com.accumulobook.designs.lexicoder.CustomLexicoderExample.java Source code

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Here is the source code for com.accumulobook.designs.lexicoder.CustomLexicoderExample.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 com.accumulobook.designs.lexicoder;

import com.google.common.net.InetAddresses;
import com.accumulobook.ExampleMiniCluster;
import java.net.Inet4Address;
import java.net.InetAddress;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import org.apache.accumulo.core.client.BatchWriter;
import org.apache.accumulo.core.client.BatchWriterConfig;
import org.apache.accumulo.core.client.Connector;
import org.apache.accumulo.core.client.Scanner;
import org.apache.accumulo.core.data.Key;
import org.apache.accumulo.core.data.Mutation;
import org.apache.accumulo.core.data.Value;
import org.apache.accumulo.core.security.Authorizations;

public class CustomLexicoderExample {

    public static void main(String[] args) throws Exception {

        Connector conn = ExampleMiniCluster.getConnector();

        List<String> addrs = new ArrayList<>();

        addrs.add("192.168.1.1");
        addrs.add("192.168.1.2");
        addrs.add("192.168.11.1");
        addrs.add("192.168.11.11");
        addrs.add("192.168.11.100");
        addrs.add("192.168.11.101");
        addrs.add("192.168.100.1");
        addrs.add("192.168.100.2");
        addrs.add("192.168.100.12");

        conn.tableOperations().create("addresses");

        BatchWriter writer = conn.createBatchWriter("addresses", new BatchWriterConfig());

        // ingest using just address strings
        for (String addrString : addrs) {

            Mutation m = new Mutation(addrString);
            m.put("", "address string", addrString);

            writer.addMutation(m);
        }

        writer.flush();

        System.out.println("sort order using strings");
        Scanner scanner = conn.createScanner("addresses", Authorizations.EMPTY);
        for (Map.Entry<Key, Value> e : scanner) {
            System.out.println(e.getValue());
        }

        // delete rows
        conn.tableOperations().deleteRows("addresses", null, null);

        // ingest using lexicoder
        Inet4AddressLexicoder lexicoder = new Inet4AddressLexicoder();

        for (String addrString : addrs) {

            InetAddress addr = InetAddresses.forString(addrString);

            byte[] addrBytes = lexicoder.encode((Inet4Address) addr);

            Mutation m = new Mutation(addrBytes);
            m.put("", "address string", addrString);

            writer.addMutation(m);
        }

        writer.close();

        // scan again
        System.out.println("\nsort order using lexicoder");
        for (Map.Entry<Key, Value> e : scanner) {
            System.out.println(e.getValue());
        }
    }
}