Package org.eclipse.persistence.internal.oxm

Source Code of org.eclipse.persistence.internal.oxm.XMLConversionManager

/*******************************************************************************
* Copyright (c) 1998, 2008 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
*     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.internal.oxm;

import java.sql.Time;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.List;
import java.util.StringTokenizer;
import java.util.TimeZone;
import java.text.DateFormat;
import java.text.ParseException;

import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeConstants;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.Duration;
import javax.xml.datatype.XMLGregorianCalendar;
import javax.xml.namespace.QName;

import org.eclipse.persistence.exceptions.ConversionException;
import org.eclipse.persistence.exceptions.XMLConversionException;
import org.eclipse.persistence.internal.helper.*;
import org.eclipse.persistence.internal.oxm.conversion.Base64;
import org.eclipse.persistence.oxm.XMLConstants;

/**
* INTERNAL:
* <p><b>Purpose</b>: Primarily used to convert objects from a given XML Schema type to a different type in Java.
* Uses a singleton instance</p>
* @since    OracleAS TopLink 10<i>g</i>
*/

public class XMLConversionManager extends ConversionManager implements TimeZoneHolder {
    protected static final String GMT_ID = "GMT";
    protected static final String GMT_SUFFIX = "Z";

    protected static XMLConversionManager defaultXMLManager;

    // Static hash tables for the default conversion pairs
    protected static HashMap defaultXMLTypes;
    protected static HashMap defaultJavaTypes;

    protected boolean timeZoneQualified;
    protected TimeZone timeZone;

    protected static int TOTAL_MS_DIGITS = 3// total digits for millisecond formatting
    protected static int TOTAL_NS_DIGITS = 9// total digits for nanosecond  formatting
    protected static long YEAR_ONE_AD_TIME = -62135769600000L; // time of 1 AD

    protected DatatypeFactory datatypeFactory;

    public XMLConversionManager() {
        super();
        timeZoneQualified = false;
    }

    /**
     * INTERNAL:
     *
     * Return the DatatypeFactory instance.
     *
     * @return
     */
    protected DatatypeFactory getDatatypeFactory() {
        if (datatypeFactory == null) {
            try {
                datatypeFactory = DatatypeFactory.newInstance();
            } catch (DatatypeConfigurationException e) {
                throw new RuntimeException(e);
            }
        }
        return datatypeFactory;
    }

    public static XMLConversionManager getDefaultXMLManager() {
        if (defaultXMLManager == null) {
            defaultXMLManager = new XMLConversionManager();
        }
        return defaultXMLManager;
    }

    /**
     * Return the specified TimeZone used for all String to date object
     * conversions.
     */
    public TimeZone getTimeZone() {
        if (timeZone == null) {
            return TimeZone.getDefault();
        } else {
            return timeZone;
        }
    }

    /**
     * The specified TimeZone will be used for all String to date object
     * conversions.  By default the TimeZone from the JVM is used.
     */
    public void setTimeZone(TimeZone timeZone) {
        this.timeZone = timeZone;
    }

    /**
      *
      */
    public boolean isTimeZoneQualified() {
        return timeZoneQualified;
    }

    /**
     * Specify if
     * Specify if when date objects are converted to Strings in the XML Schema
     * time or dateTime format
     */

    public void setTimeZoneQualified(boolean timeZoneQualified) {
        this.timeZoneQualified = timeZoneQualified;
    }

    /**
     * Convert the given object to the appropriate type by invoking the appropriate
     * ConversionManager method.
     *
     * @param sourceObject - will always be a string if read from XML
     * @param javaClass - the class that the object must be converted to
     * @return - the newly converted object
     */
    public Object convertObject(Object sourceObject, Class javaClass) throws ConversionException {
        if (sourceObject == null) {//Let the parent handle default null values
            return super.convertObject(sourceObject, javaClass);
        } else if ((javaClass == XMLConstants.QNAME_CLASS) && (sourceObject != null)) {
            return convertObjectToQName(sourceObject);
        } else if ((javaClass == ClassConstants.List_Class) && (sourceObject instanceof String)) {
            return convertStringToList(sourceObject);
        } else if ((javaClass == ClassConstants.STRING) && (sourceObject instanceof List)) {
            return convertListToString(sourceObject);
        } else if ((javaClass == ClassConstants.CALENDAR)) {
            return convertObjectToCalendar(sourceObject);
        } else if ((javaClass == ClassConstants.UTILDATE)) {
            return convertObjectToUtilDate(sourceObject, XMLConstants.DATE_TIME_QNAME);
        } else if ((javaClass == ClassConstants.SQLDATE)) {
            return convertObjectToSQLDate(sourceObject, XMLConstants.DATE_QNAME);
        } else if ((javaClass == ClassConstants.TIME)) {
            return convertObjectToSQLTime(sourceObject, XMLConstants.TIME_QNAME);
        } else if ((javaClass == ClassConstants.TIMESTAMP)) {
            return convertObjectToTimestamp(sourceObject, XMLConstants.DATE_TIME_QNAME);
        } else if ((javaClass == java.net.URI.class)) {
            return convertObjectToURI(sourceObject);
        } else if ((javaClass == ClassConstants.XML_GREGORIAN_CALENDAR)) {
            return convertObjectToXMLGregorianCalendar(sourceObject);
        } else if ((javaClass == ClassConstants.DURATION)) {
            return convertObjectToDuration(sourceObject);
        } else {
            try {
                return super.convertObject(sourceObject, javaClass);
            } catch (ConversionException ex) {
                if (sourceObject.getClass() == ClassConstants.STRING) {
                    return super.convertObject(((String) sourceObject).trim(), javaClass);
                }
                throw ex;
            }
        }
    }

    /**
     * Convert the given object to the appropriate type by invoking the appropriate
     * ConversionManager method.
     *
     * @param sourceObject - will always be a string if read from XML
     * @param javaClass - the class that the object must be converted to
     * @param schemaTypeQName - the XML schema that the object is being converted from
     * @return - the newly converted object
     */
    public Object convertObject(Object sourceObject, Class javaClass, QName schemaTypeQName) throws ConversionException {
        if (schemaTypeQName == null) {
            return convertObject(sourceObject, javaClass);
        }

