| /* |
| * 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.skywalking.oap.server.core.storage.model; |
| |
| import lombok.AccessLevel; |
| import lombok.EqualsAndHashCode; |
| import lombok.Getter; |
| import lombok.RequiredArgsConstructor; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * @since 9.1.0 |
| */ |
| @Getter |
| @EqualsAndHashCode |
| public class SQLDatabaseModelExtension { |
| private final Map<String, AdditionalTable> additionalTables = new HashMap<>(5); |
| //exclude the columns from the main table |
| private final List<ModelColumn> excludeColumns = new ArrayList<>(5); |
| |
| public void appendAdditionalTable(String tableName, ModelColumn column) { |
| additionalTables.computeIfAbsent(tableName, AdditionalTable::new) |
| .appendColumn(column); |
| } |
| |
| public void appendExcludeColumns(ModelColumn column) { |
| excludeColumns.add(column); |
| } |
| |
| @Getter |
| @RequiredArgsConstructor(access = AccessLevel.PRIVATE) |
| public static class AdditionalTable { |
| private final String name; |
| private final List<ModelColumn> columns = new ArrayList<>(); |
| private boolean hasListColumn = false; |
| |
| public void appendColumn(ModelColumn column) { |
| if (hasListColumn && List.class.isAssignableFrom(column.getType())) { |
| throw new IllegalStateException("A AdditionalEntity: " + name + " only support 1 List type. Field: " + column.getColumnName() + |
| " should set to another AdditionalEntity."); |
| } else if (List.class.isAssignableFrom(column.getType())) { |
| hasListColumn = true; |
| } |
| columns.add(column); |
| } |
| } |
| } |