/*
* Copyright (c) MuleSoft, Inc. All rights reserved. http://www.mulesoft.com
* The software in this package is published under the terms of the CPAL v1.0
* license, a copy of which has been included with this distribution in the
* LICENSE.txt file.
*/
package org.mule.config.spring.factories;
import org.mule.api.MuleContext;
import org.mule.api.context.MuleContextAware;
import org.mule.api.processor.MessageProcessor;
import org.mule.api.processor.MessageProcessorBuilder;
import org.mule.api.processor.MessageProcessorChainBuilder;
import org.mule.api.routing.filter.Filter;
import org.mule.processor.chain.DefaultMessageProcessorChainBuilder;
import org.mule.routing.MessageProcessorFilterPair;
import org.mule.routing.filters.AcceptAllFilter;
import org.mule.routing.filters.ExpressionFilter;
import java.util.List;
import org.springframework.beans.factory.FactoryBean;
public class MessageProcessorFilterPairFactoryBean implements FactoryBean<MessageProcessorFilterPair>,
MuleContextAware
{
private List<MessageProcessor> messageProcessors;
private Filter filter = new ExpressionFilter();
public void setFilter(Filter filter)
{
this.filter = filter;
}
public void setMessageProcessors(List<MessageProcessor> messageProcessors)
{
this.messageProcessors = messageProcessors;
}
public void setExpression(String expression)
{
((ExpressionFilter) filter).setExpression(expression);
}
public void setEvaluator(String evaluator)
{
((ExpressionFilter) filter).setEvaluator(evaluator);
}
public void setCustomEvaluator(String customEvaluator)
{
((ExpressionFilter) filter).setCustomEvaluator(customEvaluator);
}
@Override
public MessageProcessorFilterPair getObject() throws Exception
{
MessageProcessorChainBuilder builder = new DefaultMessageProcessorChainBuilder();
for (Object processor : messageProcessors)
{
if (processor instanceof MessageProcessor)
{
builder.chain((MessageProcessor) processor);
}
else if (processor instanceof MessageProcessorBuilder)
{
builder.chain((MessageProcessorBuilder) processor);
}
else
{
throw new IllegalArgumentException(
"MessageProcessorBuilder should only have MessageProcessors or MessageProcessorBuilders configured");
}
}
return createFilterPair(builder);
}
private MessageProcessorFilterPair createFilterPair(MessageProcessorChainBuilder builder) throws Exception
{
if (filter == null)
{
return new MessageProcessorFilterPair(builder.build(), AcceptAllFilter.INSTANCE);
}
else
{
return new MessageProcessorFilterPair(builder.build(), filter);
}
}
@Override
public Class<MessageProcessorFilterPair> getObjectType()
{
return MessageProcessorFilterPair.class;
}
@Override
public boolean isSingleton()
{
return true;
}
@Override
public void setMuleContext(MuleContext context)
{
if (filter != null && filter instanceof MuleContextAware)
{
((MuleContextAware) filter).setMuleContext(context);
}
}
}