jdk/src/share/classes/java/time/calendar/ThaiBuddhistEra.java
changeset 15289 3ac550392e43
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/time/calendar/ThaiBuddhistEra.java	Tue Jan 22 20:59:21 2013 -0800
@@ -0,0 +1,216 @@
+/*
+ * 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 static java.time.temporal.ChronoField.ERA;
+
+import java.io.DataInput;
+import java.io.DataOutput;
+import java.io.IOException;
+import java.time.DateTimeException;
+import java.time.format.DateTimeFormatterBuilder;
+import java.time.format.TextStyle;
+import java.time.temporal.ChronoField;
+import java.time.temporal.ChronoLocalDate;
+import java.time.temporal.Era;
+import java.time.temporal.Temporal;
+import java.time.temporal.TemporalField;
+import java.time.temporal.ValueRange;
+import java.util.Locale;
+
+/**
+ * An era in the Thai Buddhist calendar system.
+ * <p>
+ * The Thai Buddhist calendar system has two eras.
+ * <p>
+ * <b>Do not use ordinal() to obtain the numeric representation of a ThaiBuddhistEra
+ * instance. Use getValue() instead.</b>
+ *
+ * <h3>Specification for implementors</h3>
+ * This is an immutable and thread-safe enum.
+ *
+ * @since 1.8
+ */
+enum ThaiBuddhistEra implements Era<ThaiBuddhistChrono> {
+
+    /**
+     * The singleton instance for the era before the current one, 'Before Buddhist Era',
+     * which has the value 0.
+     */
+    BEFORE_BE,
+    /**
+     * The singleton instance for the current era, 'Buddhist Era', which has the value 1.
+     */
+    BE;
+
+    //-----------------------------------------------------------------------
+    /**
+     * Obtains an instance of {@code ThaiBuddhistEra} from a value.
+     * <p>
+     * The current era (from ISO year -543 onwards) has the value 1
+     * The previous era has the value 0.
+     *
+     * @param thaiBuddhistEra  the era to represent, from 0 to 1
+     * @return the BuddhistEra singleton, never null
+     * @throws IllegalCalendarFieldValueException if the era is invalid
+     */
+    public static ThaiBuddhistEra of(int thaiBuddhistEra) {
+        switch (thaiBuddhistEra) {
+            case 0:
+                return BEFORE_BE;
+            case 1:
+                return BE;
+            default:
+                throw new DateTimeException("Era is not valid for ThaiBuddhistEra");
+        }
+    }
+
+    //-----------------------------------------------------------------------
+    /**
+     * Gets the era numeric value.
+     * <p>
+     * The current era (from ISO year -543 onwards) has the value 1
+     * The previous era has the value 0.
+     *
+     * @return the era value, from 0 (BEFORE_BE) to 1 (BE)
+     */
+    @Override
+    public int getValue() {
+        return ordinal();
+    }
+
+    @Override
+    public ThaiBuddhistChrono getChrono() {
+        return ThaiBuddhistChrono.INSTANCE;
+    }
+
+    // JDK8 default methods:
+    //-----------------------------------------------------------------------
+    @Override
+    public ChronoLocalDate<ThaiBuddhistChrono> date(int year, int month, int day) {
+        return getChrono().date(this, year, month, day);
+    }
+
+    @Override
+    public ChronoLocalDate<ThaiBuddhistChrono> dateYearDay(int year, int dayOfYear) {
+        return getChrono().dateYearDay(this, year, dayOfYear);
+    }
+
+    //-----------------------------------------------------------------------
+    @Override
+    public boolean isSupported(TemporalField field) {
+        if (field instanceof ChronoField) {
+            return field == ERA;
+        }
+        return field != null && field.doIsSupported(this);
+    }
+
+    @Override
+    public ValueRange range(TemporalField field) {
+        if (field == ERA) {
+            return field.range();
+        } else if (field instanceof ChronoField) {
+            throw new DateTimeException("Unsupported field: " + field.getName());
+        }
+        return field.doRange(this);
+    }
+
+    @Override
+    public int get(TemporalField field) {
+        if (field == ERA) {
+            return getValue();
+        }
+        return range(field).checkValidIntValue(getLong(field), field);
+    }
+
+    @Override
+    public long getLong(TemporalField field) {
+        if (field == ERA) {
+            return getValue();
+        } else if (field instanceof ChronoField) {
+            throw new DateTimeException("Unsupported field: " + field.getName());
+        }
+        return field.doGet(this);
+    }
+
+    //-------------------------------------------------------------------------
+    @Override
+    public Temporal adjustInto(Temporal temporal) {
+        return temporal.with(ERA, getValue());
+    }
+
+    //-----------------------------------------------------------------------
+    @Override
+    public String getText(TextStyle style, Locale locale) {
+        return new DateTimeFormatterBuilder().appendText(ERA, style).toFormatter(locale).print(this);
+    }
+
+    //-----------------------------------------------------------------------
+    private Object writeReplace() {
+        return new Ser(Ser.THAIBUDDHIST_ERA_TYPE, this);
+    }
+
+    void writeExternal(DataOutput out) throws IOException {
+        out.writeByte(this.getValue());
+    }
+
+    static ThaiBuddhistEra readExternal(DataInput in) throws IOException {
+        byte eraValue = in.readByte();
+        return ThaiBuddhistEra.of(eraValue);
+    }
+
+}