content: /*
   * 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.core;
  
  import java.io.IOException;
  import java.util.Objects;
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  /** A simple {@link StateNamespace} used for testing. */
  public class StateNamespaceForTest implements StateNamespace {
    private String key;
  
    public StateNamespaceForTest(String key) {
      this.key = key;
    }
  
    @Override
    public String stringKey() {
      return key;
    }
  
    @Override
    public Object getCacheKey() {
      return key;
    }
  
    @Override
    public boolean equals(@Nullable Object obj) {
      if (this == obj) {
        return true;
      }
  
      if (!(obj instanceof StateNamespaceForTest)) {
        return false;
      }
  
      return Objects.equals(this.key, ((StateNamespaceForTest) obj).key);
    }
  
    @Override
    public int hashCode() {
      return key.hashCode();
    }
  
    @Override
    public void appendTo(Appendable sb) throws IOException {
      sb.append(key);
    }
  }
  