Package org.apache.maven.plugin.internal

Class DefaultMavenPluginManager

java.lang.Object

org.apache.maven.plugin.internal.DefaultMavenPluginManager

All Implemented Interfaces:

MavenPluginManager

@Component(role=MavenPluginManager.class)
public class DefaultMavenPluginManager
extends Object
implements MavenPluginManager

Provides basic services to manage Maven plugins and their mojos. This component is kept general in its design such that the plugins/mojos can be used in arbitrary contexts. In particular, the mojos can be used for ordinary build plugins as well as special purpose plugins like reports.

Since:

3.0

Field Summary

Fields

Modifier and Type	Field	Description
private PluginDescriptorBuilder	builder
private ClassRealmManager	classRealmManager
private List<MavenPluginConfigurationValidator>	configurationValidators
private org.codehaus.plexus.PlexusContainer	container
private ExtensionDescriptorBuilder	extensionDescriptorBuilder
private ExtensionRealmCache	extensionRealmCache
static final String	KEY_EXTENSIONS_REALMS	PluginId => ExtensionRealmCache.CacheRecord map MavenProject context value key.
private org.codehaus.plexus.logging.Logger	logger
private org.codehaus.plexus.logging.LoggerManager	loggerManager
private PluginArtifactsCache	pluginArtifactsCache
private PluginDependenciesResolver	pluginDependenciesResolver
private PluginDescriptorCache	pluginDescriptorCache
private PluginRealmCache	pluginRealmCache
private PluginValidationManager	pluginValidationManager
private PluginVersionResolver	pluginVersionResolver
private RuntimeInformation	runtimeInformation

Constructor Summary

Constructors

Constructor	Description
DefaultMavenPluginManager()

Method Summary

Modifier and Type	Method	Description
private Map<String,ClassLoader>	calcImports(MavenProject project, ClassLoader parent, List<String> imports)
void	checkRequiredMavenVersion(PluginDescriptor pluginDescriptor)	Verifies the specified plugin is compatible with the current Maven runtime.
private void	createPluginRealm(PluginDescriptor pluginDescriptor, MavenSession session, ClassLoader parent, Map<String,ClassLoader> foreignImports, org.eclipse.aether.graph.DependencyFilter filter)
private void	discoverPluginComponents(org.codehaus.plexus.classworlds.realm.ClassRealm pluginRealm, Plugin plugin, PluginDescriptor pluginDescriptor)
private PluginDescriptor	extractPluginDescriptor(Artifact pluginArtifact, Plugin plugin)
<T> T	getConfiguredMojo(Class<T> mojoInterface, MavenSession session, MojoExecution mojoExecution)	Looks up the mojo for the specified mojo execution and populates its parameters from the configuration given by the mojo execution.
MojoDescriptor	getMojoDescriptor(Plugin plugin, String goal, List<org.eclipse.aether.repository.RemoteRepository> repositories, org.eclipse.aether.RepositorySystemSession session)	Retrieves the descriptor for the specified plugin goal from the plugin's main artifact.
PluginDescriptor	getPluginDescriptor(Plugin plugin, List<org.eclipse.aether.repository.RemoteRepository> repositories, org.eclipse.aether.RepositorySystemSession session)	Retrieves the descriptor for the specified plugin from its main artifact.
private String	getPluginDescriptorLocation()
private PluginDescriptor	parsePluginDescriptor(InputStream is, Plugin plugin, String descriptorLocation)
private void	populateMojoExecutionFields(Object mojo, String executionId, MojoDescriptor mojoDescriptor, org.codehaus.plexus.classworlds.realm.ClassRealm pluginRealm, org.codehaus.plexus.configuration.PlexusConfiguration configuration, org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator expressionEvaluator)
void	releaseMojo(Object mojo, MojoExecution mojoExecution)	Releases the specified mojo back to the container.
private List<Artifact>	resolveExtensionArtifacts(Plugin extensionPlugin, List<org.eclipse.aether.repository.RemoteRepository> repositories, org.eclipse.aether.RepositorySystemSession session)
ExtensionRealmCache.CacheRecord	setupExtensionsRealm(MavenProject project, Plugin plugin, org.eclipse.aether.RepositorySystemSession session)	Sets up class realm for the specified build extensions plugin.
void	setupPluginRealm(PluginDescriptor pluginDescriptor, MavenSession session, ClassLoader parent, List<String> imports, org.eclipse.aether.graph.DependencyFilter filter)	Sets up the class realm for the specified plugin.
private List<org.eclipse.aether.artifact.Artifact>	toAetherArtifacts(List<Artifact> pluginArtifacts)
private List<Artifact>	toMavenArtifacts(org.eclipse.aether.graph.DependencyNode root, org.eclipse.aether.util.graph.visitor.PreorderNodeListGenerator nlg)
private void	validateParameters(MojoDescriptor mojoDescriptor, org.codehaus.plexus.configuration.PlexusConfiguration configuration, org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator expressionEvaluator)

Methods inherited from class java.lang.Object

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

Field Details

KEY_EXTENSIONS_REALMS

public static final String KEY_EXTENSIONS_REALMS

PluginId => ExtensionRealmCache.CacheRecord map MavenProject context value key. The map is used to ensure the same class realm is used to load build extensions and load mojos for extensions=true plugins.

