Example usage for org.springframework.amqp.support.converter DefaultClassMapper DEFAULT_CLASSID_FIELD_NAME

Introduction

In this page you can find the example usage for org.springframework.amqp.support.converter DefaultClassMapper DEFAULT_CLASSID_FIELD_NAME.

Prototype

String DEFAULT_CLASSID_FIELD_NAME

To view the source code for org.springframework.amqp.support.converter DefaultClassMapper DEFAULT_CLASSID_FIELD_NAME.

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Usage

From source file:amqp.spring.converter.XStreamConverter.java

@Override
protected Message createMessage(Object object, MessageProperties messageProperties) {
    try {/*from   w  w  w .jav a  2s.c o  m*/
        byte[] body = null;
        if (object != null) {
            ByteArrayOutputStream outStream = new ByteArrayOutputStream();
            StaxWriter writer = new StaxWriter(new QNameMap(),
                    this.outputFactory.createXMLStreamWriter(outStream));
            this.objectMapper.marshal(object, writer);
            body = outStream.toByteArray();
        }

        messageProperties.setContentType(MessageProperties.CONTENT_TYPE_JSON);
        messageProperties.setContentEncoding(this.encoding);
        messageProperties.setContentLength(body != null ? body.length : 0);
        classMapper.fromClass(object.getClass(), messageProperties);
        return new Message(body, messageProperties);
    } catch (XMLStreamException ex) {
        String typeId = (String) messageProperties.getHeaders()
                .get(DefaultClassMapper.DEFAULT_CLASSID_FIELD_NAME);
        LOG.error("XMLStreamException trying to marshal message of type {}", typeId, ex);
        throw new MessageConversionException("Could not marshal message of type " + typeId, ex);
    } catch (XStreamException ex) {
        //For some reason messages appear to be getting eaten at this stage... very nasty when you try to troubleshoot.
        String typeId = (String) messageProperties.getHeaders()
                .get(DefaultClassMapper.DEFAULT_CLASSID_FIELD_NAME);
        LOG.error("XStreamException trying to marshal message of type {}", typeId, ex);
        throw new MessageConversionException("Could not marshal message of type " + typeId, ex);
    }
}

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From source file:amqp.spring.converter.XStreamConverter.java

@Override
public Object fromMessage(Message message) throws MessageConversionException {
    MessageProperties messageProperties = message.getMessageProperties();
    if (messageProperties == null)
        throw new MessageConversionException("Cannot decode a message with no properties!");

    byte[] body = message.getBody();
    if (body == null)
        return null;

    String messageEncoding = messageProperties.getContentEncoding();
    if (messageEncoding == null)
        messageEncoding = getEncoding();

    String contentType = messageProperties.getContentType();
    if (!MessageProperties.CONTENT_TYPE_JSON.equalsIgnoreCase(contentType))
        throw new MessageConversionException("Cannot understand a message of type " + contentType);

    try {//from w  w  w . j  av a2 s.co  m
        ByteArrayInputStream inStream = new ByteArrayInputStream(body);
        StaxReader reader = new StaxReader(new QNameMap(),
                this.inputFactory.createXMLStreamReader(inStream, messageEncoding));
        return this.objectMapper.unmarshal(reader);
    } catch (XMLStreamException ex) {
        String typeId = (String) messageProperties.getHeaders()
                .get(DefaultClassMapper.DEFAULT_CLASSID_FIELD_NAME);
        LOG.error("XMLStreamException trying to unmarshal message of type {}", typeId, ex);
        throw new MessageConversionException("Could not unmarshal message of type " + typeId, ex);
    } catch (XStreamException ex) {
        //For some reason messages appear to be getting eaten at this stage... very nasty when you try to troubleshoot.
        String typeId = (String) messageProperties.getHeaders()
                .get(DefaultClassMapper.DEFAULT_CLASSID_FIELD_NAME);
        LOG.error("XStreamException trying to unmarshal message of type {}", typeId, ex);
        throw new MessageConversionException("Could not unmarshal message of type " + typeId, ex);
    }
}

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