001/*
002 *  Copyright 2018 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.web.frontoffice.search.metamodel.impl;
017
018import java.util.Collection;
019import java.util.Map;
020import java.util.Optional;
021import java.util.stream.Stream;
022
023import org.apache.commons.lang3.StringUtils;
024
025import org.ametys.cms.contenttype.MetadataType;
026import org.ametys.cms.search.query.DublinCoreQuery;
027import org.ametys.cms.search.query.OrQuery;
028import org.ametys.cms.search.query.Query;
029import org.ametys.cms.search.query.Query.Operator;
030import org.ametys.runtime.i18n.I18nizableText;
031import org.ametys.runtime.parameter.Enumerator;
032import org.ametys.runtime.parameter.StaticEnumerator;
033import org.ametys.web.frontoffice.search.metamodel.SearchCriterionDefinition;
034import org.ametys.web.frontoffice.search.metamodel.Searchable;
035
036/**
037 * {@link SearchCriterionDefinition} for {@link ResourceSearchable} proposing a search criterion on a DublinCore metadata of the resource.
038 */
039public class DublinCoreSearchCriterionDefinition extends AbstractDefaultSearchCriterionDefinition
040{
041    private String _metadataName;
042
043    /**
044     * Default constructor
045     * @param id The id
046     * @param pluginName The plugin name
047     * @param label The label
048     * @param type The type
049     * @param enumeratorEntries The enumerator entries
050     * @param searchable the {@link Searchable}
051     * @param metadataName The DC metadata name
052     */
053    public DublinCoreSearchCriterionDefinition(String id, String pluginName, I18nizableText label, MetadataType type, Optional<Map<String, I18nizableText>> enumeratorEntries, Optional<Searchable> searchable, String metadataName)
054    {
055        super(id, pluginName, label, type, Optional.empty(), Optional.empty(), _getEnumerator(enumeratorEntries), Optional.empty(), Optional.empty(), searchable);
056        _metadataName = metadataName;
057    }
058    
059    private static Optional<Enumerator> _getEnumerator(Optional<Map<String, I18nizableText>> entries)
060    {
061        return entries.map(map ->
062        {
063            StaticEnumerator enumerator = new StaticEnumerator();
064            for (String value : map.keySet())
065            {
066                enumerator.add(map.get(value), value);
067            }
068            return enumerator;
069            
070        });
071    }
072    
073    @SuppressWarnings("unchecked")
074    @Override
075    public Query getQuery(Object value, Operator operator, String language, Map<String, Object> contextualParameters)
076    {
077        Stream<String> lists;
078        if (value instanceof String[])
079        {
080            lists = Stream.of((String[]) value);
081        }
082        else if (value instanceof Collection< ? >)
083        {
084            lists = ((Collection<String>) value).stream();
085        }
086        else if (value instanceof String)
087        {
088            lists = Stream.of((String) value);
089        }
090        else
091        {
092            throw new IllegalArgumentException("Wrong type for object '" + value + "' : " + value.getClass().getTypeName());
093        }
094        
095        return lists // lists can contain some strings with ',' representing multiple values itself
096            .map(list -> StringUtils.split(list, ','))
097            .flatMap(Stream::of)
098//            .map(ClientUtils::escapeQueryChars)
099            .map(val -> new DublinCoreQuery(_metadataName, val))
100            .collect(OrQuery.collector());
101    }
102}