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.sdk.io.fs;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  import org.apache.beam.sdk.coders.AtomicCoder;
  import org.apache.beam.sdk.coders.BooleanCoder;
  import org.apache.beam.sdk.coders.Coder;
  import org.apache.beam.sdk.coders.StringUtf8Coder;
  import org.apache.beam.sdk.io.FileSystems;
  
  /** A {@link Coder} for {@link ResourceId}. */
  public class ResourceIdCoder extends AtomicCoder<ResourceId> {
    private static final Coder<String> STRING_CODER = StringUtf8Coder.of();
    private static final Coder<Boolean> BOOL_CODER = BooleanCoder.of();
  
    /** Creates a {@link ResourceIdCoder}. */
    public static ResourceIdCoder of() {
      return new ResourceIdCoder();
    }
  
    @Override
    public void encode(ResourceId value, OutputStream os) throws IOException {
      STRING_CODER.encode(value.toString(), os);
      BOOL_CODER.encode(value.isDirectory(), os);
    }
  
    @Override
    public ResourceId decode(InputStream is) throws IOException {
      String spec = STRING_CODER.decode(is);
      boolean isDirectory = BOOL_CODER.decode(is);
      return FileSystems.matchNewResource(spec, isDirectory);
    }
  
    @Override
    public boolean consistentWithEquals() {
      return true;
    }
  }
  