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/**
 * This file is part of the CRISTAL-iSE XPath Outcome Initiator module.
 * Copyright (c) 2001-2016 The CRISTAL Consortium. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; either version 3 of the License, or (at
 * your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; with out even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *
 * http://www.fsf.org/licensing/licenses/lgpl.html
 */
package org.cristalise.kernel.persistency.outcomeinit;

import static org.cristalise.kernel.persistency.outcomeinit.SystemProperties.SimpleType_DefaultValues;

/*
 * Copied from project org.apache.xmlbeans version 3.0.1
 *
 * TODO: Comment on enumerations? Comment on facets? Have a verbose option? Have a sample data
 * option, would create valid instance with sample data? Add the pattern facet; this is tricky,
 * considering the relationship with length
 */

import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.*;

import javax.xml.namespace.QName;

import org.apache.commons.lang3.StringUtils;
import org.apache.xmlbeans.GDate;
import org.apache.xmlbeans.GDateBuilder;
import org.apache.xmlbeans.GDuration;
import org.apache.xmlbeans.GDurationBuilder;
import org.apache.xmlbeans.SchemaLocalElement;
import org.apache.xmlbeans.SchemaParticle;
import org.apache.xmlbeans.SchemaProperty;
import org.apache.xmlbeans.SchemaType;
import org.apache.xmlbeans.SimpleValue;
import org.apache.xmlbeans.XmlAnySimpleType;
import org.apache.xmlbeans.XmlCursor;
import org.apache.xmlbeans.XmlDate;
import org.apache.xmlbeans.XmlDateTime;
import org.apache.xmlbeans.XmlDecimal;
import org.apache.xmlbeans.XmlDuration;
import org.apache.xmlbeans.XmlGDay;
import org.apache.xmlbeans.XmlGMonth;
import org.apache.xmlbeans.XmlGMonthDay;
import org.apache.xmlbeans.XmlGYear;
import org.apache.xmlbeans.XmlGYearMonth;
import org.apache.xmlbeans.XmlInteger;
import org.apache.xmlbeans.XmlObject;
import org.apache.xmlbeans.XmlOptions;
import org.apache.xmlbeans.XmlTime;
import org.apache.xmlbeans.impl.util.HexBin;
import org.apache.xmlbeans.soap.SOAPArrayType;
import org.apache.xmlbeans.soap.SchemaWSDLArrayType;

public class SampleXmlUtil {
    private boolean _soapEnc;
    private static final int MAX_ELEMENTS = 1000;
    private int _nElements;
    private static final String DEFAULT_VALUE_SEPARATOR = ",";
    private static final String MAP_VALUE_SEPARATOR = ":";
    private Map simpleTypeDefaults = new HashMap<>();

    private SampleXmlUtil(boolean soapEnc) {
        _soapEnc = soapEnc;
        String propertyValues = SimpleType_DefaultValues.getString("");
        simpleTypeDefaults = loadMapValues(propertyValues);
    }

    public static String createSampleForType(SchemaType sType) {
        XmlObject object = XmlObject.Factory.newInstance();
        XmlCursor cursor = object.newCursor();
        // Skip the document node
        cursor.toNextToken();
        // Using the type and the cursor, call the utility method to get a
        // sample XML payload for that Schema element
        new SampleXmlUtil(false).createSampleForType(sType, cursor);
        // Cursor now contains the sample payload
        // Pretty print the result. Note that the cursor is positioned at the
        // end of the doc so we use the original xml object that the cursor was
        // created upon to do the xmlText() against.
        XmlOptions options = new XmlOptions();
        options.setSavePrettyPrint(true);
        options.setSavePrettyPrintIndent(2);
        options.setSaveAggressiveNamespaces(true);
        return object.xmlText(options);
    }

    Random _picker = new Random(1);

    /**
     * Cursor position Before: ^ After: ^
     */
    private void createSampleForType(SchemaType stype, XmlCursor xmlc) {
        if (_typeStack.contains(stype))
            return;

        _typeStack.add(stype);

        try {
            if (stype.isSimpleType() || stype.isURType()) {
                processSimpleType(stype, xmlc);
                return;
            }

            // complex Type
            // ^
            processAttributes(stype, xmlc);

            // ^
            switch (stype.getContentType()) {
                case SchemaType.NOT_COMPLEX_TYPE:
                case SchemaType.EMPTY_CONTENT:
                    // noop
                    break;
                case SchemaType.SIMPLE_CONTENT: {
                    processSimpleType(stype, xmlc);
                }
                    break;
                case SchemaType.MIXED_CONTENT:
                    xmlc.insertChars(pick(WORDS) + " ");
                    if (stype.getContentModel() != null) {
                        processParticle(stype.getContentModel(), xmlc, true);
                    }
                    xmlc.insertChars(pick(WORDS));
                    break;
                case SchemaType.ELEMENT_CONTENT:
                    if (stype.getContentModel() != null) {
                        processParticle(stype.getContentModel(), xmlc, false);
                    }
                    break;
            }
        } finally {
            _typeStack.remove(_typeStack.size() - 1);
        }
    }

    private void processSimpleType(SchemaType stype, XmlCursor xmlc) {
        String sample = sampleDataForSimpleType(stype);
        xmlc.insertChars(sample);
    }