        if (sourceObject == null) {
            return super.convertObject(sourceObject, javaClass);
        } else if ((javaClass == ClassConstants.CALENDAR) || (javaClass == ClassConstants.GREGORIAN_CALENDAR)) {
            return convertObjectToCalendar(sourceObject, schemaTypeQName);
        } else if (javaClass == ClassConstants.ABYTE) {
            if (schemaTypeQName.getLocalPart().equalsIgnoreCase(XMLConstants.HEX_BINARY)) {
                return super.convertObjectToByteObjectArray(sourceObject);
            } else if (schemaTypeQName.getLocalPart().equalsIgnoreCase(XMLConstants.BASE_64_BINARY)) {
                return convertSchemaBase64ToByteObjectArray(sourceObject);
            }
        } else if (javaClass == ClassConstants.APBYTE) {
            if (schemaTypeQName.getLocalPart().equalsIgnoreCase(XMLConstants.HEX_BINARY)) {
                return super.convertObjectToByteArray(sourceObject);
            } else if (schemaTypeQName.getLocalPart().equalsIgnoreCase(XMLConstants.BASE_64_BINARY)) {
                return convertSchemaBase64ToByteArray(sourceObject);
            }
        } else if ((javaClass == ClassConstants.List_Class) && (sourceObject instanceof String)) {
            return convertStringToList(sourceObject);
        } else if ((javaClass == ClassConstants.STRING) && (sourceObject instanceof List)) {
            return convertListToString(sourceObject);
        } else if (sourceObject instanceof byte[]) {
            if (schemaTypeQName.getLocalPart().equalsIgnoreCase(XMLConstants.BASE_64_BINARY)) {
                return buildBase64StringFromBytes((byte[]) sourceObject);
            }
            return Helper.buildHexStringFromBytes((byte[]) sourceObject);
        } else if (sourceObject instanceof Byte[]) {
            if (schemaTypeQName.getLocalPart().equalsIgnoreCase(XMLConstants.BASE_64_BINARY)) {
                return buildBase64StringFromObjectBytes((Byte[]) sourceObject);
            }
            return buildHexStringFromObjectBytes((Byte[]) sourceObject);
        } else if ((javaClass == ClassConstants.UTILDATE)) {
            return convertObjectToUtilDate(sourceObject, schemaTypeQName);
        } else if (javaClass == ClassConstants.SQLDATE) {
            return convertObjectToSQLDate(sourceObject, schemaTypeQName);
        } else if (javaClass == ClassConstants.TIME) {
            return convertObjectToSQLTime(sourceObject, schemaTypeQName);
        } else if (javaClass == ClassConstants.TIMESTAMP) {
            return convertObjectToTimestamp(sourceObject, schemaTypeQName);
        } else if ((javaClass == XMLConstants.QNAME_CLASS) && (sourceObject != null)) {
            return convertObjectToQName(sourceObject);
        } else if (javaClass == ClassConstants.STRING) {
            return convertObjectToString(sourceObject, schemaTypeQName);
        } else if ((javaClass == java.net.URI.class)) {
            return convertObjectToURI(sourceObject);
        } else if ((javaClass == ClassConstants.XML_GREGORIAN_CALENDAR)) {
            return convertObjectToXMLGregorianCalendar(sourceObject, schemaTypeQName);
        } else if ((javaClass == ClassConstants.DURATION)) {
            return convertObjectToDuration(sourceObject);
        } else {
            try {
                return super.convertObject(sourceObject, javaClass);
            } catch (ConversionException ex) {
                if (sourceObject.getClass() == ClassConstants.STRING) {
                    return super.convertObject(((String) sourceObject).trim(), javaClass);
                }
                throw ex;
            }
        }

        throw ConversionException.couldNotBeConverted(sourceObject, javaClass);
    }

    /**
     * Build a valid instance of XMLGregorianCalendar from the provided sourceObject.
     *
     * @param sourceObject
     * @param schemaTypeQName
     */
    protected XMLGregorianCalendar convertObjectToXMLGregorianCalendar(Object sourceObject, QName schemaTypeQName) throws ConversionException {
        if (sourceObject instanceof XMLGregorianCalendar) {
            return (XMLGregorianCalendar) sourceObject;
        }
       
        if (sourceObject instanceof String) {
            return convertStringToXMLGregorianCalendar((String) sourceObject, schemaTypeQName);
        }
        throw ConversionException.couldNotBeConverted(sourceObject, ClassConstants.XML_GREGORIAN_CALENDAR);
    }
    /**
     * Build a valid instance of XMLGregorianCalendar from the provided sourceObject.
     *
     * @param sourceObject
     */
    protected XMLGregorianCalendar convertObjectToXMLGregorianCalendar(Object sourceObject) throws ConversionException {
        if (sourceObject instanceof XMLGregorianCalendar) {
            return (XMLGregorianCalendar) sourceObject;
        }
       
        if (sourceObject instanceof String) {
            return convertStringToXMLGregorianCalendar((String) sourceObject);
        }
        throw ConversionException.couldNotBeConverted(sourceObject, ClassConstants.XML_GREGORIAN_CALENDAR);
    }

    /**
     * Build a valid instance of Duration from the provided sourceObject.
     *
     * @param sourceObject
     */
    protected Duration convertObjectToDuration(Object sourceObject) throws ConversionException {
        if (sourceObject instanceof Duration) {
            return (Duration) sourceObject;
        }
        if (sourceObject instanceof String) {
            return convertStringToDuration((String) sourceObject);
        }
        throw ConversionException.couldNotBeConverted(sourceObject, ClassConstants.DURATION);
    }
    /**
     * Build a valid instance of Character from the provided sourceObject.
     *
     * @param sourceObject
     */
    protected Character convertObjectToChar(Object sourceObject) throws ConversionException {
        if (sourceObject == null || sourceObject.equals("")) {
            return (char) 0;
        }

        return super.convertObjectToChar(sourceObject);
    }

    /**
     * Convert a String to a URI.
     *
     * @param sourceObject
     * @return
     * @throws ConversionException
     */
    protected java.net.URI convertObjectToURI(Object sourceObject) throws ConversionException {
        if (sourceObject instanceof String) {
            try {
                return new java.net.URI((String) sourceObject);
            } catch (Exception ex) {
            }
        }

        throw ConversionException.couldNotBeConverted(sourceObject, java.net.URI.class);
    }

    /**
     * INTERNAL:
     * Converts given object to a QName object
     */
    protected QName convertObjectToQName(Object sourceObject) throws ConversionException {
        if (sourceObject instanceof QName) {
            return (QName) sourceObject;
        }

        if (sourceObject instanceof String) {
            return qnameFromString((String) sourceObject);
        }

        throw ConversionException.couldNotBeConverted(sourceObject, XMLConstants.QNAME_CLASS);
    }

    /**
     * INTERNAL:
     * Converts given object to a Calendar object
     */
    protected Calendar convertObjectToCalendar(Object sourceObject) throws ConversionException {
        if (sourceObject instanceof String) {
            String sourceString = (String) sourceObject;
            if (sourceString.lastIndexOf('T') != -1) {
                return convertStringToCalendar((String) sourceObject, XMLConstants.DATE_TIME_QNAME);
            } else {
                if (sourceString.lastIndexOf(':') != -1) {
                    return convertStringToCalendar((String) sourceObject, XMLConstants.TIME_QNAME);
                } else {
                    return convertStringToCalendar((String) sourceObject, XMLConstants.DATE_QNAME);
                }
            }
        }
        return super.convertObjectToCalendar(sourceObject);
    }

    /**
     * INTERNAL:
     * Converts objects to their string representations.
     */
    protected String convertObjectToString(Object sourceObject) throws ConversionException {
        if (sourceObject instanceof Calendar) {
            return stringFromCalendar((Calendar) sourceObject);
        }
        if (sourceObject instanceof Character && sourceObject.equals((char) 0)) {
            return "";
        }
        if (sourceObject instanceof QName) {
            return stringFromQName((QName) sourceObject);
        }
        if (sourceObject instanceof java.sql.Date) {
            return stringFromSQLDate((java.sql.Date) sourceObject);
        }
        if (sourceObject instanceof java.sql.Time) {
            return stringFromSQLTime((java.sql.Time) sourceObject);
        }
        if (sourceObject instanceof java.sql.Timestamp) {
            return stringFromTimestamp((Timestamp) sourceObject);
        }
        if (sourceObject instanceof java.util.Date) {
            return stringFromDate((java.util.Date) sourceObject);
        }
        if (sourceObject instanceof XMLGregorianCalendar) {
            return stringFromXMLGregorianCalendar((XMLGregorianCalendar) sourceObject);
        }
        if (sourceObject instanceof Duration) {
            return stringFromDuration((Duration) sourceObject);
        }
        return super.convertObjectToString(sourceObject);
    }

    protected String convertObjectToString(Object sourceObject, QName schemaTypeQName) throws ConversionException {
        if (sourceObject instanceof Calendar) {
            return stringFromCalendar((Calendar) sourceObject, schemaTypeQName);
        }
        if (sourceObject instanceof QName) {
            return stringFromQName((QName) sourceObject);
        }
        if (sourceObject instanceof java.sql.Date) {
            return stringFromSQLDate((java.sql.Date) sourceObject, schemaTypeQName);
        }
        if (sourceObject instanceof java.sql.Time) {
            return stringFromSQLTime((java.sql.Time) sourceObject, schemaTypeQName);
        }
        if (sourceObject instanceof java.sql.Timestamp) {
            return stringFromTimestamp((Timestamp) sourceObject, schemaTypeQName);
        }
        if (sourceObject instanceof java.util.Date) {
            return stringFromDate((java.util.Date) sourceObject, schemaTypeQName);
        }
        if (sourceObject instanceof XMLGregorianCalendar) {
            return stringFromXMLGregorianCalendar((XMLGregorianCalendar) sourceObject, schemaTypeQName);
        }
        if (sourceObject instanceof Duration) {
            return stringFromDuration((Duration) sourceObject);
        }

        return super.convertObjectToString(sourceObject);

