IndexRefresh.java

/*
 * Copyright 2016 The Simple File Server Authors
 *
 * Licensed 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.sfs.elasticsearch;

import org.elasticsearch.action.admin.indices.refresh.RefreshRequestBuilder;
import org.sfs.Server;
import org.sfs.VertxContext;
import org.sfs.rx.ToVoid;
import rx.Observable;
import rx.functions.Func1;

import static org.sfs.rx.Defer.aVoid;

public class IndexRefresh implements Func1<Void, Observable<Void>> {

    private final VertxContext<Server> vertxContext;

    public IndexRefresh(VertxContext<Server> vertxContext) {
        this.vertxContext = vertxContext;
    }

    @Override
    public Observable<Void> call(Void aVoid) {
        Elasticsearch elasticsearch = vertxContext.verticle().elasticsearch();
        return aVoid()
                .flatMap(new ListSfsIndexes(vertxContext))
                .flatMap(name -> {
                    RefreshRequestBuilder request =
                            elasticsearch
                                    .get()
                                    .admin()
                                    .indices()
                                    .prepareRefresh(name);
                    return elasticsearch.execute(vertxContext, request, elasticsearch.getDefaultAdminTimeout())
                            .map(refreshResponseOptional -> null);
                })
                .count()
                .map(new ToVoid<>());
    }
}