de.thischwa.pmcms.tool.connection.PathConstructor.java Source code

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Here is the source code for de.thischwa.pmcms.tool.connection.PathConstructor.java

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/*******************************************************************************
 * Poor Man's CMS (pmcms) - A very basic CMS generating static html pages.
 * http://poormans.sourceforge.net
 * Copyright (C) 2004-2013 by Thilo Schwarz
 * 
 * == BEGIN LICENSE ==
 * 
 * Licensed under the terms of any of the following licenses at your
 * choice:
 * 
 *  - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
 *    http://www.gnu.org/licenses/lgpl.html
 * 
 *  - Mozilla Public License Version 1.1 or later (the "MPL")
 *    http://www.mozilla.org/MPL/MPL-1.1.html
 * 
 * == END LICENSE ==
 ******************************************************************************/
package de.thischwa.pmcms.tool.connection;

import org.apache.commons.lang.StringUtils;

/**
 * Simple string tool to construct paths like a/b/c.
 *
 * @author Thilo Schwarz
 */
public class PathConstructor {
    private static char separator = '/';
    private StringBuilder sb = new StringBuilder();

    public PathConstructor setAbsolute() {
        if (!startWithSeparator())
            sb.insert(0, separator);
        return this;
    }

    public PathConstructor add(final String path) {
        if (StringUtils.isBlank(path) || path.equals("" + separator))
            return this;
        if (sb.length() == 0) {
            sb.append(path);
            return this;
        }
        String tempString;
        if (path.startsWith("" + separator))
            tempString = path.substring(1);
        else
            tempString = path;
        if (!endWithSeparator())
            sb.append(separator);
        sb.append(tempString);
        return this;
    }

    public boolean isAbsolute() {
        return startWithSeparator();
    }

    public String[] getDirs() {
        if (sb.length() == 0 || sb.toString().equals("" + separator))
            return new String[] {};
        String string = sb.toString();
        if (!string.contains("" + separator))
            return new String[] { string };
        return StringUtils.split(string, separator);
    }

    private boolean startWithSeparator() {
        return (sb.length() == 0) ? false : (sb.charAt(0) == separator);
    }

    private boolean endWithSeparator() {
        return (sb.length() == 0) ? false : (sb.charAt(sb.length() - 1) == separator);
    }

    /* Constructs the whole path.
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        return sb.toString();
    }
}