io.covert.dns.storage.accumulo.mutgen.EdgeMutationGeneratorFactory.java Source code

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Here is the source code for io.covert.dns.storage.accumulo.mutgen.EdgeMutationGeneratorFactory.java

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/*
 * 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 io.covert.dns.storage.accumulo.mutgen;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.mapreduce.Job;

import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimap;

public class EdgeMutationGeneratorFactory implements MutationGeneratorFactory {

    @Override
    public MutationGenerator create(Configuration conf) throws Exception {

        Multimap<String, String> edges = HashMultimap.create();
        for (String edge : conf.get("edge.mutation.generator.edges").split(",")) {
            String names[] = edge.split(":", 2);
            edges.put(names[0], names[1]);
        }

        System.out.println(edges);

        return new EdgeMutationGenerator(conf.get("edge.mutation.generator.table"),
                conf.get("edge.mutation.generator.data.type"), edges,
                conf.getBoolean("edge.mutation.generator.bidirection", true),
                conf.getBoolean("edge.mutation.generator.univar.stats", true));
    }

    public static void configure(Job job, String table, String dataType, boolean bidirectional,
            boolean univariateStats, Multimap<String, String> edges) {
        Configuration conf = job.getConfiguration();

        conf.set("edge.mutation.generator.table", table);
        conf.set("edge.mutation.generator.data.type", dataType);

        conf.setBoolean("edge.mutation.generator.bidirection", bidirectional);
        conf.setBoolean("edge.mutation.generator.univar.stats", univariateStats);

        StringBuilder s = new StringBuilder();
        boolean first = true;
        for (String name1 : edges.keySet()) {
            for (String name2 : edges.get(name1)) {
                if (first) {
                    first = false;
                    s.append(name1).append(":").append(name2);
                } else {
                    s.append(",").append(name1).append(":").append(name2);
                }
            }
        }
        conf.set("edge.mutation.generator.edges", s.toString());
    }
}