Package com.vaadin.flow.server.frontend

Class NodeUpdater

java.lang.Object

com.vaadin.flow.server.frontend.NodeUpdater

All Implemented Interfaces:

FallibleCommand

Direct Known Subclasses:

TaskGeneratePackageJson, TaskUpdateImports, TaskUpdatePackages

public abstract class NodeUpdater
extends Object
implements FallibleCommand

Base abstract class for frontend updaters that needs to be run when in dev-mode or from the flow maven plugin.

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

Since:

2.0

Field Summary

Fields

Modifier and Type	Field	Description
protected String	buildDir
protected static String	DEP_NAME_FLOW_DEPS
protected static String	DEP_NAME_FLOW_JARS
protected File	flowResourcesFolder	Base directory for flow dependencies coming from jars.
protected FrontendDependenciesScanner	frontDeps	The FrontendDependencies object representing the application dependencies.
static String	GENERATED_PREFIX	Relative paths of generated should be prefixed with this value, so they can be correctly separated from {projectDir}/frontend files.
protected File	generatedFolder	Base directory for flow generated files.
protected File	nodeModulesFolder	The path to the FrontendUtils.NODE_MODULES directory.
protected File	npmFolder	Base directory for Constants.PACKAGE_JSON, FrontendUtils.WEBPACK_CONFIG, FrontendUtils.NODE_MODULES.
protected static String	POLYMER_VERSION

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	NodeUpdater(ClassFinder finder, FrontendDependenciesScanner frontendDependencies, File npmFolder, File generatedPath, File flowResourcesPath, String buildDir, FeatureFlags featureFlags)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected String	generateVersionsJson()	Generate versions json file for version locking.
protected File	getPackageJsonFile()
protected File	getPackageLockFile()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.vaadin.flow.server.frontend.FallibleCommand

execute

Field Detail

GENERATED_PREFIX

public static final String GENERATED_PREFIX

Relative paths of generated should be prefixed with this value, so they can be correctly separated from {projectDir}/frontend files.

See Also:

Constant Field Values

DEP_NAME_FLOW_DEPS

protected static final String DEP_NAME_FLOW_DEPS

See Also:

Constant Field Values

DEP_NAME_FLOW_JARS

protected static final String DEP_NAME_FLOW_JARS

See Also:

Constant Field Values

POLYMER_VERSION

protected static final String POLYMER_VERSION

See Also:

Constant Field Values

npmFolder

protected final File npmFolder

Base directory for Constants.PACKAGE_JSON, FrontendUtils.WEBPACK_CONFIG, FrontendUtils.NODE_MODULES.

nodeModulesFolder

protected final File nodeModulesFolder

The path to the FrontendUtils.NODE_MODULES directory.

generatedFolder

protected final File generatedFolder

Base directory for flow generated files.

flowResourcesFolder

protected final File flowResourcesFolder

Base directory for flow dependencies coming from jars.

frontDeps

protected final FrontendDependenciesScanner frontDeps

The FrontendDependencies object representing the application dependencies.

buildDir

protected String buildDir

Constructor Detail

NodeUpdater

protected NodeUpdater(ClassFinder finder,
                      FrontendDependenciesScanner frontendDependencies,
                      File npmFolder,
                      File generatedPath,
                      File flowResourcesPath,
                      String buildDir,
                      FeatureFlags featureFlags)

Constructor.

Parameters:

finder - a reusable class finder

frontendDependencies - a reusable frontend dependencies

npmFolder - folder with the `package.json` file

generatedPath - folder where flow generated files will be placed.

flowResourcesPath - folder where flow dependencies will be copied to.

buildDir - the used build directory

featureFlags - FeatureFlags for this build

Method Detail

getPackageJsonFile

protected File getPackageJsonFile()

getPackageLockFile

protected File getPackageLockFile()

generateVersionsJson

protected String generateVersionsJson()
                               throws IOException

Generate versions json file for version locking.

Returns:

generated versions json file path

Throws:

IOException - when file IO fails