content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package mf.org.apache.xerces.impl.dv.xs;
  
  import mf.javax.xml.datatype.DatatypeConstants;
  import mf.javax.xml.datatype.XMLGregorianCalendar;
  import mf.org.apache.xerces.impl.dv.InvalidDatatypeValueException;
  import mf.org.apache.xerces.impl.dv.ValidationContext;
  
  /**
   * Validator for &lt;gMonth&gt; datatype (W3C Schema Datatypes)
   *
   * @author Elena Litani
   * @author Gopal Sharma, SUN Microsystem Inc.
   * @version $Id: MonthDV.java 937741 2010-04-25 04:25:46Z mrglavas $
   * @xerces.internal
   */
  
  public class MonthDV extends AbstractDateTimeDV {
  
      /**
       * Convert a string to a compiled form
       *
       * @param content The lexical representation of gMonth
       * @return a valid and normalized gMonth object
       */
      @Override
      public Object getActualValue(String content, ValidationContext context) throws InvalidDatatypeValueException {
          try {
              return parse(content);
          } catch (Exception ex) {
              throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "gMonth"});
          }
      }
  
      /**
       * Parses, validates and computes normalized version of gMonth object
       *
       * @param str The lexical representation of gMonth object --MM
       *            with possible time zone Z or (-),(+)hh:mm
       * @return normalized date representation
       * @throws SchemaDateTimeException Invalid lexical representation
       */
      protected DateTimeData parse(String str) throws SchemaDateTimeException {
          DateTimeData date = new DateTimeData(str, this);
          int len = str.length();
  
          //set constants
          date.year = YEAR;
          date.day = DAY;
          if (str.charAt(0) != '-' || str.charAt(1) != '-') {
              throw new SchemaDateTimeException("Invalid format for gMonth: " + str);
          }
          int stop = 4;
          date.month = parseInt(str, 2, stop);
  
          // REVISIT: allow both --MM and --MM-- now.
          // need to remove the following 4 lines to disallow --MM--
          // when the errata is offically in the rec.
          if (str.length() >= stop + 2 &&
                  str.charAt(stop) == '-' && str.charAt(stop + 1) == '-') {
              stop += 2;
          }
          if (stop < len) {
              if (!isNextCharUTCSign(str, stop, len)) {
                  throw new SchemaDateTimeException("Error in month parsing: " + str);
              } else {
                  getTimeZone(str, date, stop, len);
              }
          }
          //validate and normalize
          validateDateTime(date);
  
          //save unnormalized values
          saveUnnormalized(date);
  
          if (date.utc != 0 && date.utc != 'Z') {
              normalize(date);
          }
          date.position = 1;
          return date;
      }
  
      /**
       * Overwrite compare algorithm to optimize month comparison
       *
       * REVISIT: this one is lack of the third parameter: boolean strict, so it
       *          doesn't override the method in the base. But maybe this method
       *          is not correctly implemented, and I did encounter errors when
       *          trying to add the extra parameter. I'm leaving it as is. -SG
       *
       * @param date1
       * @param date2
       * @return less, greater, equal, indeterminate
       */
      /*protected  short compareDates(DateTimeData date1, DateTimeData date2) {
  
          if ( date1.utc==date2.utc ) {
              return (short)((date1.month>=date2.month)?(date1.month>date2.month)?1:0:-1);
          }
  
          if ( date1.utc=='Z' || date2.utc=='Z' ) {
  
              if ( date1.month==date2.month ) {
                  //--05--Z and --05--
                  return INDETERMINATE;
              }
              if ( (date1.month+1 == date2.month || date1.month-1 == date2.month) ) {
                  //--05--Z and (--04-- or --05--)
                  //REVISIT: should this case be less than or equal?
                  //         maxExclusive should fail but what about maxInclusive
                  //
                  return INDETERMINATE;
              }
          }
  
          if ( date1.month<date2.month ) {
              return -1;
          }
          else {
              return 1;
          }
  
      }*/
  
      /**
       * Converts month object representation to String
       *
       * @param date month object
       * @return lexical representation of month: --MM with an optional time zone sign
       */
      @Override
      protected String dateToString(DateTimeData date) {
          StringBuffer message = new StringBuffer(5);
          message.append('-');
          message.append('-');
          append(message, date.month, 2);
          append(message, (char) date.utc, 0);
          return message.toString();
      }
  
      @Override
      protected XMLGregorianCalendar getXMLGregorianCalendar(DateTimeData date) {
          return datatypeFactory.newXMLGregorianCalendar(DatatypeConstants.FIELD_UNDEFINED, date.unNormMonth,
                  DatatypeConstants.FIELD_UNDEFINED, DatatypeConstants.FIELD_UNDEFINED, DatatypeConstants.FIELD_UNDEFINED,
                  DatatypeConstants.FIELD_UNDEFINED, DatatypeConstants.FIELD_UNDEFINED,
                  date.hasTimeZone() ? date.timezoneHr * 60 + date.timezoneMin : DatatypeConstants.FIELD_UNDEFINED);
      }
  }
  