org.apache.juneau.rest.client.BasicHttpRequestRetryHandler Maven / Gradle / Ivy

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package org.apache.juneau.rest.client;

import java.io.*;

import org.apache.http.impl.client.*;
import org.apache.http.protocol.*;

/**
 * An extension of {@link StandardHttpRequestRetryHandler} that adds support for a retry interval.
 *
 * See Also:

 * 	juneau-rest-client
 * 
 */
public class BasicHttpRequestRetryHandler extends StandardHttpRequestRetryHandler {

	private final int retryInterval;

	/**
	 * Create the request retry handler.
	 *
	 * Uses the following list of non-retryable IOException classes:
	 * 
	 * InterruptedIOException
	 * UnknownHostException
	 * ConnectException
	 * SSLException
	 * 
	 *
	 * @param retryCount How many times to retry. 0 means no retries.
	 * @param retryInterval The time in milliseconds to sleep before trying again, or <=0 for no interval.
	 * @param requestSentRetryEnabled Specify true if it's OK to retry non-idempotent requests that have been sent.
	 */
	public BasicHttpRequestRetryHandler(int retryCount, int retryInterval, boolean requestSentRetryEnabled) {
		super(retryCount, requestSentRetryEnabled);
		this.retryInterval = retryInterval;
	}

	@Override
	public boolean retryRequest(IOException exception, int executionCount, HttpContext context) {
		if (retryInterval > 0) {
			try {
				Thread.sleep(retryInterval);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
		}
		return super.retryRequest(exception, executionCount, context);
	}
}