    }

    private Calendar convertObjectToCalendar(Object sourceObject, QName schemaTypeQName) {
        if (sourceObject instanceof String) {
            return convertStringToCalendar((String) sourceObject, schemaTypeQName);
        }
        return super.convertObjectToCalendar(sourceObject);
    }

    public XMLGregorianCalendar convertStringToXMLGregorianCalendar(String sourceString, QName schemaTypeQName) {
        XMLGregorianCalendar xmlGregorianCalender = null;
        try {
            xmlGregorianCalender = convertStringToXMLGregorianCalendar(sourceString);
        } catch (Exception ex) {
             if (XMLConstants.DATE_QNAME.equals(schemaTypeQName)) {
                 throw ConversionException.incorrectDateFormat(sourceString);
             } else if (XMLConstants.TIME_QNAME.equals(schemaTypeQName)) {
                 throw ConversionException.incorrectTimeFormat(sourceString);
             } else if (XMLConstants.G_DAY_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGDayFormat(sourceString);
             } else if (XMLConstants.G_MONTH_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGMonthFormat(sourceString);
             } else if (XMLConstants.G_MONTH_DAY_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGMonthDayFormat(sourceString);
             } else if (XMLConstants.G_YEAR_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGYearFormat(sourceString);
             } else if (XMLConstants.G_YEAR_MONTH_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGYearMonthFormat(sourceString);
             } else if (XMLConstants.DURATION_QNAME.equals(schemaTypeQName)) {
                 throw new IllegalArgumentException();
             } else {
                 throw ConversionException.incorrectDateTimeFormat(sourceString);
             }
        }

        QName calendarQName = xmlGregorianCalender.getXMLSchemaType();
        if (!calendarQName.equals(schemaTypeQName)) {
            if (XMLConstants.DATE_QNAME.equals(schemaTypeQName)) {
                if (calendarQName.equals(XMLConstants.DATE_TIME_QNAME)) {
                    //clear out the time portion
                    xmlGregorianCalender.setHour(DatatypeConstants.FIELD_UNDEFINED);
                    xmlGregorianCalender.setMinute(DatatypeConstants.FIELD_UNDEFINED);
                    xmlGregorianCalender.setSecond(DatatypeConstants.FIELD_UNDEFINED);
                    xmlGregorianCalender.setMillisecond(DatatypeConstants.FIELD_UNDEFINED);
                    return xmlGregorianCalender;
                } else {
                    throw ConversionException.incorrectDateFormat(sourceString);
                }
             } else if (XMLConstants.TIME_QNAME.equals(schemaTypeQName)) {
                 throw ConversionException.incorrectTimeFormat(sourceString);
             } else if (XMLConstants.G_DAY_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGDayFormat(sourceString);
             } else if (XMLConstants.G_MONTH_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGMonthFormat(sourceString);
             } else if (XMLConstants.G_MONTH_DAY_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGMonthDayFormat(sourceString);
             } else if (XMLConstants.G_YEAR_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGYearFormat(sourceString);
             } else if (XMLConstants.G_YEAR_MONTH_QNAME.equals(schemaTypeQName)) {
                 throw XMLConversionException.incorrectGYearMonthFormat(sourceString);
             } else if (XMLConstants.DURATION_QNAME.equals(schemaTypeQName)) {
                 throw new IllegalArgumentException();
             } else if (XMLConstants.DATE_TIME_QNAME.equals(schemaTypeQName)) {
                 throw ConversionException.incorrectDateTimeFormat(sourceString);
             }
        }
        return xmlGregorianCalender;
    }
    /**
     * Return an XMLGregorianCalander created with a given date string
     *
     * @param dateString
     * @return
     */
    public XMLGregorianCalendar convertStringToXMLGregorianCalendar(String sourceString) {
        XMLGregorianCalendar calToReturn = null;

        try {
            calToReturn = getDatatypeFactory().newXMLGregorianCalendar(sourceString);
        } catch (IllegalArgumentException e1) {
            try {
                // GMonths have different representations depending on JDK version:
                // JDK 1.5: "--MM--"   JDK 1.6: "--MM"
                // If we caught an IllegalArgument, try the 1.5 syntax
                calToReturn = getDatatypeFactory().newXMLGregorianCalendar(sourceString + "--");
            } catch (IllegalArgumentException e2) {
                throw e1;
            }
        }

        return calToReturn;
    }

    /**
     * Return a Duration created with a given date string.
     *
     * @param dateString
     * @return
     */
    public Duration convertStringToDuration(String sourceString) {
        return getDatatypeFactory().newDuration(sourceString);
    }

    public Calendar convertStringToCalendar(String sourceString, QName schemaTypeQName) {
        java.util.Date date = convertStringToDate(sourceString, schemaTypeQName);
        Calendar cal = Helper.calendarFromUtilDate(date);
        cal.setTimeZone(getTimeZone());
        return cal;
    }

    private Date convertObjectToUtilDate(Object sourceObject, QName schemaTypeQName) {
        if (sourceObject instanceof String) {
            return convertStringToDate((String) sourceObject, schemaTypeQName);
        }
        return super.convertObjectToUtilDate(sourceObject);
    }

    protected java.sql.Date convertObjectToSQLDate(Object sourceObject, QName schemaTypeQName) {
        if (sourceObject instanceof String) {
            Date date = convertStringToDate((String) sourceObject, schemaTypeQName);
            return new java.sql.Date((date.getTime() / 1000) * 1000);
        }
        return super.convertObjectToDate(sourceObject);
    }

    protected Time convertObjectToSQLTime(Object sourceObject, QName schemaTypeQName) {
        if (sourceObject instanceof String) {
            Date date = convertStringToDate((String) sourceObject, schemaTypeQName);
            return new java.sql.Time((date.getTime() / 1000) * 1000);
        }
        return super.convertObjectToTime(sourceObject);
    }

    protected Timestamp convertStringToTimestamp(String sourceObject) {
        return convertStringToTimestamp(sourceObject, XMLConstants.DATE_TIME_QNAME);
    }

    protected Timestamp convertObjectToTimestamp(Object sourceObject, QName schemaTypeQName) {
        if (sourceObject instanceof String) {
            return convertStringToTimestamp((String) sourceObject, schemaTypeQName);
        }
        return super.convertObjectToTimestamp(sourceObject);
    }

    public java.sql.Timestamp convertStringToTimestamp(String sourceString, QName schemaType) {

