| /* |
| * 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.handler.sql; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| import java.util.Map; |
| import java.util.Properties; |
| import java.util.Set; |
| |
| import org.apache.calcite.rel.type.RelDataType; |
| import org.apache.calcite.rel.type.RelDataTypeFactory; |
| import org.apache.calcite.rel.type.RelDataTypeImpl; |
| import org.apache.calcite.rel.type.RelDataTypeSystem; |
| import org.apache.calcite.rel.type.RelProtoDataType; |
| import org.apache.calcite.schema.Table; |
| import org.apache.calcite.schema.impl.AbstractSchema; |
| import org.apache.calcite.sql.type.SqlTypeFactoryImpl; |
| import org.apache.solr.client.solrj.SolrServerException; |
| import org.apache.solr.client.solrj.impl.CloudSolrClient; |
| import org.apache.solr.client.solrj.io.SolrClientCache; |
| import org.apache.solr.client.solrj.request.LukeRequest; |
| import org.apache.solr.client.solrj.response.LukeResponse; |
| import org.apache.solr.common.cloud.Aliases; |
| import org.apache.solr.common.cloud.ClusterState; |
| import org.apache.solr.common.cloud.ZkStateReader; |
| |
| import com.google.common.collect.ImmutableMap; |
| |
| class SolrSchema extends AbstractSchema implements Closeable { |
| final Properties properties; |
| final SolrClientCache solrClientCache; |
| private volatile boolean isClosed = false; |
| |
| SolrSchema(Properties properties, SolrClientCache solrClientCache) { |
| super(); |
| this.properties = properties; |
| this.solrClientCache = solrClientCache; |
| } |
| |
| public SolrClientCache getSolrClientCache() { |
| return solrClientCache; |
| } |
| |
| @Override |
| public void close() { |
| isClosed = true; |
| } |
| |
| public boolean isClosed() { |
| return isClosed; |
| } |
| |
| @Override |
| protected Map<String, Table> getTableMap() { |
| String zk = this.properties.getProperty("zk"); |
| CloudSolrClient cloudSolrClient = solrClientCache.getCloudSolrClient(zk); |
| ZkStateReader zkStateReader = cloudSolrClient.getZkStateReader(); |
| ClusterState clusterState = zkStateReader.getClusterState(); |
| |
| final ImmutableMap.Builder<String, Table> builder = ImmutableMap.builder(); |
| |
| Set<String> collections = clusterState.getCollectionsMap().keySet(); |
| for (String collection : collections) { |
| builder.put(collection, new SolrTable(this, collection)); |
| } |
| |
| Aliases aliases = zkStateReader.getAliases(); |
| for (String alias : aliases.getCollectionAliasListMap().keySet()) { |
| // don't create duplicate entries |
| if (!collections.contains(alias)) { |
| builder.put(alias, new SolrTable(this, alias)); |
| } |
| } |
| |
| return builder.build(); |
| } |
| |
| private Map<String, LukeResponse.FieldInfo> getFieldInfo(String collection) { |
| String zk = this.properties.getProperty("zk"); |
| CloudSolrClient cloudSolrClient = solrClientCache.getCloudSolrClient(zk); |
| try { |
| LukeRequest lukeRequest = new LukeRequest(); |
| lukeRequest.setNumTerms(0); |
| LukeResponse lukeResponse = lukeRequest.process(cloudSolrClient, collection); |
| return lukeResponse.getFieldInfo(); |
| } catch (SolrServerException | IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| RelProtoDataType getRelDataType(String collection) { |
| // Temporary type factory, just for the duration of this method. Allowable |
| // because we're creating a proto-type, not a type; before being used, the |
| // proto-type will be copied into a real type factory. |
| final RelDataTypeFactory typeFactory = new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT); |
| final RelDataTypeFactory.Builder fieldInfo = typeFactory.builder(); |
| Map<String, LukeResponse.FieldInfo> luceneFieldInfoMap = getFieldInfo(collection); |
| |
| for(Map.Entry<String, LukeResponse.FieldInfo> entry : luceneFieldInfoMap.entrySet()) { |
| LukeResponse.FieldInfo luceneFieldInfo = entry.getValue(); |
| |
| String luceneFieldType = luceneFieldInfo.getType(); |
| // SOLR-13414: Luke can return a field definition with no type in rare situations |
| if(luceneFieldType == null) { |
| continue; |
| } |
| |
| RelDataType type; |
| switch (luceneFieldType) { |
| case "string": |
| type = typeFactory.createJavaType(String.class); |
| break; |
| case "tint": |
| case "tlong": |
| case "int": |
| case "long": |
| case "pint": |
| case "plong": |
| type = typeFactory.createJavaType(Long.class); |
| break; |
| case "tfloat": |
| case "tdouble": |
| case "float": |
| case "double": |
| case "pfloat": |
| case "pdouble": |
| type = typeFactory.createJavaType(Double.class); |
| break; |
| default: |
| type = typeFactory.createJavaType(String.class); |
| } |
| |
| /* |
| EnumSet<FieldFlag> flags = luceneFieldInfo.parseFlags(luceneFieldInfo.getSchema()); |
| if(flags != null && flags.contains(FieldFlag.MULTI_VALUED)) { |
| type = typeFactory.createArrayType(type, -1); |
| } |
| */ |
| |
| fieldInfo.add(entry.getKey(), type).nullable(true); |
| } |
| fieldInfo.add("_query_",typeFactory.createJavaType(String.class)); |
| fieldInfo.add("score",typeFactory.createJavaType(Double.class)); |
| |
| return RelDataTypeImpl.proto(fieldInfo.build()); |
| } |
| } |