public static String findExistingColumn(PTable table, List<PColumn> columns) {
for (PColumn column : columns) {
PName familyName = column.getFamilyName();
if (familyName == null) {
try {
return table.getPKColumn(column.getName().getString()).getName().getString();
} catch (ColumnNotFoundException e) {
continue;
}
} else {
try {
return table
.getColumnFamily(familyName.getString())
.getColumn(column.getName().getString())
.getName()
.getString();
} catch (ColumnFamilyNotFoundException e) {
continue; // Shouldn't happen
} catch (ColumnNotFoundException e) {
continue;
}
}
}
return null;
}
public static byte[] getTableKey(PTable dataTable) {
PName tenantId = dataTable.getTenantId();
PName schemaName = dataTable.getSchemaName();
return getTableKey(
tenantId == null ? ByteUtil.EMPTY_BYTE_ARRAY : tenantId.getBytes(),
schemaName == null ? ByteUtil.EMPTY_BYTE_ARRAY : schemaName.getBytes(),
dataTable.getTableName().getBytes());
}
public static byte[] getEmptyColumnFamily(
PName defaultColumnFamily, List<PColumnFamily> families) {
return families.isEmpty()
? defaultColumnFamily == null
? QueryConstants.DEFAULT_COLUMN_FAMILY_BYTES
: defaultColumnFamily.getBytes()
: families.get(0).getName().getBytes();
}
public static PName padTenantIdIfNecessary(
RowKeySchema schema, boolean isSalted, PName tenantId) {
int pkPos = isSalted ? 1 : 0;
String tenantIdStr = tenantId.getString();
Field field = schema.getField(pkPos);
PDataType dataType = field.getDataType();
boolean isFixedWidth = dataType.isFixedWidth();
Integer maxLength = field.getMaxLength();
if (isFixedWidth && maxLength != null) {
if (tenantIdStr.length() < maxLength) {
tenantIdStr = (String) dataType.pad(tenantIdStr, maxLength);
return PNameFactory.newName(tenantIdStr);
}
}
return tenantId;
}