    private String sampleDataForSimpleType(SchemaType sType) {
        if (XmlObject.type.equals(sType))
            return "anyType";

        if (XmlAnySimpleType.type.equals(sType))
            return "anySimpleType";

        if (sType.getSimpleVariety() == SchemaType.LIST) {
            SchemaType itemType = sType.getListItemType();
            StringBuffer sb = new StringBuffer();
            int length = pickLength(sType);
            if (length > 0)
                sb.append(sampleDataForSimpleType(itemType));
            for (int i = 1; i < length; i += 1) {
                sb.append(' ');
                sb.append(sampleDataForSimpleType(itemType));
            }
            return sb.toString();
        }

        if (sType.getSimpleVariety() == SchemaType.UNION) {
            SchemaType[] possibleTypes = sType.getUnionConstituentTypes();
            if (possibleTypes.length == 0)
                return "";
            return sampleDataForSimpleType(possibleTypes[pick(possibleTypes.length)]);
        }

        XmlAnySimpleType[] enumValues = sType.getEnumerationValues();
        if (enumValues != null && enumValues.length > 0) {
            return enumValues[0].getStringValue();
        }

        switch (sType.getPrimitiveType().getBuiltinTypeCode()) {
            default:
            case SchemaType.BTC_NOT_BUILTIN:
                return "";

            case SchemaType.BTC_ANY_TYPE:
            case SchemaType.BTC_ANY_SIMPLE:
                return "anything";

            case SchemaType.BTC_BOOLEAN:
                return findValue(SchemaType.BTC_BOOLEAN);

            case SchemaType.BTC_BASE_64_BINARY: {
                String result = null;
                try {
                    result = new String(
                            Base64.getEncoder().encode(formatToLength(pick(WORDS), sType).getBytes("utf-8")));
                } catch (java.io.UnsupportedEncodingException e) {
                    /* Can't possibly happen */ }
                return result;
            }

            case SchemaType.BTC_HEX_BINARY:
                return HexBin.encode(formatToLength(pick(WORDS), sType));

            case SchemaType.BTC_ANY_URI:
                return formatToLength("http://www." + pick(DNS1) + "." + pick(DNS2) + "/"
                        + pick(WORDS) + "/" + pick(WORDS), sType);

            case SchemaType.BTC_QNAME:
                return formatToLength("qname", sType);

            case SchemaType.BTC_NOTATION:
                return formatToLength("notation", sType);

            case SchemaType.BTC_FLOAT:
                return findValue(SchemaType.BTC_FLOAT);
            case SchemaType.BTC_DOUBLE:
                return findValue(SchemaType.BTC_DOUBLE);
            case SchemaType.BTC_DECIMAL:
                switch (closestBuiltin(sType).getBuiltinTypeCode()) {
                    case SchemaType.BTC_SHORT:
                        return formatDecimal(findValue(SchemaType.BTC_SHORT), sType);
                    case SchemaType.BTC_UNSIGNED_SHORT:
                        return formatDecimal("0", sType);
                    case SchemaType.BTC_BYTE:
                        return formatDecimal(findValue(SchemaType.BTC_BYTE), sType);
                    case SchemaType.BTC_UNSIGNED_BYTE:
                        return formatDecimal("0", sType);
                    case SchemaType.BTC_INT:
                        return formatDecimal(findValue(SchemaType.BTC_INT), sType);
                    case SchemaType.BTC_UNSIGNED_INT:
                        return formatDecimal("0", sType);
                    case SchemaType.BTC_LONG:
                        return formatDecimal(findValue(SchemaType.BTC_LONG), sType);
                    case SchemaType.BTC_UNSIGNED_LONG:
                        return formatDecimal("0", sType);
                    case SchemaType.BTC_INTEGER:
                        return formatDecimal(findValue(SchemaType.BTC_INTEGER), sType);
                    case SchemaType.BTC_NON_POSITIVE_INTEGER:
                        return formatDecimal("0", sType);
                    case SchemaType.BTC_NEGATIVE_INTEGER:
                        return formatDecimal("-1", sType);
                    case SchemaType.BTC_NON_NEGATIVE_INTEGER:
                        return formatDecimal("0", sType);
                    case SchemaType.BTC_POSITIVE_INTEGER:
                        return formatDecimal("0", sType);
                    default:
                    case SchemaType.BTC_DECIMAL:
                        return formatDecimal(findValue(SchemaType.BTC_DECIMAL), sType);
                }

            case SchemaType.BTC_STRING: {
                String result;
                switch (closestBuiltin(sType).getBuiltinTypeCode()) {
                    case SchemaType.BTC_STRING:
                        result = findValue(SchemaType.BTC_STRING);
                        break;
                    case SchemaType.BTC_NORMALIZED_STRING:
                        result = "string";
                        break;

                    case SchemaType.BTC_TOKEN:
                        result = "token";
                        break;

                    default:
                        result = "";
                        break;
                }

                return formatToLength(result, sType);
            }

            case SchemaType.BTC_DURATION:
                return formatDuration(sType);

            case SchemaType.BTC_DATE_TIME:
            case SchemaType.BTC_TIME:
            case SchemaType.BTC_DATE:
            case SchemaType.BTC_G_YEAR_MONTH:
            case SchemaType.BTC_G_YEAR:
            case SchemaType.BTC_G_MONTH_DAY:
            case SchemaType.BTC_G_DAY:
            case SchemaType.BTC_G_MONTH:
                return formatDate(sType);
        }
    }

