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import java.beans.PropertyDescriptor;
import java.io.IOException;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import org.apache.commons.lang3.StringUtils;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.impl.HttpSolrClient;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrInputDocument;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.github.pagehelper.Page;
/**查询(查询语句构造),更新,重建索引*/
public class SolrHelper<t> {
protected final Logger logger = LoggerFactory.getLogger(SolrHelper. class );
private HttpSolrClient server;
private StringBuffer queryString;
public SolrHelper(String reqUrl) {
server = new HttpSolrClient(reqUrl);
queryString = new StringBuffer();
}
public void andEquals(String fieldName, String val) {
queryString.append( && ).append(fieldName).append(:).append(val);
}
public void orEquals(String fieldName, String val) {
queryString.append( || ).append(fieldName).append(:).append(val);
}
public void andNotEquals(String fieldName, String val) {
queryString.append( && ).append(-).append(fieldName).append(:)
.append(val);
}
public void orNotEquals(String fieldName, String val) {
queryString.append( || ).append(-).append(fieldName).append(:)
.append(val);
}
public void andGreaterThan(String fieldName, String val) {
queryString.append( && ).append(fieldName).append(:[).append(val)
.append( TO ).append(*]);
}
public void orGreaterThan(String fieldName, String val) {
queryString.append( || ).append(fieldName).append(:[).append(val)
.append( TO ).append(*]);
}
public void andGreaterThanOrEqualTo(String fieldName, String val) {
queryString.append( && ).append(fieldName).append(:[).append(val)
.append( TO ).append(*]);
}
public void orGreaterThanOrEqualTo(String fieldName, String val) {
queryString.append( || ).append(fieldName).append(:[).append(val)
.append( TO ).append(*]);
}
public void andDateGreaterThan(String fieldName, Date val) {
queryString.append( && ).append(fieldName).append(:[)
.append(formatUTCString(val)).append( TO ).append(*]);
}
public void orDateGreaterThan(String fieldName, Date val) {
queryString.append( || ).append(fieldName).append(:[)
.append(formatUTCString(val)).append( TO ).append(*]);
}
public void andDateGreaterThanOrEqualTo(String fieldName, Date val) {
queryString.append( && ).append(fieldName).append(:[)
.append(formatUTCString(val)).append( TO ).append(*]);
}
public void orDateGreaterThanOrEqualTo(String fieldName, Date val) {
queryString.append( || ).append(fieldName).append(:[)
.append(formatUTCString(val)).append( TO ).append(*]);
}
public void andLessThan(String fieldName, String val) {
queryString.append( && ).append(fieldName).append(:[).append(*)
.append( TO ).append(val).append(]);
}
public void orLessThan(String fieldName, String val) {
queryString.append( && ).append(fieldName).append(:[).append(*)
.append( TO ).append(val).append(]);
}
public void andLessThanOrEqualTo(String fieldName, String val) {
queryString.append( && ).append(fieldName).append(:[).append(*)
.append( TO ).append(val).append(]);
}
public void orLessThanOrEqualTo(String fieldName, String val) {
queryString.append( && ).append(fieldName).append(:[).append(*)
.append( TO ).append(val).append(]);
}
public void andDateLessThan(String fieldName, Date val) {
queryString.append( && ).append(fieldName).append(:[).append(*)
.append( TO ).append(formatUTCString(val)).append(]);
}
public void orDateLessThan(String fieldName, Date val) {
queryString.append( && ).append(fieldName).append(:[).append(*)
.append( TO ).append(formatUTCString(val)).append(]);
}
public void andDateLessThanOrEqualTo(String fieldName, Date val) {
queryString.append( && ).append(fieldName).append(:[).append(*)
.append( TO ).append(formatUTCString(val)).append(]);
}
