ro.isdc.wro.model.resource.processor.decorator
Class DefaultProcessorDecorator

java.lang.Object
  ro.isdc.wro.util.AbstractDecorator<T>
      ro.isdc.wro.model.resource.processor.decorator.AbstractProcessorDecoratorSupport<ResourcePreProcessor>
          ro.isdc.wro.model.resource.processor.decorator.ProcessorDecorator
              ro.isdc.wro.model.resource.processor.decorator.DefaultProcessorDecorator

All Implemented Interfaces:

ImportAware, MinimizeAware, ResourcePostProcessor, ResourcePreProcessor, SupportAware, SupportedResourceTypeAware, ObjectDecorator<ResourcePreProcessor>

public class DefaultProcessorDecorator
extends ProcessorDecorator

Decorates the processor with a set of common useful decorators during each processing.

Since:

1.6.0

Author:

Alex Objelean

Constructor Summary

DefaultProcessorDecorator(Object processor, boolean minimize)

DefaultProcessorDecorator(Object processor, ProcessingCriteria criteria)

Method Summary

protected boolean	isEnabled(Resource resource)
void	process(Resource resource, Reader reader, Writer writer) Process a content supplied by a reader and perform some sort of processing.

Methods inherited from class ro.isdc.wro.model.resource.processor.decorator.ProcessorDecorator

isEligible, toString

Methods inherited from class ro.isdc.wro.model.resource.processor.decorator.AbstractProcessorDecoratorSupport

getSupportedResourceType, getSupportedResourceTypeInternal, getSupportedResourceTypes, isImportAware, isMinimize, isMinimizeInternal, isSupported, process

Methods inherited from class ro.isdc.wro.util.AbstractDecorator

getDecoratedObject, getOriginalDecoratedObject, getOriginalDecoratedObject

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DefaultProcessorDecorator

public DefaultProcessorDecorator(Object processor,
                                 boolean minimize)

DefaultProcessorDecorator

public DefaultProcessorDecorator(Object processor,
                                 ProcessingCriteria criteria)

Method Detail

process

public void process(Resource resource,
                    Reader reader,
                    Writer writer)
             throws IOException

Process a content supplied by a reader and perform some sort of processing. It is important to know that you should use reader for processing instead of trying to access the resource original content using Resource, because this way you can ignore the other preProcessors from the chain.
It is not require to explicitly handle exception. When the processing fails, the following can happen:

• the exception is wrapped in RuntimeException and the processing chain is interrupted (by default)
• content remains unchanged (if WroConfiguration.isIgnoreFailingProcessor() is true)

It is not required to close the reader and writers, because these will be closed for you.

Specified by:

process in interface ResourcePreProcessor

Overrides:

process in class ProcessorDecorator

Parameters:

resource - the original resource as it found in the model.

reader - Reader used to read processed resource content.

writer - Writer where used to write processed results.

Throws:

IOException - when an exception occurs. The future version will change the exception type to Exception, because any exception may occur during processing. The processing failure will be handled based on value of WroConfiguration.isIgnoreFailingProcessor() configuration flag.

isEnabled

protected boolean isEnabled(Resource resource)

Overrides:

isEnabled in class ProcessorDecorator

Parameters:

resource - ResourcePreProcessor for which enabled flag should be checked.

Returns:

a flag indicating if this processor is enabled. When false, the processing will be skipped and the content will be left unchanged. This value is true by default.