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package com.juick.service.search;
import org.apache.commons.lang3.StringUtils;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
import org.springframework.util.Assert;
import javax.sql.DataSource;
import java.util.Collections;
import java.util.List;
/**
* Created by aalexeev on 11/18/16.
*/
/* Note
* Don't use any spring's component annotation (such as @Repository, @Service, @Component, etc).
* This class directly used by spring's search configuration class
*/
public class SphinxSearchServiceImpl implements SearchService {
private static final int DEFAULT_MAX_RESULT = 25;
private final NamedParameterJdbcTemplate namedParameterSearchJdbcTemplate;
private int maxResult = DEFAULT_MAX_RESULT;
public SphinxSearchServiceImpl(JdbcTemplate searchJdbcTemplate) {
Assert.notNull(searchJdbcTemplate);
this.namedParameterSearchJdbcTemplate = new NamedParameterJdbcTemplate(searchJdbcTemplate);
}
public SphinxSearchServiceImpl(DataSource searchDataSource) {
Assert.notNull(searchDataSource);
this.namedParameterSearchJdbcTemplate = new NamedParameterJdbcTemplate(searchDataSource);
}
@Override
public List<Integer> searchInAllMessages(final String searchString, final int messageIdBefore) {
if (StringUtils.isBlank(searchString))
return Collections.emptyList();
MapSqlParameterSource sqlParameterSource = new MapSqlParameterSource()
.addValue("search", searchString)
.addValue("before", messageIdBefore)
.addValue("limit", maxResult);
return namedParameterSearchJdbcTemplate.queryForList(
"SELECT id AS message_id FROM messages WHERE MATCH(:search) " +
(messageIdBefore > 0 ?
" AND id < :before " : "") +
" ORDER BY id DESC LIMIT :limit",
sqlParameterSource,
Integer.class);
}
@Override
public List<Integer> searchByStringAndUser(final String searchString, final int userId, int messageIdBefore) {
if (StringUtils.isBlank(searchString))
return Collections.emptyList();
MapSqlParameterSource sqlParameterSource = new MapSqlParameterSource()
.addValue("search", searchString)
.addValue("userId", userId)
.addValue("before", messageIdBefore)
.addValue("limit", maxResult);
return namedParameterSearchJdbcTemplate.queryForList(
"SELECT id AS message_id FROM messages WHERE user_id = :userId AND MATCH(:search) " +
(messageIdBefore > 0 ?
" AND id < :before " : "") +
" ORDER BY id DESC LIMIT :limit",
sqlParameterSource,
Integer.class);
}
@Override
public void setMaxResult(int maxResult) {
if (maxResult <= 0)
throw new IllegalArgumentException("maxResult value (" + maxResult + ") must be greater then 0");
this.maxResult = maxResult;
}
}
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