ClientConnectionRelease.java

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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF 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
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 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
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 *
 * This software consists of voluntary contributions made by many
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package org.apache.hc.client5.http.examples;

import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.core5.http.ClassicHttpResponse;
import org.apache.hc.core5.http.HttpHost;
import org.apache.hc.core5.http.io.entity.EntityUtils;
import org.apache.hc.core5.http.message.StatusLine;

/**
 * This example demonstrates how to ensure the release of the underlying HTTP connection back to
 * the connection manager in case of a manual processing of HTTP responses.
 */
public class ClientConnectionRelease {

    public static void main(final String[] args) throws Exception {
        try (final CloseableHttpClient httpclient = HttpClients.createDefault()) {
            final HttpHost target = new HttpHost("http", "httpbin.org");
            final HttpGet httpget = new HttpGet("/get");

            System.out.println("Executing request " + httpget.getMethod() + " " + httpget.getUri());

            // Make sure the response is always closed at the end of the message exchange
            try (ClassicHttpResponse response = httpclient.executeOpen(target, httpget, null)) {
                System.out.println("----------------------------------------");
                System.out.println(httpget + "->" + new StatusLine(response));
                // Make sure the response content entity has been fully consumed
                // in order to ensure the underlying connection can be re-used for
                // subsequent requests
                EntityUtils.consume(response.getEntity());
            }
        }
    }

}