T fromJson(final InputStream inputStream, final Type type) throws JsonbException {
96 |
97 | try {
98 | return mapper.readValue(inputStream, TypeFactory.defaultInstance().constructType(type));
99 | } catch (IOException e) {
100 | throw new JsonbException("Could not parse content", e);
101 | }
102 | }
103 |
104 | @Override
105 | public String toJson(final Object o) throws JsonbException {
106 |
107 | try {
108 | return mapper.writeValueAsString(o);
109 | } catch (JsonProcessingException e) {
110 | throw new JsonbException("Could not serialize object of type" + o.getClass(), e);
111 | }
112 | }
113 |
114 | @Override
115 | public String toJson(final Object o, final Type type) throws JsonbException {
116 |
117 | return toJson(o);
118 | }
119 |
120 | @Override
121 | public void toJson(final Object o, final Writer writer) throws JsonbException {
122 | try {
123 | mapper.writeValue(writer, o);
124 | } catch (JsonProcessingException e) {
125 | throw new JsonbException("Could not serialize object of type" + o.getClass(), e);
126 | } catch (IOException e) {
127 | throw new JsonbException("Could not write serialized object of type" + o.getClass(), e);
128 | }
129 | }
130 |
131 | @Override
132 | public void toJson(final Object o, final Type type, final Writer writer) throws JsonbException {
133 | toJson(o, writer);
134 | }
135 |
136 | @Override
137 | public void toJson(final Object o, final OutputStream outputStream) throws JsonbException {
138 | try {
139 | mapper.writeValue(outputStream, o);
140 | } catch (JsonProcessingException e) {
141 | throw new JsonbException("Could not serialize object of type" + o.getClass(), e);
142 | } catch (IOException e) {
143 | throw new JsonbException("Could not write serialized object of type" + o.getClass(), e);
144 | }
145 | }
146 |
147 | @Override
148 | public void toJson(final Object o, final Type type, final OutputStream outputStream) throws JsonbException {
149 | toJson(o, outputStream);
150 | }
151 |
152 | @Override
153 | public void close() throws Exception {
154 | //noop
155 | }
156 | }
157 |
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/src/main/java/io/devcon5/jsonb/Types.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright 2017, DevCon5 GmbH, Switzerland
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package io.devcon5.jsonb;
18 |
19 | import java.lang.reflect.ParameterizedType;
20 | import java.lang.reflect.Type;
21 | import java.util.Arrays;
22 | import java.util.List;
23 | import java.util.Map;
24 | import java.util.Optional;
25 | import java.util.Set;
26 |
27 | /**
28 | * Utility class with factory methods to create type handles that simplify JSON deserialization with jsonb.
29 | *
30 | * For example, to create a {@link Type} instance for List<String> invoke
31 | *
32 | * ParameterizedType listOfStrings = Types.listOf(String.class);
33 | *
34 | *
35 | *
36 | * Created on 20.03.2017.
