001/* 002 * Copyright (c) 2016-2017 Chris K Wensel <chris@wensel.net>. All Rights Reserved. 003 * 004 * Project and contact information: http://www.cascading.org/ 005 * 006 * This file is part of the Cascading project. 007 * 008 * Licensed under the Apache License, Version 2.0 (the "License"); 009 * you may not use this file except in compliance with the License. 010 * You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, software 015 * distributed under the License is distributed on an "AS IS" BASIS, 016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 017 * See the License for the specific language governing permissions and 018 * limitations under the License. 019 */ 020 021package cascading.nested.json; 022 023import java.beans.ConstructorProperties; 024import java.util.Map; 025 026import cascading.nested.core.NestedGetFunction; 027import cascading.tuple.Fields; 028import com.fasterxml.jackson.databind.JsonNode; 029import com.fasterxml.jackson.databind.node.ArrayNode; 030 031/** 032 * Class JSONGetFunction provides for the ability to convert a JSON object into multiple tuple values. 033 * 034 * @see NestedGetFunction for more details. 035 */ 036public class JSONGetFunction extends NestedGetFunction<JsonNode, ArrayNode> 037 { 038 /** 039 * Creates a new JSONGetFunction instance. 040 * 041 * @param pointerMap of Map 042 */ 043 @ConstructorProperties("pointerMap") 044 public JSONGetFunction( Map<Fields, String> pointerMap ) 045 { 046 this( asFields( pointerMap.keySet() ), asArray( pointerMap.values() ) ); 047 } 048 049 /** 050 * Creates a new JSONGetFunction instance. 051 * 052 * @param pointerMap of Map 053 * @param failOnMissingNode of boolean 054 */ 055 @ConstructorProperties({"pointerMap", "failOnMissingNode"}) 056 public JSONGetFunction( Map<Fields, String> pointerMap, boolean failOnMissingNode ) 057 { 058 this( asFields( pointerMap.keySet() ), failOnMissingNode, asArray( pointerMap.values() ) ); 059 } 060 061 /** 062 * Creates a new JSONGetFunction instance. 063 * 064 * @param fieldDeclaration of Fields 065 * @param stringPointers of String... 066 */ 067 @ConstructorProperties({"fieldDeclaration", "stringPointers"}) 068 public JSONGetFunction( Fields fieldDeclaration, String... stringPointers ) 069 { 070 this( fieldDeclaration, false, stringPointers ); 071 } 072 073 /** 074 * Creates a new JSONGetFunction instance. 075 * 076 * @param fieldDeclaration of Fields 077 * @param failOnMissingNode of boolean 078 * @param stringPointers of String... 079 */ 080 @ConstructorProperties({"fieldDeclaration", "failOnMissingNode", "stringPointers"}) 081 public JSONGetFunction( Fields fieldDeclaration, boolean failOnMissingNode, String... stringPointers ) 082 { 083 super( JSONCoercibleType.TYPE, fieldDeclaration, failOnMissingNode, stringPointers ); 084 } 085 }