util.java

openacs source for CPE wan management

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package org.openacs;

import javax.faces.context.ExternalContext;
import javax.servlet.http.HttpServlet;

/**
 *
 * @author Administrator
 */
public class Util {
    private static final String FWPATH = "org.openacs.fwbase";

    private static String getFirmwarePath(String fwbase) {
        if (fwbase == null) fwbase = "c:/firmware/";
        String osname = (String)System.getProperty("os.name");
        if (!osname.startsWith("Windows") && fwbase.charAt(1)==':') {
            fwbase = fwbase.substring(2);
        }
        return fwbase;
    }

    
    public static String getFirmwarePath(ExternalContext ctx) {
        return getFirmwarePath(ctx.getInitParameter(Util.FWPATH));
    }
    public static String getFirmwarePath(HttpServlet servlet) {
        return getFirmwarePath(servlet.getInitParameter(Util.FWPATH));
    }
    private static char[] HEX = "0123456789abcdef".toCharArray();
    static public String cvtHex(byte[] data) {
        StringBuilder b = new StringBuilder();
        for (int i = 0; i < data.length; i++) {
            b.append(HEX[(data[i] >> 4) & 0xf]);
            b.append(HEX[data[i] & 0xf]);
        }
        return b.toString();
    }

}