Configuration and Utilities

import org.apache.phoenix.query.QueryServicesOptions;
import org.apache.phoenix.schema.ConnectionProperty;
import org.apache.phoenix.util.*;
import org.apache.hadoop.conf.Configuration;
import java.util.Properties;

public class QueryServicesOptions {
    // Connection settings
    public static final int DEFAULT_KEEP_ALIVE_MS = 60000;
    public static final int DEFAULT_THREAD_POOL_SIZE = 128;
    public static final boolean DEFAULT_QUEUE_SIZE_BIG = false;

    // Query execution settings
    public static final int DEFAULT_QUERY_TIMEOUT_MS = 600000;  // 10 minutes
    public static final int DEFAULT_THREAD_TIMEOUT_MS = 600000;
    public static final int DEFAULT_SPOOL_THRESHOLD_BYTES = 20971520;  // 20MB

    // Scan settings
    public static final int DEFAULT_SCAN_CACHE_SIZE = 1000;
    public static final int DEFAULT_MAX_SERVER_CACHE_SIZE = 104857600;  // 100MB
    public static final long DEFAULT_MAX_SERVER_CACHE_TIME_TO_LIVE_MS = 30000;

    // Index settings
    public static final boolean DEFAULT_INDEX_ASYNC_BUILD_ENABLED = true;
    public static final int DEFAULT_INDEX_HANDLER_COUNT = 30;

    // Statistics settings
    public static final boolean DEFAULT_STATS_GUIDEPOST_WIDTH_BYTES = 104857600;  // 100MB
    public static final boolean DEFAULT_STATS_UPDATE_FREQ_MS = 900000;  // 15 minutes

    // Get configuration values
    public static boolean getBoolean(String name, boolean defaultValue)
    public static int getInt(String name, int defaultValue)
    public static long getLong(String name, long defaultValue)
    public static String getString(String name, String defaultValue)
}

public enum ConnectionProperty {
    // Core connection properties
    PHOENIX_QUERY_TIMEOUT_MS("phoenix.query.timeoutMs", "Query timeout in milliseconds",
                             DataType.INTEGER, "600000", false),
    PHOENIX_QUERY_DATE_FORMAT_TIMEZONE("phoenix.query.dateFormatTimeZone",
                                     "Timezone for date formatting", DataType.STRING,
                                     QueryServicesOptions.DEFAULT_DATE_FORMAT_TIMEZONE, false),

    // Performance tuning
    SCAN_CACHE_SIZE("ScanCacheSize", "Number of rows to cache for scans",
                   DataType.INTEGER, "1000", false),
    AUTO_COMMIT("AutoCommit", "Auto commit transactions",
               DataType.BOOLEAN, "false", false),

    // Security and authentication
    AUTHENTICATION("Authentication", "Authentication method",
                  DataType.STRING, null, false),
    KERBEROS_PRINCIPAL("KerberosPrincipal", "Kerberos principal",
                      DataType.STRING, null, false),

    // Transaction settings
    TRANSACTIONAL("Transactional", "Enable transactional behavior",
                 DataType.BOOLEAN, "false", false),
    TRANSACTION_TIMEOUT("TransactionTimeout", "Transaction timeout in seconds",
                       DataType.INTEGER, "300", false);

    public String getPropertyName()
    public String getDescription()
    public DataType getDataType()
    public String getDefaultValue()
    public boolean isRequired()
    public Object getValue(String stringValue)
    public String toString(Object value)
}

// Set connection properties
Properties props = new Properties();
props.setProperty(ConnectionProperty.PHOENIX_QUERY_TIMEOUT_MS.getPropertyName(), "300000");
props.setProperty(ConnectionProperty.SCAN_CACHE_SIZE.getPropertyName(), "2000");
props.setProperty(ConnectionProperty.AUTO_COMMIT.getPropertyName(), "false");

// Create connection with properties
String url = "jdbc:phoenix:localhost:2181";
Connection connection = DriverManager.getConnection(url, props);

