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/*******************************************************************************
 * Copyright (C) 2018 Team Loadcoder
 * 
 * This file is part of Loadcoder.
 * 
 * Loadcoder is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Loadcoder is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 ******************************************************************************/
package com.loadcoder.statics;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.loadcoder.load.LoadUtility;
import com.loadcoder.result.ResultFormatter;
import com.loadcoder.result.TransactionExecutionResult;

public class Formatter {

	/**
	 * Default ResultFormatter that formats TransactionExecutionResults to and from
	 * xml formatted result file
	 */
	public static final ResultFormatter SIMPLE_RESULT_FORMATTER = new SimpleResultFormatter();

	/**
	 * This object is deprecated and will be removed. Use the
	 * SIMPLE_RESULT_FORMATTER instead.
	 */
	@Deprecated
	public static ResultFormatter RESULT_FORMATTER_LONG_VARIABLE_NAMES = new ResultFormatter() {

		private String getValueOfParameter(String line, String parameter) {
			String[] splitted = line.split(parameter + "=\"");
			String value = splitted[1].split("\"")[0];
			return value;
		}

		/**
		 * Generate TransactionExecutionResult from the provided String
		 * 
		 * @param transactionResult is the String used to generate the
		 *                          TransactionExecutionResult
		 * @return the generated TransactionExecutionResult
		 */
		private TransactionExecutionResult toTransactionExecutionResult(String transactionResult) {

			String name = getValueOfParameter(transactionResult, "name");
			String ts = getValueOfParameter(transactionResult, "ts");
			String status = getValueOfParameter(transactionResult, "status");
			String rt = getValueOfParameter(transactionResult, "rt");
			String message = null;
			String threadId = null;

			try {
				threadId = getValueOfParameter(transactionResult, "thread");
			} catch (RuntimeException rte) {
				// message is optional. OK with silent rte
			}

			try {
				message = getValueOfParameter(transactionResult, "message");
			} catch (RuntimeException rte) {
				// message is optional. OK with silent rte
			}
			return new TransactionExecutionResult(name, new Long(ts), new Long(rt), new Boolean(status), message,
					threadId);
		}

		@Override
		public String toString(TransactionExecutionResult transactionExecutionResult) {
			String msg = transactionExecutionResult.getMessage() == null ? ""
					: String.format("message=\"%s\"", transactionExecutionResult.getMessage()) + " ";
			String thread = transactionExecutionResult.getThreadId() == null ? ""
					: String.format("thread=\"%s\"", transactionExecutionResult.getThreadId()) + " ";
			String asString = String.format("",
					transactionExecutionResult.getName(), transactionExecutionResult.getTs(),
					transactionExecutionResult.getValue(), transactionExecutionResult.isStatus());

			return asString;
		}

		@Override
		public Map> toResultLists(File file) throws IOException {
			Logger log = LoggerFactory.getLogger(Formatter.class);

			Map> transactions = new HashMap>();
			int lineNumber = 0;
			log.debug("reading file {}", file);
			List fileAsLineList = LoadUtility.readFile(file);
			log.debug("file sucessfully read!");

			for (String line : fileAsLineList) {

				// skip empty lines
				if (line.length() < 2)
					continue;

				lineNumber++;
				try {
					TransactionExecutionResult result = toTransactionExecutionResult(line);
					List s = transactions.get(result.getName());

					if (s == null) {
						s = new ArrayList();
						transactions.put(result.getName(), s);
					}
					s.add(result);
				} catch (ArrayIndexOutOfBoundsException aioube) {
					log.debug(String.format("Line %s in file %s could not be formatted", lineNumber,
							file.getAbsolutePath()));
				}
			}
			return transactions;
		}
	};

}