ru.org.linux.search.SearchViewer.java Source code

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Here is the source code for ru.org.linux.search.SearchViewer.java

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/*
 * Copyright 1998-2013 Linux.org.ru
 *    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 ru.org.linux.search;

import org.apache.solr.client.solrj.SolrQuery;
import org.apache.solr.client.solrj.SolrServer;
import org.apache.solr.client.solrj.SolrServerException;
import org.apache.solr.client.solrj.response.QueryResponse;
import ru.org.linux.user.User;

public class SearchViewer {
    public enum SearchRange {
        ALL(null, "  "), TOPICS("is_comment:false",
                " "), COMMENTS("is_comment:true", " ");

        private final String param;
        private final String title;

        SearchRange(String param, String title) {
            this.param = param;
            this.title = title;
        }

        private String getParam() {
            return param;
        }

        public String getTitle() {
            return title;
        }
    }

    public enum SearchInterval {
        MONTH("postdate:[NOW-1MONTH TO NOW]", "??"), THREE_MONTH("postdate:[NOW-3MONTH TO NOW]",
                " ??"), YEAR("postdate:[NOW-1YEAR TO NOW]", ""), THREE_YEAR(
                        "postdate:[NOW-3YEAR TO NOW]", " "), ALL(null, "? ");

        private final String range;
        private final String title;

        SearchInterval(String range, String title) {
            this.range = range;
            this.title = title;
        }

        private String getRange() {
            return range;
        }

        public String getTitle() {
            return title;
        }
    }

    public enum SearchOrder {
        RELEVANCE(" ?", "score desc"), DATE(
                " :    ?",
                "postdate desc"), DATE_OLD_TO_NEW(" :  ?  ", "postdate asc");

        private final String name;
        private final String param;

        SearchOrder(String name, String param) {
            this.name = name;
            this.param = param;
        }

        public String getName() {
            return name;
        }

        private String getParam() {
            return param;
        }
    }

    public static final int SEARCH_ROWS = 50;

    private final SearchRequest query;

    public SearchViewer(SearchRequest query) {
        this.query = query;
    }

    public QueryResponse performSearch(SolrServer search) throws SolrServerException {
        SolrQuery params = new SolrQuery();
        // set search query params
        params.set("q", query.getQ());
        params.set("rows", SEARCH_ROWS);
        params.set("start", query.getOffset());

        params.set("qt", "edismax");

        if (query.getRange().getParam() != null) {
            params.add("fq", query.getRange().getParam());
        }

        if (query.getInterval().getRange() != null) {
            params.add("fq", query.getInterval().getRange());
        }

        params.setFacetMinCount(1);
        params.setFacet(true);

        String section = query.getSection();

        if (section != null && !section.isEmpty() && !"0".equals(section)) {
            params.add("fq", "{!tag=dt}section:" + query.getSection());
            params.addFacetField("{!ex=dt}section");

            params.addFacetField("{!ex=dt}group_id");
        } else {
            params.addFacetField("section");
            params.addFacetField("group_id");
        }

        if (query.getUser() != null) {
            User user = query.getUser();

            if (query.isUsertopic()) {
                params.add("fq", "topic_user_id:" + user.getId());
            } else {
                params.add("fq", "user_id:" + user.getId());
            }
        }

        if (query.getGroup() != 0) {
            params.add("fq", "{!tag=dt}group_id:" + query.getGroup());
        }

        params.set("sort", query.getSort().getParam());

        return search.query(params);
    }
}