import java.util.stream.Collectors;
import java.util.stream.StreamSupport;

import org.apache.hc.client5.http.config.ConnectionConfig;
import org.apache.hc.client5.http.config.RequestConfig;
import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
import org.apache.hc.client5.http.impl.classic.HttpClients;
import org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManagerBuilder;
import org.apache.hc.core5.util.Timeout;

		</dependency>
		<dependency>
			<groupId>com.google.oauth-client</groupId>
			<artifactId>google-oauth-client</artifactId>
			<version>${google.oauth.client.version}</version>
		</dependency>
		<dependency>
			<groupId>com.google.http-client</groupId>
			<artifactId>google-http-client</artifactId>
			<version>${google.http.client.version}</version>
			<exclusions>
				<exclusion>

    }

    // Test multiple instances
    @Test
    public void test_multipleInstances() {
        // Test that multiple instances can be created independently
        CrawlerEngineClient client1 = new CrawlerEngineClient();
        CrawlerEngineClient client2 = new CrawlerEngineClient();

        assertNotNull(client1);
        assertNotNull(client2);

                        client.isAvailable());
            }
            return client;
        }
        // Fallback: search registered clients
        for (final LlmClient client : clientList) {
            if (llmType.equals(client.getName())) {
                if (logger.isTraceEnabled()) {
                    logger.trace("[LLM] LlmClient found via registration. name={}", client.getName());
                }

                final String clientIp = xRealIp.trim();
                if (logger.isDebugEnabled()) {
                    logger.debug("Client IP from X-Real-IP: clientIp={}, remoteAddr={}", clientIp, remoteAddr);
                }
                return clientIp;
            }
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Client IP from remoteAddr: ip={}", remoteAddr);
        }

     * @return the number of documents processed
     */
    public static long scroll(final String index, final Function<SearchHit, Boolean> callback) {
        final SearchEngineClient client = ComponentUtil.getSearchEngineClient();
        return client.<SearchHit> scrollSearch(index, searchRequestBuilder -> true, (searchResponse, hit) -> hit,
                hit -> callback.apply(hit));
    }

    /**

        assertEquals(0, result.get(ConfigName.CLIENT).size());

        // Test with client parameters
        configParameters = "client.host=localhost\nclient.port=9200";
        result = ParameterUtil.createConfigParameterMap(configParameters);
        assertEquals(2, result.get(ConfigName.CLIENT).size());
        assertEquals("localhost", result.get(ConfigName.CLIENT).get("host"));

    /**
     * Returns the name of this LLM client.
     *
     * @return the client name (e.g., "ollama", "openai", "gemini")
     */
    String getName();

    /**
     * Checks if this LLM client is available and properly configured.
     *
     * @return true if the client is available, false otherwise
     */
    boolean isAvailable();

    // RAG workflow methods

        assertEquals("https://accounts.google.com/o/oauth2/token", url);
    }

    @Test
    public void test_getOicClientId_default() {
        final String clientId = authenticator.getOicClientId();
        assertEquals("", clientId);
    }

    @Test
    public void test_getOicClientSecret_default() {
        final String secret = authenticator.getOicClientSecret();
        assertEquals("", secret);

    /**
     * Retrieves the appropriate crawler client for the given URL based on configured rules.
     * This method uses client rules to determine which specific client implementation
     * should be used for crawling the URL, falling back to the default client if no
     * specific rule matches.
     *
     * @param url the URL to get a client for
     * @return the crawler client instance to use for the URL
     */
    @Override