diff options
Diffstat (limited to 'qpid/java/client/src/main/java/org/apache/qpid/nclient/util/MessagePartListenerAdapter.java')
-rw-r--r-- | qpid/java/client/src/main/java/org/apache/qpid/nclient/util/MessagePartListenerAdapter.java | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/nclient/util/MessagePartListenerAdapter.java b/qpid/java/client/src/main/java/org/apache/qpid/nclient/util/MessagePartListenerAdapter.java new file mode 100644 index 0000000000..10fd8d2a80 --- /dev/null +++ b/qpid/java/client/src/main/java/org/apache/qpid/nclient/util/MessagePartListenerAdapter.java @@ -0,0 +1,88 @@ +package org.apache.qpid.nclient.util; +/* + * + * 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. + * + */ + + +import java.io.IOException; +import java.nio.ByteBuffer; + +import org.apache.qpid.transport.*; +import org.apache.qpid.nclient.MessagePartListener; + +/** + * This is a simple message assembler. + * Will call onMessage method of the adaptee + * when all message data is read. + * + * This is a good convinience utility for handling + * small messages + */ +public class MessagePartListenerAdapter implements MessagePartListener +{ + MessageListener _adaptee; + ByteBufferMessage _currentMsg; + + public MessagePartListenerAdapter(MessageListener listener) + { + _adaptee = listener; + } + + public void messageTransfer(MessageTransfer xfr) + { + _currentMsg = new ByteBufferMessage(xfr.getId()); + + for (Struct st : xfr.getHeader().getStructs()) + { + if(st instanceof DeliveryProperties) + { + _currentMsg.setDeliveryProperties((DeliveryProperties)st); + + } + else if(st instanceof MessageProperties) + { + _currentMsg.setMessageProperties((MessageProperties)st); + } + + } + + + ByteBuffer body = xfr.getBody(); + if (body == null) + { + body = ByteBuffer.allocate(0); + } + + + try + { + _currentMsg.appendData(body); + } + catch(IOException e) + { + // A chance for IO exception + // doesn't occur as we are using + // a ByteBuffer + } + + _adaptee.onMessage(_currentMsg); + } + +} |