    // a bit from the Aenid
    public static final String[] WORDS = new String[] {"ipsa", "iovis", "rapidum", "iaculata", "e",
            "nubibus", "ignem", "disiecitque", "rates", "evertitque", "aequora", "ventis", "illum",
            "exspirantem", "transfixo", "pectore", "flammas", "turbine", "corripuit", "scopuloque",
            "infixit", "acuto", "ast", "ego", "quae", "divum", "incedo", "regina", "iovisque", "et",
            "soror", "et", "coniunx", "una", "cum", "gente", "tot", "annos", "bella", "gero", "et",
            "quisquam", "numen", "iunonis", "adorat", "praeterea", "aut", "supplex", "aris",
            "imponet", "honorem", "talia", "flammato", "secum", "dea", "corde", "volutans",
            "nimborum", "in", "patriam", "loca", "feta", "furentibus", "austris", "aeoliam",
            "venit", "hic", "vasto", "rex", "aeolus", "antro", "luctantis", "ventos",
            "tempestatesque", "sonoras", "imperio", "premit", "ac", "vinclis", "et", "carcere",
            "frenat", "illi", "indignantes", "magno", "cum", "murmure", "montis", "circum",
            "claustra", "fremunt", "celsa", "sedet", "aeolus", "arce", "sceptra", "tenens",
            "mollitque", "animos", "et", "temperat", "iras", "ni", "faciat", "maria", "ac",
            "terras", "caelumque", "profundum", "quippe", "ferant", "rapidi", "secum", "verrantque",
            "per", "auras", "sed", "pater", "omnipotens", "speluncis", "abdidit", "atris", "hoc",
            "metuens", "molemque", "et", "montis", "insuper", "altos", "imposuit", "regemque",
            "dedit", "qui", "foedere", "certo", "et", "premere", "et", "laxas", "sciret", "dare",
            "iussus", "habenas",};



    private static final String[] DNS1 =
            new String[] {"corp", "your", "my", "sample", "company", "test", "any"};
    private static final String[] DNS2 =
            new String[] {"com", "org", "com", "gov", "org", "com", "org", "com", "edu"};

    private int pick(int n) {
        return _picker.nextInt(n);
    }

    private String pick(String[] a) {
        return a[pick(a.length)];
    }

//    private String pick(String[] a, int count) {
//        if (count <= 0)
//            return "";
//
//        int i = pick(a.length);
//        StringBuffer sb = new StringBuffer(a[i]);
//        while (count-- > 0) {
//            i += 1;
//            if (i >= a.length)
//                i = 0;
//            sb.append(' ');
//            sb.append(a[i]);
//        }
//        return sb.toString();
//    }

//    private String pickDigits(int digits) {
//        StringBuffer sb = new StringBuffer();
//        while (digits-- > 0)
//            sb.append(Integer.toString(pick(10)));
//        return sb.toString();
//    }

    private int pickLength(SchemaType sType) {
        XmlInteger length = (XmlInteger) sType.getFacet(SchemaType.FACET_LENGTH);
        if (length != null)
            return length.getBigIntegerValue().intValue();
        XmlInteger min = (XmlInteger) sType.getFacet(SchemaType.FACET_MIN_LENGTH);
        XmlInteger max = (XmlInteger) sType.getFacet(SchemaType.FACET_MAX_LENGTH);
        int minInt, maxInt;
        if (min == null)
            minInt = 0;
        else
            minInt = min.getBigIntegerValue().intValue();
        if (max == null)
            maxInt = Integer.MAX_VALUE;
        else
            maxInt = max.getBigIntegerValue().intValue();
        // We try to keep the length of the array within reasonable limits,
        // at least 1 item and at most 3 if possible
        if (minInt == 0 && maxInt >= 1)
            minInt = 1;
        if (maxInt > minInt + 2)
            maxInt = minInt + 2;
        if (maxInt < minInt)
            maxInt = minInt;
        return minInt + pick(maxInt - minInt);
    }

    /**
     * Formats a given string to the required length, using the following operations: - append the
     * source string to itself as necessary to pass the minLength; - truncate the result of previous
     * step, if necessary, to keep it within minLength.
     */
    private String formatToLength(String s, SchemaType sType) {
        String result = s;
        try {
            SimpleValue min = (SimpleValue) sType.getFacet(SchemaType.FACET_LENGTH);
            if (min == null)
                min = (SimpleValue) sType.getFacet(SchemaType.FACET_MIN_LENGTH);
            if (min != null) {
                int len = min.getIntValue();
                while (result.length() < len)
                    result = result + result;
            }
            SimpleValue max = (SimpleValue) sType.getFacet(SchemaType.FACET_LENGTH);
            if (max == null)
                max = (SimpleValue) sType.getFacet(SchemaType.FACET_MAX_LENGTH);
            if (max != null) {
                int len = max.getIntValue();
                if (result.length() > len)
                    result = result.substring(0, len);
            }
        } catch (Exception e) // intValue can be out of range
        {
        }
        return result;
    }

