| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.solr.search; |
| |
| import java.io.IOException; |
| import java.lang.invoke.MethodHandles; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.analysis.payloads.FloatEncoder; |
| import org.apache.lucene.analysis.payloads.IdentityEncoder; |
| import org.apache.lucene.analysis.payloads.IntegerEncoder; |
| import org.apache.lucene.analysis.payloads.PayloadEncoder; |
| import org.apache.lucene.queries.payloads.SpanPayloadCheckQuery; |
| import org.apache.lucene.search.Query; |
| import org.apache.lucene.search.spans.SpanQuery; |
| import org.apache.lucene.util.BytesRef; |
| import org.apache.solr.common.SolrException; |
| import org.apache.solr.common.params.SolrParams; |
| import org.apache.solr.request.SolrQueryRequest; |
| import org.apache.solr.schema.FieldType; |
| import org.apache.solr.util.PayloadUtils; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class PayloadCheckQParserPlugin extends QParserPlugin { |
| public static final String NAME = "payload_check"; |
| |
| private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| @Override |
| public QParser createParser(String qstr, SolrParams localParams, SolrParams params, SolrQueryRequest req) { |
| |
| return new QParser(qstr, localParams, params, req) { |
| @Override |
| public Query parse() throws SyntaxError { |
| String field = localParams.get(QueryParsing.F); |
| String value = localParams.get(QueryParsing.V); |
| String p = localParams.get("payloads"); |
| |
| if (field == null) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "'f' not specified"); |
| } |
| |
| if (value == null) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "query string missing"); |
| } |
| |
| if (p == null) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "'payloads' not specified"); |
| } |
| |
| FieldType ft = req.getCore().getLatestSchema().getFieldType(field); |
| Analyzer analyzer = ft.getQueryAnalyzer(); |
| SpanQuery query = null; |
| try { |
| query = PayloadUtils.createSpanQuery(field, value, analyzer); |
| } catch (IOException e) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, e); |
| } |
| |
| if (query == null) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "SpanQuery is null"); |
| } |
| |
| PayloadEncoder encoder = null; |
| String e = PayloadUtils.getPayloadEncoder(ft); |
| if ("float".equals(e)) { // TODO: centralize this string->PayloadEncoder logic (see DelimitedPayloadTokenFilterFactory) |
| encoder = new FloatEncoder(); |
| } else if ("integer".equals(e)) { |
| encoder = new IntegerEncoder(); |
| } else if ("identity".equals(e)) { |
| encoder = new IdentityEncoder(); |
| } |
| |
| if (encoder == null) { |
| throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, "invalid encoder: " + e + " for field: " + field); |
| } |
| |
| List<BytesRef> payloads = new ArrayList<>(); |
| String[] rawPayloads = p.split(" "); // since payloads (most likely) came in whitespace delimited, just split |
| for (String rawPayload : rawPayloads) { |
| if (rawPayload.length() > 0) |
| payloads.add(encoder.encode(rawPayload.toCharArray())); |
| } |
| |
| return new SpanPayloadCheckQuery(query, payloads); |
| } |
| }; |
| |
| |
| } |
| } |