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Diffstat (limited to 'sca-java-1.x/branches/sca-java-1.2.1/modules/binding-notification/src/main/java/org/apache/tuscany/sca/binding/notification/encoding/AbstractBrokerEnDeCoder.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-1.2.1/modules/binding-notification/src/main/java/org/apache/tuscany/sca/binding/notification/encoding/AbstractBrokerEnDeCoder.java | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-1.2.1/modules/binding-notification/src/main/java/org/apache/tuscany/sca/binding/notification/encoding/AbstractBrokerEnDeCoder.java b/sca-java-1.x/branches/sca-java-1.2.1/modules/binding-notification/src/main/java/org/apache/tuscany/sca/binding/notification/encoding/AbstractBrokerEnDeCoder.java new file mode 100644 index 0000000000..8dc5be9b16 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-1.2.1/modules/binding-notification/src/main/java/org/apache/tuscany/sca/binding/notification/encoding/AbstractBrokerEnDeCoder.java @@ -0,0 +1,88 @@ +/* + * 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. + */ +package org.apache.tuscany.sca.binding.notification.encoding; + +import static javax.xml.stream.XMLStreamConstants.END_ELEMENT; +import static javax.xml.stream.XMLStreamConstants.START_ELEMENT; + +import javax.xml.namespace.QName; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; +import javax.xml.stream.XMLStreamWriter; + +/** + * @version $Rev$ $Date$ + */ +public abstract class AbstractBrokerEnDeCoder<B extends AbstractBroker> extends AbstractEnDeCoder<B> { + + public AbstractBrokerEnDeCoder(EncodingRegistry registry) { + super(registry); + } + + public void encode(B encodingObject, XMLStreamWriter writer) throws EncodingException { + + try { + QName qName = getEncodingObjectQName(); + writer.writeStartElement(Constants.NOTIFICATION_PREFIX, qName.getLocalPart(), qName.getNamespaceURI()); + writer.writeNamespace(Constants.NOTIFICATION_PREFIX, qName.getNamespaceURI()); + registry.encode(encodingObject.getBrokerConsumerReference(), writer); + registry.encode(encodingObject.getBrokerProducerReference(), writer); + writer.writeEndElement(); + } catch(XMLStreamException e) { + throw new EncodingException(e); + } + } + + public B decode(XMLStreamReader reader) throws EncodingException { + + try { + B brokerElement = getEncodingObjectType().newInstance(); + boolean haveBCR = false; + boolean haveBPR = false; + while (true) { + switch (reader.next()) { + case START_ELEMENT: + EncodingObject encodingObject = registry.decode(reader); + if (encodingObject instanceof BrokerConsumerReference && !haveBCR) { + brokerElement.setBrokerConsumerReference((BrokerConsumerReference)encodingObject); + haveBCR = true; + } + else if(encodingObject instanceof BrokerProducerReference && !haveBPR) { + brokerElement.setBrokerProducerReference((BrokerProducerReference)encodingObject); + haveBPR = true; + } + else { + throw new EncodingException("Invalid encoding object"); + } + break; + case END_ELEMENT: + if (!haveBCR) { + throw new EncodingException("Missing broker consumer reference"); + } + if (!haveBPR) { + throw new EncodingException("Missing broker producer reference"); + } + return brokerElement; + } + } + } catch (Exception ex) { + throw new EncodingException(ex); + } + } +} |