Example usage for javax.jms BytesMessage getJMSType

Introduction

In this page you can find the example usage for javax.jms BytesMessage getJMSType.

Prototype

String getJMSType() throws JMSException;

Source Link

Document

Gets the message type identifier supplied by the client when the message was sent.

Usage

From source file:org.bremersee.common.jms.DefaultJmsConverter.java

private Object tryToGetPayload(BytesMessage msg, Class<?> payloadClass) throws JMSException {
    int len;/*www .  ja  va 2s  . c  om*/
    byte[] buf = new byte[1024];
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    while ((len = msg.readBytes(buf)) != -1) {
        out.write(buf, 0, len);
    }
    byte[] payloadBytes = out.toByteArray();
    if (payloadBytes == null || payloadBytes.length == 0) {
        return null;
    }

    Object payload = null;
    if (shouldTryJson(payloadClass, payloadBytes)) {
        try {
            payload = objectMapper.readValue(payloadBytes, payloadClass);

        } catch (Throwable t0) { // NOSONAR
            log.info("Reading JSON from message with JMSType [" + msg.getJMSType() + "] failed.");
        }
    }

    if (shouldTryUnmarshal(payload, payloadClass)) {
        try {
            payload = marshaller.unmarshal(new StreamSource(new ByteArrayInputStream(payloadBytes)));

        } catch (Throwable t0) { // NOSONAR
            log.info("Reading XML from message with JMSType [" + msg.getJMSType() + "] failed.");
        }
    }

    if (shouldTryDeserialize(payload, payloadClass)) {
        try {
            ObjectInputStream objectInputStream = new ObjectInputStream(new ByteArrayInputStream(payloadBytes));
            payload = objectInputStream.readObject();

        } catch (Throwable t0) { // NOSONAR
            log.info("Reading serialized object of JMSType [" + msg.getJMSType() + "] failed.");
        }
    }

    if (payload == null) {
        MessageConversionException e = new MessageConversionException("Converting BytesMessage failed.");
        log.error("Could not convert bytes:\n" + Base64.encodeBase64String(payloadBytes) + "\n", e);
        throw e;
    }

    return payload;
}

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