}

    /**
     * Registers this ingester with the ingest factory.
     * This makes the ingester available for processing documents.
     */
    public void register() {
        getIngestFactory().add(this);
    }

    /**
     * Gets the ingest factory instance for managing ingesters.
     *
     * @return the ingest factory instance
     */
    protected IngestFactory getIngestFactory() {

     *
     * @param ingester the ingester to add
     */
    public synchronized void add(final Ingester ingester) {
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {}", ingester.getClass().getSimpleName());
        }
        final Ingester[] newIngesters = Arrays.copyOf(ingesters, ingesters.length + 1);
        newIngesters[ingesters.length] = ingester;

        if (ingestFactory == null) {
            return resultData;
        }
        ResultData target = resultData;
        for (final Ingester ingester : ingestFactory.getIngesters()) {
            try {
                target = ingester.process(target, responseData);
            } catch (final Exception e) {

    }

    private static class TestIngestFactory extends IngestFactory {
        List<Ingester> ingesters = new ArrayList<>();

        @Override
        public Ingester[] getIngesters() {
            return ingesters.toArray(new Ingester[0]);
        }
    }

    private static class TestIngester extends Ingester {
        int processCalled = 0;

        @Override

            return dataMap;
        }
        Map<String, Object> target = dataMap;
        for (final Ingester ingester : ingestFactory.getIngesters()) {
            try {
                target = ingester.process(target, paramMap);
            } catch (final Exception e) {
                logger.warn("Failed to process Ingest[{}]", ingester.getClass().getSimpleName(), e);
            }
        }
        return target;
    }

        final Map<String, Object> result = indexUpdater.ingest(accessResult, doc);

        assertNotNull(result);
        // Result should be the same as input doc when ingester is null or doesn't modify
        assertSame(doc, result);
    }

    // Test ingest with exception in ingester
    public void test_ingest_withException() {

            return map;
        }
        Map<String, Object> target = map;
        for (final Ingester ingester : ingestFactory.getIngesters()) {
            try {
                target = ingester.process(target, accessResult);
            } catch (final Exception e) {
                logger.warn("Failed to process Ingest[{}]", ingester.getClass().getSimpleName(), e);
            }
        }
        return target;
    }

        Artifact themeArtifact = new Artifact("fess-theme-test", "1.0.0");
        assertEquals(ArtifactType.THEME, themeArtifact.getType());

        Artifact ingestArtifact = new Artifact("fess-ingest-test", "1.0.0");
        assertEquals(ArtifactType.INGEST, ingestArtifact.getType());

        Artifact scriptArtifact = new Artifact("fess-script-test", "1.0.0");
        assertEquals(ArtifactType.SCRIPT, scriptArtifact.getType());

## Theme

 - [Simple](https://github.com/codelibs/fess-theme-simple)
 - [Classic](https://github.com/codelibs/fess-theme-classic)

## Ingest

 - [Logger](https://github.com/codelibs/fess-ingest-logger)
 - [NDJSON](https://github.com/codelibs/fess-ingest-ndjson)

## Script

 - [Groovy](https://github.com/codelibs/fess-script-groovy)
 - [OGNL](https://github.com/codelibs/fess-script-ognl)

     */
    public enum ArtifactType {
        /** Data store plugins */
        DATA_STORE("fess-ds"), //
        /** Theme plugins */
        THEME("fess-theme"), //
        /** Ingest processor plugins */
        INGEST("fess-ingest"), //
        /** Script plugins */
        SCRIPT("fess-script"), //
        /** Web application plugins */
        WEBAPP("fess-webapp"), //
        /** Thumbnail generator plugins */