AIR.Common.Utilities.Path.java Source code

Introduction

Here is the source code for AIR.Common.Utilities.Path.java

Source

/*******************************************************************************
 * Educational Online Test Delivery System Copyright (c) 2014 American
 * Institutes for Research
 * 
 * Distributed under the AIR Open Source License, Version 1.0 See accompanying
 * file AIR-License-1_0.txt or at http://www.smarterapp.org/documents/
 * American_Institutes_for_Research_Open_Source_Software_License.pdf
 ******************************************************************************/
/**
 * 
 */
package AIR.Common.Utilities;

import java.io.File;
import java.net.URI;
import java.util.Collection;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.filefilter.IOFileFilter;
import org.apache.commons.io.filefilter.TrueFileFilter;
import org.apache.commons.lang3.StringUtils;

/**
 * @author Shiva BEHERA [sbehera@air.org]
 * 
 */
public class Path {
    public static String combine(String dir, String fileName) {
        return combine(dir, fileName, File.separator);
    }

    public static String combine(String dir, String fileName, String separator) {
        // TODO: needs review
        dir = dir.replace("/", separator);
        dir = dir.replace("\\", separator);
        // End
        if (StringUtils.isEmpty(dir))
            return fileName;
        else if (StringUtils.isEmpty(fileName))
            return dir;
        if (dir.endsWith(separator) || fileName.startsWith(separator)) {
            return String.format("%s%s", dir, fileName);
        } else {
            return String.format("%s%s%s", dir, separator, fileName);
        }
    }

    /*
     * This has the same semantics as Path
     * http://msdn.microsoft.com/en-us/library/system.io.path.getfilename.aspx
     */
    public static String getFileName(String path) {
        return FilenameUtils.getName(path);
    }

    public static boolean isAbsolute(String path) {
        File f = new File(path);
        return f.exists() && f.isAbsolute();
    }

    public static boolean exists(String path) {
        return (new File(path)).exists();
    }

    public static String getFileNameWithoutExtension(String fileName) {
        return FilenameUtils.getBaseName(fileName);
    }

    public static String getExtension(String fileName) {
        return FilenameUtils.getExtension(fileName);
    }

    public static String getDirectoryName(String path) {
        if (StringUtils.endsWith(path, "/") || StringUtils.endsWith(path, "\\"))
            return path.substring(0, path.length() - 1);
        File f = new File(path);
        return f.getParent();
    }

    public static Collection<File> getFilesMatchingExtensions(String folder, final String[] extensions) {
        return (Collection<File>) FileUtils.listFiles(new File(folder), new IOFileFilter() {
            @Override
            public boolean accept(File arg0) {
                return matches(arg0.getAbsolutePath());
            }

            @Override
            public boolean accept(File arg0, String arg1) {
                return matches(arg1);
            }

            private boolean matches(String file) {
                for (int counter1 = 0; counter1 < extensions.length; ++counter1) {
                    if (StringUtils.endsWithIgnoreCase(file, extensions[counter1]))
                        return true;
                }
                return false;
            }

        }, TrueFileFilter.INSTANCE);
    }

    public static void main(String[] arhs) {
        try {
            String folder = "C:/WorkSpace/Student-Geo-SBACOSS/ItemPreview/TDS.ItemPreview.Web";
            for (File file : Path.getFilesMatchingExtensions(folder, new String[] { ".xml" })) {
                System.err.println(file.getAbsolutePath());
            }
        } catch (Throwable exp) {
            exp.printStackTrace();
        }
    }

}