Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 1 | package com.fasterxml.jackson.databind.module; |
| 2 | |
| 3 | import java.util.*; |
| 4 | |
Tatu Saloranta | fce8326 | 2018-05-01 17:02:13 -0700 | [diff] [blame] | 5 | import com.fasterxml.jackson.annotation.JsonCreator; |
| 6 | import com.fasterxml.jackson.annotation.JsonProperty; |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 7 | import com.fasterxml.jackson.core.Version; |
| 8 | import com.fasterxml.jackson.databind.BaseMapTest; |
| 9 | import com.fasterxml.jackson.databind.ObjectMapper; |
| 10 | import com.fasterxml.jackson.databind.module.SimpleModule; |
| 11 | |
| 12 | public class TestAbstractTypes extends BaseMapTest |
| 13 | { |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 14 | static class MyString implements CharSequence |
| 15 | { |
| 16 | protected String value; |
| 17 | |
| 18 | public MyString(String s) { value = s; } |
| 19 | |
Tatu Saloranta | 9439a31 | 2013-03-02 13:13:09 -0800 | [diff] [blame] | 20 | @Override |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 21 | public char charAt(int index) { |
| 22 | return value.charAt(index); |
| 23 | } |
| 24 | |
Tatu Saloranta | 9439a31 | 2013-03-02 13:13:09 -0800 | [diff] [blame] | 25 | @Override |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 26 | public int length() { |
| 27 | return value.length(); |
| 28 | } |
| 29 | |
Tatu Saloranta | 9439a31 | 2013-03-02 13:13:09 -0800 | [diff] [blame] | 30 | @Override |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 31 | public CharSequence subSequence(int arg0, int arg1) { return this; } |
| 32 | } |
Tatu Saloranta | 20748cc | 2016-07-18 20:56:08 -0700 | [diff] [blame] | 33 | |
Tatu Saloranta | a589ee4 | 2017-09-18 19:36:40 -0700 | [diff] [blame] | 34 | public interface Abstract { |
| 35 | public int getValue(); |
| 36 | } |
| 37 | |
| 38 | public static class AbstractImpl implements Abstract { |
| 39 | @Override |
| 40 | public int getValue() { return 3; } |
| 41 | } |
| 42 | |
Tatu Saloranta | fce8326 | 2018-05-01 17:02:13 -0700 | [diff] [blame] | 43 | // [databind#2019]: mappings from multiple modules |
| 44 | public interface Datatype1 { |
| 45 | String getValue(); |
| 46 | } |
| 47 | |
| 48 | public interface Datatype2 { |
| 49 | String getValue(); |
| 50 | } |
| 51 | |
| 52 | static class SimpleDatatype1 implements Datatype1 { |
| 53 | |
| 54 | private final String value; |
| 55 | |
| 56 | @JsonCreator |
| 57 | public SimpleDatatype1(@JsonProperty("value") String value) { |
| 58 | this.value = value; |
| 59 | } |
| 60 | |
| 61 | @Override |
| 62 | public String getValue() { |
| 63 | return value; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | static class SimpleDatatype2 implements Datatype2 { |
| 68 | private final String value; |
| 69 | |
| 70 | @JsonCreator |
| 71 | public SimpleDatatype2(@JsonProperty("value") String value) { |
| 72 | this.value = value; |
| 73 | } |
| 74 | |
| 75 | @Override |
| 76 | public String getValue() { |
| 77 | return value; |
| 78 | } |
| 79 | } |
Tatu Saloranta | dd7258a | 2018-08-28 21:40:00 -0700 | [diff] [blame] | 80 | |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 81 | /* |
Tatu Saloranta | fce8326 | 2018-05-01 17:02:13 -0700 | [diff] [blame] | 82 | /********************************************************************** |
Tatu Saloranta | 20748cc | 2016-07-18 20:56:08 -0700 | [diff] [blame] | 83 | /* Test methods |
Tatu Saloranta | fce8326 | 2018-05-01 17:02:13 -0700 | [diff] [blame] | 84 | /********************************************************************** |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 85 | */ |
| 86 | |
| 87 | public void testCollectionDefaulting() throws Exception |
| 88 | { |
| 89 | ObjectMapper mapper = new ObjectMapper(); |
| 90 | SimpleModule mod = new SimpleModule("test", Version.unknownVersion()); |
| 91 | // let's ensure we get hierarchic mapping |
| 92 | mod.addAbstractTypeMapping(Collection.class, List.class); |
| 93 | mod.addAbstractTypeMapping(List.class, LinkedList.class); |
| 94 | mapper.registerModule(mod); |
| 95 | Collection<?> result = mapper.readValue("[]", Collection.class); |
| 96 | assertEquals(LinkedList.class, result.getClass()); |
| 97 | } |
| 98 | |
Cowtowncoder | bff35ba | 2015-02-11 15:38:14 -0800 | [diff] [blame] | 99 | public void testMapDefaultingBasic() throws Exception |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 100 | { |
| 101 | ObjectMapper mapper = new ObjectMapper(); |
| 102 | SimpleModule mod = new SimpleModule("test", Version.unknownVersion()); |
| 103 | // default is HashMap, so: |
| 104 | mod.addAbstractTypeMapping(Map.class, TreeMap.class); |
