Configuration

/**
 * Configuration options for Hive connector operations
 */
public class HiveOptions {
    /**
     * Whether to use Hadoop MapRed record reader for ORC files
     * Default: false
     */
    public static final ConfigOption<Boolean> TABLE_EXEC_HIVE_FALLBACK_MAPRED_READER =
        ConfigOptions.key("table.exec.hive.fallback-mapred-reader")
            .defaultValue(false)
            .withDescription(
                "If it is false, using flink native vectorized reader to read orc files; " +
                "If it is true, using hadoop mapred record reader to read orc files.");
    
    /**
     * Whether to infer source parallelism based on splits
     * Default: true
     */
    public static final ConfigOption<Boolean> TABLE_EXEC_HIVE_INFER_SOURCE_PARALLELISM =
        ConfigOptions.key("table.exec.hive.infer-source-parallelism")
            .defaultValue(true)
            .withDescription(
                "If is false, parallelism of source are set by config.\n" +
                "If is true, source parallelism is inferred according to splits number.\n");
    
    /**
     * Maximum inferred parallelism for source operator
     * Default: 1000
     */
    public static final ConfigOption<Integer> TABLE_EXEC_HIVE_INFER_SOURCE_PARALLELISM_MAX =
        ConfigOptions.key("table.exec.hive.infer-source-parallelism.max")
            .defaultValue(1000)
            .withDescription("Sets max infer parallelism for source operator.");
    
    /**
     * Whether to use Hadoop MapRed record writer for Parquet and ORC files
     * Default: true
     */
    public static final ConfigOption<Boolean> TABLE_EXEC_HIVE_FALLBACK_MAPRED_WRITER =
        ConfigOptions.key("table.exec.hive.fallback-mapred-writer")
            .booleanType()
            .defaultValue(true)
            .withDescription(
                "If it is false, using flink native writer to write parquet and orc files; " +
                "If it is true, using hadoop mapred record writer to write parquet and orc files.");
}

/**
 * Factory for creating HiveCatalog instances with configuration validation
 */
public class HiveCatalogFactory implements CatalogFactory {
    /**
     * Get the factory identifier for service discovery
     * @return "hive" identifier string
     */
    public String factoryIdentifier();
    
    /**
     * Create HiveCatalog from configuration context
     * @param context - Factory context with configuration options
     * @return Configured HiveCatalog instance
     */
    public Catalog createCatalog(Context context);
    
    /**
     * Get required configuration options
     * @return Set of required ConfigOption objects (empty for Hive)
     */
    public Set<ConfigOption<?>> requiredOptions();
    
    /**
     * Get optional configuration options
     * @return Set of optional ConfigOption objects
     */
    public Set<ConfigOption<?>> optionalOptions();
}

/**
 * Configuration options for HiveCatalogFactory
 */
public class HiveCatalogFactoryOptions {
    /**
     * Factory identifier for service discovery
     */
    public static final String IDENTIFIER = "hive";
    
    /**
     * Default database name for the catalog
     * Default: "default"
     */
    public static final ConfigOption<String> DEFAULT_DATABASE =
        ConfigOptions.key("default-database")
            .stringType()
            .defaultValue("default")
            .withDescription("Default database name for the catalog.");
    
    /**
     * Directory containing hive-site.xml configuration file
     * Default: null (uses classpath)
     */
    public static final ConfigOption<String> HIVE_CONF_DIR =
        ConfigOptions.key("hive-conf-dir")
            .stringType()
            .noDefaultValue()
            .withDescription("Directory containing hive-site.xml configuration file.");
    
    /**
     * Directory containing Hadoop configuration files
     * Default: null (uses classpath)
     */
    public static final ConfigOption<String> HADOOP_CONF_DIR =
        ConfigOptions.key("hadoop-conf-dir")
            .stringType()
            .noDefaultValue()
            .withDescription("Directory containing Hadoop configuration files.");
    
    /**
     * Hive version string for compatibility
     * Default: null (auto-detected)
     */
    public static final ConfigOption<String> HIVE_VERSION =
        ConfigOptions.key("hive-version")
            .stringType()
            .noDefaultValue()
            .withDescription("Hive version string for compatibility.");
}

/**
 * Factory for creating HiveModule instances
 */
public class HiveModuleFactory implements ModuleFactory {
    /**
     * Get the factory identifier
     * @return "hive" identifier string
     */
    public String factoryIdentifier();
    
    /**
     * Create HiveModule from configuration context
     * @param context - Factory context with configuration options
     * @return Configured HiveModule instance
     */
    public Module createModule(Context context);
    
    /**
     * Get required configuration options
     * @return Set of required ConfigOption objects (empty for Hive module)
     */
    public Set<ConfigOption<?>> requiredOptions();
    
    /**
     * Get optional configuration options  
     * @return Set of optional ConfigOption objects
     */  
    public Set<ConfigOption<?>> optionalOptions();
}