public void orDateLessThanOrEqualTo(String fieldName, Date val) {
queryString.append( && ).append(fieldName).append(:[).append(*)
.append( TO ).append(formatUTCString(val)).append(]);
}
public void andLike(String fieldName, String val) {
queryString.append( && ).append(fieldName).append(:*).append(val)
.append(*);
}
public void orLike(String fieldName, String val) {
queryString.append( || ).append(fieldName).append(:*).append(val)
.append(*);
}
public void andNotLike(String fieldName, String val) {
queryString.append( && ).append(-).append(fieldName).append(:*)
.append(val).append(*);
}
public void orNotLike(String fieldName, String val) {
queryString.append( || ).append(-).append(fieldName).append(:*)
.append(val).append(*);
}
public void andIn(String fieldName, String[] vals) {
queryString.append( && );
in(fieldName, vals);
}
private void in(String fieldName, String[] vals) {
List<string> list=Arrays.asList(vals);
in(queryString,fieldName,list);
}
public void orIn(String fieldName, List<string> vals) {
queryString.append( || );
in(queryString,fieldName,vals);
}
private static void in(StringBuffer queryString,String fieldName, List<string> vals) {
queryString.append(();
inStr(queryString, fieldName, vals);
queryString.append());
}
private static void inStr(StringBuffer queryString, String fieldName,
List<string> vals) {
int index = 0 ;
for (String val : vals) {
if ( 0 != index) {
queryString.append( || );
}
queryString.append(fieldName).append(:).append(val);
index++;
}
}
// http://stackoverflow.com/questions/634765/using-or-and-not-in-solr-query
//instead of NOT [condition] use (*:* NOT [condition])
public void andNotIn(String fieldName, String[] vals) {
List<string> list=Arrays.asList(vals);
queryString.append(&&();
queryString.append(*:* NOT );
inStr(queryString, fieldName, list);
queryString.append());
}
public void andDateBetween(String fieldName, Date startDate, Date endDate) {
queryString.append( && ).append(fieldName).append(:[)
.append(formatUTCString(startDate)).append( TO )
.append(formatUTCString(endDate)).append(]);
}
public void orDateBetween(String fieldName, Date startDate, Date endDate) {
queryString.append( || ).append(fieldName).append(:[)
.append(formatUTCString(startDate)).append( TO )
.append(formatUTCString(endDate)).append(]);
}
public void andDateNotBetween(String fieldName, Date startDate, Date endDate) {
queryString.append( && ).append(-).append(fieldName).append(:[)
.append(formatUTCString(startDate)).append( TO )
.append(formatUTCString(endDate)).append(]);
}
public void orDateNotBetween(String fieldName, Date startDate, Date endDate) {
queryString.append( && ).append(-).append(fieldName).append(:[)
.append(formatUTCString(startDate)).append( TO )
.append(formatUTCString(endDate)).append(]);
}
public void andBetween(String fieldName, String start, String end) {
queryString.append( && ).append(fieldName).append(:[).append(start)
.append( TO ).append(end).append(]);
}
public void orBetween(String fieldName, String start, String end) {
queryString.append( || ).append(fieldName).append(:[).append(start)
.append( TO ).append(end).append(]);
}
public void andNotBetween(String fieldName, String start, String end) {
queryString.append( && ).append(-).append(fieldName).append(:[)
.append(start).append( TO ).append(end).append(]);
}
public void orNotBetween(String fieldName, String start, String end) {
queryString.append( || ).append(-).append(fieldName).append(:[)
.append(start).append( TO ).append(end).append(]);
}
public void andStartSub() {
queryString.append( && ();
}
public void orStartSub() {
queryString.append( || ();
}
public void endSub() {
queryString.append());
}
private String formatUTCString(Date d) {
SimpleDateFormat sdf = new SimpleDateFormat(yyyy-MM-dd 'T' HH:mm:ss 'Z' );
