package com.ectrip.trips.net;

import java.lang.reflect.Array;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import com.ectrip.cyt.callback.HttpCallback;

/**
 * @author jigo 网络访问核心类
 */
public class HttpHelperCore {
	// 引入线程池来管理多线程
	public ExecutorService executorService = Executors.newFixedThreadPool(3);

	/**
	 * Post 网络请求
	 *
	 * @param <T1>
	 * @param <T2>
	 *
	 * @param url
	 *            域名
	 * @param method
	 *            方法
	 * @param errorData
	 *            这个参数是判断fastJson 解析的数据是否正确，如果数据为空的情况下，返回失败
	 * @param map
	 *            参数
	 */
	public <T> void executeHttpPost(String url,String method,
									HashMap<String, String> map,HttpCallback<T> resultListener,
									String errorData,Class<T> cls) {
		// 用于子线程与主线程通信的Handler
		final HttpPostHandler<T> mHandler = new HttpPostHandler<T>(
				resultListener);

		executorService.submit(new HttpPostRunnable<T>(resultListener, url,
				method, map, mHandler,errorData,cls));
	}

	/**
	 * 判断对象或对象数组中每一个对象是否为空: 对象为null，字符序列长度为0，集合类、Map为empty
	 *
	 * @param obj
	 * @return
	 */
	public static boolean isNullOrEmpty(Object obj) {
		if (obj == null)
			return true;
		if (obj instanceof CharSequence)
			return ((CharSequence) obj).length() == 0;
		if (obj instanceof Collection)
			return ((Collection) obj).isEmpty();
		if (obj instanceof Map)
			return ((Map) obj).isEmpty();
		if (obj.getClass().isArray()) {
			return Array.getLength(obj) == 0;
		}
		if (obj instanceof Object[]) {
			Object[] object = (Object[]) obj;
			if (object.length == 0) {
				return true;
			}
			boolean empty = true;
			for (int i = 0; i < object.length; i++) {
				if (!isNullOrEmpty(object[i])) {
					empty = false;
					break;
				}
			}
			return empty;
		}
		return false;
	}
}