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/*
 * 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.action.ActionRequest;
import org.elasticsearch.action.ActionRequestValidationException;
import org.elasticsearch.common.Strings;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.unit.TimeValue;

import java.io.IOException;

/**
 *
 */
public abstract class NodesOperationRequest extends ActionRequest {

    public static String[] ALL_NODES = Strings.EMPTY_ARRAY;

    private String[] nodesIds;

    private TimeValue timeout;

    protected NodesOperationRequest() {

    }

    protected NodesOperationRequest(ActionRequest request, String... nodesIds) {
        super(request);
        this.nodesIds = nodesIds;
    }

    protected NodesOperationRequest(String... nodesIds) {
        this.nodesIds = nodesIds;
    }

    public final String[] nodesIds() {
        return nodesIds;
    }

    @SuppressWarnings("unchecked")
    public final T nodesIds(String... nodesIds) {
        this.nodesIds = nodesIds;
        return (T) this;
    }

    public TimeValue timeout() {
        return this.timeout;
    }

    @SuppressWarnings("unchecked")
    public final T timeout(TimeValue timeout) {
        this.timeout = timeout;
        return (T) this;
    }

    @SuppressWarnings("unchecked")
    public final T timeout(String timeout) {
        this.timeout = TimeValue.parseTimeValue(timeout, null);
        return (T) this;
    }

    @Override
    public ActionRequestValidationException validate() {
        return null;
    }

    @Override
    public void readFrom(StreamInput in) throws IOException {
        super.readFrom(in);
        nodesIds = in.readStringArray();
        if (in.readBoolean()) {
            timeout = TimeValue.readTimeValue(in);
        }
    }

    @Override
    public void writeTo(StreamOutput out) throws IOException {
        super.writeTo(out);
        out.writeStringArrayNullable(nodesIds);
        if (timeout == null) {
            out.writeBoolean(false);
        } else {
            out.writeBoolean(true);
            timeout.writeTo(out);
        }
    }
}