| /* |
| * 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.log4j.chainsaw; |
| |
| import java.util.Arrays; |
| import java.util.Hashtable; |
| import java.util.List; |
| |
| import javax.swing.DefaultBoundedRangeModel; |
| import javax.swing.JLabel; |
| import javax.swing.JSlider; |
| import javax.swing.SwingConstants; |
| |
| import org.apache.log4j.Level; |
| |
| |
| /** |
| * A Slider implementation that allows a user to |
| * choose a particular Threshold |
| * . |
| * @author Paul Smith <psmith@apache.org> |
| * |
| */ |
| final class ThresholdSlider extends JSlider { |
| final List priorityList; |
| |
| ThresholdSlider() { |
| Level[] levels = |
| new Level[] { |
| Level.OFF, Level.FATAL, Level.ERROR, Level.WARN, Level.INFO, |
| Level.DEBUG, Level.TRACE, Level.ALL |
| }; |
| |
| priorityList = Arrays.asList(levels); |
| |
| priorityList.sort((o1, o2) -> { |
| Level p1 = (Level) o1; |
| Level p2 = (Level) o2; |
| |
| if (p1.toInt() == p2.toInt()) { |
| return 0; |
| } else if (p1.toInt() < p2.toInt()) { |
| return -1; |
| } |
| |
| return 1; |
| }); |
| |
| setModel( |
| new DefaultBoundedRangeModel( |
| priorityList.indexOf(Level.TRACE), 0, 0, priorityList.size() - 1)); |
| |
| Hashtable<Integer, JLabel> labelMap = new Hashtable<>(); |
| |
| for (Object aPriorityList : priorityList) { |
| Level item = (Level) aPriorityList; |
| labelMap.put( |
| priorityList.indexOf(item), new JLabel(item.toString())); |
| |
| // System.out.println("creating levels for :: " + item.toInt() + "," + item.toString()); |
| } |
| |
| setOrientation(SwingConstants.VERTICAL); |
| setInverted(true); |
| setLabelTable(labelMap); |
| |
| setPaintLabels(true); |
| |
| // setPaintTicks(true); |
| setSnapToTicks(true); |
| |
| // setMajorTickSpacing(10000); |
| // setPaintTrack(true); |
| } |
| |
| void setChosenLevel(Level level) { |
| setValue(priorityList.indexOf(level)); |
| } |
| |
| /** |
| * Returns the Log4j Level that is currently selected in this slider |
| * @return |
| */ |
| Level getSelectedLevel() { |
| Level level = (Level) priorityList.get(getValue()); |
| |
| if (level == null) { |
| level = Level.TRACE; |
| } |
| |
| return level; |
| } |
| } |