搜索框架的搭建（适用大部分框架）

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搜索框架的搭建（适用大部分框架）
1. UML图
说明：首先这个框架是针对接口编程的，我们先定义一个serverFactory让它可以创建所有实现接口的fulltextservice的类。其中fullTextServiceImpl实现了fulltextservice接口的所有空方法，它的存在是为了让子类实现空方法并对外提供多态（工厂生产成fullTextServiceImpl的类，并调用fullTextServiceImpl子类方法）。毫无疑问地，LunceneService和solrService是最终子类封装了通用的index和query方法，他们可以通过fulltextindexParam和fullTextSearchParam获取需要的参数。
其中贴出solrService的示例代码：
importjava.io.IOException;importjava.util.ArrayList;importjava.util.HashMap;importjava.util.Iterator;importjava.util.List;importjava.util.Map;importjava.util.Set; importorg.apache.solr.client.solrj.SolrQuery;importorg.apache.solr.client.solrj.SolrServer;importorg.apache.solr.client.solrj.SolrServerException;importorg.apache.solr.client.solrj.SolrQuery.ORDER;importorg.apache.solr.client.solrj.impl.HttpSolrServer;importorg.apache.solr.client.solrj.response.FacetField;importorg.apache.solr.client.solrj.response.QueryResponse;importorg.apache.solr.common.SolrDocument;importorg.apache.solr.common.SolrDocumentList;importorg.apache.solr.common.SolrInputDocument; importcom.example.config.ConstantParams;importcom.example.retrieve.api.FullTextIndexParams;importcom.example.retrieve.api.FullTextResult;importcom.example.retrieve.api.FullTextSearchParams;importcom.myretrieve.util.StringsUtil; //SolrServer 是solr包原有的，而我们的类名是SolrServicepublicclass SolrService  extendsFullTextServiceImpl{private String serverName="";public Map<String, SolrServer>solrServerMap = new HashMap<String, SolrServer>();//-------beginservice-------------@Overridepublic int beginService(String serverName) {           SolrServer solrServer  = solrServerMap.get(serverName);           if(solrServer == null){                    solrServer = beginServer();                    solrServerMap.put(serverName,solrServer);                    return 1;           }           return -1;}@Overridepublic int beginService(String serverName,String url) {           SolrServer solrServer  = solrServerMap.get(serverName);           if(solrServer == null){                    solrServer =beginServer(url);                    solrServerMap.put(serverName,solrServer);                    return 1;           }           return -1;} private  SolrServer beginServer() {           SolrServer solrServer;           String url =StringsUtil.getConfParams(ConstantParams.SOLR_URL, ConstantParams.CONF_PATH,"");           solrServer = new HttpSolrServer(url);           return solrServer;}private SolrServer beginServer(String url){           SolrServer solrServer = newHttpSolrServer(url);           return solrServer;} @Overridepublic int beginService(String serverName,String flag, String indexPath) {           // TODO Auto-generated method stub           return super.beginService(serverName,flag, indexPath);}//-------endService-------@Overridepublic int endService(String serverName) {           // TODO Auto-generated method stub           return super.endService(serverName);} @Overridepublic void doIndex(FullTextIndexParamsfullTextIndexParams) {           long preStart =System.currentTimeMillis();           preIndexMethod();           long preEnd =System.currentTimeMillis();           System.out.println("YourpreIndex spent on "+(preEnd-preStart)+" ms.");                     List<Map<String, Object>>indexData = fullTextIndexParams.getIndexData();           try {                    if(indexData != null ||indexData.size() > 0){                             List<SolrInputDocument>docs = new ArrayList<SolrInputDocument>();                             for(Map<String,Object> map : indexData){                                       SolrInputDocumentdoc = new SolrInputDocument();                                       Set<String>keys =  map.keySet();                                       Iterator<String>iterator = keys.iterator();                                       while(iterator.hasNext()){                                                Stringkey = iterator.next();                                                Objecto = map.get(key);                                                doc.addField(key,o);                                       }                                       docs.add(doc);                             }                             this.solrServerMap.get(this.serverName).add(docs);                             this.solrServerMap.get(this.serverName).commit();                    }else{                             return;                    }           } catch (Exception e) {                    e.printStackTrace();           }           long afterStart =System.currentTimeMillis();           afterIndexMethod();           long afterEnd = System.currentTimeMillis();           System.out.println("YourafterIndex spent on "+(afterEnd-afterStart)+" ms again.");} @Overridepublic void preIndexMethod() {           // TODO Auto-generated method stub           super.preIndexMethod();} @Overridepublic void afterIndexMethod() {           // TODO Auto-generated method stub           super.afterIndexMethod();} @Overridepublic void updateIndex(FullTextIndexParamsfullTextIndexParams) {           // TODO Auto-generated method stub           super.updateIndex(fullTextIndexParams);} @Overridepublic void preUpdateIndexMethod() {           // TODO Auto-generated method stub           super.preUpdateIndexMethod();} @Overridepublic void afterUpdateIndexMethod() {           // TODO Auto-generated method stub           super.afterUpdateIndexMethod();} @Overridepublic void deleteIndex(FullTextIndexParamsfullTextIndexParams) {           // TODO Auto-generated method stub           super.deleteIndex(fullTextIndexParams);} @Overridepublic void preDeleteIndexMethod() {           // TODO Auto-generated method stub           super.preDeleteIndexMethod();} @Overridepublic void afterDeleteIndexMethod() {           // TODO Auto-generated method stub           super.afterDeleteIndexMethod();} @Overridepublic FullTextResultdoQuery(FullTextSearchParams fullTextSearchParams) {           FullTextResult result = new SolrResult();           try {                    String queryWord =fullTextSearchParams.getQueryWord();                    if(StringsUtil.isEmpty(queryWord)){                             return null;                    }                    List<String>assignmentFields = fullTextSearchParams.getAssignmentFields();                    List<Map<String,String>>assignFields = fullTextSearchParams.getAssignFields();                    String queryString ="";                    if(assignmentFields != null&& assignmentFields.size()>0){                             for(StringassignmentField : assignmentFields){                                       queryString+= assignmentField+":"+queryWord+" OR ";                             }                             int pos =queryString.lastIndexOf(" OR ");                             queryString =queryString.substring(0, pos);                    }else if(assignFields !