/*
* ====================================================================
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* 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
* "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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
*/
package org.apache.http.examples.nio.client;
import java.util.concurrent.CountDownLatch;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.nio.client.DefaultHttpAsyncClient;
import org.apache.http.nio.client.HttpAsyncClient;
import org.apache.http.nio.concurrent.FutureCallback;
public class AsyncClientHttpExchangeFutureCallback {
public static void main(String[] args) throws Exception {
HttpAsyncClient httpclient = new DefaultHttpAsyncClient();
httpclient.start();
try {
HttpGet[] requests = new HttpGet[] {
new HttpGet("http://www.apache.org/"),
new HttpGet("https://www.verisign.com/"),
new HttpGet("http://www.google.com/")
};
final CountDownLatch latch = new CountDownLatch(requests.length);
for (final HttpGet request: requests) {
httpclient.execute(request, new FutureCallback<HttpResponse>() {
public void completed(final HttpResponse response) {
latch.countDown();
System.out.println(request.getRequestLine() + "->" + response.getStatusLine());
}
public void failed(final Exception ex) {
latch.countDown();
ex.printStackTrace();
}
public void cancelled() {
latch.countDown();
}
});
}
latch.await();
System.out.println("Shutting down");
} finally {
httpclient.shutdown();
}
System.out.println("Done");
}
}