<property name="charset">"UTF-8"</property>
	</component>

	<component name="s3Client"
		class="org.codelibs.fess.crawler.client.s3.S3Client" instance="prototype">
		<property name="charset">"UTF-8"</property>
	</component>

	<component name="gcsClient"
		class="org.codelibs.fess.crawler.client.gcs.GcsClient" instance="prototype">
		<property name="charset">"UTF-8"</property>
	</component>

    public void test_initialization_idempotency() {
        // Test that multiple init calls are safe
        FileSystemClient client = new FileSystemClient();

        // First initialization
        if (client.isInit.compareAndSet(false, true)) {
            client.init();
        }
        assertTrue("Client should be initialized", client.isInit.get());

        // Second initialization attempt should be no-op

    /**
     * Constructor for ESSourceReader.
     * @param client The OpenSearch client.
     * @param settings The SuggestSettings instance.
     * @param indexName The name of the index to read from.
     */
    public ESSourceReader(final Client client, final SuggestSettings settings, final String indexName) {
        this.client = client;
        this.settings = settings;
        this.indexName = indexName;

import io.minio.messages.Item;
import io.minio.messages.Tags;
import jakarta.annotation.Resource;

/**
 * A crawler client implementation for accessing and retrieving content from storage systems using MinIO.
 * This client supports operations on object storage systems compatible with S3 protocol.
 *
 * <p>This client requires the following initialization parameters:
 * <ul>
 *   <li>endpoint - The URL of the MinIO server</li>

import software.amazon.awssdk.services.s3.model.Tag;

/**
 * A crawler client implementation for accessing and retrieving content from S3-compatible storage systems
 * using AWS SDK v2. This client supports operations on Amazon S3 and S3-compatible storage systems.
 *
 * <p>This client requires the following initialization parameters:
 * <ul>
 *   <li>endpoint - The URL of the S3-compatible server</li>

import com.google.cloud.storage.StorageOptions;

import jakarta.annotation.Resource;

/**
 * A crawler client implementation for accessing and retrieving content from Google Cloud Storage.
 * This client supports operations on GCS buckets and objects.
 *
 * <p>This client requires the following initialization parameters:
 * <ul>
 *   <li>projectId - The Google Cloud project ID</li>

All public classes and methods require JavaDoc with `@param`, `@return`, and `@throws` tags.

### Best Practices

**Null Safety:**
```java
public Suggester(final Client client, final SuggestSettings settings) {
    this.client = Objects.requireNonNull(client, "client must not be null");
    this.settings = Objects.requireNonNull(settings, "settings must not be null");
}
```

**Logging with Context:**
```java

        int treeConnectCreate = config.getBatchLimit("TreeConnectAndX.CreateDirectory");
        assertTrue(treeConnectCreate >= 0, "TreeConnectAndX.CreateDirectory batch limit should be non-negative");
    }

    /**
     * Test that batch limit respects Unicode settings
     */
    @Test
    @DisplayName("Batch limit configuration with Unicode enabled")

// Create crawler with custom configuration
StandardCrawlerContainer container = new StandardCrawlerContainer();

// Configure HTTP client with custom settings
container.singleton("httpClient", HcHttpClient.class, client -> {
    client.setUserAgent("MyBot/1.0");
    client.setConnectionTimeout(30000);
    client.setMaxConnections(100);
});

// Configure URL filtering
container.singleton("urlFilter", UrlFilterImpl.class, filter -> {

        try (ResponseData responseData = client.doGet(baseUrl + "file1.txt")) {
            assertEquals(200, responseData.getHttpStatusCode());
        }
    }

    public void test_customCharset() throws Exception {
        SmbClient client = new SmbClient();
        client.setCharset("ISO-8859-1");
        client.setResolveSids(false);
        assertEquals("ISO-8859-1", client.getCharset());