/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.apache.ignite.internal.visor.shutdown;

import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.apache.ignite.ShutdownPolicy;
import org.apache.ignite.internal.dto.IgniteDataTransferObject;

/**
 * Arguments for shutdown policy task.
 */
public class VisorShutdownPolicyTaskArg extends IgniteDataTransferObject {
    /** Serial version id. */
    private static final long serialVersionUID = 0L;

    /** Shutdown policy to set or {@code null} for only display. */
    private ShutdownPolicy shutdown;

    /**
     * Default constructor for serialization.
     */
    public VisorShutdownPolicyTaskArg() {
    }

    /**
     * @param shutdown Shutdown policy.
     */
    public VisorShutdownPolicyTaskArg(ShutdownPolicy shutdown) {
        this.shutdown = shutdown;
    }

    /**
     * Get policy.
     *
     * @return Shutdown policy.
     */
    public ShutdownPolicy getShutdown() {
        return shutdown;
    }

    /**
     * Set policy.
     *
     * @param shutdown Shutdown policy.
     */
    public void setShutdown(ShutdownPolicy shutdown) {
        this.shutdown = shutdown;
    }

    /** {@inheritDoc} */
    @Override protected void writeExternalData(ObjectOutput out) throws IOException {
        out.writeInt(shutdown == null ? -1 : shutdown.index());
    }

    /** {@inheritDoc} */
    @Override protected void readExternalData(byte protoVer, ObjectInput in) throws IOException, ClassNotFoundException {
        shutdown = ShutdownPolicy.fromOrdinal(in.readInt());
    }
}
