src/share/classes/java/time/chrono/MinguoEra.java

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  37  *  * Redistributions in binary form must reproduce the above copyright notice,
  38  *    this list of conditions and the following disclaimer in the documentation
  39  *    and/or other materials provided with the distribution.
  40  *
  41  *  * Neither the name of JSR-310 nor the names of its contributors
  42  *    may be used to endorse or promote products derived from this software
  43  *    without specific prior written permission.
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  46  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  47  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  48  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  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 java.time.calendar;
  58 
  59 import static java.time.temporal.ChronoField.ERA;
  60 
  61 import java.io.DataInput;
  62 import java.io.DataOutput;
  63 import java.io.IOException;
  64 import java.time.DateTimeException;
  65 import java.time.format.DateTimeFormatterBuilder;
  66 import java.time.format.TextStyle;
  67 import java.time.temporal.ChronoField;
  68 import java.time.temporal.ChronoLocalDate;
  69 import java.time.temporal.Era;
  70 import java.time.temporal.Temporal;
  71 import java.time.temporal.TemporalField;
  72 import java.time.temporal.ValueRange;
  73 import java.util.Locale;
  74 
  75 /**
  76  * An era in the Minguo calendar system.
  77  * <p>
  78  * The Minguo calendar system has two eras.
  79  * The date {@code 0001-01-01 (Minguo)} is equal to {@code 1912-01-01 (ISO)}.
  80  * <p>
  81  * <b>Do not use {@code ordinal()} to obtain the numeric representation of {@code MinguoEra}.
  82  * Use {@code getValue()} instead.</b>
  83  *
  84  * <h3>Specification for implementors</h3>
  85  * This is an immutable and thread-safe enum.
  86  *
  87  * @since 1.8
  88  */
  89 enum MinguoEra implements Era<MinguoChrono>  {
  90 
  91     /**
  92      * The singleton instance for the era BEFORE_ROC, 'Before Republic of China'.
  93      * This has the numeric value of {@code 0}.
  94      */
  95     BEFORE_ROC,
  96     /**
  97      * The singleton instance for the era ROC, 'Republic of China'.
  98      * This has the numeric value of {@code 1}.
  99      */
 100     ROC;
 101 
 102     //-----------------------------------------------------------------------
 103     /**
 104      * Obtains an instance of {@code MinguoEra} from an {@code int} value.
 105      * <p>
 106      * {@code MinguoEra} is an enum representing the Minguo eras of BEFORE_ROC/ROC.
 107      * This factory allows the enum to be obtained from the {@code int} value.
 108      *
 109      * @param era  the BEFORE_ROC/ROC value to represent, from 0 (BEFORE_ROC) to 1 (ROC)


 118                 return ROC;
 119             default:
 120                 throw new DateTimeException("Invalid era: " + era);
 121         }
 122     }
 123 
 124     //-----------------------------------------------------------------------
 125     /**
 126      * Gets the numeric era {@code int} value.
 127      * <p>
 128      * The era BEFORE_ROC has the value 0, while the era ROC has the value 1.
 129      *
 130      * @return the era value, from 0 (BEFORE_ROC) to 1 (ROC)
 131      */
 132     @Override
 133     public int getValue() {
 134         return ordinal();
 135     }
 136 
 137     @Override
 138     public MinguoChrono getChrono() {
 139         return MinguoChrono.INSTANCE;
 140     }
 141 
 142     // JDK8 default methods:
 143     //-----------------------------------------------------------------------
 144     @Override
 145     public ChronoLocalDate<MinguoChrono> date(int year, int month, int day) {
 146         return getChrono().date(this, year, month, day);
 147     }
 148 
 149     @Override
 150     public ChronoLocalDate<MinguoChrono> dateYearDay(int year, int dayOfYear) {
 151         return getChrono().dateYearDay(this, year, dayOfYear);
 152     }
 153 
 154     //-----------------------------------------------------------------------
 155     @Override
 156     public boolean isSupported(TemporalField field) {
 157         if (field instanceof ChronoField) {
 158             return field == ERA;
 159         }
 160         return field != null && field.doIsSupported(this);
 161     }
 162 
 163     @Override
 164     public ValueRange range(TemporalField field) {
 165         if (field == ERA) {
 166             return field.range();
 167         } else if (field instanceof ChronoField) {
 168             throw new DateTimeException("Unsupported field: " + field.getName());
 169         }
 170         return field.doRange(this);
 171     }
 172 
 173     @Override
 174     public int get(TemporalField field) {
 175         if (field == ERA) {
 176             return getValue();
 177         }
 178         return range(field).checkValidIntValue(getLong(field), field);
 179     }
 180 
 181     @Override
 182     public long getLong(TemporalField field) {
 183         if (field == ERA) {
 184             return getValue();
 185         } else if (field instanceof ChronoField) {
 186             throw new DateTimeException("Unsupported field: " + field.getName());
 187         }
 188         return field.doGet(this);
 189     }
 190 
 191     //-------------------------------------------------------------------------
 192     @Override
 193     public Temporal adjustInto(Temporal temporal) {
 194         return temporal.with(ERA, getValue());
 195     }
 196 
 197     //-----------------------------------------------------------------------
 198     @Override
 199     public String getText(TextStyle style, Locale locale) {
 200         return new DateTimeFormatterBuilder().appendText(ERA, style).toFormatter(locale).print(this);
 201     }
 202 
 203     //-----------------------------------------------------------------------
 204     private Object writeReplace() {
 205         return new Ser(Ser.MINGUO_ERA_TYPE, this);
 206     }
 207 
 208     void writeExternal(DataOutput out) throws IOException {
 209         out.writeByte(this.getValue());
 210     }
 211 
 212     static MinguoEra readExternal(DataInput in) throws IOException {
 213         byte eraValue = in.readByte();
 214         return MinguoEra.of(eraValue);
 215     }
 216 
 217 }


