| 1 | /* |
| 2 | * Copyright 2013 the original author or authors. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package org.springframework.data.elasticsearch.repository.query; |
| 17 | |
| 18 | |
| 19 | import org.springframework.core.convert.support.GenericConversionService; |
| 20 | import org.springframework.data.elasticsearch.core.ElasticsearchOperations; |
| 21 | import org.springframework.data.elasticsearch.core.convert.DateTimeConverters; |
| 22 | import org.springframework.data.elasticsearch.core.query.StringQuery; |
| 23 | import org.springframework.data.repository.query.ParametersParameterAccessor; |
| 24 | import org.springframework.util.Assert; |
| 25 | |
| 26 | import java.util.regex.Matcher; |
| 27 | import java.util.regex.Pattern; |
| 28 | |
| 29 | /** |
| 30 | * ElasticsearchStringQuery |
| 31 | * |
| 32 | * @author Rizwan Idrees |
| 33 | * @author Mohsin Husen |
| 34 | */ |
| 35 | public class ElasticsearchStringQuery extends AbstractElasticsearchRepositoryQuery{ |
| 36 | |
| 37 | private static final Pattern PARAMETER_PLACEHOLDER = Pattern.compile("\\?(\\d+)"); |
| 38 | private String query; |
| 39 | |
| 40 | private final GenericConversionService conversionService = new GenericConversionService(); |
| 41 | |
| 42 | { |
| 43 | if (!conversionService.canConvert(java.util.Date.class, String.class)) { |
| 44 | conversionService.addConverter(DateTimeConverters.JavaDateConverter.INSTANCE); |
| 45 | } |
| 46 | if (!conversionService.canConvert(org.joda.time.ReadableInstant.class, String.class)) { |
| 47 | conversionService.addConverter(DateTimeConverters.JodaDateTimeConverter.INSTANCE); |
| 48 | } |
| 49 | if (!conversionService.canConvert(org.joda.time.LocalDateTime.class, String.class)) { |
| 50 | conversionService.addConverter(DateTimeConverters.JodaLocalDateTimeConverter.INSTANCE); |
| 51 | } |
| 52 | |
| 53 | } |
| 54 | |
| 55 | public ElasticsearchStringQuery(ElasticsearchQueryMethod queryMethod, ElasticsearchOperations elasticsearchOperations, String query) { |
| 56 | super(queryMethod, elasticsearchOperations); |
| 57 | Assert.notNull(query, "Query cannot be empty"); |
| 58 | this.query = query; |
| 59 | } |
| 60 | |
| 61 | @Override |
| 62 | public Object execute(Object[] parameters) { |
| 63 | ParametersParameterAccessor accessor = new ParametersParameterAccessor(queryMethod.getParameters(), parameters); |
| 64 | StringQuery stringQuery = createQuery(accessor); |
| 65 | if(queryMethod.isPageQuery()){ |
| 66 | return elasticsearchOperations.queryForPage(stringQuery, queryMethod.getEntityInformation().getJavaType()); |
| 67 | } |
| 68 | return elasticsearchOperations.queryForObject(stringQuery, queryMethod.getEntityInformation().getJavaType()); |
| 69 | } |
| 70 | |
| 71 | |
| 72 | protected StringQuery createQuery(ParametersParameterAccessor parameterAccessor) { |
| 73 | String queryString = replacePlaceholders(this.query, parameterAccessor); |
| 74 | return new StringQuery(queryString); |
| 75 | } |
| 76 | |
| 77 | private String replacePlaceholders(String input, ParametersParameterAccessor accessor) { |
| 78 | Matcher matcher = PARAMETER_PLACEHOLDER.matcher(input); |
| 79 | String result = input; |
| 80 | while (matcher.find()) { |
| 81 | String group = matcher.group(); |
| 82 | int index = Integer.parseInt(matcher.group(1)); |
| 83 | result = result.replace(group, getParameterWithIndex(accessor, index)); |
| 84 | } |
| 85 | return result; |
| 86 | } |
| 87 | |
| 88 | private String getParameterWithIndex(ParametersParameterAccessor accessor, int index) { |
| 89 | Object parameter = accessor.getBindableValue(index); |
| 90 | if (parameter == null) { |
| 91 | return "null"; |
| 92 | } |
| 93 | if (conversionService.canConvert(parameter.getClass(), String.class)) { |
| 94 | return conversionService.convert(parameter, String.class); |
| 95 | } |
| 96 | return parameter.toString(); |
| 97 | } |
| 98 | } |