source: josm/trunk/src/org/glassfish/json/JsonPatchBuilderImpl.java@ 13882

Last change on this file since 13882 was 13231, checked in by Don-vip, 7 years ago

see #15682 - upgrade to JSR 374 (JSON Processing) API 1.1.2
File size: 12.1 KB
Line 
1/*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright (c) 2015-2017 Oracle and/or its affiliates. All rights reserved.
5 *
6 * The contents of this file are subject to the terms of either the GNU
7 * General Public License Version 2 only ("GPL") or the Common Development
8 * and Distribution License("CDDL") (collectively, the "License"). You
9 * may not use this file except in compliance with the License. You can
10 * obtain a copy of the License at
11 * https://oss.oracle.com/licenses/CDDL+GPL-1.1
12 * or LICENSE.txt. See the License for the specific
13 * language governing permissions and limitations under the License.
14 *
15 * When distributing the software, include this License Header Notice in each
16 * file and include the License file at LICENSE.txt.
17 *
18 * GPL Classpath Exception:
19 * Oracle designates this particular file as subject to the "Classpath"
20 * exception as provided by Oracle in the GPL Version 2 section of the License
21 * file that accompanied this code.
22 *
23 * Modifications:
24 * If applicable, add the following below the License Header, with the fields
25 * enclosed by brackets [] replaced by your own identifying information:
26 * "Portions Copyright [year] [name of copyright owner]"
27 *
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29 * If you wish your version of this file to be governed by only the CDDL or
30 * only the GPL Version 2, indicate your decision by adding "[Contributor]
31 * elects to include this software in this distribution under the [CDDL or GPL
32 * Version 2] license." If you don't indicate a single choice of license, a
33 * recipient has the option to distribute your version of this file under
34 * either the CDDL, the GPL Version 2 or to extend the choice of license to
35 * its licensees as provided above. However, if you add GPL Version 2 code
36 * and therefore, elected the GPL Version 2 license, then the option applies
37 * only if the new code is made subject to such option by the copyright
38 * holder.
39 */
40
41package org.glassfish.json;
42
43import javax.json.Json;
44import javax.json.JsonArray;
45import javax.json.JsonArrayBuilder;
46import javax.json.JsonException;
47import javax.json.JsonPatch;
48import javax.json.JsonPatch.Operation;
49import javax.json.JsonPatchBuilder;
50import javax.json.JsonStructure;
51import javax.json.JsonValue;
52
53/**
54 * A builder for constructing a JSON Patch by adding
55 * JSON Patch operations incrementally.
56 * <p>
57 * The following illustrates the approach.
58 * <pre>
59 * JsonPatchBuilder builder = Json.createPatchBuilder();
60 * JsonPatch patch = builder.add("/John/phones/office", "1234-567")
61 * .remove("/Amy/age")
62 * .build();
63 * </pre>
64 * The result is equivalent to the following JSON Patch.
65 * <pre>
66 * [
67 * {"op" = "add", "path" = "/John/phones/office", "value" = "1234-567"},
68 * {"op" = "remove", "path" = "/Amy/age"}
69 * ] </pre>
70 *
71 * @since 1.1
72 */
73public final class JsonPatchBuilderImpl implements JsonPatchBuilder {
74
75 private final JsonArrayBuilder builder;
76
77 /**
78 * Creates a JsonPatchBuilderImpl, starting with the specified
79 * JSON Patch
80 * @param patch the JSON Patch
81 */
82 public JsonPatchBuilderImpl(JsonArray patch) {
83 builder = Json.createArrayBuilder(patch);
84 }
85
86 /**
87 * Creates JsonPatchBuilderImpl with empty JSON Patch
88 */
89 public JsonPatchBuilderImpl() {
90 builder = Json.createArrayBuilder();
91 }
92
93 /**
94 * A convenience method for {@code new JsonPatchImpl(build()).apply(target)}.
95 * The target is not modified by the patch.