// Get property values from connection
PhoenixConnection phoenixConn = connection.unwrap(PhoenixConnection.class);
String timeoutValue = phoenixConn.getClientInfo(
    ConnectionProperty.PHOENIX_QUERY_TIMEOUT_MS.getPropertyName()
);
String cacheSize = phoenixConn.getClientInfo(
    ConnectionProperty.SCAN_CACHE_SIZE.getPropertyName()
);

System.out.println("Query timeout: " + timeoutValue + "ms");
System.out.println("Scan cache size: " + cacheSize);

// Validate property values
for (ConnectionProperty prop : ConnectionProperty.values()) {
    String value = props.getProperty(prop.getPropertyName());
    if (value != null) {
        try {
            Object validatedValue = prop.getValue(value);
            System.out.println(prop.getPropertyName() + " = " + validatedValue);
        } catch (IllegalArgumentException e) {
            System.err.println("Invalid value for " + prop.getPropertyName() + ": " + value);
        }
    }
}

public class ByteUtil {
    // Byte array concatenation
    public static byte[] concat(byte[]... arrays)
    public static byte[] concat(byte[] first, byte[] second)

    // Byte array comparison
    public static int compare(byte[] left, byte[] right)
    public static boolean equals(byte[] left, byte[] right)

    // Byte array utilities
    public static byte[] copyKeyBytesIfNecessary(ImmutableBytesWritable ptr)
    public static int getVarCharLength(byte[] bytes, int offset, int length)
    public static int calculateHashCode(ImmutableBytesWritable ptr)

    // Constants
    public static final byte[] EMPTY_BYTE_ARRAY = new byte[0];
    public static final ImmutableBytesWritable EMPTY_BYTE_ARRAY_PTR =
        new ImmutableBytesWritable(EMPTY_BYTE_ARRAY);
}

public class DateUtil {
    // Date formatting
    public static String DEFAULT_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
    public static String DEFAULT_MS_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss.SSS";

    // Date parsing and formatting
    public static Date parseDate(String dateString)
    public static Date parseDate(String dateString, String formatString)
    public static String formatDate(Date date)
    public static String formatDate(Date date, String formatString)

    // Timezone handling
    public static Date parseDate(String dateString, String formatString, TimeZone timeZone)
    public static String formatDate(Date date, String formatString, TimeZone timeZone)

    // Date arithmetic
    public static Date addDays(Date date, int days)
    public static Date addMonths(Date date, int months)
    public static Date addYears(Date date, int years)

    // Date comparison utilities
    public static boolean isSameDay(Date date1, Date date2)
    public static long daysBetween(Date startDate, Date endDate)
}

public class SchemaUtil {
    // Name formatting
    public static String getTableName(String schemaName, String tableName)
    public static String getColumnName(String familyName, String columnName)
    public static String getEscapedTableName(String schemaName, String tableName)

    // Name parsing
    public static String getSchemaNameFromFullName(String tableName)
    public static String getTableNameFromFullName(String fullTableName)

    // DDL utilities
    public static String getCreateTableStatement(PTable table)
    public static String getDropTableStatement(PName tableName)
    public static String getCreateIndexStatement(PTable index)

    // Schema validation
    public static void validateIdentifier(String identifier)
    public static boolean isValidIdentifier(String identifier)

    // Column utilities
    public static String getColumnDisplayName(byte[] cf, byte[] cq)
    public static byte[] getEmptyColumnFamily(PName defaultColumnFamily)
}

public class QueryUtil {
    // Query construction
    public static String constructSelectStatement(PTable table, List<PColumn> columns)
    public static String constructUpsertStatement(PTable table, List<PColumn> columns)
    public static String constructDeleteStatement(PTable table)

    // Parameter handling
    public static String bindParams(String query, List<Object> parameters)
    public static PreparedStatement setParameters(PreparedStatement stmt, List<Object> params)

    // Query analysis
    public static boolean isSelect(String sql)
    public static boolean isUpsert(String sql)
    public static boolean isDDL(String sql)

    // Result processing
    public static List<String> getColumnNames(ResultSetMetaData metaData)
    public static List<Object> getRowValues(ResultSet rs, ResultSetMetaData metaData)
}

public class ClientUtil {
    // Connection utilities
    public static PhoenixConnection getPhoenixConnection(Connection conn) throws SQLException
    public static boolean isConnectionClosed(Connection conn)
    public static void closeQuietly(Connection conn)
    public static void closeQuietly(Statement stmt)
    public static void closeQuietly(ResultSet rs)

