/*
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch licenses this file to you 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.elasticsearch.action.support.nodes;

import org.elasticsearch.cluster.node.DiscoveryNode;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.transport.TransportResponse;

import java.io.IOException;

/**
 * A base class for node level operations.
 */
public abstract class NodeOperationResponse extends TransportResponse {

    private DiscoveryNode node;

    protected NodeOperationResponse() {
    }

    protected NodeOperationResponse(DiscoveryNode node) {
        assert node != null;
        this.node = node;
    }

    /**
     * The node this information relates to.
     */
    public DiscoveryNode getNode() {
        return node;
    }

    @Override
    public void readFrom(StreamInput in) throws IOException {
        super.readFrom(in);
        node = DiscoveryNode.readNode(in);
    }

    @Override
    public void writeTo(StreamOutput out) throws IOException {
        super.writeTo(out);
        node.writeTo(out);
    }
}
