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/*******************************************************************************
 * Copyright 2015
 * Ubiquitous Knowledge Processing (UKP) Lab
 * Technische Universität Darmstadt
 *
 * 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.
 *******************************************************************************/
package de.tudarmstadt.ukp.wikipedia.timemachine.domain;

import de.tudarmstadt.ukp.wikipedia.wikimachine.debug.ILogger;
import de.tudarmstadt.ukp.wikipedia.wikimachine.domain.Configuration;
import de.tudarmstadt.ukp.wikipedia.wikimachine.domain.ISnapshotGenerator;
import de.tudarmstadt.ukp.wikipedia.wikimachine.factory.IEnvironmentFactory;
import de.tudarmstadt.ukp.wikipedia.wikimachine.factory.SpringFactory;

/**
 * This is the main class of the DBMapping Tool of the JWPL.

 * The main method gets the path of a configuration file as
 * argument

 * 

 * 
 * Refactored on 16 April 2009 by Ivan Galkin .
 * 
 * 
 * 
 */
public class JWPLTimeMachine {

	private static final IEnvironmentFactory environmentFactory = SpringFactory
			.getInstance();

	private static final long startTime = System.currentTimeMillis();
	private static final ILogger logger = environmentFactory.getLogger();

	/**
	 * Checks given arguments
	 * 
	 * @param args
	 * 

	 *            args[0] the settings file like described in
	 *            {@link SettingsXML}

	 * 
	 * @return true if all necessary arguments are given and false otherwise
	 * 
	 * @see SettingsXML
	 */
	private static boolean checkArgs(String[] args) {
		boolean result = (args.length > 0);
		if (!result) {
			System.out
					.println("Usage: java -jar JWPLTimeMachine.jar ");
		}
		return result;
	}

	public static void main(String[] args) {

		try {
			if (checkArgs(args)) {
				logger.log("parsing configuration file....");
				Configuration config = SettingsXML.loadConfiguration(args[0],
						logger);
				TimeMachineFiles files = SettingsXML.loadFiles(args[0], logger);

				if (config != null && files != null) {
					if (files.checkAll() && config.checkTimeConfig()) {
						logger.log("processing data ...");

						ISnapshotGenerator generator = environmentFactory
								.getSnapshotGenerator();
						generator.setConfiguration(config);
						generator.setFiles(files);
						generator.start();

						logger.log("End of the application. Working time = "
								+ String.valueOf(System.currentTimeMillis()
										- startTime) + " ms");
					}
				}
			}
		} catch (Exception e) {
			logger.log(e);
		}
	}
}