        XMLGregorianCalendar xmlGregorianCalender = null;
        try {
            xmlGregorianCalender = convertStringToXMLGregorianCalendar(sourceString);
        } catch(Exception ex) {

             if (XMLConstants.DATE_QNAME.equals(schemaType)) {
                 throw ConversionException.incorrectDateFormat(sourceString);
             }else if (XMLConstants.TIME_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectTimestampTimeFormat(sourceString);
             }else if (XMLConstants.G_DAY_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGDayFormat(sourceString);
             } else if (XMLConstants.G_MONTH_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGMonthFormat(sourceString);
             }else if (XMLConstants.G_MONTH_DAY_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGMonthDayFormat(sourceString);
             }else if (XMLConstants.G_YEAR_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGYearFormat(sourceString);
             }else if (XMLConstants.G_YEAR_MONTH_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGYearMonthFormat(sourceString);
             }else if (XMLConstants.DURATION_QNAME.equals(schemaType)) {
                 throw new IllegalArgumentException();
             }else{
                 throw XMLConversionException.incorrectTimestampDateTimeFormat(sourceString);
             }
        }

        GregorianCalendar cal = xmlGregorianCalender.toGregorianCalendar();
        cal.setTimeZone(getTimeZone());

        QName  calendarQName = xmlGregorianCalender.getXMLSchemaType();
        if(!calendarQName.equals(schemaType)){
            if (XMLConstants.DATE_QNAME.equals(schemaType)){
                if(calendarQName.equals(XMLConstants.DATE_TIME_QNAME)) {
                    //clear out the time portion
                    cal.clear(Calendar.HOUR_OF_DAY);
                    cal.clear(Calendar.MINUTE);
                    cal.clear(Calendar.SECOND);
                    cal.clear(Calendar.MILLISECOND);
                    return Helper.timestampFromCalendar(cal);

                }else{
                    throw ConversionException.incorrectDateFormat(sourceString);
                }
             }else if (XMLConstants.TIME_QNAME.equals(schemaType)){
                 throw XMLConversionException.incorrectTimestampTimeFormat(sourceString);
             }else if (XMLConstants.G_DAY_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGDayFormat(sourceString);

             } else if (XMLConstants.G_MONTH_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGMonthFormat(sourceString);

             }else if (XMLConstants.G_MONTH_DAY_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGMonthDayFormat(sourceString);

             }else if (XMLConstants.G_YEAR_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGYearFormat(sourceString);

             }else if (XMLConstants.G_YEAR_MONTH_QNAME.equals(schemaType)) {
                 throw XMLConversionException.incorrectGYearMonthFormat(sourceString);

             }else if (XMLConstants.DURATION_QNAME.equals(schemaType)) {
                 throw new IllegalArgumentException();

             }else if (XMLConstants.DATE_TIME_QNAME.equals(schemaType)) { //&& XMLConstants.DATE_QNAME.equals(calendarQName)) {
                 throw XMLConversionException.incorrectTimestampDateTimeFormat(sourceString);

             }
        }
        Timestamp timestamp = Helper.timestampFromCalendar(cal);
        int decimalIndex = sourceString.lastIndexOf('.');

        if(-1 == decimalIndex) {
            return timestamp;
        }else{
            int timeZoneIndex = sourceString.lastIndexOf(GMT_SUFFIX);
            if(-1 == timeZoneIndex) {
                timeZoneIndex = sourceString.lastIndexOf('-');
                if(timeZoneIndex < decimalIndex) {
                    timeZoneIndex = -1;
                }
                if(-1 == timeZoneIndex) {
                    timeZoneIndex = sourceString.lastIndexOf('+');
                }

            }

            String nsString;
            if(-1 == timeZoneIndex) {
                nsString = sourceString.substring(decimalIndex + 1);
            } else {
                nsString = sourceString.substring((decimalIndex + 1), timeZoneIndex);
            }
            double ns = Long.valueOf(nsString).doubleValue();
            ns = ns * Math.pow(10, 9 - nsString.length());
            timestamp.setNanos((int) ns);
            return timestamp;
        }

    }

    public String stringFromCalendar(Calendar sourceCalendar, QName schemaTypeQName) {
        Calendar cal = (Calendar) sourceCalendar.clone();
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            // use the timezone info on source calendar, if any
            if (sourceCalendar.isSet(Calendar.ZONE_OFFSET)) {
                xgc.setTimezone(cal.get(Calendar.ZONE_OFFSET) / 60000);
            }
            // gDay
            if (XMLConstants.G_DAY_QNAME.equals(schemaTypeQName)) {
                xgc.setDay(cal.get(Calendar.DATE));
                return xgc.toXMLFormat();
            }
            // gMonth
            if (XMLConstants.G_MONTH_QNAME.equals(schemaTypeQName)) {
                xgc.setMonth(cal.get(Calendar.MONTH) + 1);
                // Note: 'XML Schema:  Datatypes' indicates that the lexical representation is "--MM--"
                // but the truncated representation as described in 5.2.1.3 of ISO 8601:1988 is "--MM".
                // We always want to return the 1.6 syntax ("--MM").
                String xmlFormat = xgc.toXMLFormat();
                String pre  = xmlFormat.substring(0, 4); // will always be --MM
                String post = "";
               
                // --MM or --MM--
                if (xmlFormat.length() == 4 && xmlFormat.length() == 6) {
                    post = "";
                }

                // --MMZ or --MM+03:00
                if (xmlFormat.length() == 5 || xmlFormat.length() == 10) {
                    post = xmlFormat.substring(4);
                }

                // --MM--Z or --MM--+03:00
                if (xmlFormat.length() == 7 || xmlFormat.length() == 12) {
                    post = xmlFormat.substring(6);
                }

                return pre + post;
            }
            // gMonthDay
            if (XMLConstants.G_MONTH_DAY_QNAME.equals(schemaTypeQName)) {
                xgc.setMonth(cal.get(Calendar.MONTH) + 1);
                xgc.setDay(cal.get(Calendar.DATE));
                return xgc.toXMLFormat();
            }
            // gYear
            if (XMLConstants.G_YEAR_QNAME.equals(schemaTypeQName)) {
                if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                    xgc.setYear(-cal.get(Calendar.YEAR));
                }else{
                    xgc.setYear(cal.get(Calendar.YEAR));
                }
                return xgc.toXMLFormat();
            }
            // gYearMonth
            if (XMLConstants.G_YEAR_MONTH_QNAME.equals(schemaTypeQName)) {
                if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                    xgc.setYear(-cal.get(Calendar.YEAR));
                }else{
                    xgc.setYear(cal.get(Calendar.YEAR));
                }
                xgc.setMonth(cal.get(Calendar.MONTH) + 1);
                return xgc.toXMLFormat();
            }
            // Date
            if (XMLConstants.DATE_QNAME.equals(schemaTypeQName)) {
                if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                    xgc.setYear(-cal.get(Calendar.YEAR));
                }else{
                    xgc.setYear(cal.get(Calendar.YEAR));
                }
                xgc.setMonth(cal.get(Calendar.MONTH) + 1);
                xgc.setDay(cal.get(Calendar.DATE));
                return xgc.toXMLFormat();
            }
            // Time
            if (XMLConstants.TIME_QNAME.equals(schemaTypeQName)) {
                xgc.setTime(
                        cal.get(Calendar.HOUR_OF_DAY),
                        cal.get(Calendar.MINUTE),
                        cal.get(Calendar.SECOND),
                        cal.get(Calendar.MILLISECOND));
                return truncateMillis(xgc.toXMLFormat());
            }
            // DateTime
            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            xgc.setMonth(cal.get(Calendar.MONTH) + 1);
            xgc.setDay(cal.get(Calendar.DATE));
            xgc.setTime(
                    cal.get(Calendar.HOUR_OF_DAY),
                    cal.get(Calendar.MINUTE),
                    cal.get(Calendar.SECOND),
                    cal.get(Calendar.MILLISECOND));

