AS2Tools.java

//$Header: /cvsroot-fuse/mec-as2/39/mendelson/util/AS2Tools.java,v 1.1 2012/04/18 14:10:41 heller Exp $
package de.mendelson.util;

import java.io.File;
import java.io.IOException;
import java.text.DateFormat;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Formatter;
import java.util.Locale;

/*
 * Copyright (C) mendelson-e-commerce GmbH Berlin Germany
 *
 * This software is subject to the license agreement set forth in the license.
 * Please read and agree to all terms before using this software.
 * Other product and brand names are trademarks of their respective owners.
 */
/**
 * Some programming tools for mendelson business integration
 * @author S.Heller
 * @version $Revision: 1.1 $
 */
public class AS2Tools {

    /** Replaces the string tag by the string replacement in the sourceString
     * @param source Source string
     * @param tag	String that will be replaced
     * @param replacement String that will replace the tag
     * @return String that contains the replaced values
     */
    public static String replace(String source, String tag, String replacement) {
        if (source == null) {
            return null;
        }
        StringBuilder buffer = new StringBuilder();
        while (true) {
            int index = source.indexOf(tag);
            if (index == -1) {
                buffer.append(source);
                return (buffer.toString());
            }
            buffer.append(source.substring(0, index));
            buffer.append(replacement);
            source = source.substring(index + tag.length());
        }
    }

    /**Creates a temp file in a data stamped folder below the directory temp. It is tried
     * to keep the passed suggested filename - if it exists a new one is chosen
     */
    public static synchronized File createTempFile(String prefix, String suffix) throws IOException {
        DateFormat dateformat = new SimpleDateFormat("yyyyMMdd");
        String tempDirStr = new File("temp").getAbsolutePath();
        File targetDir = new File(tempDirStr + File.separator + dateformat.format(new Date()));
        if (!targetDir.exists()) {
            boolean created = targetDir.mkdirs();
            if (!created) {
                throw new IOException("Unable to create directory " + targetDir.getAbsolutePath());
            }
        }
        //try to create a temp file with exact the passed name
        File tempfileExact = new File( targetDir.getAbsoluteFile() + File.separator + prefix + suffix );
        if( !tempfileExact.exists()){
            return( tempfileExact );
        }else{        
            //create a unique file in the temp subdirectory
            File tempFile = File.createTempFile(prefix, suffix, targetDir);
            return (tempFile);
        }
    }
    
    /**Displays the passed data size in a proper format
     */
    public static  String getDataSizeDisplay(long size) {
        StringBuilder builder = new StringBuilder();
        Formatter formatter = new Formatter(builder);
        if (size > 1.048E6) {
            formatter.format(Locale.getDefault(), "%.2f", Float.valueOf((float) size / (float) 1.048E6));
            builder.append(" ").append("MB");
            return (builder.toString());
        } else if (size > 1024L) {
            formatter.format(Locale.getDefault(), "%.2f", Float.valueOf((float) size / 1024f));
            builder.append(" ").append("KB");
            return (builder.toString());
        }
        return (String.valueOf(size) + " Byte");
    }

    
    /**Displays a duration*/
    public static String getTimeDisplay(long duration) {
        NumberFormat formatter = new DecimalFormat("0.00");
        if (duration < 1000) {
            return (duration + "ms");
        }
        float timeInSecs = (float) ((float) duration / 1000f);
        return (formatter.format(timeInSecs) + "s");
    }
}