37 | */
38 | public final class Types {
39 |
40 | private Types() {
41 |
42 | }
43 |
44 | /**
45 | * Creates a parameterized type definition for a generic list
46 | *
47 | * @param genericType
48 | * the type of the entries of the list
49 | *
50 | * @return a new instance of {@link ParameterizedType}
51 | */
52 | public static ParameterizedType listOf(Type genericType) {
53 |
54 | return new ParameterizedTypeImpl(List.class, genericType);
55 | }
56 |
57 | /**
58 | * Creates a parameterized type definition for a generic set
59 | *
60 | * @param genericType
61 | * the type of teh entries in the set
62 | *
63 | * @return a new instance of {@link ParameterizedType}
64 | */
65 | public static ParameterizedType setOf(Type genericType) {
66 |
67 | return new ParameterizedTypeImpl(Set.class, genericType);
68 | }
69 |
70 | /**
71 | * Creates a parameterrized type definition for a generic map
72 | *
73 | * @param keyType
74 | * the type of the keys of the map
75 | * @param valueType
76 | * the type of the values of the map
77 | *
78 | * @return a new instance of {@link ParameterizedType}
79 | */
80 | public static ParameterizedType mapOf(Type keyType, Type valueType) {
81 |
82 | return new ParameterizedTypeImpl(Map.class, keyType, valueType);
83 | }
84 |
85 | /**
86 | * Creates a parameterized type definition for a generic optional
87 | *
88 | * @param genericType
89 | * the type of teh entries in the set
90 | *
91 | * @return a new instance of {@link ParameterizedType}
92 | */
93 | public static ParameterizedType optionalOf(Type genericType) {
94 |
95 | return new ParameterizedTypeImpl(Optional.class, genericType);
96 | }
97 |
98 | /**
99 | * Creates a parameterized type definition for a rawtype
100 | *
101 | * @param rawType
102 | * the base type
103 | * @param typeParameters
104 | * the generic type parameters
105 | *
106 | * @return a new instance of {@link ParameterizedType}
107 | */
108 | public static ParameterizedType of(Class rawType, Type... typeParameters) {
109 |
110 | return new ParameterizedTypeImpl(rawType, typeParameters);
111 | }
112 |
113 | /**
114 | * Creates a parameterized type definition for a owned rawtype. For example Owner.Raw<String>
115 | *
116 | * @param ownerType
117 | * the type that owns the rawtype
118 | * @param rawType
119 | * the base type
120 | * @param typeParameters
121 | * the generic type parameters
122 | *
123 | * @return a new instance of {@link ParameterizedType}
124 | */
125 | public static ParameterizedType ofOwnerType(Type ownerType, Class rawType, Type... typeParameters) {
126 |
127 | return new ParameterizedTypeImpl(rawType, typeParameters, ownerType);
128 | }
129 |
130 | /**
131 | *
132 | */
133 | static class ParameterizedTypeImpl implements ParameterizedType {
134 |
135 | private final Type rawType;
136 | private final Type[] typeArgs;
137 | private final Type ownerType;
138 |
139 | ParameterizedTypeImpl(final Type rawType, final Type[] typeArgs, final Type ownerType) {
140 |
141 | this.rawType = rawType;
142 | this.ownerType = ownerType;
143 | this.typeArgs = typeArgs;
144 | }
145 |
146 | ParameterizedTypeImpl(final Type rawType, final Type... typeArgs) {
147 |
148 | this(rawType, typeArgs, null);
149 | }
150 |
151 | @Override
152 | public Type[] getActualTypeArguments() {
153 |
154 | return typeArgs;
155 | }
156 |
157 | @Override
158 | public Type getRawType() {
159 |
160 | return this.rawType;
161 | }
162 |
163 | @Override
164 | public Type getOwnerType() {
165 |
166 | return this.ownerType;
167 | }
168 |
169 | @Override
170 | public boolean equals(final Object o) {
171 |
172 | if (this == o) {
173 | return true;
174 | }
175 | if (o == null || getClass() != o.getClass()) {
176 | return false;
177 | }
178 |
179 | final ParameterizedTypeImpl that = (ParameterizedTypeImpl) o;
180 |
181 | if (rawType != null ? !rawType.equals(that.rawType) : that.rawType != null) {
182 | return false;
183 | }
184 | if (!Arrays.equals(typeArgs, that.typeArgs)) {
185 | return false;
186 | }
187 | return ownerType != null ? ownerType.equals(that.ownerType) : that.ownerType == null;
188 | }
189 |
190 | @Override
191 | public int hashCode() {
192 |
193 | int result = rawType != null ? rawType.hashCode() : 0;
194 | result = 31 * result + (typeArgs != null ? typeArgs.hashCode() : 0);
195 | result = 31 * result + (ownerType != null ? ownerType.hashCode() : 0);
196 | return result;
197 | }
198 | }
199 |
200 | }
201 |
--------------------------------------------------------------------------------
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