com.splout.db.examples.PageCountsNameGenerator Maven / Gradle / Ivy

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Splout is a read only, horizontally scalable SQL database that plays well with Hadoop.

There is a newer version: 0.3.0

package com.splout.db.examples;

/*
 * #%L
 * Splout SQL Hadoop library
 * %%
 * Copyright (C) 2012 Datasalt Systems S.L.
 * %%
 * Licensed 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.
 * #L%
 */

import java.io.BufferedWriter;
import java.io.FileWriter;
import java.io.IOException;
import java.net.URISyntaxException;

public class PageCountsNameGenerator {

	public static void main(String[] args) throws URISyntaxException, IOException {
		long nNames = Long.parseLong(args[0]);

		BufferedWriter writer = new BufferedWriter(new FileWriter("names.txt"));

		long namesWritten = 0;

		char firstChar = 'A';
		while(firstChar < 'Z') {
			char secondChar = 'a';
			while(secondChar < 'z') {
				char thirdChar = 'a';
				while(thirdChar < 'z') {
					char fourthChar = 'a';
					while(fourthChar < 'z') {
//						char fifthChar = 'a';
//						while(fifthChar < 'z') {
							String name = "" + firstChar + secondChar + thirdChar + fourthChar;
							writer.write(name + "\n");
							namesWritten++;
							if(namesWritten == nNames) {
								writer.close();
								System.exit(0);
//							}
//							fifthChar++;
						}
						fourthChar++;
					}
					thirdChar++;
				}
				secondChar++;
			}
			firstChar++;
		}
	}

}