/*
 * 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.persistent;

import org.elasticsearch.action.ActionResponse;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.persistent.PersistentTasksCustomMetaData.PersistentTask;

import java.io.IOException;
import java.util.Objects;

/**
 * Response upon a successful start or an persistent task
 */
public class PersistentTaskResponse extends ActionResponse {
    private PersistentTask<?> task;

    public PersistentTaskResponse() {
        super();
    }

    public PersistentTaskResponse(PersistentTask<?> task) {
        this.task = task;
    }

    @Override
    public void readFrom(StreamInput in) throws IOException {
        super.readFrom(in);
        task = in.readOptionalWriteable(PersistentTask::new);
    }

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

    public PersistentTask<?> getTask() {
        return task;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        PersistentTaskResponse that = (PersistentTaskResponse) o;
        return Objects.equals(task, that.task);
    }

    @Override
    public int hashCode() {
        return Objects.hash(task);
    }
}
