webindex/modules/data/src/main/java/webindex/data/FluoApp.java

/*
 * 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 webindex.data;

import org.apache.fluo.api.config.FluoConfiguration;
import org.apache.fluo.recipes.accumulo.export.function.AccumuloExporter;
import org.apache.fluo.recipes.core.data.RowHasher;
import org.apache.fluo.recipes.core.export.ExportQueue;
import org.apache.fluo.recipes.kryo.KryoSimplerSerializer;
import webindex.core.models.export.IndexUpdate;
import webindex.data.fluo.DomainCombineQ;
import webindex.data.fluo.PageObserver;
import webindex.data.fluo.UriCombineQ;
import webindex.data.fluo.WebindexObservers;
import webindex.serialization.WebindexKryoFactory;

public class FluoApp {

  public static final String EXPORT_QUEUE_ID = "eq";

  public static void configureApplication(FluoConfiguration connectionConfig,
      FluoConfiguration appConfig, String exportTable, int numBuckets, int numTablets) {

    appConfig.setObserverProvider(WebindexObservers.class);

    KryoSimplerSerializer.setKryoFactory(appConfig, WebindexKryoFactory.class);

    UriCombineQ.configure(appConfig, numBuckets, numTablets);
    DomainCombineQ.configure(appConfig, numBuckets, numTablets);

    ExportQueue.configure(EXPORT_QUEUE_ID).keyType(String.class).valueType(IndexUpdate.class)
        .buckets(numBuckets).bucketsPerTablet(numBuckets / numTablets).save(appConfig);

    AccumuloExporter.configure(EXPORT_QUEUE_ID)
        .instance(connectionConfig.getAccumuloInstance(), connectionConfig.getAccumuloZookeepers())
        .credentials(connectionConfig.getAccumuloUser(), connectionConfig.getAccumuloPassword())
        .table(exportTable).save(appConfig);

    RowHasher.configure(appConfig, PageObserver.getPageRowHasher().getPrefix(), numTablets);
  }
}