| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.beam.runners.dataflow.worker; |
| |
| import org.apache.beam.vendor.grpc.v1p26p0.com.google.protobuf.ByteString; |
| |
| /** |
| * A prefix for a Windmill state or timer tag to separate user state and timers from system state |
| * and timers. |
| */ |
| enum WindmillNamespacePrefix { |
| USER_NAMESPACE_PREFIX { |
| @Override |
| ByteString byteString() { |
| return USER_NAMESPACE_BYTESTRING; |
| } |
| }, |
| |
| SYSTEM_NAMESPACE_PREFIX { |
| @Override |
| ByteString byteString() { |
| return SYSTEM_NAMESPACE_BYTESTRING; |
| } |
| }; |
| |
| abstract ByteString byteString(); |
| |
| private static final ByteString USER_NAMESPACE_BYTESTRING = ByteString.copyFromUtf8("/u"); |
| private static final ByteString SYSTEM_NAMESPACE_BYTESTRING = ByteString.copyFromUtf8("/s"); |
| } |