add new method JSON.parseObject(String, Type, JSONReader.Context),refer

#2774
alibaba · Jul 3, 2024 · e8a1910 · e8a1910
1 parent 12b40c7
commit e8a1910
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diff --git a/core/src/main/java/com/alibaba/fastjson2/JSON.java b/core/src/main/java/com/alibaba/fastjson2/JSON.java
@@ -999,6 +999,37 @@ static <T> T parseObject(String text, Type type) {
         }
     }
 
+    /**
+     * Parses the json string as {@link T}. Returns {@code null}
+     * if received {@link String} is {@code null} or empty or its content is null.
+     *
+     * @param text the specified string to be parsed
+     * @param type the specified actual type of {@link T}
+     * @param context the specified custom context
+     * @return {@link T} or {@code null}
+     * @throws JSONException If a parsing error occurs
+     * @since 2.0.52
+     */
+    @SuppressWarnings("unchecked")
+    static <T> T parseObject(String text, Type type, JSONReader.Context context) {
+        if (text == null || text.isEmpty()) {
+            return null;
+        }
+
+        final ObjectReader<T> objectReader = context.getObjectReader(type);
+
+        try (JSONReader reader = JSONReader.of(text, context)) {
+            T object = objectReader.readObject(reader, type, null, 0);
+            if (reader.resolveTasks != null) {
+                reader.handleResolveTasks(object);
+            }
+            if (reader.ch != EOI && (context.features & IgnoreCheckClose.mask) == 0) {
+                throw new JSONException(reader.info("input not end"));
+            }
+            return object;
+        }
+    }
+
     /**
      * Parses the json string as {@link T}. Returns
      * {@code null} if received {@link String} is {@code null} or empty.

diff --git a/core/src/test/java/com/alibaba/fastjson2/JSONTest.java b/core/src/test/java/com/alibaba/fastjson2/JSONTest.java
@@ -526,6 +526,15 @@ public void test_parse_object_typed_set_long() {
         }
     }
 
+    @Test
+    public void test_parse_object_with_context() {
+        JSONReader.Context context = JSONFactory.createReadContext();
+        User user = JSON.parseObject("{\"id\":1,\"name\":\"fastjson\"}",
+                (Type) User.class, context);
+        assertEquals(1, user.id);
+        assertEquals("fastjson", user.name);
+    }
+
     @Test
     public void test_array_empty() {
         List list = (List) JSON.parse("[]");
@@ -678,6 +687,7 @@ public void test_writeTo_0() {
         assertEquals("[1]",
                 new String(out.toByteArray()));
     }
+
     @Test
     public void test_writeTo_0_f() {
         ByteArrayOutputStream out = new ByteArrayOutputStream();