Added array result set

Author: chernser

client-v2/src/main/java/com/clickhouse/client/api/data_formats/internal/ValueConverters.java

@@ -0,0 +1,94 @@
+package com.clickhouse.client.api.data_formats.internal;
+
+import java.math.BigDecimal;
+import java.math.BigInteger;
+
+public final class ValueConverters {
+
+    // Boolean to any
+    public Number convertBooleanToNumber(Object value) {
+        return ((Boolean)value) ? 1 : 0;
+    }
+
+    public String convertBooleanToString(Object value) {
+        return String.valueOf(value);
+    }
+
+    // String to any
+    public String convertStringToString(Object value) {
+        return (String) value;
+    }
+
+    public byte[] convertStringToBytes(Object value) {
+        return ((String) value).getBytes();
+    }
+
+    public boolean convertStringToBoolean(Object value) {
+        return Boolean.parseBoolean((String) value);
+    }
+
+    public byte convertStringToByte(Object value) {
+        return Byte.parseByte((String) value);
+    }
+
+    public short convertStringToShort(Object value) {
+        return Short.parseShort((String) value);
+    }
+
+    public int convertStringToInt(Object value) {
+        return Integer.parseInt((String) value);
+    }
+
+    public long convertStringToLong(Object value) {
+        return Long.parseLong((String) value);
+    }
+
+    public float convertStringToFloat(Object value) {
+        return Float.parseFloat((String) value);
+    }
+
+    public double convertStringToDouble(Object value) {
+        return Double.parseDouble((String) value);
+    }
+
+    // Number to any
+    public String convertNumberToString(Object value) {
+        return String.valueOf(value);
+    }
+
+    public boolean convertNumberToBoolean(Object value) {
+        return ((Number) value).floatValue() != 0.0f;
+    }
+
+    public byte convertNumberToByte(Object value) {
+        return ((Number) value).byteValue();
+    }
+
+    public short convertNumberToShort(Object value) {
+        return ((Number) value).shortValue();
+    }
+
+    public int convertNumberToInt(Object value) {
+        return ((Number) value).intValue();
+    }
+
+    public long convertNumberToLong(Object value) {
+        return ((Number) value).longValue();
+    }
+
+    public float convertNumberToFloat(Object value) {
+        return ((Number) value).floatValue();
+    }
+
+    public double convertNumberToDouble(Object value) {
+        return ((Number) value).doubleValue();
+    }
+
+    public BigInteger convertNumberToBigInteger(Object value) {
+        return BigInteger.valueOf(((Number) value).longValue());
+    }
+
+    public BigDecimal convertNumberToBigDecimal(Object value) {
+        return BigDecimal.valueOf(((Number) value).doubleValue());
+    }
+}