org.apache.accumulo.server.test.CreateTestTable.java Source code

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Here is the source code for org.apache.accumulo.server.test.CreateTestTable.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 org.apache.accumulo.server.test;

import java.util.Map.Entry;
import java.util.TreeSet;

import org.apache.accumulo.core.Constants;
import org.apache.accumulo.core.client.BatchWriter;
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.server.client.HdfsZooInstance;
import org.apache.commons.cli.BasicParser;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.Parser;
import org.apache.hadoop.io.Text;

public class CreateTestTable {
    private static Option usernameOpt;
    private static Option passwordOpt;
    private static Option readonlyOpt;

    private static Options opts;

    // root user is needed for tests
    private static String user;
    private static String password;
    private static boolean readOnly = false;
    private static int count = 10000;

    private static void readBack(Connector conn, int last) throws Exception {
        Scanner scanner = conn.createScanner("mrtest1", Constants.NO_AUTHS);
        int count = 0;
        for (Entry<Key, Value> elt : scanner) {
            String expected = String.format("%05d", count);
            assert (elt.getKey().getRow().toString().equals(expected));
            count++;
        }
        assert (last == count);
    }

    public static void setupOptions() {
        usernameOpt = new Option("username", "username", true, "username");
        passwordOpt = new Option("password", "password", true, "password");
        readonlyOpt = new Option("readonly", "readonly", false, "read only");

        opts = new Options();

        opts.addOption(usernameOpt);
        opts.addOption(passwordOpt);
        opts.addOption(readonlyOpt);
    }

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

        Parser p = new BasicParser();
        CommandLine cl = null;

        try {
            cl = p.parse(opts, args);
        } catch (ParseException e) {
            throw new RuntimeException(e);
        }
        String[] rargs = cl.getArgs();
        if (rargs.length != 1) {
            HelpFormatter hf = new HelpFormatter();
            hf.printHelp(" <count> ", opts);
        }
        count = Integer.parseInt(rargs[0]);
        readOnly = cl.hasOption(readonlyOpt.getOpt());
        user = cl.getOptionValue(usernameOpt.getOpt(), "root");
        password = cl.getOptionValue(passwordOpt.getOpt(), "secret");

        // create the test table within accumulo
        String table = "mrtest1";
        Connector connector;

        connector = HdfsZooInstance.getInstance().getConnector(user, password.getBytes());

        if (!readOnly) {
            TreeSet<Text> keys = new TreeSet<Text>();
            for (int i = 0; i < count / 100; i++) {
                keys.add(new Text(String.format("%05d", i * 100)));
            }

            // presplit
            connector.tableOperations().create(table);
            connector.tableOperations().addSplits(table, keys);
            BatchWriter b = connector.createBatchWriter(table, 10000000l, 1000000l, 10);

            // populate
            for (int i = 0; i < count; i++) {
                Mutation m = new Mutation(new Text(String.format("%05d", i)));
                m.put(new Text("col" + Integer.toString((i % 3) + 1)), new Text("qual"),
                        new Value("junk".getBytes()));
                b.addMutation(m);
            }

            b.close();

        }

        readBack(connector, count);

    }
}