/*
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2001 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Xerces" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact apache\@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation, and was
 * originally based on software copyright (c) 2001, International
 * Business Machines, Inc., http://www.ibm.com .  For more information
 * on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

/*
 * $Id: UnionDatatypeValidator.hpp,v 1.9 2003/05/15 18:53:27 knoaman Exp $
 * $Log: UnionDatatypeValidator.hpp,v $
 * Revision 1.9  2003/05/15 18:53:27  knoaman
 * Partial implementation of the configurable memory manager.
 *
 * Revision 1.8  2003/02/06 13:51:55  gareth
 * fixed bug with multiple attributes being validated by the same union type.
 *
 * Revision 1.7  2003/01/29 19:55:19  gareth
 * updated to deal with null pointer issue with fValidatedDatatype.
 *
 * Revision 1.6  2003/01/29 19:53:35  gareth
 * we now store information about which validator was used to validate.
 *
 * Revision 1.5  2003/01/10 16:48:47  tng
 * [Bug 14912] crashes inside UnionDatatypeValidator::isSubstitutableBy.   Patch from Alberto Massari.
 *
 * Revision 1.4  2002/12/18 14:17:55  gareth
 * Fix to bug #13438. When you eant a vector that calls delete[] on its members you should use RefArrayVectorOf.
 *
 * Revision 1.3  2002/11/04 14:53:28  tng
 * C++ Namespace Support.
 *
 * Revision 1.2  2002/02/14 15:17:31  peiyongz
 * getEnumString()
 *
 * Revision 1.1.1.1  2002/02/01 22:22:43  peiyongz
 * sane_include
 *
 * Revision 1.9  2001/12/13 16:48:29  peiyongz
 * Avoid dangling pointer
 *
 * Revision 1.8  2001/09/05 20:49:10  knoaman
 * Fix for complexTypes with mixed content model.
 *
 * Revision 1.7  2001/08/31 16:53:41  knoaman
 * Misc. fixes.
 *
 * Revision 1.6  2001/08/24 17:12:01  knoaman
 * Add support for anySimpleType.
 * Remove parameter 'baseValidator' from the virtual method 'newInstance'.
 *
 * Revision 1.5  2001/08/21 20:05:41  peiyongz
 * put back changes introduced in 1.3
 *
 * Revision 1.3  2001/08/16 14:41:38  knoaman
 * implementation of virtual methods.
 *
 * Revision 1.2  2001/07/24 21:23:40  tng
 * Schema: Use DatatypeValidator for ID/IDREF/ENTITY/ENTITIES/NOTATION.
 *
 * Revision 1.1  2001/07/13 14:10:40  peiyongz
 * UnionDTV
 *
 */

#if !defined(UNION_DATATYPEVALIDATOR_HPP)
#define UNION_DATATYPEVALIDATOR_HPP

#include <xercesc/validators/datatype/DatatypeValidator.hpp>

XERCES_CPP_NAMESPACE_BEGIN

class VALIDATORS_EXPORT UnionDatatypeValidator : public DatatypeValidator
{
public:

    // -----------------------------------------------------------------------
    //  Public ctor/dtor
    // -----------------------------------------------------------------------
	/** @name Constructors and Destructor. */
    //@{

    UnionDatatypeValidator
    (
        MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
    );

    //
    // constructor for native Union datatype validator
    // <simpleType name="nativeUnion">
    //      <union   memberTypes="member1 member2 ...">
    // </simpleType>
    //
    UnionDatatypeValidator
    (
        RefVectorOf<DatatypeValidator>* const memberTypeValidators
        , const int finalSet
        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
    );

    //
    // constructor for derived Union datatype validator
    // <simpleType name="derivedUnion">
    //      <restriction base="nativeUnion">
    //          <pattern     value="patter_value"/>
    //          <enumeartion value="enum_value"/>
    //      </restriction>
    // </simpleType>
    //
    UnionDatatypeValidator
    (
        DatatypeValidator* const baseValidator
        , RefHashTableOf<KVStringPair>* const facets
        , RefArrayVectorOf<XMLCh>* const enums
        , const int finalSet
        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
    );

    virtual ~UnionDatatypeValidator();

	//@}

	virtual const RefArrayVectorOf<XMLCh>* getEnumString() const;

    // -----------------------------------------------------------------------
    // Getter methods
    // -----------------------------------------------------------------------
    /** @name Getter Functions */
    //@{
    /**
      * Returns whether the type is atomic or not
      */
    virtual bool isAtomic() const;

    //@}

    // -----------------------------------------------------------------------
    // Validation methods
    // -----------------------------------------------------------------------
    /** @name Validation Function */
    //@{

    /**
     * validate that a string matches the boolean datatype
     * @param content A string containing the content to be validated
     *
     * @exception throws InvalidDatatypeException if the content is
     * is not valid.
     */

	void validate(const XMLCh* const content);

    /**
      * Checks whether a given type can be used as a substitute
      *
      * @param  toCheck    A datatype validator of the type to be used as a
      *                    substitute
      *
      * To be redefined in UnionDatatypeValidator
      */

    virtual bool isSubstitutableBy(const DatatypeValidator* const toCheck);

    //@}

    // -----------------------------------------------------------------------
    // Compare methods
    // -----------------------------------------------------------------------
    /** @name Compare Function */
    //@{

    /**
     * Compare two boolean data types
     *
     * @param content1
     * @param content2
     * @return
     */
    int compare(const XMLCh* const, const XMLCh* const);

    //@}

    /**
      * Returns an instance of the base datatype validator class
	  * Used by the DatatypeValidatorFactory.
      */
    virtual DatatypeValidator* newInstance
    (
        RefHashTableOf<KVStringPair>* const facets
        , RefArrayVectorOf<XMLCh>* const enums
        , const int finalSet
        , MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager
    );

