Package com.vaadin.flow.server.frontend

Class GenerateMainImports

java.lang.Object

com.vaadin.flow.server.frontend.GenerateMainImports

All Implemented Interfaces:

Runnable

public class GenerateMainImports
extends Object

Collect generated-flow-imports content for project to use to determine if dev-bundle contains all required imports.

Only used when checking if dev bundle need to be rebuild in dev mode without a dev server.

For internal use only. May be renamed or removed in a future release.

Constructor Summary

Constructors

Constructor	Description
GenerateMainImports(ClassFinder classFinder, FrontendDependenciesScanner frontendDepScanner, Options options, elemental.json.JsonObject statsJson)

Method Summary

Modifier and Type	Method	Description
protected boolean	addCssLines(Collection<String> lines, CssData cssData, int i)	Adds CSS imports to the generated flow imports file based on the given CssImport data.
protected void	addLines(Collection<String> lines, String content)
protected List<String>	getCssLines(List<CssData> css)	Returns the JS code lines representing the CSS data provided as a parameter.
protected String	getImportsNotFoundMessage()
List<String>	getLines()
protected org.slf4j.Logger	getLogger()	Get logger for this instance.
protected String	getThemeIdPrefix()
protected boolean	importedFileExists(String importName)	Validate that the file importName can be found.
protected boolean	inMemoryCollection()	If in memory collection we are collecting for devBundle check.
protected <T> List<String>	merge(Map<T,List<String>> css)
protected String	resolveResource(String importPath)
void	run()
protected void	writeOutput(Map<File,List<String>> outputFiles)

Methods inherited from class java.lang.Object

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

Constructor Details

GenerateMainImports

public GenerateMainImports(ClassFinder classFinder,
 FrontendDependenciesScanner frontendDepScanner,
 Options options,
 elemental.json.JsonObject statsJson)

Method Details

getLines

public List<String> getLines()

writeOutput

protected void writeOutput(Map<File,List<String>> outputFiles)

addCssLines

protected boolean addCssLines(Collection<String> lines,
 CssData cssData,
 int i)

Adds CSS imports to the generated flow imports file based on the given CssImport data.

Parameters:

lines - collection of generated file lines to add imports to

cssData - CssImport data

i - imported CSS counter

Returns:

true if the imported CSS files does exist, false otherwise

getLogger

protected org.slf4j.Logger getLogger()

Get logger for this instance.

Returns:

a logger

inMemoryCollection

protected boolean inMemoryCollection()

If in memory collection we are collecting for devBundle check.

Returns:

true if devBundle in memory collecting

getImportsNotFoundMessage

protected String getImportsNotFoundMessage()

importedFileExists

protected boolean importedFileExists(String importName)

Validate that the file importName can be found.

Parameters:

importName - name of the file

Returns:

true if file is found

run

public void run()

Specified by:

run in interface Runnable

getCssLines

protected List<String> getCssLines(List<CssData> css)

Returns the JS code lines representing the CSS data provided as a parameter.

Deduplicates the data so that each CSSData instance is loaded / injected only once.

Parameters:

css - the CSS import data

Returns:

the JS statements needed to import and apply the CSS data

resolveResource

protected String resolveResource(String importPath)

addLines

protected void addLines(Collection<String> lines,
 String content)

getThemeIdPrefix

protected String getThemeIdPrefix()

merge

protected <T> List<String> merge(Map<T,List<String>> css)