/**
    * 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.hadoop.hbase.hbtop.terminal.impl.batch;
  
  import edu.umd.cs.findbugs.annotations.Nullable;
  import org.apache.hadoop.hbase.hbtop.terminal.CursorPosition;
  import org.apache.hadoop.hbase.hbtop.terminal.KeyPress;
  import org.apache.hadoop.hbase.hbtop.terminal.Terminal;
  import org.apache.hadoop.hbase.hbtop.terminal.TerminalPrinter;
  import org.apache.hadoop.hbase.hbtop.terminal.TerminalSize;
  
  /**
   * An implementation of the {@link Terminal} interface for batch mode.
   *
   * This implementation produces output that's more sensible for collecting to a log file or for
   * parsing. There is no limit on the number of output lines, and the output doesn't contain any
   * escape sequences for formatting.
   */
  public class BatchTerminal implements Terminal {
  
    private static final TerminalPrinter TERMINAL_PRINTER = new BatchTerminalPrinter();
  
    @Override
    public void clear() {
    }
  
    @Override
    public void refresh() {
      // Add a new line
      TERMINAL_PRINTER.endOfLine();
    }
  
    @Nullable
    @Override
    public TerminalSize getSize() {
      return null;
    }
  
    @Nullable
    @Override
    public TerminalSize doResizeIfNecessary() {
      return null;
    }
  
    @Nullable
    @Override
    public KeyPress pollKeyPress() {
      return null;
    }
  
    @Override
    public CursorPosition getCursorPosition() {
      return null;
    }
  
    @Override
    public void setCursorPosition(int column, int row) {
    }
  
    @Override
    public void hideCursor() {
    }
  
    @Override
    public TerminalPrinter getTerminalPrinter(int startRow) {
      return TERMINAL_PRINTER;
    }
  
    @Override
    public void close() {
    }
  }