1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.plugin;
20
21 import java.util.List;
22 import org.apache.maven.execution.MavenSession;
23 import org.apache.maven.model.Plugin;
24 import org.apache.maven.plugin.descriptor.MojoDescriptor;
25 import org.apache.maven.plugin.descriptor.PluginDescriptor;
26 import org.apache.maven.project.MavenProject;
27 import org.eclipse.aether.RepositorySystemSession;
28 import org.eclipse.aether.graph.DependencyFilter;
29 import org.eclipse.aether.repository.RemoteRepository;
30
31 /**
32 * Provides basic services to manage Maven plugins and their mojos. This component is kept general in its design such
33 * that the plugins/mojos can be used in arbitrary contexts. In particular, the mojos can be used for ordinary build
34 * plugins as well as special purpose plugins like reports.
35 *
36 * @since 3.0
37 * @author Benjamin Bentmann
38 */
39 public interface MavenPluginManager {
40
41 /**
42 * Retrieves the descriptor for the specified plugin from its main artifact.
43 *
44 * @param plugin The plugin whose descriptor should be retrieved, must not be {@code null}.
45 * @param repositories The plugin repositories to use for resolving the plugin's main artifact, must not be {@code
46 * null}.
47 * @param session The repository session to use for resolving the plugin's main artifact, must not be {@code null}.
48 * @return The plugin descriptor, never {@code null}.
49 */
50 PluginDescriptor getPluginDescriptor(
51 Plugin plugin, List<RemoteRepository> repositories, RepositorySystemSession session)
52 throws PluginResolutionException, PluginDescriptorParsingException, InvalidPluginDescriptorException;
53
54 /**
55 * Retrieves the descriptor for the specified plugin goal from the plugin's main artifact.
56 *
57 * @param plugin The plugin whose mojo descriptor should be retrieved, must not be {@code null}.
58 * @param goal The simple name of the mojo whose descriptor should be retrieved, must not be {@code null}.
59 * @param repositories The plugin repositories to use for resolving the plugin's main artifact, must not be {@code
60 * null}.
61 * @param session The repository session to use for resolving the plugin's main artifact, must not be {@code null}.
62 * @return The mojo descriptor, never {@code null}.
63 */
64 MojoDescriptor getMojoDescriptor(
65 Plugin plugin, String goal, List<RemoteRepository> repositories, RepositorySystemSession session)
66 throws MojoNotFoundException, PluginResolutionException, PluginDescriptorParsingException,
67 InvalidPluginDescriptorException;
68
69 /**
70 * Verifies that the specified plugin's prerequisites are met.
71 *
72 * @param pluginDescriptor The descriptor of the plugin to check, must not be {@code null}.
73 */
74 void checkPrerequisites(PluginDescriptor pluginDescriptor) throws PluginIncompatibleException;
75
76 /**
77 * Sets up the class realm for the specified plugin. Both the class realm and the plugin artifacts that constitute
78 * it will be stored in the plugin descriptor.
79 *
80 * @param pluginDescriptor The plugin descriptor in which to save the class realm and the plugin artifacts, must not
81 * be {@code null}.
82 * @param session The build session from which to pick the current project and repository settings, must not be
83 * {@code null}.
84 * @param parent The parent class realm for the plugin, may be {@code null} to use the Maven core realm.
85 * @param imports The packages/types to import from the parent realm, may be {@code null}.
86 * @param filter The filter used to exclude certain plugin dependencies, may be {@code null}.
87 */
88 void setupPluginRealm(
89 PluginDescriptor pluginDescriptor,
90 MavenSession session,
91 ClassLoader parent,
92 List<String> imports,
93 DependencyFilter filter)
94 throws PluginResolutionException, PluginContainerException;
95
96 /**
97 * Sets up class realm for the specified build extensions plugin.
98 *
99 * @since 3.3.0
100 */
101 ExtensionRealmCache.CacheRecord setupExtensionsRealm(
102 MavenProject project, Plugin plugin, RepositorySystemSession session) throws PluginManagerException;
103
104 /**
105 * Looks up the mojo for the specified mojo execution and populates its parameters from the configuration given by
106 * the mojo execution. The mojo/plugin descriptor associated with the mojo execution provides the class realm to
107 * look up the mojo from. <strong>Warning:</strong> The returned mojo instance must be released via
108 * {@link #releaseMojo(Object, MojoExecution)} when the mojo is no longer needed to free any resources allocated for
109 * it.
110 *
111 * @param mojoInterface The component role of the mojo, must not be {@code null}.
112 * @param session The build session in whose context the mojo will be used, must not be {@code null}.
113 * @param mojoExecution The mojo execution to retrieve the mojo for, must not be {@code null}.
114 * @return The ready-to-execute mojo, never {@code null}.
115 */
116 <T> T getConfiguredMojo(Class<T> mojoInterface, MavenSession session, MojoExecution mojoExecution)
117 throws PluginConfigurationException, PluginContainerException;
118
119 /**
120 * Releases the specified mojo back to the container.
121 *
122 * @param mojo The mojo to release, may be {@code null}.
123 * @param mojoExecution The mojo execution the mojo was originally retrieved for, must not be {@code null}.
124 */
125 void releaseMojo(Object mojo, MojoExecution mojoExecution);
126 }