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support ContextValueFilter, for issue #484
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101 changes: 101 additions & 0 deletions
101
core/src/main/java/com/alibaba/fastjson2/filter/BeanContext.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| package com.alibaba.fastjson2.filter; | ||
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| import com.alibaba.fastjson2.codec.FieldInfo; | ||
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| import java.lang.annotation.Annotation; | ||
| import java.lang.reflect.Field; | ||
| import java.lang.reflect.Method; | ||
| import java.lang.reflect.Type; | ||
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| public class BeanContext { | ||
| private final Class beanClass; | ||
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| private final Method method; | ||
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| private final Field field; | ||
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| private final String name; | ||
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| private final String label; | ||
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| private final Class fieldClass; | ||
| private final Type fieldType; | ||
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| private final long features; | ||
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| private final String format; | ||
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| public BeanContext( | ||
| Class beanClass, | ||
| Method method, | ||
| Field field, | ||
| String name, | ||
| String label, | ||
| Class fieldClass, | ||
| Type fieldType, | ||
| long features, | ||
| String format) { | ||
| this.beanClass = beanClass; | ||
| this.method = method; | ||
| this.field = field; | ||
| this.name = name; | ||
| this.label = label; | ||
| this.fieldClass = fieldClass; | ||
| this.fieldType = fieldType; | ||
| this.features = features; | ||
| this.format = format; | ||
| } | ||
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| public Class<?> getBeanClass() { | ||
| return beanClass; | ||
| } | ||
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| public Method getMethod() { | ||
| return method; | ||
| } | ||
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| public Field getField() { | ||
| return field; | ||
| } | ||
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| public String getName() { | ||
| return name; | ||
| } | ||
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| public String getLabel() { | ||
| return label; | ||
| } | ||
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| public Class<?> getFieldClass() { | ||
| return fieldClass; | ||
| } | ||
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| public Type getFieldType() { | ||
| return fieldType; | ||
| } | ||
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| public long getFeatures() { | ||
| return features; | ||
| } | ||
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| public boolean isJsonDirect() { | ||
| return (features & FieldInfo.RAW_VALUE_MASK) != 0; | ||
| } | ||
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| public <T extends Annotation> T getAnnotation(Class<T> annotationClass) { | ||
| T annotatition = null; | ||
| if (method != null) { | ||
| annotatition = method.getAnnotation(annotationClass); | ||
| } | ||
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| if (annotatition == null && field != null) { | ||
| annotatition = field.getAnnotation(annotationClass); | ||
| } | ||
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| return annotatition; | ||
| } | ||
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| public String getFormat() { | ||
| return format; | ||
| } | ||
| } |
6 changes: 6 additions & 0 deletions
6
core/src/main/java/com/alibaba/fastjson2/filter/ContextValueFilter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| package com.alibaba.fastjson2.filter; | ||
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| public interface ContextValueFilter | ||
| extends Filter { | ||
| Object process(BeanContext context, Object object, String name, Object value); | ||
| } |
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41 changes: 41 additions & 0 deletions
41
core/src/test/java/com/alibaba/fastjson2/filter/ContextValueFilterTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| package com.alibaba.fastjson2.filter; | ||
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| import com.alibaba.fastjson2.JSON; | ||
| import com.alibaba.fastjson2.annotation.JSONField; | ||
| import org.junit.jupiter.api.Test; | ||
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| import java.util.concurrent.atomic.AtomicReference; | ||
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| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
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| public class ContextValueFilterTest { | ||
