--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/make/jdk/src/classes/build/tools/tzdb/TzdbZoneRulesCompiler.java Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,314 @@
+/*
+ * Copyright (c) 2012, 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.
+ */
+
+/*
+ * Copyright (c) 2009-2012, Stephen Colebourne & Michael Nascimento Santos
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * * Neither the name of JSR-310 nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package build.tools.tzdb;
+
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.text.ParsePosition;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.NoSuchElementException;
+import java.util.Scanner;
+import java.util.SortedMap;
+import java.util.TreeMap;
+import java.util.regex.Matcher;
+import java.util.regex.MatchResult;
+import java.util.regex.Pattern;
+
+/**
+ * A compiler that reads a set of TZDB time-zone files and builds a single
+ * combined TZDB data file.
+ *
+ * @since 1.8
+ */
+public final class TzdbZoneRulesCompiler {
+
+ public static void main(String[] args) {
+ new TzdbZoneRulesCompiler().compile(args);
+ }
+
+ private void compile(String[] args) {
+ if (args.length < 2) {
+ outputHelp();
+ return;
+ }
+ Path srcDir = null;
+ Path dstFile = null;
+ String version = null;
+ // parse args/options
+ int i;
+ for (i = 0; i < args.length; i++) {
+ String arg = args[i];
+ if (!arg.startsWith("-")) {
+ break;
+ }
+ if ("-srcdir".equals(arg)) {
+ if (srcDir == null && ++i < args.length) {
+ srcDir = Paths.get(args[i]);
+ continue;
+ }
+ } else if ("-dstfile".equals(arg)) {
+ if (dstFile == null && ++i < args.length) {
+ dstFile = Paths.get(args[i]);
+ continue;
+ }
+ } else if ("-verbose".equals(arg)) {
+ if (!verbose) {
+ verbose = true;
+ continue;
+ }
+ } else if (!"-help".equals(arg)) {
+ System.out.println("Unrecognised option: " + arg);
+ }
+ outputHelp();
+ return;
+ }
+ // check source directory
+ if (srcDir == null) {
+ System.err.println("Source directory must be specified using -srcdir");
+ System.exit(1);
+ }
+ if (!Files.isDirectory(srcDir)) {
+ System.err.println("Source does not exist or is not a directory: " + srcDir);
+ System.exit(1);
+ }
+ // parse source file names
+ if (i == args.length) {
+ i = 0;
+ args = new String[] {"africa", "antarctica", "asia", "australasia", "europe",
+ "northamerica","southamerica", "backward", "etcetera" };
+ System.out.println("Source filenames not specified, using default set ( ");
+ for (String name : args) {
+ System.out.printf(name + " ");
+ }
+ System.out.println(")");
+ }
+ // source files in this directory
+ List<Path> srcFiles = new ArrayList<>();
+ for (; i < args.length; i++) {
+ Path file = srcDir.resolve(args[i]);
+ if (Files.exists(file)) {
+ srcFiles.add(file);
+ } else {
+ System.err.println("Source directory does not contain source file: " + args[i]);
+ System.exit(1);
+ }
+ }
+ // check destination file
+ if (dstFile == null) {
+ dstFile = srcDir.resolve("tzdb.dat");
+ } else {
+ Path parent = dstFile.getParent();
+ if (parent != null && !Files.exists(parent)) {
+ System.err.println("Destination directory does not exist: " + parent);
+ System.exit(1);
+ }
+ }
+ try {
+ // get tzdb source version
+ Matcher m = Pattern.compile("tzdata(?<ver>[0-9]{4}[A-z])")
+ .matcher(new String(Files.readAllBytes(srcDir.resolve("VERSION")),
+ "ISO-8859-1"));
+ if (m.find()) {
+ version = m.group("ver");
+ } else {
+ System.exit(1);
+ System.err.println("Source directory does not contain file: VERSION");
+ }
+
+ // load source files
+ printVerbose("Compiling TZDB version " + version);
+ TzdbZoneRulesProvider provider = new TzdbZoneRulesProvider(srcFiles);
+
+ // build zone rules
+ printVerbose("Building rules");
+
+ // Build the rules, zones and links into real zones.
