I have a service that is loading images from a server. Almost every time the
service runs it gets hung up on what seems to be misfire with the connection
to the server. On closer inspection it looks as though HTTPClient
spontaneously decides to hang as the last successful request from the server
results in a status 200 and I don't see the next request go out. What's
really bizarre is that it unblocks if I turn the device and force landscape
(or vice-versa). If I'm loading, say 30 images, I'll have to turn the device
portrait and landscape 2-3x for all the requests to complete sucessfully.
Definately a wtf moment.
Here's my setup:
HttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion( params, HttpVersion.HTTP_1_1 );
HttpProtocolParams.setContentCharset( params,
HTTP.DEFAULT_CONTENT_CHARSET );
HttpProtocolParams.setUseExpectContinue( params, true );
HttpConnectionParams.setConnectionTimeout( params,
Constants.HTTP_CONNECTION_TIMEOUT );
HttpConnectionParams.setSoTimeout( params,
Constants.HTTP_SOCKET_TIMEOUT );
HttpConnectionParams.setStaleCheckingEnabled( params, true );
HttpConnectionParams.setLinger( params, 0 );
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register( new Scheme( "http",
PlainSocketFactory.getSocketFactory(), 80 ) );
schemeRegistry.register( new Scheme( "https",
SSLSocketFactory.getSocketFactory(), 443 ) );
ClientConnectionManager connectionManager = new
ThreadSafeClientConnManager( params, schemeRegistry );
HttpRequestInterceptor preemptiveAuth = new
HttpRequestInterceptor()
{
public void process( final HttpRequest request, final
HttpContext context ) throws HttpException, IOException
{
AuthState authState = (AuthState) context.getAttribute(
ClientContext.TARGET_AUTH_STATE );
CredentialsProvider credsProvider =
(CredentialsProvider) context.getAttribute( ClientContext.CREDS_PROVIDER );
HttpHost targetHost = (HttpHost) context.getAttribute(
ExecutionContext.HTTP_TARGET_HOST );
if( authState.getAuthScheme() == null )
{
AuthScope authScope = new AuthScope(
targetHost.getHostName(), targetHost.getPort() );
Credentials creds = credsProvider.getCredentials(
authScope );
if( creds != null )
{
authState.setAuthScheme( new BasicScheme() );
authState.setCredentials( creds );
}
}
}
};
httpClient = new DefaultHttpClient( connectionManager, params );
httpClient.addRequestInterceptor( preemptiveAuth, 0 );
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