    // Error handling
    public static SQLException parseServerException(SQLException e)
    public static boolean isRetryableException(SQLException e)
    public static void handleRetryableException(SQLException e, int maxRetries)

    // Performance utilities
    public static void enableQueryLogging(Connection conn)
    public static void disableQueryLogging(Connection conn)
    public static QueryMetrics getQueryMetrics(Statement stmt)
}

// ByteUtil operations
byte[] array1 = Bytes.toBytes("Hello");
byte[] array2 = Bytes.toBytes(" World");
byte[] combined = ByteUtil.concat(array1, array2);
String result = Bytes.toString(combined);  // "Hello World"

boolean areEqual = ByteUtil.equals(array1, array2);
int comparison = ByteUtil.compare(array1, array2);

// DateUtil operations
String dateString = "2023-12-25 14:30:00";
Date parsedDate = DateUtil.parseDate(dateString);
String formattedDate = DateUtil.formatDate(parsedDate, DateUtil.DEFAULT_MS_DATE_FORMAT);

// Add time periods
Date futureDate = DateUtil.addDays(parsedDate, 30);
Date nextMonth = DateUtil.addMonths(parsedDate, 1);
long daysDiff = DateUtil.daysBetween(parsedDate, futureDate);

System.out.println("Original date: " + formattedDate);
System.out.println("30 days later: " + DateUtil.formatDate(futureDate));
System.out.println("Days between: " + daysDiff);

// SchemaUtil operations
String fullTableName = SchemaUtil.getTableName("myschema", "users");
String escapedName = SchemaUtil.getEscapedTableName("my schema", "user table");
String schemaName = SchemaUtil.getSchemaNameFromFullName("myschema.users");

System.out.println("Full table name: " + fullTableName);
System.out.println("Escaped name: " + escapedName);
System.out.println("Schema name: " + schemaName);

// Validate identifiers
boolean isValid = SchemaUtil.isValidIdentifier("valid_name");
try {
    SchemaUtil.validateIdentifier("invalid-name!");
} catch (IllegalArgumentException e) {
    System.err.println("Invalid identifier: " + e.getMessage());
}

// QueryUtil operations
PTable table = connection.getTable(PNameFactory.newName("users"));
List<PColumn> columns = table.getColumns();

String selectQuery = QueryUtil.constructSelectStatement(table, columns);
String upsertQuery = QueryUtil.constructUpsertStatement(table, columns);

System.out.println("Generated SELECT: " + selectQuery);
System.out.println("Generated UPSERT: " + upsertQuery);

// ClientUtil operations
PhoenixConnection phoenixConn = ClientUtil.getPhoenixConnection(connection);
boolean isClosed = ClientUtil.isConnectionClosed(connection);

// Safe resource cleanup
Statement stmt = null;
ResultSet rs = null;
try {
    stmt = connection.createStatement();
    rs = stmt.executeQuery("SELECT COUNT(*) FROM users");
    // Process results...
} finally {
    ClientUtil.closeQuietly(rs);
    ClientUtil.closeQuietly(stmt);
}

public class CSVCommonsLoader {
    // Constructor
    public CSVCommonsLoader(PhoenixConnection conn, String tableName,
                           List<ColumnInfo> columns, boolean strict)

    // CSV loading
    public void upsert(String csvValue) throws SQLException
    public void upsert(InputStream inputStream) throws SQLException
    public void upsert(Reader reader) throws SQLException

    // Configuration
    public void setDelimiter(char delimiter)
    public void setQuoteChar(char quoteChar)
    public void setEscapeChar(char escapeChar)
    public void setArrayElementSeparator(String separator)

    // Statistics
    public long getUpsertCount()
    public long getErrorCount()
}

public class ColumnInfo {
    // Constructor
    public ColumnInfo(String columnName, int sqlType)
    public ColumnInfo(String columnName, int sqlType, String columnDisplayName)

    // Column properties
    public String getColumnName()
    public int getSqlType()
    public String getColumnDisplayName()
    public PDataType getDataType()

