* @param artifactType the type of the artifact
     * @param filename the filename to parse
     * @return an artifact instance
     */
    protected Artifact getArtifactFromFileName(final ArtifactType artifactType, final String filename) {
        return getArtifactFromFileName(artifactType, filename, null);
    }

    /**
     * Creates an artifact instance from a filename with a specified URL.
     *

        Artifact artifact = pluginHelper.getArtifactFromFileName(ArtifactType.DATA_STORE, "fess-ds-atlassian-13.2.0.jar");
        assertEquals("fess-ds-atlassian", artifact.getName());
        assertEquals("13.2.0", artifact.getVersion());
    }

    @Test
    public void test_getArtifactFromFileName2() {

                    try {
                        final PluginHelper pluginHelper = ComponentUtil.getPluginHelper();
                        final Artifact artifact =
                                pluginHelper.getArtifactFromFileName(ArtifactType.UNKNOWN, filename, tempFile.getAbsolutePath());
                        pluginHelper.installArtifact(artifact);
                    } catch (final Exception e) {