  37  *  * Redistributions in binary form must reproduce the above copyright notice,
  38  *    this list of conditions and the following disclaimer in the documentation
  39  *    and/or other materials provided with the distribution.
  40  *
  41  *  * Neither the name of JSR-310 nor the names of its contributors
  42  *    may be used to endorse or promote products derived from this software
  43  *    without specific prior written permission.
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  46  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  47  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  48  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  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 java.time.chrono;


  58 
  59 import java.io.DataInput;
  60 import java.io.DataOutput;
  61 import java.io.IOException;
  62 import java.time.DateTimeException;









  63 
  64 /**
  65  * An era in the Minguo calendar system.
  66  * <p>
  67  * The Minguo calendar system has two eras.
  68  * The date {@code 0001-01-01 (Minguo)} is equal to {@code 1912-01-01 (ISO)}.
  69  * <p>
  70  * <b>Do not use {@code ordinal()} to obtain the numeric representation of {@code MinguoEra}.
  71  * Use {@code getValue()} instead.</b>
  72  *
  73  * <h3>Specification for implementors</h3>
  74  * This is an immutable and thread-safe enum.
  75  *
  76  * @since 1.8
  77  */
  78 enum MinguoEra implements Era  {
  79 
  80     /**
  81      * The singleton instance for the era BEFORE_ROC, 'Before Republic of China'.
  82      * This has the numeric value of {@code 0}.
  83      */
  84     BEFORE_ROC,
  85     /**
  86      * The singleton instance for the era ROC, 'Republic of China'.
  87      * This has the numeric value of {@code 1}.
  88      */
  89     ROC;
  90 
  91     //-----------------------------------------------------------------------
  92     /**
  93      * Obtains an instance of {@code MinguoEra} from an {@code int} value.
  94      * <p>
  95      * {@code MinguoEra} is an enum representing the Minguo eras of BEFORE_ROC/ROC.
  96      * This factory allows the enum to be obtained from the {@code int} value.
  97      *
  98      * @param era  the BEFORE_ROC/ROC value to represent, from 0 (BEFORE_ROC) to 1 (ROC)


 107                 return ROC;
 108             default:
 109                 throw new DateTimeException("Invalid era: " + era);
 110         }
 111     }
 112 
 113     //-----------------------------------------------------------------------
 114     /**
 115      * Gets the numeric era {@code int} value.
 116      * <p>
 117      * The era BEFORE_ROC has the value 0, while the era ROC has the value 1.
 118      *
 119      * @return the era value, from 0 (BEFORE_ROC) to 1 (ROC)
 120      */
 121     @Override
 122     public int getValue() {
 123         return ordinal();
 124     }
 125 
 126     @Override
 127     public MinguoChronology getChronology() {
 128         return MinguoChronology.INSTANCE;
 129     }
 130 
 131     // JDK8 default methods:
 132     //-----------------------------------------------------------------------
 133     @Override
 134     public MinguoDate date(int year, int month, int day) {
 135         return (MinguoDate)(getChronology().date(this, year, month, day));
































 136     }
 137 
 138     @Override
 139     public MinguoDate dateYearDay(int year, int dayOfYear) {
 140         return (MinguoDate)(getChronology().dateYearDay(this, year, dayOfYear));





 141     }
 142 
 143     //-------------------------------------------------------------------------












 144     private Object writeReplace() {
 145         return new Ser(Ser.MINGUO_ERA_TYPE, this);
 146     }
 147 
 148     void writeExternal(DataOutput out) throws IOException {
 149         out.writeByte(this.getValue());
 150     }
 151 
 152     static MinguoEra readExternal(DataInput in) throws IOException {
 153         byte eraValue = in.readByte();
 154         return MinguoEra.of(eraValue);
 155     }
 156 
 157 }