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 *

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 * This code is distributed in the hope that it will be useful, but WITHOUT

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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

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/*

 * @test

 * @bug 6204469

 * @summary Test ImmutableDescriptor serialization.

 * @author Eamonn McManus

 * @run clean ImmutableDescriptorSerialTest

 * @run build ImmutableDescriptorSerialTest

 * @run main ImmutableDescriptorSerialTest

 */

import java.io.ByteArrayInputStream;

import java.io.ByteArrayOutputStream;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import java.util.Arrays;

import java.util.HashSet;

import java.util.Set;

import javax.management.Descriptor;

import javax.management.ImmutableDescriptor;

public class ImmutableDescriptorSerialTest {

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

        System.out.println("Test that ImmutableDescriptor.EMPTY_DESCRIPTOR " +

                "deserializes identically");

        if (serialize(ImmutableDescriptor.EMPTY_DESCRIPTOR) !=

                ImmutableDescriptor.EMPTY_DESCRIPTOR) {

            throw new Exception("ImmutableDescriptor.EMPTY_DESCRIPTOR did not " +

                    "deserialize identically");

        }

        System.out.println("...OK");

        System.out.println("Test that serialization preserves case and " +

                "that deserialized object is case-insensitive");

        Descriptor d = new ImmutableDescriptor("a=aval", "B=Bval", "cC=cCval");

        Descriptor d1 = serialize(d);

        Set<String> keys = new HashSet(Arrays.asList(d1.getFieldNames()));

        if (keys.size() != 3 ||

                !keys.containsAll(Arrays.asList("a", "B", "cC"))) {

            throw new Exception("Keys don't match: " + keys);

        }

        for (String key : keys) {

            String value = (String) d.getFieldValue(key);

            for (String t :

                    Arrays.asList(key, key.toLowerCase(), key.toUpperCase())) {

                String tvalue = (String) d1.getFieldValue(t);

                if (!tvalue.equals(value)) {

                    throw new Exception("Value of " + key + " for " +

                            "deserialized object does not match: " +

                            tvalue + " should be " + value);

                }

            }

        }

        System.out.println("...OK");

    }

    private static <T> T serialize(T x) throws Exception {

        ByteArrayOutputStream bout = new ByteArrayOutputStream();

        ObjectOutputStream oout = new ObjectOutputStream(bout);

        oout.writeObject(x);

        oout.close();

        byte[] bytes = bout.toByteArray();

        ByteArrayInputStream bin = new ByteArrayInputStream(bytes);

        ObjectInputStream oin = new ObjectInputStream(bin);

        return (T) oin.readObject();

    }

}