49 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
50 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
51 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
52 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
53 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
54 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
55 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
56 */
57 package build.tools.tzdb;
58
59 import java.io.ByteArrayOutputStream;
60 import java.io.DataOutputStream;
61 import java.nio.charset.StandardCharsets;
62 import java.nio.file.Files;
63 import java.nio.file.Path;
64 import java.nio.file.Paths;
65 import java.text.ParsePosition;
66 import java.util.ArrayList;
67 import java.util.Arrays;
68 import java.util.HashMap;
69 import java.util.HashSet;
70 import java.util.List;
71 import java.util.Map;
72 import java.util.NoSuchElementException;
73 import java.util.Scanner;
74 import java.util.SortedMap;
75 import java.util.TreeMap;
76 import java.util.regex.Matcher;
77 import java.util.regex.MatchResult;
78 import java.util.regex.Pattern;
79
80 /**
81 * A compiler that reads a set of TZDB time-zone files and builds a single
82 * combined TZDB data file.
83 *
84 * @since 1.8
85 */
86 public final class TzdbZoneRulesCompiler {
87
88 public static void main(String[] args) {
89 new TzdbZoneRulesCompiler().compile(args);
240 * Outputs the file.
241 */
242 private void outputFile(Path dstFile, String version,
243 SortedMap<String, ZoneRules> builtZones,
244 Map<String, String> links) {
245 try (DataOutputStream out = new DataOutputStream(Files.newOutputStream(dstFile))) {
246 // file version
247 out.writeByte(1);
248 // group
249 out.writeUTF("TZDB");
250 // versions
251 out.writeShort(1);
252 out.writeUTF(version);
253 // regions
254 String[] regionArray = builtZones.keySet().toArray(new String[builtZones.size()]);
255 out.writeShort(regionArray.length);
256 for (String regionId : regionArray) {
257 out.writeUTF(regionId);
258 }
259 // rules -- hashset -> remove the dup
260 List<ZoneRules> rulesList = new ArrayList<>(new HashSet<>(builtZones.values()));
261 out.writeShort(rulesList.size());
262 ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
263 for (ZoneRules rules : rulesList) {
264 baos.reset();
265 DataOutputStream dataos = new DataOutputStream(baos);
266 rules.writeExternal(dataos);
267 dataos.close();
268 byte[] bytes = baos.toByteArray();
269 out.writeShort(bytes.length);
270 out.write(bytes);
271 }
272 // link version-region-rules
273 out.writeShort(builtZones.size());
274 for (Map.Entry<String, ZoneRules> entry : builtZones.entrySet()) {
275 int regionIndex = Arrays.binarySearch(regionArray, entry.getKey());
276 int rulesIndex = rulesList.indexOf(entry.getValue());
277 out.writeShort(regionIndex);
278 out.writeShort(rulesIndex);
279 }
280 // alias-region
|
49 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
50 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
51 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
52 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
53 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
54 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
55 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
56 */
57 package build.tools.tzdb;
58
59 import java.io.ByteArrayOutputStream;
60 import java.io.DataOutputStream;
61 import java.nio.charset.StandardCharsets;
62 import java.nio.file.Files;
63 import java.nio.file.Path;
64 import java.nio.file.Paths;
65 import java.text.ParsePosition;
66 import java.util.ArrayList;
67 import java.util.Arrays;
68 import java.util.HashMap;
69 import java.util.LinkedHashSet;
70 import java.util.List;
71 import java.util.Map;
72 import java.util.NoSuchElementException;
73 import java.util.Scanner;
74 import java.util.SortedMap;
75 import java.util.TreeMap;
76 import java.util.regex.Matcher;
77 import java.util.regex.MatchResult;
78 import java.util.regex.Pattern;
79
80 /**
81 * A compiler that reads a set of TZDB time-zone files and builds a single
82 * combined TZDB data file.
83 *
84 * @since 1.8
85 */
86 public final class TzdbZoneRulesCompiler {
87
88 public static void main(String[] args) {
89 new TzdbZoneRulesCompiler().compile(args);
240 * Outputs the file.
241 */
242 private void outputFile(Path dstFile, String version,
243 SortedMap<String, ZoneRules> builtZones,
244 Map<String, String> links) {
245 try (DataOutputStream out = new DataOutputStream(Files.newOutputStream(dstFile))) {
246 // file version
247 out.writeByte(1);
248 // group
249 out.writeUTF("TZDB");
250 // versions
251 out.writeShort(1);
252 out.writeUTF(version);
253 // regions
254 String[] regionArray = builtZones.keySet().toArray(new String[builtZones.size()]);
255 out.writeShort(regionArray.length);
256 for (String regionId : regionArray) {
257 out.writeUTF(regionId);
258 }
259 // rules -- hashset -> remove the dup
260 List<ZoneRules> rulesList = new ArrayList<>(new LinkedHashSet<>(builtZones.values()));
261 out.writeShort(rulesList.size());
262 ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
263 for (ZoneRules rules : rulesList) {
264 baos.reset();
265 DataOutputStream dataos = new DataOutputStream(baos);
266 rules.writeExternal(dataos);
267 dataos.close();
268 byte[] bytes = baos.toByteArray();
269 out.writeShort(bytes.length);
270 out.write(bytes);
271 }
272 // link version-region-rules
273 out.writeShort(builtZones.size());
274 for (Map.Entry<String, ZoneRules> entry : builtZones.entrySet()) {
275 int regionIndex = Arrays.binarySearch(regionArray, entry.getKey());
276 int rulesIndex = rulesList.indexOf(entry.getValue());
277 out.writeShort(regionIndex);
278 out.writeShort(rulesIndex);
279 }
280 // alias-region
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