| 105 | mapper.registerModule(mod); |
| 106 | Map<?,?> result = mapper.readValue("{}", Map.class); |
| 107 | assertEquals(TreeMap.class, result.getClass()); |
| 108 | } |
Cowtowncoder | bff35ba | 2015-02-11 15:38:14 -0800 | [diff] [blame] | 109 | |
Cowtowncoder | bff35ba | 2015-02-11 15:38:14 -0800 | [diff] [blame] | 110 | // [databind#700] |
Cowtowncoder | 7fee92e | 2015-02-11 16:15:08 -0800 | [diff] [blame] | 111 | public void testDefaultingRecursive() throws Exception |
Cowtowncoder | bff35ba | 2015-02-11 15:38:14 -0800 | [diff] [blame] | 112 | { |
| 113 | ObjectMapper mapper = new ObjectMapper(); |
| 114 | SimpleModule mod = new SimpleModule("test", Version.unknownVersion()); |
Cowtowncoder | 7fee92e | 2015-02-11 16:15:08 -0800 | [diff] [blame] | 115 | |
| 116 | // defaults: LinkedHashMap, ArrayList |
Cowtowncoder | bff35ba | 2015-02-11 15:38:14 -0800 | [diff] [blame] | 117 | mod.addAbstractTypeMapping(Map.class, TreeMap.class); |
Cowtowncoder | 7fee92e | 2015-02-11 16:15:08 -0800 | [diff] [blame] | 118 | mod.addAbstractTypeMapping(List.class, LinkedList.class); |
| 119 | |
Cowtowncoder | bff35ba | 2015-02-11 15:38:14 -0800 | [diff] [blame] | 120 | mapper.registerModule(mod); |
Cowtowncoder | 7fee92e | 2015-02-11 16:15:08 -0800 | [diff] [blame] | 121 | Object result; |
| 122 | |
| 123 | result = mapper.readValue("[ {} ]", Object.class); |
| 124 | assertEquals(LinkedList.class, result.getClass()); |
Cowtowncoder | bff35ba | 2015-02-11 15:38:14 -0800 | [diff] [blame] | 125 | Object v = ((List<?>) result).get(0); |
| 126 | assertNotNull(v); |
| 127 | assertEquals(TreeMap.class, v.getClass()); |
Cowtowncoder | 7fee92e | 2015-02-11 16:15:08 -0800 | [diff] [blame] | 128 | |
| 129 | result = mapper.readValue("{ \"x\": [ 3 ] }", Object.class); |
| 130 | assertEquals(TreeMap.class, result.getClass()); |
| 131 | Map<?,?> map = (Map<?,?>) result; |
| 132 | assertEquals(1, map.size()); |
| 133 | v = map.get("x"); |
| 134 | assertNotNull(v); |
| 135 | assertEquals(LinkedList.class, v.getClass()); |
| 136 | assertEquals(1, ((List<?>) v).size()); |
Cowtowncoder | bff35ba | 2015-02-11 15:38:14 -0800 | [diff] [blame] | 137 | } |
Cowtowncoder | bff35ba | 2015-02-11 15:38:14 -0800 | [diff] [blame] | 138 | |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 139 | public void testInterfaceDefaulting() throws Exception |
| 140 | { |
| 141 | ObjectMapper mapper = new ObjectMapper(); |
| 142 | SimpleModule mod = new SimpleModule("test", Version.unknownVersion()); |
| 143 | // let's ensure we get hierarchic mapping |
| 144 | mod.addAbstractTypeMapping(CharSequence.class, MyString.class); |
| 145 | mapper.registerModule(mod); |
| 146 | Object result = mapper.readValue(quote("abc"), CharSequence.class); |
| 147 | assertEquals(MyString.class, result.getClass()); |
| 148 | assertEquals("abc", ((MyString) result).value); |
Tatu Saloranta | a589ee4 | 2017-09-18 19:36:40 -0700 | [diff] [blame] | 149 | |
| 150 | // and ditto for POJOs |
| 151 | mod = new SimpleModule(); |
| 152 | mod.addAbstractTypeMapping(Abstract.class, AbstractImpl.class); |
| 153 | mapper = new ObjectMapper() |
| 154 | .registerModule(mod); |
| 155 | Abstract a = mapper.readValue("{}", Abstract.class); |
| 156 | assertNotNull(a); |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 157 | } |
Tatu Saloranta | fce8326 | 2018-05-01 17:02:13 -0700 | [diff] [blame] | 158 | |
| 159 | // [databind#2019]: mappings from multiple modules |
Tatu Saloranta | dd7258a | 2018-08-28 21:40:00 -0700 | [diff] [blame] | 160 | public void testAbstractMappingsFromTwoModules() throws Exception |
Tatu Saloranta | fce8326 | 2018-05-01 17:02:13 -0700 | [diff] [blame] | 161 | { |
Tatu Saloranta | c7ddf69 | 2019-08-23 14:02:52 -0700 | [diff] [blame^] | 162 | ObjectMapper mapper = newJsonMapper(); |
Tatu Saloranta | fce8326 | 2018-05-01 17:02:13 -0700 | [diff] [blame] | 163 | SimpleModule module1 = new SimpleModule("module1"); |
| 164 | module1.addAbstractTypeMapping(Datatype1.class, SimpleDatatype1.class); |
| 165 | |
| 166 | SimpleModule module2 = new SimpleModule("module2"); |
| 167 | module2.addAbstractTypeMapping(Datatype2.class, SimpleDatatype2.class); |
| 168 | mapper.registerModules(module1, module2); |
| 169 | |
| 170 | final String JSON_EXAMPLE = "{\"value\": \"aaa\"}"; |
| 171 | Datatype1 value1 = mapper.readValue(JSON_EXAMPLE, Datatype1.class); |
| 172 | assertNotNull(value1); |
| 173 | |
| 174 | Datatype2 value2 = mapper.readValue(JSON_EXAMPLE, Datatype2.class); |
| 175 | assertNotNull(value2); |
| 176 | } |
Tatu Saloranta | a63c203 | 2011-12-24 00:26:53 -0800 | [diff] [blame] | 177 | } |