protected ValueGetter getMapping()

in endorsed/src/org.apache.sis.storage.sql/main/org/apache/sis/storage/sql/feature/Database.java [663:710]
48 lines of code
37 McCabe index (conditional complexity)

    protected ValueGetter<?> getMapping(final Column columnDefinition) {
        if (GeometryType.isKnown(columnDefinition.typeName)) {
            return forGeometry(columnDefinition);
        }
        switch (columnDefinition.type) {
            case Types.BIT:
            case Types.BOOLEAN:                   return ValueGetter.AsBoolean.INSTANCE;
            case Types.TINYINT: if (isByteSigned) return ValueGetter.AsByte.INSTANCE;       // else fallthrough.
            case Types.SMALLINT:                  return ValueGetter.AsShort.INSTANCE;
            case Types.INTEGER:                   return ValueGetter.AsInteger.INSTANCE;
            case Types.BIGINT:                    return ValueGetter.AsLong.INSTANCE;
            case Types.REAL:                      return ValueGetter.AsFloat.INSTANCE;
            case Types.FLOAT:                     // Despite the name, this is implemented as DOUBLE in major databases.
            case Types.DOUBLE:                    return ValueGetter.AsDouble.INSTANCE;
            case Types.NUMERIC:                   // Similar to DECIMAL except that it uses exactly the specified precision.
            case Types.DECIMAL:                   return ValueGetter.AsBigDecimal.INSTANCE;
            case Types.CHAR:
            case Types.VARCHAR:
            case Types.LONGVARCHAR:               return ValueGetter.AsString.INSTANCE;
            case Types.DATE:                      return supportsJavaTime ? ValueGetter.LOCAL_DATE       : ValueGetter.AsLocalDate.INSTANCE;
            case Types.TIME:                      return supportsJavaTime ? ValueGetter.LOCAL_TIME       : ValueGetter.AsLocalTime.INSTANCE;
            case Types.TIMESTAMP:                 return supportsJavaTime ? ValueGetter.LOCAL_DATE_TIME  : ValueGetter.AsLocalDateTime.INSTANCE;
            case Types.TIME_WITH_TIMEZONE:        return supportsJavaTime ? ValueGetter.OFFSET_TIME      : ValueGetter.AsOffsetTime.INSTANCE;
            case Types.TIMESTAMP_WITH_TIMEZONE:   return supportsJavaTime ? ValueGetter.OFFSET_DATE_TIME : ValueGetter.AsOffsetDateTime.INSTANCE;
            case Types.BLOB:                      return ValueGetter.AsBytes.INSTANCE;
            case Types.OTHER:
            case Types.JAVA_OBJECT:               return getDefaultMapping();
            case Types.BINARY:
            case Types.VARBINARY:
            case Types.LONGVARBINARY: {
                final BinaryEncoding encoding = getBinaryEncoding(columnDefinition);
                switch (encoding) {
                    case RAW:         return ValueGetter.AsBytes.INSTANCE;
                    case HEXADECIMAL: return ValueGetter.AsBytes.HEXADECIMAL;
                    default: throw new AssertionError(encoding);
                }
            }
            case Types.ARRAY: {
                final int componentType = getArrayComponentType(columnDefinition);
                final ValueGetter<?> component = getMapping(new Column(componentType, columnDefinition.typeName));
                if (component == ValueGetter.AsObject.INSTANCE) {
                    return ValueGetter.AsArray.INSTANCE;
                }
                return new ValueGetter.AsArray(component);
            }
            default: return null;
        }
    }