org.apache.blur.shell.AddColumnDefinitionCommand.java Source code

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Here is the source code for org.apache.blur.shell.AddColumnDefinitionCommand.java

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package org.apache.blur.shell;

/**
 * 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.
 */
import java.io.PrintWriter;
import java.io.Writer;

import org.apache.blur.thirdparty.thrift_0_9_0.TException;
import org.apache.blur.thrift.generated.Blur;
import org.apache.blur.thrift.generated.BlurException;
import org.apache.blur.thrift.generated.ColumnDefinition;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.OptionBuilder;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.commons.cli.PosixParser;

public class AddColumnDefinitionCommand extends Command implements TableFirstArgCommand {

    @Override
    public void doit(PrintWriter out, Blur.Iface client, String[] args)
            throws CommandException, TException, BlurException {
        if (args.length < 5) {
            throw new CommandException("Invalid args: " + help());
        }
        CommandLine cmd = parse(args, out);

        ColumnDefinition columnDefinition = new ColumnDefinition();
        columnDefinition.setFamily(args[2]);
        columnDefinition.setColumnName(args[3]);
        columnDefinition.setFieldType(args[4]);
        if (cmd.hasOption("s")) {
            columnDefinition.setSubColumnName(cmd.getOptionValue("s"));
        }
        if (cmd.hasOption("F")) {
            columnDefinition.setFieldLessIndexed(true);
        }
        if (cmd.hasOption("S")) {
            columnDefinition.setSortable(true);
        }
        if (cmd.hasOption("p")) {
            Option[] options = cmd.getOptions();
            for (Option option : options) {
                if (option.getOpt().equals("p")) {
                    String[] values = option.getValues();
                    columnDefinition.putToProperties(values[0], values[1]);
                }
            }
        }
        if (cmd.hasOption('M')) {
            columnDefinition.setMultiValueField(true);
        } else {
            columnDefinition.setMultiValueField(false);
        }

        if (!client.addColumnDefinition(args[1], columnDefinition)) {
            out.println(
                    "Column Definition was not added, check to see if the column has already been added to the table.");
        }
    }

    @Override
    public String description() {
        return "Defines a new column in the named table. '-F' option is for fieldless searching, the '-S' is for sortability and '-M' is for allowing multiple values per column.";
    }

    @Override
    public String usage() {
        return "<table name> <family> <column name> <type> [-s <sub column name>] [-F] [-S] [-M] [-p name value]*";
    }

    @Override
    public String name() {
        return "definecolumn";
    }

    @SuppressWarnings("static-access")
    private static CommandLine parse(String[] otherArgs, Writer out) {
        Options options = new Options();
        options.addOption(OptionBuilder.withArgName("sub column name").hasArg()
                .withDescription("The sub column name of the new column definition.").create("s"));
        options.addOption(OptionBuilder
                .withDescription(
                        "Should the column definition be definied as a field less indexing column definition.")
                .create("F"));
        options.addOption(OptionBuilder.withArgName("name value").hasArgs(2)
                .withDescription("Sets the properties for this column definition.").create("p"));
        options.addOption(OptionBuilder
                .withDescription("Should the column definition be definied as a sortable column definition.")
                .create("S"));
        options.addOption(OptionBuilder
                .withDescription("Should the column definition be definied as a multi value column definition.")
                .create("M"));

        CommandLineParser parser = new PosixParser();
        CommandLine cmd = null;
        try {
            cmd = parser.parse(options, otherArgs);
        } catch (ParseException e) {
            HelpFormatter formatter = new HelpFormatter();
            PrintWriter pw = new PrintWriter(out, true);
            formatter.printHelp(pw, HelpFormatter.DEFAULT_WIDTH, "definecolumn", null, options,
                    HelpFormatter.DEFAULT_LEFT_PAD, HelpFormatter.DEFAULT_DESC_PAD, null, false);
            return null;
        }
        return cmd;
    }

}