/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#ifndef _SCRIPTING_STORAGE_SCRIPTMETADATAIMPORTER_HXX_
#define _SCRIPTING_STORAGE_SCRIPTMETADATAIMPORTER_HXX_

#include <vector>

#include <rtl/ustring.h>
#include <rtl/ustrbuf.hxx>
#include <osl/mutex.hxx>
#include <cppuhelper/implbase1.hxx> // helper for component factory

#include <com/sun/star/uno/XComponentContext.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/xml/sax/XExtendedDocumentHandler.hpp>
#include <com/sun/star/io/XInputStream.hpp>

#include "ScriptData.hxx"

namespace scripting_impl
{
// for simplification
#define css ::com::sun::star
#define dcsssf ::drafts::com::sun::star::script::framework

typedef ::std::vector< ScriptData > InfoImpls_vec;
typedef ::std::pair< ::rtl::OUString, ::std::pair< ::rtl::OUString,
    ::rtl::OUString > > strpair_pair;

/**
 * Script Meta Data Importer
 */
class ScriptMetadataImporter : public 
    ::cppu::WeakImplHelper1< css::xml::sax::XExtendedDocumentHandler >
{
public:

    /**
     * This function will begin the parser and parse the meta data
     *
     * @param xInput The XInputStream for the parser which contains the XML
     * @param parcelURI The parcel's URI in the document or the application
     *
     * @see css::io::XInputStream
     */
    void parseMetaData( css::uno::Reference< css::io::XInputStream > 
        const & xInput, const ::rtl::OUString & parcelURI, 
        InfoImpls_vec & io_ScriptDatas )
        throw ( css::xml::sax::SAXException, css::io::IOException,
            css::uno::RuntimeException );

    /**
     * Constructor for the meta-data parser
     *
     * @param XComponentContext
     */
    explicit ScriptMetadataImporter( 
        const css::uno::Reference< css::uno::XComponentContext >&  );

    /**
     * Destructor for the parser
     */
    virtual ~ScriptMetadataImporter() SAL_THROW( () );

    // XExtendedDocumentHandler impl
    /**
     * Function to handle the start of CDATA in XML
     *
     * @see com::sun::star::xml::sax::XExtendedDocumentHandler
     */
    virtual void SAL_CALL startCDATA()
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to handle the end of CDATA in XML
     *
     * @see com::sun::star::xml::sax::XExtendedDocumentHandler
     */
    virtual void SAL_CALL endCDATA() throw ( css::uno::RuntimeException );

    /**
     * Function to handle comments in XML
     *
     * @see com::sun::star::xml::sax::XExtendedDocumentHandler
     */
    virtual void SAL_CALL comment( const ::rtl::OUString & sComment )
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to handle line breaks in XML
     *
     * @see com::sun::star::xml::sax::XExtendedDocumentHandler
     */
    virtual void SAL_CALL allowLineBreak()
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to handle unknowns in XML
     *
     * @see com::sun::star::xml::sax::XExtendedDocumentHandler
     */
    virtual void SAL_CALL unknown( const ::rtl::OUString & sString )
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to handle the start of XML document 
     *
     * @see com::sun::star::xml::sax::XExtendedDocumentHandler
     */
    // XDocumentHandler impl
    virtual void SAL_CALL startDocument()
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to handle the end of the XML document
     *
     * @see com::sun::star::xml::sax::XDocumentHandler
     */
    virtual void SAL_CALL endDocument()
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to handle the start of an element
     *
     * @see com::sun::star::xml::sax::XDocumentHandler
     */
    virtual void SAL_CALL startElement( const ::rtl::OUString& aName,
        const css::uno::Reference< css::xml::sax::XAttributeList > & xAttribs )
        throw ( css::xml::sax::SAXException,
            css::uno::RuntimeException );

    /**
     * Function to handle the end of an element
     *
     * @see com::sun::star::xml::sax::XDocumentHandler
     */
    virtual void SAL_CALL endElement( const ::rtl::OUString & aName )
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to handle characters in elements
     *
     * @see com::sun::star::xml::sax::XDocumentHandler
     */
    virtual void SAL_CALL characters( const ::rtl::OUString & aChars )
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to handle whitespace
     *
     * @see com::sun::star::xml::sax::XDocumentHandler
     */
    virtual void SAL_CALL ignorableWhitespace( const ::rtl::OUString & aWhitespaces )
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to handle XML processing instructions
     *
     * @see com::sun::star::xml::sax::XDocumentHandler
     */
    virtual void SAL_CALL processingInstruction(
        const ::rtl::OUString & aTarget, const ::rtl::OUString & aData )
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );

    /**
     * Function to set the document locator
     *
     * @see com::sun::star::xml::sax::XDocumentHandler
     */
    virtual void SAL_CALL setDocumentLocator(
        const css::uno::Reference< css::xml::sax::XLocator >& xLocator )
        throw ( css::xml::sax::SAXException, css::uno::RuntimeException );


private:

    /** Vector contains the ScriptData structs */
    InfoImpls_vec* mpv_ScriptDatas;

    /** @internal */
    osl::Mutex     m_mutex;

    /** @internal */
    css::uno::Reference< css::uno::XComponentContext >  m_xContext;

    /** Placeholder for the parcel URI */
    ::rtl::OUString ms_parcelURI;

    /** States for state machine during parsing */
    enum { PARCEL, SCRIPT, LOCALE, DISPLAYNAME, DESCRIPTION, FUNCTIONNAME, 
        LOGICALNAME, LANGUAGEDEPPROPS, LANGDEPPROPS, FILESET, FILESETPROPS, 
        FILES, FILEPROPS } m_state;

    /** Build up the struct during parsing the meta data */
    ScriptData m_ScriptData;

    /** @internal */
    ::rtl::OUString ms_localeLang;
    ::rtl::OUString ms_localeDisName;
    ::rtl::OUStringBuffer *ms_localeDesc;

    props_vec mv_filesetprops;

    ::rtl::OUString ms_filename;
    ::rtl::OUString ms_filesetname;

    props_vec mv_fileprops;

    strpairvec_map mm_files;

    InfoImpls_vec mv_ScriptDatas;

    /**
     *   Helper function to set the state
     *
     *   @param tagName
     *           The current tag being processed
     */
    void setState(const ::rtl::OUString & tagName);
}
; // class ScriptMetadataImporter

}

#endif