    RefVectorOf<DatatypeValidator>* getMemberTypeValidators() const;


    /**
     * Returns the type name that was actually used to validate the last time validate was called
     * note - this does not mean that it fully validated sucessfully
     **/
    const XMLCh* getMemberTypeName() const;

    /**
     * Returns the type uri that was actually used to validate the last time validate was called
     * note - this does not mean that it fully validated sucessfully
     **/
    const XMLCh* getMemberTypeUri() const;

    /**
     * Returns true if the type that was actually used to validate the last time validate was called 
     * is anonymous
     */
    bool getMemberTypeAnonymous() const;


    /**
     * Returns the member DatatypeValidator used to validate the content the last time validate 
     * was called
     */
    const DatatypeValidator* getMemberTypeValidator() const;

    /**
     * Called inbetween uses of this validator to reset PSVI information
     */
    void reset();

private:

    void checkContent(const XMLCh* const content, bool asBase);

    void init(DatatypeValidator*            const baseValidator
            , RefHashTableOf<KVStringPair>* const facets
            , RefArrayVectorOf<XMLCh>*           const enums);

    void cleanUp();
    
    RefArrayVectorOf<XMLCh>*  getEnumeration() const;

    void                 setEnumeration(RefArrayVectorOf<XMLCh>*, bool);


    // -----------------------------------------------------------------------
    //  Private data members
    //
    //  fEnumeration
    //      we own it.
    //
    //  fMemberTypeValidators
    //      we own it.
    //
    //  fValidatedDatatype
    //      the dataTypeValidator  that was actually used to validate the last time validate was called
    //
    // -----------------------------------------------------------------------

     bool                 fEnumerationInherited;
     RefArrayVectorOf<XMLCh>*  fEnumeration;
     RefVectorOf<DatatypeValidator>*  fMemberTypeValidators;
     DatatypeValidator*               fValidatedDatatype;
};

inline DatatypeValidator* UnionDatatypeValidator::newInstance
(
      RefHashTableOf<KVStringPair>* const facets
    , RefArrayVectorOf<XMLCh>* const      enums
    , const int                           finalSet
    , MemoryManager* const                manager
)
{
    return (DatatypeValidator*) new (manager) UnionDatatypeValidator(this, facets, enums, finalSet, manager);
}

inline void UnionDatatypeValidator::validate( const XMLCh* const content)
{
    checkContent(content, false);
}

inline void UnionDatatypeValidator::cleanUp()
{
    //~RefVectorOf will delete all adopted elements
    if ( !fEnumerationInherited && fEnumeration)
        delete fEnumeration;

    if (fMemberTypeValidators)
        delete fMemberTypeValidators;
    
}

inline RefArrayVectorOf<XMLCh>* UnionDatatypeValidator:: getEnumeration() const
{
    return fEnumeration;
}

inline void UnionDatatypeValidator::setEnumeration(RefArrayVectorOf<XMLCh>* enums
                                                 , bool                inherited)
{
    if (enums)
    {
        if (  !fEnumerationInherited && fEnumeration)
            delete fEnumeration;

        fEnumeration = enums;
        fEnumerationInherited = inherited;
        setFacetsDefined(DatatypeValidator::FACET_ENUMERATION);
    }
}

//
// get the native UnionDTV's fMemberTypeValidators
//
inline
RefVectorOf<DatatypeValidator>* UnionDatatypeValidator::getMemberTypeValidators() const
{
    UnionDatatypeValidator* thisdv = (UnionDatatypeValidator*)this; // cast away constness

    while (thisdv->getBaseValidator())
        thisdv = (UnionDatatypeValidator*) thisdv->getBaseValidator();

    return thisdv->fMemberTypeValidators;
}

inline bool UnionDatatypeValidator::isAtomic() const {


    RefVectorOf<DatatypeValidator>* memberDVs = getMemberTypeValidators();

    if (!memberDVs) {
        return false;
    }

    unsigned int memberSize = memberDVs->size();

    for (unsigned int i=0; i < memberSize; i++) {
        if (!memberDVs->elementAt(i)->isAtomic()) {
            return false;
        }
    }

    return true;
}

inline bool UnionDatatypeValidator::isSubstitutableBy(const DatatypeValidator* const toCheck) {

    if (toCheck == this) {
        return true;
    }

    if (fMemberTypeValidators) {
        unsigned int memberSize = fMemberTypeValidators->size();

        for (unsigned int i=0; i < memberSize; i++) {
            if (fMemberTypeValidators->elementAt(i)->isSubstitutableBy(toCheck)) {
                return true;
            }
        }
    }
    return false;
}

inline const XMLCh* UnionDatatypeValidator::getMemberTypeName() const {
    if(fValidatedDatatype) {
        return fValidatedDatatype->getTypeLocalName();
    }
    return 0;
}

inline const XMLCh* UnionDatatypeValidator::getMemberTypeUri() const 
{
    if(fValidatedDatatype) {
        return fValidatedDatatype->getTypeUri();
    }
    return 0;
}

inline bool UnionDatatypeValidator::getMemberTypeAnonymous() const {
    if(fValidatedDatatype) {
        return fValidatedDatatype->getAnonymous();
    }
    return 0;
}

inline const DatatypeValidator* UnionDatatypeValidator::getMemberTypeValidator() const {
    return fValidatedDatatype;
}

inline void UnionDatatypeValidator::reset() {
    fValidatedDatatype = 0;
}

XERCES_CPP_NAMESPACE_END

#endif

/**
  * End of file UnionDatatypeValidator.hpp
  */
