package io.undertow.server.handlers.caching;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.handlers.cache.CacheHandler;
import io.undertow.server.handlers.cache.DirectBufferCache;
import io.undertow.server.handlers.cache.ResponseCache;
import io.undertow.testutils.DefaultServer;
import io.undertow.testutils.HttpClientUtils;
import io.undertow.util.Headers;
import io.undertow.testutils.TestHttpClient;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
/**
* Tests out the caching handler
*
*
* @author Stuart Douglas
*/
@RunWith(DefaultServer.class)
public class CacheHandlerTestCase {
private static final AtomicInteger responseCount = new AtomicInteger();
@BeforeClass
public static void setup() {
final HttpHandler messageHandler = new HttpHandler() {
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
final ResponseCache cache = exchange.getAttachment(ResponseCache.ATTACHMENT_KEY);
if(!cache.tryServeResponse()) {
final String data = "Response " + responseCount.incrementAndGet();
exchange.getResponseHeaders().put(Headers.CONTENT_LENGTH, data.length() + "");
exchange.getResponseSender().send(data);
}
}
};
final CacheHandler cacheHandler = new CacheHandler(new DirectBufferCache(100, 10, 1000), messageHandler);
DefaultServer.setRootHandler(cacheHandler);
}
@Test
public void testBasicPathBasedCaching() throws IOException {
TestHttpClient client = new TestHttpClient();
try {
HttpGet get = new HttpGet(DefaultServer.getDefaultServerURL() + "/path");
//it takes 5 hits to make an entry actually get cached
for (int i = 1; i <= 5; ++i) {
HttpResponse result = client.execute(get);
Assert.assertEquals(200, result.getStatusLine().getStatusCode());
Assert.assertEquals("Response " + i, HttpClientUtils.readResponse(result));
}
HttpResponse result = client.execute(get);
Assert.assertEquals(200, result.getStatusLine().getStatusCode());
Assert.assertEquals("Response 5", HttpClientUtils.readResponse(result));
result = client.execute(get);
Assert.assertEquals(200, result.getStatusLine().getStatusCode());
Assert.assertEquals("Response 5", HttpClientUtils.readResponse(result));
result = client.execute(get);
Assert.assertEquals(200, result.getStatusLine().getStatusCode());
Assert.assertEquals("Response 5", HttpClientUtils.readResponse(result));
get = new HttpGet(DefaultServer.getDefaultServerURL() + "/path2");
result = client.execute(get);
Assert.assertEquals(200, result.getStatusLine().getStatusCode());
Assert.assertEquals("Response 6", HttpClientUtils.readResponse(result));
} finally {
client.getConnectionManager().shutdown();
}
}
}