            return truncateMillis(xgc.toXMLFormat());
    }

    /**
     * Truncate any trailing zeros from the millisecond portion of a given string.
     * The string is assumed to be in dateTime or time format, as returned by
     * XMLGregorianCalendar.toXMLFormat().
     *
     * @param xmlFormat
     * @return
     */
    private String truncateMillis(String xmlFormat) {
        String result = xmlFormat;
        int dotIdx = xmlFormat.indexOf('.');
        if (dotIdx > 0) {
            String pre = xmlFormat.substring(0, dotIdx);
            String post = "";
            if (xmlFormat.length() > (dotIdx + 4)) {
                post = xmlFormat.substring(dotIdx + 4, xmlFormat.length());
            }
            String milliStr = xmlFormat.substring(dotIdx + 1, dotIdx + 4);
            char[] numbChar = new char[milliStr.length()];
            milliStr.getChars(0, milliStr.length(), numbChar, 0);
            int truncIndex = 2;
            while (truncIndex >= 1 && numbChar[truncIndex] == '0') {
                truncIndex--;
            }
            milliStr = new String(numbChar, 0, truncIndex + 1);
            if (milliStr.length() > 0) {
                milliStr = '.' + milliStr;
                result = pre + milliStr + post;
            } else {
                result = pre + post;
            }
        }
        return result;
    }


    private String stringFromCalendar(Calendar sourceCalendar) {
        if (!(sourceCalendar.isSet(Calendar.HOUR) || sourceCalendar.isSet(Calendar.MINUTE) || sourceCalendar.isSet(Calendar.SECOND) || sourceCalendar.isSet(Calendar.MILLISECOND))) {
            return stringFromCalendar(sourceCalendar, XMLConstants.DATE_QNAME);
        } else if (!(sourceCalendar.isSet(Calendar.YEAR) || sourceCalendar.isSet(Calendar.MONTH) || sourceCalendar.isSet(Calendar.DATE))) {
            return stringFromCalendar(sourceCalendar, XMLConstants.TIME_QNAME);
        } else {
            return stringFromDate(sourceCalendar.getTime());
        }
    }

    public java.util.Date convertStringToDate(String sourceString, QName schemaType) {
        XMLGregorianCalendar xmlGregorianCalender = convertStringToXMLGregorianCalendar(sourceString, schemaType);

        if (schemaType == null) {
            schemaType = xmlGregorianCalender.getXMLSchemaType();
        }

        XMLGregorianCalendar defaults = getDatatypeFactory().newXMLGregorianCalendar();
        defaults.setTimezone(getTimeZone().getRawOffset()/60000);

        GregorianCalendar cal;
        if(xmlGregorianCalender.getTimezone() == DatatypeConstants.FIELD_UNDEFINED){
            cal = xmlGregorianCalender.toGregorianCalendar(getTimeZone(), null, null);
        }else{
            cal = xmlGregorianCalender.toGregorianCalendar();
        }

        cal.setGregorianChange(new Date(Long.MAX_VALUE));
        Date returnDate= cal.getTime();

        return returnDate;
    }


    /**
     * This method returns a dateTime string representing a given
     * java.util.Date.
     *
     * BC dates (sourceDate.getTime() < YEAR_ONE_AD_TIME) are handled
     * as follows: '2007 BC' --> '-2006 AD'
     *
     * @param sourceDate
     * @return
     */
    private String stringFromDate(java.util.Date sourceDate) {
        XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();

        GregorianCalendar cal = new GregorianCalendar(getTimeZone());
        cal.setGregorianChange(new Date(Long.MIN_VALUE));
        cal.setTime(sourceDate);

        if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
            xgc.setYear(-cal.get(Calendar.YEAR));
        }else{
            xgc.setYear(cal.get(Calendar.YEAR));
        }
        xgc.setMonth(cal.get(Calendar.MONTH)+1);
        xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

        xgc.setHour(cal.get(Calendar.HOUR_OF_DAY));
        xgc.setMinute(cal.get(Calendar.MINUTE));
        xgc.setSecond(cal.get(Calendar.SECOND));

        String string= xgc.toXMLFormat();
        string = appendMillis(string, sourceDate.getTime());
        string = appendTimeZone(string);
        return string;

    }

    /**
     * This method returns a string representing a given java.util.Date
     * based on a given schema type QName.
     *
     * BC dates (sourceDate.getTime() < YEAR_ONE_AD_TIME) are handled
     * as follows: '2007 BC' --> '-2006 AD'.
     *
     * @param sourceDate
     * @param schemaType
     * @return
     */
    public String stringFromDate(java.util.Date sourceDate, QName schemaType) {

        XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();


        if (XMLConstants.DATE_QNAME.equals(schemaType)) {

            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));
            xgc.setMonth(cal.get(Calendar.MONTH)+1);
            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }

            return xgc.toXMLFormat();

        }
        if (XMLConstants.TIME_QNAME.equals(schemaType)) {

            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            xgc.setHour(cal.get(Calendar.HOUR_OF_DAY));
            xgc.setMinute(cal.get(Calendar.MINUTE));
            xgc.setSecond(cal.get(Calendar.SECOND));

            String string = xgc.toXMLFormat();
            string = appendMillis(string, sourceDate.getTime());
            return appendTimeZone(string);
        }
        if (XMLConstants.G_DAY_QNAME.equals(schemaType)) {
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);
            xgc.setDay(cal.get(Calendar.DATE));
            return xgc.toXMLFormat();
        }
        if (XMLConstants.G_MONTH_QNAME.equals(schemaType)) {
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            xgc.setMonth(cal.get(Calendar.MONTH)+1);

            String xmlFormat = xgc.toXMLFormat();
            // GMonths have different representations depending on JDK version:
            // JDK 1.5: "--MM--"   JDK 1.6: "--MM"
            // Default support is for 1.6, so if string length == 6, chop off the last two characters
            if (xmlFormat.length() == 6) {
                xmlFormat = xmlFormat.substring(0, 4);
            }

            return xmlFormat;
        }
        if (XMLConstants.G_MONTH_DAY_QNAME.equals(schemaType)) {
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);
            xgc.setMonth(cal.get(Calendar.MONTH)+1);
            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));
            return xgc.toXMLFormat();
        }
        if (XMLConstants.G_YEAR_QNAME.equals(schemaType)) {
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);
            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }

            return xgc.toXMLFormat();
        }
        if (XMLConstants.G_YEAR_MONTH_QNAME.equals(schemaType)) {
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);
            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            xgc.setMonth(cal.get(Calendar.MONTH)+1);

            return xgc.toXMLFormat();
        }
        if (XMLConstants.DURATION_QNAME.equals(schemaType)) {
            throw new IllegalArgumentException();
        }
        // default is dateTime
        GregorianCalendar cal = new GregorianCalendar(getTimeZone());

        cal.setGregorianChange(new Date(Long.MIN_VALUE));
        cal.setTime(sourceDate);
        xgc = getDatatypeFactory().newXMLGregorianCalendar(cal);

        if(!isTimeZoneQualified()){
            xgc.setTimezone(DatatypeConstants.FIELD_UNDEFINED);
        }

        String string =  xgc.toXMLFormat();
        return truncateMillis(string);
    }

    private String stringFromSQLDate(java.sql.Date sourceDate) {

        XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();

