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
   *
   *     https://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.avro.tool;
  
  import java.io.InputStream;
  import java.io.BufferedInputStream;
  import java.io.BufferedOutputStream;
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.net.URI;
  
  import org.apache.trevni.Input;
  import org.apache.trevni.avro.HadoopInput;
  import org.apache.trevni.InputFile;
  
  import org.apache.hadoop.conf.Configuration;
  import org.apache.hadoop.fs.FileSystem;
  import org.apache.hadoop.fs.Path;
  
  /** Static utility methods for tools. */
  class TrevniUtil {
  
    static Input input(String filename) throws IOException {
      if (filename.startsWith("hdfs://")) {
        return new HadoopInput(new Path(filename), new Configuration());
      } else {
        return new InputFile(new File(filename));
      }
    }
  
    /**
     * Returns stdin if filename is "-", else opens the local or HDFS file and
     * returns an InputStream for it.
     * 
     * @throws IOException
     */
    static InputStream input(String filename, InputStream stdin) throws IOException {
      if (filename.equals("-"))
        return new BufferedInputStream(stdin);
      else if (filename.startsWith("hdfs://")) {
        FileSystem fs = FileSystem.get(URI.create(filename), new Configuration());
        return new BufferedInputStream(fs.open(new Path(filename)));
      } else {
        return new BufferedInputStream(new FileInputStream(new File(filename)));
      }
    }
  
    /**
     * Returns stdout if filename is "-", else opens the local or HDFS file and
     * returns an OutputStream for it.
     * 
     * @throws IOException
     */
    static OutputStream output(String filename, OutputStream stdout) throws IOException {
      if (filename.equals("-"))
        return new BufferedOutputStream(stdout);
      else if (filename.startsWith("hdfs://")) {
        FileSystem fs = FileSystem.get(URI.create(filename), new Configuration());
        return new BufferedOutputStream(fs.create(new Path(filename)));
      } else {
        return new BufferedOutputStream(new FileOutputStream(new File(filename)));
      }
    }
  
  }
  