+ SortedMap<String, ZoneRules> builtZones = new TreeMap<>();
+
+ // build zones
+ for (String zoneId : provider.getZoneIds()) {
+ printVerbose("Building zone " + zoneId);
+ builtZones.put(zoneId, provider.getZoneRules(zoneId));
+ }
+
+ // build aliases
+ Map<String, String> links = provider.getAliasMap();
+ for (String aliasId : links.keySet()) {
+ String realId = links.get(aliasId);
+ printVerbose("Linking alias " + aliasId + " to " + realId);
+ ZoneRules realRules = builtZones.get(realId);
+ if (realRules == null) {
+ realId = links.get(realId); // try again (handle alias liked to alias)
+ printVerbose("Relinking alias " + aliasId + " to " + realId);
+ realRules = builtZones.get(realId);
+ if (realRules == null) {
+ throw new IllegalArgumentException("Alias '" + aliasId + "' links to invalid zone '" + realId);
+ }
+ links.put(aliasId, realId);
+ }
+ builtZones.put(aliasId, realRules);
+ }
+
+ // output to file
+ printVerbose("Outputting tzdb file: " + dstFile);
+ outputFile(dstFile, version, builtZones, links);
+ } catch (Exception ex) {
+ System.out.println("Failed: " + ex.toString());
+ ex.printStackTrace();
+ System.exit(1);
+ }
+ System.exit(0);
+ }
+
+ /**
+ * Output usage text for the command line.
+ */
+ private static void outputHelp() {
+ System.out.println("Usage: TzdbZoneRulesCompiler <options> <tzdb source filenames>");
+ System.out.println("where options include:");
+ System.out.println(" -srcdir <directory> Where to find tzdb source directory (required)");
+ System.out.println(" -dstfile <file> Where to output generated file (default srcdir/tzdb.dat)");
+ System.out.println(" -help Print this usage message");
+ System.out.println(" -verbose Output verbose information during compilation");
+ System.out.println(" The source directory must contain the unpacked tzdb files, such as asia or europe");
+ }
+
+ /**
+ * Outputs the file.
+ */
+ private void outputFile(Path dstFile, String version,
+ SortedMap<String, ZoneRules> builtZones,
+ Map<String, String> links) {
+ try (DataOutputStream out = new DataOutputStream(Files.newOutputStream(dstFile))) {
+ // file version
+ out.writeByte(1);
+ // group
+ out.writeUTF("TZDB");
+ // versions
+ out.writeShort(1);
+ out.writeUTF(version);
+ // regions
+ String[] regionArray = builtZones.keySet().toArray(new String[builtZones.size()]);
+ out.writeShort(regionArray.length);
+ for (String regionId : regionArray) {
+ out.writeUTF(regionId);
+ }
+ // rules -- hashset -> remove the dup
+ List<ZoneRules> rulesList = new ArrayList<>(new HashSet<>(builtZones.values()));
+ out.writeShort(rulesList.size());
+ ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
+ for (ZoneRules rules : rulesList) {
+ baos.reset();
+ DataOutputStream dataos = new DataOutputStream(baos);
+ rules.writeExternal(dataos);
+ dataos.close();
+ byte[] bytes = baos.toByteArray();
+ out.writeShort(bytes.length);
+ out.write(bytes);
+ }
+ // link version-region-rules
+ out.writeShort(builtZones.size());
+ for (Map.Entry<String, ZoneRules> entry : builtZones.entrySet()) {
+ int regionIndex = Arrays.binarySearch(regionArray, entry.getKey());
+ int rulesIndex = rulesList.indexOf(entry.getValue());
+ out.writeShort(regionIndex);
+ out.writeShort(rulesIndex);
+ }
+ // alias-region
+ out.writeShort(links.size());
+ for (Map.Entry<String, String> entry : links.entrySet()) {
+ int aliasIndex = Arrays.binarySearch(regionArray, entry.getKey());
+ int regionIndex = Arrays.binarySearch(regionArray, entry.getValue());
+ out.writeShort(aliasIndex);
+ out.writeShort(regionIndex);
+ }
+ out.flush();
+ } catch (Exception ex) {
+ System.out.println("Failed: " + ex.toString());
+ ex.printStackTrace();
+ System.exit(1);
+ }
+ }
+
+ /** Whether to output verbose messages. */
+ private boolean verbose;
+
+ /**
+ * private contructor
+ */
+ private TzdbZoneRulesCompiler() {}
+
+ /**
+ * Prints a verbose message.
+ *
+ * @param message the message, not null
+ */
+ private void printVerbose(String message) {
+ if (verbose) {
+ System.out.println(message);
+ }
+ }
+}