| /** |
| * 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.type; |
| |
| |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.apache.atlas.exception.AtlasBaseException; |
| import org.apache.atlas.model.typedef.AtlasEnumDef; |
| import org.apache.atlas.model.typedef.AtlasEnumDef.AtlasEnumElementDef; |
| |
| |
| /** |
| * class that implements behaviour of an enum-type. |
| */ |
| public class AtlasEnumType extends AtlasType { |
| private final AtlasEnumDef enumDef; |
| private final Map<String, AtlasEnumElementDef> elementDefs; |
| private final String defaultValue; |
| |
| public AtlasEnumType(AtlasEnumDef enumDef) { |
| super(enumDef); |
| |
| Map<String, AtlasEnumElementDef> e = new HashMap<>(); |
| |
| for (AtlasEnumElementDef elementDef : enumDef.getElementDefs()) { |
| e.put(elementDef.getValue().toLowerCase(), elementDef); |
| } |
| |
| String d = enumDef.getDefaultValue(); |
| |
| if (d == null) { |
| AtlasEnumElementDef defElem = enumDef.getElementDefs().size() > 0 ? enumDef.getElementDefs().get(0) : null; |
| |
| if (defElem != null) { |
| d = defElem.getValue(); |
| } |
| } |
| |
| this.enumDef = enumDef; |
| this.elementDefs = Collections.unmodifiableMap(e); |
| this.defaultValue = d; |
| } |
| |
| public AtlasEnumDef getEnumDef() { return enumDef; } |
| |
| @Override |
| public void resolveReferences(AtlasTypeRegistry typeRegistry) throws AtlasBaseException { |
| } |
| |
| @Override |
| public Object createDefaultValue() { |
| return defaultValue; |
| } |
| |
| @Override |
| public boolean isValidValue(Object obj) { |
| if (obj != null) { |
| return elementDefs.containsKey(obj.toString().toLowerCase()); |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public Object getNormalizedValue(Object obj) { |
| if (obj != null) { |
| AtlasEnumElementDef elementDef = elementDefs.get(obj.toString().toLowerCase()); |
| |
| if (elementDef != null) { |
| return elementDef.getValue(); |
| } |
| } |
| |
| return null; |
| } |
| |
| public AtlasEnumElementDef getEnumElementDef(String value) { |
| if (value != null) { |
| return elementDefs.get(value.toLowerCase()); |
| } |
| |
| return null; |
| } |
| |
| public AtlasEnumElementDef getEnumElementDef(Number ordinal) { |
| if (ordinal != null) { |
| for (AtlasEnumElementDef elementDef : elementDefs.values()) { |
| if (elementDef.getOrdinal().longValue() == ordinal.longValue()) { |
| return elementDef; |
| } |
| } |
| } |
| |
| return null; |
| } |
| } |