package neal.http;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.net.http.AndroidHttpClient;
import java.io.File;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import neal.http.base.HttpStack;
import neal.http.base.Network;
import neal.http.base.Request;
import neal.http.base.Response;
import neal.http.impl.BasicNetwork;
import neal.http.impl.cache.DiskBasedCache;
import neal.http.impl.httpstack.HttpClientStack;
import neal.http.impl.httpstack.HurlStack;
import neal.http.impl.cache.LruImageCache;
import neal.http.impl.request.FileRequest;
import neal.http.impl.request.GsonRequest;
import neal.http.impl.request.MultipartRequest;
import neal.http.impl.request.RequestFuture;
import neal.http.impl.request.StringRequest;
import neal.http.process.ImageLoader;
import neal.http.process.RequestQueue;
import neal.http.utils.VersionUtil;
/**
* Created by Neal on 2014/10/28.
*/
public class Http {
/** Default on-disk cache directory. */
private static final String DEFAULT_CACHE_DIR = "http_cache";
private static RequestQueue mRequestQueue=null;
private static ImageLoader mImageLoader=null;
private static LruImageCache mMemCache=null;
/**
* Creates a default instance of the worker pool and calls {@link RequestQueue#start()} on it.
*
* @param context A {@link android.content.Context} to use for creating the cache dir.
* @param stack An {@link HttpStack} to use for the network, or null for default.
* @return A started {@link RequestQueue} instance.
*/
private static RequestQueue newRequestQueue(Context context, HttpStack stack) {
// TODO 缓存目录选择
// File cacheDir = new File(context.getCacheDir(), DEFAULT_CACHE_DIR);
File cacheDir = new File(context.getExternalCacheDir(), DEFAULT_CACHE_DIR);
String userAgent = "http/0";
try {
String packageName = context.getPackageName();
PackageInfo info = context.getPackageManager().getPackageInfo(packageName, 0);
userAgent = packageName + "/" + info.versionCode;
} catch (PackageManager.NameNotFoundException e) {
}
if (stack == null) {
if (VersionUtil.hasGingerbread()) {
stack = new HurlStack();
} else {
// Prior to Gingerbread, HttpUrlConnection was unreliable.
// See: http://android-developers.blogspot.com/2011/09/androids-http-clients.html
stack = new HttpClientStack(AndroidHttpClient.newInstance(userAgent));
}
}
Network network = new BasicNetwork(stack);
RequestQueue queue = new RequestQueue(new DiskBasedCache(cacheDir), network);
queue.start();
return queue;
}
/**
* Creates a default instance of the worker pool and calls {@link RequestQueue#start()} on it.
*
* @param context A {@link android.content.Context} to use for creating the cache dir.
* @return A started {@link RequestQueue} instance.
*/
private static RequestQueue newRequestQueue(Context context) {
return newRequestQueue(context, null);
}
/**
*
* @param context
*/
public static void init(Context context){
mRequestQueue=newRequestQueue(context);
mMemCache=new LruImageCache(context);
mImageLoader=new ImageLoader(context,mRequestQueue,mMemCache);
}
/**
* @param context 传Application Context
* @return current RequestQueue
*/
private static RequestQueue getRequestQueue(Context context){
if(mRequestQueue==null){
init(context);
}
return mRequestQueue;
}
/**
* @param context 传Application Context
* @return current RequestQueue
*/
public static ImageLoader getImageLoader(Context context){
if(mRequestQueue==null || mMemCache==null || mImageLoader==null){
init(context);
}
return mImageLoader;
}
/**
* Post 方式上传参数，并且得到String形式的响应.
*
* @param url
* @param params
* @param listener
* @param errorListener
*/
public static void post(String url,Map<String,String> params,Response.Listener<String> listener,
Response.ErrorListener errorListener){
if(mRequestQueue==null){
return;
}
mRequestQueue.add(new StringRequest(Request.Method.POST,url,params,listener,errorListener));
}
/**
* Get 方式上传参数，并且得到String形式的响应.
*
* @param url
* @param params
* @param listener
* @param errorListener
*/
public static void get(String url,Map<String,String> params,Response.Listener<String> listener,
Response.ErrorListener errorListener){
if(mRequestQueue==null){
return;
}
mRequestQueue.add(new StringRequest(Request.Method.GET,url,params,listener,errorListener));
}
/**
* Get 方式访问，不上传参数，并且得到String形式的响应.
