moved winix directories to winixdsubdirectory
git-svn-id: svn://ttmath.org/publicrep/winix/trunk@1028 e52654a7-88a9-db11-a3e9-0013d4bc506e
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winixd/templates/patterncacher.cpp
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253
winixd/templates/patterncacher.cpp
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/*
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* This file is a part of Winix
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2008-2015, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "patterncacher.h"
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#include "core/log.h"
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namespace Winix
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{
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PatternCacher::PatternCacher()
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{
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when_delete_patterns = 13;
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how_many_delete = 3;
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ezc_fun = 0;
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ezc_blocks = 0;
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ezc_obj = 0;
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}
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void PatternCacher::SetEzcFunctions(TemplatesFunctions::EzcFun * fun)
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{
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ezc_fun = fun;
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}
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void PatternCacher::SetEzcBlocks(Ezc::Blocks * blocks)
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{
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ezc_blocks = blocks;
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}
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void PatternCacher::SetEzcObjects(Ezc::Objects<HtmlTextStream> * obj)
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{
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ezc_obj = obj;
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}
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void PatternCacher::SetEzcCommentary(const std::wstring & start, const std::wstring & end)
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{
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pattern_parser.SetCommentary(start, end);
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}
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void PatternCacher::SetWhenDelete(size_t when_delete, size_t how_many_del)
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{
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when_delete_patterns = when_delete;
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how_many_delete = how_many_del;
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}
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void PatternCacher::DeleteOldPatterns()
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{
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if( pattern_tab.size() < when_delete_patterns )
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return;
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PatternTab::iterator i;
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PatternErase pe;
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size_t erase_index;
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erase_tab.resize(pattern_tab.size());
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for( i=pattern_tab.begin(), erase_index=0 ; i!=pattern_tab.end() ; ++i, ++erase_index)
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{
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pe.used = i->second.used;
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pe.iter = i;
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erase_tab[erase_index] = pe;
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}
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// sorting through 'used'
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std::sort(erase_tab.begin(), erase_tab.end());
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for(erase_index = 0 ; erase_index<how_many_delete && erase_index<erase_tab.size() ; ++erase_index)
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{
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log << log2 << "PC: deleting ezc pattern from the cache, id: "
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<< erase_tab[erase_index].iter->second.item_id
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<< ", item used: " << erase_tab[erase_index].used << " time(s)"
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<< logend;
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pattern_tab.erase(erase_tab[erase_index].iter);
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}
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}
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void PatternCacher::CreatePattern(const Item & item, Ezc::Pattern & pattern)
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{
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/*
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* we do not set pattern_parser.SetBlocks()
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* blocks cannot be created in patterns generated from virtual FS
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* but we can call other blocks (from normal templates)
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*
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* pattern_parser.SetCommentary() is set beforehand
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*/
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pattern_parser.AllowInclude(false);
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pattern_parser.DeleteWhiteTextItems(false);
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pattern_parser.ParseString(item.content, pattern);
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RebuildCache(pattern);
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}
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Ezc::Pattern * PatternCacher::AddPattern(const Item & item)
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{
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// don't call DeleteOldPatterns() here
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// because you can delete a pattern which is in use
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// ezc functions such as: item_run, insert_page etc
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// are using GetPattern() method which can call this method
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PatternUsed pu;
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CreatePattern(item, pu.pattern);
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pu.used = 1;
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pu.item_id = item.id;
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std::pair<PatternTab::iterator, bool> res = pattern_tab.insert( std::make_pair(item.id, pu) );
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log << log2 << "PC: added ezc pattern, item_id: " << item.id << ", url: " << item.url << logend;
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return &(res.first->second.pattern);
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}
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Ezc::Pattern * PatternCacher::GetPattern(const Item & item)
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{
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PatternTab::iterator i;
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i = pattern_tab.find(item.id);
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if( i == pattern_tab.end() )
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return AddPattern(item);
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else
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{
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log << log2 << "PC: taking pattern from the cache, id: " << item.id << ", url: " << item.url << logend;
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++(i->second.used);
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return &(i->second.pattern);
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}
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}
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void PatternCacher::UpdatePattern(const Item & item)
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{
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PatternTab::iterator i;
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i = pattern_tab.find(item.id);
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if( i == pattern_tab.end() )
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return;
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++(i->second.used);
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CreatePattern(item, i->second.pattern);
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log << log2 << "PC: updated pattern, id: " << item.id << ", url: " << item.url << logend;
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}
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void PatternCacher::DeletePattern(const Item & item)
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{
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PatternTab::iterator i;
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i = pattern_tab.find(item.id);
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if( i == pattern_tab.end() )
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return;
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log << log2 << "PC: deleted pattern, id: " << item.id << ", url: " << item.url << logend;
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pattern_tab.erase(i);
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}
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size_t PatternCacher::Size()
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{
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return pattern_tab.size();
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}
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void PatternCacher::RebuildCache(Ezc::Pattern & pattern)
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{
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pattern.ClearCache();
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if( ezc_obj )
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pattern.CacheObjects(*ezc_obj);
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if( ezc_fun )
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pattern.CacheFunctions(*ezc_fun);
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if( ezc_blocks )
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pattern.CacheBlocks(*ezc_blocks);
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}
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void PatternCacher::RebuildCache()
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{
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PatternTab::iterator i = pattern_tab.begin();
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for( ; i != pattern_tab.end() ; ++i)
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RebuildCache(i->second.pattern);
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}
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void PatternCacher::ClearCache()
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{
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PatternTab::iterator i = pattern_tab.begin();
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for( ; i != pattern_tab.end() ; ++i)
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i->second.pattern.ClearCache();
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}
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} // namespace Winix
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