    private String formatDecimal(String start, SchemaType sType) {
        BigDecimal result = new BigDecimal(start);
        XmlDecimal xmlD;
        xmlD = (XmlDecimal) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
        BigDecimal min = xmlD != null ? xmlD.getBigDecimalValue() : null;
        xmlD = (XmlDecimal) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
        BigDecimal max = xmlD != null ? xmlD.getBigDecimalValue() : null;
        boolean minInclusive = true, maxInclusive = true;
        xmlD = (XmlDecimal) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
        if (xmlD != null) {
            BigDecimal minExcl = xmlD.getBigDecimalValue();
            if (min == null || min.compareTo(minExcl) < 0) {
                min = minExcl;
                minInclusive = false;
            }
        }
        xmlD = (XmlDecimal) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
        if (xmlD != null) {
            BigDecimal maxExcl = xmlD.getBigDecimalValue();
            if (max == null || max.compareTo(maxExcl) > 0) {
                max = maxExcl;
                maxInclusive = false;
            }
        }
        xmlD = (XmlDecimal) sType.getFacet(SchemaType.FACET_TOTAL_DIGITS);
        int totalDigits = -1;
        if (xmlD != null) {
            totalDigits = xmlD.getBigDecimalValue().intValue();

            StringBuffer sb = new StringBuffer(totalDigits);
            for (int i = 0; i < totalDigits; i++)
                sb.append('9');
            BigDecimal digitsLimit = new BigDecimal(sb.toString());
            if (max != null && max.compareTo(digitsLimit) > 0) {
                max = digitsLimit;
                maxInclusive = true;
            }
            digitsLimit = digitsLimit.negate();
            if (min != null && min.compareTo(digitsLimit) < 0) {
                min = digitsLimit;
                minInclusive = true;
            }
        }

        int sigMin = min == null ? 1 : result.compareTo(min);
        int sigMax = max == null ? -1 : result.compareTo(max);
        boolean minOk = sigMin > 0 || sigMin == 0 && minInclusive;
        boolean maxOk = sigMax < 0 || sigMax == 0 && maxInclusive;

        // Compute the minimum increment
        xmlD = (XmlDecimal) sType.getFacet(SchemaType.FACET_FRACTION_DIGITS);
        int fractionDigits = -1;
        BigDecimal increment;
        if (xmlD == null)
            increment = new BigDecimal(1);
        else {
            fractionDigits = xmlD.getBigDecimalValue().intValue();
            if (fractionDigits > 0) {
                StringBuffer sb = new StringBuffer("0.");
                for (int i = 1; i < fractionDigits; i++)
                    sb.append('0');
                sb.append('1');
                increment = new BigDecimal(sb.toString());
            } else
                increment = new BigDecimal(1.0);
        }

        if (minOk && maxOk) {
            // OK
        } else if (minOk && !maxOk) {
            // TOO BIG
            if (maxInclusive)
                result = max;
            else
                result = max.subtract(increment);
        } else if (!minOk && maxOk) {
            // TOO SMALL
            if (minInclusive)
                result = min;
            else
                result = min.add(increment);
        } else {
            // MIN > MAX!!
        }

        // We have the number
        // Adjust the scale according to the totalDigits and fractionDigits
        int digits = 0;
        BigDecimal ONE = new BigDecimal(BigInteger.ONE);
        for (BigDecimal n = result; n.abs().compareTo(ONE) >= 0; digits++)
            n = n.movePointLeft(1);

        if (fractionDigits > 0)
            if (totalDigits >= 0)
                result = result.setScale(Math.max(fractionDigits, totalDigits - digits));
            else
                result = result.setScale(fractionDigits);
        else if (fractionDigits == 0)
            result = result.setScale(0);

        return result.toString();
    }

    private String formatDuration(SchemaType sType) {
        XmlDuration d = (XmlDuration) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
        GDuration minInclusive = null;
        if (d != null)
            minInclusive = d.getGDurationValue();

        d = (XmlDuration) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
        GDuration maxInclusive = null;
        if (d != null)
            maxInclusive = d.getGDurationValue();

        d = (XmlDuration) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
        GDuration minExclusive = null;
        if (d != null)
            minExclusive = d.getGDurationValue();

        d = (XmlDuration) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
        GDuration maxExclusive = null;
        if (d != null)
            maxExclusive = d.getGDurationValue();

        GDurationBuilder gdurb = new GDurationBuilder();
//        BigInteger min, max;

        gdurb.setSecond(pick(800000));
        gdurb.setMonth(pick(20));

        // Years
        // Months
        // Days
        // Hours
        // Minutes
        // Seconds
        // Fractions
        if (minInclusive != null) {
            if (gdurb.getYear() < minInclusive.getYear())
                gdurb.setYear(minInclusive.getYear());
            if (gdurb.getMonth() < minInclusive.getMonth())
                gdurb.setMonth(minInclusive.getMonth());
            if (gdurb.getDay() < minInclusive.getDay())
                gdurb.setDay(minInclusive.getDay());
            if (gdurb.getHour() < minInclusive.getHour())
                gdurb.setHour(minInclusive.getHour());
            if (gdurb.getMinute() < minInclusive.getMinute())
                gdurb.setMinute(minInclusive.getMinute());
            if (gdurb.getSecond() < minInclusive.getSecond())
                gdurb.setSecond(minInclusive.getSecond());
            if (gdurb.getFraction().compareTo(minInclusive.getFraction()) < 0)
                gdurb.setFraction(minInclusive.getFraction());
        }

