| /* |
| * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.io.BufferedReader; |
| import java.io.FileReader; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.StringTokenizer; |
| |
| /** |
| * Zone holds information corresponding to a "Zone" part of a time |
| * zone definition file. |
| * |
| * @since 1.4 |
| */ |
| class Zone { |
| // zone name (e.g., "America/Los_Angeles") |
| private String name; |
| |
| // zone records |
| private List<ZoneRec> list; |
| |
| // target zone names for this compilation |
| private static Set<String> targetZones; |
| |
| /** |
| * Constructs a Zone with the specified zone name. |
| * @param name the zone name |
| */ |
| Zone(String name) { |
| this.name = name; |
| list = new ArrayList<ZoneRec>(); |
| } |
| |
| /** |
| * Reads time zone names to be generated, called "target zone |
| * name", from the specified text file and creats an internal hash |
| * table to keep those names. It's assumed that one text line |
| * contains a zone name or comments if it starts with |
| * '#'. Comments can't follow a zone name in a single line. |
| * @param fileName the text file name |
| */ |
| static void readZoneNames(String fileName) { |
| if (fileName == null) { |
| return; |
| } |
| BufferedReader in = null; |
| try { |
| FileReader fr = new FileReader(fileName); |
| in = new BufferedReader(fr); |
| } catch (FileNotFoundException e) { |
| Main.panic("can't open file: " + fileName); |
| } |
| targetZones = new HashSet<String>(); |
| String line; |
| |
| try { |
| while ((line = in.readLine()) != null) { |
| line = line.trim(); |
| if (line.length() == 0 || line.charAt(0) == '#') { |
| continue; |
| } |
| if (!targetZones.add(line)) { |
| Main.warning("duplicated target zone name: " + line); |
| } |
| } |
| in.close(); |
| } catch (IOException e) { |
| Main.panic("IO error: "+e.getMessage()); |
| } |
| } |
| |
| /** |
| * Determines whether the specified zone is one of the target zones. |
| * If no target zones are specified, this method always returns |
| * true for any zone name. |
| * @param zoneName the zone name |
| * @return true if the specified name is a target zone. |
| */ |
| static boolean isTargetZone(String zoneName) { |
| if (targetZones == null) { |
| return true; |
| } |
| return targetZones.contains(zoneName); |
| } |
| |
| /** |
| * Forces to add "MET" to the target zone table. This is because |
| * there is a conflict between Java zone name "WET" and Olson zone |
| * name. |
| */ |
| static void addMET() { |
| if (targetZones != null) { |
| targetZones.add("MET"); |
| } |
| } |
| |
| /** |
| * @return the zone name |
| */ |
| String getName() { |
| return name; |
| } |
| |
| /** |
| * Adds the specified zone record to the zone record list. |
| */ |
| void add(ZoneRec rec) { |
| list.add(rec); |
| } |
| |
| /** |
| * @param index the index at which the zone record in the list is returned. |
| * @return the zone record specified by the index. |
| */ |
| ZoneRec get(int index) { |
| return list.get(index); |
| } |
| |
| /** |
| * @return the size of the zone record list |
| */ |
| int size() { |
| return list.size(); |
| } |
| |
| /** |
| * Resolves the reference to a rule in each zone record. |
| * @param zi the Zoneinfo object with which the rule reference is |
| * resolved. |
| */ |
| void resolve(Zoneinfo zi) { |
| for (int i = 0; i < list.size(); i++) { |
| ZoneRec rec = list.get(i); |
| rec.resolve(zi); |
| } |
| } |
| } |