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apply patch (with modification to fix a null pointer violation case) fixes: https://issues.apache.org/activemq/browse/AMQ-2990 

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@1025620 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Timothy A. Bish 2010-10-20 15:48:56 +00:00
parent 7055fb98c4
commit a60eeaa7ae
1 changed files with 19 additions and 2 deletions
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21
activemq-core/src/main/java/org/apache/activemq/ActiveMQOutputStream.java
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@ -38,10 +38,9 @@ import org.apache.activemq.util.IOExceptionSupport;
*/
public class ActiveMQOutputStream extends OutputStream implements Disposable {
// Send down 64k messages.
protected int count;
final byte buffer[] = new byte[64 * 1024];
final byte buffer[];
private final ActiveMQConnection connection;
private final Map<String, Object> properties;
@ -53,6 +52,11 @@ public class ActiveMQOutputStream extends OutputStream implements Disposable {
private final int priority;
private final long timeToLive;
/**
* JMS Property which is used to specify the size (in kb) which is used as chunk size when splitting the stream. Default is 64kb
*/
public final static String AMQ_STREAM_CHUNK_SIZE = "AMQ_STREAM_CHUNK_SIZE";
public ActiveMQOutputStream(ActiveMQConnection connection, ProducerId producerId, ActiveMQDestination destination, Map<String, Object> properties, int deliveryMode, int priority,
long timeToLive) throws JMSException {
this.connection = connection;
@ -61,6 +65,19 @@ public class ActiveMQOutputStream extends OutputStream implements Disposable {
this.timeToLive = timeToLive;
this.properties = properties == null ? null : new HashMap<String, Object>(properties);
Integer chunkSize = this.properties == null ? null : (Integer) this.properties.get(AMQ_STREAM_CHUNK_SIZE);
if (chunkSize == null) {
chunkSize = 64 * 1024;
} else {
if (chunkSize < 1) {
throw new IllegalArgumentException("Chunk size must be greater then 0");
} else {
chunkSize *= 1024;
}
}
buffer = new byte[chunkSize];
if (destination == null) {
throw new InvalidDestinationException("Don't understand null destinations");
}