/*
* Copyright 2002-2006 the original author or authors.
*
* Licensed 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.
*/
package org.openuap.cms.engine.macro.impl;
import java.util.ArrayList;
import java.util.List;
import org.openuap.base.util.context.PageBuilder;
import org.openuap.cms.CmsPlugin;
import org.openuap.cms.core.filter.Filter;
import org.openuap.cms.engine.macro.CmsMacroEngine;
import org.openuap.cms.repo.manager.DynamicContentManager;
import org.openuap.cms.repo.model.ContentIndex;
import org.openuap.cms.search.SearchCommand;
import org.openuap.cms.search.SearchEngine;
import org.openuap.cms.search.SearchResults;
import org.openuap.runtime.util.ObjectLocator;
import org.springframework.util.StringUtils;
/**
* <p>
* 基于索引的宏引擎实现
* </p>
*
* <p>
* $Id: IndexedCmsMacroEngineImpl.java 4086 2012-11-26 04:25:05Z orangeforjava $
* </p>
*
* @author Joseph
* @version 1.0
*/
public class IndexedCmsMacroEngineImpl extends AbstractCmsMacroEngine implements
CmsMacroEngine {
private SearchEngine searchEngine;
/**
* 从索引中获取内容列表
*/
public List getCmsList(String nodeId, String num, String nodeGUID,
String orderBy, String where, String tableID, String ignore,
String page, String url) {
int ipage = 1;
if (page == null || page.equals("")) {
page = "1";
}
// 获得索引模式的where条件
// System.out.println("where="+where);
String newWhere = getIndexWhere(where);
// System.out.println("newWhere="+newWhere);
// 获得索引模式的orderBy条件
String newOrder = getIndexOrderBy(orderBy);
ipage = Integer.valueOf(page).intValue();
SearchCommand searchCommand = new SearchCommand("", "", nodeId,
nodeGUID, tableID, ignore, newOrder, newWhere, "", ipage, num,
url);
List<Object> result = new ArrayList<Object>();
try {
SearchResults rs = searchEngine.doSearch(searchCommand);
PageBuilder pb = rs.getPageBuilder();
//
result.add(0, pb);
result.add(1, rs.getHits());
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public List getCmsContent(String indexId) {
//
String firstNodeId = null;
String indexId_condition = "";
if (indexId != null) {
if (indexId.indexOf(",") > -1) {
// 多条内容
String[] sids = indexId.split(",");
String firstIndexId = sids[0];
ContentIndex ci = getDynamicContentManager()
.getContentIndexFromCache(new Long(firstIndexId));
if (ci == null) {
return null;
}
firstNodeId = ci.getNodeId().toString();
//
indexId_condition = "(";
for (int i = 0; i < sids.length - 1; i++) {
indexId_condition += " indexId:" + sids[i] + " OR ";
}
indexId_condition += " indexId:" + sids[sids.length - 1] + " )";
} else {
ContentIndex ci = getDynamicContentManager()
.getContentIndexFromCache(new Long(indexId));
if (ci == null) {
return null;
}
firstNodeId = ci.getNodeId().toString();
//
indexId_condition = "(indexId:" + indexId + ")";
}
}
//
SearchCommand searchCommand = new SearchCommand("", "", firstNodeId,
"", "", "", "", indexId_condition, "", 1, "-1", "");
//
try {
SearchResults rs = searchEngine.doSearch(searchCommand);
// PageBuilder pb = rs.getPageBuilder();
//
return (List) rs.getHits();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public List getCmsContent(String indexId, String orderBy) {
String firstNodeId = null;
String indexId_condition = "";
if (indexId != null) {
if (indexId.indexOf(",") > -1) {
// 多条内容
String[] sids = indexId.split(",");
String firstIndexId = sids[0];
ContentIndex ci = getDynamicContentManager()
.getContentIndexFromCache(new Long(firstIndexId));
if (ci == null) {
return null;
}
firstNodeId = ci.getNodeId().toString();
//
indexId_condition = "(";