        GregorianCalendar cal = new GregorianCalendar(getTimeZone());
        cal.setGregorianChange(new Date(Long.MIN_VALUE));
        cal.setTime(sourceDate);

        if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
            xgc.setYear(-cal.get(Calendar.YEAR));
        }else{
            xgc.setYear(cal.get(Calendar.YEAR));
        }
        xgc.setMonth(cal.get(Calendar.MONTH)+1);
        xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

        return xgc.toXMLFormat();
    }

    private String stringFromSQLDate(java.sql.Date sourceDate, QName schemaType) {
        if (XMLConstants.DATE_TIME_QNAME.equals(schemaType)) {

            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            xgc.setMonth(cal.get(Calendar.MONTH)+1);
            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

            xgc.setHour(cal.get(Calendar.HOUR_OF_DAY));
            xgc.setMinute(cal.get(Calendar.MINUTE));
            xgc.setSecond(cal.get(Calendar.SECOND));
            return xgc.toXMLFormat();

        } else if (XMLConstants.TIME_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            xgc.setHour(cal.get(Calendar.HOUR_OF_DAY));
            xgc.setMinute(cal.get(Calendar.MINUTE));
            xgc.setSecond(cal.get(Calendar.SECOND));

            String string = xgc.toXMLFormat();
            return appendTimeZone(string);

        } else if (XMLConstants.G_DAY_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();

            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));
            return xgc.toXMLFormat();

        } else if (XMLConstants.G_MONTH_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            xgc.setMonth(cal.get(Calendar.MONTH)+1);

            String xmlFormat = xgc.toXMLFormat();
            // GMonths have different representations depending on JDK version:
            // JDK 1.5: "--MM--"   JDK 1.6: "--MM"
            // Default support is for 1.6, so if string length == 6, chop off the last two characters
            if (xmlFormat.length() == 6) {
                xmlFormat = xmlFormat.substring(0, 4);
            }

            return xmlFormat;

        } else if (XMLConstants.G_MONTH_DAY_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            xgc.setMonth(cal.get(Calendar.MONTH)+1);
            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));
            return xgc.toXMLFormat();
        } else if (XMLConstants.G_YEAR_QNAME.equals(schemaType)) {
             XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
             GregorianCalendar cal = new GregorianCalendar(getTimeZone());
             cal.setGregorianChange(new Date(Long.MIN_VALUE));
             cal.setTime(sourceDate);
             if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            return xgc.toXMLFormat();
        } else if (XMLConstants.G_YEAR_MONTH_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            xgc.setMonth(cal.get(Calendar.MONTH)+1);

            return xgc.toXMLFormat();
        } else if (XMLConstants.DURATION_QNAME.equals(schemaType)) {
            throw new IllegalArgumentException();
        } else {
            return stringFromSQLDate(sourceDate);
        }
    }

    private String stringFromSQLTime(Time sourceTime) {
        XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();

        GregorianCalendar cal = new GregorianCalendar(getTimeZone());
        cal.setGregorianChange(new Date(Long.MIN_VALUE));
        cal.setTime(sourceTime);

        xgc.setHour(cal.get(Calendar.HOUR_OF_DAY));
        xgc.setMinute(cal.get(Calendar.MINUTE));
        xgc.setSecond(cal.get(Calendar.SECOND));

        String string= xgc.toXMLFormat();
        return appendTimeZone(string);
    }

    private String stringFromSQLTime(Time sourceTime, QName schemaType) {
        if (XMLConstants.DATE_TIME_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceTime);

            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            xgc.setMonth(cal.get(Calendar.MONTH)+1);
            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

            xgc.setHour(cal.get(Calendar.HOUR_OF_DAY));
            xgc.setMinute(cal.get(Calendar.MINUTE));
            xgc.setSecond(cal.get(Calendar.SECOND));
            String string= xgc.toXMLFormat();
            return appendTimeZone(string);

        } else if (XMLConstants.DATE_QNAME.equals(schemaType)) {

            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceTime);

            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            xgc.setMonth(cal.get(Calendar.MONTH)+1);
            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

            return xgc.toXMLFormat();
        } else if (XMLConstants.G_DAY_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceTime);

            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

            return xgc.toXMLFormat();
        } else if (XMLConstants.G_MONTH_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceTime);

            xgc.setMonth(cal.get(Calendar.MONTH)+1);


            String xmlFormat = xgc.toXMLFormat();
            // GMonths have different representations depending on JDK version:
            // JDK 1.5: "--MM--"   JDK 1.6: "--MM"
            // Default support is for 1.6, so if string length == 6, chop off the last two characters
            if (xmlFormat.length() == 6) {
                xmlFormat = xmlFormat.substring(0, 4);
            }

            return xmlFormat;

        } else if (XMLConstants.G_MONTH_DAY_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceTime);

            xgc.setMonth(cal.get(Calendar.MONTH)+1);
            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

            return xgc.toXMLFormat();

        } else if (XMLConstants.G_YEAR_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceTime);
            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }

            return xgc.toXMLFormat();
        } else if (XMLConstants.G_YEAR_MONTH_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceTime);

            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            xgc.setMonth(cal.get(Calendar.MONTH)+1);

            return xgc.toXMLFormat();
        } else if (XMLConstants.DURATION_QNAME.equals(schemaType)) {
            throw new IllegalArgumentException();
        } else {
            return stringFromSQLTime(sourceTime);
        }
    }


    /**
     * This method returns a dateTime string representing a given
     * Timestamp.
     *
     * BC dates (sourceDate.getTime() < YEAR_ONE_AD_TIME) are handled
     * as follows: '2007 BC' --> '-2006 AD'
     *
     * @param sourceDate
     * @return
     */
    private String stringFromTimestamp(Timestamp sourceDate) {
        GregorianCalendar cal = new GregorianCalendar(getTimeZone());
        cal.setGregorianChange(new Date(Long.MIN_VALUE));
        cal.setTime(sourceDate);

        XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
        if(cal.get(Calendar.ERA)== GregorianCalendar.BC){
            xgc.setYear(-cal.get(Calendar.YEAR));
        }else{
            xgc.setYear(cal.get(Calendar.YEAR));
        }
        xgc.setMonth(cal.get(Calendar.MONTH)+1);
        xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

        xgc.setHour(cal.get(Calendar.HOUR_OF_DAY));
        xgc.setMinute(cal.get(Calendar.MINUTE));
        xgc.setSecond(cal.get(Calendar.SECOND));

        String string= xgc.toXMLFormat();
        string = appendNanos(string, sourceDate);
        return appendTimeZone(string);
    }

    /**
     * This method returns a string representing a given Timestamp
     * based on a given schema type QName.
     *
     * BC dates (sourceDate.getTime() < YEAR_ONE_AD_TIME) are handled
     * as follows: '2007 BC' --> '-2006 AD'.
     *
     * @param sourceDate
     * @param schemaType
     * @return
     */
    private String stringFromTimestamp(Timestamp sourceDate, QName schemaType) {

        if (XMLConstants.DATE_QNAME.equals(schemaType)) {
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();

            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            xgc.setMonth(cal.get(Calendar.MONTH)+1);
            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

            return xgc.toXMLFormat();
        }
        if (XMLConstants.TIME_QNAME.equals(schemaType)) {

            Calendar cal = Calendar.getInstance(getTimeZone());
            cal.setTimeInMillis(sourceDate.getTime());

            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            xgc.setHour(cal.get(Calendar.HOUR_OF_DAY));
            xgc.setMinute(cal.get(Calendar.MINUTE));
            xgc.setSecond(cal.get(Calendar.SECOND));

