Exemplo do JDBC de Descoberta e classificação de dados do SQL
Este aplicativo de exemplo do Microsoft JDBC Driver para SQL Server demonstra como usar os métodos getter do conjunto de resultados para recuperar "informações de descoberta e classificação de dados do SQL" do SQL Server das tabelas que contêm essas informações.
O arquivo de código desta amostra chama-se DataDiscoveryAndClassification.java e pode ser encontrado na seguinte localização:
\<installation directory>\sqljdbc_<version>\<language>\samples\dataclassification
Requisitos
Para executar este aplicativo de exemplo, é necessário definir o classpath para incluir o arquivo mssql-jdbc.jar. Também será necessário ter acesso ao banco de dados de exemplo AdventureWorks2022. Para obter mais informações sobre como definir o caminho de classe, confira Como usar o JDBC Driver.
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
import com.microsoft.sqlserver.jdbc.SQLServerResultSet;
import com.microsoft.sqlserver.jdbc.dataclassification.SensitivityProperty;
public class DataDiscoveryAndClassification {
private static boolean featureSupported = false;
public static void main(String[] args) {
// Provides table name to be used for running test.
String tableName = "JDBC_SQL_DATA_DISCOVERY_CLASSIFICATION";
// Create a variable for the connection string.
String connectionUrl = "jdbc:sqlserver://<server>:<port>;encrypt=true;databaseName=<database>;username=<user>;password=<password>;";
// Establish the connection.
try (Connection con = DriverManager.getConnection(connectionUrl); Statement stmt = con.createStatement()) {
verifySupportability(stmt);
if (featureSupported) {
createTable(stmt, tableName);
runTests(stmt, tableName);
drop_table(stmt, tableName);
}
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Verifies if SQL Discovery and Classification feature is applicable on target server.
*
* @param stmt
* Statement object to work with
*/
private static void verifySupportability(Statement stmt) {
try {
stmt.execute("SELECT * FROM SYS.SENSITIVITY_CLASSIFICATIONS");
featureSupported = true;
} catch (SQLException e) {
// Error Code 208 : Object Not Found
if (e.getErrorCode() == 208) {
featureSupported = false;
System.err.println("This feature is not supported on the target SQL Server.");
}
}
}
/**
* Creates table for the test and sets tags for Sensitivity Classification
*
* @param stmt
* Statement to work with
* @param tableName
* Table to be created
* @throws SQLException
* If an exception occurs
*/
private static void createTable(Statement stmt, String tableName) throws SQLException {
// Creates table for storing Supplier data
stmt.execute("CREATE TABLE " + tableName + " (" + "[Id] [int] IDENTITY(1,1) NOT NULL,"
+ "[CompanyName] [nvarchar](40) NOT NULL," + "[ContactName] [nvarchar](50) NULL,"
+ "[ContactTitle] [nvarchar](40) NULL," + "[City] [nvarchar](40) NULL,"
+ "[Country] [nvarchar](40) NULL," + "[Phone] [nvarchar](30) MASKED WITH (FUNCTION = 'default()') NULL,"
+ "[Fax] [nvarchar](30) MASKED WITH (FUNCTION = 'default()') NULL," + "CONSTRAINT [PK_" + tableName
+ "] PRIMARY KEY CLUSTERED" + "([Id] ASC "
+ ")WITH (STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]" + ") ON [PRIMARY]");
// Set Sensitivity Classification tags to table columns
stmt.execute("ADD SENSITIVITY CLASSIFICATION TO " + tableName
+ ".CompanyName WITH (LABEL='PII', LABEL_ID='L1', INFORMATION_TYPE='Company name', INFORMATION_TYPE_ID='COMPANY', RANK='LOW')");
stmt.execute("ADD SENSITIVITY CLASSIFICATION TO " + tableName
+ ".ContactName WITH (LABEL='PII', LABEL_ID='L1', INFORMATION_TYPE='Person name', INFORMATION_TYPE_ID='NAME', RANK='MEDIUM')");
stmt.execute("ADD SENSITIVITY CLASSIFICATION TO " + tableName
+ ".Phone WITH (LABEL='PII', LABEL_ID='L1', INFORMATION_TYPE='Contact Information', INFORMATION_TYPE_ID='CONTACT', RANK='HIGH')");
stmt.execute("ADD SENSITIVITY CLASSIFICATION TO " + tableName
+ ".Fax WITH (LABEL='PII', LABEL_ID='L1', INFORMATION_TYPE='Contact Information', INFORMATION_TYPE_ID='CONTACT', RANK='CRITICAL')");
}
/**
* Runs query to fetch ResultSet from target table
*
* @param stmt
* Statement to work with
* @param tableName
* Name of table to fetch results from
* @throws SQLException
* If an exception occurs
*/
private static void runTests(Statement stmt, String tableName) throws SQLException {
String query = "SELECT * FROM " + tableName;
try (SQLServerResultSet rs = (SQLServerResultSet) stmt.executeQuery(query)) {
printSensitivityClassification(rs);
}
}
/**
* Prints Sensitivity Classification data as received in ResultSet
*
* @param rs
* Active ResultSet to read data from
* @throws SQLException
* If an exception occurs
*/
private static void printSensitivityClassification(SQLServerResultSet rs) throws SQLException {
if (null != rs.getSensitivityClassification()) {
for (int columnPos = 0; columnPos < rs.getSensitivityClassification().getColumnSensitivities().size();
columnPos++) {
for (SensitivityProperty sp : rs.getSensitivityClassification().getColumnSensitivities().get(columnPos)
.getSensitivityProperties()) {
if (sp.getLabel() != null) {
System.out.println("Labels received for Column : " + columnPos);
System.out.println("Label ID: " + sp.getLabel().getId());
System.out.println("Label Name: " + sp.getLabel().getName());
System.out.println();
}
if (sp.getInformationType() != null) {
System.out.println("Information Types received for Column : " + columnPos);
System.out.println("Information Type ID: " + sp.getInformationType().getId());
System.out.println("Information Type Name: " + sp.getInformationType().getName());
System.out.println();
}
System.out.println("Rank: " + sp.getSensitivityRank());
}
System.out.println("Rank: " + rs.getSensitivityClassification.getSensitivityRank());
}
}
}
/**
* Drops the table created for test
*
* @param stmt
* Statement to work with
* @param tableName
* Table Name to be used
* @throws SQLException
* If an exception occurs
*/
private static void drop_table(Statement stmt, String tableName) throws SQLException {
stmt.execute("DROP TABLE " + tableName);
}
}