@Nullable
public static List<String> getStrings(
Map<String, Object> map, String name, @Nullable List<String> defaultValue) throws Exception {
@Nullable Object value = map.get(name);
if (value == null) {
if (map.containsKey(name)) {
throw new IncorrectTypeException(name, map, "a string or a list");
}
return defaultValue;
}
if (Data.isNull(value)) {
// This is a JSON literal null. When represented as a list of strings,
// this is an empty list.
return Collections.<String>emptyList();
}
@Nullable String singletonString = decodeValue(value, String.class);
if (singletonString != null) {
return Collections.singletonList(singletonString);
}
if (!(value instanceof List)) {
throw new IncorrectTypeException(name, map, "a string or a list");
}
@SuppressWarnings("unchecked")
List<Object> elements = (List<Object>) value;
List<String> result = new ArrayList<>(elements.size());
for (Object o : elements) {
@Nullable String s = decodeValue(o, String.class);
if (s == null) {
throw new IncorrectTypeException(name, map, "a list of strings");
}
result.add(s);
}
return result;
}
@Nullable
public static List<Map<String, Object>> getListOfMaps(
Map<String, Object> map, String name, @Nullable List<Map<String, Object>> defaultValue)
throws Exception {
@Nullable Object value = map.get(name);
if (value == null) {
if (map.containsKey(name)) {
throw new IncorrectTypeException(name, map, "a list");
}
return defaultValue;
}
if (Data.isNull(value)) {
// This is a JSON literal null. When represented as a list,
// this is an empty list.
return Collections.<Map<String, Object>>emptyList();
}
if (!(value instanceof List)) {
throw new IncorrectTypeException(name, map, "a list");
}
List<?> elements = (List<?>) value;
for (Object elem : elements) {
if (!(elem instanceof Map)) {
throw new IncorrectTypeException(name, map, "a list of Map objects");
}
}
@SuppressWarnings("unchecked")
List<Map<String, Object>> result = (List<Map<String, Object>>) elements;
return result;
}
/** {@inheritDoc} */
@Override
public Object getObject(int columnIndex) throws SQLException {
// to make the logfiles smaller!
// logger.debug("Function call getObject columnIndex is: " + String.valueOf(columnIndex));
this.closestrm();
if (this.isClosed()) {
throw new BQSQLException("This Resultset is Closed");
}
this.ThrowCursorNotValidExeption();
if (this.RowsofResult == null) {
throw new BQSQLException("There are no rows in this Resultset");
}
if (this.getMetaData().getColumnCount() < columnIndex || columnIndex < 1) {
throw new BQSQLException("ColumnIndex is not valid");
}
String Columntype = this.Result.getSchema().getFields().get(columnIndex - 1).getType();
TableCell field = ((TableRow) this.RowsofResult[this.Cursor]).getF().get(columnIndex - 1);
if (Data.isNull(field.getV())) {
this.wasnull = true;
return null;
} else {
String result = field.getV().toString();
this.wasnull = false;
try {
if (Columntype.equals("STRING")) {
// removing the excess byte by the setmaxFiledSize
if (maxFieldSize == 0 || maxFieldSize == Integer.MAX_VALUE) {
return result;
} else {
try { // lets try to remove the excess bytes
return result.substring(0, maxFieldSize);
} catch (IndexOutOfBoundsException iout) {
// we don't need to remove any excess byte
return result;
}
}
}
if (Columntype.equals("FLOAT")) {
return Float.parseFloat(result);
}
if (Columntype.equals("BOOLEAN")) {
return Boolean.parseBoolean(result);
}
if (Columntype.equals("INTEGER")) {
return Long.parseLong(result);
}
if (Columntype.equals("TIMESTAMP")) {
long val = new BigDecimal(result).longValue() * 1000;
return new Timestamp(val);
}
throw new BQSQLException("Unsupported Type (" + Columntype + ")");
} catch (NumberFormatException e) {
throw new BQSQLException(e);
}
}
}
public static Map<String, Object> getDictionary(Map<String, Object> map, String name)
throws Exception {
@Nullable Object value = map.get(name);
if (value == null) {
throw new ParameterNotFoundException(name, map);
}
if (Data.isNull(value)) {
// This is a JSON literal null. When represented as a dictionary, this is
// an empty map.
return Collections.<String, Object>emptyMap();
}
if (!(value instanceof Map)) {
throw new IncorrectTypeException(name, map, "a dictionary");
}
@SuppressWarnings("unchecked")
Map<String, Object> result = (Map<String, Object>) value;
return result;
}
private static Map<String, Object> checkObject(Object value, Map<String, Object> map, String name)
throws Exception {
if (Data.isNull(value)) {
// This is a JSON literal null. When represented as an object, this is an
// empty map.
return Collections.<String, Object>emptyMap();
}
if (!(value instanceof Map)) {
throw new IncorrectTypeException(name, map, "an object (not a map)");
}
@SuppressWarnings("unchecked")
Map<String, Object> mapValue = (Map<String, Object>) value;
if (!mapValue.containsKey(PropertyNames.OBJECT_TYPE_NAME)) {
throw new IncorrectTypeException(
name, map, "an object (no \"" + PropertyNames.OBJECT_TYPE_NAME + "\" field)");
}
return mapValue;
}