| /** |
| * 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.atlas.typesystem.persistence; |
| |
| import org.apache.atlas.AtlasException; |
| import org.apache.atlas.typesystem.IStruct; |
| import org.apache.atlas.typesystem.types.DownCastFieldMapping; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class DownCastStructInstance implements IStruct { |
| |
| public final String typeName; |
| public final DownCastFieldMapping fieldMapping; |
| public final IStruct backingInstance; |
| |
| public DownCastStructInstance(String typeName, DownCastFieldMapping fieldMapping, IStruct backingInstance) { |
| this.typeName = typeName; |
| this.fieldMapping = fieldMapping; |
| this.backingInstance = backingInstance; |
| } |
| |
| @Override |
| public String getTypeName() { |
| return typeName; |
| } |
| |
| @Override |
| public Object get(String attrName) throws AtlasException { |
| return fieldMapping.get(this, attrName); |
| } |
| |
| @Override |
| public void set(String attrName, Object val) throws AtlasException { |
| fieldMapping.set(this, attrName, val); |
| } |
| |
| @Override |
| public void setNull(String attrName) throws AtlasException { |
| throw new UnsupportedOperationException("unset on attributes are not allowed"); |
| } |
| |
| /* |
| * Use only for json serialization |
| * @nonpublic |
| */ |
| @Override |
| public Map<String, Object> getValuesMap() throws AtlasException { |
| |
| Map<String, Object> m = new HashMap<>(); |
| for (String attr : fieldMapping.fieldNameMap.keySet()) { |
| m.put(attr, get(attr)); |
| } |
| return m; |
| } |
| |
| @Override |
| public String toShortString() { |
| return toString(); |
| } |
| } |
| |
| |