        if (maxInclusive != null) {
            if (gdurb.getYear() > maxInclusive.getYear())
                gdurb.setYear(maxInclusive.getYear());
            if (gdurb.getMonth() > maxInclusive.getMonth())
                gdurb.setMonth(maxInclusive.getMonth());
            if (gdurb.getDay() > maxInclusive.getDay())
                gdurb.setDay(maxInclusive.getDay());
            if (gdurb.getHour() > maxInclusive.getHour())
                gdurb.setHour(maxInclusive.getHour());
            if (gdurb.getMinute() > maxInclusive.getMinute())
                gdurb.setMinute(maxInclusive.getMinute());
            if (gdurb.getSecond() > maxInclusive.getSecond())
                gdurb.setSecond(maxInclusive.getSecond());
            if (gdurb.getFraction().compareTo(maxInclusive.getFraction()) > 0)
                gdurb.setFraction(maxInclusive.getFraction());
        }

        if (minExclusive != null) {
            if (gdurb.getYear() <= minExclusive.getYear())
                gdurb.setYear(minExclusive.getYear() + 1);
            if (gdurb.getMonth() <= minExclusive.getMonth())
                gdurb.setMonth(minExclusive.getMonth() + 1);
            if (gdurb.getDay() <= minExclusive.getDay())
                gdurb.setDay(minExclusive.getDay() + 1);
            if (gdurb.getHour() <= minExclusive.getHour())
                gdurb.setHour(minExclusive.getHour() + 1);
            if (gdurb.getMinute() <= minExclusive.getMinute())
                gdurb.setMinute(minExclusive.getMinute() + 1);
            if (gdurb.getSecond() <= minExclusive.getSecond())
                gdurb.setSecond(minExclusive.getSecond() + 1);
            if (gdurb.getFraction().compareTo(minExclusive.getFraction()) <= 0)
                gdurb.setFraction(minExclusive.getFraction().add(new BigDecimal(0.001)));
        }

        if (maxExclusive != null) {
            if (gdurb.getYear() > maxExclusive.getYear())
                gdurb.setYear(maxExclusive.getYear());
            if (gdurb.getMonth() > maxExclusive.getMonth())
                gdurb.setMonth(maxExclusive.getMonth());
            if (gdurb.getDay() > maxExclusive.getDay())
                gdurb.setDay(maxExclusive.getDay());
            if (gdurb.getHour() > maxExclusive.getHour())
                gdurb.setHour(maxExclusive.getHour());
            if (gdurb.getMinute() > maxExclusive.getMinute())
                gdurb.setMinute(maxExclusive.getMinute());
            if (gdurb.getSecond() > maxExclusive.getSecond())
                gdurb.setSecond(maxExclusive.getSecond());
            if (gdurb.getFraction().compareTo(maxExclusive.getFraction()) > 0)
                gdurb.setFraction(maxExclusive.getFraction());
        }

        gdurb.normalize();
        return gdurb.toString();
    }

    private String formatDate(SchemaType sType) {
        GDateBuilder gdateb = new GDateBuilder(new Date(
                1000L * pick(365 * 24 * 60 * 60) + (30L + pick(20)) * 365 * 24 * 60 * 60 * 1000));
        GDate min = null, max = null;

        // Find the min and the max according to the type
        switch (sType.getPrimitiveType().getBuiltinTypeCode()) {
            case SchemaType.BTC_DATE_TIME: {
                XmlDateTime x = (XmlDateTime) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
                if (x != null)
                    min = x.getGDateValue();
                x = (XmlDateTime) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
                if (x != null)
                    if (min == null || min.compareToGDate(x.getGDateValue()) <= 0)
                        min = x.getGDateValue();

                x = (XmlDateTime) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
                if (x != null)
                    max = x.getGDateValue();
                x = (XmlDateTime) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
                if (x != null)
                    if (max == null || max.compareToGDate(x.getGDateValue()) >= 0)
                        max = x.getGDateValue();
                break;
            }
            case SchemaType.BTC_TIME: {
                XmlTime x = (XmlTime) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
                if (x != null)
                    min = x.getGDateValue();
                x = (XmlTime) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
                if (x != null)
                    if (min == null || min.compareToGDate(x.getGDateValue()) <= 0)
                        min = x.getGDateValue();

                x = (XmlTime) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
                if (x != null)
                    max = x.getGDateValue();
                x = (XmlTime) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
                if (x != null)
                    if (max == null || max.compareToGDate(x.getGDateValue()) >= 0)
                        max = x.getGDateValue();
                break;
            }
            case SchemaType.BTC_DATE: {
                XmlDate x = (XmlDate) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
                if (x != null)
                    min = x.getGDateValue();
                x = (XmlDate) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
                if (x != null)
                    if (min == null || min.compareToGDate(x.getGDateValue()) <= 0)
                        min = x.getGDateValue();

                x = (XmlDate) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
                if (x != null)
                    max = x.getGDateValue();
                x = (XmlDate) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
                if (x != null)
                    if (max == null || max.compareToGDate(x.getGDateValue()) >= 0)
                        max = x.getGDateValue();
                break;
            }
            case SchemaType.BTC_G_YEAR_MONTH: {
                XmlGYearMonth x = (XmlGYearMonth) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
                if (x != null)
                    min = x.getGDateValue();
                x = (XmlGYearMonth) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
                if (x != null)
                    if (min == null || min.compareToGDate(x.getGDateValue()) <= 0)
                        min = x.getGDateValue();

