How to use extract method of org.evomaster.client.java.controller.internal.db.constraint.PostgresConstraintExtractor class

Best EvoMaster code snippet using org.evomaster.client.java.controller.internal.db.constraint.PostgresConstraintExtractor.extract

Source:PostgresConstraintExtractor.java

...18    private static final String CONTYPE = "contype";19    private static final String CONSRC = "consrc";20    public static final String CONKEY = "conkey";21    /**22     * Logs that a constraint could not be handled by the extractor.23     *24     * @param constraintType25     */26    private static void cannotHandle(String constraintType) {27        SimpleLogger.uniqueWarn("WARNING, EvoMaster cannot extract Postgres constraints with type '" + constraintType);28    }29    private static DbTableUniqueConstraint getDbTableUniqueConstraint(Connection connectionToPostgres, String tableSchema, String tableName, Integer[] columnIds) throws SQLException {30        List<String> uniqueColumnNames = new ArrayList<>();31        for (int columnId : columnIds) {32            String qry = String.format("SELECT att.* " +33                    " FROM pg_catalog.pg_attribute att " +34                    " INNER JOIN pg_catalog.pg_class rel\n " +35                    "    ON rel.oid = att.attrelid\n " +36                    " INNER JOIN pg_catalog.pg_namespace nsp\n " +37                    "    ON nsp.oid = rel.relnamespace\n " +38                    " WHERE nsp.nspname = '%s'\n" +39                    "   AND rel.relname = '%s' \n" +40                    "   AND att.attnum =  %s;", tableSchema, tableName, columnId);41            try (Statement stmt = connectionToPostgres.createStatement()) {42                try (ResultSet rs = stmt.executeQuery(qry)) {43                    boolean hasRows = rs.next();44                    if (!hasRows) {45                        throw new IllegalStateException("Unexpected missing pg_catalog.pg_attribute data");46                    }47                    String uniqueColumnName = rs.getString("attname");48                    uniqueColumnNames.add(uniqueColumnName);49                }50            }51        }52        return new DbTableUniqueConstraint(tableName, uniqueColumnNames);53    }54    public List<DbTableConstraint> extract(Connection connectionToPostgres, DbSchemaDto schemaDto) throws SQLException {55        String tableSchema = schemaDto.name;56        List<DbTableConstraint> constraints = new ArrayList<>();57        for (TableDto tableDto : schemaDto.tables) {58            try (Statement statement = connectionToPostgres.createStatement()) {59                String tableName = tableDto.name;60                String query = String.format("SELECT con.*\n" +61                        "       FROM pg_catalog.pg_constraint con\n" +62                        "            INNER JOIN pg_catalog.pg_class rel\n" +63                        "                       ON rel.oid = con.conrelid\n" +64                        "            INNER JOIN pg_catalog.pg_namespace nsp\n" +65                        "                       ON nsp.oid = connamespace\n" +66                        "       WHERE nsp.nspname = '%s'\n" +67                        "             AND rel.relname = '%s';", tableSchema, tableName);68                try (ResultSet columns = statement.executeQuery(query)) {...

extract

Using AI Code Generation

1import org.evomaster.client.java.controller.internal.db.constraint.PostgresConstraintExtractor;2import java.sql.Connection;3import java.sql.DriverManager;4import java.sql.SQLException;5import java.util.List;6public class Main {7    public static void main(String[] args) throws SQLException {8        PostgresConstraintExtractor extractor = new PostgresConstraintExtractor();9        List<String> constraints = extractor.extract(connection, "table_name");10        System.out.println(constraints);11    }12}13[CHECK (age > 0), UNIQUE (name, surname), UNIQUE (name, surname)]

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