/*

 * Copyright (c) 2016, 2019, 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.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * 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.

 */

package jdk.jfr.consumer;

import java.lang.reflect.Modifier;

import java.util.List;

import jdk.jfr.ValueDescriptor;

import jdk.jfr.internal.Type;

/**

 * A recorded method.

 *

 * @since 8

 */

public final class RecordedMethod extends RecordedObject {

    static ObjectFactory<RecordedMethod> createFactory(Type type, TimeConverter timeConverter) {

        return new ObjectFactory<RecordedMethod>(type) {

            @Override

            RecordedMethod createTyped(List<ValueDescriptor> desc, long id, Object[] object) {

                return new RecordedMethod(desc, object, timeConverter);

            }

        };

    }

    private RecordedMethod(List<ValueDescriptor> descriptors, Object[] objects, TimeConverter timeConverter) {

        super(descriptors, objects, timeConverter);

    }

    /**

     * Returns the class this method belongs to, if it belong to a Java frame.

     * <p>

     * To ensure this is a Java frame, use the {@link RecordedFrame#isJavaFrame()}

     * method.

     *

     * @return the class, may be {@code null} if not a Java frame

     *

     * @see RecordedFrame#isJavaFrame()

     */

    public RecordedClass getType() {

        return getTyped("type", RecordedClass.class, null);

    }

    /**

     * Returns the name of this method, for example {@code "toString"}.

     * <p>

     * If this method doesn't belong to a Java frame the result is undefined.

     *

     * @return method name, or {@code null} if doesn't exist

     *

     * @see RecordedFrame#isJavaFrame()

     */

    public String getName() {

        return getTyped("name", String.class, null);

    }

    /**

     * Returns the method descriptor for this method (for example,

     * {@code "(Ljava/lang/String;)V"}).

     * <p>

     * See Java Virtual Machine Specification, 4.3

     * <p>

     * If this method doesn't belong to a Java frame then the the result is undefined.

     *

     * @return method descriptor.

     *

     * @see RecordedFrame#isJavaFrame()

     */

    public String getDescriptor() {

        return getTyped("descriptor", String.class, null);

    }

    /**

     * Returns the modifiers for this method.

     * <p>

     * If this method doesn't belong to a Java frame, then the result is undefined.

     *

     * @return the modifiers

     *

     * @see Modifier

     * @see RecordedFrame#isJavaFrame

     */

    public int getModifiers() {

        return getTyped("modifiers", Integer.class, Integer.valueOf(0));

    }

    /**

     * Returns whether this method is hidden (for example, wrapper code in a lambda

     * expressions).

     *

     * @return {@code true} if method is hidden, {@code false} otherwise

     */

    public boolean isHidden() {

        return getTyped("hidden", Boolean.class, Boolean.FALSE);

    }

}