/**
 * Configuration options for HiveModule
 */
public class HiveModuleOptions {
    /**
     * Hive version for function compatibility
     * Default: null (uses latest supported)
     */
    public static final ConfigOption<String> HIVE_VERSION =
        ConfigOptions.key("hive-version")
            .stringType()
            .noDefaultValue()
            .withDescription("Hive version for function compatibility.");
}

/**
 * Configuration options from FileSystemConnectorOptions used by Hive connector
 */
public class FileSystemConnectorOptions {
    /**
     * Enable streaming source mode for partition monitoring
     * Default: false
     */
    public static final ConfigOption<Boolean> STREAMING_SOURCE_ENABLE =
        ConfigOptions.key("streaming-source.enable")
            .booleanType()
            .defaultValue(false)
            .withDescription("Enable streaming source mode for partition monitoring.");
    
    /**
     * Which partitions to include in streaming mode
     * Options: "all", "latest"
     * Default: "all"
     */
    public static final ConfigOption<String> STREAMING_SOURCE_PARTITION_INCLUDE =
        ConfigOptions.key("streaming-source.partition.include")
            .stringType()
            .defaultValue("all")
            .withDescription("Which partitions to include: 'all' or 'latest'.");
    
    /**
     * Interval for monitoring new partitions (in milliseconds)
     * Default: 60000 (1 minute)
     */
    public static final ConfigOption<Long> STREAMING_SOURCE_MONITOR_INTERVAL =
        ConfigOptions.key("streaming-source.monitor-interval")
            .longType()
            .defaultValue(60000L)
            .withDescription("Interval for monitoring new partitions in milliseconds.");
    
    /**
     * Configured parallelism for sink operations
     * Default: null (uses default parallelism)
     */
    public static final ConfigOption<Integer> SINK_PARALLELISM =
        ConfigOptions.key("sink.parallelism")
            .intType()
            .noDefaultValue()
            .withDescription("Configured parallelism for sink operations.");
}

/**
 * Utilities for managing Hive configuration
 */
public class HiveConfUtils {
    /**
     * Create HiveConf from configuration directory
     * @param hiveConfDir - Directory containing hive-site.xml (can be null)
     * @return Configured HiveConf instance
     */
    public static HiveConf create(String hiveConfDir);
    
    /**
     * Get Hive configuration with custom properties
     * @param hiveConf - Base Hive configuration
     * @param customProps - Additional properties to set
     * @return Updated HiveConf instance
     */
    public static HiveConf create(HiveConf hiveConf, Map<String, String> customProps);
}

/**
 * Utilities for managing Hadoop JobConf
 */
public class JobConfUtils {
    /**
     * Create JobConf with security credentials
     * @param hiveConf - Hive configuration to base JobConf on
     * @return JobConf with security credentials configured
     */
    public static JobConf createJobConfWithCredentials(HiveConf hiveConf);
    
    /**
     * Create JobConf with custom properties
     * @param hiveConf - Base Hive configuration
     * @param extraConf - Additional configuration properties
     * @return Configured JobConf instance
     */
    public static JobConf createJobConf(HiveConf hiveConf, Map<String, String> extraConf);
}

/**
 * Factory for creating Hadoop FileSystem instances
 */
public class HadoopFileSystemFactory {
    /**
     * Create file system factory with configuration
     * @param hadoopConf - Hadoop configuration
     */
    public HadoopFileSystemFactory(org.apache.hadoop.conf.Configuration hadoopConf);
    
    /**
     * Create file system for given URI
     * @param fsUri - File system URI
     * @return FileSystem instance
     * @throws IOException if creation fails
     */
    public FileSystem create(URI fsUri) throws IOException;
}

/**
 * Configuration options for dynamic table operations
 */
public class HiveDynamicTableFactory implements DynamicTableSourceFactory, DynamicTableSinkFactory {
    /**
     * Get factory identifier (throws UnsupportedOperationException)
     * Hive factory only works through catalog, not standalone
     * @return Not supported
     * @throws UnsupportedOperationException always
     */
    public String factoryIdentifier();
    
    /**
     * Get required options (throws UnsupportedOperationException)  
     * @return Not supported
     * @throws UnsupportedOperationException always
     */
    public Set<ConfigOption<?>> requiredOptions();
    
    /**
     * Get optional options (throws UnsupportedOperationException)
     * @return Not supported  
     * @throws UnsupportedOperationException always
     */
    public Set<ConfigOption<?>> optionalOptions();
    
    /**
     * Create dynamic table source based on context
     * @param context - Creation context with catalog table info
     * @return DynamicTableSource implementation
     */
    public DynamicTableSource createDynamicTableSource(Context context);
    
    /**
     * Create dynamic table sink based on context
     * @param context - Creation context with catalog table info
     * @return DynamicTableSink implementation
     */
    public DynamicTableSink createDynamicTableSink(Context context);
}

import org.apache.flink.table.api.TableEnvironment;
import org.apache.flink.configuration.Configuration;
import org.apache.flink.connectors.hive.HiveOptions;

