com.tigergraph.jdbc.restpp.RestppArray Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of tigergraph-jdbc-driver Show documentation

This project is a type 4 jdbc driver which implemented the standard jdbc interface. It supports connectivity to tigergraph server and varieties of query types.

There is a newer version: 1.3.20

Show newest version

package com.tigergraph.jdbc.restpp;

import com.tigergraph.jdbc.common.Array;
import com.tigergraph.jdbc.log.TGLoggerFactory;

import java.math.BigDecimal;
import java.sql.Date;
import java.sql.SQLException;
import java.sql.Timestamp;

import org.slf4j.Logger;

public class RestppArray extends Array {

  private static final Logger logger = TGLoggerFactory.getLogger(RestppConnection.class);

  public RestppArray(String typeName, Object[] elements) throws SQLException {
    super(typeName, elements);

    if (this.elements.length == 0) {
      return;
    }

    switch (this.typeName) {
      case "SHORT":
      case "INTEGER":
        checkClass(Integer.class, Short.class);
        break;
      case "BYTE":
        checkClass(Byte.class);
        break;
      case "BIGINT":
      case "LONG":
        checkClass(Long.class);
        break;
      case "DOUBLE":
      case "DOUBLE PRECISION":
        checkClass(Double.class);
        break;
      case "REAL":
      case "FLOAT":
        checkClass(Float.class);
        break;
      case "BIT":
      case "BOOLEAN":
        checkClass(Boolean.class);
        break;
      case "TEXT":
      case "STRING":
        checkClass(String.class);
        break;
      case "TIMESTAMP":
        checkClass(Timestamp.class);
        break;
      case "DATE":
        checkClass(Date.class);
        break;
      case "DECIMAL":
        checkClass(BigDecimal.class);
        break;
      case "BINARY":
      case "BLOB":
        checkClass(byte[].class);
        break;
      case "ANY":
        break;
      default:
        logger.error("Unsupported element type: {}", this.typeName);
        throw new SQLException("Unsupported element type: " + this.typeName);
    }
  }

  private void checkClass(Class... expected) throws SQLException {
    for (int i = 0; i < expected.length; i++) {
      if (expected[i].isInstance(this.elements[0])) return;
    }
    throw new SQLException(
        "For array of " + getBaseTypeName() + ", elements of type " + expected + " are expected.");
  }

  private void checkClass(Class expected) throws SQLException {
    if (!expected.isInstance(this.elements[0]))
      throw new SQLException(
          "For array of "
              + getBaseTypeName()
              + ", elements of type "
              + expected
              + " are expected.");
  }
}