001/** 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.hbtop.screen.top; 019 020import java.util.ArrayList; 021import java.util.Collections; 022import java.util.List; 023import java.util.Objects; 024import org.apache.hadoop.hbase.hbtop.RecordFilter; 025import org.apache.hadoop.hbase.hbtop.screen.ScreenView; 026import org.apache.yetus.audience.InterfaceAudience; 027 028 029/** 030 * The presentation logic for the filter display mode. 031 */ 032@InterfaceAudience.Private 033public class FilterDisplayModeScreenPresenter { 034 035 private final FilterDisplayModeScreenView filterDisplayModeScreenView; 036 private final List<RecordFilter> filters; 037 private final ScreenView nextScreenView; 038 039 public FilterDisplayModeScreenPresenter(FilterDisplayModeScreenView filterDisplayModeScreenView, 040 List<RecordFilter> filters, ScreenView nextScreenView) { 041 this.filterDisplayModeScreenView = Objects.requireNonNull(filterDisplayModeScreenView); 042 this.filters = Collections.unmodifiableList(new ArrayList<>(Objects.requireNonNull(filters))); 043 this.nextScreenView = Objects.requireNonNull(nextScreenView); 044 } 045 046 public void init() { 047 filterDisplayModeScreenView.showFilters(filters); 048 filterDisplayModeScreenView.refreshTerminal(); 049 } 050 051 public ScreenView returnToNextScreen() { 052 return nextScreenView; 053 } 054}