// Configure Hive connector options
Configuration config = new Configuration();

// Use native Flink readers for better performance
config.setBoolean(HiveOptions.TABLE_EXEC_HIVE_FALLBACK_MAPRED_READER, false);

// Use native Flink writers for better performance
config.setBoolean(HiveOptions.TABLE_EXEC_HIVE_FALLBACK_MAPRED_WRITER, false);

// Enable source parallelism inference
config.setBoolean(HiveOptions.TABLE_EXEC_HIVE_INFER_SOURCE_PARALLELISM, true);
config.setInteger(HiveOptions.TABLE_EXEC_HIVE_INFER_SOURCE_PARALLELISM_MAX, 500);

// Create table environment with configuration
TableEnvironment tableEnv = TableEnvironment.create(
    EnvironmentSettings.newInstance()
        .inBatchMode()
        .withConfiguration(config)
        .build()
);

// Create Hive catalog with full configuration options
Map<String, String> catalogOptions = new HashMap<>();
catalogOptions.put("type", "hive");
catalogOptions.put("default-database", "analytics");
catalogOptions.put("hive-conf-dir", "/opt/hive/conf");
catalogOptions.put("hadoop-conf-dir", "/opt/hadoop/etc/hadoop");
catalogOptions.put("hive-version", "2.3.6");

// Use catalog factory to create catalog
CatalogFactory.Context context = new CatalogFactory.Context() {
    public String getName() { return "hive_catalog"; }
    public Map<String, String> getOptions() { return catalogOptions; }
    public ReadableConfig getConfiguration() { return Configuration.fromMap(catalogOptions); }
    public ClassLoader getClassLoader() { return Thread.currentThread().getContextClassLoader(); }
};

HiveCatalogFactory factory = new HiveCatalogFactory();
Catalog hiveCatalog = factory.createCatalog(context);

tableEnv.registerCatalog("hive_catalog", hiveCatalog);
tableEnv.useCatalog("hive_catalog");

// Configure streaming Hive source
tableEnv.executeSql(
    "CREATE TABLE streaming_events (" +
    "  event_id BIGINT," +
    "  user_id BIGINT," +
    "  event_time TIMESTAMP(3)," +
    "  event_type STRING," +
    "  partition_date STRING" +
    ") PARTITIONED BY (partition_date) " +
    "STORED AS PARQUET " +
    "TBLPROPERTIES (" +
    "  'streaming-source.enable' = 'true'," +
    "  'streaming-source.partition.include' = 'all'," +
    "  'streaming-source.monitor-interval' = '30000'" + // 30 seconds
    ")"
);

// Query streaming table
Table result = tableEnv.sqlQuery(
    "SELECT event_type, COUNT(*) as event_count " +
    "FROM streaming_events " +
    "WHERE event_time >= CURRENT_TIMESTAMP - INTERVAL '1' HOUR " +
    "GROUP BY event_type"
);

// Load Hive module with specific version
Map<String, String> moduleOptions = new HashMap<>();
moduleOptions.put("hive-version", "2.3.6");

ModuleFactory.Context moduleContext = new ModuleFactory.Context() {
    public Map<String, String> getOptions() { return moduleOptions; }
    public ReadableConfig getConfiguration() { return Configuration.fromMap(moduleOptions); }
    public ClassLoader getClassLoader() { return Thread.currentThread().getContextClassLoader(); }
};

HiveModuleFactory moduleFactory = new HiveModuleFactory();
Module hiveModule = moduleFactory.createModule(moduleContext);

tableEnv.loadModule("hive", hiveModule);

public interface ConfigOption<T> {
    /**
     * Get the option key
     * @return Configuration key string
     */
    String key();
    
    /**
     * Get the default value
     * @return Default value for this option
     */
    T defaultValue();
    
    /**
     * Get the option description
     * @return Human-readable description
     */
    String description();
}

public interface CatalogFactory extends Factory {
    /**
     * Create catalog from context
     * @param context - Creation context
     * @return Catalog instance
     */
    Catalog createCatalog(Context context);
    
    /**
     * Context interface for catalog creation
     */
    interface Context {
        String getName();
        Map<String, String> getOptions();
        ReadableConfig getConfiguration();
        ClassLoader getClassLoader();
    }
}

public interface ModuleFactory extends Factory {
    /**
     * Create module from context
     * @param context - Creation context
     * @return Module instance
     */
    Module createModule(Context context);
    
    /**
     * Context interface for module creation
     */
    interface Context {
        Map<String, String> getOptions();
        ReadableConfig getConfiguration();
        ClassLoader getClassLoader();
    }
}

public interface Factory {
    /**
     * Get unique factory identifier
     * @return Factory identifier string
     */
    String factoryIdentifier();
    
    /**
     * Get required configuration options
     * @return Set of required options
     */
    Set<ConfigOption<?>> requiredOptions();
    
    /**
     * Get optional configuration options
     * @return Set of optional options
     */
    Set<ConfigOption<?>> optionalOptions();
}