ro.isdc.wro.extensions.processor.js
Class BeautifyJsProcessor

java.lang.Object
  ro.isdc.wro.extensions.processor.js.BeautifyJsProcessor

All Implemented Interfaces:

ResourcePostProcessor, ResourcePreProcessor

Direct Known Subclasses:

UglifyJsProcessor

@SupportedResourceType(value=JS)
public class BeautifyJsProcessor
extends Object
implements ResourcePreProcessor, ResourcePostProcessor

Perform a beautify operation on javascript by nicely formatting it.

Since:

1.3.1

Author:

Alex Objelean

Field Summary

static String

ALIAS_BEAUTIFY

Constructor Summary

BeautifyJsProcessor()
Default constructor.

Method Summary

protected UglifyJs	newEngine()
protected void	onException(WroRuntimeException e) Invoked when a processing exception occurs.
void	process(Reader reader, Writer writer) Perform actual resource processing.
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 java.lang.Object

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

Field Detail

ALIAS_BEAUTIFY

public static final String ALIAS_BEAUTIFY

See Also:

Constant Field Values

Constructor Detail

BeautifyJsProcessor

public BeautifyJsProcessor()

Default constructor. Instantiates uglifyJs engine.

Method Detail

newEngine

protected UglifyJs newEngine()

Returns:

new instance of UglifyJs engine.

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

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.

onException

protected void onException(WroRuntimeException e)

Invoked when a processing exception occurs.

process

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

Perform actual resource processing. The content to be processed is read from source Reader and is written to destination Writer. It is the client responsibility to close both: Reader and writer.

Specified by:

process in interface ResourcePostProcessor

Parameters:

reader - source stream.

writer - destination stream.

Throws:

IOException