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INTSAMPLES-76 - Wait for Server to Start

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before attempting to connect.
This commit is contained in:
Gunnar Hillert
2012-05-16 23:11:39 -04:00
committed by Gary Russell
parent f9f8fc5030
commit a1964402ef
1 changed files with 77 additions and 54 deletions
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131
basic/tcp-client-server/src/test/java/org/springframework/integration/samples/tcpclientserver/TcpServerCustomSerializerTest.java
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@@ -26,6 +26,7 @@ import java.io.OutputStreamWriter;
import java.io.Writer;
import java.net.Socket;
import org.apache.log4j.Logger;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
@@ -35,6 +36,7 @@ import org.springframework.integration.Message;
import org.springframework.integration.MessageChannel;
import org.springframework.integration.core.SubscribableChannel;
import org.springframework.integration.handler.AbstractReplyProducingMessageHandler;
import org.springframework.integration.ip.tcp.connection.AbstractServerConnectionFactory;
import org.springframework.integration.samples.tcpclientserver.support.CustomTestContextLoader;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.context.ContextConfiguration;
@@ -46,7 +48,9 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
* the Java socket API on the front end (client) and the Spring Integration TCP inbound
* gateway with the custom serializer/deserializers.
*
* @author: ceposta
* @author ceposta
* @author Gunnar Hillert
*
*/
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(loader=CustomTestContextLoader.class,
@@ -54,73 +58,92 @@ import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@DirtiesContext
public class TcpServerCustomSerializerTest {
@Autowired
@Qualifier("incomingServerChannel")
MessageChannel incomingServerChannel;
private static final Logger LOGGER = Logger.getLogger(TcpServerCustomSerializerTest.class);
@Autowired
@Qualifier("incomingServerChannel")
MessageChannel incomingServerChannel;
@Value("${availableServerSocket}")
int availableServerSocket;
@Test
public void testHappyPath() {
@Autowired
AbstractServerConnectionFactory serverConnectionFactory;
// add a listener to this channel, otherwise there is not one defined
// the reason we use a listener here is so we can assert truths on the
// message and/or payload
SubscribableChannel channel = (SubscribableChannel) incomingServerChannel;
channel.subscribe(new AbstractReplyProducingMessageHandler(){
@Test
public void testHappyPath() {
@Override
protected Object handleRequestMessage(Message<?> requestMessage) {
CustomOrder payload = (CustomOrder) requestMessage.getPayload();
// add a listener to this channel, otherwise there is not one defined
// the reason we use a listener here is so we can assert truths on the
// message and/or payload
SubscribableChannel channel = (SubscribableChannel) incomingServerChannel;
channel.subscribe(new AbstractReplyProducingMessageHandler(){
// we assert during the processing of the messaging that the
// payload is just the content we wanted to send without the
// framing bytes (STX/ETX)
assertEquals(123, payload.getNumber());
assertEquals("PINGPONG02", payload.getSender());
assertEquals("You got it to work!", payload.getMessage());
return requestMessage;
}
});
@Override
protected Object handleRequestMessage(Message<?> requestMessage) {
CustomOrder payload = (CustomOrder) requestMessage.getPayload();
String sourceMessage = "123PINGPONG02000019You got it to work!";
// we assert during the processing of the messaging that the
// payload is just the content we wanted to send without the
// framing bytes (STX/ETX)
assertEquals(123, payload.getNumber());
assertEquals("PINGPONG02", payload.getSender());
assertEquals("You got it to work!", payload.getMessage());
return requestMessage;
}
});
String sourceMessage = "123PINGPONG02000019You got it to work!";
// use the java socket API to make the connection to the server
Socket socket = null;
Writer out = null;
BufferedReader in = null;
try {
socket = new Socket("localhost", availableServerSocket);
out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
out.write(sourceMessage);
out.flush();
// use the java socket API to make the connection to the server
Socket socket = null;
Writer out = null;
BufferedReader in = null;
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
StringBuffer str = new StringBuffer();
int n = 0;
while (!serverConnectionFactory.isListening()) {
int c;
while ((c = in.read()) != -1) {
str.append((char) c);
}
try {
Thread.sleep(100);
} catch (InterruptedException e1) {
throw new IllegalStateException(e1);
}
String response = str.toString();
assertEquals(sourceMessage, response);
if (n++ > 100) {
fail("Server didn't begin listening.");
}
}
} catch (IOException e) {
fail("Test ended with an exception " + e.getMessage());
}
finally {
try {
socket.close();
out.close();
in.close();
try {
socket = new Socket("localhost", availableServerSocket);
out = new BufferedWriter(new OutputStreamWriter(socket.getOutputStream()));
out.write(sourceMessage);
out.flush();
} catch (Exception e) {
// swallow exception
}
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
StringBuffer str = new StringBuffer();
}
}
int c;
while ((c = in.read()) != -1) {
str.append((char) c);
}
String response = str.toString();
assertEquals(sourceMessage, response);
} catch (IOException e) {
LOGGER.error(e.getMessage(), e);
fail(String.format("Test (port: %s) ended with an exception: %s", availableServerSocket, e.getMessage()));
} finally {
try {
socket.close();
out.close();
in.close();
} catch (Exception e) {
// swallow exception
}
}
}
}