Note: This is part of internal implementation and may be changed or removed without notice

Since:

3.3.0

logger

@Requirement
private org.codehaus.plexus.logging.Logger logger

loggerManager

@Requirement
private org.codehaus.plexus.logging.LoggerManager loggerManager

container

@Requirement
private org.codehaus.plexus.PlexusContainer container

classRealmManager

@Requirement
private ClassRealmManager classRealmManager

pluginDescriptorCache

@Requirement
private PluginDescriptorCache pluginDescriptorCache

pluginRealmCache

@Requirement
private PluginRealmCache pluginRealmCache

pluginDependenciesResolver

@Requirement
private PluginDependenciesResolver pluginDependenciesResolver

runtimeInformation

@Requirement
private RuntimeInformation runtimeInformation

extensionRealmCache

@Requirement
private ExtensionRealmCache extensionRealmCache

pluginVersionResolver

@Requirement
private PluginVersionResolver pluginVersionResolver

pluginArtifactsCache

@Requirement
private PluginArtifactsCache pluginArtifactsCache

configurationValidators

@Requirement
private List<MavenPluginConfigurationValidator> configurationValidators

pluginValidationManager

@Requirement
private PluginValidationManager pluginValidationManager

extensionDescriptorBuilder

private ExtensionDescriptorBuilder extensionDescriptorBuilder

builder

private PluginDescriptorBuilder builder

Constructor Details

DefaultMavenPluginManager

public DefaultMavenPluginManager()

Method Details

getPluginDescriptor

public PluginDescriptor getPluginDescriptor(Plugin plugin,
 List<org.eclipse.aether.repository.RemoteRepository> repositories,
 org.eclipse.aether.RepositorySystemSession session)
                                     throws PluginResolutionException,
PluginDescriptorParsingException,
InvalidPluginDescriptorException

Description copied from interface: MavenPluginManager

Retrieves the descriptor for the specified plugin from its main artifact.

Specified by:

getPluginDescriptor in interface MavenPluginManager

Parameters:

plugin - The plugin whose descriptor should be retrieved, must not be null.

repositories - The plugin repositories to use for resolving the plugin's main artifact, must not be null.

session - The repository session to use for resolving the plugin's main artifact, must not be null.

Returns:

The plugin descriptor, never null.

Throws:

PluginResolutionException

PluginDescriptorParsingException

InvalidPluginDescriptorException

extractPluginDescriptor

private PluginDescriptor extractPluginDescriptor(Artifact pluginArtifact,
 Plugin plugin)
                                          throws PluginDescriptorParsingException,
InvalidPluginDescriptorException

Throws:

PluginDescriptorParsingException

InvalidPluginDescriptorException

getPluginDescriptorLocation

private String getPluginDescriptorLocation()

parsePluginDescriptor

private PluginDescriptor parsePluginDescriptor(InputStream is,
 Plugin plugin,
 String descriptorLocation)
                                        throws PluginDescriptorParsingException

Throws:

PluginDescriptorParsingException

getMojoDescriptor

public MojoDescriptor getMojoDescriptor(Plugin plugin,
 String goal,
 List<org.eclipse.aether.repository.RemoteRepository> repositories,
 org.eclipse.aether.RepositorySystemSession session)
                                 throws MojoNotFoundException,
PluginResolutionException,
PluginDescriptorParsingException,
InvalidPluginDescriptorException

Description copied from interface: MavenPluginManager

Retrieves the descriptor for the specified plugin goal from the plugin's main artifact.

Specified by:

getMojoDescriptor in interface MavenPluginManager

Parameters:

plugin - The plugin whose mojo descriptor should be retrieved, must not be null.

goal - The simple name of the mojo whose descriptor should be retrieved, must not be null.

repositories - The plugin repositories to use for resolving the plugin's main artifact, must not be null.

session - The repository session to use for resolving the plugin's main artifact, must not be null.

Returns:

The mojo descriptor, never null.

Throws:

MojoNotFoundException

PluginResolutionException

PluginDescriptorParsingException

InvalidPluginDescriptorException

checkRequiredMavenVersion

public void checkRequiredMavenVersion(PluginDescriptor pluginDescriptor)
                               throws PluginIncompatibleException

Description copied from interface: MavenPluginManager

Verifies the specified plugin is compatible with the current Maven runtime.

Specified by:

checkRequiredMavenVersion in interface MavenPluginManager

Parameters:

pluginDescriptor - The descriptor of the plugin to check, must not be null.

