| /** |
| * 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 |
| * <p/> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p/> |
| * 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.catalog.definition; |
| |
| import com.tinkerpop.pipes.PipeFunction; |
| import com.tinkerpop.pipes.transform.TransformFunctionPipe; |
| import org.apache.atlas.catalog.Request; |
| import org.apache.atlas.catalog.TaxonomyResourceProvider; |
| import org.apache.atlas.catalog.VertexWrapper; |
| import org.apache.atlas.catalog.exception.InvalidPayloadException; |
| import org.apache.atlas.catalog.projection.Projection; |
| import org.apache.atlas.catalog.projection.ProjectionResult; |
| import org.apache.atlas.typesystem.types.DataTypes; |
| import org.apache.atlas.typesystem.types.utils.TypesUtil; |
| |
| import java.util.*; |
| |
| /** |
| * Taxonomy resource definition. |
| */ |
| public class TaxonomyResourceDefinition extends BaseResourceDefinition { |
| public TaxonomyResourceDefinition() { |
| registerProperty(TypesUtil.createUniqueRequiredAttrDef("name", DataTypes.STRING_TYPE)); |
| registerProperty(TypesUtil.createOptionalAttrDef("description", DataTypes.STRING_TYPE)); |
| registerProperty(TypesUtil.createOptionalAttrDef(TaxonomyResourceProvider.NAMESPACE_ATTRIBUTE_NAME, DataTypes.STRING_TYPE)); |
| |
| //todo: combine with above registrations |
| instanceProperties.add("name"); |
| instanceProperties.add("description"); |
| instanceProperties.add("creation_time"); |
| |
| collectionProperties.add("name"); |
| collectionProperties.add("description"); |
| |
| projections.put("terms", getTermsProjection()); |
| } |
| |
| @Override |
| public void validateCreatePayload(Request request) throws InvalidPayloadException { |
| super.validateCreatePayload(request); |
| if (String.valueOf(request.getQueryProperties().get("name")).contains(".")) { |
| throw new InvalidPayloadException("The \"name\" property may not contain the character '.'"); |
| } |
| } |
| |
| @Override |
| public String getTypeName() { |
| return "Taxonomy"; |
| } |
| |
| @Override |
| public String getIdPropertyName() { |
| return "name"; |
| } |
| |
| @Override |
| public String resolveHref(Map<String, Object> properties) { |
| return String.format("v1/taxonomies/%s", properties.get("name")); |
| } |
| |
| private Projection getTermsProjection() { |
| final String termsProjectionName = "terms"; |
| return new Projection(termsProjectionName, Projection.Cardinality.SINGLE, |
| new TransformFunctionPipe<>(new PipeFunction<VertexWrapper, Collection<ProjectionResult>>() { |
| private String baseHref = "v1/taxonomies/"; |
| @Override |
| public Collection<ProjectionResult> compute(VertexWrapper v) { |
| Map<String, Object> map = new HashMap<>(); |
| map.put("href", baseHref + v.getProperty("name") + "/terms"); |
| return Collections.singleton(new ProjectionResult(termsProjectionName, v, |
| Collections.singleton(map))); |
| } |
| })); |
| } |
| } |