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• LoggingTimestampConverterTool.java

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kieker.tools.loggingTimestampConverter.LoggingTimestampConverterTool Maven / Gradle / Ivy

/***************************************************************************
 * Copyright 2013 Kieker Project (http://kieker-monitoring.net)
 *
 * 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 kieker.tools.loggingTimestampConverter;

import java.util.Comparator;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

import org.apache.commons.cli.BasicParser;
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 kieker.common.logging.Log;
import kieker.common.logging.LogFactory;
import kieker.tools.util.CLIHelpFormatter;
import kieker.tools.util.LoggingTimestampConverter;

/**
 * This tool can be used to convert timestamps.
 * 
 * @author Andre van Hoorn
 * 
 * @since 1.1
 */
public final class LoggingTimestampConverterTool {

	static final List OPTIONS = new CopyOnWriteArrayList(); // NOPMD package for inner class
	private static final Log LOG = LogFactory.getLog(LoggingTimestampConverterTool.class);
	private static final CommandLineParser CMDL_PARSER = new BasicParser();
	private static final HelpFormatter CMD_HELP_FORMATTER = new CLIHelpFormatter();
	private static final Options CMDL_OPTS = new Options();
	private static final String CMD_OPT_NAME_TIMESTAMPS = "timestamps";
	private static CommandLine cmdl;
	private static String[] timestampsStr;
	private static long[] timestampsLong;

	static {
		LoggingTimestampConverterTool.initializeOptions();
	}

	/**
	 * Private constructor to avoid instantiation.
	 */
	private LoggingTimestampConverterTool() {}

	/**
	 * This method initializes some static fields.
	 */
	@SuppressWarnings({ "static-access", "static" })
	private static final void initializeOptions() {
		OPTIONS.add(OptionBuilder.withLongOpt(CMD_OPT_NAME_TIMESTAMPS)
				.withArgName("timestamp1 ... timestampN").hasArgs().isRequired(true).withDescription("List of timestamps (UTC timezone) to convert").create("t"));
		for (final Option o : OPTIONS) {
			CMDL_OPTS.addOption(o);
		}
		CMD_HELP_FORMATTER.setOptionComparator(new Comparator