/*
 * 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.
 */

#if !defined(XALANSOURCETREEDOCUMENTALLOCATOR_INCLUDE_GUARD_12455133)
#define XALANSOURCETREEDOCUMENTALLOCATOR_INCLUDE_GUARD_12455133


// Base include file.  Must be first.
#include <xalanc/XSLT/XSLTDefinitions.hpp>


#include <xalanc/PlatformSupport/ReusableArenaAllocator.hpp>


#include <xalanc/XalanSourceTree/XalanSourceTreeDocument.hpp>


namespace XALAN_CPP_NAMESPACE {


class XALAN_XSLT_EXPORT XalanSourceTreeDocumentAllocator
{
public:

    typedef XalanSourceTreeDocument             data_type;

    typedef ReusableArenaAllocator<data_type>               ArenaAllocatorType;
    typedef ArenaAllocatorType::size_type                   size_type;

    enum { eDefaultAttributeAllocatorBlockSize = XalanSourceTreeDocument::eDefaultAttributeAllocatorBlockSize,
           eDefaultAttributeNSAllocatorBlockSize = XalanSourceTreeDocument::eDefaultAttributeNSAllocatorBlockSize,
           eDefaultCommentAllocatorBlockSize = XalanSourceTreeDocument::eDefaultCommentAllocatorBlockSize,
           eDefaultElementAllocatorBlockSize = XalanSourceTreeDocument::eDefaultElementAllocatorBlockSize,
           eDefaultElementNSAllocatorBlockSize = XalanSourceTreeDocument::eDefaultElementNSAllocatorBlockSize,
           eDefaultPIAllocatorBlockSize = XalanSourceTreeDocument::eDefaultPIAllocatorBlockSize,
           eDefaultTextAllocatorBlockSize = XalanSourceTreeDocument::eDefaultTextAllocatorBlockSize,
           eDefaultTextIWSAllocatorBlockSize = XalanSourceTreeDocument::eDefaultTextIWSAllocatorBlockSize,
           eDefaultNamesStringPoolBlockSize = XalanSourceTreeDocument::eDefaultNamesStringPoolBlockSize,
           eDefaultNamesStringPoolBucketCount = XalanSourceTreeDocument::eDefaultNamesStringPoolBucketCount,
           eDefaultNamesStringPoolBucketSize = XalanSourceTreeDocument::eDefaultNamesStringPoolBucketSize,
           eDefaultValuesStringPoolBlockSize = XalanSourceTreeDocument::eDefaultValuesStringPoolBlockSize,
           eDefaultValuesStringPoolBucketCount = XalanSourceTreeDocument::eDefaultValuesStringPoolBucketCount,
           eDefaultValuesStringPoolBucketSize = XalanSourceTreeDocument::eDefaultValuesStringPoolBucketSize };

    typedef XalanSourceTreeDocument::block_size_type    block_size_type;
    typedef XalanSourceTreeDocument::bucket_count_type  bucket_count_type;
    typedef XalanSourceTreeDocument::bucket_size_type   bucket_size_type;

    /**
     * Construct an instance that will allocate blocks of the specified size.
     *
     * @param theBlockSize The block size.
     */
    XalanSourceTreeDocumentAllocator(MemoryManager&  theManager, size_type  theBlockCount);

    ~XalanSourceTreeDocumentAllocator();

    /**
     * Create a XalanSourceTreeDocument object.
     * 
     * @param fPoolAllText If false, text node data that is not whitespace will not be pooled.
     * @param theNamesStringPoolBlockSize The block size for allocating strings in the name pool
     * @param theNamesStringPoolBucketCount The number of buckets for allocating strings in the name pool
     * @param theNamesStringPoolBucketSize The bucket size for allocating strings in the name pool
     * @param theValuesStringPoolBlockSize The block size for allocating strings in the values pool
     * @param theValuesStringPoolBucketCount The number of buckets for allocating strings in the values pool
     * @param theValuesStringPoolBucketSize The bucket size for allocating strings in the values pool
     *
     * @return pointer to a node
     */
    data_type*
    create(
            bool                fPoolAllText = true,
            block_size_type     theNamesStringPoolBlockSize = eDefaultNamesStringPoolBlockSize,
            bucket_count_type   theNamesStringPoolBucketCount = eDefaultNamesStringPoolBucketCount,
            bucket_size_type    theNamesStringPoolBucketSize = eDefaultNamesStringPoolBucketSize,
            block_size_type     theValuesStringPoolBlockSize = eDefaultValuesStringPoolBlockSize,
            bucket_count_type   theValuesStringPoolBucketCount = eDefaultValuesStringPoolBucketCount,
            bucket_size_type    theValuesStringPoolBucketSize = eDefaultValuesStringPoolBucketSize);

    /**
     * Create a XalanSourceTreeDocument object.
     * 
     * @param fPoolAllText If false, text node data that is not whitespace will not be pooled.
     * @param theAttributeBlockSize The block size for allocating attribute nodes
     * @param theAttributeNSBlockSize The block size for allocating attribute NS nodes
     * @param theCommentBlockSize The block size for allocating comment nodes
     * @param theElementBlockSize The block size for allocating element nodes
     * @param theElementNSBlockSize The block size for allocating element nodes
     * @param theTextBlockSize The block size for allocating text nodes,
     * @param theTextIWSBlockSize The block size for allocating text IWS nodes,
     *
     * @return pointer to a node
     */
    data_type*
    create(
            size_type   theAttributeBlockSize,
            size_type   theAttributeNSBlockSize,
            size_type   theCommentBlockSize,
            size_type   theElementBlockSize,
            size_type   theElementNSBlockSize,
            size_type   thePIBlockSize,
            size_type   theTextBlockSize,
            size_type   theTextIWSBlockSize,
            bool        fPoolAllText = true);

    /**
     * Delete a XalanSourceTreeDocument object from allocator.   
     */
    bool
    destroy(data_type*  theObject);

    /**
     * Determine if an object is owned by the allocator...
     */
    bool
    ownsObject(const data_type*     theObject)
    {
        return m_allocator.ownsObject(theObject);
    }

    /**
     * Delete all XalanSourceTreeDocument objects from allocator.    
     */ 
    void
    reset();

    /**
     * Get the number of ArenaBlocks currently allocated.
     *
     * @return The number of blocks.
     */
    size_type
    getBlockCount() const
    {
        return m_allocator.getBlockCount();
    }

    /**
     * Get size of an ArenaBlock, that is, the number
     * of objects in each block.
     *
     * @return The size of the block
     */
    size_type
    getBlockSize() const
    {
        return m_allocator.getBlockSize();
    }

private:

    // Not implemented...
    XalanSourceTreeDocumentAllocator(const XalanSourceTreeDocumentAllocator&);

    XalanSourceTreeDocumentAllocator&
    operator=(const XalanSourceTreeDocumentAllocator&);

    // Data members...
    ArenaAllocatorType  m_allocator;
};


}


#endif  // XALANSOURCETREEDOCUMENTALLOCATOR_INCLUDE_GUARD_12455133