96 *
97 * @param <T> the target type, must be a subtype of {@link JsonStructure}
98 * @param target the target to apply the patch operations
99 * @return the transformed target after the patch
100 * @throws JsonException if the supplied JSON Patch is malformed or if
101 * it contains references to non-existing members
102 */
103 public <T extends JsonStructure> T apply(T target) {
104 return build().apply(target);
105 }
106
107 /**
108 * Adds an "add" JSON Patch operation.
109 * @param path the "path" member of the operation
110 * @param value the "value" member of the operation
111 * @return this JsonPatchBuilder
112 */
113 @Override
114 public JsonPatchBuilder add(String path, JsonValue value) {
115 builder.add(Json.createObjectBuilder()
116 .add("op", Operation.ADD.operationName())
117 .add("path", path)
118 .add("value", value)
119 );
120 return this;
121 }
122
123 /**
124 * Adds an "add" JSON Patch operation
125 * @param path the "path" member of the operation
126 * @param value the "value" member of the operation
127 * @return this JsonPatchBuilder
128 */
129 @Override
130 public JsonPatchBuilder add(String path, String value) {
131 builder.add(Json.createObjectBuilder()
132 .add("op", Operation.ADD.operationName())
133 .add("path", path)
134 .add("value", value)
135 );
136 return this;
137 }
138
139 /**
140 * Adds an "add" JSON Patch operation
141 * @param path the "path" member of the operation
142 * @param value the "value" member of the operation
143 * @return this JsonPatchBuilder
144 */
145 @Override
146 public JsonPatchBuilder add(String path, int value) {
147 builder.add(Json.createObjectBuilder()
148 .add("op", Operation.ADD.operationName())
149 .add("path", path)
150 .add("value", value)
151 );
152 return this;
153 }
154
155 /**
156 * Adds an "add" JSON Patch operation
157 * @param path the "path" member of the operation
158 * @param value the "value" member of the operation
159 * @return this JsonPatchBuilder
160 */
161 @Override
162 public JsonPatchBuilder add(String path, boolean value) {
163 builder.add(Json.createObjectBuilder()
164 .add("op", Operation.ADD.operationName())
165 .add("path", path)
166 .add("value", value)
167 );
168 return this;
169 }
170
171 /**
172 * Adds a "remove" JSON Patch operation.
173 * @param path the "path" member of the operation
174 * @return this JsonPatchBuilder
175 */
176 @Override
177 public JsonPatchBuilder remove(String path) {
178 builder.add(Json.createObjectBuilder()
179 .add("op", Operation.REMOVE.operationName())
180 .add("path", path)
181 );
182 return this;
183 }
184
185 /**
186 * Adds a "replace" JSON Patch operation.
187 * @param path the "path" member of the operation
188 * @param value the "value" member of the operation
189 * @return this JsonPatchBuilder
190 */
191 @Override
192 public JsonPatchBuilder replace(String path, JsonValue value) {
193 builder.add(Json.createObjectBuilder()
194 .add("op", Operation.REPLACE.operationName())
195 .add("path", path)
196 .add("value", value)
197 );
198 return this;
199 }
200
201 /**
202 * Adds a "replace" JSON Patch operation.
203 * @param path the "path" member of the operation
204 * @param value the "value" member of the operation
205 * @return this JsonPatchBuilder
206 */
207 @Override
208 public JsonPatchBuilder replace(String path, String value) {
209 builder.add(Json.createObjectBuilder()
210 .add("op", Operation.REPLACE.operationName())
211 .add("path", path)
212 .add("value", value)
213 );
214 return this;
215 }
216
217 /**
218 * Adds a "replace" JSON Patch operation.