=null && assignFields.size()>0){                             String lastValue ="";                             for(Map<String,String>assignField : assignFields){                                       Set<String>set = assignField.keySet();                                       Iterator<String>iter = set.iterator();                                       while(iter.hasNext()){                                                Stringkey = iter.next();                                                Stringvalue = assignField.get(key);                                                queryString+= key+":"+queryWord + ConstantParams.SINGLE_BLANK + value + ConstantParams.SINGLE_BLANK;                                                lastValue= value;                                       }                             }                             int pos =queryString.lastIndexOf(" "+lastValue+" ");                             queryString =queryString.substring(0, pos);                    }else{                             queryString =queryWord;                    }                                       System.out.println("queryString:"+queryString);                    SolrQuery params = newSolrQuery(queryString);                                       //设置显示域                    String[] viewFields =fullTextSearchParams.getViewFields();                    params.setFields(viewFields);                                       //高亮参数                    boolean isHighlight =fullTextSearchParams.getIsHighlight();                    String[] highlightFields =fullTextSearchParams.getHighlightFields();                    if(isHighlight &&highlightFields != null && highlightFields.length > 0){                             params.setHighlight(true);                             for(int i=0;i<highlightFields.length;i++){                                       params.addHighlightField(highlightFields[i]);                             }                                                         params.setHighlightSimplePre(fullTextSearchParams.getPreHighlight());                             params.setHighlightSimplePost(fullTextSearchParams.getPostHighlight());                             params.setHighlightFragsize(fullTextSearchParams.getViewNums());                    }                                       //排序域 String:需要排序的域名，Boolean：true 升序 false 降序                    Map<String,Boolean>sortField = fullTextSearchParams.getSortField();                    if(sortField != null){                             Set<String>set = sortField.keySet();                             Iterator<String>iter = set.iterator();                             while(iter.hasNext()){                                       Stringkey = iter.next();                                       Booleanvalue = sortField.get(key);                                       if(value){                                                params.addSort(key,ORDER.asc);                                       }else{                                                params.addSort(key,ORDER.desc);                                       }                                                                   }                    }                                       //过滤域                    Map<String,String>filterField = fullTextSearchParams.getFilterField();                    if(filterField != null&& filterField.size() > 0){                             StringBuilder str =new StringBuilder();                             Set<String>set = filterField.keySet();                             Iterator<String>iter = set.iterator();                             while(iter.hasNext()){                                       Stringkey = iter.next();                                       Stringvalue = filterField.get(key);                                       str.append(key+":"+value);                                       str.append("-beifeng-");                             }                             String[]fieldFields = str.toString().split("-beifeng-");                             params.addFilterQuery(fieldFields);                    }                                       //开始行                    params.setStart(fullTextSearchParams.getStartNums());                    //一页显示多少行                    params.setRows(fullTextSearchParams.getPageCount());                                       //统计域                    boolean isFacet =fullTextSearchParams.getIsFacet();                    String[] facetFields =fullTextSearchParams.getFacetFields();                    if(isFacet &&facetFields != null && facetFields.length>0){                             params.addFacetField(facetFields);                    }                                       QueryResponse response =this.solrServerMap.get(this.serverName).query(params);                    SolrDocumentList list =response.getResults();                    result.setNumFound(list.getNumFound());                                       SolrDocument document = newSolrDocument();                    SolrDocumentList hlList =new SolrDocumentList();                                       //高亮结果                    if(isHighlight &&highlightFields != null && highlightFields.length > 0){                             Map<String,Map<String,List<String>>>map = response.getHighlighting();                             for(inti=0;i<list.size();i++){                                       for(intj=0;j<highlightFields.length;j++){                                                document= list.get(i);                                                if(map!= null && map.get(document.getFieldValue("id")) != null&&map.get(document.getFieldValue("id")).get(highlightFields[j]) !=null){                                                         document.setField(highlightFields[j],map.get(document.getFieldValue("id")).get(highlightFields[j]).get(0));                                                }else{                                                         document.setField(highlightFields[j],document.getFieldValue(highlightFields[j]));                                                }                                       }                                       hlList.add(document);                             }                             result.setResultList(hlList);                    }else{                             result.setResultList(list);                    }                                       //统计结果                    if(isFacet &&facetFields != null && facetFields.length>0){                             List<FacetField>listField = response.getFacetFields();                             result.setFacetList(listField);                    }                              } catch (Exception e) {                    e.printStackTrace();           }           return result;} @Overridepublic int hashCode() {           // TODO Auto-generated method stub           return super.hashCode();} @Overridepublic boolean equals(Object obj) {           // TODO Auto-generated method stub           return super.equals(obj);} @Overrideprotected Object clone() throwsCloneNotSupportedException {           // TODO Auto-generated method stub           return super.clone();} @Overridepublic String toString() {           // TODO Auto-generated method stub           return super.toString();} @Overrideprotected void finalize() throws Throwable {           // TODO Auto-generated method stub           super.finalize();}//--------------------------bean--------------------------- public String getServerName() {           return serverName;}@Overridepublic void setServerName(String serverName) {           this.serverName = serverName;}}
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