| /** |
| * 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; |
| |
| import edu.umd.cs.findbugs.annotations.Nullable; |
| import java.io.Closeable; |
| |
| import org.apache.hadoop.hbase.classification.InterfaceAudience; |
| |
| /** |
| * The terminal interface that is an abstraction of terminal screen. |
| */ |
| @InterfaceAudience.Private |
| public interface Terminal extends Closeable { |
| void clear(); |
| void refresh(); |
| TerminalSize getSize(); |
| @Nullable TerminalSize doResizeIfNecessary(); |
| @Nullable KeyPress pollKeyPress(); |
| CursorPosition getCursorPosition(); |
| void setCursorPosition(int column, int row); |
| void hideCursor(); |
| TerminalPrinter getTerminalPrinter(int startRow); |
| } |