public void test_multipleDataStores() {
        TestDataStore dataStore1 = new TestDataStore("Store1");
        TestDataStore2 dataStore2 = new TestDataStore2("Store2");

        dataStoreFactory.add("store1", dataStore1);
        dataStoreFactory.add("store2", dataStore2);

        assertSame(dataStore1, dataStoreFactory.getDataStore("store1"));
        assertSame(dataStore2, dataStoreFactory.getDataStore("store2"));

        IndexUpdateCallback callback = new TestIndexUpdateCallback();

        // Execute on both instances
        dataStore1.store(config, callback, params);
        dataStore2.store(config, callback, params);
        dataStore2.store(config, callback, params);

        // Verify independent operation
        assertEquals(1, store1CallCount.get());

     * @param dataStore the data store instance to register, must not be null
     * @throws IllegalArgumentException if either name or dataStore is null
     */
    public void add(final String name, final DataStore dataStore) {
        if (name == null || dataStore == null) {
            throw new IllegalArgumentException(

        assertEquals("123PARAM2+,PARAM3*abc", dataStore.convertValue(Constants.DEFAULT_SCRIPT, value, paramMap));

        value = null;
        assertEquals("", dataStore.convertValue(Constants.DEFAULT_SCRIPT, value, paramMap));

        value = "";
        assertEquals("", dataStore.convertValue(Constants.DEFAULT_SCRIPT, value, paramMap));

        value = " ";

            dataStore = dataStoreFactory.getDataStore(dataConfig.getHandlerName());
            if (dataStore == null) {
                logger.error("DataStore({}) is not found.", dataConfig.getHandlerName());
            } else {
                try {
                    dataStore.store(dataConfig, indexUpdateCallback, initParamMap);

        assertEquals("fess-ds-atlassian", artifact.getName());
        assertEquals("13.2.0", artifact.getVersion());
    }

    @Test
    public void test_getArtifactFromFileName2() {
        Artifact artifact = pluginHelper.getArtifactFromFileName(ArtifactType.DATA_STORE, "fess-ds-atlassian-13.2.1-20190708.212247-1.jar");

import org.codelibs.fess.opensearch.config.exentity.DataConfig;
import org.codelibs.fess.util.ComponentUtil;

/**
 * The abstract class for DataStore.
 */
public abstract class AbstractDataStore implements DataStore {

    private static final Logger logger = LogManager.getLogger(AbstractDataStore.class);

    /**
     * The script type.
     */

    }

    private static class FastMockDataStoreFactory extends DataStoreFactory {
        @Override
        public DataStore getDataStore(String name) {
            return new FastMockDataStore();
        }
    }

    private static class FastMockDataStore implements DataStore {
        @Override
        public void store(DataConfig dataConfig, IndexUpdateCallback callback, DataStoreParams params) {

         * @return the corresponding artifact type, or UNKNOWN if no match is found
         */
        public static ArtifactType getType(final String name) {
            if (name.startsWith(DATA_STORE.getId())) {
                return DATA_STORE;
            }
            if (name.startsWith(THEME.getId())) {
                return THEME;
            }
            if (name.startsWith(INGEST.getId())) {

- **Elasticsearch / OpenSearch** - Direct data migration via bulk APIs
- **Apache Solr** - Document import via REST API
- **Database Systems** - Direct connection via DataStore plugins
- **File Systems** - SMB, FTP, local file crawling
- **Custom Systems** - REST API for bulk document indexing

---

## Pre-Migration Planning

### 1. Assessment Phase