org.apache.log4j.lf5.viewer.LogTableColumn Maven / Gradle / Ivy
/*
* 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.lf5.viewer;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* LogTableColumn
*
* @author Michael J. Sikorsky
* @author Brad Marlborough
*/
// Contributed by ThoughtWorks Inc.
public class LogTableColumn implements java.io.Serializable {
private static final long serialVersionUID = -4275827753626456547L;
// log4j table columns.
public final static LogTableColumn DATE = new LogTableColumn("Date");
public final static LogTableColumn THREAD = new LogTableColumn("Thread");
public final static LogTableColumn MESSAGE_NUM = new LogTableColumn("Message #");
public final static LogTableColumn LEVEL = new LogTableColumn("Level");
public final static LogTableColumn NDC = new LogTableColumn("NDC");
public final static LogTableColumn CATEGORY = new LogTableColumn("Category");
public final static LogTableColumn MESSAGE = new LogTableColumn("Message");
public final static LogTableColumn LOCATION = new LogTableColumn("Location");
public final static LogTableColumn THROWN = new LogTableColumn("Thrown");
//--------------------------------------------------------------------------
// Protected Variables:
//--------------------------------------------------------------------------
protected String _label;
//--------------------------------------------------------------------------
// Private Variables:
//--------------------------------------------------------------------------
private static LogTableColumn[] _log4JColumns;
private static Map _logTableColumnMap;
//--------------------------------------------------------------------------
// Constructors:
//--------------------------------------------------------------------------
static {
_log4JColumns = new LogTableColumn[]{DATE, THREAD, MESSAGE_NUM, LEVEL, NDC, CATEGORY,
MESSAGE, LOCATION, THROWN};
_logTableColumnMap = new HashMap();
for (int i = 0; i < _log4JColumns.length; i++) {
_logTableColumnMap.put(_log4JColumns[i].getLabel(), _log4JColumns[i]);
}
}
public LogTableColumn(String label) {
_label = label;
}
//--------------------------------------------------------------------------
// Public Methods:
//--------------------------------------------------------------------------
/**
* Return the Label of the LogLevel.
*/
public String getLabel() {
return _label;
}
/**
* Convert a column label into a LogTableColumn object.
*
* @param column The label of a level to be converted into a LogTableColumn.
* @return LogTableColumn The LogTableColumn with a label equal to column.
* @throws LogTableColumnFormatException Is thrown when the column can not be
* converted into a LogTableColumn.
*/
public static LogTableColumn valueOf(String column)
throws LogTableColumnFormatException {
LogTableColumn tableColumn = null;
if (column != null) {
column = column.trim();
tableColumn = (LogTableColumn) _logTableColumnMap.get(column);
}
if (tableColumn == null) {
StringBuffer buf = new StringBuffer();
buf.append("Error while trying to parse (" + column + ") into");
buf.append(" a LogTableColumn.");
throw new LogTableColumnFormatException(buf.toString());
}
return tableColumn;
}
public boolean equals(Object o) {
boolean equals = false;
if (o instanceof LogTableColumn) {
if (this.getLabel() ==
((LogTableColumn) o).getLabel()) {
equals = true;
}
}
return equals;
}
public int hashCode() {
return _label.hashCode();
}
public String toString() {
return _label;
}
/**
* @return A List of LogTableColumn/code> objects that map
* to log4j Column objects.
*/
public static List getLogTableColumns() {
return Arrays.asList(_log4JColumns);
}
public static LogTableColumn[] getLogTableColumnArray() {
return _log4JColumns;
}
//--------------------------------------------------------------------------
// Protected Methods:
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
// Private Methods:
//--------------------------------------------------------------------------
//--------------------------------------------------------------------------
// Nested Top-Level Classes or Interfaces:
//--------------------------------------------------------------------------
}