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Posted to commits@hc.apache.org by ol...@apache.org on 2013/05/16 16:15:11 UTC
svn commit: r1483382 -
/httpcomponents/httpclient/trunk/httpclient/src/examples/org/apache/http/examples/client/ClientWithRequestFuture.java
Author: olegk
Date: Thu May 16 14:15:11 2013
New Revision: 1483382
URL: http://svn.apache.org/r1483382
Log:
Tweaked example app
Modified:
httpcomponents/httpclient/trunk/httpclient/src/examples/org/apache/http/examples/client/ClientWithRequestFuture.java
Modified: httpcomponents/httpclient/trunk/httpclient/src/examples/org/apache/http/examples/client/ClientWithRequestFuture.java
URL: http://svn.apache.org/viewvc/httpcomponents/httpclient/trunk/httpclient/src/examples/org/apache/http/examples/client/ClientWithRequestFuture.java?rev=1483382&r1=1483381&r2=1483382&view=diff
==============================================================================
--- httpcomponents/httpclient/trunk/httpclient/src/examples/org/apache/http/examples/client/ClientWithRequestFuture.java (original)
+++ httpcomponents/httpclient/trunk/httpclient/src/examples/org/apache/http/examples/client/ClientWithRequestFuture.java Thu May 16 14:15:11 2013
@@ -53,78 +53,81 @@ public class ClientWithRequestFuture {
.setMaxConnPerRoute(5)
.setMaxConnTotal(5).build();
ExecutorService execService = Executors.newFixedThreadPool(5);
- FutureRequestExecutionService requestExecService = new FutureRequestExecutionService(httpclient, execService);
-
- // Because things are asynchronous, you must provide a ResponseHandler
- ResponseHandler<Boolean> handler = new ResponseHandler<Boolean>() {
- public Boolean handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
- // simply return true if the status was OK
- return response.getStatusLine().getStatusCode() == 200;
- }
- };
-
- // Simple request ...
- HttpGet request1 = new HttpGet("http://google.com");
- HttpRequestFutureTask<Boolean> futureTask1 = requestExecService.execute(request1,
- HttpClientContext.create(), handler);
- Boolean wasItOk1 = futureTask1.get();
- System.out.println("It was ok? " + wasItOk1);
-
- // Cancel a request
+ FutureRequestExecutionService requestExecService = new FutureRequestExecutionService(
+ httpclient, execService);
try {
- HttpGet request2 = new HttpGet("http://google.com");
- HttpRequestFutureTask<Boolean> futureTask2 = requestExecService.execute(request2,
+ // Because things are asynchronous, you must provide a ResponseHandler
+ ResponseHandler<Boolean> handler = new ResponseHandler<Boolean>() {
+ public Boolean handleResponse(HttpResponse response) throws ClientProtocolException, IOException {
+ // simply return true if the status was OK
+ return response.getStatusLine().getStatusCode() == 200;
+ }
+ };
+
+ // Simple request ...