                x = (XmlGYearMonth) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
                if (x != null)
                    max = x.getGDateValue();
                x = (XmlGYearMonth) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
                if (x != null)
                    if (max == null || max.compareToGDate(x.getGDateValue()) >= 0)
                        max = x.getGDateValue();
                break;
            }
            case SchemaType.BTC_G_YEAR: {
                XmlGYear x = (XmlGYear) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
                if (x != null)
                    min = x.getGDateValue();
                x = (XmlGYear) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
                if (x != null)
                    if (min == null || min.compareToGDate(x.getGDateValue()) <= 0)
                        min = x.getGDateValue();

                x = (XmlGYear) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
                if (x != null)
                    max = x.getGDateValue();
                x = (XmlGYear) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
                if (x != null)
                    if (max == null || max.compareToGDate(x.getGDateValue()) >= 0)
                        max = x.getGDateValue();
                break;
            }
            case SchemaType.BTC_G_MONTH_DAY: {
                XmlGMonthDay x = (XmlGMonthDay) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
                if (x != null)
                    min = x.getGDateValue();
                x = (XmlGMonthDay) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
                if (x != null)
                    if (min == null || min.compareToGDate(x.getGDateValue()) <= 0)
                        min = x.getGDateValue();

                x = (XmlGMonthDay) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
                if (x != null)
                    max = x.getGDateValue();
                x = (XmlGMonthDay) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
                if (x != null)
                    if (max == null || max.compareToGDate(x.getGDateValue()) >= 0)
                        max = x.getGDateValue();
                break;
            }
            case SchemaType.BTC_G_DAY: {
                XmlGDay x = (XmlGDay) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
                if (x != null)
                    min = x.getGDateValue();
                x = (XmlGDay) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
                if (x != null)
                    if (min == null || min.compareToGDate(x.getGDateValue()) <= 0)
                        min = x.getGDateValue();

                x = (XmlGDay) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
                if (x != null)
                    max = x.getGDateValue();
                x = (XmlGDay) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
                if (x != null)
                    if (max == null || max.compareToGDate(x.getGDateValue()) >= 0)
                        max = x.getGDateValue();
                break;
            }
            case SchemaType.BTC_G_MONTH: {
                XmlGMonth x = (XmlGMonth) sType.getFacet(SchemaType.FACET_MIN_INCLUSIVE);
                if (x != null)
                    min = x.getGDateValue();
                x = (XmlGMonth) sType.getFacet(SchemaType.FACET_MIN_EXCLUSIVE);
                if (x != null)
                    if (min == null || min.compareToGDate(x.getGDateValue()) <= 0)
                        min = x.getGDateValue();

                x = (XmlGMonth) sType.getFacet(SchemaType.FACET_MAX_INCLUSIVE);
                if (x != null)
                    max = x.getGDateValue();
                x = (XmlGMonth) sType.getFacet(SchemaType.FACET_MAX_EXCLUSIVE);
                if (x != null)
                    if (max == null || max.compareToGDate(x.getGDateValue()) >= 0)
                        max = x.getGDateValue();
                break;
            }
        }

        if (min != null && max == null) {
            if (min.compareToGDate(gdateb) >= 0) {
                // Reset the date to min + (1-8) hours
                Calendar c = gdateb.getCalendar();
                c.add(Calendar.HOUR_OF_DAY, pick(8));
                gdateb = new GDateBuilder(c);
            }
        } else if (min == null && max != null) {
            if (max.compareToGDate(gdateb) <= 0) {
                // Reset the date to max - (1-8) hours
                Calendar c = gdateb.getCalendar();
                c.add(Calendar.HOUR_OF_DAY, 0 - pick(8));
                gdateb = new GDateBuilder(c);
            }
        } else if (min != null && max != null) {
            if (min.compareToGDate(gdateb) >= 0 || max.compareToGDate(gdateb) <= 0) {
                // Find a date between the two
                Calendar c = min.getCalendar();
                Calendar cmax = max.getCalendar();
                c.add(Calendar.HOUR_OF_DAY, 1);
                if (c.after(cmax)) {
                    c.add(Calendar.HOUR_OF_DAY, -1);
                    c.add(Calendar.MINUTE, 1);
                    if (c.after(cmax)) {
                        c.add(Calendar.MINUTE, -1);
                        c.add(Calendar.SECOND, 1);
                        if (c.after(cmax)) {
                            c.add(Calendar.SECOND, -1);
                            c.add(Calendar.MILLISECOND, 1);
                            if (c.after(cmax))
                                c.add(Calendar.MILLISECOND, -1);
                        }
                    }
                }
                gdateb = new GDateBuilder(c);
            }
        }

        gdateb.setBuiltinTypeCode(sType.getPrimitiveType().getBuiltinTypeCode());
        if (pick(2) == 0)
            gdateb.clearTimeZone();
        return gdateb.toString();
    }

    private SchemaType closestBuiltin(SchemaType sType) {
        while (!sType.isBuiltinType())
            sType = sType.getBaseType();
        return sType;
    }

