Logback: the reliable, generic, fast and flexible logging framework.
Copyright (C) 1999-2015, QOS.ch. All rights reserved.
This program and the accompanying materials are dual-licensed under
either the terms of the Eclipse Public License v1.0 as published by
the Eclipse Foundation
  or (per the licensee's choosing)
under the terms of the GNU Lesser General Public License version 2.1
as published by the Free Software Foundation.
/**
 * Logback: the reliable, generic, fast and flexible logging framework.
 * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
 *
 * This program and the accompanying materials are dual-licensed under
 * either the terms of the Eclipse Public License v1.0 as published by
 * the Eclipse Foundation
 *
 *   or (per the licensee's choosing)
 *
 * under the terms of the GNU Lesser General Public License version 2.1
 * as published by the Free Software Foundation.
 */
package ch.qos.logback.classic.util;

import ch.qos.logback.core.CoreConstants;

import java.util.ArrayList;
import java.util.List;

Utility class for analysing logger names.
/**
 * Utility class for analysing logger names.
 */
public class LoggerNameUtil {

    public static int getFirstSeparatorIndexOf(String name) {
        return getSeparatorIndexOf(name, 0);
    }

    
Get the position of the separator character, if any, starting at position
'fromIndex'.
Params:
name – 
fromIndex – 
Returns:
/**
     * Get the position of the separator character, if any, starting at position
     * 'fromIndex'.
     *
     * @param name
     * @param fromIndex
     * @return

     */
    public static int getSeparatorIndexOf(String name, int fromIndex) {
        int dotIndex = name.indexOf(CoreConstants.DOT, fromIndex);
        int dollarIndex = name.indexOf(CoreConstants.DOLLAR, fromIndex);

        if (dotIndex == -1 && dollarIndex == -1)
            return -1;
        if (dotIndex == -1)
            return dollarIndex;
        if (dollarIndex == -1)
            return dotIndex;

        return dotIndex < dollarIndex ? dotIndex : dollarIndex;
    }

    public static List<String> computeNameParts(String loggerName) {
        List<String> partList = new ArrayList<String>();

        int fromIndex = 0;
        while (true) {
            int index = getSeparatorIndexOf(loggerName, fromIndex);
            if (index == -1) {
                partList.add(loggerName.substring(fromIndex));
                break;
            }
            partList.add(loggerName.substring(fromIndex, index));
            fromIndex = index + 1;
        }
        return partList;
    }
}