String s = sdf.format(d);
return s;
}
public int execQueryTotalCount() {
SolrQuery params = handleQuery();
params.set(start, 0 );
params.set(rows, Integer.MAX_VALUE);
QueryResponse response = null ;
try {
response = server.query(params);
return response.getResults().size();
} catch (SolrServerException e) {
logger.error(, e);
} catch (IOException e) {
logger.error(, e);
}
return 0 ;
}
public List<t> query(String sort, Class<t> beanClass) {
SolrQuery params = handleQuery();
QueryResponse response = null ;
List<t> list = null ;
try {
logger.info(SolyQuery: + params.toString());
response = server.query(params);
list = (List<t>) response.getBeans(beanClass);
} catch (SolrServerException e) {
logger.error(SolrServerException, e);
} catch (IOException e) {
logger.error(IOException, e);
}
return list;
}
public Page<t> execQuery(Integer pageNo, Integer rows, String sort,
Class<t> beanClass) {
List<t> results = null ;
Page<t> page = null ;
SolrQuery params = handleQuery();
if (pageNo != null && rows != null && pageNo > 0 && rows > 0 ) {
params.set(start, (pageNo - 1 ) * rows);
params.set(rows, rows);
}
if ( null != sort && !.equals(sort)) {
params.set(sort, sort);
}
QueryResponse response = null ;
try {
logger.info(SolyQuery WithPage: + params.toString());
response = server.query(params);
results = (List<t>) response.getBeans(beanClass);
page = new Page<t>(pageNo, rows, execQueryTotalCount());
page.addAll(results);
} catch (SolrServerException e) {
logger.error(SolrServerException, e);
} catch (IOException e) {
logger.error(IOException, e);
}
return page;
}
private SolrQuery handleQuery() {
SolrQuery params = new SolrQuery();
String qryFinalStr = queryString.toString();
if (qryFinalStr.startsWith( && )) {
qryFinalStr = qryFinalStr.replaceFirst( && , );
} else if (qryFinalStr.startsWith( || )) {
qryFinalStr = qryFinalStr.replaceFirst( || , );
}
// 子查询开头的关联符号
if (- 1 != qryFinalStr.indexOf(( && )) {
qryFinalStr = qryFinalStr.replaceAll(\( \&\& , ();
}
if (- 1 != qryFinalStr.indexOf(( || )) {
qryFinalStr = qryFinalStr.replaceAll(\( \|\| , ();
}
if (StringUtils.isBlank(qryFinalStr)) {
qryFinalStr = *:*;
}
params.set(q, qryFinalStr);
return params;
}
public void execDelete(String keyName, String keyVal) {
try {
server.deleteByQuery(keyName + : + keyVal);
server.commit();
} catch (SolrServerException | IOException e) {
logger.error(, e);
}
}
public void execUpdate(T model) {
Field[] fields = model.getClass().getDeclaredFields();
SolrInputDocument solrDoc = new SolrInputDocument();
try {
for (Field f : fields) {
PropertyDescriptor pd;
pd = new PropertyDescriptor(f.getName(), model.getClass());
// 属性名
String fieldName = f.getName();
Method rM = pd.getReadMethod(); // 获得读方法
solrDoc.addField(fieldName, rM.invoke(model));
}
server.add(solrDoc);
server.commit();
} catch (Exception e) {
logger.error(, e);
}
}
public void execUpdate(SolrInputDocument solrDoc) {
try {
server.add(solrDoc);
server.commit();
} catch (SolrServerException e) {
logger.error(, e);
} catch (IOException e) {
logger.error(, e);
}
}
/**
* 重建索引和增量索引的接口
*
* @param delta
*/
public void buildIndex( boolean delta) {
SolrQuery query = new SolrQuery();
// 指定RequestHandler,默认使用/select
query.setRequestHandler(/dataimport);
String command = delta ? delta- import : full- import ;
String clean = delta ? false : true ;
String optimize = delta ? false : true ;
query.setParam(command, command).setParam(clean, clean)
.setParam(commit, true ).setParam(optimize, optimize);
try {
server.query(query);
} catch (SolrServerException e) {
logger.error(建立索引时遇到错误,delta: + delta, e);
} catch (IOException e) {
logger.error(建立索引时遇到错误,delta: + delta, e);
}
}
}</t></t></t></t></t></t></t></t></t></t></string></string></string></string></string></t>
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