/*
 * 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 "ExtensionFunctionHandler.hpp"


#include <cassert>


#include <xalanc/PlatformSupport/StringTokenizer.hpp>
#include <xalanc/PlatformSupport/DOMStringHelper.hpp>


XALAN_CPP_NAMESPACE_BEGIN


const XalanDOMChar	ExtensionFunctionHandler::s_tokenDelimiterCharacters[] =
{
		XalanUnicode::charSpace,
		XalanUnicode::charHTab,
		XalanUnicode::charLF,
		XalanUnicode::charCR,
		0
};


ExtensionFunctionHandler::ExtensionFunctionHandler(const XalanDOMString&	namespaceUri,
                                                   MemoryManagerType& theManager) :
	m_namespaceUri(namespaceUri,theManager),
	m_scriptLang(theManager),
	m_scriptSrc(theManager),
	m_scriptSrcURL(theManager),
	m_javaObject(0),
	m_functions(theManager),
	m_componentStarted(false)
{
}


ExtensionFunctionHandler::~ExtensionFunctionHandler()
{
}


ExtensionFunctionHandler::ExtensionFunctionHandler (
            MemoryManagerType&      theManager,
			const XalanDOMString&	namespaceUri,
			const XalanDOMString&	funcNames,
			const XalanDOMString&	lang,
			const XalanDOMString&	srcURL,
			const XalanDOMString&	src) :
	m_namespaceUri(namespaceUri, theManager),
	m_scriptLang(lang, theManager),
	m_scriptSrc(src, theManager),
	m_scriptSrcURL(srcURL, theManager),
	m_javaObject(0),
	m_functions(theManager),
	m_componentStarted(false)
{
	setFunctions (funcNames);
}


void
ExtensionFunctionHandler::setFunctions(const XalanDOMString&	funcNames) 
{
	if (isEmpty(funcNames)) 
	{
		return;
	}

	StringTokenizer		st(funcNames, s_tokenDelimiterCharacters, false);

    XalanDOMString theBuffer(getMemoryManager());

	while (st.hasMoreTokens() == true)
	{
        st.nextToken(theBuffer);

		m_functions.insert(theBuffer);
	}
}


void
ExtensionFunctionHandler::setScript(
			const XalanDOMString&	lang,
			const XalanDOMString&	srcURL,
			const XalanDOMString&	scriptSrc)
{
	m_scriptLang = lang;
	m_scriptSrcURL = srcURL;
	m_scriptSrc = scriptSrc;
}


bool
ExtensionFunctionHandler::isFunctionAvailable (const XalanDOMString&	function) const
{
	return m_functions.find(function) != m_functions.end();
}


XObjectPtr
ExtensionFunctionHandler::callFunction(
			const XalanDOMString&	/* funcName */,
			const ArgVectorType&	/* args */)
{
	assert(0);	// @@ TODO: Not implemented

	return XObjectPtr();
}


void
ExtensionFunctionHandler::startupComponent()
{
}


XALAN_CPP_NAMESPACE_END