org.apache.hc.client5.http.impl

Class DefaultHttpRequestRetryStrategy

java.lang.Object

org.apache.hc.client5.http.impl.DefaultHttpRequestRetryStrategy

All Implemented Interfaces:

HttpRequestRetryStrategy

public class DefaultHttpRequestRetryStrategy
extends java.lang.Object
implements HttpRequestRetryStrategy

Default implementation of the HttpRequestRetryStrategy interface.

Since:

5.0

Field Summary

Fields

Modifier and Type	Field and Description
static DefaultHttpRequestRetryStrategy	INSTANCE

Constructor Summary

Constructors

Modifier	Constructor and Description
	DefaultHttpRequestRetryStrategy() Create the HTTP request retry strategy with a max retry count of 1, default retry interval of 1 second, and using the following list of non-retriable I/O exception classes: InterruptedIOException UnknownHostException ConnectException ConnectionClosedException SSLException and retriable HTTP status codes: SC_TOO_MANY_REQUESTS (429) SC_SERVICE_UNAVAILABLE (503)
	DefaultHttpRequestRetryStrategy(int maxRetries, TimeValue defaultRetryInterval) Create the HTTP request retry strategy using the following list of non-retriable I/O exception classes: InterruptedIOException UnknownHostException ConnectException ConnectionClosedException NoRouteToHostException SSLException and retriable HTTP status codes: SC_TOO_MANY_REQUESTS (429) SC_SERVICE_UNAVAILABLE (503)
protected	DefaultHttpRequestRetryStrategy(int maxRetries, TimeValue defaultRetryInterval, java.util.Collection<java.lang.Class<? extends java.io.IOException>> clazzes, java.util.Collection<java.lang.Integer> codes)

Method Summary

Modifier and Type	Method and Description
TimeValue	getRetryInterval(HttpResponse response, int execCount, HttpContext context) Determines the retry interval between subsequent retries.
protected boolean	handleAsIdempotent(HttpRequest request)
boolean	retryRequest(HttpRequest request, java.io.IOException exception, int execCount, HttpContext context) Determines if a method should be retried after an I/O exception occurred during execution.
boolean	retryRequest(HttpResponse response, int execCount, HttpContext context) Determines if a method should be retried given the response from the target server.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static final DefaultHttpRequestRetryStrategy INSTANCE

Constructor Detail

DefaultHttpRequestRetryStrategy

protected DefaultHttpRequestRetryStrategy(int maxRetries,
                                          TimeValue defaultRetryInterval,
                                          java.util.Collection<java.lang.Class<? extends java.io.IOException>> clazzes,
                                          java.util.Collection<java.lang.Integer> codes)

DefaultHttpRequestRetryStrategy

public DefaultHttpRequestRetryStrategy(int maxRetries,
                                       TimeValue defaultRetryInterval)

Create the HTTP request retry strategy using the following list of non-retriable I/O exception classes:

• InterruptedIOException
• UnknownHostException
• ConnectException
• ConnectionClosedException
• NoRouteToHostException
• SSLException

and retriable HTTP status codes:

• SC_TOO_MANY_REQUESTS (429)
• SC_SERVICE_UNAVAILABLE (503)

Parameters:

maxRetries - how many times to retry; 0 means no retries

defaultRetryInterval - the default retry interval between subsequent retries if the Retry-After header is not set or invalid.

DefaultHttpRequestRetryStrategy

public DefaultHttpRequestRetryStrategy()

Create the HTTP request retry strategy with a max retry count of 1, default retry interval of 1 second, and using the following list of non-retriable I/O exception classes:

• InterruptedIOException
• UnknownHostException
• ConnectException
• ConnectionClosedException
• SSLException

and retriable HTTP status codes:

• SC_TOO_MANY_REQUESTS (429)
• SC_SERVICE_UNAVAILABLE (503)

Method Detail

retryRequest

public boolean retryRequest(HttpRequest request,
                            java.io.IOException exception,
                            int execCount,
                            HttpContext context)

Description copied from interface: HttpRequestRetryStrategy

Determines if a method should be retried after an I/O exception occurred during execution.

Specified by:

retryRequest in interface HttpRequestRetryStrategy

Parameters:

request - the request failed due to an I/O exception

exception - the exception that occurred

execCount - the number of times this method has been unsuccessfully executed

context - the context for the request execution

Returns:

true if the request should be retried, false otherwise

retryRequest

public boolean retryRequest(HttpResponse response,
                            int execCount,
                            HttpContext context)

Description copied from interface: HttpRequestRetryStrategy

Determines if a method should be retried given the response from the target server.

Specified by:

retryRequest in interface HttpRequestRetryStrategy

Parameters:

response - the response from the target server

execCount - the number of times this method has been unsuccessfully executed

context - the context for the request execution

Returns:

true if the request should be retried, false otherwise

getRetryInterval

public TimeValue getRetryInterval(HttpResponse response,
                                  int execCount,
                                  HttpContext context)

Description copied from interface: HttpRequestRetryStrategy

Determines the retry interval between subsequent retries.

Specified by:

getRetryInterval in interface HttpRequestRetryStrategy

Parameters:

response - the response from the target server

execCount - the number of times this method has been unsuccessfully executed

context - the context for the request execution

Returns:

the retry interval between subsequent retries

handleAsIdempotent

protected boolean handleAsIdempotent(HttpRequest request)