for (int i = 0; i < sids.length - 1; i++) {
indexId_condition += " indexId:" + sids[i] + " OR ";
}
indexId_condition += " indexId:" + sids[sids.length - 1] + " )";
} else {
ContentIndex ci = getDynamicContentManager()
.getContentIndexFromCache(new Long(indexId));
if (ci == null) {
return null;
}
firstNodeId = ci.getNodeId().toString();
//
indexId_condition = "(indexId:" + indexId + ")";
}
}
//
// 获得索引模式的orderBy条件
String newOrder = getContentIndexOrderBy(orderBy);
//
SearchCommand searchCommand = new SearchCommand("", "", firstNodeId,
"", "", "", newOrder, indexId_condition, "", 1, "-1", "");
//
try {
SearchResults rs = searchEngine.doSearch(searchCommand);
// PageBuilder pb = rs.getPageBuilder();
//
return (List) rs.getHits();
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public PageBuilder getCmsListPageInfo(String nodeId, String num,
String nodeGUID, String orderBy, String where, String TableID,
String ignore, String page, String url) {
int ipage = 1;
if (page == null || page.equals("")) {
page = "1";
}
// 获得索引模式的where条件
// System.out.println("where="+where);
String newWhere = getIndexWhere(where);
// System.out.println("newWhere="+newWhere);
// 获得索引模式的orderBy条件
String newOrder = getIndexOrderBy(orderBy);
ipage = Integer.valueOf(page).intValue();
SearchCommand searchCommand = new SearchCommand("", "", nodeId,
nodeGUID, TableID, ignore, newOrder, newWhere, "", ipage, num,
url);
PageBuilder pb = null;
try {
SearchResults rs = searchEngine.doSearch(searchCommand);
if (rs != null) {
pb = rs.getPageBuilder();
}
} catch (Exception e) {
e.printStackTrace();
}
return pb;
}
public Object getCmsNode(String type, String NodeID) {
// TODO Auto-generated method stub
return null;
}
public List getCmsNodeList(String Type, String NodeID, String ignore) {
// TODO Auto-generated method stub
return null;
}
public List getCmsSearchList(String nodeID, String num, String nodeGUID,
String orderBy, String where, String TableID, String ignore,
String page, String url, String ignoreIndex, String keywords,
String fields) {
int ipage = 1;
if (page == null || page.equals("")) {
page = "1";
}
// 获得索引模式的where条件
// System.out.println("where="+where);
String newWhere = getIndexWhere(where);
// System.out.println("newWhere="+newWhere);
// 获得索引模式的orderBy条件
String newOrder = getIndexOrderBy(orderBy);
ipage = Integer.valueOf(page).intValue();
SearchCommand searchCommand = new SearchCommand(keywords, fields,
nodeID, nodeGUID, TableID, ignore, newOrder, newWhere, "",
ipage, num, url);
searchCommand.setIgnoreIndex(ignoreIndex);
List<Object> result = new ArrayList<Object>();
try {
SearchResults rs = searchEngine.doSearch(searchCommand);
PageBuilder pb = rs.getPageBuilder();
//
result.add(0, pb);
result.add(1, rs.getHits());
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
public void setSearchEngine(SearchEngine searchEngine) {
this.searchEngine = searchEngine;
}
/**
* 获得索引兼容的SQL语法 TODO 完美的实现应该是采用ANTLR等语法分析器处理
*
* @param where
* @return
*/
protected String getIndexWhere(String where) {
String newWhere = where;
if (StringUtils.hasText(where)) {
int pos = where.indexOf("where");
if (pos != -1) {
// 去掉where关键字
newWhere = where.substring(pos + 5);
}
newWhere = newWhere.replaceAll("and", "AND");
newWhere = newWhere.replaceAll("or", "OR");
newWhere = newWhere.replaceAll("not", "NOT");
// 用正则表达式替换
// 替换掉!=''为!='null'
newWhere = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\s]*)([\\S]*?)([\\s]*)!=''([\\s\\S]*?)#$1 $3!='null'$6#ig",
newWhere);
// p.
