com.welab.x.blacklist.util.SearchEngine.java Source code

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Here is the source code for com.welab.x.blacklist.util.SearchEngine.java

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/**
 *
 * SearchEngine.java
 *
 * Copyright 2014 WeLend, Inc. All rights reserved.
 * WELEND PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package com.welab.x.blacklist.util;

import org.apache.log4j.Logger;
import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.response.QueryResponse;
import org.apache.solr.common.SolrDocumentList;

import com.welab.x.blacklist.common.ErrorMessage;
import com.welab.x.blacklist.solrconnection.Connection;

/**
 * SolrSearchEngine sends request to solr server and get search result from solr
 * server.
 *
 * @author <a href="mailto:andy.zhang@wolaidai.com">andy.zhang</a>
 *
 */
public class SearchEngine {
    private SearchEngine() {
    }

    private static final Logger LOG = Logger.getLogger(SearchEngine.class);

    /**
     * Query result from server.
     * 
     * @param statement
     * @return SolrDocumentList
     * @throws SolrServerException
     * @throws Exception
     */
    public static SolrDocumentList search(String statement) throws SolrServerException, Exception {
        // get current environment information
        String environment = Utility.getCurrentEnvironment();
        // get the connection url for current environment
        String url = Utility.getUrlByEnvironment(environment);

        SolrQuery query = new SolrQuery();
        query.setQuery(statement);
        try {
            QueryResponse rsp = Connection.getConnection(url).query(query);
            return rsp.getResults();
        } catch (SolrServerException se) {
            LOG.error(ErrorMessage.SEARCH_SOLR_ERROR, se);
            throw se;
        }
    }
}