1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19 package org.apache.maven.plugin.plugin;
20
21 import java.util.Collections;
22 import java.util.List;
23
24 import org.apache.maven.plugin.AbstractMojo;
25 import org.apache.maven.plugin.MojoExecutionException;
26 import org.apache.maven.plugin.descriptor.PluginDescriptor;
27 import org.apache.maven.plugins.annotations.Parameter;
28 import org.apache.maven.project.MavenProject;
29
30
31
32
33
34
35
36 public abstract class AbstractGeneratorMojo extends AbstractMojo {
37
38
39
40 @Parameter(defaultValue = "${project}", readonly = true)
41 protected MavenProject project;
42
43
44
45
46 @Parameter
47 protected String goalPrefix;
48
49
50
51
52
53
54 @Parameter(defaultValue = "false", property = "maven.plugin.skip")
55 private boolean skip;
56
57
58
59
60
61
62 @Parameter
63 private List<String> packagingTypes = Collections.singletonList("maven-plugin");
64
65
66
67
68 protected static final String LS = System.lineSeparator();
69
70 protected abstract void generate() throws MojoExecutionException;
71
72 @Override
73 public void execute() throws MojoExecutionException {
74 if (!packagingTypes.contains(project.getPackaging())) {
75 getLog().info("Unsupported packaging type " + project.getPackaging() + ", execution skipped");
76 return;
77 }
78
79 if (skip) {
80 getLog().warn("Execution skipped");
81 return;
82 }
83
84 String defaultGoalPrefix = getDefaultGoalPrefix(project);
85
86 if (goalPrefix == null) {
87 goalPrefix = defaultGoalPrefix;
88 } else if (!goalPrefix.equals(defaultGoalPrefix)) {
89 getLog().warn(LS + LS + "Goal prefix is specified as: '" + goalPrefix + "'. "
90 + "Maven currently expects it to be '" + defaultGoalPrefix + "'." + LS);
91 }
92
93 generate();
94 }
95
96 static String getDefaultGoalPrefix(MavenProject project) {
97 String defaultGoalPrefix;
98 if ("maven-plugin-report-plugin".equalsIgnoreCase(project.getArtifactId())) {
99 defaultGoalPrefix = "plugin-report";
100 } else if ("maven-plugin".equalsIgnoreCase(project.getArtifactId())) {
101 defaultGoalPrefix =
102 project.getGroupId().substring(project.getGroupId().lastIndexOf('.') + 1);
103 } else {
104 defaultGoalPrefix = PluginDescriptor.getGoalPrefixFromArtifactId(project.getArtifactId());
105 }
106 return defaultGoalPrefix;
107 }
108 }