package com.belerweb.social.bean;
import java.lang.reflect.Method;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Locale;
import org.json.JSONArray;
import org.json.JSONObject;
import com.belerweb.social.exception.SocialException;
public class Result<T> {
private Error error;
private T result;
private List<T> results;
public Result(Error error) {
this.error = error;
}
public Result(T result) {
this.result = result;
}
public Result(List<T> results) {
this.results = results;
}
public boolean success() {
return error == null;
}
public Error getError() {
return error;
}
public T getResult() {
return result;
}
public List<T> getResults() {
return results;
}
public static <T> Result<T> parse(String json, Class<T> resultType) {
try {
if (json.matches("^\\s*\\[.*$")) {
return new Result<T>(parse(new JSONArray(json), resultType));
} else {
return parse(new JSONObject(json), resultType);
}
} catch (Exception e) {
throw new SocialException(e);
}
}
@SuppressWarnings("unchecked")
public static <T> Result<T> parse(JSONObject jsonObject, Class<T> resultType) {
try {
Error error = Error.parse(jsonObject);
if (error == null) {
Method parse = resultType.getMethod("parse", JSONObject.class);
T obj = (T) parse.invoke(null, jsonObject);
return new Result<T>(obj);
}
return new Result<T>(error);
} catch (Exception e) {
throw new SocialException(e);
}
}
@SuppressWarnings("unchecked")
public static <T> List<T> parse(JSONArray jsonArray, Class<T> resultType) {
List<T> list = new ArrayList<T>();
if (jsonArray == null) {
return list;
}
try {
for (int i = 0; i < jsonArray.length(); i++) {
if (resultType.isAssignableFrom(String.class)) {
list.add((T) toString(jsonArray.get(i)));
} else if (resultType.isAssignableFrom(Integer.class)) {
list.add((T) parseInteger(jsonArray.get(i)));
} else if (resultType.isAssignableFrom(Long.class)) {
list.add((T) parseLong(jsonArray.get(i)));
} else if (resultType.isAssignableFrom(Double.class)) {
list.add((T) parseDouble(jsonArray.get(i)));
} else {
Method parse = resultType.getMethod("parse", JSONObject.class);
list.add((T) parse.invoke(null, jsonArray.getJSONObject(i)));
}
}
return list;
} catch (Exception e) {
throw new SocialException(e);
}
}
public static String toString(Object obj) {
if (obj == null) {
return null;
}
return obj.toString();
}
public static Long parseLong(Object obj) {
if (obj == null) {
return null;
}
Long result = null;
if (obj instanceof Number) {
result = ((Number) obj).longValue();
} else if (obj instanceof String) {
result = Long.valueOf((String) obj);
}
return result;
}
public static Integer parseInteger(Object obj) {
if (obj == null) {
return null;
}
Integer result = null;
if (obj instanceof Number) {
result = ((Number) obj).intValue();
} else if (obj instanceof String) {
result = Integer.valueOf((String) obj);
}
return result;
}
public static Double parseDouble(Object obj) {
if (obj == null) {
return null;
}
Double result = null;
if (obj instanceof Number) {
result = ((Number) obj).doubleValue();
} else if (obj instanceof String) {
result = Double.valueOf((String) obj);
}
return result;
}
public static Boolean parseBoolean(Object obj) {
if (obj == null) {
return null;
}
Boolean result = null;
if (obj instanceof Boolean) {
result = (Boolean) obj;
} else if (obj instanceof String) {
result = Boolean.valueOf(obj.toString());
}
return result;
}
public static Date parseDate(Object obj, String pattern, Locale locale) {
if (obj == null) {
return null;
}
Date result = null;
if (obj instanceof Date) {
result = new Date(((Date) obj).getTime());
} else if (obj instanceof String) {
try {
SimpleDateFormat format = new SimpleDateFormat(pattern, locale);
result = format.parse((String) obj);
} catch (ParseException e) {
throw new SocialException(e);
}
}
return result;
}
}