What is the difference between the three(marked as comments) :
MultiThreadedHttpConnectionManager connManag = new MultiThreadedHttpConnectionManager(); HttpConnectionManagerParams managParams = connManag.getParams(); managParams.setConnectionTimeout(connectiontimeout); // 1 managParams.setSoTimeout(sotimeout); //2 HttpMethodBase baseMethod = null; try { HttpClient client = new HttpClient(connManag); client.getParams().setParameter("http.connection-manager.timeout", poolTimeout); //3 baseMethod = new GetMethod(…); int statusCode = client.executeMethod(…); … } catch (ConnectTimeoutException cte ){ //Took too long to connect to remote host } catch (SocketTimeoutException ste){ //Remote host didn’t respond in time } catch (Exception se){ //Some other error occurred } finally { if (baseMethod != null) baseMethod.releaseConnection(); }
1. setConnectionTimeout
- if it determines the timeout until connection is established.
2. setSoTimeout
- if it determines the period of inactivity or time difference between two consecutive packets ,
Then what does the below one do :
3. "http.connection-manager.timeout"
request timeout — a time period required to process an HTTP call: from sending a request to receiving a response. connection timeout — a time period in which a client should establish a connection with a server.
timeout) – the time waiting for data – after establishing the connection; maximum time of inactivity between two data packets. the Connection Manager Timeout (http. connection-manager. timeout) – the time to wait for a connection from the connection manager/pool.
The read timeout is the timeout on waiting to read data1. If the server (or network) fails to deliver any data <timeout> seconds after the client makes a socket read call, a read timeout error will be raised.
CloseableHttpClient is the base class of the httpclient library, the one all implementations use. Other subclasses are for the most part deprecated. The HttpClient is an interface for this class and other classes. You should then use the CloseableHttpClient in your code, and create it using the HttpClientBuilder .
At the lowest level HTTP is TCP socket. So when you request a URL and get a response, at lower level, a client Socket is created which establishes connection to the remote Server Socket, sends some data and receives response.
setConnectionTimeout : Client tries to connect to the server. This denotes the time elapsed before the connection established or Server responded to connection request.
setSoTimeout : After establishing the connection, the client socket waits for response after sending the request. This is the elapsed time since the client has sent request to the server before server responds. Please note that this is not same as HTTP Error 408
which the server sends to the client. In other words its maximum period inactivity between two consecutive data packets arriving at client side after connection is established.
http.connection-manager.timeout : MultiThreadedHttpConnectionManager
uses a pool of HTTP connections. It has maximum and minimum values per host set for it. If all the connections for particular host are has reached max value, the request for new connection for the same host will have to wait till any one of the existing connection becomes free. This parameter denotes the time elapsed when a connection request was made and before the HttpConnectionManager
returned a connection.
This sequence diagram might help.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With