            String string = xgc.toXMLFormat();
            return appendNanos(string, sourceDate);

        }
        if (XMLConstants.G_DAY_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);

            xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

            return xgc.toXMLFormat();
        }
        if (XMLConstants.G_MONTH_QNAME.equals(schemaType)) {
             XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
             GregorianCalendar cal = new GregorianCalendar(getTimeZone());
             cal.setGregorianChange(new Date(Long.MIN_VALUE));
             cal.setTime(sourceDate);

            xgc.setMonth(cal.get(Calendar.MONTH)+1);

            String xmlFormat = xgc.toXMLFormat();
            // GMonths have different representations depending on JDK version:
            // JDK 1.5: "--MM--"   JDK 1.6: "--MM"
            // Default support is for 1.6, so if string length == 6, chop off the last two characters
            if (xmlFormat.length() == 6) {
                xmlFormat = xmlFormat.substring(0, 4);
            }

            return xmlFormat;
        }
        if (XMLConstants.G_MONTH_DAY_QNAME.equals(schemaType)) {

             XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
             GregorianCalendar cal = new GregorianCalendar(getTimeZone());
             cal.setGregorianChange(new Date(Long.MIN_VALUE));
             cal.setTime(sourceDate);

             xgc.setMonth(cal.get(Calendar.MONTH)+1);
             xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));
             return xgc.toXMLFormat();
        }
        if (XMLConstants.G_YEAR_QNAME.equals(schemaType)) {
             XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
             GregorianCalendar cal = new GregorianCalendar(getTimeZone());
             cal.setGregorianChange(new Date(Long.MIN_VALUE));
             cal.setTime(sourceDate);

            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }

            return xgc.toXMLFormat();
        }
        if (XMLConstants.G_YEAR_MONTH_QNAME.equals(schemaType)) {
            XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
            GregorianCalendar cal = new GregorianCalendar(getTimeZone());
            cal.setGregorianChange(new Date(Long.MIN_VALUE));
            cal.setTime(sourceDate);
            if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
                xgc.setYear(-cal.get(Calendar.YEAR));
            }else{
                xgc.setYear(cal.get(Calendar.YEAR));
            }
            xgc.setMonth(cal.get(Calendar.MONTH)+1);

            return xgc.toXMLFormat();
        }
        if (XMLConstants.DURATION_QNAME.equals(schemaType)) {
            throw new IllegalArgumentException();
        }
        // default is dateTime
        XMLGregorianCalendar xgc = getDatatypeFactory().newXMLGregorianCalendar();
        GregorianCalendar cal = new GregorianCalendar(getTimeZone());
        cal.setGregorianChange(new Date(Long.MIN_VALUE));
        cal.setTime(sourceDate);
        if(cal.get(Calendar.ERA) == GregorianCalendar.BC){
            xgc.setYear(-cal.get(Calendar.YEAR));
        }else{
            xgc.setYear(cal.get(Calendar.YEAR));
        }
        xgc.setMonth(cal.get(Calendar.MONTH)+1);
        xgc.setDay(cal.get(Calendar.DAY_OF_MONTH));

        xgc.setHour(cal.get(Calendar.HOUR_OF_DAY));
        xgc.setMinute(cal.get(Calendar.MINUTE));
        xgc.setSecond(cal.get(Calendar.SECOND));

        String string= xgc.toXMLFormat();

        string = appendNanos(string, sourceDate);
        return appendTimeZone(string);
    }

    private String stringFromXMLGregorianCalendar(XMLGregorianCalendar cal, QName schemaTypeQName) {
        return stringFromCalendar(cal.toGregorianCalendar(), schemaTypeQName);
    }
   
    private String stringFromXMLGregorianCalendar(XMLGregorianCalendar cal) {
        return cal.toXMLFormat();
    }

    private String stringFromDuration(Duration dur) {
        return dur.toString();
    }

    private String stringFromQName(QName sourceQName) {
        // String will be formatted as: {namespaceURI}localPart
        return sourceQName.toString();
    }

    private QName qnameFromString(String sourceString) {
        // String will be formatted as: {namespaceURI}localPart
        if (sourceString.indexOf('{') != -1) {
            String uri = sourceString.substring(sourceString.indexOf('{') + 1, sourceString.indexOf('}'));
            String localpart = sourceString.substring(sourceString.indexOf('}') + 1);
            return new QName(uri, localpart);
        } else {
            return new QName(sourceString);
        }
    }

    /**
     * INTERNAL:
     * Converts a String which is in Base64 format to a Byte[]
     */
    public byte[] convertSchemaBase64ToByteArray(Object sourceObject) throws ConversionException {
        if (!(sourceObject instanceof String)) {
            throw ConversionException.couldNotBeConverted(sourceObject, ClassConstants.APBYTE);
        }
        byte[] bytes = Base64.base64Decode(((String) sourceObject).getBytes());
        return bytes;
    }

    protected Byte[] convertSchemaBase64ToByteObjectArray(Object sourceObject) throws ConversionException {
        byte[] bytes = convertSchemaBase64ToByteArray(sourceObject);
        Byte[] objectBytes = new Byte[bytes.length];
        for (int index = 0; index < bytes.length; index++) {
            objectBytes[index] = new Byte(bytes[index]);
        }
        return objectBytes;
    }

    public String buildBase64StringFromBytes(byte[] bytes) {
        byte[] convertedBytes = Base64.base64Encode(bytes);
        StringBuffer buffer = new StringBuffer();
        for (int i = 0; i < convertedBytes.length; i++) {
            buffer.append((char) convertedBytes[i]);
        }
        return buffer.toString();
    }

    public String buildBase64StringFromObjectBytes(Byte[] bytes) {
        byte[] primitiveBytes = new byte[bytes.length];
        for (int i = 0; i < bytes.length; i++) {
            primitiveBytes[i] = bytes[i].byteValue();
        }
        return buildBase64StringFromBytes(primitiveBytes);
    }

    protected String buildHexStringFromObjectBytes(Byte[] bytes) {
        byte[] primitiveBytes = new byte[bytes.length];
        for (int i = 0; i < bytes.length; i++) {
            primitiveBytes[i] = bytes[i].byteValue();
        }
        return Helper.buildHexStringFromBytes(primitiveBytes);
    }

    protected List convertStringToList(Object sourceObject) throws ConversionException {
        ArrayList list = new ArrayList();
        if (sourceObject instanceof String) {
            StringTokenizer tokenizer = new StringTokenizer((String) sourceObject, " ");
            while (tokenizer.hasMoreElements()) {
                String token = tokenizer.nextToken();
                list.add(token);
            }
        }
        return list;
    }

    protected String convertListToString(Object sourceObject) throws ConversionException {
        String returnString = new String();
        if (sourceObject instanceof List) {
            List list = (List) sourceObject;
            for (int i = 0; i < list.size(); i++) {
                Object next = list.get(i);
                if (next instanceof String) {
                    if (i > 0) {
                        returnString += " ";
                    }
                    returnString = returnString + next;
                }
            }
        }
        return returnString;
    }

    private TimeZone convertStringToTimeZone(String string) {
        if (GMT_SUFFIX.equals(string)) {
            return TimeZone.getTimeZone(GMT_ID);
        } else {
            return TimeZone.getTimeZone(GMT_ID + string);
        }
    }

    public static HashMap getDefaultXMLTypes() {
        if (defaultXMLTypes == null) {
            defaultXMLTypes = buildXMLTypes();
        }
        return defaultXMLTypes;
    }

    public static HashMap getDefaultJavaTypes() {
        if (defaultJavaTypes == null) {
            defaultJavaTypes = buildJavaTypes();
        }
        return defaultJavaTypes;
    }

