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package org.apache.camel.spring.spi; |
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import org.apache.camel.Exchange; |
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import org.apache.camel.RuntimeCamelException; |
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import org.apache.camel.processor.DelegateProcessor; |
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
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import org.springframework.transaction.TransactionDefinition; |
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import org.springframework.transaction.TransactionStatus; |
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import org.springframework.transaction.support.TransactionCallbackWithoutResult; |
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import org.springframework.transaction.support.TransactionTemplate; |
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public class TransactionInterceptor extends DelegateProcessor { |
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private static final transient Log LOG = LogFactory.getLog(TransactionInterceptor.class); |
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private final TransactionTemplate transactionTemplate; |
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public TransactionInterceptor(TransactionTemplate transactionTemplate) { |
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this.transactionTemplate = transactionTemplate; |
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} |
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public void process(final Exchange exchange) { |
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LOG.info("transaction begin"); |
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transactionTemplate.execute(new TransactionCallbackWithoutResult() { |
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protected void doInTransactionWithoutResult(TransactionStatus status) { |
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try { |
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processNext(exchange); |
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} catch (Exception e) { |
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throw new RuntimeCamelException(e); |
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} |
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} |
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}); |
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LOG.info("transaction commit"); |
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} |
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@Override |
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public String toString() { |
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return "TransactionInterceptor:" + propagationBehaviorToString(transactionTemplate.getPropagationBehavior()) + "[" + getProcessor() + "]"; |
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} |
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private String propagationBehaviorToString(int propagationBehavior) { |
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String rc; |
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switch (propagationBehavior) { |
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case TransactionDefinition.PROPAGATION_MANDATORY: |
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rc = "PROPAGATION_MANDATORY"; |
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break; |
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case TransactionDefinition.PROPAGATION_NESTED: |
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rc = "PROPAGATION_NESTED"; |
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break; |
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case TransactionDefinition.PROPAGATION_NEVER: |
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rc = "PROPAGATION_NEVER"; |
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break; |
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case TransactionDefinition.PROPAGATION_NOT_SUPPORTED: |
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rc = "PROPAGATION_NOT_SUPPORTED"; |
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break; |
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case TransactionDefinition.PROPAGATION_REQUIRED: |
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rc = "PROPAGATION_REQUIRED"; |
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break; |
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case TransactionDefinition.PROPAGATION_REQUIRES_NEW: |
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rc = "PROPAGATION_REQUIRES_NEW"; |
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break; |
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case TransactionDefinition.PROPAGATION_SUPPORTS: |
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rc = "PROPAGATION_SUPPORTS"; |
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break; |
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default: |
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rc = "UNKOWN"; |
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} |
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return rc; |
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} |
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} |