--- /dev/null 2013-01-18 16:17:08.886776012 -0800 +++ new/src/share/classes/java/time/calendar/HijrahDeviationReader.java 2013-01-22 16:57:48.000000000 -0800 @@ -0,0 +1,246 @@ +/* + * 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) 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 java.time.calendar; + + +import java.io.BufferedReader; +import java.io.File; +import java.io.FileInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.io.InputStreamReader; +import java.nio.file.FileSystems; +import java.security.AccessController; +import java.text.ParseException; +import java.time.LocalDate; +import java.time.format.DateTimeFormatters; +import java.time.temporal.ChronoField; +import java.time.temporal.ChronoLocalDate; +import java.util.Arrays; +import java.util.function.Block; + +/** + * A reader for Hijrah Deviation files. + *

+ * For each Hijrah calendar a deviation file is used + * to modify the initial Hijrah calendar by changing the length of + * individual months. + *

+ * The default location of the deviation files is + * {@code + FILE_SEP + "lib"}. + * The deviation files are named {@code "hijrah_" + ID}. + *

+ * The deviation file for a calendar can be overridden by defining the + * property {@code java.time.calendar.HijrahChrono.File.hijrah_} + * with the full pathname of the deviation file. + *

+ * The deviation file is read line by line: + *

+ *

Example:

+ *
# Deviation data for islamicc calendar
+ * Mar-23-2012 -1
+ * Apr-22-2012 +1
+ * May-21-2012 -1
+ * Dec-14-2012 +1
+ * 
+ * + * @since 1.8 + */ +final class HijrahDeviationReader { + + /** + * Default prefix for name of deviation file; suffix is typeId. + */ + private static final String DEFAULT_CONFIG_FILE_PREFIX = "hijrah_"; + + /** + * Read Hijrah_deviation.cfg file. The config file contains the deviation + * data with format defined in the class javadoc. + * + * @param typeId the name of the calendar + * @param calendarType the calendar type + * @return {@code true} if the file was read and each entry accepted by the + * Block; else {@code false} no configuration was done + * + * @throws IOException for zip/jar file handling exception. + * @throws ParseException if the format of the configuration file is wrong. + */ + static boolean readDeviation(String typeId, String calendarType, + Block block) throws IOException, ParseException { + InputStream is = getConfigFileInputStream(typeId); + if (is != null) { + try (BufferedReader br = new BufferedReader(new InputStreamReader(is))) { + String line = ""; + int num = 0; + while ((line = br.readLine()) != null) { + num++; + HijrahChrono.Deviation entry = parseLine(line, num); + if (entry != null) { + block.accept(entry); + } + } + } + return true; + } + return false; + } + + /** + * Parse each deviation element. + * + * @param line a line to parse + * @param num line number + * @return an Entry or null if the line is empty. + * @throws ParseException if line has incorrect format. + */ + private static HijrahChrono.Deviation parseLine(final String line, final int num) throws ParseException { + int hash = line.indexOf("#"); + String nocomment = (hash < 0) ? line : line.substring(0, hash); + String[] split = nocomment.split("\\s"); + if (split.length == 0 || split[0].isEmpty()) { + return null; // Nothing to parse + } + if (split.length != 2) { + throw new ParseException("Less than 2 tokens on line : " + line + Arrays.toString(split) + ", split.length: " + split.length, num); + } + + //element [0] is a date + //element [1] is the offset + + LocalDate isoDate = DateTimeFormatters.pattern("MMM-dd-yyyy").parse(split[0], LocalDate::from); + int offset = Integer.valueOf(split[1]); + + // Convert date to HijrahDate using the default Islamic Calendar + + ChronoLocalDate hijrahDate = HijrahChrono.INSTANCE.date(isoDate); + + int year = hijrahDate.get(ChronoField.YEAR); + int month = hijrahDate.get(ChronoField.MONTH_OF_YEAR); + return new HijrahChrono.Deviation(year, month, year, month, offset); + } + + + /** + * Return InputStream for deviation configuration file. The default location + * of the deviation file is: + *
+     *   $CLASSPATH/java/time/calendar
+     * 
And the default file name is: + *
+     *   hijrah_ + typeId + .cfg
+     * 
The default location and file name can be overridden by setting + * following two Java system properties. + *
+     *   Location: java.time.calendar.HijrahDate.deviationConfigDir
+     *   File name: java.time.calendar.HijrahDate.File. + typeid
+     * 
Regarding the file format, see readDeviationConfig() method for + * details. + * + * @param typeId the name of the calendar deviation data + * @return InputStream for file reading. + * @throws IOException for zip/jar file handling exception. + */ + private static InputStream getConfigFileInputStream(final String typeId) throws IOException { + try { + InputStream stream = + (InputStream)AccessController + .doPrivileged((java.security.PrivilegedExceptionAction) () -> { + String propFilename = "java.time.calendar.HijrahChrono.File." + typeId; + String filename = System.getProperty(propFilename); + File file = null; + if (filename != null) { + file = new File(filename); + } else { + String libDir = System.getProperty("java.home") + File.separator + "lib"; + try { + libDir = FileSystems.getDefault().getPath(libDir).toRealPath().toString(); + } catch(Exception e) {} + filename = DEFAULT_CONFIG_FILE_PREFIX + typeId + ".cfg"; + file = new File(libDir, filename); + } + + if (file.exists()) { + try { + return new FileInputStream(file); + } catch (IOException ioe) { + throw ioe; + } + } else { + return null; + } + }); + return stream; + } catch (Exception ex) { + ex.printStackTrace(); + // Not working + return null; + } + } +}