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com.owlike.genson.reflect.PropertyMutator Maven / Gradle / Ivy
package com.owlike.genson.reflect;
import java.lang.annotation.Annotation;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import com.owlike.genson.*;
import com.owlike.genson.stream.ObjectReader;
public abstract class PropertyMutator extends BeanProperty implements Comparable {
Deserializer propertyDeserializer;
protected PropertyMutator(String name, Type type, Class declaringClass, Annotation[] annotations, int modifiers) {
super(name, type, declaringClass, annotations, modifiers);
}
public Object deserialize(ObjectReader reader, Context ctx) {
try {
return propertyDeserializer.deserialize(reader, ctx);
} catch (Throwable th) {
throw couldNotDeserialize(th);
}
}
public void deserialize(Object into, ObjectReader reader, Context ctx) {
Object propValue = null;
try {
propValue = propertyDeserializer.deserialize(reader, ctx);
} catch (Throwable th) {
throw couldNotDeserialize(th);
}
mutate(into, propValue);
}
public abstract void mutate(Object target, Object value);
public int compareTo(PropertyMutator o) {
return o.priority() - priority();
}
protected JsonBindingException couldNotMutate(Exception e) {
return new JsonBindingException("Could not mutate value of property named '"
+ name + "' using mutator " + signature(), e);
}
protected JsonBindingException couldNotDeserialize(Throwable e) {
return new JsonBindingException("Could not deserialize to property '" + name + "' of class " + declaringClass, e);
}
public static class MethodMutator extends PropertyMutator {
protected final Method _setter;
public MethodMutator(String name, Method setter, Type type, Class declaringClass) {
super(name, type, declaringClass, setter.getAnnotations(), setter.getModifiers());
this._setter = setter;
if (!_setter.isAccessible()) {
_setter.setAccessible(true);
}
}
@Override
public void mutate(Object target, Object value) {
try {
_setter.invoke(target, value);
} catch (IllegalArgumentException e) {
throw couldNotMutate(e);
} catch (IllegalAccessException e) {
throw couldNotMutate(e);
} catch (InvocationTargetException e) {
throw couldNotMutate(e);
}
}
@Override
public String signature() {
return _setter.toGenericString();
}
@Override
public int priority() {
return 100;
}
}
public static class FieldMutator extends PropertyMutator {
protected final Field _field;
public FieldMutator(String name, Field field, Type type, Class declaringClass) {
super(name, type, declaringClass, field.getAnnotations(), field.getModifiers());
this._field = field;
if (!_field.isAccessible()) {
_field.setAccessible(true);
}
}
@Override
public void mutate(Object target, Object value) {
try {
_field.set(target, value);
} catch (IllegalArgumentException e) {
throw couldNotMutate(e);
} catch (IllegalAccessException e) {
throw couldNotMutate(e);
}
}
@Override
public String signature() {
return _field.toGenericString();
}
@Override
public int priority() {
return 0;
}
}
}