    // Type-specific settings
    public Integer getPrecision()
    public Integer getScale()
    public void setPrecision(Integer precision)
    public void setScale(Integer scale)

    // Array handling
    public boolean isArrayType()
    public String getArrayElementSeparator()
    public void setArrayElementSeparator(String separator)
}

// Set up column information for CSV loading
List<ColumnInfo> columns = Arrays.asList(
    new ColumnInfo("id", Types.BIGINT),
    new ColumnInfo("name", Types.VARCHAR),
    new ColumnInfo("email", Types.VARCHAR),
    new ColumnInfo("salary", Types.DECIMAL),
    new ColumnInfo("hire_date", Types.DATE),
    new ColumnInfo("skills", Types.ARRAY)  // Array column
);

// Configure decimal precision
ColumnInfo salaryColumn = columns.get(3);
salaryColumn.setPrecision(10);
salaryColumn.setScale(2);

// Configure array separator
ColumnInfo skillsColumn = columns.get(5);
skillsColumn.setArrayElementSeparator("|");

// Create CSV loader
PhoenixConnection phoenixConn = connection.unwrap(PhoenixConnection.class);
CSVCommonsLoader csvLoader = new CSVCommonsLoader(phoenixConn, "employees", columns, true);

// Configure CSV format
csvLoader.setDelimiter(',');
csvLoader.setQuoteChar('"');
csvLoader.setEscapeChar('\\');

// Load CSV data
String csvData = """
    1,"John Doe","john@example.com",75000.50,"2023-01-15","Java|Python|SQL"
    2,"Jane Smith","jane@example.com",82000.00,"2023-02-01","Python|JavaScript|React"
    3,"Bob Johnson","bob@example.com",68000.75,"2023-03-10","Java|Spring|Hibernate"
    """;

try (StringReader reader = new StringReader(csvData)) {
    csvLoader.upsert(reader);
}

// Get loading statistics
long upsertCount = csvLoader.getUpsertCount();
long errorCount = csvLoader.getErrorCount();

System.out.println("Records loaded: " + upsertCount);
System.out.println("Errors: " + errorCount);

// Load from file
try (FileInputStream fileInput = new FileInputStream("employees.csv")) {
    csvLoader.upsert(fileInput);
}

// Comprehensive connection configuration
public Properties createPhoenixProperties() {
    Properties props = new Properties();

    // Query settings
    props.setProperty(ConnectionProperty.PHOENIX_QUERY_TIMEOUT_MS.getPropertyName(), "900000"); // 15 minutes
    props.setProperty(ConnectionProperty.SCAN_CACHE_SIZE.getPropertyName(), "5000");
    props.setProperty(ConnectionProperty.AUTO_COMMIT.getPropertyName(), "false");

    // Date/time settings
    props.setProperty(ConnectionProperty.PHOENIX_QUERY_DATE_FORMAT_TIMEZONE.getPropertyName(), "UTC");

    // Performance tuning
    props.setProperty("phoenix.query.spoolThresholdBytes", "52428800"); // 50MB
    props.setProperty("phoenix.query.maxGlobalMemoryPercentage", "20");
    props.setProperty("phoenix.query.targetConcurrency", "16");

    // Retry settings
    props.setProperty("phoenix.query.maxRetries", "5");
    props.setProperty("phoenix.query.retryInitialBackoffMs", "1000");

    // Security settings (if needed)
    // props.setProperty(ConnectionProperty.AUTHENTICATION.getPropertyName(), "KERBEROS");
    // props.setProperty(ConnectionProperty.KERBEROS_PRINCIPAL.getPropertyName(), "user@REALM");

    return props;
}

// Use configured connection
Properties props = createPhoenixProperties();
String url = "jdbc:phoenix:zk1,zk2,zk3:2181:/hbase";
Connection connection = DriverManager.getConnection(url, props);

// Configure Phoenix for high-performance workloads
public class PerformanceTuningConfig {
    public static void configureForBulkOperations(PhoenixConnection connection) throws SQLException {
        // Increase batch sizes
        connection.setClientInfo("phoenix.mutate.batchSize", "10000");
        connection.setClientInfo("phoenix.query.maxGlobalMemorySize", "2147483648"); // 2GB

