net.shibboleth.utilities.java.support.httpclient.RequestConnectionClose Maven / Gradle / Ivy
/*
* Licensed to the University Corporation for Advanced Internet Development,
* Inc. (UCAID) under one or more contributor license agreements. See the
* NOTICE file distributed with this work for additional information regarding
* copyright ownership. The UCAID licenses this file 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, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.shibboleth.utilities.java.support.httpclient;
import java.io.IOException;
import org.apache.http.HttpException;
import org.apache.http.HttpHeaders;
import org.apache.http.HttpRequest;
import org.apache.http.HttpRequestInterceptor;
import org.apache.http.HttpVersion;
import org.apache.http.protocol.HttpContext;
/**
* Adds a Connection: close to all HTTP/1.1 requests.
*
*
* This interceptor essentially disables connection keep-alive support and, by virtue of the server closing the
* connection, prevents a {@link org.apache.http.conn.ClientConnectionManager} from holding open and reusing
* connections. If you'd like to allow the {@link org.apache.http.conn.ClientConnectionManager} to hold open connections
* for a while and potentially reuse them consider using the {@link IdleConnectionSweeper} to limit the amount of time
* the connections are held open.
*
*/
public class RequestConnectionClose implements HttpRequestInterceptor {
/** {@inheritDoc} */
public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException {
if (HttpVersion.HTTP_1_1.equals(request.getProtocolVersion())) {
request.addHeader(HttpHeaders.CONNECTION, "close");
}
}
}