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new ae200c9 CAMEL-13092: Added unit test
ae200c9 is described below
commit ae200c903f6633a1a30b27cd908647548932d255
Author: Claus Ibsen <claus.ib...@gmail.com>
AuthorDate: Tue Mar 23 19:04:51 2021 +0100
CAMEL-13092: Added unit test
---
.../servlet/ServletStreamingChunkedTest.java | 138 +++++++++++++++++++++
1 file changed, 138 insertions(+)
diff --git
a/components/camel-servlet/src/test/java/org/apache/camel/component/servlet/ServletStreamingChunkedTest.java
b/components/camel-servlet/src/test/java/org/apache/camel/component/servlet/ServletStreamingChunkedTest.java
new file mode 100644
index 0000000..040518f
--- /dev/null
+++
b/components/camel-servlet/src/test/java/org/apache/camel/component/servlet/ServletStreamingChunkedTest.java
@@ -0,0 +1,138 @@
+/*
+ * 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.
+ */
+package org.apache.camel.component.servlet;
+
+import java.io.InputStream;
+import java.io.PipedInputStream;
+import java.io.PipedOutputStream;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.camel.Exchange;
+import org.apache.camel.builder.RouteBuilder;
+import org.apache.camel.util.IOHelper;
+import org.junit.jupiter.api.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+
+public class ServletStreamingChunkedTest extends ServletCamelRouterTestSupport
{
+
+ private static final Logger LOG =
LoggerFactory.getLogger(ServletStreamingChunkedTest.class);
+
+ private PipedOutputStream pos = new PipedOutputStream();
+ private PipedInputStream pis;
+
+ @Test
+ public void testStreaming() throws Exception {
+
+ final CountDownLatch latch1 = new CountDownLatch(1);
+ final CountDownLatch latch2 = new CountDownLatch(1);
+
+ // use background thread to write to stream that camel-servlet uses as
reponse
+ context.getExecutorServiceManager().newSingleThreadExecutor(this,
"writer").execute(() -> {
+ try {
+ LOG.info(">>>> sleeping <<<<");
+ Thread.sleep(500);
+ LOG.info(">>>> writing <<<<");
+ pos.write("ABC".getBytes());
+ pos.flush();
+
+ latch1.await(5, TimeUnit.SECONDS);
+ LOG.info(">>>> sleeping <<<<");
+ Thread.sleep(500);
+ LOG.info(">>>> writing <<<<");
+ pos.write("DEF".getBytes());
+ pos.flush();
+
+ latch2.await(5, TimeUnit.SECONDS);
+ LOG.info(">>>> sleeping <<<<");
+ Thread.sleep(500);
+ LOG.info(">>>> writing <<<<");
+ pos.write("GHI".getBytes());
+ pos.flush();
+
+ } catch (Exception e) {
+ // ignore
+ } finally {
+ LOG.info(">>>> closing <<<<");
+ IOHelper.close(pos);
+ }
+ });
+
+ LOG.info(">>>> calling <<<<");
+ WebRequest req = new GetMethodWebRequest(contextUrl +
"/services/hello");
+ WebResponse response = query(req);
+ LOG.info(">>>> response <<<<");
+
+ assertEquals(200, response.getResponseCode());
+ assertEquals("chunked",
response.getHeaderField(Exchange.TRANSFER_ENCODING));
+
+ InputStream is = response.getInputStream();
+ assertNotNull(is);
+ LOG.info(">>>> reading chunk1 <<<<");
+ int ch1 = is.read();
+ int ch2 = is.read();
+ int ch3 = is.read();
+ LOG.info(">>>> reading chunk1 complete <<<<");
+ assertEquals('A', ch1);
+ assertEquals('B', ch2);
+ assertEquals('C', ch3);
+
+ latch1.countDown();
+
+ LOG.info(">>>> reading chunk2 <<<<");
+ int ch4 = is.read();
+ int ch5 = is.read();
+ int ch6 = is.read();
+ LOG.info(">>>> reading chunk2 complete <<<<");
+ assertEquals('D', ch4);
+ assertEquals('E', ch5);
+ assertEquals('F', ch6);
+
+ latch2.countDown();
+
+ LOG.info(">>>> reading chunk3 <<<<");
+ int ch7 = is.read();
+ int ch8 = is.read();
+ int ch9 = is.read();
+ LOG.info(">>>> reading chunk3 complete <<<<");
+ assertEquals('G', ch7);
+ assertEquals('H', ch8);
+ assertEquals('I', ch9);
+
+ int end = is.read();
+ LOG.info(">>>> reading EOS <<<<");
+ assertEquals(-1, end);
+ }
+
+ @Override
+ protected RouteBuilder createRouteBuilder() throws Exception {
+ return new RouteBuilder() {
+ @Override
+ public void configure() throws Exception {
+ pis = new PipedInputStream(pos);
+
+ from("servlet:/hello")
+ .setBody().constant(pis);
+ }
+ };
+ }
+
+}