    /**
     * Cracks a combined QName of the form URL:localname
     */
    public static QName crackQName(String qName) {
        String ns;
        String name;

        int index = qName.lastIndexOf(':');
        if (index >= 0) {
            ns = qName.substring(0, index);
            name = qName.substring(index + 1);
        } else {
            ns = "";
            name = qName;
        }

        return new QName(ns, name);
    }


    /**
     * Cursor position: Before this call: ^ (cursor at the ^) After this call:
     * <som text^
     */
    private void processParticle(SchemaParticle sp, XmlCursor xmlc, boolean mixed) {
        int loop = determineMinMaxForSample(sp, xmlc);

        while (loop-- > 0) {
            switch (sp.getParticleType()) {
                case (SchemaParticle.ELEMENT):
                    processElement(sp, xmlc, mixed);
                    break;
                case (SchemaParticle.SEQUENCE):
                    processSequence(sp, xmlc, mixed);
                    break;
                case (SchemaParticle.CHOICE):
                    processChoice(sp, xmlc, mixed);
                    break;
                case (SchemaParticle.ALL):
                    processAll(sp, xmlc, mixed);
                    break;
                case (SchemaParticle.WILDCARD):
                    processWildCard(sp, xmlc, mixed);
                    break;
                default:
                    // throw new Exception("No Match on Schema Particle Type: " +
                    // String.valueOf(sp.getParticleType()));
            }
        }
    }

    private int determineMinMaxForSample(SchemaParticle sp, XmlCursor xmlc) {
        int minOccurs = sp.getIntMinOccurs();
        int maxOccurs = sp.getIntMaxOccurs();

        if (minOccurs == maxOccurs)
            return minOccurs;

        int result = minOccurs;
        if (result == 0 && _nElements < MAX_ELEMENTS)
            result = 1;

        if (sp.getParticleType() != SchemaParticle.ELEMENT)
            return result;

        // it probably only makes sense to put comments in front of individual elements that repeat

        if (sp.getMaxOccurs() == null) {
            // xmlc.insertComment("The next " + getItemNameOrType(sp, xmlc) + " may be repeated " +
            // minOccurs + " or more times");
            if (minOccurs == 0)
                xmlc.insertComment("Zero or more repetitions:");
            else
                xmlc.insertComment(minOccurs + " or more repetitions:");
        } else if (sp.getIntMaxOccurs() > 1) {
            xmlc.insertComment(
                    minOccurs + " to " + String.valueOf(sp.getMaxOccurs()) + " repetitions:");
        } else {
            xmlc.insertComment("Optional:");
        }
        return result;
    }

    /*
     * Return a name for the element or the particle type to use in the comment for minoccurs, max
     * occurs
     */
//    private String getItemNameOrType(SchemaParticle sp, XmlCursor xmlc) {
//        String elementOrTypeName = null;
//        if (sp.getParticleType() == SchemaParticle.ELEMENT) {
//            elementOrTypeName = "Element (" + sp.getName().getLocalPart() + ")";
//        } else {
//            elementOrTypeName = printParticleType(sp.getParticleType());
//        }
//        return elementOrTypeName;
//    }

    private void processElement(SchemaParticle sp, XmlCursor xmlc, boolean mixed) {
        // cast as schema local element
        SchemaLocalElement element = (SchemaLocalElement) sp;
        /// ^ -> ^
        if (_soapEnc)
            xmlc.insertElement(element.getName().getLocalPart()); // soap encoded? drop namespaces.
        else
            xmlc.insertElement(element.getName().getLocalPart(),
                    element.getName().getNamespaceURI());
        _nElements++;
        /// -> ^
        xmlc.toPrevToken();
        // -> stuff^

        createSampleForType(element.getType(), xmlc);
        // -> stuff^
        xmlc.toNextToken();

    }

//    private void moveToken(int numToMove, XmlCursor xmlc) {
//        for (int i = 0; i < Math.abs(numToMove); i++) {
//            if (numToMove < 0) {
//                xmlc.toPrevToken();
//            } else {
//                xmlc.toNextToken();
//            }
//        }
//    }

    private static final String formatQName(XmlCursor xmlc, QName qName) {
        XmlCursor parent = xmlc.newCursor();
        parent.toParent();
        String prefix = parent.prefixForNamespace(qName.getNamespaceURI());
        parent.dispose();
        String name;
        if (prefix == null || prefix.length() == 0)
            name = qName.getLocalPart();
        else
            name = prefix + ":" + qName.getLocalPart();
        return name;
    }

    private static final QName HREF = new QName("href");
    private static final QName ID = new QName("id");
    private static final QName XSI_TYPE =
            new QName("http://www.w3.org/2001/XMLSchema-instance", "type");
    private static final QName ENC_ARRAYTYPE =
            new QName("http://schemas.xmlsoap.org/soap/encoding/", "arrayType");
    private static final QName ENC_OFFSET =
            new QName("http://schemas.xmlsoap.org/soap/encoding/", "offset");

    private static final Set SKIPPED_SOAP_ATTRS =
            new HashSet<>(Arrays.asList(new QName[] {HREF, ID, ENC_OFFSET}));

    private void processAttributes(SchemaType stype, XmlCursor xmlc) {
        if (_soapEnc) {
            QName typeName = stype.getName();
            if (typeName != null) {
                xmlc.insertAttributeWithValue(XSI_TYPE, formatQName(xmlc, typeName));
            }
        }

