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Java API for handling configuration files in Windows .ini format. The library includes its own Map based API, Java Preferences API and Java Beans API for handling .ini files. Additionally, the library includes a feature rich (variable/macro substitution, multiply property values, etc) java.util.Properties replacement.

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/*
 * Copyright 2005,2009 Ivan SZKIBA
 *
 * Licensed 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.ini4j.spi;

import org.ini4j.CommentedMap;
import org.ini4j.Config;
import org.ini4j.Ini;
import org.ini4j.Profile;

abstract class AbstractProfileBuilder implements IniHandler
{
    private Profile.Section _currentSection;
    private boolean _header;
    private String _lastComment;
    private int _emptyLines = 0;

    @Override public void endIni()
    {

        // comment only .ini files....
        if ((_lastComment != null) && _header)
        {
            setHeaderComment();
        }
    }

    @Override public void endSection()
    {
        _currentSection = null;
    }

    @Override public void handleComment(String comment)
    {
        if ((_lastComment != null) && _header)
        {
            _header = false;
            setHeaderComment();
        }

        _lastComment = comment;
    }

    @Override public void handleEmptyLine()
    {
        _emptyLines++;
    }

    @Override public void handleOption(String name, String value)
    {
        _header = false;
        if (getConfig().isMultiOption())
        {
            _currentSection.add(name, value);
        }
        else
        {
            _currentSection.put(name, value);
        }

        if (_lastComment != null)
        {
            putComment(_currentSection, name);
            _lastComment = null;
        }

        if (_emptyLines > 0)
        {
            putEmptyLines(_currentSection, name);
            _emptyLines = 0;
        }
    }

    @Override public void startIni()
    {
        if (getConfig().isHeaderComment())
        {
            _header = true;
        }
    }

    @Override public void startSection(String sectionName)
    {
        if (getConfig().isMultiSection())
        {
            _currentSection = getProfile().add(sectionName);
        }
        else
        {
            Ini.Section s = getProfile().get(sectionName);

            _currentSection = (s == null) ? getProfile().add(sectionName) : s;
        }

        if (_lastComment != null)
        {
            if (_header)
            {
                setHeaderComment();
            }
            else
            {
                putComment(getProfile(), sectionName);
            }

            _lastComment = null;
        }

        if (_emptyLines > 0)
        {
            if (!_header)
            {
                putEmptyLines(getProfile(), sectionName);
            }
            _emptyLines = 0;
        }

        _header = false;
    }

    abstract Config getConfig();

    abstract Profile getProfile();

    Profile.Section getCurrentSection()
    {
        return _currentSection;
    }

    private void setHeaderComment()
    {
        if (getConfig().isComment())
        {
            getProfile().setComment(_lastComment);
        }
    }

    private void putComment(CommentedMap map, String key)
    {
        if (getConfig().isComment())
        {
            map.putComment(key, _lastComment);
        }
    }

    private void putEmptyLines(CommentedMap map, String key)
    {
        if (getConfig().isEmptyLines())
        {
            for (int i = 0; i < _emptyLines; i++)
            {
                map.addEmptyLine(key);
            }
        }
    }
}