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package generate.httpclient;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CountDownLatch;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.concurrent.FutureCallback;
import org.apache.http.impl.nio.client.DefaultHttpAsyncClient;
import org.apache.http.nio.client.HttpAsyncClient;
import org.apache.http.nio.reactor.IOReactorException;
public class AsynClient{
/**
* @param args
* @throws IOReactorException
* @throws InterruptedException
*/
private List<String> urls;
private HandlerFailThread failHandler;
public AsynClient(List<String> list){
failHandler=new HandlerFailThread();
urls=list;
}
public Map<String,String> asynGet() throws IOReactorException,
InterruptedException {
final HttpAsyncClient httpclient = new DefaultHttpAsyncClient();
httpclient.start();
int urlLength=urls.size();
HttpGet[] requests = new HttpGet[urlLength];
int i=0;
for(String url : urls){
requests[i]=new HttpGet(url);
i++;
}
final CountDownLatch latch = new CountDownLatch(requests.length);
final Map<String, String> responseMap=new HashMap<String, String>();
try {
for (final HttpGet request : requests) {
httpclient.execute(request, new FutureCallback<HttpResponse>() {
public void completed(final HttpResponse response) {
latch.countDown();
responseMap.put(request.getURI().toString(), response.getStatusLine().toString());
try {
System.out.println(request.getRequestLine() + "->"
+ response.getStatusLine()+"->");
//+readInputStream(response.getEntity().getContent())
} catch (IllegalStateException e) {
failHandler.putFailUrl(request.getURI().toString(),
response.getStatusLine().toString());
e.printStackTrace();
} catch (Exception e) {
failHandler.putFailUrl(request.getURI().toString(),
response.getStatusLine().toString());
e.printStackTrace();
}
}
public void failed(final Exception ex) {
latch.countDown();
ex.printStackTrace();
failHandler.putFailUrl(request.getURI().toString(),
ex.getMessage());
}
public void cancelled() {
latch.countDown();
}
});
}
System.out.println("Doing...");
} finally {
latch.await();
httpclient.shutdown();
}
System.out.println("Done");
failHandler.printFailUrl();
return responseMap;
}
private String readInputStream(InputStream input) throws IOException{
byte[] buffer = new byte[128];
int len = 0;
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
while((len = input.read(buffer)) >= 0) {
bytes.write(buffer, 0, len);
}
return bytes.toString();
}
/**
* Test
* @param args
*/
public static void main(String[] args) {
List<String> urls=new ArrayList<String>();
urls.add("
http://127.0.0.1/examples/servlets/");
urls.add("
http://127.0.0.1/examples/servlets/");
urls.add("
http://127.0.0.1/examples/servlets/");
for(int i=0;i<10;i++){
urls.addAll(urls);
}
System.out.println(urls.size());
AsynClient client=new AsynClient(urls);
try {
client.asynGet();
} catch (IOReactorException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("done");
}
}