* @param url
* @param listener
* @param errorListener
*/
public static void get(String url,Response.Listener<String> listener,
Response.ErrorListener errorListener){
if(mRequestQueue==null){
return;
}
mRequestQueue.add(new StringRequest(url,listener,errorListener));
}
/**
*Post 方式上传参数，并且得到json形式的响应，通过gson转化为对象类型
* @param url
* @param params
* @param clazz
* @param listener
* @param errorListener
* @param <T>
*/
public static <T> void post(String url,Map<String,String> params,Class<T> clazz,Response.Listener<T> listener,
Response.ErrorListener errorListener){
if(mRequestQueue==null){
return;
}
mRequestQueue.add(new GsonRequest<T>(Request.Method.POST,url,params,clazz,listener,errorListener));
}
/**
* Get方式上传参数，并且得到json形式的响应，通过gson转化为对象类型
* @param url
* @param params
* @param clazz
* @param listener
* @param errorListener
* @param <T>
*/
public static <T> void get(String url,Map<String,String> params,Class<T> clazz,Response.Listener<T> listener,
Response.ErrorListener errorListener){
if(mRequestQueue==null){
return;
}
mRequestQueue.add(new GsonRequest<T>(Request.Method.GET,url,params,clazz,listener,errorListener));
}
/**
* Get方式访问，不上传参数，并且得到json形式的响应，通过gson转化为对象类型
* @param url
* @param clazz
* @param listener
* @param errorListener
* @param <T>
*/
public static <T> void get(String url,Class<T> clazz,Response.Listener<T> listener,
Response.ErrorListener errorListener){
if(mRequestQueue==null){
return;
}
mRequestQueue.add(new GsonRequest<T>(url,clazz,listener,errorListener));
}
/**
* upload a file by post method, and the result is returned by a string
* 通过post方式带参数上传文件，并且得到字符串形式的响应，不要上传大文件
* @param url
* @param params
* @param files
* @param listener
* @param errorListener
*/
public static void uploadFile(String url, Map<String, String> params, Map<String, File> files, Response.Listener<String> listener,
Response.ErrorListener errorListener){
if(mRequestQueue==null){
return;
}
mRequestQueue.add(new MultipartRequest(url,params,files,listener,errorListener));
}
/**
*
* upload a file by post method, and the result is returned by a string
* 通过post方式不带参数上传文件，并且得到字符串形式的响应，不要上传大文件
* @param url
* @param files
* @param listener
* @param errorListener
*/
public static void uploadFile(String url, Map<String, File> files, Response.Listener<String> listener,
Response.ErrorListener errorListener){
uploadFile(url, null, files, listener, errorListener);
}
/**
* download a file by get method
* 通过get方式下载文件，给定文件名，不要下载大文件
* @param url
* @param fileName
* @param listener
* @param errorListener
*/
public static void downloadFile(String url,String fileName, Response.Listener<File> listener, Response.ErrorListener errorListener){
if(mRequestQueue==null){
return;
}
mRequestQueue.add(new FileRequest(url,fileName,listener,errorListener));
}
/**
* download a file by get method
* 通过get方式下载文件，不给定文件名 ，根据url生成文件名，不要下载大文件
* @param url
* @param listener
* @param errorListener
*/
public static void downloadFile(String url,Response.Listener<File> listener, Response.ErrorListener errorListener){
downloadFile(url, null, listener, errorListener);
}
/**
* 同步的请求，只写了一个作为例子，其他的需求可以仿照写出
* * RequestFuture<JSONObject> future = RequestFuture.newFuture();
* MyRequest request = new MyRequest(URL, future, future);
*
* // If you want to be able to cancel the request:
* future.setRequest(requestQueue.add(request));
*
* // Otherwise:
* requestQueue.add(request);
*
* try {
* JSONObject response = future.get();
* // do something with response
* } catch (InterruptedException e) {
* // handle the error
* } catch (ExecutionException e) {
* // handle the error
* }
*/
public static String postSyn(String url,Map<String,String> params){
if(mRequestQueue==null){
return null;
}
RequestFuture<String> future = RequestFuture.newFuture();
StringRequest stringRequest=new StringRequest(Request.Method.POST,url,params,future,future);
future.setRequest(mRequestQueue.add(stringRequest));
try {
String response =future.get();
return response;
// do something with response
} catch (InterruptedException e) {
// handle the error
} catch (ExecutionException e) {
// handle the error
}
return null;
}
public static <T> T postSyn(String url,Map<String,String> params,Class<T> clazz){
if(mRequestQueue==null){
return null;
}
RequestFuture<T> future = RequestFuture.newFuture();
future.setRequest(mRequestQueue.add(new GsonRequest<T>(Request.Method.POST,url,params,clazz,future,future)));
try {
T response =future.get();
return response;
// do something with response
} catch (InterruptedException e) {
// handle the error
} catch (ExecutionException e) {
// handle the error
}
return null;
}
}