概要
VolleyでCookieを設定した状態で複数通信リクエストを行うとエラーが発生して通信が失敗する場合がある
詳細
以下のようなエラーログが出力される。
10-31 17:37:37.484: E/Volley(2448): java.lang.IllegalStateException: Adapter is detached.
10-31 17:37:37.484: E/Volley(2448): at org.apache.http.impl.conn.AbstractPooledConnAdapter.assertAttached(AbstractPooledConnAdapter.java:90)
10-31 17:37:37.484: E/Volley(2448): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:118)
10-31 17:37:37.484: E/Volley(2448): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:360)
10-31 17:37:37.484: E/Volley(2448): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
10-31 17:37:37.484: E/Volley(2448): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
10-31 17:37:37.484: E/Volley(2448): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
10-31 17:37:37.484: E/Volley(2448): at com.android.volley.toolbox.HttpClientStack.performRequest(HttpClientStack.java:87)
10-31 17:37:37.484: E/Volley(2448): at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:93)
10-31 17:37:37.484: E/Volley(2448): at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:110)
10-31 17:37:37.584: E/Volley(2448): [232] NetworkDispatcher.run: Unhandled exception java.lang.IllegalStateException: No wrapped connection.
10-31 17:37:37.584: E/Volley(2448): java.lang.IllegalStateException: No wrapped connection.
10-31 17:37:37.584: E/Volley(2448): at org.apache.http.impl.conn.AbstractClientConnAdapter.assertValid(AbstractClientConnAdapter.java:163)
10-31 17:37:37.584: E/Volley(2448): at org.apache.http.impl.conn.AbstractClientConnAdapter.getRemotePort(AbstractClientConnAdapter.java:314)
10-31 17:37:37.584: E/Volley(2448): at org.apache.http.client.protocol.RequestAddCookies.process(RequestAddCookies.java:137)
10-31 17:37:37.584: E/Volley(2448): at org.apache.http.protocol.BasicHttpProcessor.process(BasicHttpProcessor.java:290)
10-31 17:37:37.584: E/Volley(2448): at org.apache.http.protocol.HttpRequestExecutor.preProcess(HttpRequestExecutor.java:160)
10-31 17:37:37.584: E/Volley(2448): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:408)
10-31 17:37:37.584: E/Volley(2448): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
10-31 17:37:37.584: E/Volley(2448): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
10-31 17:37:37.584: E/Volley(2448): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
10-31 17:37:37.584: E/Volley(2448): at com.android.volley.toolbox.HttpClientStack.performRequest(HttpClientStack.java:87)
10-31 17:37:37.584: E/Volley(2448): at com.android.volley.toolbox.BasicNetwork.performRequest(BasicNetwork.java:93)
10-31 17:37:37.584: E/Volley(2448): at com.android.volley.NetworkDispatcher.run(NetworkDispatcher.java:110)
解決法
RequestQueueを生成する時にthreadPoolSizeに1を設定する
public static RequestQueue newRequestQueue(Context context, HttpStack stack) {
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) {
}
if (stack == null) {
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, 1);
queue.start();
return queue;
}
VolleyクラスのnewRequestQueueをコピーしてRequestQueueの生成部分を変えているだけです。
どうもCookie設定を設定している場合は複数のNetworkDispatchrで使用するのに問題があるようです。