newWhere = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\S]*?)[.]([\\S]*?)([\\s]*)([\\s\\S]*?)#$1$3#ig",
newWhere);
// not like
newWhere = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\s]*)([\\S]*?)([\\s]*)not like([\\s]*)'%([^%]+)%'([\\s\\S]*?)#$1 !$3:($6)$7#ig",
newWhere);
// like
newWhere = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\s]+)like([\\s]*)'%([^%]+)%'([\\s\\S]*?)#$1:($4)$5#ig",
newWhere);
// !=''
newWhere = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\s]*)([\\S]*?)([\\s]*)!='([^']+)'([\\s\\S]*?)#$1 !$3:($5)$6#ig",
newWhere);
// =''
newWhere = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\s]*)='([^']+)'([\\s\\S]*?)#$1:($3)$4#ig",
newWhere);
// !=
newWhere = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\s]*)([\\S]*?)([\\s]*)!=([^\\s]+)([\\s\\S]*?)#$1 !$3:($5)$6#ig",
newWhere);
// =
newWhere = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\s]*)=([^\\s]+)([\\s\\S]*?)#$1:($3)$4#ig",
newWhere);
//
}
return newWhere;
}
/**
* 获得适用于索引的排序条件
*
* @param order
* @return
*/
protected String getIndexOrderBy(String order) {
String newOrder = "";
if (StringUtils.hasText(order)) {
// 需要特殊处理SCORE这个排序条件
if (order.trim().equals("SCORE")) {
newOrder = "";
} else {
// 去掉前缀
newOrder = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\S]*?)[.]([\\S]*?)([\\s]*)([\\s\\S]*?)#$1$3#ig",
newOrder);
String[] conditions = order.split(",");
for (String con : conditions) {
String[] words = con.split("\\s");
for (String w : words) {
String[] ds = w.split("\\.");
if (ds.length == 2) {
// 去掉前面的别名前缀，由于索引不需要这个前缀
newOrder += " " + ds[1];
} else {
newOrder += " " + w;
}
}
newOrder += ",";
}
if (newOrder.charAt(newOrder.length() - 1) == ',') {
newOrder = newOrder.substring(0, newOrder.length() - 1);
}
}
} else {
// 缺省按照置顶,排序，发布日期倒序排列
//newOrder = " top DESC,sort DESC,publishDate DESC";
//全文检索里去掉缺省排序
newOrder="";
}
return newOrder;
}
protected String getContentIndexOrderBy(String order) {
String newOrder = "";
if (StringUtils.hasText(order)) {
// 去掉前缀
newOrder = Filter.perl
.substitute(
"s#([\\s\\S]*?)([\\S]*?)[.]([\\S]*?)([\\s]*)([\\s\\S]*?)#$1$3#ig",
newOrder);
String[] conditions = order.split(",");
for (String con : conditions) {
String[] words = con.split("\\s");
for (String w : words) {
String[] ds = w.split("\\.");
if (ds.length == 2) {
// 去掉前面的别名前缀，由于索引不需要这个前缀
newOrder += " " + ds[1];
} else {
newOrder += " " + w;
}
}
newOrder += ",";
}
if (newOrder.charAt(newOrder.length() - 1) == ',') {
newOrder = newOrder.substring(0, newOrder.length() - 1);
}
}
return newOrder;
}
public DynamicContentManager getDynamicContentManager() {
DynamicContentManager dynamicContentManager = (DynamicContentManager) ObjectLocator
.lookup("dynamicContentManager", CmsPlugin.PLUGIN_ID);
return dynamicContentManager;
}
public static void main(String[] args) {
IndexedCmsMacroEngineImpl m = new IndexedCmsMacroEngineImpl();
String order = " co.hitsTotal DESC,p.publishDate DESC";
String newOrder = m.getIndexOrderBy(order);
System.out.println("newOrder=" + newOrder);
//
String where = " p.infoType='供应' and p.photo!=''";
String newWhere = m.getIndexWhere(where);
System.out.println("newWhere=" + newWhere);
}
public List getCmsContent(String indexId, String orderBy, boolean preview) {
//
return this.getCmsContent(indexId, orderBy);
}
}