public static class ChildMixMix extends Child implements ChildMixMXBean {

    }

    /** Creates a new instance of TooManyFooTest */

    public TooManyFooTest() {

    }

    private static final int OPCOUNT;

    private static final Map<String,String> EXPECTED_TYPES;

    private static final String[][] type_array = {

        { "foo", int.class.getName() },

        { "foobar", Long.class.getName()},

        { "toofoo", Long.class.getName()},

        { "barfoo", Integer.class.getName()},

        { "toofoofoo", NumberHolder.class.getName()},

        { "toobarbar", NumberHolder.class.getName()},

    };

    static {

        try {

            final Set<String> declared = new HashSet<String>();

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

                declared.add(m.getName()+Arrays.asList(m.getParameterTypes()));

            }

            final Set<String> exposed = new HashSet<String>();

            for (Method m:ChildMBean.class.getMethods()) {

                exposed.add(m.getName()+Arrays.asList(m.getParameterTypes()));

            }

            declared.retainAll(exposed);

            OPCOUNT = declared.size();

            EXPECTED_TYPES = new HashMap<String,String>();

            for (String[] st:type_array) {

                EXPECTED_TYPES.put(st[0],st[1]);

            }

        } catch (Exception x) {

            throw new ExceptionInInitializerError(x);

        }

    }

    private static void test(Object child, String name, boolean mxbean)

        throws Exception {

        final ObjectName childName =

                new ObjectName("test:type=Child,name="+name);

        final MBeanServer server =

                ManagementFactory.getPlatformMBeanServer();

        server.registerMBean(child,childName);

        try {

            final MBeanInfo info = server.getMBeanInfo(childName);

            System.out.println(name+": " + info.getDescriptor());

            final int len = info.getOperations().length;

            if (len == OPCOUNT) {

                System.out.println(name+": OK, only "+OPCOUNT+

                        " operations here...");

            } else {

                final String qual = (len>OPCOUNT)?"many":"few";

                System.err.println(name+": Too "+qual+" foos! Found "+

                        len+", expected "+OPCOUNT);

                for (MBeanOperationInfo op : info.getOperations()) {

                    System.err.println("public "+op.getReturnType()+" "+

                            op.getName()+"();");

                }

                throw new RuntimeException("Too " + qual +

                        " foos for "+name);

            }

            final Descriptor d = info.getDescriptor();

            final String mxstr = String.valueOf(d.getFieldValue("mxbean"));

            final boolean mxb =

                    (mxstr==null)?false:Boolean.valueOf(mxstr).booleanValue();

            System.out.println(name+": mxbean="+mxb);

            if (mxbean && !mxb)

                throw new AssertionError("MXBean is not OpenMBean?");

            for (MBeanOperationInfo mboi : info.getOperations()) {

                // Sanity check

                if (mxbean && !mboi.getName().equals("foo")) {

                    // The spec doesn't guarantee that the MBeanOperationInfo

                    // of an MXBean will be an OpenMBeanOperationInfo, and in

                    // some circumstances in our implementation it will not.

                    // However, in thsi tests, for all methods but foo(),

                    // it should.

                    //

                    if (!(mboi instanceof OpenMBeanOperationInfo))

                        throw new AssertionError("Operation "+mboi.getName()+

                                "() is not Open?");

                }

                final String exp = EXPECTED_TYPES.get(mboi.getName());

                // For MXBeans, we need to compare 'exp' with the original

                // type - because mboi.getReturnType() returns the OpenType

                //

                String type = (String)mboi.getDescriptor().

                            getFieldValue("originalType");

                if (type == null) type = mboi.getReturnType();

                if (type.equals(exp)) continue;

                System.err.println("Bad return type for "+

                        mboi.getName()+"! Found "+type+

                        ", expected "+exp);

                throw new RuntimeException("Bad return type for "+

                        mboi.getName());

            }

        } finally {

            server.unregisterMBean(childName);

        }

    }

    public static void main(String[] args) throws Exception {

        final Child child = new Child();

        test(child,"Child[MBean]",false);

        final ChildMix childx = new ChildMix();

        test(childx,"ChildMix[MXBean]",true);

        final ChildMixMix childmx = new ChildMixMix();

        test(childmx,"ChildMixMix[MXBean]",false);

        final StandardMBean schild = new StandardMBean(child,ChildMBean.class);

        test(schild,"Child[StandarMBean(Child)]",false);

        final StandardMBean schildx =

                new StandardMBean(childx,ChildMXBean.class,true);

        test(schildx,"ChildMix[StandarMXBean(ChildMix)]",true);

        final StandardMBean schildmx =

                new StandardMBean(childmx,ChildMixMXBean.class,true);

        test(schildmx,"ChildMixMix[StandarMXBean(ChildMixMix)]",true);

    }

}