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INT-3290 Fix TCP Deserializer for 0 Length Message

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ByteArraySingleTerminatorSerializer does not support multiple
subsequent terminators (zero length messages).

JIRA: https://jira.springsource.org/browse/INT-3290

* Add unit test to verify bug.
* Fix bug.

Polishing:

* Remove test for `n >= 0`; n cannot be < 0 here
* Move test case to `DeserializationTests`

Conflicts:

	spring-integration-ip/src/test/java/org/springframework/integration/ip/tcp/serializer/DeserializationTests.java

Resolved.
This commit is contained in:
Gavin Gray
2014-02-07 12:46:16 -05:00
committed by Gary Russell
parent 1dbe351630
commit 16476aac97
2 changed files with 24 additions and 4 deletions
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5
spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/serializer/ByteArraySingleTerminatorSerializer.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2010 the original author or authors.
* Copyright 2002-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -51,12 +51,11 @@ public class ByteArraySingleTerminatorSerializer extends AbstractByteArraySerial
}
while (true) {
bite = inputStream.read();
// logger.debug("Read:" + (char) bite);
if (bite < 0 && n == 0) {
throw new SoftEndOfStreamException("Stream closed between payloads");
}
checkClosure(bite);
if (n > 0 && bite == terminator) {
if (bite == terminator) {
break;
}
buffer[n++] = (byte) bite;

23
spring-integration-ip/src/test/java/org/springframework/integration/ip/tcp/serializer/DeserializationTests.java
View File

@@ -1,5 +1,5 @@
/*
* Copyright 2002-2012 the original author or authors.
* Copyright 2002-2014 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@ package org.springframework.integration.ip.tcp.serializer;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
@@ -26,12 +27,14 @@ import java.net.Socket;
import javax.net.ServerSocketFactory;
import org.junit.Test;
import org.springframework.core.serializer.DefaultDeserializer;
import org.springframework.integration.ip.util.SocketTestUtils;
import org.springframework.integration.test.util.SocketUtils;
/**
* @author Gary Russell
* @author Gavin Gray
* @since 2.0
*/
public class DeserializationTests {
@@ -228,4 +231,22 @@ public class DeserializationTests {
server.close();
}
@Test
public void canDeserializeMultipleSubsequentTerminators() throws IOException {
byte terminator = (byte) '\n';
ByteArraySingleTerminatorSerializer serializer = new ByteArraySingleTerminatorSerializer(terminator);
ByteArrayInputStream inputStream = new ByteArrayInputStream("s\n\n".getBytes());
try {
byte[] bytes = serializer.deserialize(inputStream);
assertEquals(1, bytes.length);
assertEquals("s".getBytes()[0], bytes[0]);
bytes = serializer.deserialize(inputStream);
assertEquals(0, bytes.length);
}
finally {
inputStream.close();
}
}
}