com.ibm.jaggr.core.impl.layer

Class LayerBuilder

java.lang.Object

com.ibm.jaggr.core.impl.layer.LayerBuilder

public class LayerBuilder
extends Object

Layer builder class used to aggregate the output from the list of ModuleBuildFutures into the response stream.

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addTransportContribution(IHttpTransport.LayerContributionType type, Object arg) Appends the layer contribution specified by type (contributed by the transport) to the string buffer.
protected List<ModuleBuildFuture>	collectFutures(com.ibm.jaggr.core.impl.layer.ModuleList moduleList, javax.servlet.http.HttpServletRequest request) Dispatch the modules specified in the request to the module builders and collect the build futures returned by the builders into the returned list.
protected String	dependencyExpansionLogging(DependencyList depList)
protected String	getSourcesMappingEpilogue() Returns the source mapping epilogue for the layer that gets added to the end of the response.
protected boolean	hasErrors() Returns true if any of the module builds indicated an error
protected String	notifyLayerListeners(ILayerListener.EventType type, javax.servlet.http.HttpServletRequest request, IModule module) Calls the registered layer listeners.
protected void	processReader(IModule module, ModuleBuildReader reader) Adds the content from reader, together with any transport contributions, to the response aggregation.

Methods inherited from class java.lang.Object

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

Method Detail

getSourcesMappingEpilogue

protected String getSourcesMappingEpilogue()

Returns the source mapping epilogue for the layer that gets added to the end of the response.

Returns:

the source mapping eplilogue

See Also:

Source Map Revision 3 Proposal - Linking generated code to source maps

hasErrors

protected boolean hasErrors()

Returns true if any of the module builds indicated an error

Returns:

true if there was an error in one of the module builds

processReader

protected void processReader(IModule module,
                 ModuleBuildReader reader)
                      throws IOException

Adds the content from reader, together with any transport contributions, to the response aggregation.

Parameters:

module - The module id

reader - The module build reader

Throws:

IOException

addTransportContribution

protected void addTransportContribution(IHttpTransport.LayerContributionType type,
                            Object arg)
                                 throws IOException

Appends the layer contribution specified by type (contributed by the transport) to the string buffer.

Parameters:

type - The layer contribution type

arg - The argument value (see IHttpTransport.contributeLoaderExtensionJavaScript(String)

Throws:

IOException

collectFutures

protected List<ModuleBuildFuture> collectFutures(com.ibm.jaggr.core.impl.layer.ModuleList moduleList,
                                     javax.servlet.http.HttpServletRequest request)
                                          throws IOException

Dispatch the modules specified in the request to the module builders and collect the build futures returned by the builders into the returned list.

Parameters:

moduleList - The list of modules in the layer

request - The request object

Returns:

The list of ModuleBuildFuture objects.

Throws:

IOException

notifyLayerListeners

protected String notifyLayerListeners(ILayerListener.EventType type,
                          javax.servlet.http.HttpServletRequest request,
                          IModule module)
                               throws IOException

Calls the registered layer listeners.

Parameters:

type - The type of notification (begin or end)

request - The request object.

module - the associated module reference, depending on the value of type.

Returns:

The string to include in the layer output

Throws:

IOException

dependencyExpansionLogging

protected String dependencyExpansionLogging(DependencyList depList)
                                     throws IOException

Throws:

IOException