org.apache.shindig.gadgets.features
Class FeatureResourceLoader

java.lang.Object
  org.apache.shindig.gadgets.features.FeatureResourceLoader

Direct Known Subclasses:

BrowserSpecificFeatureResource.Loader

public class FeatureResourceLoader
extends Object

Class that loads FeatureResource objects used to populate JS feature code.

Constructor Summary

FeatureResourceLoader()

Method Summary

protected boolean	fileHasChanged(File file, long lastModified)
protected String	getFileContent(File file)
protected String	getOptPath(String orig)
protected String	getResourceContent(String resource)
FeatureResource	load(Uri uri, Map<String,String> attribs) Primary, and only public, method of FeatureResourceLoader.
protected FeatureResource	loadFile(String path, Map<String,String> attribs)
protected FeatureResource	loadResource(String path, Map<String,String> attribs)
protected FeatureResource	loadUri(Uri uri, Map<String,String> attribs)
void	setHttpFetcher(HttpFetcher fetcher)
void	setSupportFileUpdates(int updateCheckFrequency)
void	setTimeSource(TimeSource timeSource)

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureResourceLoader

public FeatureResourceLoader()

Method Detail

setHttpFetcher

@Inject
public void setHttpFetcher(HttpFetcher fetcher)

setTimeSource

@Inject
public void setTimeSource(TimeSource timeSource)

setSupportFileUpdates

@Inject(optional=true)
public void setSupportFileUpdates(int updateCheckFrequency)

load

public FeatureResource load(Uri uri,
                            Map<String,String> attribs)
                     throws GadgetException

Primary, and only public, method of FeatureResourceLoader. Loads the resource keyed at the given uri, which was decorated with the provided list of attributes. The default implementation loads both file and res-schema resources using ResourceLoader, attempting to load optimized content for files named [file].js as [file].opt.js. Override this method to provide custom functionality. Basic loadFile, loadResource, and loadUri methods are kept protected for easy reuse.

Parameters:

uri - Uri of resource to be loaded.

attribs - Attributes decorating the resource in the corresponding feature.xml

Returns:

FeatureResource object providing content and debugContent loading capability.

Throws:

GadgetException - If any failure occurs during this process.

loadFile

protected FeatureResource loadFile(String path,
                                   Map<String,String> attribs)
                            throws IOException

Throws:

IOException

getFileContent

protected String getFileContent(File file)

loadResource

protected FeatureResource loadResource(String path,
                                       Map<String,String> attribs)
                                throws IOException

Throws:

IOException

getResourceContent

protected String getResourceContent(String resource)

loadUri

protected FeatureResource loadUri(Uri uri,
                                  Map<String,String> attribs)

getOptPath

protected String getOptPath(String orig)

fileHasChanged

protected boolean fileHasChanged(File file,
                                 long lastModified)