| /** |
| * 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.repository.graphdb.titan1.graphson; |
| |
| import java.util.ArrayList; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Configure how the GraphSON utility treats edge and vertex properties. |
| * |
| * @author Stephen Mallette (http://stephen.genoprime.com) |
| */ |
| public class AtlasElementPropertyConfig { |
| |
| /** |
| * Rules for element properties. |
| */ |
| public enum ElementPropertiesRule { |
| INCLUDE, EXCLUDE |
| } |
| |
| private final List<String> vertexPropertyKeys; |
| private final List<String> edgePropertyKeys; |
| private final ElementPropertiesRule vertexPropertiesRule; |
| private final ElementPropertiesRule edgePropertiesRule; |
| private final boolean normalized; |
| |
| /** |
| * A configuration that includes all properties of vertices and edges. |
| */ |
| public static final AtlasElementPropertyConfig ALL_PROPERTIES = new AtlasElementPropertyConfig(null, null, |
| ElementPropertiesRule.INCLUDE, ElementPropertiesRule.INCLUDE, false); |
| |
| public AtlasElementPropertyConfig(final Set<String> vertexPropertyKeys, final Set<String> edgePropertyKeys, |
| final ElementPropertiesRule vertexPropertiesRule, final ElementPropertiesRule edgePropertiesRule) { |
| this(vertexPropertyKeys, edgePropertyKeys, vertexPropertiesRule, edgePropertiesRule, false); |
| } |
| |
| public AtlasElementPropertyConfig(final Set<String> vertexPropertyKeys, final Set<String> edgePropertyKeys, |
| final ElementPropertiesRule vertexPropertiesRule, final ElementPropertiesRule edgePropertiesRule, |
| final boolean normalized) { |
| this.vertexPropertiesRule = vertexPropertiesRule; |
| this.vertexPropertyKeys = sortKeys(vertexPropertyKeys, normalized); |
| this.edgePropertiesRule = edgePropertiesRule; |
| this.edgePropertyKeys = sortKeys(edgePropertyKeys, normalized); |
| this.normalized = normalized; |
| } |
| |
| /** |
| * Construct a configuration that includes the specified properties from |
| * both vertices and edges. |
| */ |
| public static AtlasElementPropertyConfig includeProperties(final Set<String> vertexPropertyKeys, |
| final Set<String> edgePropertyKeys) { |
| return new AtlasElementPropertyConfig(vertexPropertyKeys, edgePropertyKeys, ElementPropertiesRule.INCLUDE, |
| ElementPropertiesRule.INCLUDE); |
| } |
| |
| public static AtlasElementPropertyConfig includeProperties(final Set<String> vertexPropertyKeys, |
| final Set<String> edgePropertyKeys, |
| final boolean normalized) { |
| return new AtlasElementPropertyConfig(vertexPropertyKeys, edgePropertyKeys, ElementPropertiesRule.INCLUDE, |
| ElementPropertiesRule.INCLUDE, normalized); |
| } |
| |
| /** |
| * Construct a configuration that excludes the specified properties from |
| * both vertices and edges. |
| */ |
| public static AtlasElementPropertyConfig excludeProperties(final Set<String> vertexPropertyKeys, |
| final Set<String> edgePropertyKeys) { |
| return new AtlasElementPropertyConfig(vertexPropertyKeys, edgePropertyKeys, ElementPropertiesRule.EXCLUDE, |
| ElementPropertiesRule.EXCLUDE); |
| } |
| |
| public static AtlasElementPropertyConfig excludeProperties(final Set<String> vertexPropertyKeys, |
| final Set<String> edgePropertyKeys, |
| final boolean normalized) { |
| return new AtlasElementPropertyConfig(vertexPropertyKeys, edgePropertyKeys, ElementPropertiesRule.EXCLUDE, |
| ElementPropertiesRule.EXCLUDE, normalized); |
| } |
| |
| public List<String> getVertexPropertyKeys() { |
| return vertexPropertyKeys; |
| } |
| |
| public List<String> getEdgePropertyKeys() { |
| return edgePropertyKeys; |
| } |
| |
| public ElementPropertiesRule getVertexPropertiesRule() { |
| return vertexPropertiesRule; |
| } |
| |
| public ElementPropertiesRule getEdgePropertiesRule() { |
| return edgePropertiesRule; |
| } |
| |
| public boolean isNormalized() { |
| return normalized; |
| } |
| |
| private static List<String> sortKeys(final Set<String> keys, final boolean normalized) { |
| final List<String> propertyKeyList; |
| if (keys != null) { |
| if (normalized) { |
| final List<String> sorted = new ArrayList<String>(keys); |
| Collections.sort(sorted); |
| propertyKeyList = sorted; |
| } else { |
| propertyKeyList = new ArrayList<String>(keys); |
| } |
| } else { |
| propertyKeyList = null; |
| } |
| |
| return propertyKeyList; |
| } |
| } |