Throws:

PluginIncompatibleException

setupPluginRealm

public void setupPluginRealm(PluginDescriptor pluginDescriptor,
 MavenSession session,
 ClassLoader parent,
 List<String> imports,
 org.eclipse.aether.graph.DependencyFilter filter)
                      throws PluginResolutionException,
PluginContainerException

Description copied from interface: MavenPluginManager

Sets up the class realm for the specified plugin. Both the class realm and the plugin artifacts that constitute it will be stored in the plugin descriptor.

Specified by:

setupPluginRealm in interface MavenPluginManager

Parameters:

pluginDescriptor - The plugin descriptor in which to save the class realm and the plugin artifacts, must not be null.

session - The build session from which to pick the current project and repository settings, must not be null.

parent - The parent class realm for the plugin, may be null to use the Maven core realm.

imports - The packages/types to import from the parent realm, may be null.

filter - The filter used to exclude certain plugin dependencies, may be null.

Throws:

PluginResolutionException

PluginContainerException

createPluginRealm

private void createPluginRealm(PluginDescriptor pluginDescriptor,
 MavenSession session,
 ClassLoader parent,
 Map<String,ClassLoader> foreignImports,
 org.eclipse.aether.graph.DependencyFilter filter)
                        throws PluginResolutionException,
PluginContainerException

Throws:

PluginResolutionException

PluginContainerException

discoverPluginComponents

private void discoverPluginComponents(org.codehaus.plexus.classworlds.realm.ClassRealm pluginRealm,
 Plugin plugin,
 PluginDescriptor pluginDescriptor)
                               throws PluginContainerException

Throws:

PluginContainerException

toAetherArtifacts

private List<org.eclipse.aether.artifact.Artifact> toAetherArtifacts(List<Artifact> pluginArtifacts)

toMavenArtifacts

private List<Artifact> toMavenArtifacts(org.eclipse.aether.graph.DependencyNode root,
 org.eclipse.aether.util.graph.visitor.PreorderNodeListGenerator nlg)

calcImports

private Map<String,ClassLoader> calcImports(MavenProject project,
 ClassLoader parent,
 List<String> imports)

getConfiguredMojo

public <T> T getConfiguredMojo(Class<T> mojoInterface,
 MavenSession session,
 MojoExecution mojoExecution)
                        throws PluginConfigurationException,
PluginContainerException

Description copied from interface: MavenPluginManager

Looks up the mojo for the specified mojo execution and populates its parameters from the configuration given by the mojo execution. The mojo/plugin descriptor associated with the mojo execution provides the class realm to lookup the mojo from. Warning: The returned mojo instance must be released via MavenPluginManager.releaseMojo(Object, MojoExecution) when the mojo is no longer needed to free any resources allocated for it.

Specified by:

getConfiguredMojo in interface MavenPluginManager

Parameters:

mojoInterface - The component role of the mojo, must not be null.

session - The build session in whose context the mojo will be used, must not be null.

mojoExecution - The mojo execution to retrieve the mojo for, must not be null.

Returns:

The ready-to-execute mojo, never null.

Throws:

PluginConfigurationException

PluginContainerException

populateMojoExecutionFields

private void populateMojoExecutionFields(Object mojo,
 String executionId,
 MojoDescriptor mojoDescriptor,
 org.codehaus.plexus.classworlds.realm.ClassRealm pluginRealm,
 org.codehaus.plexus.configuration.PlexusConfiguration configuration,
 org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator expressionEvaluator)
                                  throws PluginConfigurationException

Throws:

PluginConfigurationException

validateParameters

private void validateParameters(MojoDescriptor mojoDescriptor,
 org.codehaus.plexus.configuration.PlexusConfiguration configuration,
 org.codehaus.plexus.component.configurator.expression.ExpressionEvaluator expressionEvaluator)
                         throws org.codehaus.plexus.component.configurator.ComponentConfigurationException,
PluginParameterException

Throws:

org.codehaus.plexus.component.configurator.ComponentConfigurationException

PluginParameterException

releaseMojo

public void releaseMojo(Object mojo,
 MojoExecution mojoExecution)

Description copied from interface: MavenPluginManager

Releases the specified mojo back to the container.

Specified by:

releaseMojo in interface MavenPluginManager

Parameters:

mojo - The mojo to release, may be null.

mojoExecution - The mojo execution the mojo was originally retrieved for, must not be null.

setupExtensionsRealm

public ExtensionRealmCache.CacheRecord setupExtensionsRealm(MavenProject project,
 Plugin plugin,
 org.eclipse.aether.RepositorySystemSession session)
                                                     throws PluginManagerException

Description copied from interface: MavenPluginManager

Sets up class realm for the specified build extensions plugin.

Specified by:

setupExtensionsRealm in interface MavenPluginManager

Throws:

PluginManagerException

resolveExtensionArtifacts

private List<Artifact> resolveExtensionArtifacts(Plugin extensionPlugin,
 List<org.eclipse.aether.repository.RemoteRepository> repositories,
 org.eclipse.aether.RepositorySystemSession session)
                                          throws PluginResolutionException

Throws:

PluginResolutionException