Package org.codehaus.groovy.runtime.m12n

Class ExtensionModuleScanner

java.lang.Object

org.codehaus.groovy.runtime.m12n.ExtensionModuleScanner

public class ExtensionModuleScanner
extends Object

A module extension scanner is responsible for searching classpath modules, loading metadata from module descriptors, then perform custom tasks for each module. This class was introduced as a fix for GROOVY-6008

Since:

2.1.2

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ExtensionModuleScanner.ExtensionModuleListener	Listener interface for extension module discovery events.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	LEGACY_MODULE_META_INF_FILE	Legacy location for META-INF module metadata files (Java services format).
static final String	MODULE_META_INF_FILE	Current location for META-INF module metadata files (Java properties format).

Constructor Summary

Constructors

Constructor	Description
ExtensionModuleScanner(ExtensionModuleScanner.ExtensionModuleListener listener, ClassLoader loader)	Constructs a new ExtensionModuleScanner.

Method Summary

Modifier and Type	Method	Description
void	scanClasspathModules()	Scans the classpath for extension module metadata files.
void	scanExtensionModuleFromProperties(Properties properties)	Scans and creates an extension module from the given properties.

Methods inherited from class java.lang.Object

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

Field Details

LEGACY_MODULE_META_INF_FILE

public static final String LEGACY_MODULE_META_INF_FILE

Legacy location for META-INF module metadata files (Java services format).

See Also:

• Constant Field Values

MODULE_META_INF_FILE

public static final String MODULE_META_INF_FILE

Current location for META-INF module metadata files (Java properties format).

See Also:

• Constant Field Values

Constructor Details

ExtensionModuleScanner

public ExtensionModuleScanner(ExtensionModuleScanner.ExtensionModuleListener listener,
 ClassLoader loader)

Constructs a new ExtensionModuleScanner.

Parameters:

listener - the listener to be notified when modules are discovered

loader - the class loader to use for scanning and loading modules

Method Details

scanClasspathModules

public void scanClasspathModules()

Scans the classpath for extension module metadata files. This method scans for both the current and legacy module metadata file locations.

scanExtensionModuleFromProperties

public void scanExtensionModuleFromProperties(Properties properties)

Scans and creates an extension module from the given properties. Properties are typically loaded from a module metadata file (properties format).

Parameters:

properties - the module metadata properties