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package com.jsoniter;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;
public class ExtensionManager {
static List<Extension> extensions = new ArrayList<Extension>();
public static void registerExtension(Extension extension) {
extensions.add(extension);
}
public static CustomizedConstructor getCtor(Class clazz) {
for (Extension extension : extensions) {
CustomizedConstructor ctor = extension.getConstructor(clazz);
if (ctor != null) {
for (Binding param : ctor.parameters) {
if (param.fromNames == null) {
param.fromNames = new String[]{param.name};
}
param.clazz = clazz;
updateFromNames(param);
}
return ctor;
}
}
return CustomizedConstructor.DEFAULT_INSTANCE;
}
public static List<Binding> getFields(Class clazz) {
ArrayList<Binding> bindings = new ArrayList<Binding>();
for (Field field : clazz.getFields()) {
if (Modifier.isStatic(field.getModifiers())) {
continue;
}
Binding binding = new Binding();
binding.fromNames = new String[]{field.getName()};
binding.name = field.getName();
binding.valueType = field.getType();
binding.clazz = clazz;
binding.annotations = field.getAnnotations();
updateFromNames(binding);
bindings.add(binding);
}
return bindings;
}
private static void updateFromNames(Binding binding) {
for (Extension extension : extensions) {
if (extension.updateBinding(binding)) {
break;
}
}
}
public static List<CustomizedSetter> getSetters(Class clazz) {
ArrayList<CustomizedSetter> setters = new ArrayList<CustomizedSetter>();
for (Method method : clazz.getMethods()) {
if (Modifier.isStatic(method.getModifiers())) {
continue;
}
String methodName = method.getName();
if (methodName.length() < 4) {
continue;
}
if (!methodName.startsWith("set")) {
continue;
}
Type[] paramTypes = method.getGenericParameterTypes();
if (paramTypes.length != 1) {
continue;
}
String fromName = methodName.substring("set".length());
char[] fromNameChars = fromName.toCharArray();
fromNameChars[0] = Character.toLowerCase(fromNameChars[0]);
fromName = new String(fromNameChars);
CustomizedSetter setter = new CustomizedSetter();
setter.methodName = methodName;
Binding param = new Binding();
param.fromNames = new String[]{fromName};
param.name = fromName;
param.valueType = paramTypes[0];
param.clazz = clazz;
updateFromNames(param);
setter.parameters.add(param);
setters.add(setter);
}
for (Extension extension : extensions) {
List<CustomizedSetter> moreSetters = extension.getSetters(clazz);
if (moreSetters != null) {
for (CustomizedSetter moreSetter : moreSetters) {
for (Binding param : moreSetter.parameters) {
if (param.fromNames == null) {
param.fromNames = new String[]{param.name};
}
param.clazz = clazz;
updateFromNames(param);
}
}
setters.addAll(moreSetters);
}
}
return setters;
}
public static List<Binding> getGetters(Class clazz) {
ArrayList<Binding> getters = new ArrayList<Binding>();
for (Method method : clazz.getMethods()) {
if (Modifier.isStatic(method.getModifiers())) {
continue;
}
String methodName = method.getName();
if ("getClass".equals(methodName)) {
continue;
}
if (methodName.length() < 4) {
continue;
}
if (!methodName.startsWith("get")) {
continue;
}
if (method.getGenericParameterTypes().length != 0) {
continue;
}
String fromName = methodName.substring("get".length());
char[] fromNameChars = fromName.toCharArray();
fromNameChars[0] = Character.toLowerCase(fromNameChars[0]);
fromName = new String(fromNameChars);
Binding getter = new Binding();
getter.fromNames = new String[]{methodName + "()"};
getter.name = fromName;
getter.valueType = method.getGenericReturnType();
getter.clazz = clazz;
getters.add(getter);
}
return getters;
}
}