| /** |
| * 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.metamodel.membrane.controllers; |
| |
| import java.util.Arrays; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| |
| import javax.ws.rs.core.UriBuilder; |
| |
| import org.apache.metamodel.DataContext; |
| import org.apache.metamodel.membrane.app.DataContextTraverser; |
| import org.apache.metamodel.membrane.app.TenantContext; |
| import org.apache.metamodel.membrane.app.TenantRegistry; |
| import org.apache.metamodel.membrane.controllers.model.RestLink; |
| import org.apache.metamodel.schema.Table; |
| import org.springframework.beans.factory.annotation.Autowired; |
| import org.springframework.http.MediaType; |
| import org.springframework.web.bind.annotation.PathVariable; |
| import org.springframework.web.bind.annotation.RequestMapping; |
| import org.springframework.web.bind.annotation.RequestMethod; |
| import org.springframework.web.bind.annotation.ResponseBody; |
| import org.springframework.web.bind.annotation.RestController; |
| |
| @RestController |
| @RequestMapping(value = { "/{tenant}/{dataContext}/schemas/{schema}/tables/{table}", |
| "/{tenant}/{dataContext}/s/{schema}/t/{table}" }, produces = MediaType.APPLICATION_JSON_VALUE) |
| public class TableController { |
| |
| private final TenantRegistry tenantRegistry; |
| |
| @Autowired |
| public TableController(TenantRegistry tenantRegistry) { |
| this.tenantRegistry = tenantRegistry; |
| } |
| |
| @RequestMapping(method = RequestMethod.GET) |
| @ResponseBody |
| public Map<String, Object> get(@PathVariable("tenant") String tenantId, |
| @PathVariable("dataContext") String dataSourceName, @PathVariable("schema") String schemaId, |
| @PathVariable("table") String tableId) { |
| final TenantContext tenantContext = tenantRegistry.getTenantContext(tenantId); |
| final DataContext dataContext = tenantContext.getDataSourceRegistry().openDataContext(dataSourceName); |
| |
| final DataContextTraverser traverser = new DataContextTraverser(dataContext); |
| |
| final Table table = traverser.getTable(schemaId, tableId); |
| |
| final String tenantName = tenantContext.getTenantName(); |
| final UriBuilder uriBuilder = UriBuilder.fromPath("/{tenant}/{dataContext}/s/{schema}/t/{table}/c/{column}"); |
| |
| final String tableName = table.getName(); |
| final String schemaName = table.getSchema().getName(); |
| final List<RestLink> columnsLinks = Arrays.stream(table.getColumnNames()).map(c -> new RestLink(String.valueOf( |
| c), uriBuilder.build(tenantName, dataSourceName, schemaName, tableName, c))).collect(Collectors |
| .toList()); |
| |
| final Map<String, Object> map = new LinkedHashMap<>(); |
| map.put("type", "table"); |
| map.put("name", tableName); |
| map.put("schema", schemaName); |
| map.put("datasource", dataSourceName); |
| map.put("tenant", tenantName); |
| map.put("columns", columnsLinks); |
| return map; |
| } |
| } |