/**************************************************************
 * 
 * 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.
 * 
 *************************************************************/



#include <xpathobject.hxx>

#include <string.h>

#include "../dom/document.hxx"
#include <nodelist.hxx>


namespace XPath
{
    static XPathObjectType lcl_GetType(xmlXPathObjectPtr const pXPathObj)
    {
        switch (pXPathObj->type)
        {
            case XPATH_UNDEFINED:
                return XPathObjectType_XPATH_UNDEFINED;
            case XPATH_NODESET:
                return XPathObjectType_XPATH_NODESET;
            case XPATH_BOOLEAN:
                return XPathObjectType_XPATH_BOOLEAN;
            case XPATH_NUMBER:
                return XPathObjectType_XPATH_NUMBER;
            case XPATH_STRING:
                return XPathObjectType_XPATH_STRING;
            case XPATH_POINT:
                return XPathObjectType_XPATH_POINT;
            case XPATH_RANGE:
                return XPathObjectType_XPATH_RANGE;
            case XPATH_LOCATIONSET:
                return XPathObjectType_XPATH_LOCATIONSET;
            case XPATH_USERS:
                return XPathObjectType_XPATH_USERS;
            case XPATH_XSLT_TREE:
                return XPathObjectType_XPATH_XSLT_TREE;
            default:
                return XPathObjectType_XPATH_UNDEFINED;
        }
    }

    CXPathObject::CXPathObject(
            ::rtl::Reference<DOM::CDocument> const& pDocument,
            ::osl::Mutex & rMutex,
            ::boost::shared_ptr<xmlXPathObject> const& pXPathObj)
        : m_pDocument(pDocument)
        , m_rMutex(rMutex)
        , m_pXPathObj(pXPathObj)
        , m_XPathObjectType(lcl_GetType(pXPathObj.get()))
    {
    }

    /**
        get object type
    */
    XPathObjectType CXPathObject::getObjectType() throw (RuntimeException)
    {
        return m_XPathObjectType;
    }

    /**
        get the nodes from a nodelist type object
    */
    Reference< XNodeList > SAL_CALL
    CXPathObject::getNodeList() throw (RuntimeException)
    {
        ::osl::MutexGuard const g(m_rMutex);

        Reference< XNodeList > const xRet(
            new CNodeList(m_pDocument, m_rMutex, m_pXPathObj));
        return xRet;
    }

     /**
        get value of a boolean object
     */
    sal_Bool SAL_CALL CXPathObject::getBoolean() throw (RuntimeException)
    {
        ::osl::MutexGuard const g(m_rMutex);

        return (sal_Bool) xmlXPathCastToBoolean(m_pXPathObj.get());
    }

    /**
        get number as byte
    */
    sal_Int8 SAL_CALL CXPathObject::getByte() throw (RuntimeException)
    {
        ::osl::MutexGuard const g(m_rMutex);

        return (sal_Int8) xmlXPathCastToNumber(m_pXPathObj.get());
    }

    /**
        get number as short
    */
    sal_Int16 SAL_CALL CXPathObject::getShort() throw (RuntimeException)
    {
        ::osl::MutexGuard const g(m_rMutex);

        return (sal_Int16) xmlXPathCastToNumber(m_pXPathObj.get());
    }

    /**
        get number as long
    */
    sal_Int32 SAL_CALL CXPathObject::getLong() throw (RuntimeException)
    {
        ::osl::MutexGuard const g(m_rMutex);

        return (sal_Int32) xmlXPathCastToNumber(m_pXPathObj.get());
    }

    /**
        get number as hyper
    */
    sal_Int64 SAL_CALL CXPathObject::getHyper() throw (RuntimeException)
    {
        ::osl::MutexGuard const g(m_rMutex);

        return (sal_Int64) xmlXPathCastToNumber(m_pXPathObj.get());
    }

    /**
        get number as float
    */
    float SAL_CALL CXPathObject::getFloat() throw (RuntimeException)
    {
        ::osl::MutexGuard const g(m_rMutex);

        return (float) xmlXPathCastToNumber(m_pXPathObj.get());
    }

    /**
        get number as double
    */
    double SAL_CALL CXPathObject::getDouble() throw (RuntimeException)
    {
        ::osl::MutexGuard const g(m_rMutex);

        return  xmlXPathCastToNumber(m_pXPathObj.get());
    }

    /**
        get string value
    */
    OUString SAL_CALL CXPathObject::getString() throw (RuntimeException)
    {
        ::osl::MutexGuard const g(m_rMutex);

        ::boost::shared_ptr<xmlChar const> str(
            xmlXPathCastToString(m_pXPathObj.get()), xmlFree);
        sal_Char const*const pS(reinterpret_cast<sal_Char const*>(str.get()));
        return OUString(pS, strlen(pS), RTL_TEXTENCODING_UTF8);
    }

}