+ HttpGet request1 = new HttpGet("http://google.com");
+ HttpRequestFutureTask<Boolean> futureTask1 = requestExecService.execute(request1,
HttpClientContext.create(), handler);
- futureTask2.cancel(true);
- Boolean wasItOk2 = futureTask2.get();
- System.out.println("It was cancelled so it should never print this: " + wasItOk2);
- } catch (CancellationException e) {
- System.out.println("We cancelled it, so this is expected");
- }
+ Boolean wasItOk1 = futureTask1.get();
+ System.out.println("It was ok? " + wasItOk1);
- // Request with a timeout
- HttpGet request3 = new HttpGet("http://google.com");
- HttpRequestFutureTask<Boolean> futureTask3 = requestExecService.execute(request3,
- HttpClientContext.create(), handler);
- Boolean wasItOk3 = futureTask3.get(10, TimeUnit.SECONDS);
- System.out.println("It was ok? " + wasItOk3);
-
- FutureCallback<Boolean> callback = new FutureCallback<Boolean>() {
- public void completed(Boolean result) {
- System.out.println("completed with " + result);
+ // Cancel a request
+ try {
+ HttpGet request2 = new HttpGet("http://google.com");
+ HttpRequestFutureTask<Boolean> futureTask2 = requestExecService.execute(request2,
+ HttpClientContext.create(), handler);
+ futureTask2.cancel(true);
+ Boolean wasItOk2 = futureTask2.get();
+ System.out.println("It was cancelled so it should never print this: " + wasItOk2);
+ } catch (CancellationException e) {
+ System.out.println("We cancelled it, so this is expected");
}
- public void failed(Exception ex) {
- System.out.println("failed with " + ex.getMessage());
- }
+ // Request with a timeout
+ HttpGet request3 = new HttpGet("http://google.com");
+ HttpRequestFutureTask<Boolean> futureTask3 = requestExecService.execute(request3,
+ HttpClientContext.create(), handler);
+ Boolean wasItOk3 = futureTask3.get(10, TimeUnit.SECONDS);
+ System.out.println("It was ok? " + wasItOk3);
- public void cancelled() {
- System.out.println("cancelled");
+ FutureCallback<Boolean> callback = new FutureCallback<Boolean>() {
+ public void completed(Boolean result) {
+ System.out.println("completed with " + result);
+ }
+
+ public void failed(Exception ex) {
+ System.out.println("failed with " + ex.getMessage());
+ }
+
+ public void cancelled() {
+ System.out.println("cancelled");
+ }
+ };
+
+ // Simple request with a callback
+ HttpGet request4 = new HttpGet("http://google.com");
+ // using a null HttpContext here since it is optional
+ // the callback will be called when the task completes, fails, or is cancelled
+ HttpRequestFutureTask<Boolean> futureTask4 = requestExecService.execute(request4,
+ HttpClientContext.create(), handler, callback);
+ Boolean wasItOk4 = futureTask4.get(10, TimeUnit.SECONDS);
+ System.out.println("It was ok? " + wasItOk4);
+
+ // Multiple requests, with a callback
+ HttpGet request5 = new HttpGet("http://google.com");
+ HttpGet request6 = new HttpGet("http://bing.com");
+ HttpGet request7 = new HttpGet("http://yahoo.com");
+ // using a null HttpContext here since it is optional
+ // the callback will be called for each request as their responses come back.
+ List<Future<Boolean>> futureTask = requestExecService.executeMultiple(
+ HttpClientContext.create(), handler, callback,
+ 20,TimeUnit.SECONDS, request5, request6, request7);
+ // you can still access the futures directly, if you want. The futures are in the same order as the requests.
+ for (Future<Boolean> future : futureTask) {
+ System.out.println("another result " + future.get());
}
- };
-
- // Simple request with a callback
- HttpGet request4 = new HttpGet("http://google.com");
- // using a null HttpContext here since it is optional
- // the callback will be called when the task completes, fails, or is cancelled
- HttpRequestFutureTask<Boolean> futureTask4 = requestExecService.execute(request4,
- HttpClientContext.create(), handler, callback);
- Boolean wasItOk4 = futureTask4.get(10, TimeUnit.SECONDS);
- System.out.println("It was ok? " + wasItOk4);
-
- // Multiple requests, with a callback
- HttpGet request5 = new HttpGet("http://google.com");
- HttpGet request6 = new HttpGet("http://bing.com");
- HttpGet request7 = new HttpGet("http://yahoo.com");
- // using a null HttpContext here since it is optional
- // the callback will be called for each request as their responses come back.
- List<Future<Boolean>> futureTask = requestExecService.executeMultiple(
- HttpClientContext.create(), handler, callback,
- 20,TimeUnit.SECONDS, request5, request6, request7);
- // you can still access the futures directly, if you want. The futures are in the same order as the requests.
- for (Future<Boolean> future : futureTask) {
- System.out.println("another result " + future.get());
+ } finally {
+ requestExecService.close();
}
}
-
}
\ No newline at end of file