219 * @param path the "path" member of the operation
220 * @param value the "value" member of the operation
221 * @return this JsonPatchBuilder
222 */
223 @Override
224 public JsonPatchBuilder replace(String path, int value) {
225 builder.add(Json.createObjectBuilder()
226 .add("op", Operation.REPLACE.operationName())
227 .add("path", path)
228 .add("value", value)
229 );
230 return this;
231 }
232
233 /**
234 * Adds a "replace" JSON Patch operation.
235 * @param path the "path" member of the operation
236 * @param value the "value" member of the operation
237 * @return this JsonPatchBuilder
238 */
239 @Override
240 public JsonPatchBuilder replace(String path, boolean value) {
241 builder.add(Json.createObjectBuilder()
242 .add("op", Operation.REPLACE.operationName())
243 .add("path", path)
244 .add("value", value)
245 );
246 return this;
247 }
248
249 /**
250 * Adds a "move" JSON Patch operation.
251 * @param path the "path" member of the operation
252 * @param from the "from" member of the operation
253 * @return this JsonPatchBuilder
254 */
255 @Override
256 public JsonPatchBuilder move(String path, String from) {
257 builder.add(Json.createObjectBuilder()
258 .add("op", Operation.MOVE.operationName())
259 .add("path", path)
260 .add("from", from)
261 );
262 return this;
263 }
264
265 /**
266 * Adds a "copy" JSON Patch operation.
267 * @param path the "path" member of the operation
268 * @param from the "from" member of the operation
269 * @return this JsonPatchBuilder
270 */
271 @Override
272 public JsonPatchBuilder copy(String path, String from) {
273 builder.add(Json.createObjectBuilder()
274 .add("op", Operation.COPY.operationName())
275 .add("path", path)
276 .add("from", from)
277 );
278 return this;
279 }
280
281 /**
282 * Adds a "test" JSON Patch operation.
283 * @param path the "path" member of the operation
284 * @param value the "value" member of the operation
285 * @return this JsonPatchBuilder
286 */
287 @Override
288 public JsonPatchBuilder test(String path, JsonValue value) {
289 builder.add(Json.createObjectBuilder()
290 .add("op", Operation.TEST.operationName())
291 .add("path", path)
292 .add("value", value)
293 );
294 return this;
295 }
296
297 /**
298 * Adds a "test" JSON Patch operation.
299 * @param path the "path" member of the operation
300 * @param value the "value" member of the operation
301 * @return this JsonPatchBuilder
302 */
303 @Override
304 public JsonPatchBuilder test(String path, String value) {
305 builder.add(Json.createObjectBuilder()
306 .add("op", Operation.TEST.operationName())
307 .add("path", path)
308 .add("value", value)
309 );
310 return this;
311 }
312
313 /**
314 * Adds a "test" JSON Patch operation.
315 * @param path the "path" member of the operation
316 * @param value the "value" member of the operation
317 * @return this JsonPatchBuilder
318 */
319 @Override
320 public JsonPatchBuilder test(String path, int value) {
321 builder.add(Json.createObjectBuilder()
322 .add("op", Operation.TEST.operationName())
323 .add("path", path)
324 .add("value", value)
325 );
326 return this;
327 }
328
329 /**
330 * Adds a "test" JSON Patch operation.
331 * @param path the "path" member of the operation
332 * @param value the "value" member of the operation
333 * @return this JsonPatchBuilder
334 */
335 @Override
336 public JsonPatchBuilder test(String path, boolean value) {
337 builder.add(Json.createObjectBuilder()
338 .add("op", Operation.TEST.operationName())
339 .add("path", path)
340 .add("value", value)
341 );
342 return this;
343 }
344
345 /**
346 * Returns the patch operations in a JsonArray
347 * @return the patch operations in a JsonArray
348 */
349 public JsonArray buildAsJsonArray() {
350 return builder.build();
351 }
352
353 /**
354 * Returns the patch operation in a JsonPatch
355 * @return the patch operation in a JsonPatch
356 */
357 @Override
358 public JsonPatch build() {
359 return new JsonPatchImpl(buildAsJsonArray());
360 }
361}
362
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