/*
 * 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.admin.indices.forcemerge;

import org.elasticsearch.action.support.broadcast.BroadcastOperationRequestBuilder;
import org.elasticsearch.client.ElasticsearchClient;

/**
 * A request to force merge one or more indices. In order to force merge all
 * indices, pass an empty array or <tt>null</tt> for the indices.
 * {@link #setMaxNumSegments(int)} allows to control the number of segments to force
 * merge down to. By default, will cause the force merge process to merge down
 * to half the configured number of segments.
 */
public class ForceMergeRequestBuilder extends BroadcastOperationRequestBuilder<ForceMergeRequest, ForceMergeResponse, ForceMergeRequestBuilder> {

    public ForceMergeRequestBuilder(ElasticsearchClient client, ForceMergeAction action) {
        super(client, action, new ForceMergeRequest());
    }

    /**
     * Will force merge the index down to <= maxNumSegments. By default, will
     * cause the merge process to merge down to half the configured number of
     * segments.
     */
    public ForceMergeRequestBuilder setMaxNumSegments(int maxNumSegments) {
        request.maxNumSegments(maxNumSegments);
        return this;
    }

    /**
     * Should the merge only expunge deletes from the index, without full merging.
     * Defaults to full merging (<tt>false</tt>).
     */
    public ForceMergeRequestBuilder setOnlyExpungeDeletes(boolean onlyExpungeDeletes) {
        request.onlyExpungeDeletes(onlyExpungeDeletes);
        return this;
    }

    /**
     * Should flush be performed after the merge. Defaults to <tt>true</tt>.
     */
    public ForceMergeRequestBuilder setFlush(boolean flush) {
        request.flush(flush);
        return this;
    }
}