| @Test | ||
| public void test() throws Exception { | ||
| Bean bean = new Bean(); | ||
| bean.id = 10; | ||
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| AtomicReference<BeanContext> contextReference = new AtomicReference<>(); | ||
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| ContextValueFilter filter = (BeanContext context, Object object, String name, Object value) -> { | ||
| contextReference.set(context); | ||
| return value; | ||
| }; | ||
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| JSON.toJSONString(bean, filter); | ||
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| BeanContext context = contextReference.get(); | ||
| assertEquals(Bean.class, context.getBeanClass()); | ||
| assertEquals(int.class, context.getFieldClass()); | ||
| assertEquals(int.class, context.getFieldType()); | ||
| assertEquals(Bean.class.getField("id"), context.getField()); | ||
| assertEquals("userId", context.getAnnotation(JSONField.class).name()); | ||
| assertEquals(null, context.getFormat()); | ||
| assertEquals(null, context.getLabel()); | ||
| assertEquals(0, context.getFeatures()); | ||
| } | ||
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| public static class Bean { | ||
| @JSONField(name = "userId") | ||
| public int id; | ||
| } | ||
| } |
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18 changes: 18 additions & 0 deletions
18
fastjson1-compatible/src/main/java/com/alibaba/fastjson/serializer/BeanContext.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| package com.alibaba.fastjson.serializer; | ||
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| public class BeanContext | ||
| extends com.alibaba.fastjson2.filter.BeanContext { | ||
| public BeanContext(com.alibaba.fastjson2.filter.BeanContext ctx) { | ||
| super( | ||
| ctx.getBeanClass(), | ||
| ctx.getMethod(), | ||
| ctx.getField(), | ||
| ctx.getName(), | ||
| ctx.getLabel(), | ||
| ctx.getFieldClass(), | ||
| ctx.getFieldType(), | ||
| ctx.getFeatures(), | ||
| ctx.getFormat() | ||
| ); | ||
| } | ||
| } |
10 changes: 10 additions & 0 deletions
10
fastjson1-compatible/src/main/java/com/alibaba/fastjson/serializer/ContextValueFilter.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package com.alibaba.fastjson.serializer; | ||
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| public interface ContextValueFilter | ||
| extends com.alibaba.fastjson2.filter.ContextValueFilter, SerializeFilter { | ||
| default Object process(com.alibaba.fastjson2.filter.BeanContext context, Object object, String name, Object value) { | ||
| return process(new com.alibaba.fastjson.serializer.BeanContext(context), object, name, value); | ||
| } | ||
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| Object process(BeanContext context, Object object, String name, Object value); | ||
| } |
42 changes: 42 additions & 0 deletions
42
fastjson1-compatible/src/test/java/com/alibaba/fastjson/ContextValueFilterTest.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,42 @@ | ||
| package com.alibaba.fastjson; | ||
|
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| import com.alibaba.fastjson.annotation.JSONField; | ||
| import com.alibaba.fastjson.serializer.BeanContext; | ||
| import com.alibaba.fastjson.serializer.ContextValueFilter; | ||
| import org.junit.jupiter.api.Test; | ||
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| import java.util.concurrent.atomic.AtomicReference; | ||
|
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| import static org.junit.jupiter.api.Assertions.assertEquals; | ||
|
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| public class ContextValueFilterTest { | ||
| @Test | ||
| public void test() throws Exception { | ||
| Bean bean = new Bean(); | ||
| bean.id = 10; | ||
|
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| AtomicReference<BeanContext> contextReference = new AtomicReference<>(); | ||
|
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| ContextValueFilter filter = (BeanContext context, Object object, String name, Object value) -> { | ||
| contextReference.set(context); | ||
| return value; | ||
| }; | ||
|
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| JSON.toJSONString(bean, filter); | ||
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| BeanContext context = contextReference.get(); | ||
| assertEquals(Bean.class, context.getBeanClass()); | ||
| assertEquals(int.class, context.getFieldClass()); | ||
| assertEquals(int.class, context.getFieldType()); | ||
| assertEquals(Bean.class.getField("id"), context.getField()); | ||
| assertEquals("userId", context.getAnnotation(JSONField.class).name()); | ||
| assertEquals(null, context.getFormat()); | ||
| assertEquals(null, context.getLabel()); | ||
| assertEquals(0, context.getFeatures()); | ||
| } | ||
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| public static class Bean { | ||
| @JSONField(name = "userId") | ||
| public int id; | ||
| } | ||
| } |