    /**
    * Build and return a Hashtable containing the default XML to Java conversion pairs
    */
    private static HashMap buildXMLTypes() {
        HashMap XMLTypes = new HashMap();

        //jaxb 1.0 spec pairs
        XMLTypes.put(XMLConstants.BASE_64_BINARY_QNAME, ClassConstants.APBYTE);
        XMLTypes.put(XMLConstants.BOOLEAN_QNAME, ClassConstants.PBOOLEAN);
        XMLTypes.put(XMLConstants.BYTE_QNAME, ClassConstants.PBYTE);
        XMLTypes.put(XMLConstants.DATE_QNAME, ClassConstants.CALENDAR);
        XMLTypes.put(XMLConstants.DATE_TIME_QNAME, ClassConstants.CALENDAR);
        XMLTypes.put(XMLConstants.DECIMAL_QNAME, ClassConstants.BIGDECIMAL);
        XMLTypes.put(XMLConstants.DOUBLE_QNAME, ClassConstants.PDOUBLE);
        XMLTypes.put(XMLConstants.FLOAT_QNAME, ClassConstants.PFLOAT);
        XMLTypes.put(XMLConstants.HEX_BINARY_QNAME, ClassConstants.APBYTE);
        XMLTypes.put(XMLConstants.INT_QNAME, ClassConstants.PINT);
        XMLTypes.put(XMLConstants.INTEGER_QNAME, ClassConstants.BIGINTEGER);
        XMLTypes.put(XMLConstants.LONG_QNAME, ClassConstants.PLONG);
        XMLTypes.put(XMLConstants.QNAME_QNAME, XMLConstants.QNAME_CLASS);
        XMLTypes.put(XMLConstants.SHORT_QNAME, ClassConstants.PSHORT);
        XMLTypes.put(XMLConstants.STRING_QNAME, ClassConstants.STRING);
        XMLTypes.put(XMLConstants.TIME_QNAME, ClassConstants.CALENDAR);
        XMLTypes.put(XMLConstants.UNSIGNED_BYTE_QNAME, ClassConstants.PSHORT);
        XMLTypes.put(XMLConstants.UNSIGNED_INT_QNAME, ClassConstants.PLONG);
        XMLTypes.put(XMLConstants.UNSIGNED_SHORT_QNAME, ClassConstants.PINT);
        XMLTypes.put(XMLConstants.ANY_SIMPLE_TYPE_QNAME, ClassConstants.STRING);

        return XMLTypes;
    }

    /**
     * Build and return a Hashtable containing the default Java to XML conversion pairs
     */
    private static HashMap buildJavaTypes() {
        HashMap javaTypes = new HashMap();

        //jaxb 1.0 spec pairs
        javaTypes.put(ClassConstants.APBYTE, XMLConstants.HEX_BINARY_QNAME);
        javaTypes.put(ClassConstants.BIGDECIMAL, XMLConstants.DECIMAL_QNAME);
        javaTypes.put(ClassConstants.BIGINTEGER, XMLConstants.INTEGER_QNAME);
        javaTypes.put(ClassConstants.PBOOLEAN, XMLConstants.BOOLEAN_QNAME);
        javaTypes.put(ClassConstants.PBYTE, XMLConstants.BYTE_QNAME);
        javaTypes.put(ClassConstants.CALENDAR, XMLConstants.DATE_TIME_QNAME);
        javaTypes.put(ClassConstants.PDOUBLE, XMLConstants.DOUBLE_QNAME);
        javaTypes.put(ClassConstants.PFLOAT, XMLConstants.FLOAT_QNAME);
        javaTypes.put(ClassConstants.PINT, XMLConstants.INT_QNAME);
        javaTypes.put(ClassConstants.PLONG, XMLConstants.LONG_QNAME);
        javaTypes.put(ClassConstants.PSHORT, XMLConstants.SHORT_QNAME);
        javaTypes.put(XMLConstants.QNAME_CLASS, XMLConstants.QNAME_QNAME);
        javaTypes.put(ClassConstants.STRING, XMLConstants.STRING_QNAME);

        //other pairs
        javaTypes.put(ClassConstants.ABYTE, XMLConstants.HEX_BINARY_QNAME);
        javaTypes.put(ClassConstants.BOOLEAN, XMLConstants.BOOLEAN_QNAME);
        javaTypes.put(ClassConstants.BYTE, XMLConstants.BYTE_QNAME);
        javaTypes.put(ClassConstants.GREGORIAN_CALENDAR, XMLConstants.DATE_TIME_QNAME);
        javaTypes.put(ClassConstants.DOUBLE, XMLConstants.DOUBLE_QNAME);
        javaTypes.put(ClassConstants.FLOAT, XMLConstants.FLOAT_QNAME);
        javaTypes.put(ClassConstants.INTEGER, XMLConstants.INT_QNAME);
        javaTypes.put(ClassConstants.LONG, XMLConstants.LONG_QNAME);
        javaTypes.put(ClassConstants.SHORT, XMLConstants.SHORT_QNAME);
        javaTypes.put(ClassConstants.UTILDATE, XMLConstants.DATE_TIME_QNAME);

        return javaTypes;
    }

    private String appendTimeZone(String string) {
        if (!timeZoneQualified) {
            return string;
        }

        StringBuilder stringBuilder = new StringBuilder(string);

        // GMT Time Zone
        int rawMinuteOffset = getTimeZone().getRawOffset() / 60000;
        if (0 == rawMinuteOffset) {
            stringBuilder.append(GMT_SUFFIX);
            return stringBuilder.toString();
        }

        // +HH:MM
        if (rawMinuteOffset < 0) {
            stringBuilder.append('-');
            rawMinuteOffset = Math.abs(rawMinuteOffset);
        } else {
            stringBuilder.append('+');
        }
        int hourOffset = rawMinuteOffset / 60;
        if (hourOffset < 10) {
            stringBuilder.append('0');
        }
        stringBuilder.append(hourOffset);
        stringBuilder.append(':');
        int minuteOffset = rawMinuteOffset % 60;
        if (minuteOffset < 10) {
            stringBuilder.append('0');
        }
        stringBuilder.append(minuteOffset);
        return stringBuilder.toString();
    }

    /**
     * INTERNAL:
     */
    public Object clone() {
        XMLConversionManager clone = (XMLConversionManager) super.clone();
        return clone;
    }

    /**
     * Convenience method that appends nanosecond values from a given
     * time to a given string.
     *
     * @param string
     * @param time
     * @return
     */
    private String appendNanos(String string, Timestamp ts) {
        StringBuilder strBldr = new StringBuilder(string);
        int nanos = ts.getNanos();
        strBldr.append(nanos==0 ? ".0" : '.' + Helper.buildZeroPrefixAndTruncTrailZeros(nanos, TOTAL_NS_DIGITS)).toString();
        return strBldr.toString();
    }

    /**
     * Convenience method that appends millisecond values from a given
     * time to a given string.
     *
     * @param string
     * @param time
     * @return
     */
    private String appendMillis(String string, long time) {
        StringBuilder strBldr = new StringBuilder(string);
        int msns = (int) (time % 1000);
        if (msns < 0) {
            // adjust for negative time values, i.e. before Epoch
            msns = msns + 1000;
        }
        strBldr.append(msns==0 ? ".0" : '.' + Helper.buildZeroPrefixAndTruncTrailZeros(msns, TOTAL_MS_DIGITS)).toString();
        return strBldr.toString();
    }

}
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