tabish121 commented on code in PR #979:
URL: https://github.com/apache/activemq/pull/979#discussion_r1108626647
##########
activemq-client/src/main/java/org/apache/activemq/command/ActiveMQBytesMessage.java:
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@@ -956,4 +956,22 @@ protected void doCompress() throws IOException {
}
}
}
+
+ @Override
+ @SuppressWarnings("unchecked")
+ public boolean isBodyAssignableTo(Class c) {
+ return getContent() == null || c.isAssignableFrom(byte[].class);
+ }
+
+ @SuppressWarnings("unchecked")
+ protected <T> T doGetBody(Class<T> asType) {
+ //Make sure the bytes are stored before trying to copy and return
+ if (dataOut != null && getContent() == null) {
+ storeContent();
+ }
+
+ final ByteSequence content = getContent();
+ return content != null ? (T) new ByteSequence(content.getData(),
content.getOffset(),
+ content.getLength()).getData() : null;
Review Comment:
This isn't a deep copy from what I see in the ByteSequence code, just a
shallow wrapping of the array, plus it creates a new ByteSequence that would
never actually be used so needless GC. I'd just do an Arrays.copyOfRange on
the data in the original since you want t deep copy here to avoid the caller
modifying the bytes in the message content as you want to get the same payload
on a rollback / recover etc.
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