        // Optimize scans
        connection.setClientInfo("phoenix.scan.cacheSize", "10000");
        connection.setClientInfo("phoenix.scan.maxResultSize", "104857600"); // 100MB

        // Disable auto-commit for batch operations
        connection.setAutoCommit(false);
    }

    public static void configureForOLTP(PhoenixConnection connection) throws SQLException {
        // Optimize for small, fast queries
        connection.setClientInfo("phoenix.scan.cacheSize", "100");
        connection.setClientInfo("phoenix.query.timeoutMs", "30000"); // 30 seconds

        // Enable auto-commit for single operations
        connection.setAutoCommit(true);
    }

    public static void configureForAnalytics(PhoenixConnection connection) throws SQLException {
        // Optimize for large analytical queries
        connection.setClientInfo("phoenix.query.timeoutMs", "1800000"); // 30 minutes
        connection.setClientInfo("phoenix.scan.cacheSize", "1000");
        connection.setClientInfo("phoenix.query.maxGlobalMemoryPercentage", "40");

        // Use larger spool threshold
        connection.setClientInfo("phoenix.query.spoolThresholdBytes", "209715200"); // 200MB
    }
}

// Apply performance configurations
PhoenixConnection phoenixConn = connection.unwrap(PhoenixConnection.class);

// For bulk data loading
PerformanceTuningConfig.configureForBulkOperations(phoenixConn);

// For OLTP workload
// PerformanceTuningConfig.configureForOLTP(phoenixConn);

// For analytics workload
// PerformanceTuningConfig.configureForAnalytics(phoenixConn);

// Helper class for common Phoenix operations
public class PhoenixHelper {
    private final PhoenixConnection connection;

    public PhoenixHelper(Connection connection) throws SQLException {
        this.connection = connection.unwrap(PhoenixConnection.class);
    }

    public void createTableIfNotExists(String tableName, String ddl) throws SQLException {
        try {
            PTable table = connection.getTable(PNameFactory.newName(tableName));
            System.out.println("Table " + tableName + " already exists");
        } catch (TableNotFoundException e) {
            Statement stmt = connection.createStatement();
            stmt.execute(ddl);
            System.out.println("Created table: " + tableName);
            ClientUtil.closeQuietly(stmt);
        }
    }

    public long getTableRowCount(String tableName) throws SQLException {
        String sql = "SELECT COUNT(*) FROM " + SchemaUtil.getEscapedTableName(null, tableName);
        try (Statement stmt = connection.createStatement();
             ResultSet rs = stmt.executeQuery(sql)) {
            if (rs.next()) {
                return rs.getLong(1);
            }
            return 0;
        }
    }

    public List<String> getTableNames(String schemaName) throws SQLException {
        DatabaseMetaData metaData = connection.getMetaData();
        List<String> tableNames = new ArrayList<>();

        try (ResultSet rs = metaData.getTables(null, schemaName, "%", new String[]{"TABLE"})) {
            while (rs.next()) {
                String tableName = rs.getString("TABLE_NAME");
                tableNames.add(tableName);
            }
        }

        return tableNames;
    }

    public void optimizeTable(String tableName) throws SQLException {
        // Update statistics for better query planning
        String sql = "UPDATE STATISTICS " + SchemaUtil.getEscapedTableName(null, tableName);
        try (Statement stmt = connection.createStatement()) {
            stmt.execute(sql);
            System.out.println("Updated statistics for table: " + tableName);
        }
    }
}

// Usage
PhoenixHelper helper = new PhoenixHelper(connection);

// Create table if it doesn't exist
String createTableDDL = """
    CREATE TABLE IF NOT EXISTS products (
        id BIGINT PRIMARY KEY,
        name VARCHAR(100),
        price DECIMAL(10,2),
        category VARCHAR(50)
    )
    """;
helper.createTableIfNotExists("products", createTableDDL);

// Get table information
long rowCount = helper.getTableRowCount("products");
List<String> allTables = helper.getTableNames("PUBLIC");

System.out.println("Products table has " + rowCount + " rows");
System.out.println("All tables: " + allTables);

// Optimize table
helper.optimizeTable("products");