Example usage for org.springframework.amqp.core MessageProperties SPRING_AUTO_DECOMPRESS

Introduction

In this page you can find the example usage for org.springframework.amqp.core MessageProperties SPRING_AUTO_DECOMPRESS.

Prototype

String SPRING_AUTO_DECOMPRESS

To view the source code for org.springframework.amqp.core MessageProperties SPRING_AUTO_DECOMPRESS.

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Usage

From source file:org.springframework.amqp.support.postprocessor.AbstractCompressingPostProcessor.java

@Override
public Message postProcessMessage(Message message) throws AmqpException {
    ByteArrayOutputStream zipped = new ByteArrayOutputStream();
    try {/*from www .j  av  a2s  . c  o  m*/
        OutputStream zipper = getCompressorStream(zipped);
        FileCopyUtils.copy(new ByteArrayInputStream(message.getBody()), zipper);
        MessageProperties messageProperties = message.getMessageProperties();
        String currentEncoding = messageProperties.getContentEncoding();
        messageProperties
                .setContentEncoding(getEncoding() + (currentEncoding == null ? "" : ":" + currentEncoding));
        if (this.autoDecompress) {
            messageProperties.setHeader(MessageProperties.SPRING_AUTO_DECOMPRESS, true);
        }
        byte[] compressed = zipped.toByteArray();
        if (this.logger.isTraceEnabled()) {
            this.logger.trace("Compressed " + message.getBody().length + " to " + compressed.length);
        }
        return new Message(compressed, messageProperties);
    } catch (IOException e) {
        throw new AmqpIOException(e);
    }
}

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