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* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
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* KIND, either express or implied. See the License for the
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* under the License.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
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*/
package org.apache.http.impl.client;
import java.net.ConnectException;
import java.net.SocketTimeoutException;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.ConnectionBackoffStrategy;
/**
* This {@link ConnectionBackoffStrategy} backs off either for a raw
* network socket or connection timeout or if the server explicitly
* sends a 503 (Service Unavailable) response.
*
* @since 4.2
*/
public class DefaultBackoffStrategy implements ConnectionBackoffStrategy {
@Override
public boolean shouldBackoff(final Throwable t) {
return (t instanceof SocketTimeoutException
|| t instanceof ConnectException);
}
@Override
public boolean shouldBackoff(final HttpResponse resp) {
return (resp.getStatusLine().getStatusCode() == HttpStatus.SC_SERVICE_UNAVAILABLE);
}
}
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