/*
 * Copyright 2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.gradle.messaging.remote.internal.protocol;

import org.gradle.messaging.remote.internal.Message;

public abstract class AbstractPayloadMessage extends Message implements PayloadMessage {
    public Object getNestedPayload() {
        Object payload = getPayload();
        if (payload instanceof PayloadMessage) {
            PayloadMessage payloadMessage = (PayloadMessage) payload;
            return payloadMessage.getNestedPayload();
        }
        return payload;
    }

    public Message withNestedPayload(Object payload) {
        Object oldPayload = getPayload();
        if (oldPayload instanceof PayloadMessage) {
            PayloadMessage payloadMessage = (PayloadMessage) oldPayload;
            return withPayload(payloadMessage.withNestedPayload(payload));
        }
        return withPayload(payload);
    }

    public abstract Object getPayload();

    public abstract Message withPayload(Object payload);
}