        SchemaProperty[] attrProps = stype.getAttributeProperties();
        for (int i = 0; i < attrProps.length; i++) {
            SchemaProperty attr = attrProps[i];
            if (_soapEnc) {
                if (SKIPPED_SOAP_ATTRS.contains(attr.getName()))
                    continue;
                if (ENC_ARRAYTYPE.equals(attr.getName())) {
                    SOAPArrayType arrayType = ((SchemaWSDLArrayType) stype.getAttributeModel()
                            .getAttribute(attr.getName())).getWSDLArrayType();
                    if (arrayType != null)
                        xmlc.insertAttributeWithValue(attr.getName(),
                                formatQName(xmlc, arrayType.getQName())
                                        + arrayType.soap11DimensionString());
                    continue;
                }
            }
            String defaultValue = attr.getDefaultText();
            xmlc.insertAttributeWithValue(attr.getName(),
                    defaultValue == null ? sampleDataForSimpleType(attr.getType()) : defaultValue);
        }
    }

    private void processSequence(SchemaParticle sp, XmlCursor xmlc, boolean mixed) {
        SchemaParticle[] spc = sp.getParticleChildren();
        for (int i = 0; i < spc.length; i++) {
            /// maybestuff^
            processParticle(spc[i], xmlc, mixed);
            // maybestuff...morestuff^
            if (mixed && i < spc.length - 1)
                xmlc.insertChars(pick(WORDS));
        }
    }

    private void processChoice(SchemaParticle sp, XmlCursor xmlc, boolean mixed) {
        SchemaParticle[] spc = sp.getParticleChildren();
        xmlc.insertComment("You have a CHOICE of the next " + String.valueOf(spc.length)
                + " items at this level");
        for (int i = 0; i < spc.length; i++) {
            processParticle(spc[i], xmlc, mixed);
        }
    }

    private void processAll(SchemaParticle sp, XmlCursor xmlc, boolean mixed) {
        SchemaParticle[] spc = sp.getParticleChildren();
        // xmlc.insertComment("You may enter the following " + String.valueOf(spc.length) + " items
        // in any order");
        for (int i = 0; i < spc.length; i++) {
            processParticle(spc[i], xmlc, mixed);
            if (mixed && i < spc.length - 1)
                xmlc.insertChars(pick(WORDS));
        }
    }

    private void processWildCard(SchemaParticle sp, XmlCursor xmlc, boolean mixed) {
        xmlc.insertComment("You may enter ANY elements at this point");
        // xmlc.insertElement("AnyElement");
    }

    /**
     * This method will get the base type for the schema type
     */

//    private static QName getClosestName(SchemaType sType) {
//        while (sType.getName() == null)
//            sType = sType.getBaseType();
//
//        return sType.getName();
//    }
//
//    private String printParticleType(int particleType) {
//        StringBuffer returnParticleType = new StringBuffer();
//        returnParticleType.append("Schema Particle Type: ");
//
//        switch (particleType) {
//            case SchemaParticle.ALL:
//                returnParticleType.append("ALL\n");
//                break;
//            case SchemaParticle.CHOICE:
//                returnParticleType.append("CHOICE\n");
//                break;
//            case SchemaParticle.ELEMENT:
//                returnParticleType.append("ELEMENT\n");
//                break;
//            case SchemaParticle.SEQUENCE:
//                returnParticleType.append("SEQUENCE\n");
//                break;
//            case SchemaParticle.WILDCARD:
//                returnParticleType.append("WILDCARD\n");
//                break;
//            default:
//                returnParticleType.append("Schema Particle Type Unknown");
//                break;
//        }
//
//        return returnParticleType.toString();
//    }

    private List _typeStack = new ArrayList<>();

    /**
     * Loads the configured default values for simple types.
     * 
     * @param propertyValues
     * @return
     */
    private Map loadMapValues(String propertyValues) {
        Map defaultTypes = new HashMap<>();
        if (StringUtils.isNotEmpty(propertyValues)) {
            String[] rawValues = StringUtils.split(propertyValues, DEFAULT_VALUE_SEPARATOR);
            for (String s : rawValues) {
                String[] valuePair = StringUtils.split(s, MAP_VALUE_SEPARATOR);
                defaultTypes.put(valuePair[0], valuePair.length == 1 ? "" : valuePair[1]);
            }
        }
        return defaultTypes;
    }

    /**
     * Finds the value for the given type using the type code.
     * 
     * @param code
     * @return
     */
    private String findValue(int code) {
        String keyStr = String.valueOf(code);
        if (simpleTypeDefaults.containsKey(keyStr)) {
            return simpleTypeDefaults.get(keyStr);
        } else {
            switch (code) {
                case SchemaType.BTC_BOOLEAN:
                    return "false";
                case SchemaType.BTC_SHORT:
                case SchemaType.BTC_BYTE:
                case SchemaType.BTC_INT:
                case SchemaType.BTC_INTEGER:
                case SchemaType.BTC_LONG:
                    return "0";
                case SchemaType.BTC_DOUBLE:
                case SchemaType.BTC_FLOAT:
                case SchemaType.BTC_DECIMAL:
                    return "0.0";
                case SchemaType.BTC_STRING:
                default:
                    return StringUtils.EMPTY;
            }
        }
    }
}




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