/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.volley.toolbox;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.http.AndroidHttpClient;
import android.os.Build;

import com.android.volley.Network;
import com.android.volley.RequestQueue;

import java.io.File;

public class Volley {

    /** Default on-disk cache directory. */
    private static final String DEFAULT_CACHE_DIR = "volley";

    /**
     * Creates a default instance of the worker pool and calls {@link RequestQueue#start()} on it.
     *
     * @param context A {@link Context} to use for creating the cache dir.
     * @return A started {@link RequestQueue} instance.
     */
    public static RequestQueue newRequestQueue(Context context) {
        File cacheDir = new File(context.getCacheDir(), DEFAULT_CACHE_DIR);

        String userAgent = "volley/0";
        try {
            String packageName = context.getPackageName();

            PackageInfo info = context.getPackageManager().getPackageInfo(packageName, 0);
            userAgent = packageName + "/" + info.versionCode;
        } catch (NameNotFoundException e) {
        }

        HttpStack stack;
        if (Build.VERSION.SDK_INT >= 9) {
            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;
    }
}

@@ -1272,16 +1272,102 @@
 he dir.%0A
+     * @param stack An %7B@link HttpStack%7D to use for the network, or null for default.%0A
      * @
@@ -1484,16 +1484,33 @@
  context
+, HttpStack stack
 ) %7B%0A    
@@ -1915,25 +1915,33 @@
     
-HttpStack stack;%0A
+if (stack == null) %7B%0A    
     
@@ -1982,32 +1982,36 @@
 ) %7B%0A            
+    
 stack = new Hurl
@@ -2027,16 +2027,20 @@
         
+    
 %7D else %7B
@@ -2040,16 +2040,20 @@
  else %7B%0A
+    
         
@@ -2127,16 +2127,20 @@
         
+  
+  
 // See: 
@@ -2217,32 +2217,36 @@
 tml%0A            
+    
 stack = new Http
@@ -2300,16 +2300,30 @@
 gent));%0A
+            %7D%0A
         
@@ -2514,11 +2514,384 @@
 e;%0A    %7D
+%0A%0A    /**%0A     * Creates a default instance of the worker pool and calls %7B@link RequestQueue#start()%7D on it.%0A     *%0A     * @param context A %7B@link Context%7D to use for creating the cache dir.%0A     * @return A started %7B@link RequestQueue%7D instance.%0A     */%0A    public static RequestQueue newRequestQueue(Context context) %7B%0A        return newRequestQueue(context, null);%0A    %7D
 %0A%7D%0A

Allow custom HttpStack in Volley.newRequestQueue.