Example usage for org.apache.maven.plugin.descriptor PluginDescriptorBuilder build

Introduction

In this page you can find the example usage for org.apache.maven.plugin.descriptor PluginDescriptorBuilder build.

Prototype

public PluginDescriptor build(Reader reader) throws PlexusConfigurationException 

Source Link

Usage

From source file:org.eclipse.m2e.editor.xml.PomTemplateContextUtil.java

License:Open Source License

public PluginDescriptor getPluginDescriptor(String groupId, String artifactId, String version) {
    String name = groupId + ":" + artifactId + ":" + version;
    PluginDescriptor descriptor = descriptors.get(name);
    if (descriptor != null) {
        return descriptor;
    }/*from   w w  w.ja va 2s.  c o m*/

    try {
        IMaven embedder = MavenPlugin.getMaven();

        List<ArtifactRepository> repositories = embedder.getArtifactRepositories();

        Artifact artifact = embedder.resolve(groupId, artifactId, version, "maven-plugin", null, repositories, //$NON-NLS-1$
                null);

        File file = artifact.getFile();
        if (file == null) {
            String msg = "Can't resolve plugin " + name; //$NON-NLS-1$
            log.error(msg);
        } else {
            InputStream is = null;
            ZipFile zf = null;
            try {
                zf = new ZipFile(file);
                ZipEntry entry = zf.getEntry("META-INF/maven/plugin.xml"); //$NON-NLS-1$
                if (entry != null) {
                    is = zf.getInputStream(entry);
                    PluginDescriptorBuilder builder = new PluginDescriptorBuilder();
                    descriptor = builder.build(new InputStreamReader(is));
                    descriptors.put(name, descriptor);
                    return descriptor;
                }
            } catch (Exception ex) {
                String msg = "Can't read configuration for " + name; //$NON-NLS-1$
                log.error(msg, ex);
            } finally {
                IOUtil.close(is);
                try {
                    zf.close();
                } catch (IOException ex) {
                    // ignore
                }
            }
        }

    } catch (CoreException ex) {
        IStatus status = ex.getStatus();
        String msg = status.getMessage();
        if (status.getException() != null) {
            msg += "; " + status.getException().getMessage();
        }
        log.error(msg, ex);
    }
    return null;
}

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