Mercurial > hg > release > thermostat-1.2
view dev/perflog-analyzer/src/main/java/com/redhat/thermostat/dev/perf/logs/internal/StatsConfigParser.java @ 1660:c6ae78b6f3ac
[Thermostat 1.2] Update copyright year to 2015
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2015-March/013127.html
PR2273
author | Severin Gehwolf <sgehwolf@redhat.com> |
---|---|
date | Wed, 11 Mar 2015 15:07:27 +0100 |
parents | 956c768fd1cd |
children |
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/* * Copyright 2012-2015 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat 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 2, or (at your * option) any later version. * * Thermostat 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 Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.dev.perf.logs.internal; import java.io.File; import com.redhat.thermostat.dev.perf.logs.Direction; import com.redhat.thermostat.dev.perf.logs.SortBy; import com.redhat.thermostat.dev.perf.logs.StatsConfig; public class StatsConfigParser { private static final String OPTION_PREFIX = "--"; static final SortBy DEFAULT_SORT = SortBy.AVG; static final Direction DEFAULT_SORT_DIRECTION = Direction.DSC; private final String[] args; private SortBy parsedSortBy; private Direction parsedDirection; private File parsedFile; // Tri-state flag. null == unset private Boolean parsedShowBacking; public StatsConfigParser(String[] args) { this.args = args; } /** * * @return a {@link StatsConfig} instance corresponding to the * String argument list. * @throws IllegalArgumentException */ public StatsConfig parse() throws IllegalArgumentException { // process options and arguments for (int i = 0; i < args.length; i++) { if (args[i].startsWith(OPTION_PREFIX)) { processOption(args[i].substring(OPTION_PREFIX.length())); } else { processFile(args[i]); } } setDefaultsPerformSanityChecks(); return new StatsConfig(parsedFile, parsedSortBy, parsedDirection, parsedShowBacking); } private void setDefaultsPerformSanityChecks() throws IllegalArgumentException { if (parsedDirection == null) { parsedDirection = DEFAULT_SORT_DIRECTION; // direction is optional } if (parsedSortBy == null) { parsedSortBy = DEFAULT_SORT; // sort is optional } if (parsedFile == null) { throw new IllegalArgumentException("No log file specified"); } if (parsedShowBacking == null) { parsedShowBacking = Boolean.FALSE; } } private void processFile(String fileName) throws IllegalArgumentException { if (parsedFile != null) { throw new IllegalArgumentException("Multiple files specified"); } parsedFile = new File(fileName); } private void processOption(String keyValue) throws IllegalArgumentException { if (keyValue.equals(StatsConfig.SHOW_BACKING)) { setShowBacking(); return; } String[] keyValues = keyValue.split("="); if (keyValues.length != 2) { throw new IllegalArgumentException("Illegal key value pair"); } if (keyValues[0].equals(StatsConfig.SORT_KEY)) { parseSortBy(keyValues[1]); } else if (keyValues[0].equals(StatsConfig.DIRECTION_KEY)) { parseDirection(keyValues[1]); } else { throw new IllegalArgumentException("Illegal option " + OPTION_PREFIX + keyValue); } } private void setShowBacking() throws IllegalArgumentException { if (parsedShowBacking != null) { throw new IllegalArgumentException("Multiple show-backing option specified"); } parsedShowBacking = Boolean.TRUE; } private void parseDirection(String direction) throws IllegalArgumentException { if (parsedDirection != null) { throw new IllegalArgumentException("Multiple direction values specified"); } try { parsedDirection = Direction.valueOf(direction); } catch (IllegalArgumentException e) { throw new IllegalArgumentException("Illegal direction value " + direction, e); } } private void parseSortBy(String sortBy) throws IllegalArgumentException { if (parsedSortBy != null) { throw new IllegalArgumentException("Multiple sort values specified"); } try { parsedSortBy = SortBy.valueOf(sortBy); } catch (IllegalArgumentException e) { throw new IllegalArgumentException("Illegal sort value " + sortBy, e); } } }